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Find cheap flights from Calgary to Houston George Bush Airport from C$ 192

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Calgary to George Bush Intcntl departing on 21/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 2/6
Sun 9/6

Search hundreds of travel sites at once for deals on flights to Houston George Bush Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Calgary to Houston.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Calgary to Houston.
In the last 7 days, travellers have searched 43,740,974 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Cheap flight deals from Calgary to George Bush Intcntl (YYC-IAH)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Calgary to George Bush Intcntl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:15 p.m. - 5:22 p.m.YYC-IAH
4h 07mdirect
6:15 p.m. - 9:34 p.m.IAH-YYC
4h 19mdirect
C$ 404WestJet
Find Deal
Fri, 9 Aug - Sun, 18 Aug
12:15 p.m. - 5:22 p.m.YYC-IAH
4h 07mdirect
6:15 p.m. - 9:34 p.m.IAH-YYC
4h 19mdirect
C$ 406WestJet
Find Deal
Mon, 22 Jul - Mon, 29 Jul
7:00 a.m. - 9:00 p.m.YYC-IAH
13h 00m1 stop
5:38 a.m. - 1:20 p.m.IAH-YYC
8h 42m1 stop
C$ 407
Find Deal
Fri, 31 May - Fri, 7 Jun
9:50 a.m. - 8:16 p.m.YYC-IAH
9h 26m1 stop
2:12 p.m. - 10:05 p.m.IAH-YYC
8h 53m1 stop
C$ 408
Find Deal
Sat, 1 Jun - Sat, 8 Jun
12:30 a.m. - 11:14 a.m.YYC-IAH
9h 44m1 stop
10:02 a.m. - 12:43 a.m.IAH-YYC
15h 41m2 stops
C$ 410
Find Deal
Mon, 20 May - Tue, 18 Jun
6:50 a.m. - 5:19 p.m.YYC-IAH
9h 29m1 stop
10:46 a.m. - 8:43 p.m.IAH-YYC
10h 57m1 stop
C$ 411Delta
Find Deal
Wed, 25 Sep - Wed, 2 Oct
6:50 a.m. - 3:37 p.m.YYC-IAH
7h 47m1 stop
10:46 a.m. - 8:43 p.m.IAH-YYC
10h 57m1 stop
C$ 454Delta
Find Deal
Wed, 4 Sep - Wed, 11 Sep
1:51 p.m. - 7:02 p.m.YYC-IAH
4h 11mdirect
4:20 p.m. - 12:07 a.m.IAH-YYC
8h 47m1 stop
C$ 534Air Canada
Find Deal
Fri, 14 Jun - Sun, 23 Jun
1:00 a.m. - 12:29 p.m.YYC-IAH
10h 29m1 stop
4:20 p.m. - 12:07 a.m.IAH-YYC
8h 47m1 stop
C$ 615Air Canada
Find Deal
Thu, 13 Jun - Sun, 23 Jun
1:51 p.m. - 6:58 p.m.YYC-IAH
4h 07mdirect
9:57 p.m. - 1:50 p.m.IAH-YYC
16h 53m1 stop
C$ 702United Airlines
Find Deal
Tue, 24 Sep - Mon, 30 Sep

Flights from Calgary to George Bush Intcntl - Travel Insights & Trends

Get data-powered insights and trends into flights from Calgary to George Bush Intcntl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Calgary to Houston George Bush Airport?

The average price of all flights from Calgary to Houston George Bush Intcntl Airport clicked on KAYAK for each day over the last 12 months.
When flying from Calgary to Houston George Bush Airport, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Calgary, you’ll find the best rates on Sundays and the most expensive ones on Thursdays.

What is the cheapest month to fly from Calgary to Houston George Bush Intcntl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Calgary to Houston George Bush Intcntl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Calgary to Houston George Bush Intcntl Airport is October, where tickets cost C$ 352 on average. On the other hand, the most expensive months are March and February, where the average cost of tickets is C$ 547 and C$ 545 respectively.

How far in advance should I book a flight from Calgary to Houston George Bush Intcntl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Calgary to Houston George Bush Intcntl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Calgary to Houston George Bush Intcntl Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 72 days before departure.

Which airlines provide the cheapest flights from Calgary to Houston George Bush Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on WestJet (C$ 230) and Delta (C$ 243). The cheapest round-trip tickets were found on WestJet (C$ 404) and Delta (C$ 411).

Which airlines fly direct between Calgary and Houston George Bush Intcntl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Calgary to Houston George Bush Intcntl Airport.
There are 2 airlines that fly direct from Calgary to Houston George Bush Intcntl Airport. They are United Airlines and WestJet. The cheapest airline for this route is United Airlines, with the best deal found costing C$ 230. On average, the best prices for this route can be found at WestJet.

How many flights are there between Calgary and Houston George Bush Intcntl Airport per day?

Each day, there are between 2 and 4 nonstop flights that take off from Calgary and land in Houston George Bush Intcntl Airport, with an average flight time of 4h 11m. The most common departure time is 6:00 a.m. and most flights take off in the morning. Each week, there are 23 flights. The most frequent day of departure is Monday, when 17% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Calgary and Houston George Bush Intcntl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Calgary to Houston George Bush Airport take?

Direct flights take on average 4h 03m to travel the 4,524 km between Calgary and Houston George Bush Airport.

What’s the earliest departure time from Calgary to Houston George Bush Airport?

Early birds can take the earliest flight from Calgary at 6:00 am and will be landing in Houston George Bush Intcntl Airport at 11:11 am.

What’s the latest departure time from Calgary to Houston George Bush Airport?

If you prefer to fly at night, the latest flight from Calgary to Houston George Bush Intcntl Airport jets off at 6:45 pm and lands at 11:55 pm.

Good to know

Low season

January

High season

April

Cheapest flight

C$ 192
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from Calgary to Houston George Bush Airport

When to book flights from Calgary to George Bush Intcntl

Are your dates flexible? Find out the best times to travel from Calgary to George Bush Intcntl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Calgary to Houston George Bush Airport flights

  • What is the cheapest flight from Calgary to Houston George Bush Intcntl Airport?

    In the last 3 days, the lowest price for a flight from Calgary to Houston George Bush Intcntl Airport was C$ 140 for a one-way ticket and C$ 295 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Calgary to Houston George Bush Airport?

    Air Canada, WestJet, and American Airlines offer inflight Wi-Fi service on the Calgary to Houston George Bush Airport flight route.

  • Which aircraft models fly most regularly from Calgary to Houston George Bush Airport?

    The Airbus A319 is the aircraft model that flies most regularly on the Calgary to Houston George Bush Airport flight route.

  • Which airline alliances offer flights from Calgary to Houston George Bush Airport?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Calgary and Houston George Bush Airport, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Calgary to Houston George Bush Airport?

    There are direct flights from Calgary to Houston George Bush Airport on a daily basis.

  • Which is the best airline for flights from Calgary to Houston, Delta or WestJet?

    The two airlines most popular with KAYAK users for flights from Calgary to Houston are Delta and WestJet. With an average price for the route of C$ 522 and an overall rating of 8.0, Delta is the most popular choice. WestJet is also a great choice for the route, with an average price of C$ 439 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Calgary to Houston George Bush Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Calgary to Houston George Bush Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Calgary to Houston George Bush Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston George Bush Airport from Calgary is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Calgary to Houston George Bush Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Houston George Bush Airport with an airline and back to Calgary with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Calgary to Houston George Bush Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Houston George Bush Airport from Calgary up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Calgary to Houston

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 273 or less one-way and C$ 592 or less round-trip.

Prefer to fly non-stop from Calgary to Houston George Bush Airport?

Find which airlines fly direct from Calgary to George Bush Intcntl, which days they fly and book direct flights.

Nonstop departures

Calgary to Houston George Bush Intcntl

Monday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

Tuesday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

Wednesday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

Thursday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

Friday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

Saturday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

Sunday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

See more nonstop flights

Nonstop returns

Houston George Bush Intcntl to Calgary

Monday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

Tuesday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

Wednesday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

Thursday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

Friday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

Saturday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

Sunday

Aeromexico, Air Canada, Air New Zealand, +4 more

Aeromexico, Air Canada, +5 more

See more nonstop flights
See more nonstop flights

Top 5 airlines serving from Calgary to George Bush Intcntl

 
See real verified KAYAK customer reviews for airlines flying from Calgary to Houston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Calgary to George Bush Intcntl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
WestJet EncoreOverall score based on 54 reviews
7.6Comfort
7.4Food
8.6Boarding
8.7Crew
7.5Entertainment
Airline reviews

Great flight, comfort, and staff. Prefer tv in back of seat but watching on phone will do

10.0 ExcellentDarren, May 2023YYZ - LAX
Read more about WestJet Encore reviews

Great flight, comfort, and staff. Prefer tv in back of seat but watching on phone will do

Pros: "Friendly staff and the support they offered to my mother who needed a wheelchair."
Cons: "I would have liked to have had WestJet internet and entertainment access. It was not offered on our flight from Toronto to Fredericton."
Pros: "The fact that military personnel and retired military personnel and their spouse can check in luggage for free. The check in crew was also very courteous."
Pros: "It ran on time. The pilot landed the plane without a big jolt. We could board and deplane using 2 exits."
Cons: "Seat space"
Pros: "Rotten stuff cancels out the good doesn't it. Be great if you could take some courses from Stephen Covey as you are missing some skills sets in hospitality. And stop being so cheap with the 3rd rate old old movies!"
Cons: "I did not appreciate having the second row to the last on my 2nd plane coming back - I only had a turn around time of 20 minutes to catch my third Westjet flight. When we asked if the plane would wait for us - your crew just laughed in our faces."
Pros: "Great, friendly crew in this scenic trip across to Victoria. Nice new aircraft operating this route."
Pros: "Cheerfulness of WestJet employees."
Cons: "Seat comfort; seats hard. Person next to me average size but still spilled into my seat with “man-spreading” and shoulders."
Pros: "Efficient crew and reasonable seating"
Cons: "Need more legroom or a device to fold passenger legs for the flight duration..."
Pros: "Crew was good. Seats need to be updated and are confining. I appreciated being able to disembark through front and rear door."
Cons: "More space between the seats."
Pros: "the crew was very polite but the flight was too short to have a meal"
Cons: "delayed embarking"

The crew were very welcoming and helpful. I just wish economy had a bit more leg room. My knees were constantly hitting the chair in front of me.

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

I like WJ but I don’t like traveling anymore

Good flight. No I’m seat entertainment. But my phone worked just fine on the west jet app.

4 hour delay, lost our bags, staff was loud and it was an overnight flight

We were late boarding, but it all worked out. So, no problem.

It was good but not comfortable seat with the long legged persons.

No problems here. WestJet does a good job, even on their short haul flights

Boarding was fine, but then we were delayed a while due to some baggage issues, then de-icing.

Tried to reserves seats and WestJet My Trip shows not available until 24 hours before the flight. When check-in was finally available and I tried to get seats again I was not able to get to select seats for me and my wife together. All in all, was not able to select seats together on Kiwi, paid extra for seats on Westjet and still did not got seats together, not pleasant for such a long flight and with my wife not very good with flying, disappointed on the way the system works with regarding to seats reservations, even with paying extra for them.

Flight full. 'Volunteers' to check hand luggage. Checked hand luggage is lost

Not the fault of WestJet but we had to wait in the plane on the tarmac in Cancun for 1 hour.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

Boarding was unorganized. They expected passengers to ask people to move their assigned seat they paid for in order to sit together. The seats even in comfort are smaller than other airlines and the flight attendants appeared not to be well prepared

Two flights,both poor. No entertainment. Cramped and uncomfortable seats, little space, the rest was OK. Staff were acceptable good.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Terrible. 2 hour delay. Sat on the tarmac. Missed my connecting flight. Had to ARGUE with Customer service to get a hotel and food. Terrible experience with my loyal carrier

I liked the exit row seat. Hated the distance between gates in Houston.

The customer service was excellent! Check-in, baggage check-in, boarding, the flight went very smooth.

Leg room was lacking. Legs crammed into seat in front.

It was delayed several hours which delayed our connection in Denver. Not happy.

Ok, but comfort was lacking as the seats were way to small

I think Air Canada is the only airline I've flown where they don't give you at least a free cookie.

All but one of four were on time. One was delayed for an hour

Not happy with Air Canada . Flight was cancelled got the run around trying to get another flight that was direct none to be found ended up going to Denver then onto Austin adding 7 hours to our trip. Was travelling with some one who had walking issues that’s why we were happy to have a direct flight then it didn’t happen adding more stress on her

It took 5 hour to get a crew to D Ice the plan. We had to sit on the runway for 5 hrs. in Calgary. It snows most of the winter. No proactive plan. In addition, after 3 calls to customer service they couldn't figure out how to have my wife and myself sit together on her birthday weekend. Everybody kept passing the buck. No decision from customer service, luggage drop off or check in team. The experience was a complete mess! I don't think we'll ever fly on this airline again.

The wifi I paid for did not work. The seats are tight.

There were no free snacks…little pretzel bag or cookies like we had on our flight out.

Mostly crew good and the flight was safe and comfortable but service was lacking. For an overnight flight of 8hrs 50 it took some two hours to get served a drink and dinner after take off. I asked for Laurent Perrier champagne and was brought Perrier water, which I queried and asked where was the champagne. No response. The issue came up again an hour later when dinner was starting to be served and I was asked whether I wanted another drink, when I reminded I was still waiting for my first champagne! Apologies ensued but dinner service was quite slow. For breakfast I never did get served the hot course! So - no complaints and compliments on the safety of the flight but service underwhelming (and I brought them candies!)

Check in was great! Boarding was very good. The plane was just okay! The crew were great!

On time departure with early arrivals. My last flight arrived 20 minutes ahead of schedule which was great due to my long commute home 3+ hours. The cabin crews on all 3 flights were great. See ya in 7 days Air Canada

Well organized check in and boarding. Aircraft had comfortable seats and lots of leg space, both ground staff and crew members were nice.

Book cheap flights from Calgary to Houston

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Calgary to Houston found on KAYAK in the last 72 hours.
21/5Tue
1 stop
9h 34mYYC-IAH
C$ 192
14/5Tue
1 stop
15h 27mYYC-IAH
C$ 201
1/7Mon
directWestJet
4h 03mYYC-IAH
C$ 230
3/7Wed
directWestJet
4h 03mYYC-IAH
C$ 234
27/5Mon
1 stopDelta
9h 29mYYC-IAH
C$ 243
25/6Tue
1 stopAir Canada
7h 31mYYC-IAH
C$ 266
1/7Mon
directAir Canada
4h 11mYYC-IAH
C$ 337
2/7Tue
1 stopDelta
6h 37mYYC-IAH
C$ 341
27/5Mon
2 stopsUnited Airlines
10h 00mYYC-IAH
C$ 530
27/5Mon
2 stopsUnited Airlines
13h 50mYYC-IAH
C$ 567

Search by stops

Search by airline

Search by price

Last minute flights from Calgary to George Bush Intcntl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Calgary to Houston that are departing in the next 10 days.
5/5Sun
multi-stop
14h 42mYYC-IAH
9/5Thu
multi-stop
17h 44mIAH-YYC
C$ 543
6/5Mon
multi-stop
29h 17mYYC-IAH
9/5Thu
multi-stop
17h 44mIAH-YYC
C$ 602
5/5Sun
multi-stop
14h 42mYYC-IAH
9/5Thu
multi-stop
16h 01mIAH-YYC
C$ 607
6/5Mon
multi-stop
29h 17mYYC-IAH
8/5Wed
multi-stop
27h 36mIAH-YYC
C$ 652
6/5Mon
multi-stop
24h 53mYYC-IAH
8/5Wed
multi-stop
27h 36mIAH-YYC
C$ 661
7/5Tue
directWestJet
4h 12mYYC-IAH
10/5Fri
directWestJet
4h 09mIAH-YYC
C$ 868
6/5Mon
multi-stopAir Canada
11h 19mYYC-IAH
10/5Fri
directAir Canada
4h 29mIAH-YYC
C$ 1,117
5/5Sun
multi-stopUnited Airlines
9h 49mYYC-IAH
8/5Wed
directUnited Airlines
4h 29mIAH-YYC
C$ 1,218
4/5Sat
multi-stopAir Canada
15h 58mYYC-IAH
8/5Wed
directAir Canada
4h 29mIAH-YYC
C$ 1,250
5/5Sun
directWestJet
4h 10mYYC-IAH
8/5Wed
directWestJet
4h 21mIAH-YYC
C$ 1,395

Search by stops

Search by airline

Search by price

Calgary - Houston George Bush Airport Flights

Departure:

Calgary (YYC)Canada

Destination:

Houston George Bush Airport (IAH)United States

Return flight deals:

Houston George Bush Airport - Calgary

Cabin classes:

C$ 2,870
C$ 1,571
C$ 2,999
C$ 467