C$ 331 Find Cheap Flights from Ottawa to Houston – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to Houston departing on 17/8. 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
1 adult, Economy, 0 bags

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
C$ 539
Typical prices: C$ 851-C$ 990
Multiple Airlines
Sat 25/7Sun 9/8
YOW - IAH • 1 stop
Cheapest one-way flights
C$ 331
Multiple Airlines
Mon 17/8
YOW - IAH • 2 stops
Top airlines
Cheapest • from C$ 646 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Houston!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ottawa to Houston (YOW-HOU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa to Houston 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ottawa to Houston

Sat, 25 Jul - Sun, 9 Aug
Multiple Airlines Logo
7:00 a.m. - 2:50 p.m.
YOW
-
IAH
8h 50m
1 stop
Multiple Airlines Logo
8:16 a.m. - 2:55 p.m.
IAH
-
YOW
29h 39m
1 stop
C$ 539Multiple Airlines
Tue, 11 Aug - Mon, 17 Aug
Multiple Airlines Logo
7:00 a.m. - 3:05 p.m.
YOW
-
IAH
33h 05m
2 stops
Multiple Airlines Logo
1:16 p.m. - 11:48 p.m.
IAH
-
YOW
9h 32m
1 stop
C$ 544Multiple Airlines
Fri, 24 Jul - Sun, 9 Aug
Multiple Airlines Logo
7:00 a.m. - 10:39 p.m.
YOW
-
IAH
40h 39m
2 stops
Multiple Airlines Logo
8:16 a.m. - 2:55 p.m.
IAH
-
YOW
29h 39m
1 stop
C$ 545Multiple Airlines
Tue, 11 Aug - Sun, 16 Aug
Multiple Airlines Logo
2:10 p.m. - 7:20 a.m.
YOW
-
IAH
18h 10m
2 stops
Multiple Airlines Logo
8:16 a.m. - 2:55 p.m.
IAH
-
YOW
29h 39m
1 stop
C$ 555Multiple Airlines
Tue, 1 Sep - Mon, 14 Sep
WestJet Logo
6:55 a.m. - 4:25 p.m.
YOW
-
HOU
10h 30m
2 stops
WestJet Logo
2:25 p.m. - 12:20 a.m.
HOU
-
YOW
8h 55m
2 stops
C$ 1,026WestJet
Fri, 2 Oct - Mon, 5 Oct
WestJet Logo
6:55 a.m. - 4:31 p.m.
YOW
-
HOU
10h 36m
2 stops
WestJet Logo
6:00 a.m. - 12:20 a.m.
HOU
-
YOW
17h 20m
2 stops
C$ 1,063WestJet
Fri, 30 Oct - Sun, 1 Nov
WestJet Logo
5:40 a.m. - 11:09 p.m.
YOW
-
HOU
18h 29m
2 stops
WestJet Logo
5:28 p.m. - 12:42 a.m.
HOU
-
YOW
30h 14m
2 stops
C$ 1,114WestJet
Thu, 6 Aug - Wed, 12 Aug
Delta Logo
6:55 a.m. - 10:05 p.m.
YOW
-
HOU
16h 10m
2 stops
Delta Logo
6:00 a.m. - 12:20 a.m.
HOU
-
YOW
17h 20m
2 stops
C$ 1,184Delta
Tue, 21 Jul - Tue, 11 Aug
Delta Logo
6:55 a.m. - 9:51 p.m.
YOW
-
HOU
15h 56m
2 stops
Delta Logo
6:00 a.m. - 12:20 a.m.
HOU
-
YOW
17h 20m
2 stops
C$ 1,191Delta
Sat, 25 Jul - Sat, 1 Aug
Delta Logo
6:55 a.m. - 9:51 p.m.
YOW
-
HOU
15h 56m
2 stops
Delta Logo
5:35 p.m. - 12:20 a.m.
HOU
-
YOW
29h 45m
2 stops
C$ 1,204Delta
Booking Insights

KAYAK's insights & trends for Ottawa to Houston flights

Get data-powered insights and trends into flights from Ottawa to Houston to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Ottawa to Houston?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ottawa to Houston departing in July.

What is the cheapest month to fly from Ottawa to Houston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ottawa to Houston, 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 Ottawa to Houston is December, where tickets cost C$ 314 (return) on average. On the other hand, the most expensive months are January and August, where the average cost of round-trip tickets is C$ 803 and C$ 759 respectively.

Good to know

Cheapest flightC$ 331
Flight from Ottawa to Houston George Bush Airport

When to book flights from Ottawa to Houston

Are your dates flexible? Find out the best times to travel from Ottawa to Houston 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 flights from Ottawa to Houston

  • What is the cheapest flight from Ottawa to Houston?

    In the last 5 days, the lowest price for a flight from Ottawa to Houston was C$ 331 for a one-way ticket and C$ 539 for a round-trip.

  • Which airports will I be using when flying from Ottawa to Houston?

    On your way to Houston, you’ll fly out from Ottawa. You’ll be landing in one of Houston’s 2 airports: Houston Hobby or Houston George Bush Intcntl.

  • Which aircraft models fly most regularly from Ottawa to Houston?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ottawa to Houston?

    Star Alliance is the only airline alliance operating flights between Ottawa and Houston.

  • How does KAYAK find such low prices on flights from Ottawa to Houston?

    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 Ottawa to Houston.

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

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

  • What is the Hacker Fare option on flights from Ottawa to Houston?

    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 with an airline and back to Ottawa with another airline.

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

    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 from Ottawa up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Ottawa to Houston

 
See real verified KAYAK customer reviews for airlines flying from Ottawa 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 Ottawa to Houston? 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.
7.4
United AirlinesOverall score based on 9930 reviews
7.7Boarding
7.3Comfort
6.7Food
8.1Crew
7.1Entertainment
Airline reviews

Crew were welcoming, accommodating and they worked hard to find places for all carry on.

10.0 ExcellentPatricia, Jun 2026
YOW - EWR
Read more United Airlines reviews

Crew were welcoming, accommodating and they worked hard to find places for all carry on.

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

Everything was good. Flight was on time, luggage pickup was quick. The staff were great. Could not ask for anything more.

-The cabin was ice cold - When we arrived in Houston there was no gate available -We had to wait 90 minutes for our luggage to arrive.. In the future I will avoid flying with Air Canada at at costs

We enjoyed that we boarded and took off on time. We didn’t like that our connection flight was a twenty minute walk through the airport with only one hour in between flights.

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

The flight I was connecting with waited for me even though my 1st flight was late. I really appreciated that.

The flight was good. My luggage didn’t land with me when I arrived in Columbus. So grateful I was able to get my luggage back within the 2 hours😍👍.

The ground staff was so rude in Toronto airport ...very rude and did not answer simple questions, and made me look like a fool. Very rude ground staff.

As previously mentioned in last review , seats are small and uncomfortable, and baggage fees are high!

We got home a day late because of mechanical problems and that they wouldn’t put us on available other flights.

The Flight Attendant was particularly helpful to my wife, who was having a bad day.

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

The flight was good they didn’t take off on schedule

It was a pleasant flight all around. The staff were courteous and it went by quickly. The pilot was great and the plane, well, I just couldn't do it without them. Blessed to arrive safely, thank you.

The connecting flight was delayed and though months in advance, airline changed the layover from 4 hours to 13+ hours. To go back to a 4 hour layover, we'd have to pay $1000+ extra PER PERSON.

Flight cancelled after 1 hour delay No explanation Auto Rebooked to a flight the next day

Everything you need to know for your flight from Ottawa to Houston

Information on your arrival and departure airports