C$ 312 Find Cheap Flights from Ottawa to Houston – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 509
Typical prices: C$ 644-C$ 992
WestJet
Sun 7/10Sun 14/10
YOW - IAH • 1 stop
Cheapest one-way flights
C$ 312
Typical prices: C$ 397-C$ 630
Multiple Airlines
Wed 24/10
YOW - IAH • 3 stops
Direct flights
Not available
There are currently no direct flights between Ottawa and Houston. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
24 weeks
in advance
Our data shows that travellers who book at least 24 weeks in advance save around 65% compared to booking last minute.
Insights
Insights
When to travel
November
Cheapest • 19% price drop
March
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Fort Lauderdale (FLL)
Cheapest • Avg C$ 490 (round-trip)
Montreal Pierre Elliott Trudeau Intl (YUL)
Shortest trip • 6h 26m (one-way)
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Houston!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ottawa to Houston (YOW-HOU)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ottawa to Houston

Wed, 7 Oct - Wed, 14 Oct
WestJet Logo
4:15 p.m. - 10:40 p.m.YOW  Ottawa-IAH Houston George Bush Intcntl
31h 25m1 stop Calgary
WestJet Logo
2:50 p.m. - 5:35 a.m.IAH  Houston George Bush Intcntl-YOW Ottawa
13h 45m1 stop Calgary
C$ 509WestJet
Sat, 10 Oct - Sat, 17 Oct
WestJet Logo
4:15 p.m. - 10:40 p.m.YOW  Ottawa-IAH Houston George Bush Intcntl
31h 25m1 stop Calgary
WestJet Logo
2:50 p.m. - 5:15 p.m.IAH  Houston George Bush Intcntl-YOW Ottawa
25h 25m1 stop Calgary
C$ 513WestJet
Thu, 26 Nov - Mon, 30 Nov
WestJet Logo
6:10 a.m. - 10:15 p.m.YOW  Ottawa-IAH Houston George Bush Intcntl
17h 05m1 stop Calgary
WestJet Logo
8:00 a.m. - 12:01 a.m.IAH  Houston George Bush Intcntl-YOW Ottawa
15h 01m1 stop Calgary
C$ 517WestJet
Tue, 20 Oct - Tue, 27 Oct
Multiple Airlines Logo
8:15 p.m. - 1:55 p.m.YOW  Ottawa-IAH Houston George Bush Intcntl
18h 40m1 stop Calgary
Multiple Airlines Logo
8:21 p.m. - 5:20 p.m.IAH  Houston George Bush Intcntl-YOW Ottawa
19h 59m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale
C$ 521Multiple Airlines
Fri, 12 Feb - Sat, 20 Feb
Air Canada Logo
9:10 a.m. - 5:08 p.m.YOW  Ottawa-IAH Houston George Bush Intcntl
8h 58m1 stop Toronto Pearson Intl
Air Canada Logo
12:00 p.m. - 6:45 p.m.IAH  Houston George Bush Intcntl-YOW Ottawa
5h 45m1 stop Toronto Pearson Intl
C$ 711Air Canada
Wed, 7 Oct - Wed, 14 Oct
Air Canada Logo
2:50 p.m. - 7:52 p.m.YOW  Ottawa-IAH Houston George Bush Intcntl
6h 02m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
10:00 a.m. - 5:29 p.m.IAH  Houston George Bush Intcntl-YOW Ottawa
6h 29m1 stop Montreal Pierre Elliott Trudeau Intl
C$ 729Air Canada
Thu, 19 Nov - Sun, 22 Nov
Air Canada Logo
10:05 a.m. - 5:08 p.m.YOW  Ottawa-IAH Houston George Bush Intcntl
8h 03m1 stop Toronto Pearson Intl
Air Canada Logo
11:55 a.m. - 7:45 p.m.IAH  Houston George Bush Intcntl-YOW Ottawa
6h 50m1 stop Toronto Pearson Intl
C$ 740Air Canada
Fri, 12 Feb - Sat, 20 Feb
United Airlines Logo
2:00 p.m. - 7:33 p.m.YOW  Ottawa-IAH Houston George Bush Intcntl
6h 33m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
7:20 a.m. - 9:56 p.m.IAH  Houston George Bush Intcntl-YOW Ottawa
13h 36m2 stops Chicago O'Hare Intl Newark
C$ 826United Airlines
Sat, 24 Oct - Mon, 26 Oct
United Airlines Logo
2:52 p.m. - 10:45 p.m.YOW  Ottawa-IAH Houston George Bush Intcntl
8h 53m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
United Airlines Logo
6:25 p.m. - 1:11 p.m.IAH  Houston George Bush Intcntl-YOW Ottawa
17h 46m2 stops Fort Lauderdale Newark
C$ 851United Airlines
Thu, 19 Nov - Sun, 22 Nov
United Airlines Logo
6:00 a.m. - 3:40 p.m.YOW  Ottawa-IAH Houston George Bush Intcntl
10h 40m2 stops Newark Chicago O'Hare Intl
United Airlines Logo
10:05 p.m. - 1:11 p.m.IAH  Houston George Bush Intcntl-YOW Ottawa
14h 06m2 stops Chicago O'Hare Intl Newark
C$ 863United Airlines
Booking Insights

Price, demand, and travel trends for Ottawa to Houston flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Ottawa to Houston with more confidence.

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

Round-trip flights from Ottawa to Houston start at C$ 509. Prices are below average for this route right now, with typical round-trip fares ranging from C$ 644 to C$ 992. The lowest price found in the past 5 days was C$ 509 on WestJet.

What's the cheapest day of the week to fly from Ottawa to Houston?

Monday is the cheapest day of the week to fly from Ottawa to Houston and is 20% cheaper than the average day. Sunday is the most expensive day with flight prices 9% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • November is the cheapest month to fly from Ottawa to Houston at C$ 695 round-trip.
  • August (C$ 1,005) and July (C$ 965) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 44% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Ottawa to Houston the cheapest?

Flights from Ottawa to Houston are cheapest 24 weeks before departure. Booking in this window typically costs about 65% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Ottawa to Houston flights

Low season

October

Cheapest flight

C$ 312
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flights from Ottawa to Houston George Bush Intcntl 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

Your Ottawa to Houston flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which airports can I use when flying from Ottawa to Houston?

    Flights from Ottawa to Houston usually depart from Ottawa (YOW) and may arrive at several airports in Houston area, including Houston Hobby (HOU) and Houston George Bush Intcntl (IAH).

  • Which cabin classes can I book on flights from Ottawa to Houston?

    Only Economy Class is available on flights from Ottawa to Houston.

  • Which airports do connecting flights from Ottawa to Houston pass through?

    One-stop flights from Ottawa to Houston most commonly connect through:

    • Toronto Pearson Intl (YYZ) – 44% of one-stop connections
    • Chicago O'Hare Intl (ORD) – 19% of one-stop connections
    • Washington, D.C. Dulles Intl (IAD) – 9% of one-stop connections
    • Orlando (MCO) – 8% of one-stop connections

    Toronto Pearson Intl (YYZ) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Ottawa to Houston?

    Yes. Being flexible with your travel dates can save you up to 27% on the Ottawa to Houston route. Monday is the cheapest departure day at C$ 691 round-trip on average, while Sunday is the most expensive at C$ 942, a difference of C$ 251. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • Which popular places can I visit in Houston?

    Some of the most popular sights in Houston are Downtown Houston, George R. Brown Convention Center, and Houston Stadium. These are among the most viewed places in Houston on KAYAK.

  • How expensive are last-minute Ottawa to Houston flights?

    Last-minute fares on this route – booked within 2 weeks of departure – run 26% above the route average of C$ 861. Book 24 weeks before departure for the lowest fares.

  • How long does a flight from Ottawa to Houston take?

    A direct flight from Ottawa to Houston takes 0h 00m, covering 3,923 km.

  • Do I need a passport to fly from Ottawa to Houston?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Ottawa to Houston changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 509 to C$ 1,749. That means the highest observed fare was about 3x higher than the lowest one.

  • How are flight prices from Ottawa to Houston looking right now?

    One-way fares from Ottawa to Houston are currently lower than usual. Average one-way flight prices are about C$ 402, which is 24% below the typical average for this route.

  • How much time can I save by choosing a different layover airport when travelling from Ottawa to Houston?

    Flying via Montreal Pierre Elliott Trudeau Intl (YUL) gives the shortest average 1-stop total travel time at 6h 26m, compared with 6h 27m via Washington, D.C. Reagan-National (DCA) and 6h 35m via Washington, D.C. Dulles Intl (IAD).

  • What is the time difference between Ottawa and Houston?

    Houston is 1 hour behind Ottawa (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available in Houston?

    Since Houston is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Houston George Bush Intcntl Airport (IAH) – daily rates from around C$ 4:

    · ACO Rent A Car
    · Easirent
    · America Car Rental
    · Hertz
    · Thrifty

    Near Houston Hobby Airport (HOU) – daily rates from around C$ 27:

    · Thrifty
    · Dollar
    · Alamo
    · Hertz
    · Budget

  • How much should I expect to pay for a Ottawa to Houston flight?

    Round-trip flights from Ottawa to Houston range from C$ 644 to C$ 992, with an average of C$ 861 over the past 12 months. Anything below C$ 644 counts as a good deal.

Your guide to booking Ottawa to Houston flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure instead of Sunday. On this route, Monday flights average C$ 691 – about C$ 251 less than Sunday (27% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 24 weeks before you fly. On this route, that window historically saves about 65% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Ottawa to Houston trip for November. Fares historically average C$ 695 round-trip in that month – typically C$ 310 less than the most expensive month, which is August (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, hotels close to the airport you're flying into can be a convenient option.

    Near Houston George Bush Intcntl Airport

    · Houston Airport Marriott at George Bush Intercontinental

    Near Houston Hobby Airport

    · DoubleTree by Hilton Hotel Houston Hobby Airport
    · Best Western Plus Hobby Airport Inn & Suites
    · Days Inn & Suites by Wyndham Houston Hobby Airport

More options for your flight from Ottawa to Houston

Complete your trip to Houston with a hotel stay or car rental

Car rentals in Houston
Hotels in Houston
Vacations in Houston