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$224+ Cheap flights from Ottawa (YOW) to Houston

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — HOU
Jul 24 — Jul 311
Fri 7/24
Fri 7/31
1 adult, Economy
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Cheap flight deals from Ottawa to Houston

Cheapest flights from Ottawa to Houston
Explore the most affordable flight options available from Ottawa to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:00 am
YOW
-
IAH
1 stop9h 05m
Multiple Airlines
Sun 8/238:35 am
IAH
-
YOW
1 stop29h 40m
Multiple Airlines
Deal found 6/19$377
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:00 am
YOW
-
IAH
2 stops10h 14m
Multiple Airlines
Mon 9/1412:21 pm
IAH
-
YOW
1 stop10h 27m
Multiple Airlines
Deal found 6/21$432
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/187:00 am
YOW
-
IAH
1 stop8h 50m
Multiple Airlines
Sat 8/17:23 pm
IAH
-
YOW
2 stops45h 12m
Multiple Airlines
Deal found 6/19$450
This Kiwi.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/277:00 am
YOW
-
IAH
1 stop8h 50m
Multiple Airlines
Thu 7/308:02 pm
IAH
-
YOW
2 stops17h 33m
Multiple Airlines
Deal found 6/22$451
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:00 am
YOW
-
IAH
2 stops32h 50m
Multiple Airlines
Sun 8/28:20 am
IAH
-
YOW
1 stop29h 35m
Multiple Airlines
Deal found 6/21$475
This Justfly.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:25 pm
YOW
-
IAH
2 stops11h 15m
WestJet
Fri 8/282:50 pm
IAH
-
YOW
2 stops19h 45m
WestJet
Deal found 6/20$488
This Kiwi.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:25 pm
YOW
-
IAH
2 stops11h 15m
WestJet
Thu 9/36:30 am
IAH
-
YOW
1 stop9h 45m
WestJet
Deal found 6/19$504
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/257:00 am
YOW
-
IAH
1 stop8h 50m
Multiple Airlines
Sat 8/159:42 pm
IAH
-
YOW
2 stops40h 13m
Multiple Airlines
Deal found 6/23$506
This oojo deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:25 pm
YOW
-
IAH
2 stops11h 15m
WestJet
Sun 8/306:30 am
IAH
-
YOW
1 stop9h 45m
WestJet
Deal found 6/21$511
This oojo deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:55 am
YOW
-
HOU
2 stops16h 10m
WestJet
Mon 9/142:25 pm
HOU
-
YOW
2 stops8h 55m
WestJet
Deal found 6/21$694
This oojo deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:55 am
YOW
-
HOU
2 stops15h 56m
WestJet
Tue 8/45:20 pm
HOU
-
YOW
2 stops30h 00m
WestJet
Deal found 6/22$769
This oojo deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:25 pm
YOW
-
HOU
2 stops23h 06m
WestJet
Mon 9/212:25 pm
HOU
-
YOW
2 stops8h 55m
WestJet
Deal found 6/22$775

Find flight deals from Ottawa to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to Houston (HO1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 24, 2026.

Round-trip from

$361
(Kiwi.com)

One-way from

$224
(Kiwi.com)

Popular in

September

Cheapest in

October

Average price

$655
From Ottawa to Houston
Search Deals
One-way flight from Ottawa to Houston
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Houston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 24, 2026.
Use the filters below to find and compare flights from Ottawa to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 7/3

7:00 am-7:52 pm

2 stops13h 52m

Houston George Bush Intcntl

Thu 7/9

4:21 pm-2:35 pm

2 stops21h 14m

$578

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 7/3

4:00 pm-10:06 pm

1 stop7h 06m

Houston George Bush Intcntl

Thu 7/9

6:45 am-3:10 pm

1 stop7h 25m

$602

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 7/9

2:35 pm-7:38 pm

1 stop6h 03m

Houston George Bush Intcntl

Mon 7/13

6:45 am-3:10 pm

1 stop7h 25m

$618
Quickest round-trip

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 7/8

5:10 am-10:50 am

1 stop6h 40m

Houston George Bush Intcntl

Tue 7/14

11:45 am-7:10 pm

1 stop6h 25m

$634

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 7/27

1:20 pm-10:40 pm

1 stop10h 20m

Houston George Bush Intcntl

Mon 8/3

6:30 am-7:20 pm

1 stop11h 50m

$645

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 8/22

6:15 pm-1:55 pm

2 stops44h 40m

Houston George Bush Intcntl

Fri 8/28

2:50 pm-11:35 am

2 stops19h 45m

$650

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 9/7

6:00 am-12:27 am

3 stops19h 27m

Houston George Bush Intcntl

Mon 9/21

10:00 am-5:29 pm

1 stop6h 29m

$657

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 9/7

6:00 am-12:27 am

3 stops19h 27m

Houston George Bush Intcntl

Mon 9/21

7:20 am-4:38 pm

1 stop8h 18m

$666

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 9/3

6:55 am-10:05 pm

2 stops16h 10m

Houston Hobby

Mon 9/14

2:25 pm-12:20 am

2 stops8h 55m

$694

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 7/30

6:55 am-9:51 pm

2 stops15h 56m

Houston Hobby

Tue 8/4

5:20 pm-12:20 am

2 stops30h 00m

$769

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 33 resultsSorted by cheapest first
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Best time to book a flight from Ottawa to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Ottawa with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Ottawa to Houston?

Currently, December is the cheapest month in which you can book a flight from Ottawa to Houston (average of $221). Flying from Ottawa to Houston in January is currently the most expensive (average of $566). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Ottawa to Houston?

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated June 24, 2026.
See what other customers who have flown with United Airlines and Air Canada from Ottawa to Houston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,881 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours
United Airlines
7.4
Good
9,881 reviews
United Airlines
7.4
Good
9,881 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours
Air Canada
7.1
Good
11,251 reviews
United Airlines
7.4
Good
9,881 reviews

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

FERNANDO,Sep 2024

YYC - IAH

Everything was good, maybe can give better foof flys more than 4 hours

Related info for your journey

Find useful and relevant information for your journey from Ottawa to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ottawa to Houston?

    Most people fly from Ottawa (YOW) if they book a flight from Ottawa to Houston. On average, Ottawa has 0 outbound flights to Houston per day from 2 airlines. Ottawa is conveniently located just 6.6 mi from Ottawa’s city center.

  • How long is the flight from Ottawa to Houston?

    A quick flight from Ottawa to Houston can take about 7h 06m. Air Canada provides one of the quickest options available for as low as $602. Airlines will cover a distance of 1501 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Ottawa to Houston round-trip?

    Currently priced at $290, Air Canada will fly you from Ottawa to Houston and back. In addition to Air Canada, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $354. Users have found that Air Canada is 57% cheaper than the other options available to this destination.

  • Can I find deals for flights from Ottawa to Houston that include hotel bookings?

    Yes. In addition to deals on Ottawa to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to Houston.

  • Can I find deals for business class flights from Ottawa to Houston?

    Yes. Cheapflights offers flight deals from Ottawa to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ottawa to Houston?

    Currently, December is the cheapest month in which you can book a flight from Ottawa to Houston (average of $221). Flying from Ottawa to Houston in January is currently the most expensive (average of $566). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Ottawa to Houston

Discover the top 2 airlines that operate flights from Ottawa to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$290Average$675FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$354Average$708FlexibilityNo cancel feeOn-time69%

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