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$169+ 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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — HOU
May 11 — May 181
Mon 5/11
Mon 5/18
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 April 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Fri 4/247:00 am
YOW
-
IAH
1 stop8h 46m
Multiple Airlines
Thu 4/309:46 am
IAH
-
YOW
1 stop13h 39m
Multiple Airlines
Deal found 4/8$303
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 4/254:20 pm
YOW
-
IAH
2 stops40h 39m
Multiple Airlines
Wed 4/293:31 pm
IAH
-
YOW
1 stop24h 54m
Multiple Airlines
Deal found 4/8$351
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Wed 4/297:00 am
YOW
-
IAH
2 stops16h 50m
Multiple Airlines
Sat 5/95:29 pm
IAH
-
YOW
1 stop17h 46m
Multiple Airlines
Deal found 4/8$353
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 5/211:00 am
YOW
-
IAH
2 stops11h 50m
Multiple Airlines
Sat 5/95:29 pm
IAH
-
YOW
1 stop17h 46m
Multiple Airlines
Deal found 4/8$358
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Fri 4/247:00 am
YOW
-
IAH
1 stop8h 46m
Multiple Airlines
Mon 5/2511:49 am
IAH
-
YOW
2 stops11h 31m
Multiple Airlines
Deal found 4/8$386
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Fri 5/297:00 am
YOW
-
IAH
1 stop12h 49m
Multiple Airlines
Mon 6/19:17 pm
IAH
-
YOW
2 stops19h 23m
Multiple Airlines
Deal found 4/8$397
This FlightHub deal was found by Cheapflights users on 4/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:55 am
YOW
-
HOU
2 stops10h 33m
WestJet
Sat 5/910:27 am
HOU
-
YOW
2 stops12h 53m
WestJet
Deal found 4/8$648
This Justfly.com deal was found by Cheapflights users on 4/8. 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.
Thu 5/286:55 am
YOW
-
HOU
2 stops10h 14m
WestJet
Sun 5/311:06 pm
HOU
-
YOW
2 stops10h 14m
WestJet
Deal found 4/8$652
This FlightHub deal was found by Cheapflights users on 4/7. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:55 am
YOW
-
HOU
2 stops10h 33m
WestJet
Fri 5/86:00 am
HOU
-
YOW
2 stops10h 35m
WestJet
Deal found 4/7$680
This FlightHub deal was found by Cheapflights users on 4/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:25 pm
YOW
-
HOU
2 stops22h 44m
WestJet
Mon 6/16:00 am
HOU
-
YOW
2 stops17h 20m
WestJet
Deal found 4/8$688
This Justfly.com deal was found by Cheapflights users on 4/7. 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.
Tue 6/26:55 am
YOW
-
HOU
2 stops10h 14m
WestJet
Sun 6/76:00 am
HOU
-
YOW
2 stops10h 35m
WestJet
Deal found 4/7$755
This FlightHub deal was found by Cheapflights users on 4/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/176:55 am
YOW
-
HOU
2 stops15h 58m
WestJet
Fri 6/1910:09 am
HOU
-
YOW
2 stops13h 11m
WestJet
Deal found 4/8$762

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 April 11, 2026.

Round-trip from

$303
(Kiwi.com)

One-way from

$169
(Trip.com)

Popular in

September

Cheapest in

December

Average price

$623
From Ottawa to Houston
Search Deals
One-way flight from Ottawa to Houston
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($86 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 11, 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 7/10

1:20 pm-10:40 pm

1 stop10h 20m

Houston George Bush Intcntl

Sun 7/12

6:30 am-5:35 am

1 stop22h 05m

$471

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Tue 6/2

7:00 am-11:36 pm

3 stops17h 36m

Houston George Bush Intcntl

Sun 6/7

8:33 pm-5:35 am

3 stops32h 02m

$487

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 5/29

7:00 am-11:36 pm

2 stops17h 36m

Houston George Bush Intcntl

Mon 6/1

2:20 pm-5:40 pm

3 stops26h 20m

$520

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Tue 6/16

9:05 am-3:14 pm

1 stop7h 09m

Houston George Bush Intcntl

Thu 6/18

7:00 am-5:40 pm

1 stop9h 40m

$558

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 5/2

6:55 am-11:59 pm

2 stops18h 04m

Houston George Bush Intcntl

Wed 5/6

8:05 am-12:20 am

2 stops15h 15m

$601

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sun 5/10

6:25 am-1:37 pm

1 stop8h 12m

Houston George Bush Intcntl

Sun 5/17

6:15 am-1:59 pm

1 stop6h 44m

$604

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sun 5/24

10:00 am-5:11 pm

1 stop8h 11m

Houston George Bush Intcntl

Wed 5/27

5:04 am-1:59 pm

1 stop7h 55m

$605
Quickest round-trip

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sun 5/24

2:40 pm-7:59 pm

1 stop6h 19m

Houston George Bush Intcntl

Wed 5/27

7:20 am-3:11 pm

1 stop6h 51m

$610

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 7/31

6:25 am-1:30 pm

1 stop8h 05m

Houston George Bush Intcntl

Tue 8/4

6:10 am-6:48 pm

2 stops11h 38m

$616

OttawaHouston

YOW - HOU

YOWHOU

Ottawa

Thu 5/28

6:55 am-4:09 pm

2 stops10h 14m

Houston Hobby

Sun 5/31

1:06 pm-12:20 am

2 stops10h 14m

$652

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

Showing 1-10 of 38 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, July is the cheapest month in which you can book a flight from Ottawa to Houston (average of $264). Flying from Ottawa to Houston in June is currently the most expensive (average of $495). 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 April 11, 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
9,569 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

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
9,569 reviews
United Airlines
7.4
Good
9,569 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

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
10,916 reviews
United Airlines
7.4
Good
9,569 reviews

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

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 10h 14m. WestJet provides one of the quickest options available for as low as $652. Airlines will cover a distance of 1517 mi.

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

    Currently priced at $354, United Airlines will fly you from Ottawa to Houston and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Air Canada for as low as $404. Users have found that United Airlines is 45% 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, July is the cheapest month in which you can book a flight from Ottawa to Houston (average of $264). Flying from Ottawa to Houston in June is currently the most expensive (average of $495). 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 April 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$404Average$635FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$602Average$680FlexibilityNo cancel feeOn-time69%

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