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Cheap flights from Ottawa to Houston George Bush Intcntl Airport from C$ 275

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — IAH
27 May — 3 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to George Bush Intcntl

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to George Bush Intcntl
Explore the most affordable flight options available from Ottawa to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 April 2026.

Tue 2/67:00 a.m.
YOW
-
IAH
2 stops26h 55m
Multiple Airlines
Mon 8/65:29 p.m.
IAH
-
YOW
1 stop23h 08m
Multiple Airlines
Deal found 26/4C$ 503
Mon 18/54:20 p.m.
YOW
-
IAH
1 stop30h 56m
Multiple Airlines
Mon 15/67:24 p.m.
IAH
-
YOW
2 stops23h 41m
Multiple Airlines
Deal found 25/4C$ 526
Wed 3/67:00 a.m.
YOW
-
IAH
2 stops25h 33m
Multiple Airlines
Mon 8/65:29 p.m.
IAH
-
YOW
1 stop23h 08m
Multiple Airlines
Deal found 26/4C$ 543
Tue 26/57:00 a.m.
YOW
-
IAH
2 stops16h 16m
Multiple Airlines
Tue 2/65:29 p.m.
IAH
-
YOW
1 stop23h 08m
Multiple Airlines
Deal found 26/4C$ 547
Wed 13/56:55 a.m.
YOW
-
IAH
2 stops26h 55m
Multiple Airlines
Wed 20/56:50 a.m.
IAH
-
YOW
1 stop9h 45m
Multiple Airlines
Deal found 23/4C$ 552
Fri 5/67:00 a.m.
YOW
-
IAH
2 stops26h 50m
Multiple Airlines
Sat 13/65:45 a.m.
IAH
-
YOW
1 stop8h 15m
Multiple Airlines
Deal found 27/4C$ 553
Sat 30/57:00 a.m.
YOW
-
IAH
1 stop26h 50m
Multiple Airlines
Sun 14/66:50 a.m.
IAH
-
YOW
1 stop28h 27m
Multiple Airlines
Deal found 26/4C$ 573
Sun 17/57:00 a.m.
YOW
-
IAH
1 stop17h 36m
Multiple Airlines
Thu 28/511:49 a.m.
IAH
-
YOW
1 stop25h 44m
Multiple Airlines
Deal found 23/4C$ 585

Find flight deals from Ottawa to George Bush Intcntl

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to George Bush Intcntl (IAH). 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 27 April 2026.

Round-trip from

C$ 503

One-way from

C$ 275

Popular in

December

Cheapest in

October

Average price

C$ 849
2/6-8/6
  • 2/6-8/6
  • 3 total stops
  • 50h 03m total
  • Ottawa to Houston
Search Deals
9/5
  • 9/5
  • 1 total stop
  • 12h 48m total
  • Ottawa to Houston
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to George Bush Intcntl 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 629,999 searches. Data last updated 27 April 2026.
Use the filters below to find and compare flights from Ottawa to Houston George Bush Intcntl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 13/5

6:55 a.m.-7:33 a.m.

2 stops25h 38m

Houston George Bush Intcntl

Wed 20/5

11:49 a.m.-12:54 p.m.

3 stops24h 05m

C$ 648

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 22/6

3:30 p.m.-9:44 a.m.

2 stops19h 14m

Houston George Bush Intcntl

Wed 24/6

5:45 a.m.-12:20 a.m.

2 stops17h 35m

C$ 648

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 8/7

8:15 p.m.-10:40 p.m.

1 stop27h 25m

Houston George Bush Intcntl

Tue 14/7

2:50 p.m.-5:35 a.m.

1 stop13h 45m

C$ 667

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 7/5

2:20 p.m.-3:14 p.m.

1 stop25h 54m

Houston George Bush Intcntl

Thu 14/5

11:49 a.m.-12:15 p.m.

2 stops23h 26m

C$ 676
Quickest round-trip

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 9/10

6:00 p.m.-11:33 p.m.

1 stop6h 33m

Houston George Bush Intcntl

Sun 11/10

6:45 a.m.-5:21 p.m.

1 stop9h 36m

C$ 769

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 8/7

6:00 a.m.-5:10 p.m.

2 stops12h 10m

Houston George Bush Intcntl

Tue 14/7

1:41 p.m.-11:54 p.m.

2 stops9h 13m

C$ 804

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Tue 21/7

6:00 a.m.-3:40 p.m.

2 stops10h 40m

Houston George Bush Intcntl

Mon 27/7

5:04 a.m.-2:17 p.m.

2 stops8h 13m

C$ 806

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sun 19/7

6:00 a.m.-9:59 p.m.

1 stop16h 59m

Houston George Bush Intcntl

Sun 26/7

5:04 a.m.-5:07 p.m.

1 stop11h 03m

C$ 806
Cheapest one-way

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 11/5

4:20 p.m.-10:16 p.m.

1 stop30h 56m

C$ 275
Quickest one-way

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 9/5

7:00 a.m.-10:16 p.m.

1 stop16h 16m

C$ 277

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/4

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Best time to book a flight from Ottawa to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl 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 George Bush Intcntl Airport

What is the cheapest month to book a flight from Ottawa to Houston George Bush Intcntl Airport?

Currently, October is the cheapest month in which you can book a flight from Ottawa to Houston George Bush Intcntl Airport (average of C$ 699). Flying from Ottawa to Houston George Bush Intcntl Airport in December is currently the most expensive (average of C$ 1,002). 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 George Bush Intcntl Airport?

Reviews of airlines servicing George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated 27 April 2026.
Read reviews from past customers who have flown United Airlines and Air Canada from Ottawa to Houston George Bush Intcntl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,665 reviews
Check prices

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

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
9,665 reviews
United Airlines
7.4
Good
9,665 reviews
Check prices

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

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
10,974 reviews
United Airlines
7.4
Good
9,665 reviews
Check prices

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

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 George Bush Intcntl. 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 George Bush Intcntl?

    Most people fly from Ottawa (YOW) if they book a flight from Ottawa to Houston George Bush Intcntl. On average, Ottawa has 0 outbound flights to Houston George Bush Intcntl per day from 2 airlines. Ottawa is conveniently located just 10.6 km from Ottawa’s city centre.

  • How long is the flight from Ottawa to Houston George Bush Intcntl Airport?

    Departing from Ottawa to Houston George Bush Intcntl Airport will take you 27h 25m. There are 2416 km between Ottawa and Houston George Bush Intcntl Airport.

  • What are the cheapest airlines flying from Ottawa to Houston George Bush Intcntl Airport round-trip?

    According to our current data, United Airlines (C$ 635), and Air Canada (C$ 692) offers the cheapest pricing from Ottawa to Houston George Bush Intcntl Airport. United Airlines is 25% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Ottawa to George Bush Intcntl that include hotel bookings?

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

  • How can I find direct flights from Ottawa to George Bush Intcntl?

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

  • Can I find deals for business class flights from Ottawa to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Ottawa to George Bush Intcntl 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 George Bush Intcntl Airport?

    Currently, October is the cheapest month in which you can book a flight from Ottawa to Houston George Bush Intcntl Airport (average of C$ 699). Flying from Ottawa to Houston George Bush Intcntl Airport in December is currently the most expensive (average of C$ 1,002). 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

Travelling to a place near Houston George Bush Intcntl Airport?

Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locations
Cypress

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Top 2 airlines flying from Ottawa to George Bush Intcntl

Discover the top 2 airlines that operate flights from Ottawa to George Bush Intcntl. 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 629,999 searches. Data last updated 27 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 635AverageC$ 858FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 692AverageC$ 793FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ottawa to George Bush Intcntl?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ottawa to George Bush Intcntl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ottawa to George Bush Intcntl?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to George Bush Intcntl from Ottawa.

Can Cheapflights find flights from Ottawa to George Bush Intcntl with no change fees?

Certainly. Search results for flights to George Bush Intcntl from Ottawa shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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