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Cheap flights from Ottawa to Houston from $172

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ottawa to Houston departing on 10/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Multiple Airlines Logo
3:50 pm - 12:28 amYOW-IAH
9h 38m1 stop
Multiple Airlines Logo
6:00 am - 5:25 pmIAH-YOW
10h 25m1 stop
$283Multiple Airlines
Find Deal
Sat, Oct 25 - Mon, Oct 27
Multiple Airlines Logo
9:30 am - 9:33 amYOW-IAH
25h 03m1 stop
Multiple Airlines Logo
1:35 pm - 12:40 amIAH-YOW
10h 05m1 stop
$296Multiple Airlines
Find Deal
Fri, Oct 31 - Mon, Nov 3
WestJet Logo
6:00 am - 5:29 pmYOW-IAH
12h 29m1 stop
WestJet Logo
6:20 pm - 4:53 pmIAH-YOW
21h 33m1 stop
$301WestJet
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Thu, Nov 27 - Tue, Dec 2
Multiple Airlines Logo
9:30 am - 9:33 amYOW-IAH
25h 03m1 stop
Multiple Airlines Logo
6:20 pm - 4:53 pmIAH-YOW
21h 33m1 stop
$312Multiple Airlines
Find Deal
Mon, Oct 27 - Thu, Nov 27
Multiple Airlines Logo
9:30 am - 9:33 amYOW-IAH
25h 03m1 stop
Multiple Airlines Logo
6:00 am - 6:26 pmIAH-YOW
11h 26m2 stops
$318Multiple Airlines
Find Deal
Fri, Oct 31 - Mon, Nov 3
Multiple Airlines Logo
3:50 pm - 12:28 amYOW-IAH
9h 38m1 stop
Multiple Airlines Logo
8:24 pm - 5:25 pmIAH-YOW
20h 01m2 stops
$329Multiple Airlines
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Sat, Oct 25 - Mon, Oct 27
Multiple Airlines Logo
4:25 pm - 8:33 amYOW-IAH
17h 08m1 stop
Multiple Airlines Logo
3:00 pm - 1:00 pmIAH-YOW
21h 00m1 stop
$330Multiple Airlines
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Wed, Oct 8 - Sat, Oct 11
WestJet Logo
6:00 am - 5:30 pmYOW-IAH
12h 30m1 stop
WestJet Logo
6:20 pm - 12:40 amIAH-YOW
29h 20m1 stop
$383WestJet
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Sun, Feb 22 - Fri, Feb 27
United Airlines Logo
9:45 am - 8:40 pmYOW-IAH
11h 55m2 stops
United Airlines Logo
6:05 pm - 1:34 pmIAH-YOW
18h 29m2 stops
$421United Airlines
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Tue, Feb 24 - Wed, Feb 25
WestJet Logo
6:00 am - 10:43 pmYOW-IAH
17h 43m1 stop
WestJet Logo
3:00 pm - 11:32 amIAH-YOW
19h 32m2 stops
$447WestJet
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Thu, Oct 9 - Sun, Oct 12

WestJet flights from Ottawa to Houston George Bush Intcntl Airport

Our best WestJet deals on Ottawa to Houston George Bush Intcntl Airport flight tickets
WestJet
Nov 27
YOW6:00 amOttawa
12h 29m
1 stop
IAH5:29 pmHouston George Bush Intcntl
Dec 2
IAH6:20 pmHouston George Bush Intcntl
21h 33m
1 stop
YOW4:53 pmOttawa
$301
Find similar
WestJet
Feb 22
YOW6:00 amOttawa
12h 30m
1 stop
IAH5:30 pmHouston George Bush Intcntl
Feb 27
IAH6:20 pmHouston George Bush Intcntl
29h 20m
1 stop
YOW12:40 amOttawa
$383
Find similar
WestJet
Oct 9
YOW6:00 amOttawa
17h 43m
1 stop
IAH10:43 pmHouston George Bush Intcntl
Oct 12
IAH3:00 pmHouston George Bush Intcntl
19h 32m
2 stops
YOW11:32 amOttawa
$447
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United Airlines flights from Ottawa to Houston George Bush Intcntl Airport

Our best United Airlines deals on Ottawa to Houston George Bush Intcntl Airport flight tickets
United Airlines
Feb 24
YOW9:45 amOttawa
11h 55m
2 stops
IAH8:40 pmHouston George Bush Intcntl
Feb 25
IAH6:05 pmHouston George Bush Intcntl
18h 29m
2 stops
YOW1:34 pmOttawa
$421
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United Airlines
Sep 26
YOW3:55 pmOttawa
17h 23m
2 stops
IAH8:18 amHouston George Bush Intcntl
Oct 15
IAH6:05 pmHouston George Bush Intcntl
16h 40m
2 stops
YOW11:45 amOttawa
$719
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United Airlines
Sep 26
YOW11:55 amOttawa
12h 35m
2 stops
IAH11:30 pmHouston George Bush Intcntl
Sep 28
IAH6:30 pmHouston George Bush Intcntl
18h 43m
2 stops
YOW2:13 pmOttawa
$772
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momondo Fare Finder

 
Customize your flight search to find flights from Ottawa to Houston George Bush Intcntl Airport 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
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

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 10/25

3:50 pm-12:28 am

1 stop9h 38m

Houston George Bush Intcntl

Mon 10/27

6:00 am-5:25 pm

1 stop10h 25m

$283

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 10/31

9:30 am-9:33 am

1 stop25h 03m

Houston George Bush Intcntl

Mon 11/3

1:35 pm-12:40 am

1 stop10h 05m

$296

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 11/27

6:00 am-5:29 pm

1 stop12h 29m

Houston George Bush Intcntl

Tue 12/2

6:20 pm-4:53 pm

1 stop21h 33m

$301

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Mon 10/27

9:30 am-9:33 am

1 stop25h 03m

Houston George Bush Intcntl

Thu 11/27

6:20 pm-4:53 pm

1 stop21h 33m

$312

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Fri 10/31

9:30 am-9:33 am

1 stop25h 03m

Houston George Bush Intcntl

Mon 11/3

6:00 am-6:26 pm

2 stops11h 26m

$318

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sat 10/25

3:50 pm-12:28 am

1 stop9h 38m

Houston George Bush Intcntl

Mon 10/27

8:24 pm-5:25 pm

2 stops20h 01m

$329

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Wed 10/8

4:25 pm-8:33 am

1 stop17h 08m

Houston George Bush Intcntl

Sat 10/11

3:00 pm-1:00 pm

1 stop21h 00m

$330

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Sun 2/22

6:00 am-5:30 pm

1 stop12h 30m

Houston George Bush Intcntl

Fri 2/27

6:20 pm-12:40 am

1 stop29h 20m

$383

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Tue 2/24

9:45 am-8:40 pm

2 stops11h 55m

Houston George Bush Intcntl

Wed 2/25

6:05 pm-1:34 pm

2 stops18h 29m

$421

OttawaHouston

YOW - IAH

YOWIAH

Ottawa

Thu 10/9

6:00 am-10:43 pm

1 stop17h 43m

Houston George Bush Intcntl

Sun 10/12

3:00 pm-11:32 am

2 stops19h 32m

$447

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Houston from

How to get the cheapest flight ticket from Ottawa to Houston George Bush Intcntl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Ottawa and Houston George Bush Intcntl Airport?

What is the cheapest month to fly to Houston George Bush Intcntl Airport?

The month of October is, on average, the cheapest month to fly to Houston George Bush Intcntl Airport from Ottawa, with most prices found around $589. If you are unable to visit Houston George Bush Intcntl Airport during the month of October, then departing from Ottawa during the month May is also very affordable. Most momondo users find prices during this month for around $612.

What is the cheapest day to depart on your flight to Houston George Bush Intcntl Airport?

The cheapest day to depart from Ottawa to Houston George Bush Intcntl Airport is on a Thursday. Travelers who choose to depart for Houston George Bush Intcntl Airport on a Thursday will often find tickets for as low as $640. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Houston George Bush Intcntl Airport on Monday is $967.

What is the cheapest time of day to depart on your flight to Houston George Bush Intcntl Airport?

Our data shows that the cheapest Ottawa to Houston George Bush Intcntl Airport flights are usually those with departure times in the evening. Our users have found flights to Houston George Bush Intcntl Airport in the evening for as low as $629. Try not to purchase tickets in the morning because they tend to be around $793. Of course, these prices can vary depending on the time of year and what airport you fly to.

How have Ottawa to Houston George Bush Intcntl Airport flight prices changed over time?

As of September 2025, prices for Ottawa to Houston George Bush Intcntl Airport flights are approximately 20% cheaper when compared to flights at the same time last year.

When to book flights from Ottawa to Houston George Bush Intcntl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ottawa to Houston George Bush Intcntl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ottawa to Houston George Bush Intcntl Airport (YOW to IAH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ottawa to Houston George Bush Intcntl Airport

Direct flights

None
There are no direct flights from Ottawa to Houston George Bush Intcntl Airport. There are no popular flight routes from Ottawa to Houston George Bush Intcntl Airport.
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  • How far is Ottawa to Houston George Bush Intcntl by plane?

    A flight from Ottawa to Houston George Bush Intcntl will travel around 1504.3 mi. Flights usually cover this in 7h 29m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ottawa Airport to Houston George Bush Intcntl Airport?

    Prices for flights from Ottawa Airport to Houston George Bush Intcntl Airport are updated daily.

  • How old do you have to be to fly from Ottawa Airport to Houston George Bush Intcntl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ottawa Airport to Houston George Bush Intcntl Airport.

  • What documentation or ID do you need to fly to Houston George Bush Intcntl Airport?

    The travel and health documents required for your trip to Houston George Bush Intcntl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Houston George Bush Intcntl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Houston?

Book flights to Houston if you plan to visit one of these locations
The Woodlands
Katy
Conroe
Humble
Cypress
Spring
Montgomery
Tomball
Livingston
Jersey Village

Why use momondo?

Why should I use momondo to find a flight deal from Ottawa to Houston?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ottawa to Houston for you.

Can I find flights from Ottawa to Houston with flexible booking policies on momondo?

Yes. All flights to Houston from Ottawa on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ottawa to Houston?

momondo helps you find the best flight between Ottawa and Houston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ottawa to Houston right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Houston from Ottawa. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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