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Cheap flights from Houston to Ottawa from $140

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to Ottawa departing on 2/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Houston to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:16 am - 12:25 am
IAH
-
YOW
14h 09m
1 stop
Multiple Airlines Logo
4:15 pm - 4:06 pm
YOW
-
IAH
24h 51m
1 stop
$310Multiple Airlines
Mon, Mar 16 - Wed, Mar 25
Multiple Airlines Logo
12:36 pm - 12:02 am
IAH
-
YOW
10h 26m
1 stop
Multiple Airlines Logo
7:00 am - 4:06 pm
YOW
-
IAH
10h 06m
1 stop
$313Multiple Airlines
Tue, Mar 17 - Thu, Mar 26
Multiple Airlines Logo
9:16 am - 12:25 am
IAH
-
YOW
14h 09m
1 stop
Multiple Airlines Logo
7:00 am - 4:06 pm
YOW
-
IAH
10h 06m
1 stop
$314Multiple Airlines
Mon, Mar 16 - Thu, Mar 26
Multiple Airlines Logo
12:36 pm - 12:02 am
IAH
-
YOW
10h 26m
1 stop
Multiple Airlines Logo
4:15 pm - 4:06 pm
YOW
-
IAH
24h 51m
1 stop
$315Multiple Airlines
Tue, Mar 17 - Wed, Mar 25
Multiple Airlines Logo
11:15 am - 12:02 am
IAH
-
YOW
11h 47m
1 stop
Multiple Airlines Logo
4:15 pm - 11:59 pm
YOW
-
IAH
8h 44m
1 stop
$317Multiple Airlines
Tue, Mar 17 - Sat, Mar 28
Delta Logo
6:00 am - 12:39 am
HOU
-
YOW
17h 39m
2 stops
Delta Logo
5:40 am - 1:28 pm
YOW
-
HOU
32h 48m
2 stops
$808Delta
Tue, Mar 17 - Mon, Mar 23
Delta Logo
6:00 am - 12:39 am
HOU
-
YOW
17h 39m
2 stops
Delta Logo
5:40 am - 1:28 pm
YOW
-
HOU
32h 48m
2 stops
$809Delta
Tue, Mar 17 - Mon, Mar 23
WestJet Logo
6:00 am - 12:39 am
HOU
-
YOW
17h 39m
2 stops
WestJet Logo
5:40 am - 10:42 pm
YOW
-
HOU
18h 02m
2 stops
$916WestJet
Wed, Mar 18 - Wed, Mar 25
WestJet Logo
2:13 pm - 12:39 am
HOU
-
YOW
9h 26m
2 stops
WestJet Logo
5:40 am - 4:36 pm
YOW
-
HOU
11h 56m
2 stops
$917WestJet
Wed, Mar 18 - Tue, Mar 24
American Airlines Logo
6:00 am - 4:48 pm
HOU
-
YOW
9h 48m
2 stops
American Airlines Logo
6:45 am - 7:50 pm
YOW
-
HOU
14h 05m
3 stops
$963American Airlines
Wed, Mar 18 - Wed, Mar 25

WestJet flights from Houston to Ottawa

Our best WestJet deals on Houston to Ottawa flight tickets
WestJet
Feb 19
IAH1:35 pmHouston George Bush Intcntl
10h 05m
1 stop
YOW12:40 amOttawa
Feb 23
YOW5:45 pmOttawa
24h 45m
1 stop
IAH5:30 pmHouston George Bush Intcntl
$731
WestJet
Feb 19
IAH1:35 pmHouston George Bush Intcntl
10h 05m
1 stop
YOW12:40 amOttawa
Feb 23
YOW5:45 pmOttawa
24h 45m
1 stop
IAH5:30 pmHouston George Bush Intcntl
$761
WestJet
Mar 18
HOU6:00 amHouston Hobby
17h 39m
2 stops
YOW12:39 amOttawa
Mar 25
YOW5:40 amOttawa
18h 02m
2 stops
HOU10:42 pmHouston Hobby
$916

United Airlines flights from Houston to Ottawa

Our best United Airlines deals on Houston to Ottawa flight tickets
United Airlines
Feb 19
IAH8:09 pmHouston George Bush Intcntl
16h 25m
2 stops
YOW1:34 pmOttawa
Feb 23
YOW2:15 pmOttawa
19h 34m
2 stops
IAH8:49 amHouston George Bush Intcntl
$686
United Airlines
Feb 19
IAH8:09 pmHouston George Bush Intcntl
16h 25m
2 stops
YOW1:34 pmOttawa
Feb 23
YOW2:15 pmOttawa
19h 34m
2 stops
IAH8:49 amHouston George Bush Intcntl
$763
United Airlines
Feb 19
IAH8:09 pmHouston George Bush Intcntl
16h 25m
2 stops
YOW1:34 pmOttawa
Feb 23
YOW5:11 pmOttawa
7h 01m
1 stop
IAH11:12 pmHouston George Bush Intcntl
$798

momondo Fare Finder

 
Customize your flight search to find flights from Houston to Ottawa 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 February 7, 2026.
Use the filters below to find and compare flights from Houston to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Mon 3/16

9:16 am-12:25 am

1 stop14h 09m

Ottawa

Wed 3/25

4:15 pm-4:06 pm

1 stop24h 51m

$310

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Tue 3/17

12:36 pm-12:02 am

1 stop10h 26m

Ottawa

Thu 3/26

7:00 am-4:06 pm

1 stop10h 06m

$313

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Mon 3/16

9:16 am-12:25 am

1 stop14h 09m

Ottawa

Thu 3/26

7:00 am-4:06 pm

1 stop10h 06m

$314

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Tue 3/17

12:36 pm-12:02 am

1 stop10h 26m

Ottawa

Wed 3/25

4:15 pm-4:06 pm

1 stop24h 51m

$315

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Tue 3/17

11:15 am-12:02 am

1 stop11h 47m

Ottawa

Sat 3/28

4:15 pm-11:59 pm

1 stop8h 44m

$317

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Tue 3/17

6:00 am-12:39 am

2 stops17h 39m

Ottawa

Mon 3/23

5:40 am-1:28 pm

2 stops32h 48m

$808

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Tue 3/17

6:00 am-12:39 am

2 stops17h 39m

Ottawa

Mon 3/23

5:40 am-1:28 pm

2 stops32h 48m

$809

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Wed 3/18

6:00 am-12:39 am

2 stops17h 39m

Ottawa

Wed 3/25

5:40 am-10:42 pm

2 stops18h 02m

$916

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Wed 3/18

2:13 pm-12:39 am

2 stops9h 26m

Ottawa

Tue 3/24

5:40 am-4:36 pm

2 stops11h 56m

$917

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Wed 3/18

6:00 am-4:48 pm

2 stops9h 48m

Ottawa

Wed 3/25

6:45 am-7:50 pm

3 stops14h 05m

$963

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 Ottawa from

How to get the cheapest flight ticket from Houston to Ottawa

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 cheapest airline that flies from Houston to Ottawa?

Delta and American Airlines are the most popular carriers operating from Houston to Ottawa

Cheap Houston to Ottawa flight deals and tips

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

Fastest flight time

7h 49m

Direct flights

None
The fastest flight from Houston to Ottawa takes 7h 49m
There are no direct flights from Houston to Ottawa. There are no popular flight routes from Houston to Ottawa.
Search flight deals

  • How far is Houston to Ottawa by plane?

    The straight-line distance from Houston to Ottawa is 1517.5 mi. Flights usually cover this in 7h 49m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Houston to Ottawa Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Houston to Ottawa Airport?

  • How old do you have to be to fly from Houston to Ottawa 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 Houston to Ottawa Airport.

  • What documentation or ID do you need to fly to Ottawa Airport?

    The travel and health documents you'll need for your trip to Ottawa Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ottawa Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Houston to Ottawa

Compare and see reviews for airlines that fly from Houston to Ottawa with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $325Free CancellationRating
7.1
10,697 reviews
Search Air Canada flights
United AirlinesPriceFrom $380Free CancellationRating
7.4
9,245 reviews
Search United Airlines flights

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Pembroke
Calabogie
Brockville
Petawawa
Smiths Falls
Perth
Prescott
Winchester
Wakefield

Why use momondo?

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

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 Houston to Ottawa for you.

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

momondo does allow users to show only those flights to Ottawa from Houston which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ottawa from Houston.

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

Yes momondo offers price alerts on flights to Ottawa from Houston. 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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