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Cheap flights from Houston to Ottawa from $143

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 8/16. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Houston to Ottawa

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:02 pm - 2:35 pm
IAH
-
YOW
17h 33m
2 stops
Multiple Airlines Logo
7:00 am - 2:50 pm
YOW
-
IAH
8h 50m
1 stop
$463Multiple Airlines
Thu, Jul 23 - Mon, Jul 27
Multiple Airlines Logo
7:23 pm - 5:35 pm
IAH
-
YOW
45h 12m
2 stops
Multiple Airlines Logo
7:00 am - 2:50 pm
YOW
-
IAH
8h 50m
1 stop
$499Multiple Airlines
Sat, Jul 25 - Sat, Aug 1
Multiple Airlines Logo
7:23 pm - 2:35 pm
IAH
-
YOW
18h 12m
1 stop
Multiple Airlines Logo
7:00 am - 2:50 pm
YOW
-
IAH
8h 50m
1 stop
$521Multiple Airlines
Thu, Jul 23 - Mon, Jul 27
Multiple Airlines Logo
10:53 am - 12:25 pm
IAH
-
YOW
24h 32m
2 stops
Multiple Airlines Logo
7:00 am - 8:45 am
YOW
-
IAH
26h 45m
1 stop
$524Multiple Airlines
Wed, Jul 15 - Fri, Jul 17
Multiple Airlines Logo
2:50 pm - 5:35 am
IAH
-
YOW
13h 45m
1 stop
Multiple Airlines Logo
7:00 am - 3:05 pm
YOW
-
IAH
33h 05m
2 stops
$547Multiple Airlines
Sat, Aug 8 - Wed, Aug 12
WestJet Logo
6:30 am - 12:40 am
IAH
-
YOW
17h 10m
1 stop
WestJet Logo
12:25 pm - 10:40 pm
YOW
-
IAH
11h 15m
2 stops
$551WestJet
Sun, Aug 23 - Thu, Sep 3
WestJet Logo
6:30 am - 12:40 am
IAH
-
YOW
17h 10m
1 stop
WestJet Logo
1:20 pm - 10:40 pm
YOW
-
IAH
10h 20m
1 stop
$553WestJet
Sun, Aug 23 - Thu, Sep 3
American Airlines Logo
6:03 am - 9:20 pm
HOU
-
YOW
14h 17m
2 stops
American Airlines Logo
7:00 am - 7:53 pm
YOW
-
HOU
13h 53m
3 stops
$1,032American Airlines
Thu, Jul 23 - Mon, Jul 27
American Airlines Logo
9:32 am - 9:20 pm
HOU
-
YOW
10h 48m
2 stops
American Airlines Logo
7:00 am - 7:51 pm
YOW
-
HOU
13h 51m
3 stops
$1,052American Airlines
Mon, Aug 10 - Mon, Aug 17
Delta Logo
6:00 am - 12:20 am
HOU
-
YOW
17h 20m
2 stops
Delta Logo
6:55 am - 9:51 pm
YOW
-
HOU
15h 56m
2 stops
$1,187Delta
Thu, Jul 23 - Mon, Jul 27

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WestJet flights from Houston to Ottawa

Our best WestJet deals on Houston to Ottawa flight tickets
WestJet
Aug 23
IAH6:30 amHouston George Bush Intcntl
17h 10m
1 stop
YOW12:40 amOttawa
Sep 3
YOW12:25 pmOttawa
11h 15m
2 stops
IAH10:40 pmHouston George Bush Intcntl
$551
WestJet
Aug 23
IAH6:30 amHouston George Bush Intcntl
17h 10m
1 stop
YOW12:40 amOttawa
Sep 3
YOW1:20 pmOttawa
10h 20m
1 stop
IAH10:40 pmHouston George Bush Intcntl
$553
WestJet
Aug 23
IAH6:30 amHouston George Bush Intcntl
22h 05m
1 stop
YOW5:35 amOttawa
Sep 3
YOW12:25 pmOttawa
11h 15m
2 stops
IAH10:40 pmHouston George Bush Intcntl
$557

American Airlines flights from Houston to Ottawa

Our best American Airlines deals on Houston to Ottawa flight tickets
American Airlines
Jul 25
IAH6:42 pmHouston George Bush Intcntl
25h 38m
2 stops
YOW9:20 pmOttawa
Aug 1
YOW7:00 amOttawa
17h 51m
2 stops
IAH11:51 pmHouston George Bush Intcntl
$780
American Airlines
Aug 8
HOU6:14 pmHouston Hobby
19h 41m
3 stops
YOW2:55 pmOttawa
Aug 12
YOW7:00 amOttawa
13h 51m
3 stops
HOU7:51 pmHouston Hobby
$920
American Airlines
Aug 8
HOU6:14 pmHouston Hobby
26h 06m
2 stops
YOW9:20 pmOttawa
Aug 12
YOW7:00 amOttawa
13h 51m
3 stops
HOU7:51 pmHouston Hobby
$1,021

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 June 28, 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

Cheapest round-trip

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 7/23

8:02 pm-2:35 pm

2 stops17h 33m

Ottawa

Mon 7/27

7:00 am-2:50 pm

1 stop8h 50m

$463

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sat 7/25

7:23 pm-5:35 pm

2 stops45h 12m

Ottawa

Sat 8/1

7:00 am-2:50 pm

1 stop8h 50m

$499

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 7/23

7:23 pm-2:35 pm

1 stop18h 12m

Ottawa

Mon 7/27

7:00 am-2:50 pm

1 stop8h 50m

$521

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Wed 7/15

10:53 am-12:25 pm

2 stops24h 32m

Ottawa

Fri 7/17

7:00 am-8:45 am

1 stop26h 45m

$524

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sat 8/8

2:50 pm-5:35 am

1 stop13h 45m

Ottawa

Wed 8/12

7:00 am-3:05 pm

2 stops33h 05m

$547

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sun 8/23

6:30 am-12:40 am

1 stop17h 10m

Ottawa

Thu 9/3

12:25 pm-10:40 pm

2 stops11h 15m

$551

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sun 8/23

6:30 am-12:40 am

1 stop17h 10m

Ottawa

Thu 9/3

1:20 pm-10:40 pm

1 stop10h 20m

$553

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Thu 7/23

6:03 am-9:20 pm

2 stops14h 17m

Ottawa

Mon 7/27

7:00 am-7:53 pm

3 stops13h 53m

$1,032
Quickest round-trip

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Mon 8/10

9:32 am-9:20 pm

2 stops10h 48m

Ottawa

Mon 8/17

7:00 am-7:51 pm

3 stops13h 51m

$1,052

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Thu 7/23

6:00 am-12:20 am

2 stops17h 20m

Ottawa

Mon 7/27

6:55 am-9:51 pm

2 stops15h 56m

$1,187

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 month to fly to Ottawa?

In general, November is the cheapest month to fly from Houston to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $156. The month of June is another great option to travel to Ottawa, with average flight prices from Houston averaging around $274.

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

5h 57m

Direct flights

None
The fastest flight from Houston to Ottawa takes 5h 57m
There are no direct flights from Houston to Ottawa. There are no popular flight routes from Houston to Ottawa.
Search flight deals

Frequently asked questions about flying from Houston to Ottawa

  • 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 5h 57m, 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
United AirlinesPriceFrom $351Free CancellationRating
7.4
9,899 reviews
Search United Airlines flights
Air CanadaPriceFrom $375Free CancellationRating
7.1
11,269 reviews
Search Air Canada flights

Traveling to a place near Ottawa?

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