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Cheap flights from Houston to Ottawa from C$ 322

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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — YOW
31 Aug — 7 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Houston to Ottawa

Enter your travel dates to find the best prices.

Cheapest flights from Houston to Ottawa
Explore the most affordable flight options available from Houston to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2026.

Mon 5/108:25 p.m.
IAH
-
YOW
2 stops22h 35m
Multiple Airlines
Mon 12/104:15 p.m.
YOW
-
IAH
1 stop29h 49m
Multiple Airlines
Deal found 29/7C$ 537
Sun 4/108:25 a.m.
IAH
-
YOW
1 stop29h 50m
Multiple Airlines
Mon 12/104:15 p.m.
YOW
-
IAH
1 stop29h 49m
Multiple Airlines
Deal found 29/7C$ 539
Sun 4/108:25 a.m.
IAH
-
YOW
1 stop29h 50m
Multiple Airlines
Tue 13/107:00 a.m.
YOW
-
IAH
2 stops15h 04m
Multiple Airlines
Deal found 29/7C$ 551
Fri 16/106:30 a.m.
IAH
-
YOW
1 stop9h 45m
Multiple Airlines
Mon 19/104:15 p.m.
YOW
-
IAH
1 stop29h 49m
Multiple Airlines
Deal found 30/7C$ 565
Tue 6/102:50 p.m.
IAH
-
YOW
1 stop13h 45m
Multiple Airlines
Mon 12/104:15 p.m.
YOW
-
IAH
1 stop29h 49m
Multiple Airlines
Deal found 29/7C$ 579
Thu 10/98:25 p.m.
IAH
-
YOW
1 stop17h 08m
Multiple Airlines
Thu 17/97:00 a.m.
YOW
-
IAH
2 stops15h 14m
Multiple Airlines
Deal found 31/7C$ 581
Mon 28/98:25 p.m.
IAH
-
YOW
2 stops22h 35m
Multiple Airlines
Fri 2/108:15 p.m.
YOW
-
IAH
1 stop18h 40m
Multiple Airlines
Deal found 28/7C$ 583
Mon 28/92:50 p.m.
IAH
-
YOW
1 stop13h 45m
WestJet
Fri 2/108:15 p.m.
YOW
-
IAH
1 stop18h 40m
WestJet
Deal found 28/7C$ 586
Mon 5/106:30 a.m.
IAH
-
YOW
1 stop22h 05m
Multiple Airlines
Tue 13/107:00 a.m.
YOW
-
IAH
2 stops15h 04m
Multiple Airlines
Deal found 29/7C$ 588
Tue 29/94:21 p.m.
IAH
-
YOW
2 stops26h 39m
Multiple Airlines
Sat 3/107:00 a.m.
YOW
-
IAH
1 stop15h 14m
Multiple Airlines
Deal found 30/7C$ 590
Sat 29/86:14 p.m.
HOU
-
YOW
2 stops26h 06m
American Airlines
Sat 5/97:00 a.m.
YOW
-
HOU
3 stops13h 51m
American Airlines
Deal found 1/8C$ 1,222
Wed 26/85:41 a.m.
HOU
-
YOW
2 stops14h 19m
American Airlines
Wed 2/98:40 a.m.
YOW
-
HOU
3 stops12h 11m
American Airlines
Deal found 28/7C$ 1,262

Find flight deals from Houston to Ottawa

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to Ottawa (YOW). 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 1 August 2026.

Round-trip from

C$ 524

One-way from

C$ 322

Popular in

October

Cheapest in

December

Average price

C$ 737
30/8-14/9
  • 30/8-14/9
  • 3 total stops
  • 61h 54m total
  • Houston to Ottawa
Search Deals
29/8
  • 29/8
  • 3 total stops
  • 48h 03m total
  • Houston to Ottawa
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 125 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 101 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights 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, Cheapflights users made 629,999 searches. Data last updated 1 August 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

Mon 9/11

4:39 p.m.-4:44 p.m.

1 stop23h 05m

Ottawa

Mon 16/11

8:00 a.m.-8:20 p.m.

1 stop13h 20m

C$ 593

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Mon 24/8

1:53 p.m.-5:35 a.m.

2 stops14h 42m

Ottawa

Mon 31/8

7:00 a.m.-3:24 p.m.

1 stop9h 24m

C$ 595

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 10/9

8:25 p.m.-2:33 p.m.

1 stop17h 08m

Ottawa

Thu 17/9

7:20 a.m.-10:40 p.m.

1 stop16h 20m

C$ 653
Quickest round-trip

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 22/10

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

1 stop13h 45m

Ottawa

Sat 24/10

2:35 p.m.-7:52 p.m.

1 stop6h 17m

C$ 780

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Wed 12/8

12:16 p.m.-12:25 p.m.

2 stops23h 09m

Ottawa

Wed 26/8

8:15 p.m.-1:55 p.m.

1 stop18h 40m

C$ 807

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 10/9

2:50 p.m.-12:30 p.m.

2 stops20h 40m

Ottawa

Thu 17/9

6:15 p.m.-1:55 p.m.

2 stops20h 40m

C$ 811

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 20/8

2:50 p.m.-11:35 a.m.

2 stops19h 45m

Ottawa

Wed 26/8

6:55 a.m.-10:40 p.m.

3 stops16h 45m

C$ 918

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Tue 29/9

2:50 p.m.-12:30 p.m.

2 stops20h 40m

Ottawa

Sat 3/10

6:15 p.m.-1:55 p.m.

2 stops20h 40m

C$ 939

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 27/8

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

3 stops25h 45m

Ottawa

Sun 30/8

8:55 a.m.-1:55 p.m.

2 stops30h 00m

C$ 950

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 1/10

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

1 stop13h 45m

Ottawa

Mon 5/10

8:15 p.m.-1:55 p.m.

1 stop18h 40m

C$ 964

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

Showing 1-10 of 39 resultsSorted by cheapest first
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Best time to book a flight from Houston to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Houston 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 Houston to Ottawa

What is the cheapest month to book a flight from Houston to Ottawa?

Currently, September is the cheapest month in which you can book a flight from Houston to Ottawa (average of C$ 542). Flying from Houston to Ottawa in October is currently the most expensive (average of C$ 1,674). 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.

Related info for your journey

Find useful and relevant information for your journey from Houston to Ottawa. 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 into for flights to Ottawa from Houston?

    For a flight from Houston to Ottawa, you will be flying into Ottawa. Ottawa (YOW) is just 10.6 km from the centre of the city. Ottawa is the only Ottawa airport and it handles 0 inbound flights from Houston per day. 0 airlines have flights to Ottawa from Houston on a regular basis.

  • How long is the flight from Houston to Ottawa?

    There are many flights that can get you from Houston to Ottawa in 14h 39m. Fly via American Airlines, WestJet, or Delta to get the fastest option. Houston and Ottawa are separated by a distance of 2441 km. This flight may include one or multiple stops.

  • Can I find deals for flights from Houston to Ottawa that include hotel bookings?

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

  • How can I find direct flights from Houston to Ottawa?

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

  • Can I find deals for business class flights from Houston to Ottawa?

    Yes. Cheapflights offers flight deals from Houston to Ottawa 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 Houston to Ottawa?

    Currently, September is the cheapest month in which you can book a flight from Houston to Ottawa (average of C$ 542). Flying from Houston to Ottawa in October is currently the most expensive (average of C$ 1,674). 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 Ottawa?

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

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Can Cheapflights find flights from Houston to Ottawa with no change fees?

Yes, we can. To see specific flights from Houston to Ottawa with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Houston to Ottawa become cheaper?

Yes! Start tracking prices for Houston to Ottawa flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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