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Cheap flights from Houston to Ottawa from C$ 236

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 28/5. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — YOW
1 Jun — 8 Jun1
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 2 May 2026.

Thu 28/57:28 p.m.
IAH
-
YOW
1 stop18h 05m
Multiple Airlines
Mon 1/67:00 a.m.
YOW
-
IAH
1 stop9h 03m
Multiple Airlines
Deal found 28/4C$ 528
Thu 14/58:29 a.m.
IAH
-
YOW
1 stop29h 31m
Multiple Airlines
Mon 18/54:20 p.m.
YOW
-
IAH
1 stop27h 29m
Multiple Airlines
Deal found 27/4C$ 549
Thu 28/57:28 p.m.
IAH
-
YOW
1 stop18h 05m
Multiple Airlines
Tue 2/67:00 a.m.
YOW
-
IAH
2 stops33h 13m
Multiple Airlines
Deal found 1/5C$ 562
Thu 4/68:02 p.m.
IAH
-
YOW
2 stops41h 58m
Multiple Airlines
Tue 9/62:20 p.m.
YOW
-
IAH
1 stop21h 33m
Multiple Airlines
Deal found 27/4C$ 569
Sun 14/66:30 a.m.
IAH
-
YOW
1 stop9h 45m
Multiple Airlines
Wed 17/67:00 a.m.
YOW
-
IAH
2 stops16h 50m
Multiple Airlines
Deal found 30/4C$ 576
Thu 20/87:04 p.m.
IAH
-
YOW
1 stop18h 29m
Multiple Airlines
Wed 26/87:00 a.m.
YOW
-
IAH
2 stops12h 09m
Multiple Airlines
Deal found 1/5C$ 578
Fri 29/52:20 p.m.
IAH
-
YOW
2 stops23h 40m
Multiple Airlines
Fri 5/67:00 a.m.
YOW
-
IAH
1 stop26h 50m
Multiple Airlines
Deal found 30/4C$ 606
Sat 22/87:00 a.m.
IAH
-
YOW
1 stop9h 40m
Multiple Airlines
Sun 30/85:55 p.m.
YOW
-
IAH
2 stops16h 49m
Multiple Airlines
Deal found 29/4C$ 618
Thu 20/86:05 p.m.
HOU
-
YOW
2 stops22h 35m
Multiple Airlines
Wed 26/88:15 p.m.
YOW
-
HOU
2 stops24h 00m
Multiple Airlines
Deal found 1/5C$ 1,128
Fri 12/66:00 a.m.
HOU
-
YOW
2 stops17h 20m
Delta
Fri 19/66:55 a.m.
YOW
-
HOU
2 stops15h 48m
Delta
Deal found 28/4C$ 1,236
Thu 21/510:27 a.m.
HOU
-
YOW
2 stops12h 53m
WestJet
Tue 26/56:55 a.m.
YOW
-
HOU
2 stops10h 14m
WestJet
Deal found 30/4C$ 1,245
Thu 9/76:00 a.m.
HOU
-
YOW
2 stops17h 20m
Delta
Sat 11/76:55 a.m.
YOW
-
HOU
2 stops15h 56m
Delta
Deal found 28/4C$ 1,251

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 2 May 2026.

Round-trip from

C$ 528

One-way from

C$ 236

Popular in

October

Cheapest in

December

Average price

C$ 1,074
28/5-1/6
  • 28/5-1/6
  • 2 total stops
  • 27h 08m total
  • Houston to Ottawa
Search Deals
28/5
  • 28/5
  • 1 total stop
  • 18h 05m total
  • Houston to Ottawa
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 150 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 98 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 2 May 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 14/5

8:29 a.m.-3:00 p.m.

1 stop29h 31m

Ottawa

Mon 18/5

4:20 p.m.-6:49 p.m.

1 stop27h 29m

C$ 549

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sat 22/8

7:00 a.m.-5:40 p.m.

1 stop9h 40m

Ottawa

Sun 30/8

2:20 p.m.-9:44 a.m.

1 stop20h 24m

C$ 631

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sun 14/6

9:58 a.m.-3:00 p.m.

1 stop28h 02m

Ottawa

Sun 21/6

6:15 p.m.-12:46 p.m.

2 stops43h 31m

C$ 659

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sat 8/8

7:00 a.m.-5:40 p.m.

1 stop9h 40m

Ottawa

Sun 16/8

6:25 p.m.-8:46 a.m.

2 stops39h 21m

C$ 678

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 28/5

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

2 stops23h 26m

Ottawa

Tue 2/6

6:15 p.m.-4:55 a.m.

3 stops35h 40m

C$ 722

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sun 14/6

12:33 p.m.-12:17 p.m.

2 stops22h 44m

Ottawa

Wed 17/6

7:00 a.m.-10:50 p.m.

3 stops16h 50m

C$ 726

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sun 28/6

7:06 a.m.-12:17 p.m.

1 stop28h 11m

Ottawa

Mon 6/7

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

1 stop18h 40m

C$ 755

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Tue 12/5

5:45 a.m.-2:55 p.m.

3 stops32h 10m

Ottawa

Sat 16/5

7:00 a.m.-7:33 a.m.

2 stops25h 33m

C$ 770

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Fri 12/6

6:00 a.m.-12:20 a.m.

2 stops17h 20m

Ottawa

Fri 19/6

6:55 a.m.-9:43 p.m.

2 stops15h 48m

C$ 1,236
Quickest round-trip

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Thu 21/5

10:27 a.m.-12:20 a.m.

2 stops12h 53m

Ottawa

Tue 26/5

6:55 a.m.-4:09 p.m.

2 stops10h 14m

C$ 1,245

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 32 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, November is the cheapest month in which you can book a flight from Houston to Ottawa (average of C$ 212). Flying from Houston to Ottawa in October is currently the most expensive (average of C$ 1,623). 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 Houston to Ottawa?

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 12h 53m. Fly via Delta or WestJet 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, November is the cheapest month in which you can book a flight from Houston to Ottawa (average of C$ 212). Flying from Houston to Ottawa in October is currently the most expensive (average of C$ 1,623). 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
Wakefield
Pembroke
Smiths Falls

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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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