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Cheap flights from Houston to Ottawa from C$ 170

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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — YOW
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap 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 11 September 2025.

Round-trip from

C$ 398

One-way from

C$ 170

Popular in

November

Cheapest in

August

Average price

C$ 1,016
18/10-29/10
  • 18/10-29/10
  • 2 total stops
  • 29h 23m total
  • Houston to Ottawa
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27/9
  • 27/9
  • 1 total stop
  • 20h 49m total
  • Houston to Ottawa
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Highest demand for flights based on searches. 14% potential increase in price (C$ 261 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease (C$ 111 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Houston to Ottawa

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 11 September 2025.

Thu 16/108:10 p.m.IAH - YOW
1 stop20h 10mMultiple Airlines
Mon 20/104:25 p.m.YOW - IAH
1 stop19h 22mMultiple Airlines
Deal found 10/9C$ 435
Sun 2/117:57 p.m.IAH - YOW
2 stops27h 44mMultiple Airlines
Fri 7/119:30 a.m.YOW - IAH
1 stop25h 03mMultiple Airlines
Deal found 10/9C$ 443
Sun 26/108:37 p.m.IAH - YOW
1 stop19h 36mMultiple Airlines
Sun 2/115:00 a.m.YOW - IAH
1 stop31h 44mMultiple Airlines
Deal found 11/9C$ 486
Sun 2/117:57 p.m.IAH - YOW
2 stops27h 44mMultiple Airlines
Sat 8/119:30 a.m.YOW - IAH
1 stop9h 12mMultiple Airlines
Deal found 10/9C$ 514
Thu 9/106:00 a.m.IAH - YOW
1 stop10h 20mMultiple Airlines
Mon 13/103:50 p.m.YOW - IAH
1 stop9h 38mMultiple Airlines
Deal found 10/9C$ 520
Fri 26/95:37 a.m.IAH - YOW
1 stop10h 43mMultiple Airlines
Mon 29/93:50 p.m.YOW - IAH
1 stop9h 06mMultiple Airlines
Deal found 10/9C$ 534
Fri 10/108:10 p.m.IAH - YOW
1 stop20h 10mMultiple Airlines
Mon 13/103:50 p.m.YOW - IAH
1 stop9h 38mMultiple Airlines
Deal found 10/9C$ 538
Thu 9/106:00 a.m.HOU - YOW
2 stops17h 22mWestJet
Mon 13/105:55 a.m.YOW - HOU
2 stops42h 05mWestJet
Deal found 10/9C$ 1,232
Sat 25/102:22 p.m.HOU - YOW
2 stops33h 20mWestJet
Sat 1/115:40 a.m.YOW - HOU
2 stops29h 38mWestJet
Deal found 10/9C$ 1,323
Fri 10/102:22 p.m.HOU - YOW
2 stops9h 00mWestJet
Mon 13/105:55 a.m.YOW - HOU
2 stops36h 53mWestJet
Deal found 10/9C$ 1,334
Sat 20/1210:35 a.m.HOU - YOW
2 stops37h 07mWestJet
Mon 5/15:40 a.m.YOW - HOU
2 stops34h 22mWestJet
Deal found 9/9C$ 1,366
Thu 16/106:00 a.m.HOU - YOW
2 stops17h 22mWestJet
Mon 20/105:55 a.m.YOW - HOU
2 stops18h 05mWestJet
Deal found 11/9C$ 1,447

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 11 September 2025.
Use the filters below to find and compare flights from Houston to Ottawa that are best for you.

Fly from

Houston

Fly to

Ottawa

Route

Depart

Return

Price

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sun 2/11

7:57 p.m.-12:41 a.m.

2 stops27h 44m

Ottawa

Fri 7/11

9:30 a.m.-9:33 a.m.

1 stop25h 03m

C$ 443

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Thu 16/10

5:57 p.m.-2:56 p.m.

2 stops19h 59m

Ottawa

Mon 20/10

4:25 p.m.-10:47 a.m.

1 stop19h 22m

C$ 466

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sun 26/10

8:37 p.m.-5:13 p.m.

1 stop19h 36m

Ottawa

Sun 2/11

5:00 a.m.-11:44 a.m.

1 stop31h 44m

C$ 486

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Fri 26/9

5:37 a.m.-5:20 p.m.

1 stop10h 43m

Ottawa

Mon 29/9

3:50 p.m.-11:56 p.m.

1 stop9h 06m

C$ 534

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Sun 2/11

5:25 a.m.-12:42 a.m.

2 stops18h 17m

Ottawa

Sat 8/11

4:20 p.m.-8:33 p.m.

3 stops29h 13m

C$ 536

HoustonOttawa

IAH - YOW

IAHYOW

Houston George Bush Intcntl

Fri 10/10

8:10 p.m.-5:20 p.m.

1 stop20h 10m

Ottawa

Mon 13/10

3:50 p.m.-12:28 a.m.

1 stop9h 38m

C$ 538

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Thu 9/10

6:00 a.m.-12:22 a.m.

2 stops17h 22m

Ottawa

Mon 13/10

5:55 a.m.-11:00 p.m.

2 stops42h 05m

C$ 1,232

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Fri 3/10

10:44 a.m.-12:22 a.m.

2 stops12h 38m

Ottawa

Tue 7/10

5:55 a.m.-5:48 p.m.

2 stops12h 53m

C$ 1,232

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Sat 25/10

2:22 p.m.-12:42 a.m.

2 stops33h 20m

Ottawa

Sat 1/11

5:40 a.m.-10:18 a.m.

2 stops29h 38m

C$ 1,323

HoustonOttawa

HOU - YOW

HOUYOW

Houston Hobby

Fri 21/11

6:00 a.m.-12:42 a.m.

2 stops17h 42m

Ottawa

Mon 24/11

5:40 a.m.-11:46 p.m.

2 stops19h 06m

C$ 1,334

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 19 results
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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, October is the cheapest month in which you can book a flight from Houston to Ottawa (average of C$ 224). Flying from Houston to Ottawa in December is currently the most expensive (average of C$ 326). 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 17h 22m. Fly via WestJet to get the fastest option. Houston and Ottawa are separated by a distance of 2441 km.

  • 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, October is the cheapest month in which you can book a flight from Houston to Ottawa (average of C$ 224). Flying from Houston to Ottawa in December is currently the most expensive (average of C$ 326). 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
Smiths Falls
Perth
Prescott
Pembroke
Wakefield

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Alternative routes for Houston to Ottawa

See prices for flight routes from nearby airports that may be better suited for you.
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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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