Cheap Flights from Houston to Ottawa from $388

Frequently Asked Questions

• What are the cheapest flights from Houston to Ottawa (HOU-YOW)?

  Based on Trip.com data, WestJet offers one-way fares as low as $388 on Cheapest nonstop routes (e.g. IAH to YOW on Sun, Sep 13), while WestJet offers Cheapest nonstop round-trips from $543 departing on Sun, Sep 13 and returning on Tue, Sep 15.

• Which airlines offer direct flights from Houston to Ottawa?

  At the moment, you can catch a nonstop flight from Houston to Ottawa with the following airlines, including: Frontier Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from Houston to Ottawa?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Houston to Ottawa is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Houston to Ottawa?

  To find best deals on flights from Houston to Ottawa, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Sep 13, with one-way flights priced at just $388.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is WestJet.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Ottawa travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Houston (HOU) to Ottawa (YOW) the cheapest?

  The cheapest months to fly from Houston to Ottawa is November, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Houston to Ottawa on?

  After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Houston to Ottawa on September 10, 2026 with Frontier Airlines, with prices starting at $168.

• Which airports can I fly into Ottawa from Houston?

  You can arrive at any of the following airports in Ottawa: Ottawa International Airport (YOW), and Gatineau-Ottawa Executive Airport (YND). Flights from George Bush Intercontinental Airport to Ottawa International Airport (IAH-YOW) are by far the most popular option for this route.

• Is there any time difference between Houston and Ottawa?

  The time difference between Ottawa and Houston is 1h.

• How do I change or cancel my ticket from Houston to Ottawa?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average cost of a one-way flight from Houston to Ottawa?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Houston to Ottawa is $359. Fares vary by travel date, airline and availability.

• How do I book flights from Houston to Ottawa on Trip.com?

  Enter Houston and Ottawa, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.