Cheap Flights from Houston to Ottawa from $129

Frequently Asked Questions

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

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as $129 on Cheapest nonstop routes (e.g. IAH to YOW on Thu, Apr 2), while Frontier Airlines offers Cheapest nonstop round-trips from $389 departing on Thu, Mar 26 and returning on Sun, Mar 29.

• 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 Air Canada 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 Thu, Apr 2, with one-way flights priced at just $129.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
  · 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 March flight calendar, it's currently cheapest to fly from Houston to Ottawa on March 25, 2026 with Spirit Airlines, with prices starting at $296.

• Which airports can I fly to for Ottawa from Houston?

  You can land at any one of the following hubs in Ottawa, with George Bush Intercontinental Airport to Ottawa International Airport (IAH-YOW) is by far the most common option on this route: Ottawa International Airport (YOW) Gatineau-Ottawa Executive Airport (YND).

• 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.