Cheap Flights Houston to Seattle from CAD 88

Flight FAQs

• Which airlines offer the cheapest flights from Houston (HOU) to Seattle (SEA)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as CAD 88 on Cheapest nonstop routes (e.g. IAH to SEA on Wed, Sep 9), while Alaska Airlines offers Cheapest nonstop round-trips from CAD 302 departing on Wed, Sep 9 and returning on Wed, Sep 16.

• Which airlines offer flights from Houston to Seattle?

  At the moment, several airlines serve connecting flights from Houston to Seattle, including: Frontier Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• How long is the flight from Houston (HOU) to Seattle (SEA)?

  It takes about 4 hours 53 minutes to fly from Houston (HOU) to Seattle (SEA).

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

  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 Seattle 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 Seattle?

  To find best deals on flights from Houston to Seattle, 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 Wed, Sep 9, with one-way flights priced at just CAD 88.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Alaska 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 Seattle travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from Houston to Seattle to get the best price?

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

• Which upcoming date is the cheapest for flights from Houston to Seattle?

  After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Houston to Seattle on July 21, 2026 with Frontier Airlines, with prices starting at CAD 180.

• Which airports can I fly through when travelling to Seattle from Houston?

  You can land at any one of the following hubs in Seattle, with George Bush Intercontinental Airport to Seattle-Tacoma International Airport (IAH-SEA) is by far the most common option on this route: King County (Boeing Field) International Airport (BFI) Kenmore Air Harbor Seaplane Base (LKE) Seattle-Tacoma International Airport (SEA).

• What is the time difference between Houston and Seattle?

  The time difference between Seattle and Houston is 2h.

• How can I change or cancel my flight ticket from Houston to Seattle?

  Tickets can only be changed or cancelled 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.