Cheap Flights from Calgary to Seattle from US$123

Frequently Asked Questions

• What are the cheapest flights from Calgary to Seattle (YYC-SEA)?

  Based on Trip.com data, WestJet offers one-way fares as low as US$123 on Cheapest nonstop routes (e.g. YYC to SEA on Tue, Sep 22), while WestJet offers Cheapest nonstop round-trips from US$193 departing on Sat, Oct 3 and returning on Sat, Oct 10.

• Which airlines offer direct flights from Calgary to Seattle?

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

• How long is a flight from Calgary to Seattle?

  It takes about 1 hour 54 minutes to fly from Calgary to Seattle.

• When is the best time to book flights from Calgary 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 Calgary 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 many flights are there per week from Calgary to Seattle?

  Based on Trip.com data in the past 4 weeks, there is 37 flight per week flying from Calgary to Seattle. You can check the weekly schedule for popular airlines on this route below: Alaska Airlines: S/M/T/W/T/F/S -- AS2148 (06:10)

• How can I find the best deals on flights from Calgary to Seattle?

  To find best deals on flights from Calgary 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 Tue, Sep 22, with one-way flights priced at just US$123.
  · 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 Seattle travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Calgary (YYC) to Seattle (SEA) the cheapest?

  The cheapest months to fly from Calgary to Seattle is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Calgary to Seattle on?

  After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Calgary to Seattle on August 12, 2026 with WestJet, with prices starting at US$235.

• Which airports can I fly to for Seattle from Calgary?

  You can land at any one of the following hubs in Seattle, with Calgary International Airport to Seattle-Tacoma International Airport (YYC-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).

• Is there any time difference between Calgary and Seattle?

  The time difference between Seattle and Calgary is 2h.

• How do I change or cancel my ticket from Calgary to Seattle?

  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 Calgary to Seattle?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Calgary to Seattle is US$268. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from Calgary to Seattle?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Calgary to Seattle is US$444. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from Calgary to Seattle on Trip.com?

  Enter Calgary and Seattle, 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.

• Are there budget airlines on the Calgary to Seattle route?

  WestJetare the most popular budget airlines flying from Calgary to Seattle. Check baggage, seat and payment fees before comparing the final price.