Cheap Flights Seattle to Cancun from £133

Flight FAQs

• Which airlines offer the cheapest flights from Seattle to Cancun?

  Based on Trip.com data, Air Canada offers Cheapest nonstop one-way flights from £133 (for example, SEA–CUN on Tue, Oct 27). For a Cheapest nonstop return flight, Air Canada offers fares from £274, departing on Sat, Dec 5 and returning on Thu, Dec 10.

• Which airlines offer direct flights from Seattle to Cancun?

  At the moment, you can catch a direct flight from Seattle to Cancun with the following airlines, including: Hawaiian 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 Seattle to Cancun?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Seattle to Cancun 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 from Seattle to Cancun each week?

  On average, 21 direct flights operate each week between Seattle and Cancun. See below the schedules of the main airlines serving this route:
  Aeromexico: S/M/T/W/T/F/S – AM4245 (departure at 07:35)

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

  Here are some tips for finding the best flight deals from Seattle to Cancun on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Tue, Oct 27, with one-way fares from just £133.
  · Compare airlines. Alaska Airlines currently offers the lowest fares on this route.
  · Set up a price alert to track fare changes without searching every day.
  · Check Trip.com regularly for flight deals and available promo codes.
  · Avoid peak season or book early. July is generally the busiest month for travel to Cancun.
  · Get exclusive promo codes on the Trip.com app.

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

  The cheapest month to book a flight from Seattle to Cancun is usually August, when demand is lower.

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

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Seattle to Cancun on October 24, 2026 with Air Canada, with prices starting at £135.

• Which airports should you choose for flights from Seattle to Cancun?

  Flights to Cancun can arrive at: Cancún International Airport (CUN). The most common route connects Seattle-Tacoma International Airport and Cancún International Airport (SEA–CUN).

• What is the time difference between Seattle and Cancun?

  The time difference between Cancun and Seattle is 3h.

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

  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.

• What is the average price of a one-way flight from Seattle to Cancun?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Seattle to Cancun is £324. Fares vary by travel date, airline and availability.

• What is the average price of a return flight from Seattle to Cancun?

  Based on Trip.com data for flights departing in the next 30 days, the average return fare from Seattle to Cancun is £803. Fares vary by travel date, airline and availability.

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

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

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

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