$187 Cheap Flights from Cancun (CUN) to Seattle (SEA)

Popular airlines from Cancun Intl. Airport (CUN) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Cancun to Seattle (CUN-SEA)

Prices were available within the past 7 days and start at $187 for one-way flights and $345 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aeromexico
Delta
Aeromexico
Delta
United
Spirit Airlines
United
United
Spirit Airlines
American Airlines
Flights from Cancun (CUN) to Seattle (SEA)
Origin airport
Cancun Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Aeromexico, Air Canada, Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United, Volaris
Roundtrip price
$345
Distance
2683 mi

Cancun to Seattle Flights

The cheapest times to fly from Cancun to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Cancun to Seattle are during the month of May. You can find some of the cheapest flights from Cancun to Seattle with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Cancun to Seattle

Sunday is one of the best days to book for cheap flights from Cancun to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Cancun to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Cancun to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $187 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Cancun to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Cancun to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How long does it take to fly from Cancun Airport to SEA?
Alaska Airlines has a direct flight taking off from Cancun Airport at 4:25PM and reaching Sea-Tac Airport at 9:00PM — a total travel time of 6 hours and 35 minutes. Pick the best available seat, pack some things to keep you occupied and the time will race by.
Is it cheaper to buy a plane ticket from Cancun Airport to Sea-Tac Airport last minute?
Being the spontaneous type is a rewarding way to explore the globe, but it isn’t always the smartest method to score a bargain plane ticket. Consider booking your CUN to Sea-Tac Airport journey ahead of time instead of leaving it until the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. Leave all that spontaneity for when you arrive at your destination!
What airports do you fly into for Seattle from Cancun?
With Seattle - Tacoma Intl. Airport (SEA), Renton Municipal Airport (RNT) and Boeing Field Airport (BFI) to pick from, traveling from Cancun to Seattle is no sweat. The city’s key hub, Seattle - Tacoma Intl. Airport (SEA), is around 12 mi south of the center. Besides ticket costs, consider factors like public transportation options from the airport and the distance to your hotel before making your decision. Get your Seattle adventure off to an awesome start by exploring Space Needle and Pike Place Market.
What are the most popular departure times for flights from CUN to Sea-Tac Airport?
For Delta Air Lines flights jetting from CUN to Sea-Tac Airport, the busiest time is between 4:00 PM - 5:00 PM. If you’d like to avoid any delays, head off in the morning. This allows you to dodge the air traffic that builds up around airports in the afternoon.
Can I change the date of my flight from Cancun Intl. Airport (CUN) to Sea-Tac Airport?
Make changes quickly to your Cancun Airport to Seattle - Tacoma Intl. Airport (SEA) flight through the Expedia Trips portal. But before you make any amendments, look over the conditions and rules in your itinerary to learn what the carrier will let you do and whether fees apply. Some airlines have a change fee per person, plus any difference in ticket prices. But if you booked in the last 24 hours, you may be able to cancel for free and organize new flights. You can also take a look at our Customer Service portal for further information and to connect with our Virtual Agent.

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