$170 Cheap Flights from Seattle (SEA) to Cancun (CUN)

View $170 flight on Sat, Jan 10, 2026Opens in a new window

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

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Cheap Flights from Seattle to Cancun (SEA-CUN)

Prices were available within the past 7 days and start at $170 for one-way flights and $362 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aeromexico
Tue, Jan 13 - Sat, Jan 17
SEA
Seattle
CUN
Cancun
$362 Roundtrip, just found
$362
Roundtrip
just found
Select Aeromexico flight, departing Tue, Jan 13 from Seattle to Cancun, returning Sat, Jan 17, priced at $362 just found
Delta
Sat, Jan 10 - Wed, Jan 14
SEA
Seattle
CUN
Cancun
$362 Roundtrip, just found
$362
Roundtrip
just found
Select Delta flight, departing Sat, Jan 10 from Seattle to Cancun, returning Wed, Jan 14, priced at $362 just found
Delta
Sat, Jan 10 - Wed, Jan 14
SEA
Seattle
CUN
Cancun
$365 Roundtrip, just found
$365
Roundtrip
just found
Select Delta flight, departing Sat, Jan 10 from Seattle to Cancun, returning Wed, Jan 14, priced at $365 just found
Aeromexico
Sat, Jan 10 - Wed, Jan 14
SEA
Seattle
CUN
Cancun
$366 Roundtrip, just found
$366
Roundtrip
just found
Select Aeromexico flight, departing Sat, Jan 10 from Seattle to Cancun, returning Wed, Jan 14, priced at $366 just found
Delta
Thu, Jan 29 - Thu, Feb 5
SEA
Seattle
CUN
Cancun
$367 Roundtrip, found 1 day ago
$367
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jan 29 from Seattle to Cancun, returning Thu, Feb 5, priced at $367 found 1 day ago
Alaska Airlines
Mon, Feb 9 - Fri, Feb 13
SEA
Seattle
CUN
Cancun
$368 Roundtrip, just found
$368
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Feb 9 from Seattle to Cancun, returning Fri, Feb 13, priced at $368 just found
Delta
Tue, Jan 13 - Thu, Jan 22
SEA
Seattle
CUN
Cancun
$369 Roundtrip, found 9 hours ago
$369
Roundtrip
found 9 hours ago
Select Delta flight, departing Tue, Jan 13 from Seattle to Cancun, returning Thu, Jan 22, priced at $369 found 9 hours ago
Alaska Airlines
Sun, Jan 11 - Thu, Jan 15
SEA
Seattle
CUN
Cancun
$371 Roundtrip, just found
$371
Roundtrip
just found
Select Alaska Airlines flight, departing Sun, Jan 11 from Seattle to Cancun, returning Thu, Jan 15, priced at $371 just found
United
Fri, Jan 9 - Tue, Jan 13
SEA
Seattle
CUN
Cancun
$374 Roundtrip, just found
$374
Roundtrip
just found
Select United flight, departing Fri, Jan 9 from Seattle to Cancun, returning Tue, Jan 13, priced at $374 just found
American Airlines
Tue, Feb 10 - Wed, Feb 18
SEA
Seattle
CUN
Cancun
$376 Roundtrip, just found
$376
Roundtrip
just found
Select American Airlines flight, departing Tue, Feb 10 from Seattle to Cancun, returning Wed, Feb 18, priced at $376 just found

Find the cheapest month to fly from Seattle (SEA) to Cancun (CUN)

March is typically the cheapest month to fly

From $312 - $480 per traveler.

Alternative airports near Cancun

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cancun Intl. CUN. Cheapest and Closest option available. Average driving time to city center is 18 minutes. Flights from $580
CUN
Cancun Intl.
CheapestClosest
Average driving time to city center18 min
Flights from $580
Flights from Seattle (SEA) to Cancun (CUN)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Cancun Intl.
Airlines serving
Aeromexico, Air Canada, Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United, Volaris
Roundtrip price
$360
Distance
2683 mi
Average flight time
7 hours 57 mins

Seattle to Cancun Flights

The cheapest times to fly from Seattle to Cancun

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 Seattle to Cancun are during the month of January. You can find some of the cheapest flights from Seattle to Cancun with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Cancun

Sunday is one of the best days to book for cheap flights from Seattle to Cancun: 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 Seattle to Cancun

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 Seattle to Cancun in 2025. You can also book with separate airlines for your outbound and return journeys, from $170 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 Seattle to Cancun 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 Seattle to Cancun 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 much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN) cost?
Secure a cheap one-way flight from $170 or cheap return flight from $362 from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN)?
The cheapest month to fly from SEA to CUN is January, when demand is low. Off-peak season is generally when you'll find cheap fares for travel between these airports.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN)?
Fly directly from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN) on a Delta Air Lines flight.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN)?
While prices may vary depending on your travel dates, Alaska Airlines and Delta Air Lines are go-to choices for flights between Seattle - Tacoma Intl. Airport (SEA) and Cancun Intl. Airport (CUN). You can also compare airlines on Expedia and use the "Sort by" filter to find the cheapest fare for your SEA to CUN flight.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN)?
Each day on average, 2 nonstop flights operate from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN). Choose the departure date that fits your schedule best.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN)?
Flights between SEA and CUN are their busiest at 7 AM. For a more relaxed atmosphere and potentially cheaper fares, look for a time when demand is lower.
What day of the week has the most flights from SEA to CUN?
Fly on a Friday if you're after the biggest selection of flights from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN).
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN)?
Seattle - Tacoma Intl. Airport (SEA)'s first flight to Cancun Intl. Airport (CUN) takes off at approximately 7:00AM UTC-8. With a flight time of 6h, you'll arrive at around 4:00PM UTC-5.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN)?
It takes about 5 hours and 56 minutes to travel the 2,700 mi from SEA to CUN.
What airline has the least delays from SEA to CUN?
Consider booking with Delta Air Lines if you'd like to go straight from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN) without any interruptions. This airline has the strongest track record for punctuality, with an on-time performance of 94%. Want to be notified if anything changes? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN)?
Book a flight from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN) that takes off before 3 PM to reduce the likelihood of delays. Departures after this time are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Cancun from Seattle - Tacoma Intl. Airport (SEA)?
Cancun Intl. Airport (CUN) is the only airport in Cancun with direct flights from Seattle - Tacoma Intl. Airport (SEA). Check out the available options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN) last-minute?
Booking your plane ticket from SEA to CUN right before your getaway is usually more expensive. However, if there's some wiggle room with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a SEA to CUN flight and hotel package?
You'll typically save money by securing a SEA to CUN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your ideal accommodations and flights, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN)?
If you booked your SEA to CUN flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

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*Available to One Key members.