$185 Cheap Flights from Cancun (CUN) to Seattle (SEA)

View $185 flight on Thu, Oct 16, 2025Opens in a new window

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 $185 for one-way flights and $343 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aeromexico
Sat, Oct 18 - Sat, Oct 25
CUN
Cancun
SEA
Seattle
$343 Roundtrip, found 1 day ago
$343
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Sat, Oct 18 from Cancun to Seattle, returning Sat, Oct 25, priced at $343 found 1 day ago
Aeromexico
Sat, Oct 18 - Sat, Oct 25
CUN
Cancun
SEA
Seattle
$343 Roundtrip, found 1 day ago
$343
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Sat, Oct 18 from Cancun to Seattle, returning Sat, Oct 25, priced at $343 found 1 day ago
Bargain Flight
Fri, Oct 10 - Mon, Oct 20
CUN
Cancun
SEA
Seattle
$345 Roundtrip, found 2 hours ago
$345
Roundtrip
found 2 hours ago
Select Bargain Flight flight, departing Fri, Oct 10 from Cancun to Seattle, returning Mon, Oct 20, priced at $345 found 2 hours ago
Delta
Sat, Oct 18 - Sat, Oct 25
CUN
Cancun
SEA
Seattle
$346 Roundtrip, found 1 day ago
$346
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Oct 18 from Cancun to Seattle, returning Sat, Oct 25, priced at $346 found 1 day ago
Aeromexico
Sat, Oct 18 - Sat, Oct 25
CUN
Cancun
SEA
Seattle
$346 Roundtrip, found 1 day ago
$346
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Sat, Oct 18 from Cancun to Seattle, returning Sat, Oct 25, priced at $346 found 1 day ago
Aeromexico
Wed, Oct 1 - Sun, Oct 5
CUN
Cancun
SEA
Seattle
$347 Roundtrip, found 4 days ago
$347
Roundtrip
found 4 days ago
Select Aeromexico flight, departing Wed, Oct 1 from Cancun to Seattle, returning Sun, Oct 5, priced at $347 found 4 days ago
Alaska Airlines
Sun, Oct 5 - Wed, Oct 15
CUN
Cancun
SEA
Seattle
$348 Roundtrip, just found
$348
Roundtrip
just found
Select Alaska Airlines flight, departing Sun, Oct 5 from Cancun to Seattle, returning Wed, Oct 15, priced at $348 just found
Alaska Airlines
Fri, Oct 10 - Mon, Oct 20
CUN
Cancun
SEA
Seattle
$349 Roundtrip, found 2 hours ago
$349
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Fri, Oct 10 from Cancun to Seattle, returning Mon, Oct 20, priced at $349 found 2 hours ago
Aeromexico
Sat, Oct 18 - Sat, Oct 25
CUN
Cancun
SEA
Seattle
$351 Roundtrip, found 1 day ago
$351
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Sat, Oct 18 from Cancun to Seattle, returning Sat, Oct 25, priced at $351 found 1 day ago
Southwest Airlines
Wed, Oct 1 - Sun, Oct 5
CUN
Cancun
SEA
Seattle
$351 Roundtrip, found 4 days ago
$351
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Wed, Oct 1 from Cancun to Seattle, returning Sun, Oct 5, priced at $351 found 4 days ago

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

September is typically the cheapest month to fly

From $301 - $526 per traveler.

Graph displaying average flight prices per month

Alternative airports near Seattle

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

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $429
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $429
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, Sun Country Airlines, United, Volaris
Roundtrip price
$343
Distance
2683 mi
Average flight time
7 hours 24 mins

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 October. 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 $185 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 much does a flight from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA) cost?
You can find cheap return flights from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA) starting at $343. Reserve your seat and get ready for takeoff. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Aeromexico and Delta flight leaving CUN on July 23 2025 and touching down at SEA. The price was last updated on July 13 2025 and has not changed since.
What is the cheapest month to fly from CUN to SEA?
The cheapest flights from CUN to SEA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA)?
You can travel nonstop from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA) on a Delta Air Lines flight.
What is the cheapest airline that flies from CUN to SEA?
With prices as low as $185 for a one-way flight from CUN to SEA, Alaska Airlines is currently the cheapest airline flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from CUN on October 8 2025. Prices were last updated on July 13 2025 and have not changed since.
How many flights per day from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA)?
With, on average, 2 nonstop flights departing from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA) each day, you'll be jetting off in no time.
What are the most popular departure times for flights from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA)?
The 5 PM departures from CUN to SEA are the top choice for many travelers. They can also be more expensive. If you want to save on your trip, pick a less crowded time to fly.
What day of the week has the most flights from CUN to SEA?
Depart on a Friday if you're searching for the largest selection of flights from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA).
What is the earliest flight from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA)?
Cancun Intl. Airport (CUN)'s earliest flight to Seattle - Tacoma Intl. Airport (SEA) is at approximately 5:10PM UTC-5. With a total travel time of 6h 50m, you'll arrive at around 9:00PM UTC-8.
How long does it take to fly from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA)?
Flights from CUN to SEA have an average travel time of 6 hours and 54 minutes. The total distance between the two is 2,700 mi.
What airline has the least delays from CUN to SEA?
With 91% of flights typically landing on time, Delta Air Lines has the best on-time performance for direct flights from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA). To check your flight status and get notifications about any changes, simply head to the Expedia App.
What is the best time to fly from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA)?
Opt for a flight from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time have a 22% higher chance of being canceled, on average.**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 Seattle from Cancun Intl. Airport (CUN)?
Compare your flight options from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA). This is the only Seattle airport you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Holding off until right before your break to book a flight from CUN to SEA often results in higher prices. While you might find some last-minute offers, there's no guarantee. Keep your travel plans flexible to boost your chances of scoring a bargain.
Is it cheaper to book a CUN to SEA flight and hotel package?
Booking a CUN to SEA flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our extensive range of hotels and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cancun Intl. Airport (CUN) to Seattle - Tacoma Intl. Airport (SEA)?
It's generally possible to reschedule or cancel your CUN to SEA flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.