S$351 Cheap Flights from Seattle to Cancun

View S$351 flight on Sun, 23 Aug, 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Seattle to Cancun (SEA-CUN)

Prices were available within the past 7 days and start at S$351 for one-way flights and S$719 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sun, 23 Aug - Sun, 30 Aug
SEA
Seattle
CUN
Cancun
S$719 Return, found 21 hours ago
S$719
Return
found 21 hours ago
Select Air Canada flight, departing Sun, 23 Aug from Seattle to Cancun, returning Sun, 30 Aug, priced at S$719 found 21 hours ago
Air Canada
Sun, 23 Aug - Sun, 30 Aug
SEA
Seattle
CUN
Cancun
S$783 Return, found 21 hours ago
S$783
Return
found 21 hours ago
Select Air Canada flight, departing Sun, 23 Aug from Seattle to Cancun, returning Sun, 30 Aug, priced at S$783 found 21 hours ago
Delta
Sun, 23 Aug - Sun, 30 Aug
SEA
Seattle
CUN
Cancun
S$803 Return, found 21 hours ago
S$803
Return
found 21 hours ago
Select Delta flight, departing Sun, 23 Aug from Seattle to Cancun, returning Sun, 30 Aug, priced at S$803 found 21 hours ago
Air Canada
Sun, 23 Aug - Sun, 30 Aug
SEA
Seattle
CUN
Cancun
S$806 Return, found 21 hours ago
S$806
Return
found 21 hours ago
Select Air Canada flight, departing Sun, 23 Aug from Seattle to Cancun, returning Sun, 30 Aug, priced at S$806 found 21 hours ago
United
Sun, 23 Aug - Sun, 30 Aug
SEA
Seattle
CUN
Cancun
S$861 Return, found 21 hours ago
S$861
Return
found 21 hours ago
Select United flight, departing Sun, 23 Aug from Seattle to Cancun, returning Sun, 30 Aug, priced at S$861 found 21 hours ago
Delta
Sun, 23 Aug - Sun, 30 Aug
SEA
Seattle
CUN
Cancun
S$868 Return, found 21 hours ago
S$868
Return
found 21 hours ago
Select Delta flight, departing Sun, 23 Aug from Seattle to Cancun, returning Sun, 30 Aug, priced at S$868 found 21 hours ago
American Airlines
Sun, 23 Aug - Sun, 30 Aug
SEA
Seattle
CUN
Cancun
S$873 Return, found 21 hours ago
S$873
Return
found 21 hours ago
Select American Airlines flight, departing Sun, 23 Aug from Seattle to Cancun, returning Sun, 30 Aug, priced at S$873 found 21 hours ago
Delta
Sun, 23 Aug - Sun, 30 Aug
SEA
Seattle
CUN
Cancun
S$875 Return, found 21 hours ago
S$875
Return
found 21 hours ago
Select Delta flight, departing Sun, 23 Aug from Seattle to Cancun, returning Sun, 30 Aug, priced at S$875 found 21 hours ago
American Airlines
Sun, 23 Aug - Sun, 30 Aug
SEA
Seattle
CUN
Cancun
S$880 Return, found 21 hours ago
S$880
Return
found 21 hours ago
Select American Airlines flight, departing Sun, 23 Aug from Seattle to Cancun, returning Sun, 30 Aug, priced at S$880 found 21 hours ago
WestJet
Sun, 23 Aug - Sun, 30 Aug
SEA
Seattle
CUN
Cancun
S$972 Return, found 21 hours ago
S$972
Return
found 21 hours ago
Select WestJet flight, departing Sun, 23 Aug from Seattle to Cancun, returning Sun, 30 Aug, priced at S$972 found 21 hours ago

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

May is typically the cheapest month to fly

From S$394 - S$554 per traveller.

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to Cancun Airport?
If you're planning on travelling from SEA to Cancun Intl. Airport (CUN), round-trip flights start from S$719. This figure is based on fares quoted within the last 7 days on Expedia for flights departing within the next year, so don't hang about. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Cancun Intl. Airport (CUN)?
This can differ from airline to airline, as each one has its own terms and conditions. Visit the Customer Service Portal, where there are instructions on how to cancel online.
How do I find cheap flights from Sea-Tac Airport to Cancun Intl. Airport (CUN) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to Cancun Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sea-Tac Airport to CUN?
With around 4,300 kilometres separating Seattle - Tacoma Intl. Airport (SEA) and Cancun Intl. Airport (CUN), your flight will be a long one. Pack wisely to make your time on board comfortable. Little things like an eye mask and a good neck pillow can make a massive difference.
Which airlines fly direct from SEA to CUN?
Many savvy travellers choose to fly with Alaska Airlines (AS) from Seattle - Tacoma Intl. Airport (SEA) to Cancun Intl. Airport (CUN). This popular airline offers 30 monthly flights, so you can easily find a flight time that's right for you. Another carrier servicing this route is Delta Air Lines (DL). You'll have 21 flights a month to take your pick of.
Are Sea-Tac Airport to Cancun Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up an awesome last-minute deal from Seattle - Tacoma Intl. Airport (SEA) to Cancun Airport, but it's also possible to miss out entirely! As many airlines release seats up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you see a bargain. Expedia compares air carrier prices and updates flight deals often, so you can rest easy knowing you're always seeing the latest offers.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Cancun Intl.
Airlines serving
Air Canada, American Airlines, Delta, United, WestJet
Return price
S$718
Distance
4294 km
Average flight time
7 hours 57 mins

Explore a world of travel with Expedia

*Available to Expedia members.