Cheap Flights from Seattle (SEA) to Cancun (CUN) from HK$1,545~

View HK$1,545 flight on Sun, 8 Mar 2026Opens in a new window

Popular airlines from Seattle to Cancun, Quintana Roo (CUN-Cancun Intl.)

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Find Cheap Flights from Seattle (SEA) to Cancun (CUN)

Prices were available within the past 7 days and start at HK$1,545 for one-way flights and HK$3,211 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aeromexico
Sun, 8 Mar - Fri, 13 Mar
SEA
Seattle
CUN
Cancun
HK$3,211 Return, found 5 days ago
HK$3,211
Return
found 5 days ago
Select Aeromexico flight, departing Sun, 8 Mar from Seattle to Cancun, returning Fri, 13 Mar, priced at HK$3,211 found 5 days ago
Delta
Sun, 8 Mar - Fri, 13 Mar
SEA
Seattle
CUN
Cancun
HK$3,211 Return, found 5 days ago
HK$3,211
Return
found 5 days ago
Select Delta flight, departing Sun, 8 Mar from Seattle to Cancun, returning Fri, 13 Mar, priced at HK$3,211 found 5 days ago
Delta
Sun, 8 Mar - Fri, 13 Mar
SEA
Seattle
CUN
Cancun
HK$3,211 Return, found 5 days ago
HK$3,211
Return
found 5 days ago
Select Delta flight, departing Sun, 8 Mar from Seattle to Cancun, returning Fri, 13 Mar, priced at HK$3,211 found 5 days ago
Delta
Sun, 8 Mar - Fri, 13 Mar
SEA
Seattle
CUN
Cancun
HK$3,246 Return, found 5 days ago
HK$3,246
Return
found 5 days ago
Select Delta flight, departing Sun, 8 Mar from Seattle to Cancun, returning Fri, 13 Mar, priced at HK$3,246 found 5 days ago
Aeromexico
Sun, 8 Mar - Fri, 13 Mar
SEA
Seattle
CUN
Cancun
HK$3,290 Return, found 5 days ago
HK$3,290
Return
found 5 days ago
Select Aeromexico flight, departing Sun, 8 Mar from Seattle to Cancun, returning Fri, 13 Mar, priced at HK$3,290 found 5 days ago
Alaska Airlines
Sat, 7 Feb - Sat, 14 Feb
SEA
Seattle
CUN
Cancun
HK$3,362 Return, found 6 days ago
HK$3,362
Return
found 6 days ago
Select Alaska Airlines flight, departing Sat, 7 Feb from Seattle to Cancun, returning Sat, 14 Feb, priced at HK$3,362 found 6 days ago
Alaska Airlines
Sun, 8 Feb - Sat, 14 Feb
SEA
Seattle
CUN
Cancun
HK$3,432 Return, found 6 days ago
HK$3,432
Return
found 6 days ago
Select Alaska Airlines flight, departing Sun, 8 Feb from Seattle to Cancun, returning Sat, 14 Feb, priced at HK$3,432 found 6 days ago
Delta
Sun, 8 Mar - Fri, 13 Mar
SEA
Seattle
CUN
Cancun
HK$3,441 Return, found 5 days ago
HK$3,441
Return
found 5 days ago
Select Delta flight, departing Sun, 8 Mar from Seattle to Cancun, returning Fri, 13 Mar, priced at HK$3,441 found 5 days ago
United
Sun, 8 Mar - Fri, 13 Mar
SEA
Seattle
CUN
Cancun
HK$3,556 Return, found 5 days ago
HK$3,556
Return
found 5 days ago
Select United flight, departing Sun, 8 Mar from Seattle to Cancun, returning Fri, 13 Mar, priced at HK$3,556 found 5 days ago
American Airlines
Sun, 8 Mar - Fri, 13 Mar
SEA
Seattle
CUN
Cancun
HK$3,566 Return, found 5 days ago
HK$3,566
Return
found 5 days ago
Select American Airlines flight, departing Sun, 8 Mar from Seattle to Cancun, returning Fri, 13 Mar, priced at HK$3,566 found 5 days ago

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

March is typically the cheapest month to fly

From HK$2,428 - HK$3,638 per traveller.
Seattle to Cancun route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Cancun Intl.
Return price
HK$3,211
Distance
4294 km
Average flight time
8 hours 59 mins

Flights from Seattle to Cancun

Book cheap flights from Seattle (SEA) to Cancun (CUN) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Seattle (SEA) to Cancun (CUN) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Seattle (SEA) to Cancun (CUN) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Cancun flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Cancun and things to do in Cancun for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Cancun more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Cancun is HK$1,545 now!

 

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to Cancun Airport?
If you're planning on traveling from SEA to Cancun Intl. Airport (CUN), round-trip flights start from HK$3,211. 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 kilometers 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 travelers 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.

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