Find flights
Deals
When to book
FAQs

Cheap flights from Seattle to Cancún from £202

SEA — CUN
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Cancún

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Cancún

Thu 3/1219:05 -
1 stop18h 50m
Thu 10/1218:35 -
1 stop26h 47m
Deal found 25/10£349
Thu 3/1219:05 -
1 stop18h 50m
Thu 10/1217:10 -
Nonstop6h 47m
Deal found 25/10£385
Sun 13/1219:05 -
1 stop18h 50m
Sun 20/1217:20 -
Nonstop6h 40m
Deal found 29/10£406
Wed 30/1207:04 -
Nonstop5h 56m
Fri 8/117:10 -
Nonstop6h 40m
Deal found 30/10£413
Thu 3/1207:16 -
Nonstop6h 04m
Thu 10/1217:25 -
Nonstop6h 40m
Deal found 25/10£414
Sun 13/1223:59 -
1 stop10h 51m
Sun 20/1218:23 -
2 stops20h 47m
Deal found 29/10£415
Mon 28/1223:15 -
1 stop13h 15m
Fri 8/117:30 -
Nonstop6h 43m
Deal found 30/10£417
Sun 27/1223:15 -
1 stop13h 15m
Fri 8/108:00 -
1 stop9h 39m
Deal found 26/10£417
Wed 23/1207:16 -
Nonstop6h 04m
Fri 25/1211:20 -
1 stop15h 35m
Deal found 28/10£421

Find flight deals from Seattle to Cancún

Round-trip from

£349

One-way from

£202

Popular in

October

Cheapest in

May

Average price

£567

Good one-way deal

£634 or less
Air Canada
  • Air Canada
  • 3/12-10/12
  • 2 total stops
  • 45h 37m total
  • Seattle to Cancún
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 9/12-31/12
  • Nonstop
  • 5h 57m total
  • Seattle to Cancún
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2026
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Cancun.
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Cancún that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleCancún

SEA Seattle/Tacoma Intl - CUN Cancun

SEACUN

Seattle/Tacoma Intl

Wed 2/12

07:03-16:00

Nonstop5h 57m

Cancun

Wed 31/12

00:00-22:00

Nonstop0h 00m

£202

SeattleCancún

SEA Seattle/Tacoma Intl - CUN Cancun

SEACUN

Seattle/Tacoma Intl

Mon 11/1

07:15-16:20

Nonstop6h 05m

Cancun

Wed 31/12

00:00-22:00

Nonstop0h 00m

£202

SeattleCancún

SEA Seattle/Tacoma Intl - CUN Cancun

SEACUN

Seattle/Tacoma Intl

Tue 8/12

07:16-16:20

Nonstop6h 04m

Cancun

Wed 31/12

00:00-22:00

Nonstop0h 00m

£202

SeattleCancún

SEA Seattle/Tacoma Intl - CUN Cancun

SEACUN

Seattle/Tacoma Intl

Tue 15/12

07:16-16:20

Nonstop6h 04m

Cancun

Wed 31/12

00:00-22:00

Nonstop0h 00m

£202

SeattleCancún

SEA Seattle/Tacoma Intl - CUN Cancun

SEACUN

Seattle/Tacoma Intl

Sun 13/12

05:15-19:45

2 stops11h 30m

Cancun

Wed 31/12

00:00-22:00

Nonstop0h 00m

£205

SeattleCancún

SEA Seattle/Tacoma Intl - CUN Cancun

SEACUN

Seattle/Tacoma Intl

Mon 28/12

23:15-15:30

1 stop13h 15m

Cancun

Wed 31/12

00:00-22:00

Nonstop0h 00m

£205

SeattleCancún

SEA Seattle/Tacoma Intl - CUN Cancun

SEACUN

Seattle/Tacoma Intl

Mon 16/11

06:10-16:35

1 stop7h 25m

Cancun

Wed 31/12

00:00-22:00

Nonstop0h 00m

£213

SeattleCancún

SEA Seattle/Tacoma Intl - CUN Cancun

SEACUN

Seattle/Tacoma Intl

Thu 3/12

07:16-16:20

Nonstop6h 04m

Cancun

Wed 31/12

00:00-22:00

Nonstop0h 00m

£217

SeattleCancún

SEA Seattle/Tacoma Intl - CUN Cancun

SEACUN

Seattle/Tacoma Intl

Thu 4/2

07:15-16:20

Nonstop6h 05m

Cancun

Wed 31/12

00:00-22:00

Nonstop0h 00m

£217
Fastest return journey

SeattleCancún

SEA Seattle/Tacoma Intl - CUN Cancun

SEACUN

Seattle/Tacoma Intl

Fri 19/2

07:15-16:10

Nonstop5h 55m

Cancun

Wed 31/12

00:00-22:00

Nonstop0h 00m

£217

Flights are sorted by cheapest return flights first.

Deals found on 29/10

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Seattle to Cancún

Have a flexible travel schedule? Discover the best time to fly to Cancún from Seattle with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Cancún

How far ahead should I book a flight from Seattle to Cancún?

The best time to book flights from Seattle to Cancún is 58 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Cancún?

Currently, May is the cheapest month in which you can book a flight from Seattle to Cancún (average of £412). Flying from Seattle to Cancún in October is currently the most expensive (average of £567). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from Seattle to Cancún?

Airfare is below average for this route at the moment.

Seattle to Cancún flights typically cost between £365 and £630 in December.
The cheapest return price found within the last 5 days was £349 on Air Canada (3 Dec–10 Dec).

Related info for your journey

  • How popular is this Seattle to Cancún flight route?

    The Seattle/Tacoma Intl to Cancun flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Cancún?

    Airlines like Delta fly from Seattle to Cancún in about 6h 05m. The time it takes to get you to your destination is usually consistent. The distance between Seattle and Cancún is about 2683 mi. Generally, flights for this route are direct.

  • Can I find deals for flights from Seattle to Cancún that include hotel bookings?

    Yes. In addition to deals on Seattle to Cancún flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Cancún?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Cancún.

  • Can I find deals for business class flights from Seattle to Cancún?

    Yes. Cheapflights offers flight deals from Seattle to Cancún by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Cancún?

    Currently, May is the cheapest month in which you can book a flight from Seattle to Cancún (average of £412). Flying from Seattle to Cancún in October is currently the most expensive (average of £567). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Holbox

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

How does Cheapflights help users find flights from Seattle to Cancún?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Cancún from Seattle today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Seattle to Cancún?

Cheapflights helps you find that perfect flight to Cancún from Seattle by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Seattle to Cancún with no change fees?

Yes, we can. To see specific flights from Seattle to Cancún with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to Cancún become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.