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Cheap Flights from Seattle / Tacoma International to Cancun

Compare Seattle / Tacoma International to Cancun flight deals

Find the cheapest month or even day of the year to fly to Cancun

Book the best Cancun fare with no extra fees

Flight deals from Seattle / Tacoma International to Cancun

Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International to Cancun? Find the lowest prices on one-way and return tickets right here.
Cancun.R 2,785 per passenger.Departing Fri, 24 Oct.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Fri, 24 Oct, arriving in Cancun.Price includes taxes and charges.From R 2,785, select.
Cancun.R 2,896 per passenger.Departing Sun, 15 Feb.One-way flight with Aeromexico.Outbound indirect flight with Aeromexico, departs from Seattle / Tacoma International on Sun, 15 Feb, arriving in Cancun.Price includes taxes and charges.From R 2,896, select.
Cancun.R 2,899 per passenger.Departing Mon, 19 Jan.One-way flight with Aeromexico.Outbound indirect flight with Aeromexico, departs from Seattle / Tacoma International on Mon, 19 Jan, arriving in Cancun.Price includes taxes and charges.From R 2,899, select.
Cancun.R 2,932 per passenger.Departing Mon, 6 Oct.One-way flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departs from Seattle / Tacoma International on Mon, 6 Oct, arriving in Cancun.Price includes taxes and charges.From R 2,932, select.
Cancun.R 2,934 per passenger.Departing Mon, 19 Jan.One-way flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Mon, 19 Jan, arriving in Cancun.Price includes taxes and charges.From R 2,934, select.
Cancun.R 2,937 per passenger.Departing Tue, 10 Feb.One-way flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Tue, 10 Feb, arriving in Cancun.Price includes taxes and charges.From R 2,937, select.
Cancun.R 3,012 per passenger.Departing Sat, 1 Nov.One-way flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Sat, 1 Nov, arriving in Cancun.Price includes taxes and charges.From R 3,012, select.
Cancun.R 3,277 per passenger.Departing Sun, 7 Dec.One-way flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Sun, 7 Dec, arriving in Cancun.Price includes taxes and charges.From R 3,277, select.

Find the cheapest month to fly from Seattle / Tacoma International to Cancun

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle / Tacoma International to Cancun flights are currently cheapest in October.
Sep
from R 4,010
Oct
from R 2,785
Nov
from R 3,012
Dec
from R 3,277
Jan
from R 2,899
Feb
from R 2,896
Mar
from R 3,355
Apr
from R 3,971
May
from R 3,975
Jun
from R 3,979
Jul
Find prices
Aug
Find prices

Direct flights from Seattle / Tacoma International to Cancun

Seattle / Tacoma International to Cancun: Alternative routes

Compare routes from Seattle / Tacoma International to Cancun below. You may find an airport to fly into that's cheaper, faster, or easier than Cancun.

Seattle to Cancun: Flight information

The things to know before you go.
Cheapest flight foundR 2,785
Cheapest month to flyOctober
Average flight time5 hrs, 54 mins
Most popular airlineHawaiian Airlines
Average flights per week39

Finding cheap flights from Seattle / Tacoma International to Cancun: Frequently asked questions

The best price we found for a return flight from Seattle / Tacoma International to Cancun is R 6,222. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 54 minutes is the average flight time from Seattle / Tacoma International to Cancun.
Hawaiian Airlines, Alaska Airlines and Qatar Airways fly direct from Seattle / Tacoma International to Cancun.
As of September 2025, there are 39 flights per week flying from Seattle / Tacoma International to Cancun.
The cheapest month to fly from Seattle / Tacoma International to Cancun is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Seattle / Tacoma International Airport to Cancun Airport on Monday, 10 November 2025.
Yes – the average flight time is 5 hours and 54 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Cancun but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Cancun is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Volaris and Delta offer the cheapest flight tickets to Cancun.

Travelling from Seattle-Tacoma International Airport (SEA) to Cancun International Airport (CUN): what you need to know

  • The average duration of a direct flight from Seattle-Tacoma International Airport to Cancun International Airport is 5 hours 55 minutes.

  • The timezone in Cancun is UTC-5, which is two hours ahead of Seattle.

  • Each week, there are 19 Seattle-Tacoma International Airport to Cancun International Airport flights. To jet off early, go for the 07:00 Alaska Airlines flight. If you're eager to make the most of your time before flying, the last departure is at 22:40 with Alaska Airlines.

  • Your SEA to CUN flight won't wait if you're late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • During popular months like July, you'll want to get to the airport earlier than usual. Arrive two hours before a domestic departure and four hours ahead for international flights whenever you're flying during a high season in general.

  • Alaska Airlines is your gateway to discovering Cancun (and maybe even some other great parts of Mexico!). Check out the direct flights from Seattle-Tacoma International Airport to Cancun International Airport offered by this popular airline.

  • The airline that tops the list for bookings on this route is Alaska Airlines.

  • Alaska Airlines is the most punctual carrier offering SEA to CUN flights. A dependable 84.44% of its departures on this route land as scheduled.

  • If you want to include a stop along the way, just deselect 'Direct flights only' when searching for your ticket from Seattle-Tacoma International Airport to Cancun International Airport. Here are the top stopovers between SEA and CUN:

    • Denver International Airport

    • Dallas/Fort Worth International Airport

    • George Bush Intercontinental Airport

How to find the cheapest flights from Seattle-Tacoma International Airport (SEA) to Cancun International Airport (CUN)

  • The cheapest price we've found for a one-way Seattle-Tacoma International Airport to Cancun International Airport flight is R 2,785. A return fare is currently R 6,222. Depending on the availability when you book, these fares can change.

  • To score cheap tickets from SEA to CUN, reserve your trip six months before your departure date.

  • May is the cheapest month for flights from Seattle-Tacoma International Airport to Cancun International Airport. If you're looking to travel at a different time of year, the 'Whole month' tool will give you the lowest prices for each month.

  • Finding cheap flights from SEA to CUN is a piece of cake with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch when fares go down.

  • Choose your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Seattle-Tacoma International Airport to Cancun International Airport.

Handy information about Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport has a strong on-time record, so flight disruptions are less likely. Departures from SEA land at their destination as scheduled 81.27% of the time.

  • To reach Seattle-Tacoma International Airport from central Seattle, it'll take around 20 minutes by car. Of course, this depends on traffic conditions. It's approximately 23 kilometres from the airport to the city centre.

  • Taking public transport? Expect a journey time of around 55 minutes.

  • Have an early flight from Seattle-Tacoma International Airport to Cancun International Airport? Avoid the stress of rushing to the terminal (and get some extra shut-eye) by picking one of these hotels near SEA:

Arriving at Cancun International Airport (CUN)

  • Reserve a hotel close to CUN if you're catching a late Seattle-Tacoma International Airport to Cancun International Airport flight. Choose one of these accommodation options and skip the long transfer after landing:

  • Get on the fast track to adventure by picking up a Cancun International Airport rental car. Grab your wheels from MEX, America or Europcar and explore beyond Cancun's main sights.

  • Lock in the best possible rate by booking your vehicle from Cancun International Airport about three weeks before your trip.

Getting from Cancun International Airport (CUN) to central Cancun

  • Cancun International Airport to the centre of Cancun has a drive time of around 25 minutes. It's approximately 19 kilometres away.

When to fly to Cancun International Airport (CUN)

  • It's time to pick your travel dates for your flight from Seattle-Tacoma International Airport to Cancun International Airport. July is the busiest month to visit Cancun. If you prefer a more low-key vibe, go in May.

  • Book your flight from Seattle-Tacoma International Airport to Cancun International Airport for August if you want to explore Cancun during its warmest month. You can expect temperatures of between 26ºC (79ºF) and 32ºC (90ºF).

  • If you want cooler conditions, look for a cheap ticket from SEA to CUN in January. Temperatures average between 20ºC (68ºF) and 27ºC (81ºF) then.

Explore more of Mexico

  • You've done Cancun, now it's time to explore other corners of Mexico. Journey around 290 kilometres west to Merida to tick off its top sights. From P. ANDADOR NVA. CHICHEN ITZA to Pre Hispanic Town Of Uxmal and El Palacio de Gobierno, you'll have a packed itinerary ahead.

  • If you're eager to discover another side of Mexico, consider Campeche, about 418 kilometres west of Cancun. Campeche Waterfront Promenade, Zona Arquelogica Edzna and Centro Historico de San Francisco de Campeche are key reasons to visit.

Plan the rest of your trip from Seattle to Cancun

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.