SEA - CUN

C$ 231 Find Cheap Flights from Seattle to Cancún

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Cancún departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Cancún, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Cancún, as well as popular online travel agencies
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Cheap Flight Deals from Seattle to Cancún (SEA-CUN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Cancún that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Seattle to Cancún

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Seattle to Cancún.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:00 a.m. - 12:35 a.m.SEA-CUN
16h 35m2 stops
3:15 p.m. - 12:44 a.m.CUN-SEA
11h 29m1 stop
C$ 394
Find Deal
Tue, 6 May - Wed, 7 May
6:00 a.m. - 12:35 a.m.SEA-CUN
16h 35m2 stops
3:15 p.m. - 12:44 a.m.CUN-SEA
11h 29m1 stop
C$ 427
Find Deal
Tue, 6 May - Thu, 8 May
7:15 a.m. - 4:09 p.m.SEA-CUN
5h 54mdirect
4:10 p.m. - 8:55 p.m.CUN-SEA
6h 45mdirect
C$ 590Delta
Find Deal
Mon, 3 Mar - Mon, 10 Mar
5:00 a.m. - 3:50 p.m.SEA-CUN
7h 50m1 stop
4:20 p.m. - 11:01 p.m.CUN-SEA
9h 41m1 stop
C$ 610United Airlines
Find Deal
Thu, 6 Mar - Fri, 7 Mar
5:02 a.m. - 5:50 p.m.SEA-CUN
9h 48m2 stops
11:27 a.m. - 11:01 p.m.CUN-SEA
13h 34m1 stop
C$ 617United Airlines
Find Deal
Wed, 5 Mar - Mon, 10 Mar
7:00 a.m. - 4:00 p.m.SEA-CUN
6h 00mdirect
7:10 p.m. - 12:16 p.m.CUN-SEA
19h 06m2 stops
C$ 632Alaska Airlines
Find Deal
Mon, 3 Mar - Tue, 11 Mar
7:55 p.m. - 4:23 p.m.SEA-CUN
18h 28m1 stop
8:00 a.m. - 12:42 p.m.CUN-SEA
6h 42mdirect
C$ 634Alaska Airlines
Find Deal
Mon, 24 Mar - Thu, 27 Mar
10:55 p.m. - 12:25 p.m.SEA-CUN
10h 30m1 stop
4:10 p.m. - 8:55 p.m.CUN-SEA
6h 45mdirect
C$ 681Delta
Find Deal
Thu, 6 Mar - Mon, 10 Mar
9:24 a.m. - 10:44 p.m.SEA-CUN
10h 20m1 stop
5:19 p.m. - 9:14 p.m.CUN-SEA
6h 55mdirect
C$ 739Aeromexico
Find Deal
Thu, 27 Feb - Wed, 5 Mar
7:20 a.m. - 12:03 a.m.SEA-CUN
14h 43m2 stops
4:20 p.m. - 8:50 p.m.CUN-SEA
6h 30mdirect
C$ 794Aeromexico
Find Deal
Thu, 5 Jun - Mon, 9 Jun

Flights from Seattle to Cancún - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Cancún to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to Cancún?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Cancún, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Seattle to Cancún is September, where tickets cost C$ 656 (return) on average. On the other hand, the most expensive months are December and February, where the average cost of round-trip tickets is C$ 1,028 and C$ 916 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Cancún, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Seattle to Cancún, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low season

September

High season

April

Cheapest flight

C$ 231
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (7% more expensive on average)
Flight from Seattle to Cancun

When to book flights from Seattle to Cancún

Are your dates flexible? Find out the best times to travel from Seattle to Cancún based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Cancun

  • Are there nursing stations at Seattle-Tacoma?

    There are various nursing rooms throughout the Seattle-Tacoma International Airport. Mothers can enjoy some privacy and quiet time before boarding their flight to Cancun. You’ll find a nursing room in each concourse, by Gate A10, by A1 before entering Concourse B, C10, D3 and D11, S9, and across from N19. There are also companion care restrooms around the airport.

  • Do I need to exchange currency at Cancun International Airport (CUN)?

    You will need to exchange some USD for Mexican Pesos (MXN) to have cash for your trip to Cancun. This is possible to do upon your arrival at Cancun International Airport (CUN). There are currency exchange desks in the arrival halls of the terminals. For instance, there is a currency exchange location on Level 0 of Terminal 2, by Starbucks.

  • Are there any pet relief areas at Seattle-Tacoma (SEA)?

    For those traveling out of Seattle-Tacoma International Airport (SEA) with pets or service animals, visit one of the airport’s pet relief areas close to your departure gate. Here your pet can stretch its legs and relieve itself before the long flight to Cancun. You’ll find the relief areas in front of security Checkpoints 1 and 3 on the departure floor, and by the blue train station at Concourse S.

  • How can I get from Cancun International Airport to Downtown Cancun?

    If you don’t wish to get a taxi, it’s possible to book an airport bus that takes you to main areas like Downtown Cancun, Playa del Carmen, or Tulum. The Downtown Cancun bus departs from Terminals 2, 3, and 4. You can expect the ride to be about 35 minutes long and for it to cost around 133.70 MXN (6.80 USD). Other destinations such as Playa del Carmen may cost more, closer to 277.60 MXN (13.50 USD).

  • What is the cheapest flight from Seattle to Cancún?

    In the last 3 days, the lowest price for a flight from Seattle to Cancún was C$ 163 for a one-way ticket and C$ 278 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Cancun?

    Aeromexico, Alaska Airlines, Delta, Air Canada, and AeroMexico Connect offer inflight Wi-Fi service on the Seattle to Cancun flight route.

  • Which aircraft models fly most regularly from Seattle to Cancun?

    The Airbus A321neo is the aircraft model that flies most regularly on the Seattle to Cancun flight route.

  • Which airline alliances offer flights from Seattle to Cancun?

    SkyTeam, and oneworld are the airline alliances operating flights between Seattle and Cancun, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Seattle to Cancun?

    There are direct flights from Seattle to Cancun on a daily basis.

  • Which is the best airline for flights from Seattle to Cancún, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Seattle to Cancún are Alaska Airlines and Delta. With an average price for the route of C$ 751 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of C$ 686 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Seattle to Cancun?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Cancun.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Cancun?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cancun from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Cancun?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cancun with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Cancun?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cancun from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Seattle to Cancún

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 581 or less round-trip.
  • Although there are some direct routes from Seattle-Tacoma International Airport (SEA) to Cancun International Airport (CUN), they are generally more affordable with a layover in between. United Airlines makes a stop in Denver (DEN), while American Airlines stops in Dallas-Fort Worth (DFW).
  • If you’re renting a car from Cancun International Airport (CUN) the agencies are located in the airport surroundings. As you exit the arrival hall of your entry terminal, follow the indications for the car rental area, and pick up your car directly from the airport parking lot.
  • Decompress and relax before your long flight from Seattle to Cancun. At Seattle-Tacoma Airport there are spas you can enjoy before your boarding time. There’s a Getaway Spa near the Terminal’s Gate A5 and another by Gate C2.
  • Use the free SEA Underground when getting around Seattle-Tacoma International Airport (SEA), especially to Concourses N and S since they are only connected to the terminal by train. There are three train lines, yellow, green, and blue, that connect all the stations in the Terminal Concourses.
  • Cancun International Airport (CUN) is the best hub to fly into to visit some iconic destinations in the Riviera Maya. This airport serves top attractions like Tulum, the Playa del Carmen, and Playa Delfines.
See more tips

Prefer to fly direct from Seattle to Cancun?

Find which airlines fly direct from Seattle/Tacoma Intl Airport to Cancun Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Cancun

Monday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

Tuesday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

Wednesday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

Thursday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

Friday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

Saturday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

Sunday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

See more nonstop flights

Direct returns

Cancun to Seattle/Tacoma Intl

Monday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

Tuesday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

Wednesday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

Thursday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

Friday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

Saturday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

Sunday

Aeromexico,Alaska Airlines,Delta, +3 more

Aeromexico,Alaska Airlines, +4 more

See more nonstop flights
See more nonstop flights

Top 4 airlines serving from Seattle to Cancún

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Cancún. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Cancún? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9685 reviews
7.9Comfort
8.2Boarding
8.5Crew
7.1Entertainment
7.1Food
Airline reviews

I needed to board early and that was no problem. The snack was just ok. Alaska is an EXCELLENT airlines . . . luggage fast and easy.

10.0 ExcellentLeslie Page, Feb 2025SEA - LAX
Read more Alaska Airlines reviews

I needed to board early and that was no problem. The snack was just ok. Alaska is an EXCELLENT airlines . . . luggage fast and easy.

Couldn't access movies on the flight.not tech savvy Thought was free.

Alaska Airlines needs more bag tag kiosks and bag check-in stations in Seattle. A single entry point for the bag tag kiosks would be helpful. This alleviates lines forming at each individual kiosk, which causes traffic jams for people passing through.

They left my luggage behind in Seattle. However, they delivered it to my home the next morning.

The whole process was very smooth. My only complaint was finding out the evening before our flight that I had 20 hours left to purchase in flight food. Was not made aware of thus option prior to that alert and was too busy with other preparations to participate.

Alaska Airlines fraudulently listed this as a direct flight to Pittsburgh. We landed in Cleveland, waited an hour, then flew to PIT. No one was told about this. When I called and spoke with Alaskan Airways customer care, they were extremely unhelpful and lied about the direct flight. I have my receipt showing a direct flight. I am in the process of working with my credit card because Alaskan Airlines misrepresented the sale/service. I will never do business with Alaskan Airlines again.

You guys are always have delays and then leaving us on the tarmac for 15-20 min. FIGURE IT OUT!

Boarding was late with no communication. Flight was over an hour late with virtually no communication or updates. The app showed we had departed and were scheduled to arrive on time even though we sat on the tarmac for nearly an hour. People who were using the app to track our progress to pick us up were given erroneous information. Flight attendant was snooty when asked why app was showing us as delayed and arriving on time even though we had not left and ultimate’s not leave for over an hour. Just poor and arrogant.

It was raining and cold and we had to walk outside to board the plane. And to have yo stand outside to wait in line to board. It seems they could find another way to send a few people at a time so passengers are not outside in the elements. Then to not have my luggage show up at my finally destination. Not happy with the whole experience.

I would probably fly with them again. It was a smooth process.

Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a day.

Free Wi-Fi is good. That’s all - food mediocre, unfriendly crew, poor communication after trying to file a claim for my lost bag, which Delta didn’t even know was lost until I told them.

Most of my discomfort was going through TSA. However, the Delta seats had inadequate leg room and I tried my very best to connect to the wi-fi and it was a cumbersome process that finally gave me the info that I needed to sign in AFTER I had completed the flight...Why make it so difficult to use? That said I really really appreciate the pilot taking a little extra time to avoid a bad storm area and both landings in Atlanta and Orlando were flawless to my delight!!!

Bottom seat cushion is almost non existent. Very uncomfortable seat.

Typical flying experience in the US. Nothing particularly good or bad.

Coach seating is debilitating, neither my husband or I can walk the following day

It was NOT pleasant. Started from checking our luggage to the last time getting off the plane. The crew was not friendly, the food was horrible and the seats were too close to each other that I got a bruise on my knee.

Late departure due to large number of wheel chair patrons. Used to having a box of snacks to select from in comfort plus. The flight attendant just rattled off what was available and asked us to pick. Felt rushed and uncomfortable. Seat was great. Prefer having the screen on the seat in front of me instead of having to pull it up from the seat side. Lots of room for my carryon under the seat in front of me.

The flight was canceled two hours before departure, it took over five hours to rebook us on another flight.

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

Lousy No wheelchair. As normal at Atlanta Cheap airline Cheap aero plane. - Neither entertainment nor food on a 5 hour saga

The airplane was an old airplane, seats were very uncomfortable and very little space, they changed my seat and that was no option to get back into my seat even when I was traveling a senior who required assistance.

This is not a low cost airline. Stop acting like o e.

Aeromexico crew made me check my hand luggage in the door of the plane. As soon as I reach Mexico City, I notice that my luggage was opened and 8 games of Nintendo Switch were stolen (700 dllrs value aprox) (the console was there) but the games were stolen. I am very dissapointed of Aeromexico and all the crew. Instead of being a good trip, It was a sad trip

Ok. But we arrived to a remote terminal which meant that a bus had to take us to the terminal building

Old aircraft the audio of the entertainment dosent work Dirty seats

The plane was so outdated, that it made it uncomfortable. The temperature was hot during the whole flight

Happy attentive flight crew. All in all good flight the night flight works well. Getting into Mexico City early so you don't get caught up it all the immigration and custom ques, additionally, this helps when exiting the airport and crossing the city to your final destination. All works very well and would do it again

Some entertainment and food/snack service would have been nice

All the pessengers should be wait in a line útil the creo and piloto are arrived.

The tv monitor in front of my seat was not responding. The flight crew reset it and it still didn’t work.

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

Liked nothing. As per previous segment it was delay delay delay.

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Our seats were all the way in back of the plane,

Food choices were very limited. Taste of the dishes was average.

Maybe add a seat trade app for flyers that didn’t get seats together

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