SEA - CUN

$130 Find Cheap Flights from Seattle to Cancun - Compare and Save

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 7/20. 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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Everything you should know

Cheapest round-trip
$347
Typical prices: $354-$617
Multiple Airlines
Tue 9/1Tue 9/8
SEA - CUN • 2 stops
Cheapest non-stop
$634
Typical prices: $530-$1,046
Delta
Tue 12/1Wed 12/9
SEA - CUN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Delta offers free Wi-Fi for SkyMiles members on most domestic flights.
At Seattle, SEA Spot Saver gives free expedited security screening before departure.
Expert advice
Expert advice
Expert advice
Expert advice
Top layover airports
Cheapest • Avg $447 (round-trip)
Shortest trip • 7h 56m (one-way)
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 8% compared to booking last minute.
Insights
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Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
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Flight Deals

Cheap Flights 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Cancún

Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
7:07 pm - 11:58 pm
SEA
-
CUN
26h 51m
2 stops
Multiple Airlines Logo
10:40 am - 7:59 pm
CUN
-
SEA
11h 19m
1 stop
$347Multiple Airlines
Thu, Sep 24 - Wed, Sep 30
Multiple Airlines Logo
7:00 am - 11:58 pm
SEA
-
CUN
14h 58m
2 stops
Multiple Airlines Logo
12:49 pm - 7:59 pm
CUN
-
SEA
9h 10m
1 stop
$357Multiple Airlines
Sat, Aug 22 - Sat, Aug 29
Volaris Logo
11:00 pm - 12:04 pm
SEA
-
CUN
11h 04m
1 stop
Volaris Logo
10:40 am - 7:59 pm
CUN
-
SEA
11h 19m
1 stop
$366Volaris
Wed, Sep 23 - Wed, Sep 30
Multiple Airlines Logo
7:00 am - 11:58 pm
SEA
-
CUN
14h 58m
2 stops
Multiple Airlines Logo
12:49 pm - 7:59 pm
CUN
-
SEA
9h 10m
1 stop
$370Multiple Airlines
Sat, Oct 10 - Sat, Oct 17
Multiple Airlines Logo
7:41 pm - 11:58 pm
SEA
-
CUN
26h 17m
2 stops
Multiple Airlines Logo
10:40 am - 7:59 pm
CUN
-
SEA
11h 19m
1 stop
$371Multiple Airlines
Thu, Sep 24 - Thu, Oct 1
Multiple Airlines Logo
7:00 am - 11:58 pm
SEA
-
CUN
14h 58m
2 stops
Multiple Airlines Logo
10:40 am - 7:59 pm
CUN
-
SEA
11h 19m
1 stop
$373Multiple Airlines
Sat, Aug 22 - Sat, Aug 29
Volaris Logo
11:00 pm - 3:28 pm
SEA
-
CUN
14h 28m
1 stop
Volaris Logo
10:40 am - 7:59 pm
CUN
-
SEA
11h 19m
1 stop
$374Volaris
Wed, Aug 19 - Wed, Aug 26
Volaris Logo
11:00 pm - 3:28 pm
SEA
-
CUN
14h 28m
1 stop
Volaris Logo
10:40 am - 7:59 pm
CUN
-
SEA
11h 19m
1 stop
$375Volaris
Thu, Aug 27 - Mon, Aug 31
Multiple Airlines Logo
11:00 pm - 3:28 pm
SEA
-
CUN
14h 28m
1 stop
Multiple Airlines Logo
10:40 am - 9:19 am
CUN
-
SEA
24h 39m
2 stops
$377Multiple Airlines
Tue, Aug 25 - Tue, Sep 1
Multiple Airlines Logo
11:00 pm - 12:04 pm
SEA
-
CUN
11h 04m
1 stop
Multiple Airlines Logo
6:04 am - 10:39 am
CUN
-
SEA
30h 35m
2 stops
$379Multiple Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Cancún flights

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.

How much is a round-trip flight from Seattle to Cancún?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Cancún departing in September.

What’s the cheapest day of the week to fly from Seattle to Cancun?

The average price of all round-trip flights from Seattle to Cancún clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Cancun on a Wednesday and more expensive on a Saturday. On your return trip to Seattle, you should consider flying back on a Saturday, and avoid Tuesdays for better deals.

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

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 Cancun is September, where tickets cost $467 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $710 and $668 respectively.

Can I save money by flying with a layover from Seattle to Cancun?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $602, prices are generally cheapest when you fly direct.

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

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 Cancun, you should book around 3 weeks before departure, which saves you about 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Expert advice

Expert advice for your flight from Seattle to Cancún

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines and SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Brandon Schultz

Brandon Schultz

Expert on CUN

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Good to know

Low seasonSeptember
Cheapest flight$130
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 23% increase in price.
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 Cancun?

    In the last 5 days, the lowest price for a flight from Seattle to Cancun was $127 for a one-way ticket and $347 for a round-trip.

  • Do I need a passport to fly between Seattle and Cancun?

    A passport is required to fly from Seattle to Cancun.

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

    Delta, Aeromexico, JetBlue, and Alaska Airlines 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?

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to Cancun are Southwest and Alaska Airlines. With an average price for the route of $685 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $689 and an overall rating of 7.9.

  • 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. Booking your flights between Seattle and CUN can sometimes prove cheaper using this method.

  • 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.

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $402 or less one-way and $698 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.

Reviews of the top 5 airlines serving from Seattle to Cancún

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Cancun. 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.
7.9
Alaska AirlinesOverall score based on 12654 reviews
8.1Boarding
7.1Food
7.8Comfort
8.5Crew
7.0Entertainment
Airline reviews

A smooth flight; a little cold on the ground and then suddenly heated when in the air; legroom on the 737-800 worse than on the outgoing flight, on 737-900. Much prefer flying Alaska to the northwest than flying American anywhere!

10.0 ExcellentAnonymous, Jul 2026
SEA - DFW
Read more Alaska Airlines reviews

A smooth flight; a little cold on the ground and then suddenly heated when in the air; legroom on the 737-800 worse than on the outgoing flight, on 737-900. Much prefer flying Alaska to the northwest than flying American anywhere!

The flight was canceled and dumped everyone in Albany. I still haven’t received reimbursement for transportation for getting to NYC or appropriate compensation for the cancelled flight.

My experience was significantly impacted by problems in Seattle with luggage check-in. Apparently, Alaska Air was significantly understaffed in this area for the number of passengers for that morning or they had issues with the machinery processing and loading the baggage. Upon tagging my suitcase, I was sent from one drop-off area to another and yet a third on a different floor. The line to do most of this was VERY long and moved quite slowly at first--I just barely made it on time to catch my flight even. though I arrived at the airport an hour and 40 minutes early. Then when I arrived in Charleston, my bag didn't arrive on the carousel with other luggage and I had to spend extra time tracking it down.. The relative who helped me out at SEATAC said he had never seen the airport so backed up and he travels out of that airport frequently. It was a very stressful experience, and very disappointing.

NO ENTERTAINMENT OR WIFI OR FOOD. ONLY WATER TO DRINK AND SPICY PRESTLES TO TAL CHAEOS AT CHECKIN

Boarding was smooth, the crew was kind and friendly, and even though we were in the Saver class, the seats were generous enough for my daughter to nap on me and I had enough room to recline and sleep for our overnight flight. If I had stayed awake I might have quibbled with the lack of a true meal, but the snacks worked for me and when my daughter was hungry (as she did NOT sleep), the crew took care of her. There was room for all of our bags on a very full flight, which was nice. It has been awhile since I haven’t checked a bag, so I had worried.

Overall, it was a good flight. My only quip- they made us check our carry on bags when there was plenty of overhead space left. My wife and I thought maybe the aircraft was really full, but that wasn’t the case. There were a number of open seats, and even more overhead compartments with no luggage. A minor annoyance, sure, but when we intentionally didn’t check luggage to make it easier, it was disappointing to have to do it anyways.

You guys did great, the only thing keeping me from the higher rating is the physical dimensions of the seats, which staff has no control over. Keep up the good job.

I had to gate check my luggage and it was a pleasant experience as I never done that procedure before. Everything went smoothly.

The flight was comfortable and attendants were nice but the snacks could have been better.

Flight was delayed causing a chain of events here in Cancun

Everything worked smoothly, never had a concern with the flight from start to finish.

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Crew was nice, meal was good. Entertainment had to be rebooted 3 times and still did not work. Turns out there was residue on screen, it needed to be cleaned to prevent the touchscreen buttons from continuously activating. I had entertainment for the last 45 minutes of a 5 hour 45 minute flight. Really unacceptable for first class. Flight attendent indicated your cleaning solution creates this problem. Seems as if this is widely known, you should be using a different product or cleaning better. Really really disappointing which simply added to the wi fi on your planes with reliably never ever works.

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.

Everything went smoothly. I didn’t like that when I booked in the main cabin my wife and I weren’t seated together. One would think when booking on an option that allows picking your seat. They would put you and your travel partner together. Had to call to get it sorted. They did fix.

Keep us informed of delays in a more timely manner

Caroline (Supervisor) was great! Salute to the employees like her!

Both ground crew and flight crew were rude, and did not provide any level of service. They made it very difficult as we were traveling with a passenger the required assistance.

From the check-in, to the flight, and arriving, everything went very smoothly. Unfortunately, when I received my baggage it was severely damaged. I have a hard shelled suitcase and it was completely smashed it. I’m not sure how this could happened but I am extremely disappointed that my belongings were damaged beyond repair and continued use.

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

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

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.

Planes seat could be bigger very uncomfortable for tall humans.

1 hour waiting for suitcases to come out traveling in business class and food in business class is a sandwich? Avoid Aeromexico .

Newer plane with large seats. No meal, but snacks were plentiful. Inflight entertainment was good but movies were dated.

No space reserved for anyone who didn’t have underseat in front of them. Made it inconvenient to get the backs secured. No inflight entertainment in the 190. Bring your own! Food was excellent and we were surprised to get a full breakfast.

Broke my luggage and I can't get a resolution yet.

There were no TV screens - even in Business class. 5 delays, and only given $12 meal voucher! Terrible!

Flight was delayed again and again ultimately almost three hours getting us to our location at close to midnight by the time we got in and out of airport to destination. I had taken time off work to enjoy an evening at destination and that was now wasted

No food/snack served during the flight. Crew wasn’t interested at all. Flew American First but flying low cost with Ryanair is even better

The flight was good. The only reason I did not say “excellent” was the delay

They could have done a better job announcing the boarding groups and asked for more drinks (water) if needed.

Ac was broken so we deplaned, waited 2 hours, taxiing for takeoff they said the plane would not fly so we went back to the gate and got a new plane which took another hour. In all a 4 hour delay for an 80 min flight.

We were delayed bc ground crew gave the flight crew the wrong paperwork. We taxiied to the runway then back to the gate to get the correct paperwork that no one bothered reviewing the first time we pushed back. Boarding was rude and stressful like it always is. Gate agents and flight attendants are all over 55 years of age, embittered by years of underpayment From AA leading to their passive agressive bitchiness for no reason.

Boarding time was easy & quick. Crew was excellent. In-flight entertainment was great/easy. Seats are too small and not enough room between rows: felt like a sardine/very cramped.

Ground crew forced me to double pay for infant international charges, when I complained about this and told them, with proof, I already paid they threaten to not allow me on the plane because I was “being rude”. Horrible ground management, horrible airline.

Overall a good red eye. Crew chatted very loudly the whole time making it difficult to sleep.

The fly was 2 hours delayed and the plane was old and dirty. A very umcorfotable flight, which I won't recomend to anyone

Confusion over extra fees. Held up on ramp during boarding. Thin seat cushion. Minimal leg room.

The check-in is either at a kiosk that didn’t allow me to check-in because my middle name was not on the reservation or at an agent that cost $15.

They don’t give anything for free you have to pay for everything which it’s expected but at least give out water and a snack as a courtesy for flying with them.

The app doesn’t work. I am having a lot of trouble checking in for flight tomorrow. Very disconcerting. Then they es t to charge extra for checking in at the airport;(

Overall good flight. The flight attendants were annoying and unfriendly. They would ask me to grab someone else’s trash can just waiting until the person woke up or after the flight is done. It’s not my job to pick up someone else’s trash. Especially when it’s not easily reachable.

To many extra fees, poor customer service and very uncomfortable flight. No leg room and seat wont recline.

Delayed 2 hours. Boarding line took more than 30 minutes. Flight was really hot and made sleeping on a red eye impossible. Not a pleasant experience.

Viva Aerobus Is honesto the worst airline and I don't think I'll fly with them ever again.

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

Information on your arrival and departure airports