SEA - CUN

$131 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 4/20. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Cancún

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Cancún.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Cancún.
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Everything you should know

Cheapest round-trip
$360
Typical prices: $674-$451
Frontier
Tue 6/16Tue 6/23
SEA - CUN • 1 stop
Cheapest non-stop
$449
Typical prices: $762-$481
Delta
Wed 4/29Tue 5/5
SEA - CUN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Alaska Airlines' Wine Flies Free program is a perk.
Immigration at Cancun is quick with automated checks.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $360 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with Alaska Airlines and Delta. Average duration is 5h 57m
Direct flights
Direct flights
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Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $452 (round-trip)
Shortest trip • 8h 00m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 13% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 17% price drop
Most popular
Good to know
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+1
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We hope you love your trip to Cancún!
Flight Deals
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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, Jun 16 - Tue, Jun 23
Frontier Logo
7:41 pm - 12:48 pm
SEA
-
CUN
15h 07m
1 stop
Frontier Logo
3:35 pm - 9:48 am
CUN
-
SEA
20h 13m
1 stop
$360Frontier
Tue, Apr 21 - Tue, Apr 28
Volaris Logo
11:00 pm - 3:28 pm
SEA
-
CUN
14h 28m
1 stop
Volaris Logo
10:40 am - 7:49 pm
CUN
-
SEA
11h 09m
1 stop
$375Volaris
Sat, Jul 4 - Thu, Jul 9
Frontier Logo
7:41 pm - 12:08 pm
SEA
-
CUN
14h 27m
1 stop
Frontier Logo
3:35 pm - 9:48 am
CUN
-
SEA
20h 13m
1 stop
$380Frontier
Wed, Aug 12 - Mon, Aug 17
Frontier Logo
7:41 pm - 12:08 pm
SEA
-
CUN
14h 27m
1 stop
Frontier Logo
3:35 pm - 2:04 pm
CUN
-
SEA
24h 29m
1 stop
$383Frontier
Tue, Jul 7 - Tue, Jul 14
Volaris Logo
11:00 pm - 11:54 am
SEA
-
CUN
10h 54m
1 stop
Volaris Logo
12:43 pm - 7:49 pm
CUN
-
SEA
9h 06m
1 stop
$384Volaris
Thu, Jun 18 - Thu, Jun 25
Frontier Logo
3:19 pm - 12:08 pm
SEA
-
CUN
18h 49m
1 stop
Frontier Logo
3:35 pm - 9:48 am
CUN
-
SEA
20h 13m
1 stop
$386Frontier
Tue, Jul 7 - Sun, Jul 19
Frontier Logo
7:41 pm - 12:08 pm
SEA
-
CUN
14h 27m
1 stop
Frontier Logo
3:35 pm - 9:48 am
CUN
-
SEA
20h 13m
1 stop
$388Frontier
Tue, Jun 23 - Sun, Jun 28
Frontier Logo
7:41 pm - 12:08 pm
SEA
-
CUN
14h 27m
1 stop
Frontier Logo
3:35 pm - 9:48 am
CUN
-
SEA
20h 13m
1 stop
$389Frontier
Thu, Jul 16 - Sat, Jul 25
Frontier Logo
7:41 pm - 12:08 pm
SEA
-
CUN
14h 27m
1 stop
Frontier Logo
3:35 pm - 9:48 am
CUN
-
SEA
20h 13m
1 stop
$390Frontier
Sat, Apr 25 - Wed, Apr 29
Frontier Logo
7:12 pm - 2:56 pm
SEA
-
CUN
17h 44m
2 stops
Frontier Logo
1:52 pm - 7:52 pm
CUN
-
SEA
32h 00m
2 stops
$391Frontier
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 June.

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 Monday 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 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 $455 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $715 and $653 respectively.

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

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $496 on average.

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 4 weeks before departure, which saves you about 13% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 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$131
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 30% 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

  • 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 $131 for a one-way ticket and $360 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?

    JetBlue, Alaska Airlines, Delta, and Aeromexico 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.

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

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to Cancún are Southwest and Delta. With an average price for the route of $619 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $581 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 Cancún

  • Looking for a cheap flight? 25% of our users found flights on this route for $319 or less one-way and $480 or less round-trip.

Prefer to fly direct from Seattle to Cancun?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl 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

Alaska Airlines,Delta

Alaska Airlines,Delta

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta

Alaska Airlines,Delta

Saturday

Alaska Airlines,Delta

Alaska Airlines,Delta

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more direct flights

Direct returns

Cancun to Seattle/Tacoma Intl

Monday

Alaska Airlines,Delta

Alaska Airlines,Delta

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta

Alaska Airlines,Delta

Saturday

Alaska Airlines,Delta

Alaska Airlines,Delta

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more direct flights

Reviews of the top 5 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.
7.9
Alaska AirlinesOverall score based on 12197 reviews
7.0Entertainment
7.8Comfort
8.5Crew
8.1Boarding
7.0Food
Airline reviews

Flight crew great! No WiFi not great. Someone took my bag not great!

2.0 MediocreBenjamin, Apr 2026
SEA - DFW
Read more Alaska Airlines reviews

Flight crew great! No WiFi not great. Someone took my bag not great!

Alaska Airlines staff go out of their way to accommodate my fragile musical instrument, every time. They are unlike any other airline. I've experienced this can-do attitude on several flights with different staff, so this must be the culture of their company. I appreciate Alaska!

We never had an experience on Alaska Airlines. We missed our flight .

Flight was on time departure & arrival. Staff was efficient & attentive. Food was better than normal. Wish they had some sort of entertainment screens loke Delta. I would fly Alaska again though.

It was a bumpy flight but the crew was very attentive and made it a safe and enjoyable experience.

Very easy, stress free airline. Was a wonderful experience. Will use again

The final trip home wasn’t as bad as the trip there. Even with the paid upgrade the comfort level was mediocre at best.

I paid $129 to be upgraded to better seat only ti be completely ignored by flight attendants I think because I used the front restroom ???? I was dozing off and on but I was never once offered a beverage or snack but my seat mates were served numerous double vodkas. I want my money back. I tried to call Alaska Airlines complaints phone number and was told it was 2.5 hours to hold.

Don’t fly with Alaska if you have a layover in Seattle. Guaranteed to screw you over. We waited at terminal S3 &were >2 hours delayed(mechanical issues)and told to change terminals to a different plane that required riding 3 shuttles to get to new terminal N14. Then they delayed the flight even further and changed gates again. when I went to the customer service in terminal N, the manager turned me away without apologizing & refused to assist me but mandated I leave her alone as her shift is nearly finished and insisted I totake another 2 shuttles to terminal C so I can just talk to another service rep while dragging my family of 4/ kids in tow.

i canceled my flight from SEA to SFO, SNA to SEA and received full refund from Alaska Airlines. i am pleased with the customer service.

Snacks and included beverages were appreciated. Boarding went smoothly. Plenty of overhead bin space. Seats get very uncomfortable after a couple of hours. After waiting 10 painful minutes for my walker, a very nice Delta guest agent pushed me in a wheelchair to the gate. It was finally delivered to me after another 15 minutes . Our checked bag was on the carousel long b4 I was able to retrieve it. Fortunately it was still there but somewhere along the way the straps we used to secure it were removed and and were not reattached. Wish I had made note of the agents name.

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

The cabin temperature was nice and cool. The wifi was not working.

With Aeromexico it ended up good but with Delta it was bad because we did everything through Delta... Showed up at the Delta terminal... It was the wrong place! Nothing ever told us to go to the Aeromexico terminal. It said "in partnership with Aeromexico" but I was never instructed to check in with them or go to their terminal. We had to haul @$$ running through the airport and almost didn't make it thanks to this poor communication. 👎🏽

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

First flight out and was 85 minutes delayed. Notification came out way too late

Excellent!!! Aeromexico is a great airline. What was not that good is the service provided by Kayak. It is never clear and not easy to manage.

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

All went very well. We used the AIFI Airport, such a lovely facility. Definitely needs better transportation options to get there.

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.

Really nice, all good, nice crew and all on time

Unfortunately I had an awful boarding experience. Our first flight with Aeromexico was fine and landed on time however it couldn’t find a gate and we were late which made us lose our connecting flight with Aeromexico. The staff handled it horribly when we explained our situation and would not led us board when we missed the boarding time by a couple minutes. The staff were extremely rude and did not attempt to even help us. Because of this incident, my husband and I missed a full day of work which negatively impacted our salary which we need. Please compensate us for the work that we missed.

It was OK. The flight is pretty long for the airlines to only offer a simple sandwich on business class. The entertainment is similar to that on other Skyteam members. Ultimately the airline lost my bag and didn’t deliver it to me until the next day after a lengthy lost baggage report.

Good, the flight from Miami to Mexico City was better than Mexico City to Miami

Aeroméxico cancelled my ticket without advice AND It make a last minute mess in my intinerary, no solving my situation, bad advice and bad customer service

Flight was on time, good service, but there was no free WiFi, even for first class passengers

It was good in general. The Crew during the flight were very nice at all times.

All good flight was 35 minutes early when arriving in Edinburgh

Flights were on time actually early service was good and crew cheerful

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

The boarding timing needs to be improved. The flight was delayed again because it took way too long to board. I was already exhausted from sleeping at the airport and spending all day there due to delay from my previous flight that connected in Chicago.

I had a terrible experience. My flight got delayed from Atlanta to Chicago on Monday April 6, 2026, and that led to me missing my next flight to Brussels. United Airlines didn’t provide me with any accommodation for shelter. I had to sleep at the airport in Chicago. The next flight I was put on didn’t leave until the evening hours of Tuesday 4/7/2026.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Flight left on time, arrived early, pleasant staff provided water, coffee, etc. access to bathrooms was reasonable and were well maintained. blankets were available, lots of entertainment options. LUGGAGE SERVICE WAS GREAT. I got my one checked bag quickly and was able to make a bus connection for a 2 hour bus ride saving me from waiting another 1.5 hours.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

The flight was officially delayed 3 times, and was actually later than that. Combined, it was a 3 hour delay, but there was no recognition (miles, voucher, etc). The crew seemed stressed. The captain sounded nervous in his announcements. The flight itself was smooth and uneventful.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

I'm not sure American is capable of on-time arrivals and departures. When you land at ORD, you almost always get held on the tarmac because your gate is still occupied. I may have missed my connection, but that ended up up being significantly delayed as well. Once again, I finally got home well after midnight.

Same plane as RDU to LGA — internet not working. Pilot issue of some sort at end of prior flight - I was on same plane for my connection. Late/delayed —

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

Message about flight cancelation was received late due to being in the air. No explanation, just canceled and booked on morning flight. We had to stay in the airport overnight because there was no transportation offered to get to the hotel that AA had available. Actual inflight was fine.

I didn't go from Reno to Phoenix I ended up going from Reno to Dallas to Tucson because my flight rebooked because my Amtrak was late I tried notifying you guys I also don't know what you ask me about my flight because you guys didn't book my flight

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Bag drop was very disorganized in Miami. All main cabin passengers were shunted to just a few lanes and they had an equal number of lanes for first class passengers but there was nobody on those lines. They did nothing to bring the main cab and passengers over to the open lines and they just had employees standing there and doing nothing

there are no options s for snack besides cookies would ve nice to have a salty option n

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

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

Information on your arrival and departure airports