SEA - CUN

C$ 220 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 28/5. 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.
1 adult

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, 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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Expert advice
Useful Info
Flights Deals

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Cancún.
Discover the best prices for you by selecting your travel dates on KAYAK.
Delta Logo
7:12 a.m. - 3:00 p.m.SEA-CUN
5h 48mdirect
Delta Logo
4:15 p.m. - 8:53 p.m.CUN-SEA
6h 38mdirect
C$ 473Delta
Find Deal
Wed, 4 Jun - Wed, 11 Jun
United Airlines Logo
6:25 a.m. - 4:50 p.m.SEA-CUN
8h 25m1 stop
United Airlines Logo
5:01 p.m. - 12:59 a.m.CUN-SEA
9h 58m1 stop
C$ 494United Airlines
Find Deal
Tue, 27 May - Tue, 3 Jun
Delta Logo
9:30 a.m. - 12:27 a.m.SEA-CUN
12h 57m1 stop
Delta Logo
4:15 p.m. - 8:53 p.m.CUN-SEA
6h 38mdirect
C$ 529Delta
Find Deal
Wed, 4 Jun - Wed, 11 Jun
JetBlue Logo
10:40 p.m. - 2:35 p.m.SEA-CUN
13h 55m1 stop
JetBlue Logo
11:08 a.m. - 8:54 p.m.CUN-SEA
11h 46m1 stop
C$ 682JetBlue
Find Deal
Sat, 31 May - Tue, 3 Jun
Aeromexico Logo
11:59 p.m. - 6:30 p.m.SEA-CUN
16h 31m2 stops
Aeromexico Logo
4:10 p.m. - 10:23 p.m.CUN-SEA
8h 13m1 stop
C$ 693Aeromexico
Find Deal
Fri, 8 Aug - Mon, 18 Aug
Alaska Airlines Logo
4:59 p.m. - 3:15 p.m.SEA-CUN
20h 16m2 stops
Alaska Airlines Logo
4:25 p.m. - 5:10 p.m.CUN-SEA
26h 45m2 stops
C$ 706Alaska Airlines
Find Deal
Sun, 10 Aug - Fri, 15 Aug
Aeromexico Logo
10:15 a.m. - 1:42 a.m.SEA-CUN
13h 27m2 stops
Aeromexico Logo
6:01 a.m. - 8:22 p.m.CUN-SEA
16h 21m2 stops
C$ 735Aeromexico
Find Deal
Fri, 8 Aug - Mon, 18 Aug
Alaska Airlines Logo
3:42 p.m. - 3:15 p.m.SEA-CUN
21h 33m2 stops
Alaska Airlines Logo
4:25 p.m. - 8:45 a.m.CUN-SEA
18h 20m2 stops
C$ 739Alaska Airlines
Find Deal
Mon, 7 Jul - Thu, 10 Jul
Hawaiian Airlines Logo
9:05 a.m. - 5:05 p.m.SEA-CUN
6h 00mdirect
Hawaiian Airlines Logo
7:25 p.m. - 11:00 a.m.CUN-SEA
18h 35m1 stop
C$ 789Hawaiian Airlines
Find Deal
Thu, 23 Oct - Sun, 9 Nov
Hawaiian Airlines Logo
6:52 p.m. - 3:15 p.m.SEA-CUN
18h 23m1 stop
Hawaiian Airlines Logo
4:25 p.m. - 9:36 p.m.CUN-SEA
31h 11m1 stop
C$ 1,069Hawaiian Airlines
Find Deal
Tue, 27 May - Fri, 30 May
Expert advice

Expert advice for your flight from Seattle to Cancún

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are specific to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Alaska Airlines

Alaska Airlines offers a 20-minute baggage guarantee for timely luggage delivery.


Alaska Airlines' Wine Flies Free program allows free wine check-in from select US airports.

Aeromexico

AM Plus offers priority check-in, boarding, and luggage with discounted lounge access.


Aeromexico's Wi-Fi is fast enough for streaming and offers free text messaging.

Delta

Delta offers free Wi-Fi for SkyMiles members on domestic flights.


Delta's Sky Priority check-in serves premium cabin and elite status passengers.

Read more about Deltaby Stefanie Waldek
Airports
SEA

Use the SEA Spot Saver for expedited security screening. Book online or via the flySEA app for a smoother departure.

Read more about SEAby Harriet Baskas
CUN

Expect quick immigration at CUN due to recent renovations. Automated passport checks reduce wait times to 5–15 minutes.

Read more about CUNby Brandon Schultz
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines and SEA

Harriet Baskas

Harriet Baskas

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.

Read more
Marisa Garcia

Marisa Garcia

Expert on Aeromexico

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek

Stefanie Waldek

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.

Read more
Brandon Schultz

Brandon Schultz

Expert on CUN

Brandon Schultz

Brandon Schultz

Brandon travels every week and makes friends with stray cats wherever he goes. Dogs, too... he once brought one home to the US from the Amalfi Coast. He’s written 6 books, visited 6 continents (still waiting on Antarctica), and would eat ice cream 6 times a day if he could. He lives in Brooklyn, New York, with his partner and three cats.

Read more
Useful Info

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.

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$ 673 (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$ 1,026 and C$ 900 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.


Good to know

Low seasonSeptember
High seasonDecember
Cheapest flightC$ 220
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (26% 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

  • 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$ 159 for a one-way ticket and C$ 342 for a round-trip.

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

    Alaska Airlines, Aeromexico, 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$ 758 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$ 740 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.

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$ 688 or less round-trip.

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, +2 more

Aeromexico,Alaska Airlines, +3 more

Tuesday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 more

Wednesday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 more

Thursday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 more

Friday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 more

Saturday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 more

Sunday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 more

See more nonstop flights

Direct returns

Cancun to Seattle/Tacoma Intl

Monday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 more

Tuesday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 more

Wednesday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 more

Thursday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 more

Friday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 more

Saturday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 more

Sunday

Aeromexico,Alaska Airlines,Delta, +2 more

Aeromexico,Alaska Airlines, +3 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 9968 reviews
7.1Food
8.5Crew
7.1Entertainment
8.2Boarding
7.9Comfort
Airline reviews

I made a mistake. Read what I wrote in the flight from Dulles to SEA. The negative experience was from SEA to BOI. Total garbage. Wont do it again.

2.0 MediocreAnonymous, Apr 2025SEA - BOI
Read more Alaska Airlines reviews

I made a mistake. Read what I wrote in the flight from Dulles to SEA. The negative experience was from SEA to BOI. Total garbage. Wont do it again.

Need to get on train for second flight it’s much nicer when all the gates are together for obvious reasons

Cramped, crowded aircraft. Poorly organized boarding. Tasteless crackers to eat. 40 minutes late. A standard US air travel experience.

Would not mind having movie options an available like Delta, but is not necessary. Did not have food, so cannot appropriately rate that section.

Three hour flight so snacks and basic drinks unless you pre buy as usual. Didn’t do my emtertainment as was tired after 23 hours of travel. You have to use your own device on US flights if travelers aren’t aware so if you only use your cell phone that can be small. Crew are great.

Awful. We got the last seats and they don't recline. We've been on this horrible journey since 6am and won't get to our destination almost a full day later. Oh and no food, either. Never again.

An uneventful flight is a good experience although one of the pilots gauges wasn’t working right so we had a half hour delay—no one can foresee that.

Plane was delayed and got me in past bedtime. But more importantly, my tsa precheck number wasn’t on my ticket so had to deal with the general line. Oh well, guess the delay helped that situation.

It was as good as flying can be, which is still very uncomfortable. Clean new aircraft, great crew.

The second leg of my trip left without me despite being my inbound transfer only a few minutes late. My friends told the gate agent and they closed the doors and left early anyway. Then they tried to rebook me on a flight SIX hours later which only changed when I got a supervisor to make it 4 hours later. The gate agent was nasty, unhelpful, and walked away from me.

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please

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.

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.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Electric plugs didn't work. Entertainment system wasn't working

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.