HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cancún

$117+ Cheap flights from Seattle (SEA) to Cancún (CUN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CUN
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Seattle to Cancún with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Cancun are usually found in September or October, booked 65 days in advance, depart on a Monday or Tuesday and return on a Friday

Find flight deals from Seattle to Cancún

Cheapest flights from Seattle to Cancún
Explore the most affordable flight options available from Seattle to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1410:51 amSEA - CUN
2 stops21h 45mMultiple Airlines
Sun 12/214:58 pmCUN - SEA
1 stop22h 32mMultiple Airlines
Deal found 11/11$349
This Kiwi.com deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2312:46 pmSEA - CUN
1 stop25h 34mFrontier
Wed 12/36:02 pmCUN - SEA
2 stops41h 44mFrontier
Deal found 11/12$351
This Kiwi.com deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1412:45 amSEA - CUN
1 stop9h 24mMultiple Airlines
Sun 12/214:58 pmCUN - SEA
1 stop22h 32mMultiple Airlines
Deal found 11/12$360
This Kiwi.com deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/123:40 pmSEA - CUN
2 stops16h 56mMultiple Airlines
Fri 12/194:58 pmCUN - SEA
1 stop18h 12mMultiple Airlines
Deal found 11/12$362
This Kiwi.com deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:25 pmSEA - CUN
2 stops42h 11mMultiple Airlines
Thu 12/112:14 pmCUN - SEA
1 stop21h 32mMultiple Airlines
Deal found 11/10$363
This Kiwi.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1610:48 pmSEA - CUN
1 stop10h 47mAeromexico
Fri 11/211:32 pmCUN - SEA
1 stop13h 27mAeromexico
Deal found 11/11$368
This Kiwi.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/178:00 amSEA - CUN
Nonstop6h 05mHawaiian Airlines
Fri 11/214:00 pmCUN - SEA
Nonstop6h 50mHawaiian Airlines
Deal found 11/11$369
This Kiwi.com deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/177:11 amSEA - CUN
Nonstop5h 54mAeromexico
Fri 11/215:20 pmCUN - SEA
1 stop9h 51mAeromexico
Deal found 11/11$371
This Delta deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/147:11 amSEA - CUN
Nonstop5h 54mDelta
Tue 11/185:15 pmCUN - SEA
Nonstop6h 40mDelta
Deal found 11/11$372
This Kiwi.com deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1412:45 amSEA - CUN
1 stop9h 24mMultiple Airlines
Tue 12/234:58 pmCUN - SEA
1 stop22h 32mMultiple Airlines
Deal found 11/12$373
This Kiwi.com deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:00 pmSEA - CUN
1 stop16h 09mMultiple Airlines
Thu 12/184:58 pmCUN - SEA
1 stop22h 32mMultiple Airlines
Deal found 11/12$375

Cheap flight deals from Seattle to Cancún

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Cancún (CUN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 13, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$349
(Kiwi.com)

One-way from

$117
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$575

Good round-trip deal

$472 or less

Good one-way deal

$265 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Cancun flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Cancun flights.
Search Deals
From Seattle/Tacoma Intl to Cancun
Search Deals
One-way flight from Seattle/Tacoma Intl to Cancun
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Cancun.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Cancun.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Cancún that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from Seattle to Cancún that are best for you.

Fly from

Seattle

Fly to

Cancún

Route

Depart

Return

Price

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 1/19

7:10 am-4:05 pm

Nonstop5h 55m

Cancun

Thu 1/22

5:15 pm-9:00 pm

Nonstop6h 45m

$362

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 2/2

7:10 am-4:05 pm

Nonstop5h 55m

Cancun

Tue 2/10

5:15 pm-9:00 pm

Nonstop6h 45m

$369

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Tue 1/13

7:10 am-4:05 pm

Nonstop5h 55m

Cancun

Tue 1/27

12:35 pm-7:55 pm

1 stop10h 20m

$369

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 1/11

7:10 am-4:05 pm

Nonstop5h 55m

Cancun

Sat 1/17

5:15 pm-9:00 pm

Nonstop6h 45m

$369

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Fri 1/30

7:10 am-4:05 pm

Nonstop5h 55m

Cancun

Tue 2/3

5:15 pm-9:00 pm

Nonstop6h 45m

$369

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 1/4

7:50 pm-5:45 pm

1 stop18h 55m

Cancun

Tue 1/13

5:15 pm-9:00 pm

Nonstop6h 45m

$370

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Wed 1/7

11:10 pm-11:24 am

1 stop9h 14m

Cancun

Tue 1/13

8:00 am-7:00 pm

1 stop14h 00m

$383

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 2/9

5:15 am-4:20 pm

1 stop8h 05m

Cancun

Fri 2/13

2:45 pm-12:55 am

2 stops13h 10m

$432

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 1/4

8:35 pm-2:55 pm

2 stops15h 20m

Cancun

Tue 1/13

12:10 pm-11:05 pm

2 stops13h 55m

$461

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Fri 1/16

10:00 pm-12:05 pm

1 stop11h 05m

$120

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 21 results
1
2
3

Compare providers for flights from Seattle to Cancún

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Cancún in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
SmartFaresPrice Accuracy1 starTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Cancún flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Seattle-Cancún flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Seattle-Cancún flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Cancún flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Cancún flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Cancún

Have a flexible travel schedule? Discover the best time to fly to Cancún from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Cancún. Price data was last updated on November 7, 2025.

Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Cancún. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle to Cancún?

Currently, August is the cheapest month in which you can book a flight from Seattle to Cancún (average of $184). Flying from Seattle to Cancún in December is currently the most expensive (average of $390). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to CUN?

Find hourly flight availability from Seattle to Cancún. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 62% on flights from Seattle to Cancún by exploring options for tickets in the afternoon.

The best insider tips for Seattle to Cancún flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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 original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Cancún trip
Airports
SEA

Plan to arrive at SEA at least two hours before your flight. Use SEA Spot Saver for security screening appointments to reduce wait times.

Read more about SEAby Brandon Schultz
CUN

For a smooth arrival at CUN, arrange hotel transfers in advance to avoid taxi scams and confusion at the airport.

Read more about CUNby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on CUN

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

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.

Read more

Reviews of airlines servicing Cancún

Get insights into the airlines that provide service to Cancún. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cancún. Reviews last updated November 13, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Aeromexico from Seattle to Cancún. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,282 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,282 reviews
Alaska Airlines
8.0
Very good
11,282 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
8,008 reviews
Alaska Airlines
8.0
Very good
11,282 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Aeromexico
7.4
Good
1,668 reviews
Alaska Airlines
8.0
Very good
11,282 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
9,016 reviews
Alaska Airlines
8.0
Very good
11,282 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
11,050 reviews
Alaska Airlines
8.0
Very good
11,282 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Cancún. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Seattle to Cancún?

    To fly from Seattle to Cancún, you need to book a flight from Seattle/Tacoma Intl (SEA) to Cancun (CUN). Nonstop flights to Cancun from Seattle/Tacoma Intl take 5h 54m on average. When it comes time to book airfare, you have a few options: there are 5 outbound flights from Seattle/Tacoma Intl to Cancun offered by 11 different airlines.

  • How popular is this Seattle to Cancún flight route?

    Within the past month, 21 users have taken a look at flights from Seattle/Tacoma Intl to Cancun.

  • How long is the flight from Seattle to Cancún?

    Departing from Seattle to Cancún will take you 5h 55m. The distance between Seattle and Cancún is about 2683 mi. All flights are typically nonstop.

  • What are the cheapest airlines flying from Seattle to Cancún round-trip?

    Spirit Airlines, at $127, was found to be the cheapest airline from Seattle to Cancún.Alternate airlines to your destination round-trip include Volaris and Aeromexico. Spirit Airlines is priced at 77% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Seattle to Cancún?

    No one likes to see their flight delayed. When booking a flight from Seattle to Cancún consider choosing Aeromexico (98%), Alaska Airlines (96%) or Hawaiian Airlines (96%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Cancún?

    On average you can expect to pay $559 for a flight from Seattle to Cancún. The cheapest flight overall is $149 while the most popular route, (Seattle/Tacoma Intl - Cancun) is currently priced at $307.

  • Can I find deals for flights from Seattle to Cancún that include hotel bookings?

    Yes. In addition to deals on Seattle to Cancún flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Cancún?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Cancún.

  • Can I find deals for business class flights from Seattle to Cancún?

    Yes. Cheapflights offers flight deals from Seattle to Cancún by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Cancún?

    Currently, August is the cheapest month in which you can book a flight from Seattle to Cancún (average of $184). Flying from Seattle to Cancún in December is currently the most expensive (average of $390). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Puerto Aventuras
Holbox
Punta Sam

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Seattle to Cancún

Discover the top 10 airlines that operate flights from Seattle to Cancún. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$127Average$370FlexibilityNo cancel feeOn-time65%
VolarisCheapest$246Average$474FlexibilityNo cancel feeOn-time79%
AeromexicoCheapest$252Average$559FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$289Average$604FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$310Average$789FlexibilityNo cancel feeOn-time67%
FrontierCheapest$314Average$437FlexibilityNo cancel feeOn-time62%
DeltaCheapest$349Average$593FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$399Average$574FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$416Average$649FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$418Average$646FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.