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$130+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CUN
10月 11 — 10月 181
週六 10/11
週六 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Cancun are usually found in September or October, booked 25 days in advance, depart on a Tuesday or Monday and return on a Sunday

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 9月 11, 2025.

Round-trip from

$343
(Kiwi.com)

One-way from

$130
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$481

Good round-trip deal

$453 or less

Good one-way deal

$279 or less
From Seattle/Tacoma Intl to Cancun
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One-way flight from Seattle/Tacoma Intl to Cancun
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Highest demand for flights based on searches. 6% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Cancun.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Cancun.
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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 9月 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
週五 10/248:43 pmSEA - CUN
1 stop16h 21mMultiple Airlines
週五 10/314:10 pmCUN - SEA
Nonstop6h 35mMultiple Airlines
Deal found 9/9$343
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
週六 10/258:43 pmSEA - CUN
1 stop16h 21mMultiple Airlines
週六 11/19:00 amCUN - SEA
2 stops28h 23mMultiple Airlines
Deal found 9/10$344
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
週五 10/248:43 pmSEA - CUN
1 stop16h 21mMultiple Airlines
週日 10/266:15 pmCUN - SEA
2 stops18h 10mMultiple Airlines
Deal found 9/10$348
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
週一 10/205:50 pmSEA - CUN
1 stop14h 25mMultiple Airlines
週六 10/254:14 pmCUN - SEA
1 stop17h 19mMultiple Airlines
Deal found 9/11$355
This SmartFares deal was found by Cheapflights users on 9/8. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週二 10/79:30 amSEA - CUN
1 stop12h 10mAeromexico
週四 10/164:10 pmCUN - SEA
Nonstop6h 35mAeromexico
Deal found 9/8$358
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
週六 11/86:15 pmSEA - CUN
1 stop15h 03mMultiple Airlines
週二 11/181:28 pmCUN - SEA
1 stop24h 16mMultiple Airlines
Deal found 9/9$359
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
週五 10/248:43 pmSEA - CUN
1 stop16h 21mMultiple Airlines
週日 11/27:40 pmCUN - SEA
1 stop17h 43mMultiple Airlines
Deal found 9/9$360
This Delta deal was found by Cheapflights users on 9/8. 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.
週日 10/127:24 amSEA - CUN
Nonstop5h 46mDelta
週四 10/164:10 pmCUN - SEA
Nonstop6h 35mDelta
Deal found 9/8$361
This Delta deal was found by Cheapflights users on 9/11. 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.
週二 10/215:25 amSEA - CUN
1 stop7h 51mDelta
週四 10/234:10 pmCUN - SEA
Nonstop6h 35mDelta
Deal found 9/11$362
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
週一 10/63:40 pmSEA - CUN
1 stop17h 45mDelta
週四 10/164:10 pmCUN - SEA
Nonstop6h 35mDelta
Deal found 9/10$365

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 9月 11, 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

週二 10/21

5:25 am-3:16 pm

1 stop7h 51m

Cancun

週四 10/30

12:25 pm-11:54 pm

1 stop13h 29m

$376

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

週一 10/6

7:24 am-3:10 pm

Nonstop5h 46m

Cancun

週六 10/11

4:10 pm-8:45 pm

Nonstop6h 35m

$381

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

週日 10/26

7:24 am-3:10 pm

Nonstop5h 46m

Cancun

週二 10/28

6:05 pm-10:03 am

1 stop17h 58m

$388

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

週二 10/14

8:12 am-4:20 pm

Nonstop6h 08m

Cancun

週三 10/22

5:30 pm-10:59 am

1 stop19h 29m

$391

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

週三 10/1

7:05 am-7:20 pm

1 stop10h 15m

Cancun

週六 10/4

1:43 pm-11:15 pm

2 stops11h 32m

$400

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

週二 11/11

7:11 am-4:05 pm

Nonstop5h 54m

Cancun

週五 11/14

8:44 am-8:00 pm

1 stop14h 16m

$401

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

週日 11/9

9:30 am-12:23 am

1 stop11h 53m

Cancun

週四 11/13

11:17 am-8:00 pm

1 stop11h 43m

$401

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

週五 10/24

10:05 pm-12:25 pm

1 stop12h 20m

Cancun

週日 11/2

5:10 pm-8:45 pm

Nonstop6h 35m

$405

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

週日 11/30

7:11 am-4:05 pm

Nonstop5h 54m

$149

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

週六 11/29

8:06 am-5:05 pm

Nonstop5h 59m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 15 results
1
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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

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 August 29, 2025.

Booking 25 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, January is the cheapest month in which you can book a flight from Seattle to Cancún (average of $360). Flying from Seattle to Cancún in March is currently the most expensive (average of $492). 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 9月 11, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 63% on flights from Seattle to Cancún by exploring options for tickets in the afternoon.

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 9月 11, 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
10,000 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Aeromexico
7.5
Good
1,701 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

  • How popular is this Seattle to Cancún flight route?

    Within the past month, 24 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 6h 08m. The distance between Seattle and Cancún is about 2683 mi. This flight may include one or multiple stops.

  • 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 Delta (93%), Korean Air (93%) or Aeromexico (65%) 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 $720 for a flight from Seattle to Cancún. The cheapest flight overall is $218 while the most popular route, (Seattle/Tacoma Intl - Cancun) is currently priced at $329.

  • 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, January is the cheapest month in which you can book a flight from Seattle to Cancún (average of $360). Flying from Seattle to Cancún in March is currently the most expensive (average of $492). 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

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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 9月 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$127Average$370FlexibilityNo cancel feeOn-time65%
VolarisCheapest$235Average$527FlexibilityNo cancel feeOn-time79%
AeromexicoCheapest$259Average$567FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$282Average$451FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$290Average$604FlexibilityNo cancel feeOn-time85%
Air CanadaCheapest$349Average$700FlexibilityNo cancel feeOn-time67%
DeltaCheapest$353Average$596FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$399Average$562FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$420Average$653FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$430Average$665FlexibilityNo cancel feeOn-time75%

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