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$157+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CUN
ago. 2 — ago. 91
sáb. 8/2
sáb. 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Cancun are usually found in October or September, booked 19 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 julio 28, 2025.

Round-trip from

$311
(American Airlines)

One-way from

$157
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$512

Good round-trip deal

$401 or less

Good one-way deal

$207 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. 5% potential increase in price ($34 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 July 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 julio 28, 2025.

This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/205:43 pmSEA - CUN
1 stop14h 13mAmerican Airlines
sáb. 9/277:50 amCUN - SEA
1 stop13h 19mAmerican Airlines
Deal found 7/26$311
This SmartFares deal was found by Cheapflights users on 7/28. 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.
lun. 9/159:20 pmSEA - CUN
1 stop17h 35mAeromexico
mié. 10/159:11 amCUN - SEA
1 stop12h 49mAeromexico
Deal found 7/28$323
This Delta deal was found by Cheapflights users on 7/27. 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.
lun. 10/207:24 amSEA - CUN
Nonstop5h 46mDelta
sáb. 10/254:10 pmCUN - SEA
Nonstop6h 35mDelta
Deal found 7/27$340
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/711:58 pmSEA - CUN
1 stop8h 06mUnited Airlines
sáb. 9/137:51 amCUN - SEA
2 stops12h 58mUnited Airlines
Deal found 7/25$374
This Orbitz deal was found by Cheapflights users on 7/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/276:05 pmSEA - CUN
1 stop18h 55mAlaska Airlines
sáb. 10/44:10 pmCUN - SEA
Nonstop6h 33mAlaska Airlines
Deal found 7/27$391
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
sáb. 8/2312:40 pmSEA - CUN
2 stops35h 53mMultiple Airlines
sáb. 8/3010:34 amCUN - SEA
1 stop11h 43mMultiple Airlines
Deal found 7/26$397
This Mytrip deal was found by Cheapflights users on 7/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/147:48 pmSEA - CUN
1 stop18h 32mFrontier
lun. 8/183:25 pmCUN - SEA
1 stop11h 09mFrontier
Deal found 7/27$420

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 julio 28, 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

sáb. 9/20

5:43 pm-9:56 am

1 stop14h 13m

Cancun

sáb. 9/27

7:50 am-7:09 pm

1 stop13h 19m

$311

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

lun. 9/15

9:20 pm-4:55 pm

1 stop17h 35m

Cancun

mié. 10/15

9:11 am-8:00 pm

1 stop12h 49m

$323

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

lun. 10/20

7:24 am-3:10 pm

Nonstop5h 46m

Cancun

sáb. 10/25

8:10 am-8:00 pm

1 stop13h 50m

$340

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

dom. 9/7

11:58 pm-10:04 am

1 stop8h 06m

Cancun

sáb. 9/13

7:51 am-6:49 pm

2 stops12h 58m

$374

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

sáb. 9/27

6:05 pm-3:00 pm

1 stop18h 55m

Cancun

sáb. 10/4

4:10 pm-8:43 pm

Nonstop6h 33m

$391

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

sáb. 8/23

12:40 pm-2:33 am

2 stops35h 53m

Cancun

sáb. 8/30

10:34 am-8:17 pm

1 stop11h 43m

$397

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

jue. 8/14

7:48 pm-4:20 pm

1 stop18h 32m

Cancun

lun. 8/18

3:25 pm-12:34 am

1 stop11h 09m

$420

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

mié. 8/27

6:41 am-2:33 am

2 stops17h 52m

$157

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

vie. 9/5

7:23 am-3:12 pm

Nonstop5h 49m

$159

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

lun. 8/25

5:30 am-3:10 pm

1 stop7h 40m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 17 results
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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 July 25, 2025.

Booking 19 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 julio 28, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 61% on flights from Seattle to Cancún by exploring options for tickets in the afternoon.

Weekly flight availability from Seattle to Cancún

Explore weekly flight availability from Seattle to Cancún. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated julio 28, 2025.

The most flights from SEA to CUN are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

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 julio 28, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.8

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

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.8

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.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.8

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
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.8

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.
Hawaiian Airlines
7.8
Good
2,604 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.8

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
1,719 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Entertainment

7.1

Comfort

7.8

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.

  • 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 45m on average. When it comes time to book airfare, you have a few options: there are 3 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, 23 users have taken a look at flights from Seattle/Tacoma Intl to Cancun.

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

    American Airlines, at $311, was found to be the cheapest airline from Seattle to Cancún.Alternate airlines to your destination round-trip include Aeromexico and Delta. American Airlines is priced at 46% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Cancún one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $159. Aeromexico flights start at $171 while deals on Southwest start at $173 one-way.

  • 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 (85%), Korean Air (85%) or Aeromexico (85%) 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 $767 for a flight from Seattle to Cancún. The cheapest flight overall is $177 while the most popular route, (Seattle/Tacoma Intl - Cancun) is currently priced at $340.

  • 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 julio 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$127Average$370FlexibilityNo cancel feeOn-time65%
AeromexicoCheapest$263Average$569FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$282Average$447FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$290Average$604FlexibilityNo cancel feeOn-time85%
VolarisCheapest$308Average$531FlexibilityNo cancel feeOn-time79%
Air CanadaCheapest$349Average$692FlexibilityNo cancel feeOn-time67%
DeltaCheapest$376Average$594FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$399Average$566FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$408Average$636FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$431Average$664FlexibilityNo cancel feeOn-time71%

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