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$183+ 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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CUN
Apr 21 — Apr 281
Mon 4/21
Mon 4/28
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 19 days in advance, depart on a Tuesday or Monday and return on a Friday

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 April 16, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$396
(Delta)

One-way from

$183
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$630

Good round-trip deal

$510 or less

Good one-way deal

$248 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Cancun flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Cancun flights.
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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. 4% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 16, 2025.

This Delta deal was found by Cheapflights users on 4/15. 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.
Sun 8/37:23 amSEA - CUN
Nonstop5h 49mDelta
Thu 8/74:13 pmCUN - SEA
Nonstop6h 26mDelta
Deal found 4/15$396
This Booking.com deal was found by Cheapflights users on 4/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/113:20 pmSEA - CUN
2 stops16h 01mMultiple Airlines
Fri 5/163:56 pmCUN - SEA
1 stop10h 48mMultiple Airlines
Deal found 4/14$397
This Mytrip deal was found by Cheapflights users on 4/15. 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.
Sat 5/103:20 pmSEA - CUN
2 stops18h 19mSpirit Airlines
Tue 5/1312:18 pmCUN - SEA
3 stops37h 52mSpirit Airlines
Deal found 4/15$401
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 8/712:24 amSEA - CUN
1 stop12h 46mAmerican Airlines
Mon 8/186:10 pmCUN - SEA
1 stop8h 34mAmerican Airlines
Deal found 4/16$409
This Mytrip deal was found by Cheapflights users on 4/15. 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.
Mon 5/512:21 pmSEA - CUN
1 stop23h 49mFrontier
Sat 5/103:56 pmCUN - SEA
1 stop10h 48mFrontier
Deal found 4/15$413
This Expedia deal was found by Cheapflights users on 4/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/87:12 amSEA - CUN
Nonstop5h 48mAeromexico
Thu 5/154:10 pmCUN - SEA
Nonstop6h 41mAeromexico
Deal found 4/16$415
This United deal was found by Cheapflights users on 4/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/65:00 amSEA - CUN
1 stop9h 12mUnited Airlines
Wed 8/137:58 amCUN - SEA
2 stops14h 59mUnited Airlines
Deal found 4/15$471
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/98:15 amSEA - CUN
Nonstop6h 04mAlaska Airlines
Wed 5/145:29 pmCUN - SEA
1 stop17h 27mAlaska Airlines
Deal found 4/16$472
This Air Canada deal was found by Cheapflights users on 4/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/65:30 amSEA - CUN
1 stop8h 50mAir Canada
Mon 5/128:45 pmCUN - SEA
2 stops23h 48mAir Canada
Deal found 4/16$519
This JetBlue deal was found by Cheapflights users on 4/15. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1910:29 pmSEA - CUN
1 stop13h 55mJetBlue
Thu 11/2712:20 pmCUN - SEA
1 stop13h 29mJetBlue
Deal found 4/15$541
This Southwest deal was found by Cheapflights users on 4/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/95:00 amSEA - CUN
2 stops13h 05mSouthwest
Thu 7/173:00 pmCUN - SEA
1 stop11h 25mSouthwest
Deal found 4/15$545

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 April 16, 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

Tue 7/1

7:15 am-3:05 pm

Nonstop5h 50m

Cancun

Tue 7/8

4:13 pm-8:39 pm

Nonstop6h 26m

$396

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 5/11

3:20 pm-9:21 am

2 stops16h 01m

Cancun

Fri 5/16

3:56 pm-12:44 am

1 stop10h 48m

$397

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 5/10

3:20 pm-11:39 am

2 stops18h 19m

Cancun

Tue 5/13

12:18 pm-12:10 am

3 stops37h 52m

$401

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Thu 5/8

7:12 am-3:00 pm

Nonstop5h 48m

Cancun

Thu 5/15

4:10 pm-8:51 pm

Nonstop6h 41m

$415

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Tue 5/6

6:00 am-2:51 pm

1 stop30h 51m

Cancun

Tue 5/13

3:15 pm-11:49 pm

1 stop10h 34m

$416

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Tue 5/6

12:24 am-11:44 am

1 stop9h 20m

Cancun

Mon 5/12

4:00 pm-12:45 am

1 stop10h 45m

$452

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Fri 7/4

11:58 pm-7:20 pm

1 stop17h 22m

Cancun

Tue 7/8

7:58 am-8:56 pm

2 stops14h 58m

$471

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Fri 5/9

8:15 am-4:19 pm

Nonstop6h 04m

Cancun

Wed 5/14

5:29 pm-8:56 am

1 stop17h 27m

$472

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Tue 5/6

5:30 am-4:20 pm

1 stop8h 50m

Cancun

Mon 5/12

8:45 pm-6:33 pm

2 stops23h 48m

$519

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Wed 7/9

5:00 am-8:05 pm

2 stops13h 05m

Cancun

Thu 7/17

3:00 pm-12:25 am

1 stop11h 25m

$545

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 22 results
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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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars

*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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Cancún flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 April 11, 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 April 16, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 60% 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 April 16, 2025.

The most flights from SEA to CUN are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Cancún by month

Plan your trip to Cancún by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Cancún ranges from 1.1 - 11.1 inches per month. October is typically the wettest month, when rainfall can reach 11.1 in. April is typically the driest time to visit Cancún when rainfall is around 1.1 in.

Temperature in Cancún by month

Plan your trip to Cancún by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Cancún, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 75.2 F).

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 April 16, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Seattle to Cancún by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,876 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,282 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Aeromexico
7.5
Good
1,699 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,665 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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 7 outbound flights from Seattle/Tacoma Intl to Cancun offered by 12 different airlines.

  • How popular is this Seattle to Cancún flight route?

    Within the past month, 25 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?

    Delta, at $396, was found to be the cheapest airline from Seattle to Cancún.Alternate airlines to your destination round-trip include Spirit Airlines and Aeromexico. Delta is priced at 32% 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 Spirit Airlines, which is currently one of the cheapest options available, starting at $184. Aeromexico flights start at $186 while deals on Frontier start at $187 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 (92%), Aeromexico (92%) or Qatar Airways (91%) 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 $847 for a flight from Seattle to Cancún. The cheapest flight overall is $188 while the most popular route, (Seattle/Tacoma Intl - Cancun) is currently priced at $354.

  • 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

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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 April 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$140Average$392FlexibilityNo cancel feeOn-time65%
FrontierCheapest$247Average$376FlexibilityNo cancel feeOn-time62%
AeromexicoCheapest$290Average$590FlexibilityNo cancel feeOn-timeN/A
VolarisCheapest$308Average$538FlexibilityNo cancel feeOn-time79%
Hawaiian AirlinesCheapest$314Average$612FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$318Average$633FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$340Average$690FlexibilityNo cancel feeOn-time67%
Alaska AirlinesCheapest$393Average$601FlexibilityNo cancel feeOn-time75%
DeltaCheapest$400Average$597FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$447Average$645FlexibilityNo cancel feeOn-time71%

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