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Cancún

$69+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CUN
May 1 — May 81
Fri 5/1
Fri 5/8
1 adult, Economy
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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”

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3. Compare prices and book

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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 Monday or Sunday and return on a Saturday

Cheap 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 1, 2026.

This Priceline deal was found by Cheapflights users on 3/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:12 pm
SEA
-
CUN
2 stops15h 30m
Frontier
Tue 5/510:30 am
CUN
-
SEA
2 stops49h 52m
Frontier
Deal found 3/30$341
This FlightHub deal was found by Cheapflights users on 3/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:07 pm
SEA
-
CUN
1 stop16h 32m
Frontier
Thu 4/234:07 pm
CUN
-
SEA
2 stops43h 20m
Frontier
Deal found 3/31$342
This Orbitz deal was found by Cheapflights users on 3/30. 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.
Tue 4/147:12 pm
SEA
-
CUN
1 stop17h 27m
Frontier
Fri 4/173:54 pm
CUN
-
SEA
1 stop19h 33m
Frontier
Deal found 3/30$345
This FlightHub deal was found by Cheapflights users on 3/31. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:12 pm
SEA
-
CUN
1 stop17h 27m
Frontier
Mon 4/204:07 pm
CUN
-
SEA
2 stops43h 20m
Frontier
Deal found 3/31$347
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Sat 4/1811:00 pm
SEA
-
CUN
1 stop14h 28m
Multiple Airlines
Wed 4/299:32 am
CUN
-
SEA
2 stops25h 55m
Multiple Airlines
Deal found 4/1$350
This Trip.com deal was found by Cheapflights users on 3/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2011:00 pm
SEA
-
CUN
1 stop10h 54m
Multiple Airlines
Wed 4/294:08 pm
CUN
-
SEA
Nonstop6h 48m
Multiple Airlines
Deal found 3/29$351
This Expedia deal was found by Cheapflights users on 3/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:12 pm
SEA
-
CUN
1 stop17h 27m
Frontier
Fri 4/244:07 pm
CUN
-
SEA
2 stops43h 20m
Frontier
Deal found 3/28$352
This FlightHub deal was found by Cheapflights users on 4/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:12 pm
SEA
-
CUN
2 stops15h 30m
Frontier
Tue 5/510:30 am
CUN
-
SEA
2 stops49h 52m
Frontier
Deal found 4/1$353
This Justfly.com deal was found by Cheapflights users on 4/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1111:06 am
SEA
-
CUN
2 stops22h 58m
Frontier
Mon 5/183:39 pm
CUN
-
SEA
1 stop20h 10m
Frontier
Deal found 4/1$356
This CheapOair deal was found by Cheapflights users on 4/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:06 am
SEA
-
CUN
2 stops22h 58m
Frontier
Tue 5/123:39 pm
CUN
-
SEA
1 stop20h 10m
Frontier
Deal found 4/1$357
This FlightHub deal was found by Cheapflights users on 3/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/164:20 pm
SEA
-
CUN
1 stop20h 19m
Frontier
Fri 4/244:07 pm
CUN
-
SEA
2 stops43h 20m
Frontier
Deal found 3/28$358
This FlightHub deal was found by Cheapflights users on 4/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:06 am
SEA
-
CUN
2 stops46h 58m
Frontier
Tue 5/123:39 pm
CUN
-
SEA
1 stop20h 10m
Frontier
Deal found 4/1$359

Find 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 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$341
(Priceline)

One-way from

$69
(Expedia)

Popular in

December

Cheapest in

September

Average price

$629

Good round-trip deal

$475 or less

Good one-way deal

$319 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. 6% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 1, 2026.
Use the filters below to find and compare flights from Seattle to Cancún that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 5/10

7:25 am-3:15 pm

Nonstop5h 50m

Cancun

Fri 5/15

4:25 pm-9:00 pm

Nonstop6h 35m

$471

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 5/2

7:15 am-3:08 pm

Nonstop5h 53m

Cancun

Fri 5/8

4:25 pm-9:00 pm

Nonstop6h 35m

$481

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 5/2

7:15 am-3:08 pm

Nonstop5h 53m

Cancun

Wed 5/6

4:17 pm-9:01 pm

Nonstop6h 44m

$481

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 4/26

11:15 pm-11:30 am

1 stop10h 15m

Cancun

Sun 5/3

4:17 pm-9:01 pm

Nonstop6h 44m

$485

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 5/3

7:15 am-3:08 pm

Nonstop5h 53m

Cancun

Sat 5/9

12:35 pm-10:48 pm

1 stop12h 13m

$491

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 5/9

7:25 am-3:15 pm

Nonstop5h 50m

Cancun

Sat 5/16

4:25 pm-9:00 pm

Nonstop6h 35m

$491

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Thu 4/23

11:59 pm-1:00 pm

1 stop11h 01m

Cancun

Mon 4/27

12:45 pm-11:54 pm

1 stop13h 09m

$571

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Thu 5/14

7:25 am-3:15 pm

Nonstop5h 50m

Cancun

Tue 5/19

4:25 pm-9:00 pm

Nonstop6h 35m

$639

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 4/11

7:15 am-3:17 pm

Nonstop6h 02m

Cancun

Mon 4/20

4:17 pm-9:01 pm

Nonstop6h 44m

$664
Cheapest one-way

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Tue 5/5

8:10 am-4:20 pm

Nonstop6h 10m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
JetabroadPrice Accuracy3 starsTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Cancún flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 13, 2026.

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, 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 $313). 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 1, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Cancún as you normally would.

How much does it cost to fly round-trip from Seattle to Cancún?

The best insider tips for Seattle to Cancún flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Cancún trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on CUN

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 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 April 1, 2026.
Read reviews from past customers who have flown Alaska Airlines,Delta, andAeromexico 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
7.9
Good
12,149 reviews

Comfort

7.8

Food

7.0

Entertainment

7.0

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Alaska Airlines
7.9
Good
12,149 reviews
Alaska Airlines
7.9
Good
12,149 reviews

Comfort

7.8

Food

7.0

Entertainment

7.0

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Delta
7.9
Good
8,366 reviews
Alaska Airlines
7.9
Good
12,149 reviews

Comfort

7.8

Food

7.0

Entertainment

7.0

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
Aeromexico
7.4
Good
1,554 reviews
Alaska Airlines
7.9
Good
12,149 reviews

Comfort

7.8

Food

7.0

Entertainment

7.0

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
United Airlines
7.4
Good
9,534 reviews
Alaska Airlines
7.9
Good
12,149 reviews

Comfort

7.8

Food

7.0

Entertainment

7.0

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.
American Airlines
7.1
Good
11,545 reviews
Alaska Airlines
7.9
Good
12,149 reviews

Comfort

7.8

Food

7.0

Entertainment

7.0

Overall

7.9

Boarding

8.1

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2025

SEA - MSY

I really got a lesson in upgrades. I let my seat get chosen . Both times a middle seat...on purpose ...even when we were not full. That's petty I sat behind the first class . They got more than 1 drink ...and a snack . .and the staff actually talked to them...behind a see thru shawl/sheet in the aisle....... You could see over the seats just fine and you could hear the voices just fine. But the sheet let You KNOW. Your not welcome here. For a moment I regretted not spending 300 dollars per seat so I could see a smile and eat a sandwhich and enjoy my seat . The married couple drank champain and laughed and flirted with each other. It looked so happy and care free MONEY really does buy happiness ..the hateful glares and sighs from my seat mates brought me back to reality I wasn't rich and I still had 2 hours left in this middle seat.

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 5 outbound flights from Seattle/Tacoma Intl to Cancun offered by 10 different airlines.

  • How popular is this Seattle to Cancún flight route?

    Within the past month, 13 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 50m. 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?

    Volaris, at $165, was found to be the cheapest airline from Seattle to Cancún.Alternate airlines to your destination round-trip include Aeromexico and Frontier. Volaris is priced at 69% 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 Volaris, which is currently one of the cheapest options available, starting at $102. Frontier flights start at $165 while deals on Delta start at $175 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 Alaska Airlines (80%), Hawaiian Airlines (80%) or Delta (67%) 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 $507 for a flight from Seattle to Cancún. The cheapest flight overall is $200 while the most popular route, (Seattle/Tacoma Intl - Cancun) is currently priced at $320.

  • 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 $313). 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
Punta Sam
Holbox

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Cancún

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Cancún flights
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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 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
VolarisCheapest$165Average$420FlexibilityNo cancel feeOn-time79%
AeromexicoCheapest$190Average$479FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$193Average$443FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$224Average$547FlexibilityNo cancel feeOn-time85%
DeltaCheapest$250Average$561FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$271Average$651FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$389Average$572FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$399Average$567FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$433Average$619FlexibilityNo cancel feeOn-time63%
Air CanadaCheapest$476Average$747FlexibilityNo cancel feeOn-time67%

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