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Cheap flights from Seattle to Cancún from C$ 213

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CUN
3 Aug — 10 Aug1
1 adult

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 29 July 2025.

Round-trip from

C$ 466

One-way from

C$ 213

Popular in

December

Cheapest in

October

Average price

C$ 702
Delta
  • Delta
  • 20/10-25/10
  • Nonstop
  • 12h 21m total
  • Seattle to Cancún
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Aeromexico
  • Aeromexico
  • 12/9
  • 1 total stop
  • 11h 20m total
  • Seattle to Cancún
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 64 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 32 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 29 July 2025.

Mon 20/107:24 a.m.SEA - CUN
Nonstop5h 46mDelta
Sat 25/1011:15 a.m.CUN - SEA
1 stop10h 45mDelta
Deal found 28/7C$ 466
Sat 27/92:51 p.m.SEA - CUN
2 stops22h 09mAlaska Airlines
Sat 4/104:10 p.m.CUN - SEA
Nonstop6h 33mAlaska Airlines
Deal found 29/7C$ 519
Fri 17/105:22 a.m.SEA - CUN
1 stop7h 37mAmerican Airlines
Sat 25/103:05 p.m.CUN - SEA
1 stop10h 30mAmerican Airlines
Deal found 28/7C$ 553
Sat 18/1011:10 p.m.SEA - CUN
1 stop10h 52mUnited Airlines
Sat 25/107:51 a.m.CUN - SEA
2 stops16h 02mUnited Airlines
Deal found 28/7C$ 602
Tue 7/108:12 a.m.SEA - CUN
Nonstop6h 08mHawaiian Airlines
Tue 21/105:30 p.m.CUN - SEA
1 stop18h 25mHawaiian Airlines
Deal found 26/7C$ 606

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 629,999 searches. Data last updated 29 July 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 20/10

7:24 a.m.-3:10 p.m.

Nonstop5h 46m

Cancun

Sat 25/10

4:10 p.m.-8:45 p.m.

Nonstop6h 35m

C$ 466

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 27/9

2:51 p.m.-3:00 p.m.

2 stops22h 09m

Cancun

Sat 4/10

4:10 p.m.-8:43 p.m.

Nonstop6h 33m

C$ 519

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Fri 17/10

5:22 a.m.-2:59 p.m.

1 stop7h 37m

Cancun

Sat 25/10

3:05 p.m.-11:35 p.m.

1 stop10h 30m

C$ 553

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Thu 16/10

6:55 p.m.-1:00 p.m.

1 stop16h 05m

Cancun

Thu 23/10

1:43 p.m.-9:44 p.m.

1 stop10h 01m

C$ 595

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Tue 7/10

8:12 a.m.-4:20 p.m.

Nonstop6h 08m

Cancun

Tue 21/10

5:30 p.m.-9:55 a.m.

1 stop18h 25m

C$ 606

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Fri 17/10

9:24 a.m.-9:45 a.m.

1 stop22h 21m

Cancun

Thu 23/10

11:31 a.m.-12:31 a.m.

2 stops39h 00m

C$ 668

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Fri 12/9

11:40 p.m.-1:00 p.m.

1 stop11h 20m

C$ 213

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 27/10

7:24 a.m.-3:10 p.m.

Nonstop5h 46m

C$ 218

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 6/9

6:25 a.m.-7:20 p.m.

2 stops10h 55m

C$ 224

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 25/8

11:10 p.m.-1:30 p.m.

1 stop12h 20m

C$ 237

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

Showing 1-10 of 13 results
1
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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 25 July 2025.

The price you pay for your flight from Seattle to Cancún may vary depending on when you book. For the best chance of a lower fare, look to book 19 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, April is the cheapest month in which you can book a flight from Seattle to Cancún (average of C$ 298). Flying from Seattle to Cancún in July is currently the most expensive (average of C$ 464). 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 29 July 2025.

It’s typically best to fly out from Seattle to Cancún at noon. Doing so could potentially save you 59% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 29 July 2025.

The most flights from SEA to CUN are scheduled on a Monday (3 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (1 on average).

What’s the top layover airport for flights from Seattle to Cancún?

Share of one-stop round-trip flights from Seattle to Cancún chosen by Cheapflights users in the past 12 months, using the same layover each way.

Houston (IAH) – chosen by Cheapflights users on 33% of one-stop itineraries from Seattle to Cancún on Cheapflights.

What’s the cheapest layover airport for flights from Seattle to Cancún?

Average round-trip fare for 1-stop flights from Seattle to Cancún, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Los Angeles (LAX) is the most affordable 1-stop option, with an average round-trip price of C$ 649.

What’s the fastest layover option from Seattle to Cancún?

Shortest average travel time for 1-stop one-way flights from Seattle to Cancún, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Mexico City (MEX) have the shortest average one-way travel time for 1-stop routes: 4h 51m.

Which airport typically offers the quickest layover for flights from Seattle to Cancún?

Average layover duration for 1-stop one-way flights from Seattle to Cancún, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Mexico City (MEX) offer the fastest connection on this route, with an average layover time of 1h 38m.

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 29 July 2025.
Read through reviews of airlines operating flights from Seattle to Cancún, such as Alaska Airlines,Southwest, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

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
Check prices

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

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
Check prices

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

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
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

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
2,605 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

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
1,720 reviews
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.1

Food

7.1

Overall

8.0

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?

    If you wish to fly to Cancún from Seattle, then you need to book flights from Seattle/Tacoma Intl to Cancun. There are 2 flights from Seattle/Tacoma Intl (SEA) to Cancun (CUN) per day to choose from. Flights to Cancún from Seattle/Tacoma Intl are available from 3 different airlines, which means you should have some options if you want to compare airfare deals. 5h 46m is how long a nonstop flight from Seattle to Cancun typically takes.

  • How popular is this Seattle to Cancún flight route?

    The Seattle/Tacoma Intl to Cancun flight path was viewed by 83 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Delta, at C$ 466, was found to be the cheapest airline from Seattle to Cancún.Alternate airlines to your destination round-trip include Alaska Airlines and American Airlines. You may be able to fly from Seattle to Cancún for 41% less than the average price by searching for these airlines.

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

    For one-way options, check prices for Aeromexico. According to our data, you can fly for as low as C$ 213. Users have also found prices from C$ 218 and C$ 224 on Delta and United Airlines, respectively.

  • 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.

  • 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, April is the cheapest month in which you can book a flight from Seattle to Cancún (average of C$ 298). Flying from Seattle to Cancún in July is currently the most expensive (average of C$ 464). 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

Travelling to a place near Cancún?

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

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Top 3 airlines flying from Seattle to Cancún

Discover the top 3 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 629,999 searches. Data last updated 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 392AverageC$ 732FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
AeromexicoCheapestC$ 451AverageC$ 774FlexibilityNo cancel feeOn-timeN/A
Search Aeromexico flights
Alaska AirlinesCheapestC$ 542AverageC$ 747FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Cancún?

Cheapflights helps you search for flights from Seattle to Cancún via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Cancún?

Cheapflights simply makes it quick and affordable to book flights from Seattle to Cancún by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Seattle to Cancún with no change fees?

Yes, we can. To see specific flights from Seattle to Cancún with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to Cancún become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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