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Cheap flights from Seattle to Cancún from $141

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Cancún departing on 1/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Seattle to Cancún (SEA-CUN)

Cheap round-trip flights

American Airlines Logo
5:43 pm - 9:56 amSEA-CUN
14h 13m1 stop
American Airlines Logo
2:25 pm - 11:59 pmCUN-SEA
11h 34m1 stop
$313American Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27
Aeromexico Logo
7:23 am - 3:12 pmSEA-CUN
5h 49mnonstop
Aeromexico Logo
4:13 pm - 8:39 pmCUN-SEA
6h 26mnonstop
$320Aeromexico
Find Deal
Mon, Sep 1 - Thu, Sep 4
Delta Logo
7:24 am - 3:10 pmSEA-CUN
5h 46mnonstop
Delta Logo
4:10 pm - 8:45 pmCUN-SEA
6h 35mnonstop
$341Delta
Find Deal
Mon, Oct 20 - Sat, Oct 25
Delta Logo
10:05 pm - 12:30 pmSEA-CUN
12h 25m1 stop
Delta Logo
4:10 pm - 8:45 pmCUN-SEA
6h 35mnonstop
$346Delta
Find Deal
Fri, Oct 3 - Mon, Oct 6
Logo
5:55 pm - 9:49 pmSEA-CUN
25h 54m2 stops
Logo
10:44 am - 8:17 pmCUN-SEA
11h 33m1 stop
$354
Find Deal
Sat, Sep 13 - Sat, Sep 27
Logo
5:55 pm - 10:33 amSEA-CUN
14h 38m1 stop
Logo
10:44 am - 8:17 pmCUN-SEA
11h 33m1 stop
$355
Find Deal
Sat, Sep 6 - Sat, Sep 13
United Airlines Logo
6:25 am - 7:20 pmSEA-CUN
10h 55m2 stops
United Airlines Logo
3:46 pm - 11:29 pmCUN-SEA
9h 43m1 stop
$374United Airlines
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Wed, Sep 24 - Mon, Sep 29
Alaska Airlines Logo
9:13 am - 5:05 pmSEA-CUN
5h 52mnonstop
Alaska Airlines Logo
6:15 pm - 10:01 amCUN-SEA
18h 46m1 stop
$387Alaska Airlines
Find Deal
Mon, Oct 27 - Wed, Nov 5
United Airlines Logo
6:25 am - 7:20 pmSEA-CUN
10h 55m2 stops
United Airlines Logo
2:24 pm - 10:15 pmCUN-SEA
9h 51m1 stop
$390United Airlines
Find Deal
Sun, Aug 31 - Thu, Sep 4
Alaska Airlines Logo
9:40 pm - 3:00 pmSEA-CUN
15h 20m2 stops
Alaska Airlines Logo
4:10 pm - 8:43 pmCUN-SEA
6h 33mnonstop
$396Alaska Airlines
Find Deal
Mon, Sep 29 - Fri, Oct 10

United Airlines flights from Seattle to Cancún

Our best United Airlines deals on Seattle to Cancún flight tickets
United Airlines
Sep 24
SEA6:25 amSeattle/Tacoma Intl
10h 55m
2 stops
CUN7:20 pmCancun
Sep 29
CUN3:46 pmCancun
9h 43m
1 stop
SEA11:29 pmSeattle/Tacoma Intl
$374
Find similar
United Airlines
Aug 31
SEA6:25 amSeattle/Tacoma Intl
10h 55m
2 stops
CUN7:20 pmCancun
Sep 4
CUN2:24 pmCancun
9h 51m
1 stop
SEA10:15 pmSeattle/Tacoma Intl
$390
Find similar
United Airlines
Aug 30
SEA5:02 amSeattle/Tacoma Intl
9h 43m
1 stop
CUN4:45 pmCancun
Sep 4
CUN1:43 pmCancun
11h 09m
1 stop
SEA10:52 pmSeattle/Tacoma Intl
$414
Find similar

Delta flights from Seattle to Cancún

Our best Delta deals on Seattle to Cancún flight tickets
Delta
Oct 20
SEA7:24 amSeattle/Tacoma Intl
5h 46m
CUN3:10 pmCancun
Oct 25
CUN4:10 pmCancun
6h 35m
SEA8:45 pmSeattle/Tacoma Intl
$341
Find similar
Delta
Oct 3
SEA10:05 pmSeattle/Tacoma Intl
12h 25m
1 stop
CUN12:30 pmCancun
Oct 6
CUN4:10 pmCancun
6h 35m
SEA8:45 pmSeattle/Tacoma Intl
$346
Find similar
Delta
Sep 4
SEA7:23 amSeattle/Tacoma Intl
5h 49m
CUN3:12 pmCancun
Sep 13
CUN12:40 pmCancun
11h 36m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
$347
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 7, 2025.
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

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 9/20

5:43 pm-9:56 am

1 stop14h 13m

Cancun

Sat 9/27

2:25 pm-11:59 pm

1 stop11h 34m

$313

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 9/1

7:23 am-3:12 pm

Nonstop5h 49m

Cancun

Thu 9/4

4:13 pm-8:39 pm

Nonstop6h 26m

$320

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 10/20

7:24 am-3:10 pm

Nonstop5h 46m

Cancun

Sat 10/25

4:10 pm-8:45 pm

Nonstop6h 35m

$341

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Fri 10/3

10:05 pm-12:30 pm

1 stop12h 25m

Cancun

Mon 10/6

4:10 pm-8:45 pm

Nonstop6h 35m

$346

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 9/13

5:55 pm-9:49 pm

2 stops25h 54m

Cancun

Sat 9/27

10:44 am-8:17 pm

1 stop11h 33m

$354

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 9/6

5:55 pm-10:33 am

1 stop14h 38m

Cancun

Sat 9/13

10:44 am-8:17 pm

1 stop11h 33m

$355

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Wed 9/24

6:25 am-7:20 pm

2 stops10h 55m

Cancun

Mon 9/29

3:46 pm-11:29 pm

1 stop9h 43m

$374

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 10/27

9:13 am-5:05 pm

Nonstop5h 52m

Cancun

Wed 11/5

6:15 pm-10:01 am

1 stop18h 46m

$387

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 8/31

6:25 am-7:20 pm

2 stops10h 55m

Cancun

Thu 9/4

2:24 pm-10:15 pm

1 stop9h 51m

$390

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 9/29

9:40 pm-3:00 pm

2 stops15h 20m

Cancun

Fri 10/10

4:10 pm-8:43 pm

Nonstop6h 33m

$396

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cancún from

How to get the cheapest flight ticket from Seattle to Cancún

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Cancún?

If you don’t want to visit Cancún in October, then you should wait until September to fly from Seattle, when ticket prices are also cheap, with an average price of $487.

What is the cheapest day to depart on your flight to Cancún?

The cheapest day to depart from Seattle to Cancún is on a Tuesday when prices can be found for as low as $561. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $636. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cancún.

What is the cheapest time of day to depart on your flight to Cancún?

Our most recent data shows that the best time of day to fly to Cancún is in the afternoon. Flights from Seattle to Cancún during this time can be as low as $275. Flights to Cancún are more costly in the evening, with an average ticket price of $712. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Seattle/Tacoma Intl to Cancun flight route?

Fly from Seattle/Tacoma Intl to Cancun for the best Seattle/Tacoma Intl - Cancun flight prices

How far in advance should I book a flight to Cancún?

You are more likely to see cheaper flights to Cancún from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Cancún for around $577 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cancún from Seattle for as low as $543 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Cancun flights?

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Cancun flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Cancún flights?

No. A direct flight is the cheapest option for a flight between Seattle to Cancún.

How have Seattle to Cancún flight prices changed over time?

As of August 2025, prices for Seattle to Cancún flights are approximately 1% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Cancún

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Cancún according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Cancún (SEA to CUN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Cancún

Best Price Found

$141

Fastest flight time

5h 46m

Direct flights

Every day

Airports in Cancún

1 airport
The best one-way flight to Cancún from Seattle in the past 72 hours is $141. The best round-trip flight deal from Seattle to Cancún found on momondo in the last 72 hours is $313.
The fastest flight from Seattle to Cancún takes 5h 46m
Direct flights go from Seattle to Cancún every day.
There is 1 airport near Cancún: Cancun (CUN)
Search flight deals

  • How far is Seattle/Tacoma Intl to Cancun by plane?

    Cancun is 2685.3 mi away from Seattle/Tacoma Intl. In terms of flight time, this usually takes a little over 5h 46m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Cancun Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Cancun Airport refresh daily.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Cancun Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Cancun Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Cancun Airport.

  • What documentation or ID do you need to fly to Cancun Airport?

    The necessary travel and health documents for your Cancun Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Cancún?

  • What is the most popular airline from Seattle to Cancún?

Best airlines flying from Seattle to Cancún

Compare and see reviews for airlines that fly from Seattle to Cancún with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $127Free CancellationRating
6.3
8,055 reviews
Search Spirit Airlines flights
AeromexicoPriceFrom $263Free CancellationRating
7.5
1,718 reviews
Search Aeromexico flights
FrontierPriceFrom $282Free CancellationRating
5.8
3,231 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $290Free CancellationRating
7.8
2,628 reviews
Search Hawaiian Airlines flights
VolarisPriceFrom $308Free CancellationRating
6.6
1,163 reviews
Search Volaris flights
Air CanadaPriceFrom $349Free CancellationRating
7.1
9,893 reviews
Search Air Canada flights
DeltaPriceFrom $373Free CancellationRating
8.0
7,985 reviews
Search Delta flights
United AirlinesPriceFrom $399Free CancellationRating
7.4
8,917 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $407Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $431Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

  • Delta Flights From Seattle to Cancún

    Delta flight deals from Seattle to Cancún start from $373 round-trip. Over the 4 Delta flights for this route in a normal week, average airfare is usually $596 round-trip - but some users have found much cheaper deals with momondo.

  • Aeromexico Flights From Seattle to Cancún

    Aeromexico (7.5/10 from 1,718 reviews) operates around 4 flights from Seattle to Cancún in any given week. The average Aeromexico airfare for this route is around $569, with deals from around $263 rare but found on momondo. Referenced prices are for round-trip Seattle to Cancún flight searches in the last 72 hours.

Traveling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Playa del Carmen
Isla Mujeres
Holbox
Puerto Morelos
Akumal
Puerto Aventuras
Valladolid
Punta Sam

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Cancún?

Finding the right flight to Cancún from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Cancún quick and easy, saving you time and money.

Can I find flights from Seattle to Cancún with flexible booking policies on momondo?

momondo does allow users to show only those flights to Cancún from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Cancún?

momondo helps you find the best flight between Seattle and Cancún by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Cancún right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Seattle to Cancún flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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