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Cheap flights from Seattle to Cancún from C$ 286

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 2/3. 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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Find the cheapest flights from Seattle to Cancún

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:00 p.m. - 9:48 a.m.
SEA
-
CUN
9h 48m
1 stop
Multiple Airlines Logo
12:16 p.m. - 11:19 a.m.
CUN
-
SEA
25h 03m
2 stops
C$ 475Multiple Airlines
Sun, 15 Mar - Wed, 25 Mar
Multiple Airlines Logo
11:32 a.m. - 9:48 a.m.
SEA
-
CUN
19h 16m
2 stops
Multiple Airlines Logo
12:24 p.m. - 10:00 p.m.
CUN
-
SEA
12h 36m
1 stop
C$ 478Multiple Airlines
Sat, 21 Feb - Thu, 26 Feb
Multiple Airlines Logo
10:00 p.m. - 9:48 a.m.
SEA
-
CUN
9h 48m
1 stop
Multiple Airlines Logo
10:40 a.m. - 8:37 a.m.
CUN
-
SEA
23h 57m
1 stop
C$ 482Multiple Airlines
Sun, 15 Mar - Mon, 23 Mar
Multiple Airlines Logo
10:00 p.m. - 9:48 a.m.
SEA
-
CUN
9h 48m
1 stop
Multiple Airlines Logo
10:40 a.m. - 10:05 p.m.
CUN
-
SEA
13h 25m
1 stop
C$ 483Multiple Airlines
Sun, 15 Mar - Tue, 24 Mar
Multiple Airlines Logo
10:00 p.m. - 9:48 a.m.
SEA
-
CUN
9h 48m
1 stop
Multiple Airlines Logo
12:16 p.m. - 9:03 p.m.
CUN
-
SEA
34h 47m
2 stops
C$ 489Multiple Airlines
Sun, 15 Mar - Tue, 24 Mar
Multiple Airlines Logo
10:00 p.m. - 9:48 a.m.
SEA
-
CUN
9h 48m
1 stop
Multiple Airlines Logo
11:52 a.m. - 9:03 p.m.
CUN
-
SEA
35h 11m
2 stops
C$ 493Multiple Airlines
Sun, 15 Mar - Mon, 23 Mar
Multiple Airlines Logo
10:00 p.m. - 9:48 a.m.
SEA
-
CUN
9h 48m
1 stop
Multiple Airlines Logo
5:15 p.m. - 5:09 p.m.
CUN
-
SEA
25h 54m
1 stop
C$ 494Multiple Airlines
Sun, 15 Mar - Wed, 25 Mar
Multiple Airlines Logo
11:32 a.m. - 9:48 a.m.
SEA
-
CUN
19h 16m
2 stops
Multiple Airlines Logo
11:59 a.m. - 8:16 p.m.
CUN
-
SEA
11h 17m
1 stop
C$ 501Multiple Airlines
Sat, 21 Feb - Wed, 25 Feb
Multiple Airlines Logo
6:24 p.m. - 12:05 p.m.
SEA
-
CUN
15h 41m
2 stops
Multiple Airlines Logo
10:40 a.m. - 10:05 p.m.
CUN
-
SEA
13h 25m
1 stop
C$ 519Multiple Airlines
Sat, 21 Mar - Tue, 24 Mar
Multiple Airlines Logo
6:24 p.m. - 12:05 p.m.
SEA
-
CUN
15h 41m
2 stops
Multiple Airlines Logo
10:40 a.m. - 10:05 p.m.
CUN
-
SEA
13h 25m
1 stop
C$ 534Multiple Airlines
Thu, 19 Mar - Tue, 24 Mar

Delta flights from Seattle to Cancún

Our best Delta deals on Seattle to Cancún flight tickets
Delta
16 Mar
SEA7:15 a.m.Seattle/Tacoma Intl
6h 02m
CUN3:17 p.m.Cancun
25 Mar
CUN4:17 p.m.Cancun
6h 46m
SEA9:03 p.m.Seattle/Tacoma Intl
C$ 640
Delta
22 Feb
SEA11:15 p.m.Seattle/Tacoma Intl
9h 00m
1 stop
CUN11:15 a.m.Cancun
26 Feb
CUN5:12 p.m.Cancun
6h 43m
SEA8:55 p.m.Seattle/Tacoma Intl
C$ 643
Delta
2 Mar
SEA7:10 a.m.Seattle/Tacoma Intl
5h 52m
CUN4:02 p.m.Cancun
10 Mar
CUN4:17 p.m.Cancun
6h 44m
SEA9:01 p.m.Seattle/Tacoma Intl
C$ 644

Frontier flights from Seattle to Cancún

Our best Frontier deals on Seattle to Cancún flight tickets
Frontier
21 Feb
SEA1:16 p.m.Seattle/Tacoma Intl
18h 22m
2 stops
CUN10:38 a.m.Cancun
26 Feb
CUN12:24 p.m.Cancun
26h 01m
2 stops
SEA11:25 a.m.Seattle/Tacoma Intl
C$ 579
Frontier
17 Mar
SEA6:24 p.m.Seattle/Tacoma Intl
19h 53m
2 stops
CUN4:17 p.m.Cancun
24 Mar
CUN9:53 a.m.Cancun
37h 10m
2 stops
SEA9:03 p.m.Seattle/Tacoma Intl
C$ 609
Frontier
22 Feb
SEA9:23 p.m.Seattle/Tacoma Intl
16h 54m
2 stops
CUN5:17 p.m.Cancun
25 Feb
CUN2:24 p.m.Cancun
20h 49m
2 stops
SEA8:13 a.m.Seattle/Tacoma Intl
C$ 610

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 96,600 searches. Data last updated 2 February 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

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 15/3

10:00 p.m.-9:48 a.m.

1 stop9h 48m

Cancun

Wed 25/3

12:16 p.m.-11:19 a.m.

2 stops25h 03m

C$ 475

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 21/2

11:32 a.m.-9:48 a.m.

2 stops19h 16m

Cancun

Thu 26/2

12:24 p.m.-10:00 p.m.

1 stop12h 36m

C$ 478

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 15/3

10:00 p.m.-9:48 a.m.

1 stop9h 48m

Cancun

Mon 23/3

10:40 a.m.-8:37 a.m.

1 stop23h 57m

C$ 482

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 15/3

10:00 p.m.-9:48 a.m.

1 stop9h 48m

Cancun

Tue 24/3

10:40 a.m.-10:05 p.m.

1 stop13h 25m

C$ 483

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 15/3

10:00 p.m.-9:48 a.m.

1 stop9h 48m

Cancun

Tue 24/3

12:16 p.m.-9:03 p.m.

2 stops34h 47m

C$ 489

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 15/3

10:00 p.m.-9:48 a.m.

1 stop9h 48m

Cancun

Mon 23/3

11:52 a.m.-9:03 p.m.

2 stops35h 11m

C$ 493

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 15/3

10:00 p.m.-9:48 a.m.

1 stop9h 48m

Cancun

Wed 25/3

5:15 p.m.-5:09 p.m.

1 stop25h 54m

C$ 494

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 21/2

11:32 a.m.-9:48 a.m.

2 stops19h 16m

Cancun

Wed 25/2

11:59 a.m.-8:16 p.m.

1 stop11h 17m

C$ 501

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 21/3

6:24 p.m.-12:05 p.m.

2 stops15h 41m

Cancun

Tue 24/3

10:40 a.m.-10:05 p.m.

1 stop13h 25m

C$ 519

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Thu 19/3

6:24 p.m.-12:05 p.m.

2 stops15h 41m

Cancun

Tue 24/3

10:40 a.m.-10:05 p.m.

1 stop13h 25m

C$ 534

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?

In general, September is the cheapest month to fly from Seattle to Cancún. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 639. The month of October is another great option to travel to Cancún, with average flight prices from Seattle averaging around C$ 639.

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

The cheapest day to depart from Seattle to Cancún is on a Thursday. Travellers who choose to depart for Cancún on a Thursday will often find tickets for as low as C$ 578. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 838. 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 data shows that the cheapest Seattle to Cancún flights are usually those with departure times in the morning. Our users have found flights to Cancún in the morning for as low as C$ 717. Flights to Cancún are more costly in the evening, with an average ticket price of C$ 791. 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 C$ 768 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 C$ 690 on momondo.

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

There are 2 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?

You could potentially save up to 64% on your flight if you consider stops on a Seattle to Cancún flight.

How have Seattle to Cancún flight prices changed over time?

As of February 2026, prices for Seattle to Cancún flights are approximately 29% 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

Fastest flight time

5h 52m

Direct flights

Every day

Airports in Cancún

1 airport
The fastest flight from Seattle to Cancún takes 5h 52m
Direct flights go from Seattle to Cancún every day.
There is 1 airport in Cancún. From Seattle there are direct flights to Cancun (CUN).
Search flight deals

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

    A flight from Seattle/Tacoma Intl to Cancun will travel around 4321.5 km. In terms of flight time, this usually takes a little over 5h 52m.

  • 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 are updated 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?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, 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
DeltaPriceFrom C$ 282Free CancellationRating
7.9
8,128 reviews
Search Delta flights
AeromexicoPriceFrom C$ 429Free CancellationRating
7.4
1,583 reviews
Search Aeromexico flights
Alaska AirlinesPriceFrom C$ 541Free CancellationRating
8.0
11,825 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Seattle to Cancún

    Alaska Airlines flies from Seattle to Cancún around 6 times per week, with 11,825 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Seattle to Cancún in the last 72 hours was C$ 541 (round-trip), much lower than the average airfare cost of C$ 761 for Alaska Airlines flights on this route.

  • Delta Flights From Seattle to Cancún

    Delta is also a popular choice for this route. Delta flight deals for Seattle to Cancún start from as low as C$ 282 round-trip, depending on your selected dates, with average Delta deals seen on momondo around C$ 654. Delta operates 7 flights to Cancún from Seattle in an average week. Users have rated it 7.9/10 across 8,128 reviews.

Travelling to a place near Cancún?

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

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Cancún . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Cancún from Seattle with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Cancún.

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

Yes. momondo can track prices for Seattle to Cancún flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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