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Cheap flights from Seattle to Cancún from C$ 238

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 5/2. 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.
Delta Logo
7:10 a.m. - 4:05 p.m.SEA-CUN
5h 55mdirect
Delta Logo
5:15 p.m. - 9:00 p.m.CUN-SEA
6h 45mdirect
C$ 507Delta
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Thu, 22 Jan - Sun, 25 Jan
Delta Logo
6:15 a.m. - 9:11 p.m.SEA-CUN
11h 56m1 stop
Delta Logo
5:15 p.m. - 9:00 p.m.CUN-SEA
6h 45mdirect
C$ 513Delta
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Tue, 13 Jan - Sun, 18 Jan
Delta Logo
11:10 p.m. - 12:33 p.m.SEA-CUN
10h 23m1 stop
Delta Logo
5:15 p.m. - 9:00 p.m.CUN-SEA
6h 45mdirect
C$ 514Delta
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Sun, 11 Jan - Sat, 17 Jan
Alaska Airlines Logo
10:50 p.m. - 7:40 a.m.SEA-CUN
5h 50mdirect
Alaska Airlines Logo
4:00 p.m. - 7:44 p.m.CUN-SEA
6h 44mdirect
C$ 520Alaska Airlines
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Wed, 31 Dec - Thu, 15 Jan
United Airlines Logo
7:30 p.m. - 7:13 a.m.SEA-CUN
8h 43m1 stop
United Airlines Logo
8:39 a.m. - 6:26 p.m.CUN-SEA
12h 47m2 stops
C$ 534United Airlines
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Mon, 26 Jan - Sat, 31 Jan
United Airlines Logo
11:59 p.m. - 11:25 a.m.SEA-CUN
8h 26m1 stop
United Airlines Logo
4:51 p.m. - 10:59 p.m.CUN-SEA
9h 08m1 stop
C$ 541United Airlines
Find Deal
Wed, 31 Dec - Wed, 14 Jan
Alaska Airlines Logo
8:02 a.m. - 5:05 p.m.SEA-CUN
6h 03mdirect
Alaska Airlines Logo
6:15 p.m. - 11:38 a.m.CUN-SEA
20h 23m2 stops
C$ 562Alaska Airlines
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Sun, 1 Feb - Tue, 3 Mar
Multiple Airlines Logo
12:48 p.m. - 11:36 a.m.SEA-CUN
19h 48m2 stops
Multiple Airlines Logo
7:40 p.m. - 10:22 a.m.CUN-SEA
17h 42m1 stop
C$ 567Multiple Airlines
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Sun, 14 Dec - Sun, 21 Dec
Multiple Airlines Logo
6:00 p.m. - 1:09 p.m.SEA-CUN
16h 09m1 stop
Multiple Airlines Logo
8:10 a.m. - 11:50 a.m.CUN-SEA
6h 40mdirect
C$ 581Multiple Airlines
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Sun, 14 Dec - Sun, 21 Dec
Southwest Logo
5:00 a.m. - 4:20 p.m.SEA-CUN
8h 20m1 stop
Southwest Logo
3:00 p.m. - 12:10 a.m.CUN-SEA
12h 10m2 stops
C$ 595Southwest
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Sun, 22 Feb - Fri, 27 Feb

Frontier flights from Seattle to Cancún

Our best Frontier deals on Seattle to Cancún flight tickets
Frontier
15 Dec
SEA3:40 p.m.Seattle/Tacoma Intl
22h 12m
2 stops
CUN4:52 p.m.Cancun
22 Dec
CUN4:58 p.m.Cancun
22h 32m
1 stop
SEA12:30 p.m.Seattle/Tacoma Intl
C$ 611
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Frontier
15 Dec
SEA3:40 p.m.Seattle/Tacoma Intl
22h 12m
2 stops
CUN4:52 p.m.Cancun
22 Dec
CUN4:58 p.m.Cancun
47h 53m
2 stops
SEA1:51 p.m.Seattle/Tacoma Intl
C$ 635
Find similar

Alaska Airlines flights from Seattle to Cancún

Our best Alaska Airlines deals on Seattle to Cancún flight tickets
Alaska Airlines
31 Dec
SEA10:50 p.m.Seattle/Tacoma Intl
5h 50m
CUN7:40 a.m.Cancun
15 Jan
CUN4:00 p.m.Cancun
6h 44m
SEA7:44 p.m.Seattle/Tacoma Intl
C$ 520
Find similar
Alaska Airlines
1 Feb
SEA8:02 a.m.Seattle/Tacoma Intl
6h 03m
CUN5:05 p.m.Cancun
3 Mar
CUN6:15 p.m.Cancun
20h 23m
2 stops
SEA11:38 a.m.Seattle/Tacoma Intl
C$ 562
Find similar
Alaska Airlines
23 Feb
SEA8:05 a.m.Seattle/Tacoma Intl
6h 00m
CUN5:05 p.m.Cancun
24 Feb
CUN6:15 p.m.Cancun
20h 12m
2 stops
SEA11:27 a.m.Seattle/Tacoma Intl
C$ 569
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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 3 November 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

Thu 22/1

7:10 a.m.-4:05 p.m.

Nonstop5h 55m

Cancun

Sun 25/1

5:15 p.m.-9:00 p.m.

Nonstop6h 45m

C$ 507

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Tue 13/1

6:15 a.m.-9:11 p.m.

1 stop11h 56m

Cancun

Sun 18/1

5:15 p.m.-9:00 p.m.

Nonstop6h 45m

C$ 513

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 11/1

11:10 p.m.-12:33 p.m.

1 stop10h 23m

Cancun

Sat 17/1

5:15 p.m.-9:00 p.m.

Nonstop6h 45m

C$ 514

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Wed 31/12

10:50 p.m.-7:40 a.m.

Nonstop5h 50m

Cancun

Thu 15/1

4:00 p.m.-7:44 p.m.

Nonstop6h 44m

C$ 520

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 26/1

7:30 p.m.-7:13 a.m.

1 stop8h 43m

Cancun

Sat 31/1

8:39 a.m.-6:26 p.m.

2 stops12h 47m

C$ 534

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Wed 31/12

11:59 p.m.-11:25 a.m.

1 stop8h 26m

Cancun

Wed 14/1

4:51 p.m.-10:59 p.m.

1 stop9h 08m

C$ 541

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 1/2

8:02 a.m.-5:05 p.m.

Nonstop6h 03m

Cancun

Tue 3/3

6:15 p.m.-11:38 a.m.

2 stops20h 23m

C$ 562

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 14/12

12:48 p.m.-11:36 a.m.

2 stops19h 48m

Cancun

Sun 21/12

7:40 p.m.-10:22 a.m.

1 stop17h 42m

C$ 567

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 14/12

6:00 p.m.-1:09 p.m.

1 stop16h 09m

Cancun

Sun 21/12

8:10 a.m.-11:50 a.m.

Nonstop6h 40m

C$ 581

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sun 22/2

5:00 a.m.-4:20 p.m.

1 stop8h 20m

Cancun

Fri 27/2

3:00 p.m.-12:10 a.m.

2 stops12h 10m

C$ 595

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$ 660. The month of October is another great option to travel to Cancún, with average flight prices from Seattle averaging around C$ 681.

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. Travellers who choose to depart for Cancún on a Tuesday will often find tickets for as low as C$ 682. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 842. 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 afternoon. Our users have found flights to Cancún in the afternoon for as low as C$ 333. Flights to Cancún are more costly in the evening, with an average ticket price of C$ 873. 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$ 806 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$ 731 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 46% 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 November 2025, prices for Seattle to Cancún flights are approximately 6% 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 46m

Direct flights

Every day

Airports in Cancún

1 airport
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?

    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 50m.

  • 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$ 400Free CancellationRating
7.9
8,001 reviews
Search Delta flights
AeromexicoPriceFrom C$ 460Free CancellationRating
7.4
1,673 reviews
Search Aeromexico flights
Alaska AirlinesPriceFrom C$ 554Free CancellationRating
8.0
11,235 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Seattle to Cancún

    Alaska Airlines flies from Seattle to Cancún around 7 times per week, with 11,235 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Seattle to Cancún in the last 72 hours was C$ 554 (round-trip), much lower than the average airfare cost of C$ 758 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$ 400 round-trip, depending on your selected dates, with average Delta deals seen on momondo around C$ 750. Delta operates 2 flights to Cancún from Seattle in an average week. Users have rated it 7.9/10 across 8,001 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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