What is the cheapest airline that flies from Seattle/Tacoma Intl to Cancun?

Delta, Southwest, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Cancun

Which airlines fly to Cancún?

Aeromexico, Alaska Airlines and Delta are the top three most popular airlines that fly to Cancún from Seattle according to our data. Aeromexico is the first choice among our users, with 40% of people opting to fly with this airline when travelling to Cancún. Keep in mind that there are 3 different airlines that fly to Cancún on a routine basis, so you have a few additional options to choose from.

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?

The number of operators available for flights from Seattle/Tacoma Intl Airport to Cancun Airport is 3 as of September 2025.

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.

C$ 206 Cheap Flights from Seattle to Cancún in 2025/26

1 adult

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Find the cheapest flights from Seattle to Cancún

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

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

8h 26m1 stop

5:50 p.m. - 12:59 a.m.CUN-SEA

10h 09m1 stop

C$ 492United Airlines

Find Deal

Tue, 4 Nov - Sat, 22 Nov

7:15 a.m. - 4:09 p.m.SEA-CUN

5h 54mdirect

5:25 p.m. - 9:16 p.m.CUN-SEA

6h 51mdirect

C$ 499Delta

Find Deal

Mon, 5 Jan - Sat, 10 Jan

5:00 a.m. - 2:55 p.m.SEA-CUN

7h 55m1 stop

1:00 p.m. - 11:45 p.m.CUN-SEA

12h 45m2 stops

C$ 525Southwest

Find Deal

Sat, 25 Oct - Wed, 29 Oct

11:56 p.m. - 12:15 p.m.SEA-CUN

10h 19m1 stop

1:15 p.m. - 8:59 p.m.CUN-SEA

10h 44m1 stop

C$ 533American Airlines

Find Deal

Sat, 1 Nov - Sat, 8 Nov

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

6h 08mdirect

5:30 p.m. - 4:50 p.m.CUN-SEA

25h 20m1 stop

C$ 551Alaska Airlines

Find Deal

Tue, 14 Oct - Wed, 22 Oct

8:20 p.m. - 4:05 p.m.SEA-CUN

16h 45m2 stops

4:30 p.m. - 12:05 a.m.CUN-SEA

10h 35m1 stop

C$ 553Southwest

Find Deal

Fri, 14 Nov - Mon, 24 Nov

7:00 a.m. - 4:00 p.m.SEA-CUN

6h 00mdirect

1:10 p.m. - 8:05 p.m.CUN-SEA

9h 55m1 stop

C$ 576Multiple Airlines

Find Deal

Sat, 7 Feb - Sun, 15 Feb

7:09 a.m. - 4:49 p.m.SEA-CUN

30h 40m1 stop

5:10 p.m. - 8:58 p.m.CUN-SEA

6h 48mdirect

C$ 605Alaska Airlines

Find Deal

Sat, 3 Jan - Fri, 9 Jan

12:41 a.m. - 2:18 p.m.SEA-CUN

10h 37m1 stop

2:34 p.m. - 11:18 p.m.CUN-SEA

11h 44m1 stop

C$ 611American Airlines

Find Deal

Mon, 10 Nov - Sat, 15 Nov

10:16 a.m. - 8:04 a.m.SEA-CUN

19h 48m2 stops

4:55 p.m. - 12:59 p.m.CUN-SEA

22h 04m1 stop

C$ 620Multiple Airlines

Find Deal

Mon, 13 Oct - Mon, 20 Oct

United Airlines flights from Seattle to Cancún

Our best United Airlines deals on Seattle to Cancún flight tickets

United Airlines

4 Nov

SEA11:59 p.m.Seattle/Tacoma Intl

8h 26m

1 stop

CUN11:25 a.m.Cancun

22 Nov

CUN5:50 p.m.Cancun

10h 09m

1 stop

SEA12:59 a.m.Seattle/Tacoma Intl

C$ 492

Find similar

United Airlines

25 Oct

SEA11:10 p.m.Seattle/Tacoma Intl

9h 20m

1 stop

CUN10:30 a.m.Cancun

4 Nov

CUN3:18 p.m.Cancun

10h 27m

1 stop

SEA10:45 p.m.Seattle/Tacoma Intl

C$ 519

Find similar

United Airlines

21 Feb

SEA6:45 a.m.Seattle/Tacoma Intl

8h 05m

1 stop

CUN5:50 p.m.Cancun

28 Feb

CUN8:39 a.m.Cancun

12h 31m

2 stops

SEA6:10 p.m.Seattle/Tacoma Intl

C$ 591

Find similar

Delta flights from Seattle to Cancún

Our best Delta deals on Seattle to Cancún flight tickets

Delta

5 Jan

SEA7:15 a.m.Seattle/Tacoma Intl

5h 54m

CUN4:09 p.m.Cancun

10 Jan

CUN5:25 p.m.Cancun

6h 51m

SEA9:16 p.m.Seattle/Tacoma Intl

C$ 499

Find similar

Delta

5 Jan

SEA11:05 p.m.Seattle/Tacoma Intl

12h 05m

1 stop

CUN2:10 p.m.Cancun

10 Jan

CUN5:25 p.m.Cancun

6h 51m

SEA9:16 p.m.Seattle/Tacoma Intl

C$ 504

Find similar

Delta

19 Feb

SEA4:55 p.m.Seattle/Tacoma Intl

15h 10m

2 stops

CUN11:05 a.m.Cancun

25 Feb

CUN6:00 a.m.Cancun

17h 00m

1 stop

SEA8:00 p.m.Seattle/Tacoma Intl

C$ 511

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Tue 4/11

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

1 stop8h 26m

Cancun

Sat 22/11

5:50 p.m.-12:59 a.m.

1 stop10h 09m

C$ 492

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 5/1

7:15 a.m.-4:09 p.m.

Nonstop5h 54m

Cancun

Sat 10/1

5:25 p.m.-9:16 p.m.

Nonstop6h 51m

C$ 499

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 25/10

5:00 a.m.-2:55 p.m.

1 stop7h 55m

Cancun

Wed 29/10

1:00 p.m.-11:45 p.m.

2 stops12h 45m

C$ 525

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 1/11

11:56 p.m.-12:15 p.m.

1 stop10h 19m

Cancun

Sat 8/11

1:15 p.m.-8:59 p.m.

1 stop10h 44m

C$ 533

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Tue 14/10

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

Nonstop6h 08m

Cancun

Wed 22/10

5:30 p.m.-4:50 p.m.

1 stop25h 20m

C$ 551

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Fri 14/11

8:20 p.m.-4:05 p.m.

2 stops16h 45m

Cancun

Mon 24/11

4:30 p.m.-12:05 a.m.

1 stop10h 35m

C$ 553

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 7/2

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

Nonstop6h 00m

Cancun

Sun 15/2

1:10 p.m.-8:05 p.m.

1 stop9h 55m

C$ 576

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Sat 3/1

7:09 a.m.-4:49 p.m.

1 stop30h 40m

Cancun

Fri 9/1

5:10 p.m.-8:58 p.m.

Nonstop6h 48m

C$ 605

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 10/11

12:41 a.m.-2:18 p.m.

1 stop10h 37m

Cancun

Sat 15/11

2:34 p.m.-11:18 p.m.

1 stop11h 44m

C$ 611

SeattleCancún

SEA - CUN

SEACUN

Seattle/Tacoma Intl

Mon 13/10

10:16 a.m.-8:04 a.m.

2 stops19h 48m

Cancun

Mon 20/10

4:55 p.m.-12:59 p.m.

1 stop22h 04m

C$ 620

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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$ 676. The month of August is another great option to travel to Cancún, with average flight prices from Seattle averaging around C$ 689.

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$ 673. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 810. 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$ 329. Flights to Cancún are more costly in the evening, with an average ticket price of C$ 803. 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$ 799 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$ 721 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 59% 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 September 2025, prices for Seattle to Cancún flights are approximately 5% 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	C$ 587
Fastest flight time	5h 46m
Direct flights	Every day
Airports in Cancún	1 airport

The best flight deal from Seattle to Cancún found on momondo in the last 72 hours is C$ 587

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 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 are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Cancun Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Cancun Airport is 3 as of September 2025.
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?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Cancún is Airbus A321neo, representing 72.39% of all bookings. The subsequent popular models are Boeing 737-900 Passenger/BBJ3 (winglets) at 13.66%, Boeing 737 MAX 9 at 7.59%, and Boeing 737 at 2.42%.
What is the most popular airline from Seattle to Cancún?
momondo data reveals that the most frequently booked airline on the route from Seattle to Cancún is Aeromexico, representing 40% of all bookings. The subsequent popular airlines are Alaska Airlines at 36% and Delta at 24%.

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
Delta	PriceFrom C$ 395	Free Cancellation	Rating 7.9 7,957 reviews	Search Delta flights
Aeromexico	PriceFrom C$ 454	Free Cancellation	Rating 7.4 1,696 reviews	Search Aeromexico flights
Alaska Airlines	PriceFrom C$ 546	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights

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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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Cheap flights from Seattle to Cancún from C$ 206

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 30/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Cheap round-trip flights

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Cheap last-minute flights

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United Airlines flights from Seattle to Cancún

Our best United Airlines deals on Seattle to Cancún flight tickets

Delta flights from Seattle to Cancún

Our best Delta deals on Seattle to Cancún flight tickets

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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?

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

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

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?

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 59% 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 September 2025, prices for Seattle to Cancún flights are approximately 5% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Seattle/Tacoma Intl to Cancun?

Delta, Southwest, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Cancun

Which airlines fly to Cancún?

When to book flights from Seattle to Cancún

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

Fastest flight time

Direct flights

Airports in Cancún

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

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

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?

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

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

Travelling to a place near Cancún?

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Cancún trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Mexico

Airports servicing Quintana Roo