Cheap flights from Cancún to Seattle from C$ 420

CUN — SEA
9 Dec — 16 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Cancún to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Cancún to Seattle

Fri 25/128:39 a.m. -
2 stops15h 46m
Wed 30/1211:44 p.m. -
1 stop11h 15m
Deal found 6/11C$ 751
Tue 22/125:14 p.m. -
1 stop9h 56m
Tue 29/127:16 a.m. -
Nonstop6h 04m
Deal found 6/11C$ 752
Wed 23/128:39 a.m. -
2 stops16h 53m
Wed 30/125:00 a.m. -
1 stop10h 55m
Deal found 8/11C$ 756
Fri 18/125:25 p.m. -
Nonstop6h 40m
Fri 25/125:30 a.m. -
1 stop7h 44m
Deal found 7/11C$ 804
Wed 23/127:00 a.m. -
1 stop17h 59m
Thu 7/15:00 a.m. -
1 stop9h 08m
Deal found 8/11C$ 816
Thu 3/125:25 p.m. -
Nonstop6h 40m
Tue 8/127:16 a.m. -
Nonstop6h 04m
Deal found 6/11C$ 825
Thu 3/125:10 p.m. -
Nonstop6h 47m
Sun 6/127:03 a.m. -
Nonstop5h 57m
Deal found 4/11C$ 832
Thu 3/128:39 a.m. -
2 stops12h 49m
Sun 6/1211:59 p.m. -
1 stop8h 21m
Deal found 6/11C$ 834
Tue 1/125:25 p.m. -
Nonstop6h 40m
Tue 8/127:16 a.m. -
Nonstop6h 04m
Deal found 6/11C$ 885

Find flight deals from Cancún to Seattle

Round-trip from

C$ 751

One-way from

C$ 420

Popular in

August

Cheapest in

April

Average price

C$ 535
United Airlines
  • United Airlines
  • 25/12-30/12
  • 2 total stops
  • 20h 20m total
  • Cancún to Seattle
Volaris
  • Volaris
  • 31/1-31/12
  • 1 total stop
  • 11h 48m total
  • Cancún to Seattle
Highest demand for flights based on searches. 12% potential increase in price (C$ 152 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease (C$ 38 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Cancún to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CancúnSeattle

CUN Cancun - SEA Seattle/Tacoma Intl

CUNSEA

Cancun

Thu 18/2

1:35 p.m.-9:47 a.m.

1 stop23h 12m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 429

CancúnSeattle

CUN Cancun - SEA Seattle/Tacoma Intl

CUNSEA

Cancun

Tue 22/12

7:00 a.m.-9:59 p.m.

1 stop17h 59m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 429

CancúnSeattle

CUN Cancun - SEA Seattle/Tacoma Intl

CUNSEA

Cancun

Sun 2/5

1:00 p.m.-8:08 p.m.

1 stop9h 08m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 452
Quickest round-trip

CancúnSeattle

CUN Cancun - SEA Seattle/Tacoma Intl

CUNSEA

Cancun

Wed 6/1

5:30 p.m.-9:13 p.m.

Nonstop6h 43m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 480

CancúnSeattle

CUN Cancun - SEA Seattle/Tacoma Intl

CUNSEA

Cancun

Mon 14/12

5:10 p.m.-8:57 p.m.

Nonstop6h 47m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 481

CancúnSeattle

CUN Cancun - SEA Seattle/Tacoma Intl

CUNSEA

Cancun

Sat 9/1

8:39 a.m.-9:59 p.m.

2 stops16h 20m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 502

CancúnSeattle

CUN Cancun - SEA Seattle/Tacoma Intl

CUNSEA

Cancun

Sun 2/5

4:25 p.m.-9:10 p.m.

Nonstop6h 45m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 508

CancúnSeattle

CUN Cancun - SEA Seattle/Tacoma Intl

CUNSEA

Cancun

Mon 14/12

8:39 a.m.-11:44 p.m.

3 stops18h 05m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 512

CancúnSeattle

CUN Cancun - SEA Seattle/Tacoma Intl

CUNSEA

Cancun

Fri 25/12

8:20 a.m.-3:48 p.m.

1 stop10h 28m

Seattle/Tacoma Intl

Wed 30/12

7:16 a.m.-4:20 p.m.

Nonstop6h 04m

C$ 751

CancúnSeattle

CUN Cancun - SEA Seattle/Tacoma Intl

CUNSEA

Cancun

Wed 23/12

8:39 a.m.-10:32 p.m.

2 stops16h 53m

Seattle/Tacoma Intl

Wed 30/12

5:00 a.m.-6:55 p.m.

1 stop10h 55m

C$ 756

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/11

Showing 1-10 of 15 resultsSorted by cheapest first
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Best time to book a flight from Cancún to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Cancún with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Cancún to Seattle

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

Currently, April is the cheapest month in which you can book a flight from Cancún to Seattle (average of C$ 504). Flying from Cancún to Seattle in August is currently the most expensive (average of C$ 1,038). 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.

How much does it cost to fly round-trip from Cancún to Seattle?

Airfare is above average for this route at the moment.

Cancún to Seattle flights typically cost between C$ 468 and C$ 748 in December.
The cheapest round-trip price found within the last 5 days was C$ 751 on United Airlines (25 Dec-30 Dec).

Related info for your journey

  • How popular is this Cancún to Seattle flight route?

  • How long is the flight from Cancún to Seattle?

    There are many flights that can get you from Cancún to Seattle in 10h 28m. Fly via Delta or United Airlines to get the fastest option. There are 4318 km between Cancún and Seattle. Both multi-stop and direct flights can be found to your destination and back.

  • Can I find deals for flights from Cancún to Seattle that include hotel bookings?

    Yes. In addition to deals on Cancún to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Cancún to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cancún to Seattle.

  • Can I find deals for business class flights from Cancún to Seattle?

    Yes. Cheapflights offers flight deals from Cancún to Seattle 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 Cancún to Seattle?

    Currently, April is the cheapest month in which you can book a flight from Cancún to Seattle (average of C$ 504). Flying from Cancún to Seattle in August is currently the most expensive (average of C$ 1,038). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Kent
Tukwila
Mukilteo
Ellensburg
Renton
Lynnwood
Cashmere
Tacoma
Marysville
Federal Way
Kirkland
Leavenworth

Browse thousands of different options on Cheapflights for your next trip

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