$134+ Cheap flights from Seattle (SEA) to Cancún (CUN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CUN
Sep 13 — Sep 201
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Cancún with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Cancun are usually found in January or September, booked 26 days in advance, depart on a Wednesday or Sunday and return on a Saturday
Cheap flight deals from Seattle to Cancún
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to CancúnExplore the most affordable flight options available from Seattle to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2026.
Explore the most affordable flight options available from Seattle to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:27 pm -
2 stops29h 31m
Wed 10/710:40 am -
1 stop11h 19m
Deal found 8/13![Multiple Airlines logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/811:00 pm -
1 stop14h 28m
Tue 10/139:50 pm -
2 stops22h 55m
Deal found 8/13![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:06 am -
2 stops19h 51m
Thu 11/1210:20 am -
1 stop11h 48m
Deal found 8/13![Multiple Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:06 am -
2 stops19h 51m
Tue 11/101:00 pm -
1 stop9h 08m
Deal found 8/13![Multiple Airlines logo]()
$428
This CheapOair deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:05 pm -
1 stop8h 55m
Wed 12/91:00 pm -
1 stop9h 08m
Deal found 8/13![Multiple Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:00 pm -
1 stop11h 04m
Mon 8/315:25 am -
2 stops29h 54m
Deal found 8/11![Multiple Airlines logo]()
$438
This Travelocity deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:05 pm -
1 stop8h 55m
Wed 12/910:20 am -
1 stop11h 48m
Deal found 8/12![Multiple Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:41 pm -
2 stops25h 16m
Thu 11/191:00 pm -
1 stop9h 08m
Deal found 8/13![Multiple Airlines logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/109:07 pm -
1 stop9h 34m
Wed 12/91:00 pm -
1 stop9h 08m
Deal found 8/13![Volaris logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:35 pm -
1 stop19h 20m
Tue 9/15:25 am -
2 stops29h 54m
Deal found 8/12![Multiple Airlines logo]()
$444
Best flights from Seattle to CancúnDiscover carefully curated flight deals from Seattle to Cancún that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2026.
Discover carefully curated flight deals from Seattle to Cancún that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2026.
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:30 pm -
1 stop13h 40m
Thu 9/171:05 pm -
1 stop12h 50m
Deal found 8/13![Southwest logo]()
$582
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/97:15 am -
Nonstop5h 55m
Mon 1/255:20 pm -
Nonstop6h 45m
Deal found 8/13![Delta logo]()
$718
This Alaska Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/67:00 am -
Nonstop6h 02m
Wed 2/104:59 pm -
Nonstop6h 45m
Deal found 8/13![Alaska Airlines logo]()
$718
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:40 pm -
2 stops16h 15m
Thu 11/52:45 pm -
2 stops13h 30m
Deal found 8/12![Southwest logo]()
$590
This Southwest deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:10 am -
2 stops10h 35m
Sun 11/222:45 pm -
2 stops13h 30m
Deal found 8/13![Southwest logo]()
$619
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:10 am -
Nonstop5h 55m
Sun 12/135:15 pm -
Nonstop6h 45m
Deal found 8/13![Delta logo]()
$718
This Alaska Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/57:00 am -
Nonstop6h 02m
Fri 2/194:59 pm -
Nonstop6h 45m
Deal found 8/13![Alaska Airlines logo]()
$718
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/47:15 am -
Nonstop5h 55m
Wed 1/135:20 pm -
Nonstop6h 45m
Deal found 8/11![Delta logo]()
$718
This Delta deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:00 am -
1 stop11h 55m
Wed 11/115:15 pm -
Nonstop6h 45m
Deal found 8/9![Delta logo]()
$734
This Southwest deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:10 pm -
2 stops19h 00m
Sat 8/292:45 pm -
1 stop8h 45m
Deal found 8/9![Southwest logo]()
$737
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:45 am -
2 stops11h 03m
Sun 10/117:01 am -
1 stop14h 54m
Deal found 8/10![Delta logo]()
$746
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:59 pm -
1 stop12h 23m
Sat 9/512:41 pm -
2 stops11h 24m
Deal found 8/10![Delta logo]()
$756
Last-minute flights from Seattle to CancúnDiscover last-minute flight deals from Seattle to Cancún. Data last updated August 14, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Cancún. Data last updated August 14, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:00 pm -
1 stop11h 04m
Mon 8/315:25 am -
2 stops29h 54m
Deal found 8/11![Multiple Airlines logo]()
$438
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:06 pm -
2 stops26h 52m
Sat 11/2110:20 am -
1 stop11h 48m
Deal found 8/13![Multiple Airlines logo]()
$462
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:35 pm -
1 stop27h 39m
Sat 11/2110:20 am -
1 stop11h 48m
Deal found 8/13![Volaris logo]()
$466
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2812:35 pm -
1 stop19h 20m
Tue 9/15:25 am -
2 stops29h 54m
Deal found 8/12![Multiple Airlines logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:27 pm -
2 stops29h 31m
Wed 10/710:40 am -
1 stop11h 19m
Deal found 8/13![Multiple Airlines logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:27 pm -
2 stops29h 31m
Wed 9/307:14 pm -
1 stop26h 45m
Deal found 8/12![Multiple Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:27 pm -
2 stops29h 31m
Wed 10/712:49 pm -
1 stop9h 10m
Deal found 8/10![Multiple Airlines logo]()
$451
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:27 pm -
2 stops29h 31m
Sun 10/410:40 am -
1 stop11h 19m
Deal found 8/10![Multiple Airlines logo]()
$465
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:27 pm -
2 stops29h 31m
Wed 10/712:49 pm -
1 stop9h 10m
Deal found 8/10![Multiple Airlines logo]()
$454
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:27 pm -
2 stops29h 31m
Sun 10/410:40 am -
1 stop11h 19m
Deal found 8/10![Multiple Airlines logo]()
$467
One-way flights from Seattle to CancúnSearch for one-way flight options from Seattle to Cancún. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
Search for one-way flight options from Seattle to Cancún. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:41 pm -
2 stops25h 16m
Deal found 8/13![Multiple Airlines logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/147:41 pm -
2 stops25h 16m
Deal found 8/13![Multiple Airlines logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:41 pm -
2 stops25h 16m
Deal found 8/13![Multiple Airlines logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:25 pm -
2 stops36h 30m
Deal found 8/11![Multiple Airlines logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:41 pm -
2 stops25h 16m
Deal found 8/13![Multiple Airlines logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:15 pm -
2 stops35h 40m
Deal found 8/13![Multiple Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:41 pm -
2 stops25h 16m
Deal found 8/13![Multiple Airlines logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:15 pm -
3 stops35h 45m
Deal found 8/13![Multiple Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:07 pm -
2 stops26h 51m
Deal found 8/11![Multiple Airlines logo]()
$157
Find flight deals from Seattle to Cancún
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Cancún (CUN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $382 (Kiwi.com) |
One-way from | $134 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $594 |
Good round-trip deal | $718 or less |
Good one-way deal | $352 or less |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 14, 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
Cheapest round-trip
SeattleCancún
SEA Seattle/Tacoma Intl - CUN Cancun
SEACUN
Seattle/Tacoma Intl
Thu 9/10
10:30 pm-2:10 pm
1 stop13h 40m
Cancun
Thu 9/17
1:05 pm-11:55 pm
1 stop12h 50m
$582
SeattleCancún
SEA Seattle/Tacoma Intl - CUN Cancun
SEACUN
Seattle/Tacoma Intl
Fri 10/30
8:40 pm-2:55 pm
2 stops16h 15m
Cancun
Thu 11/5
2:45 pm-1:15 am
2 stops13h 30m
$590
SeattleCancún
SEA Seattle/Tacoma Intl - CUN Cancun
SEACUN
Seattle/Tacoma Intl
Wed 11/18
6:10 am-7:45 pm
2 stops10h 35m
Cancun
Sun 11/22
2:45 pm-1:15 am
2 stops13h 30m
$619
Quickest round-trip
SeattleCancún
SEA Seattle/Tacoma Intl - CUN Cancun
SEACUN
Seattle/Tacoma Intl
Sat 1/9
7:15 am-4:10 pm
Nonstop5h 55m
Cancun
Mon 1/25
5:20 pm-9:05 pm
Nonstop6h 45m
$718
SeattleCancún
SEA Seattle/Tacoma Intl - CUN Cancun
SEACUN
Seattle/Tacoma Intl
Sat 2/6
7:00 am-4:02 pm
Nonstop6h 02m
Cancun
Wed 2/10
4:59 pm-8:44 pm
Nonstop6h 45m
$718
SeattleCancún
SEA Seattle/Tacoma Intl - CUN Cancun
SEACUN
Seattle/Tacoma Intl
Wed 12/9
7:10 am-4:05 pm
Nonstop5h 55m
Cancun
Sun 12/13
5:15 pm-9:00 pm
Nonstop6h 45m
$718
SeattleCancún
SEA Seattle/Tacoma Intl - CUN Cancun
SEACUN
Seattle/Tacoma Intl
Fri 2/5
7:00 am-4:02 pm
Nonstop6h 02m
Cancun
Fri 2/19
4:59 pm-8:44 pm
Nonstop6h 45m
$718
SeattleCancún
SEA Seattle/Tacoma Intl - CUN Cancun
SEACUN
Seattle/Tacoma Intl
Mon 1/4
7:15 am-4:10 pm
Nonstop5h 55m
Cancun
Wed 1/13
5:20 pm-9:05 pm
Nonstop6h 45m
$718
SeattleCancún
SEA Seattle/Tacoma Intl - CUN Cancun
SEACUN
Seattle/Tacoma Intl
Thu 11/5
6:00 am-8:55 pm
1 stop11h 55m
Cancun
Wed 11/11
5:15 pm-9:00 pm
Nonstop6h 45m
$734
SeattleCancún
SEA Seattle/Tacoma Intl - CUN Cancun
SEACUN
Seattle/Tacoma Intl
Tue 8/25
4:10 pm-1:10 pm
2 stops19h 00m
Cancun
Sat 8/29
2:45 pm-9:30 pm
1 stop8h 45m
$737
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Seattle to Cancún
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Cancún in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Seattle-Cancún flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Cancún flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Cancún flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Cancún flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Cancún flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Cancún
Have a flexible travel schedule? Discover the best time to fly to Cancún from Seattle with our price prediction graph.
SEA-CUN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Cancún
How far ahead should I book a flight from Seattle to Cancún?
Booking 25 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Cancún. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Seattle to Cancún?
Currently, January is the cheapest month in which you can book a flight from Seattle to Cancún (average of $482). Flying from Seattle to Cancún in December is currently the most expensive (average of $719). 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 Seattle to Cancún?
Airfare is below average for this route at the moment.
Seattle to Cancún flights typically cost between $482 and $732 in September.The cheapest round-trip price found within the last 5 days was $382 on Multiple Airlines (Sep 23-Oct 7).
The best insider tips for Seattle to Cancún flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Cancún trip
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Reviews of airlines servicing Cancún
Get insights into the airlines that provide service to Cancún. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cancún. Reviews last updated August 14, 2026.
Read reviews from past customers who have flown Alaska Airlines,Delta, andAeromexico from Seattle to Cancún. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
6.0
GoodAnonymous,Jul 2026
SEA - LHR
Related info for your journey
Find useful and relevant information for your journey from Seattle to Cancún. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Cancún?
Book flights to Cancún if you plan to visit one of these locationsPuerto Aventuras
Punta Sam
Holbox
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Other flights to Cancún
Explore flights to Cancún departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 14, 2026.
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Seattle and Cancún flights
Browse other Seattle and Cancún flight options. Last updated on August 14, 2026.
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Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on August 14, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 10 airlines flying from Seattle to Cancún
Discover the top 10 airlines that operate flights from Seattle to Cancún. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$194 | Average$444 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$211 | Average$448 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$219 | Average$558 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$229 | Average$531 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$240 | Average$670 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$284 | Average$615 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$371 | Average$652 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$428 | Average$687 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$456 | Average$748 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$457 | Average$611 | FlexibilityNo cancel fee | On-time67% |