A coastal cityscape with a beach, clear turquoise waters, and high-rise hotels.

CA $311 Cheap Flights from Seattle (SEA) to Cancun (CUN)

View CA $311 flight on Sun, Oct 25, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Cancun Intl. Airport (CUN)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Seattle (SEA) to Cancun (CUN)

Prices were available within the past 7 days and start at CA $311 for one-way flights and CA $640 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, Oct 29 - Tue, Nov 3
SEA
Seattle
CUN
Cancun
CA $640 Roundtrip, found 5 days ago
CA $640
Roundtrip
found 5 days ago
Select Air Canada flight, departing Thu, Oct 29 from Seattle to Cancun, returning Tue, Nov 3, priced at CA $640 found 5 days ago
Air Canada
Sat, Oct 24 - Fri, Oct 30
SEA
Seattle
CUN
Cancun
CA $644 Roundtrip, found 6 days ago
CA $644
Roundtrip
found 6 days ago
Select Air Canada flight, departing Sat, Oct 24 from Seattle to Cancun, returning Fri, Oct 30, priced at CA $644 found 6 days ago
Air Canada
Thu, Dec 3 - Sun, Dec 6
SEA
Seattle
CUN
Cancun
CA $646 Roundtrip, found 1 day ago
CA $646
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Dec 3 from Seattle to Cancun, returning Sun, Dec 6, priced at CA $646 found 1 day ago
Air Canada
Mon, Nov 2 - Fri, Nov 6
SEA
Seattle
CUN
Cancun
CA $647 Roundtrip, found 3 days ago
CA $647
Roundtrip
found 3 days ago
Select Air Canada flight, departing Mon, Nov 2 from Seattle to Cancun, returning Fri, Nov 6, priced at CA $647 found 3 days ago
Air Canada
Fri, Oct 2 - Thu, Oct 8
SEA
Seattle
CUN
Cancun
CA $650 Roundtrip, found 4 days ago
CA $650
Roundtrip
found 4 days ago
Select Air Canada flight, departing Fri, Oct 2 from Seattle to Cancun, returning Thu, Oct 8, priced at CA $650 found 4 days ago
Air Canada
Tue, Nov 3 - Tue, Nov 10
SEA
Seattle
CUN
Cancun
CA $651 Roundtrip, found 4 days ago
CA $651
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Nov 3 from Seattle to Cancun, returning Tue, Nov 10, priced at CA $651 found 4 days ago
Volaris
Wed, Feb 3 - Sun, Feb 7
SEA
Seattle
CUN
Cancun
CA $768 Roundtrip, found 6 hours ago
CA $768
Roundtrip
found 6 hours ago
Select Volaris flight, departing Wed, Feb 3 from Seattle to Cancun, returning Sun, Feb 7, priced at CA $768 found 6 hours ago
Delta
Tue, Dec 1 - Sat, Dec 19
SEA
Seattle
CUN
Cancun
CA $822 Roundtrip, found 1 day ago
CA $822
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Dec 1 from Seattle to Cancun, returning Sat, Dec 19, priced at CA $822 found 1 day ago
Aeromexico
Sun, Nov 15 - Sun, Nov 22
SEA
Seattle
CUN
Cancun
CA $911 Roundtrip, found 1 hour ago
CA $911
Roundtrip
found 1 hour ago
Select Aeromexico flight, departing Sun, Nov 15 from Seattle to Cancun, returning Sun, Nov 22, priced at CA $911 found 1 hour ago
Alaska Airlines
Fri, Dec 4 - Sun, Dec 20
SEA
Seattle
CUN
Cancun
CA $911 Roundtrip, found 1 day ago
CA $911
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Dec 4 from Seattle to Cancun, returning Sun, Dec 20, priced at CA $911 found 1 day ago

Alternative airports near Cancun

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cancun Intl. CUN. Cheapest and Closest option available. Average driving time to city centre is 18 minutes. Flights from CA $1,042
CUN
Cancun Intl.
CheapestClosest
Average driving time to city centre18 min
Flights from CA $1,042

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) cost?
You can find cheap one-way flights from CA $311 and cheap return flights from CA $640 SEA to CUN with Expedia. One-way flights typically cost between CA$271 and CA$1328, and return flights often range between CA$748 and CA$3656. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when SEA to CUN ticket fares go up or down.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
If you're looking for the cheapest time to fly from Seattle - Tacoma Intl. (SEA) to Cancun Intl. (CUN), September is typically your best bet! You can expect average return fares around CA$592 during this month. September often sees lower prices because it falls outside of peak holiday seasons and summer travel, when demand tends to decrease. Other budget-friendly months to consider for your trip include January and October.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
Only one airline offers direct flights from Seattle - Tacoma Intl. (SEA) to Cancun Intl. (CUN). Delta operates 7 direct flights from Seattle - Tacoma Intl. to Cancun Intl. every week.
What is the cheapest airline that flies from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
Sun Country Airlines offers one of the cheapest connecting return flights from Seattle - Tacoma Intl. (SEA) to Cancun Intl. (CUN), with tickets starting from around CA$707. Delta is one of the cheapest airlines offering nonstop return flights from Seattle - Tacoma Intl. (SEA) to Cancun Intl. (CUN), with tickets starting from around CA$793 for flights that can be booked for departure within the next year. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The best airline to fly with from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) will differ from traveler to traveler. If you like to fly early, Delta offers early morning flights. If price is the most important factor, Delta typically offers the lowest fares. Delta offers the most daily flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Seattle, WA (SEA) to Cancun, Quintana Roo (CUN)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
When flying from Seattle - Tacoma Intl. (SEA) to Cancun Intl. (CUN), you'll find approximately 128 connecting flights per day. This gives you plenty of options to choose from. Some common connection points include Vancouver Intl. (YVR), Los Angeles Intl. (LAX), and Denver Intl. (DEN).
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The earliest flight from Seattle - Tacoma Intl. (SEA) to Cancun Intl. (CUN) typically departs around 12:05 AM local time. This flight is operated by American Airlines. This is a seasonal service, active in June. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
You'll typically find the most flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) on a Friday, with around 66 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Delta, United, and Alaska Airlines. Friday offers notably more flight options compared to other days of the week, making it a great day to plan your departure.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Cancun Intl. (CUN) are in the early morning, from 6am to 9am. Many major carriers, including Delta, Alaska Airlines and American Airlines, offer flights during this window. Many travellers prefer these early flights as they allow you to arrive at your destination with plenty of time to start your vacation.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
A nonstop flight from Seattle - Tacoma Intl. (SEA) to Cancun Intl. (CUN) typically takes around 6 hours. This route covers a distance of approximately 4320 kilometres. If you opt for a flight with one stop, your travel time will be longer, usually around 11 hours. Flights with two or more stops can take even longer, often around 21 hours. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
Yes, you can fly business class or first class between SEA and CUN. Airlines that offer business class service on this route include:
  • Aeromexico
  • Frontier Airlines
  • Air Canada
  • Delta
  • Hawaiian Airlines
  • United
  • American Airlines
First class cabins are available on Alaska Airlines.
How much is a business class flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
A direct, return business class ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) typically costs between CA$2,100 - CA$4,697. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) if you opt for a connecting flight.
How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Cancun, Quintana Roo (CUN) from Seattle, WA (SEA)?
If you're planning to travel to Cancun from Seattle - Tacoma Intl. (SEA), you can fly directly into Cancun Intl. (CUN). Some flights may connect through major hubs like San Francisco Intl. (SFO), Los Angeles Intl. (LAX), or Sky Harbor Intl. (PHX) before reaching Cancun. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cancun, Quintana Roo (CUN-Cancun Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Cancun Intl.
Airlines serving
Aeromexico, Air Canada, Alaska Airlines, American Airlines, Delta, Sun Country Airlines, United, Volaris
Roundtrip price
CA $639
Distance
4294 km

Book with confidence

Seattle to Cancun Flights

The easy way to book your flights from Seattle to Cancun 

With Expedia, it’s simple to find and book flights to Cancun from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Cancun Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Cancun today, tomorrow, or this week.  

 

Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Cancun Intl., CUN 

Sort your search results by price to find great deals on your flight from Seattle to Cancun—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Cancun from Seattle currently is just CA $640 rising to CA $911.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Cancun  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Cancun from Seattle 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Cancun with Expedia today.

Seattle to Cancun Flights

Explore a world of travel with Expedia

*Available to Expedia members.