$173 Find Cheap Flights from Seattle to Cancun - Compare and Save

These are the earliest and latest flight times available from Seattle to Cancún:

• Earliest: departs at 7:00 am and lands at 12:58 pm
• Latest: departs at 7:25 am and lands at 1:23 pm.

The flight takes about 5h 58m.

Four cabin classes are available on flights from Seattle to Cancún:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

A nonstop flight from Seattle to Cancún takes 5h 58m, covering 2,683 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Round-trip flights from Seattle to Cancún range from $529 to $806, with an average of $663 over the past 12 months. Anything below $529 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 16% above the $663 route average. Book 8 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $495 round-trip via Los Angeles (LAX), compared to $676 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $30–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Airbus A321neo family is used most often on this route, operated mainly by Delta and Aeromexico. Other aircraft seen on the route include Airbus A321-100/200 variants.

Morning is the busiest departure period on Seattle to Cancún flights, with 100% of flights leaving in that window. Afternoon departures account for 0%, evening flights for 0%, and night flights for 0%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $435 to $2,691. That means the highest observed fare was about 6x higher than the lowest one.

Three airlines offer in-flight Wi-Fi on Seattle to Cancún flights:

• Delta
• Alaska Airlines
• JetBlue

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from Seattle to Cancún are currently lower than usual. Average one-way flight prices are about $215, which is 36% below the typical average for this route.

Cancun Airport (CUN) hosts 5 major car rental companies, with daily rates starting from around $1 for economy cars. Top options include:

• MEXRENTACAR
• Hertz
• America Car Rental
• Budget
• Europcar

Flights from Seattle to Cancún usually depart from Seattle/Tacoma Intl (SEA) and arrive at Cancun (CUN).

One-stop flights from Seattle to Cancún most commonly connect through:

• Guadalajara Miguel Hidal (GDL) - 44% of one-stop connections
• Dallas/Fort Worth (DFW) - 24% of one-stop connections
• Denver Intl (DEN) - 11% of one-stop connections
• Vancouver Intl (YVR) - 7% of one-stop connections

Yes. Flexible dates can save you up to 12% on flights from Seattle to Cancún. Wednesday is the cheapest departure day at $611 round-trip on average, while Sunday is the most expensive at $688, a difference of $77.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

2 airlines operate flights between Seattle and Cancún. The airlines offering nonstop flights on this route include:

• Delta
• Alaska Airlines

Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 8h 46m, compared with 8h 56m via Houston George Bush Intcntl (IAH) and 9h 07m via Salt Lake City (SLC).

Cancún is 2 hours ahead of Seattle (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Cancún are Playa Caracol, Playa Delfines and Playa Gaviota Azul. These are among the most viewed places in Cancún on KAYAK.

Among airlines operating Seattle to Cancún flights:

• Delta: offers extra legroom; offers free seat selection
• Alaska Airlines: offers extra legroom; offers free seat selection
• Aeromexico: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Delta: a cabin bag and a checked bag in Economy Class
• Alaska Airlines: a cabin bag and a checked bag in Economy Class
• Aeromexico: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

There are various nursing rooms throughout the Seattle-Tacoma International Airport. Mothers can enjoy some privacy and quiet time before boarding their flight to Cancun. You’ll find a nursing room in each concourse, by Gate A10, by A1 before entering Concourse B, C10, D3 and D11, S9, and across from N19. There are also companion care restrooms around the airport.

You will need to exchange some USD for Mexican Pesos (MXN) to have cash for your trip to Cancun. This is possible to do upon your arrival at Cancun International Airport (CUN). There are currency exchange desks in the arrival halls of the terminals. For instance, there is a currency exchange location on Level 0 of Terminal 2, by Starbucks.

For those traveling out of Seattle-Tacoma International Airport (SEA) with pets or service animals, visit one of the airport’s pet relief areas close to your departure gate. Here your pet can stretch its legs and relieve itself before the long flight to Cancun. You’ll find the relief areas in front of security Checkpoints 1 and 3 on the departure floor, and by the blue train station at Concourse S.

If you don’t wish to get a taxi, it’s possible to book an airport bus that takes you to main areas like Downtown Cancun, Playa del Carmen, or Tulum. The Downtown Cancun bus departs from Terminals 2, 3, and 4. You can expect the ride to be about 35 minutes long and for it to cost around 133.70 MXN (6.80 USD). Other destinations such as Playa del Carmen may cost more, closer to 277.60 MXN (13.50 USD).