£172 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 07:00 and lands at 12:58
• Latest: departs at 07:25 and lands at 13:23.

The flight takes about 5h 58m.

A direct 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.

Return flights from Seattle to Cancún range from £400 to £609, with an average of £501 over the past 12 months. Anything below £400 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 16% above the £501 route average. Book 8 weeks before departure for the lowest fares.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £374 return via Los Angeles (LAX), compared with £511 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £23–£76 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% 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, return flight prices on this route showed a wide range, from about £386 to £2,136. 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 programme, while 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 £205, which is 19% below the typical average for this route.

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

• Hertz
• MEXRENTACAR
• 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 £462 return on average, while Sunday is the most expensive at £520, a difference of £58.

KAYAK's flexible dates feature shows options up to three 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 direct flights on this route include:

• Delta
• Alaska Airlines

Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time of 8h 46m, compared to 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 Nautilus Diving and Training Center, Playa Caracol, and Iberostar Cancun Peninsula Convention Centre. 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

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