C$ 338 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 12:59 pm
• Latest: departs at 8:01 am and lands at 2:00 pm.

The flight takes about 5h 59m.

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

• Economy Class
• First Class

A direct flight from Seattle to Cancún takes 5h 59m, covering 6,949 km.

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 C$ 740 to C$ 1,127, with an average of C$ 928 over the past 12 months. Anything below C$ 740 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 16% above the C$ 928 route average. Book 8 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 692 round-trip via Los Angeles (LAX), compared to C$ 946 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 42–C$ 140 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 A318/A319/A320/A321 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, round-trip prices on this route showed a wide range, from about C$ 706 to C$ 3,792. That means the highest observed fare was about 5x 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 C$ 364, which is 22% below the typical average for this route.

Cancun Airport (CUN) hosts 5 major car rental companies, with daily rates averaging C$ 22 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 C$ 855 round-trip on average, while Sunday is the most expensive at C$ 962, a difference of C$ 108.

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 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 Mercado 28, Playa Tortugas, and Playa Delfines. 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 carry-on bag and a checked bag in Economy Class
• Alaska Airlines: a carry-on bag and a checked bag in Economy Class
• Aeromexico: a carry-on 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.