Seattle (SEA) to Cancun (CUN) flights
2 airlines fly nonstop from Seattle (SEA) to Cancun (CUN): Alaska Airlines and Delta Air Lines. The two airports are 2,684 miles (4,320 km) apart. Alaska Airlines is in oneworld and Delta Air Lines is in SkyTeam. There are also 52 ways to fly it with one stop, through Houston, Houston and Dallas and more.
Airlines flying nonstop from SEA to CUN
- Alaska Airlinesoneworld · bookable with 9 programsWho books it
- Delta Air LinesSkyTeam · bookable with 8 programsWho books it
Book SEA to CUN with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Aeromexico RewardsBooks Delta Air Lines
- Air France-KLM Flying BlueBooks Delta Air Lines
- Alaska Atmos RewardsBooks Alaska Airlines
- American AAdvantageBooks Alaska Airlines
- British Airways ClubBooks Alaska Airlines
- Cathay Pacific Asia MilesBooks Alaska Airlines
- China Eastern Eastern MilesBooks Delta Air Lines
- Delta SkyMilesBooks Delta Air Lines
- Finnair PlusBooks Alaska Airlines
- Garuda Indonesia GarudaMilesBooks Delta Air Lines
- Iberia ClubBooks Alaska Airlines
- JAL Mileage BankBooks Alaska Airlines
- Korean Air SKYPASSBooks Delta Air Lines
- Qantas Frequent FlyerBooks Alaska Airlines
- Qatar Airways Privilege ClubBooks Alaska Airlines
- SAS EuroBonusBooks Delta Air Lines
- Virgin Atlantic Flying ClubBooks Delta Air Lines
SEA to CUN with one stop
52 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Houston (HOU)Southwest Airlines the whole way
- Via Houston (IAH)United Airlines the whole way
- Via Dallas (DFW)American Airlines the whole way
- Via Austin (AUS)Delta Air Lines and Southwest Airlines the whole way
- Via Denver (DEN)Frontier Airlines, United Airlines and 1 more the whole way+3
- Via Salt Lake City (SLC)Delta Air Lines the whole way
- Via Oklahoma City (OKC)Alaska Airlines, then American Airlines
- Via San Antonio (SAT)Alaska Airlines, then Southwest Airlines
- Via New Orleans (MSY)Alaska Airlines, then Southwest Airlines and Breeze Airways
- Via Portland (PDX)Alaska Airlines the whole way
- Via Kansas City (MCI)Southwest Airlines and Delta Air Lines the whole way
- Via Las Vegas (LAS)Southwest Airlines the whole way+2
- Via Phoenix (PHX)American Airlines and Southwest Airlines the whole way+1
- Via Victoria (YYJ)Alaska Airlines, then WestJet
- Via Kelowna (YLW)WestJet the whole way
SEA to CUN: common questions
Which airlines fly nonstop from SEA to CUN?
Alaska Airlines (oneworld) and Delta Air Lines (SkyTeam) fly nonstop from Seattle (SEA) to Cancun (CUN).
How far is Seattle from Cancun by plane?
Seattle (SEA) and Cancun (CUN) are 2,684 miles (4,320 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book SEA to CUN award flights?
17 programs can book at least one of the nonstop airlines: Aeromexico Rewards, Air France-KLM Flying Blue, Alaska Atmos Rewards, American AAdvantage, British Airways Club, Cathay Pacific Asia Miles, China Eastern Eastern Miles, Delta SkyMiles and 9 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does SEA to CUN cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for SEA to CUN with taxes and fees.
Where can I connect between Seattle and Cancun?
The most direct connections are through Houston (HOU), Houston (IAH), Dallas (DFW), Austin (AUS) and Denver (DEN). On 38 of them the same airline flies both flights, for example Southwest Airlines through Houston.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.