Wayfli › Seattle (SEA) › To Cancun (CUN)

Seattle (SEA) to Cancun (CUN) flights

There are direct flights from Seattle Tacoma International Airport to Cancun Cancún International Airport, sold by 2 airlines (including codeshares): Aeromexico and Alaska Airlines. The distance is 4,321 km, about 5h 45m in the air. There are also 25 one-stop options, via airports such as Chicago, Dallas-Fort Worth and Atlanta.

Live fares for SEA → CUNSee all routes on the map
4,321 kmdistance
~5h 45mdirect flight time (estimate)
2direct airlines
25one-stop options

Direct flights from Seattle to Cancun

RouteAirlines (incl. codeshares)DistanceTime (est.)
SEA → CUNAeromexico, Alaska Airlines4,321 km~5h 45m

Best one-stop connections

Through the biggest hubs first. Times include about 100 minutes to change planes.

ViaAirlinesDistanceTime (est.)
ORD ChicagoAmerican Airlines and Alaska Airlines then American Airlines and United Airlines5,092 km~8h 55m
DFW Dallas-Fort WorthAmerican Airlines and Alaska Airlines then American Airlines and Frontier Airlines4,325 km~7h 55m
ATL AtlantaAir France and Aeromexico then Air France and Aeromexico4,927 km~8h 40m
IAH HoustonAlaska Airlines and Copa Airlines then Air China and United Airlines4,321 km~7h 55m
DEN DenverAmerican Airlines and Alaska Airlines then Frontier Airlines and United Airlines4,334 km~7h 55m
LAX Los AngelesAmerican Airlines and Alaska Airlines then American Airlines and Aeromexico4,943 km~8h 40m
MIA MiamiAmerican Airlines and Alaska Airlines then American Airlines and LATAM Airlines Group5,234 km~9h 5m
CLT CharlotteAmerican Airlines then American Airlines5,340 km~9h 10m
LAS Las VegasAlaska Airlines and Southwest Airlines then Southwest Airlines4,605 km~8h 15m
SFO San FranciscoAmerican Airlines and Alaska Airlines then United Airlines4,964 km~8h 45m
MCO OrlandoAmerican Airlines and Alaska Airlines then Aeromexico and jetBlue5,100 km~8h 55m
MEX Mexico CityAeromexico then Air Montenegro and Aeromexico5,041 km~8h 50m

More from Seattle and Cancun

Routes come from current airline fares, updated weekly (last update 11 November 2026), plus older schedule data for airports with few recent fares. “Direct” can include a few same-plane flights with a stop. Flight times are estimates from distance. Always check with the airline before booking.