United States to Mexico Β· 2,684 miles (4,320 km)

Seattle (SEA) to Cancun (CUN) flights

Alaska Atmos Rewards logo
12,500 milesCheapest economy award, one way, with Alaska Atmos Rewards

An economy award from Seattle (SEA) to Cancun (CUN) starts at 12,500 miles one way with Alaska Atmos Rewards on Alaska Airlines, plus taxes and fees from $5.60. Finnair Plus charges the same. 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.

How many miles SEA to CUN costs

Economy, one way, on the nonstop flights, from the Award Flight Pricer's award charts. Ranges run off-peak to peak; "from" is the floor of a dynamic price.

ProgramEconomyTaxes and fees
Alaska Atmos RewardsOn Alaska Airlines12,500$5.60–57.60
Finnair PlusOn Alaska Airlines12,500$5.60–57.60
Iberia ClubOn Alaska Airlines13,000$5.60–57.60
Cathay Pacific Asia MilesOn Alaska Airlines15,000$29–90
SAS EuroBonusOn Delta Air Lines15,000$56–164
Qatar Airways Privilege ClubOn Alaska Airlines16,000$5.60–57.60
American AAdvantageOn Alaska Airlines17,500$5.60–57.60
British Airways ClubOn Alaska Airlines20,000$5.60–57.60
Starlux (COSMILE)On Alaska Airlines20,000$38.60–90.60
Virgin Atlantic Flying ClubOn Delta Air Lines22,000$5.60–57.60
JAL Mileage BankOn Alaska Airlines23,000$5.60–57.60
Qantas Frequent FlyerOn Alaska Airlines28,200$5.60–57.60

Business and first class prices are in the Award Flight Pricer. Chart prices need award space on your date, so search it before you transfer points.

Compare every program in the Award Flight Pricer

Airlines flying nonstop from SEA to CUN

  • Alaska Airlines logo
    Alaska Airlinesoneworld Β· bookable with 9 programsWho books it
  • Delta Air Lines logo
    Delta Air LinesSkyTeam Β· 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.

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
    Southwest Airlines logo
    Southwest Airlines logo
  • Via Houston (IAH)United Airlines the whole way
    Alaska Airlines logo
    United Airlines logo
    United Airlines logo
    Frontier Airlines logo
  • Via Dallas (DFW)American Airlines the whole way
    American Airlines logo
    Alaska Airlines logo
    Delta Air Lines logo
    American Airlines logo
    Frontier Airlines logo
  • Via Austin (AUS)Delta Air Lines and Southwest Airlines the whole way
    Alaska Airlines logo
    Delta Air Lines logo
    Southwest Airlines logo
    Southwest Airlines logo
    American Airlines logo
    Delta Air Lines logo
  • Via Denver (DEN)Frontier Airlines, United Airlines and 1 more the whole way
    Alaska Airlines logo
    Delta Air Lines logo
    Frontier Airlines logo
    +3
    Frontier Airlines logo
    United Airlines logo
    Southwest Airlines logo
  • Via Salt Lake City (SLC)Delta Air Lines the whole way
    Alaska Airlines logo
    Delta Air Lines logo
    Delta Air Lines logo
  • Via Oklahoma City (OKC)Alaska Airlines, then American Airlines
    Alaska Airlines logo
    American Airlines logo
  • Via San Antonio (SAT)Alaska Airlines, then Southwest Airlines
    Alaska Airlines logo
    Southwest Airlines logo
  • Via New Orleans (MSY)Alaska Airlines, then Southwest Airlines and Breeze Airways
    Alaska Airlines logo
    Southwest Airlines logo
    Breeze Airways logo
  • Via Portland (PDX)Alaska Airlines the whole way
    Alaska Airlines logo
    Delta Air Lines logo
    Alaska Airlines logo
  • Via Kansas City (MCI)Southwest Airlines and Delta Air Lines the whole way
    Alaska Airlines logo
    Southwest Airlines logo
    Delta Air Lines logo
    American Airlines logo
    Delta Air Lines logo
    Southwest Airlines logo
  • Via Las Vegas (LAS)Southwest Airlines the whole way
    Alaska Airlines logo
    Delta Air Lines logo
    Southwest Airlines logo
    +2
    Southwest Airlines logo
  • Via Phoenix (PHX)American Airlines and Southwest Airlines the whole way
    American Airlines logo
    Alaska Airlines logo
    Delta Air Lines logo
    +1
    American Airlines logo
    Southwest Airlines logo
  • Via Victoria (YYJ)Alaska Airlines, then WestJet
    Alaska Airlines logo
    WestJet logo
  • Via Kelowna (YLW)WestJet the whole way
    Alaska Airlines logo
    WestJet logo
    WestJet logo
See all 52 in Routes

SEA to CUN: common questions

How many miles does SEA to CUN cost?

In economy it starts at 12,500 miles one way with Alaska Atmos Rewards on Alaska Airlines, plus taxes and fees from $5.60. Next cheapest: Finnair Plus (12,500), Iberia Club (13,000) and Cathay Pacific Asia Miles (15,000). These are award chart prices from the Award Flight Pricer. Programs that price dynamically can cost more on busy dates, so check yours before you transfer points. Business and first class prices are in the pricer too.

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.

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.