Seattle (SEA) to Cancun (CUN) flights

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.
| Program | Economy | Taxes and fees |
|---|---|---|
| Alaska Atmos RewardsOn Alaska Airlines | 12,500 | $5.60β57.60 |
| Finnair PlusOn Alaska Airlines | 12,500 | $5.60β57.60 |
| Iberia ClubOn Alaska Airlines | 13,000 | $5.60β57.60 |
| Cathay Pacific Asia MilesOn Alaska Airlines | 15,000 | $29β90 |
| SAS EuroBonusOn Delta Air Lines | 15,000 | $56β164 |
| Qatar Airways Privilege ClubOn Alaska Airlines | 16,000 | $5.60β57.60 |
| American AAdvantageOn Alaska Airlines | 17,500 | $5.60β57.60 |
| British Airways ClubOn Alaska Airlines | 20,000 | $5.60β57.60 |
| Starlux (COSMILE)On Alaska Airlines | 20,000 | $38.60β90.60 |
| Virgin Atlantic Flying ClubOn Delta Air Lines | 22,000 | $5.60β57.60 |
| JAL Mileage BankOn Alaska Airlines | 23,000 | $5.60β57.60 |
| Qantas Frequent FlyerOn Alaska Airlines | 28,200 | $5.60β57.60 |
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 PricerAirlines flying nonstop from SEA to CUN
- Alaska Airlinesoneworld Β· bookable with 9 programsWho books it

- 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.
- 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
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.









