Seattle (SEA) to San Diego (SAN) flights
3 airlines fly nonstop from Seattle (SEA) to San Diego (SAN): Alaska Airlines, Delta Air Lines and Southwest Airlines. The two airports are 1,051 miles (1,692 km) apart. Alaska Airlines is in oneworld and Delta Air Lines is in SkyTeam. There are also 33 ways to fly it with one stop, through Redmond, Reno and Portland and more.
Airlines flying nonstop from SEA to SAN
- Alaska Airlinesoneworld · bookable with 9 programsWho books it
- Delta Air LinesSkyTeam · bookable with 8 programsWho books it
- Southwest AirlinesNot in an allianceWho books it
Book SEA to SAN 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 SAN with one stop
33 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Redmond (RDM)Alaska Airlines the whole way
- Via Reno (RNO)Alaska Airlines the whole way
- Via Portland (PDX)Alaska Airlines the whole way
- Via Fresno (FAT)Alaska Airlines the whole way
- Via Los Angeles (LAX)Delta Air Lines and United Airlines the whole way
+2
- Via Eugene (EUG)Alaska Airlines the whole way
- Via Sacramento (SMF)Alaska Airlines and Southwest Airlines the whole way
- Via Medford (MFR)Alaska Airlines the whole way
- Via Santa Barbara (SBA)Alaska Airlines the whole way
- Via San Luis Obispo (SBP)Alaska Airlines the whole way
- Via San Jose (SJC)Alaska Airlines and Southwest Airlines the whole way
- Via Oakland (OAK)Alaska Airlines and Southwest Airlines the whole way
- Via San Francisco (SFO)Alaska Airlines and United Airlines the whole way+1
- Via Las Vegas (LAS)Alaska Airlines, Delta Air Lines and 2 more the whole way+2+1
- Via Monterey (MRY)Alaska Airlines the whole way
SEA to SAN: common questions
Which airlines fly nonstop from SEA to SAN?
Alaska Airlines (oneworld), Delta Air Lines (SkyTeam) and Southwest Airlines fly nonstop from Seattle (SEA) to San Diego (SAN).
How far is Seattle from San Diego by plane?
Seattle (SEA) and San Diego (SAN) are 1,051 miles (1,692 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 SAN 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 SAN 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 SAN with taxes and fees.
Where can I connect between Seattle and San Diego?
The most direct connections are through Redmond (RDM), Reno (RNO), Portland (PDX), Fresno (FAT) and Los Angeles (LAX). On 30 of them the same airline flies both flights, for example Alaska Airlines through Redmond.
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.