Dulles (IAD) to San Diego (SAN) flights
2 airlines fly nonstop from Dulles (IAD) to San Diego (SAN): Alaska Airlines and United Airlines. The two airports are 2,249 miles (3,620 km) apart. Alaska Airlines is in oneworld and United Airlines is in Star Alliance. There are also 47 ways to fly it with one stop, through Cincinnati, Saint Louis and Albuquerque and more.
Airlines flying nonstop from IAD to SAN
- Alaska Airlinesoneworld · bookable with 9 programsWho books it
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book IAD to SAN with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- Alaska Atmos RewardsBooks Alaska Airlines
- American AAdvantageBooks Alaska Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- British Airways ClubBooks Alaska Airlines
- Cathay Pacific Asia MilesBooks Alaska Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- Finnair PlusBooks Alaska Airlines
- Iberia ClubBooks Alaska Airlines
- JAL Mileage BankBooks Alaska Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Qantas Frequent FlyerBooks Alaska Airlines
- Qatar Airways Privilege ClubBooks Alaska Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
IAD to SAN with one stop
47 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Cincinnati (CVG)United Airlines, then Breeze Airways
- Via Saint Louis (STL)United Airlines, then Southwest Airlines
- Via Albuquerque (ABQ)United Airlines, then Southwest Airlines
- Via Indianapolis (IND)United Airlines, then Southwest Airlines
- Via Kansas City (MCI)United Airlines, then Southwest Airlines
- Via Phoenix (PHX)United Airlines, then American Airlines, Southwest Airlines and 2 more
+1
- Via Columbus (CMH)United Airlines, then Southwest Airlines
- Via Pittsburgh (PIT)United Airlines, then Southwest Airlines and Breeze Airways
- Via Nashville (BNA)United Airlines, then Southwest Airlines
- Via Denver (DEN)United Airlines the whole way+1
- Via Chicago (ORD)United Airlines the whole way
- Via Vail (EGE)United Airlines, then Alaska Airlines
- Via Las Vegas (LAS)Frontier Airlines the whole way
+1 - Via Detroit (DTW)Delta Air Lines the whole way
- Via Dallas (DFW)American Airlines and Frontier Airlines the whole way
IAD to SAN: common questions
Which airlines fly nonstop from IAD to SAN?
Alaska Airlines (oneworld) and United Airlines (Star Alliance) fly nonstop from Dulles (IAD) to San Diego (SAN).
How far is Dulles from San Diego by plane?
Dulles (IAD) and San Diego (SAN) are 2,249 miles (3,620 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book IAD to SAN award flights?
22 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, Alaska Atmos Rewards, American AAdvantage, ANA Mileage Club, Avianca LifeMiles, British Airways Club, Cathay Pacific Asia Miles and 14 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does IAD 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 IAD to SAN with taxes and fees.
Where can I connect between Dulles and San Diego?
The most direct connections are through Cincinnati (CVG), Saint Louis (STL), Albuquerque (ABQ), Indianapolis (IND) and Kansas City (MCI). On 19 of them the same airline flies both flights, for example United Airlines through Denver.
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.