Skyscanner home

149 € Cheap Flights from Washington D.C. to San Diego International

Compare Washington D.C. to San Diego International flight deals

Find the cheapest month or even day of the year to fly to San Diego International

Book the best San Diego International fare with no extra fees

Flight deals from Washington D.C. to San Diego International

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to San Diego International Airport? If you want to travel next month, return fares start from 149 €. Find the lowest prices on one-way and return tickets right here.
San Diego.149 € per passenger.Departing Thu, 27 Aug, returning Mon, 31 Aug.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Thu, 27 Aug, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Mon, 31 Aug, arriving in Washington Dulles.Price includes taxes and charges.From 149 €, select.
San Diego.152 € per passenger.Departing Mon, 31 Aug, returning Thu, 3 Sep.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Mon, 31 Aug, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Thu, 3 Sep, arriving in Washington Dulles.Price includes taxes and charges.From 152 €, select.
San Diego.167 € per passenger.Departing Wed, 7 Oct, returning Tue, 13 Oct.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Baltimore Washington International on Wed, 7 Oct, arriving in San Diego International.Inbound indirect flight with Alaska Airlines, departs from San Diego International on Tue, 13 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From 167 €, select.
San Diego.168 € per passenger.Departing Tue, 1 Sep, returning Tue, 15 Sep.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Baltimore Washington International on Tue, 1 Sep, arriving in San Diego International.Inbound indirect flight with Alaska Airlines, departs from San Diego International on Tue, 15 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From 168 €, select.
San Diego.179 € per passenger.Departing Tue, 29 Sep, returning Tue, 6 Oct.Return flight with Alaska Airlines and Frontier Airlines.Outbound indirect flight with Alaska Airlines, departs from Baltimore Washington International on Tue, 29 Sep, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Tue, 6 Oct, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 179 €, select.
San Diego.182 € per passenger.Departing Sat, 14 Nov, returning Tue, 17 Nov.Return flight with Alaska Airlines and Frontier Airlines.Outbound indirect flight with Alaska Airlines, departs from Baltimore Washington International on Sat, 14 Nov, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Tue, 17 Nov, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 182 €, select.
San Diego.205 € per passenger.Departing Wed, 28 Oct, returning Tue, 3 Nov.Return flight with Alaska Airlines and Frontier Airlines.Outbound indirect flight with Alaska Airlines, departs from Baltimore Washington International on Wed, 28 Oct, arriving in San Diego International.Inbound indirect flight with Frontier Airlines, departs from San Diego International on Tue, 3 Nov, arriving in Washington Ronald Reagan.Price includes taxes and charges.From 205 €, select.
San Diego.206 € per passenger.Departing Sat, 3 Oct, returning Tue, 6 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Sat, 3 Oct, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Tue, 6 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From 206 €, select.
San Diego.206 € per passenger.Departing Tue, 29 Sep, returning Tue, 6 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Tue, 29 Sep, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Tue, 6 Oct, arriving in Baltimore Washington International.Price includes taxes and charges.From 206 €, select.
San Diego.206 € per passenger.Departing Wed, 2 Sep, returning Wed, 9 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Wed, 2 Sep, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Wed, 9 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From 206 €, select.
San Diego.206 € per passenger.Departing Sat, 29 Aug, returning Sat, 5 Sep.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Sat, 29 Aug, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Sat, 5 Sep, arriving in Baltimore Washington International.Price includes taxes and charges.From 206 €, select.
San Diego.206 € per passenger.Departing Wed, 28 Oct, returning Tue, 3 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Wed, 28 Oct, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Tue, 3 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From 206 €, select.
San Diego.206 € per passenger.Departing Sat, 14 Nov, returning Tue, 17 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Sat, 14 Nov, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Tue, 17 Nov, arriving in Baltimore Washington International.Price includes taxes and charges.From 206 €, select.
San Diego.232 € per passenger.Departing Wed, 26 Aug, returning Mon, 31 Aug.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Wed, 26 Aug, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Mon, 31 Aug, arriving in Baltimore Washington International.Price includes taxes and charges.From 232 €, select.
San Diego.245 € per passenger.Departing Wed, 2 Dec, returning Sat, 5 Dec.Return flight with Frontier Airlines and Alaska Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Wed, 2 Dec, arriving in San Diego International.Inbound indirect flight with Alaska Airlines, departs from San Diego International on Sat, 5 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From 245 €, select.
San Diego.278 € per passenger.Departing Tue, 1 Dec, returning Sat, 5 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Baltimore Washington International on Tue, 1 Dec, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Sat, 5 Dec, arriving in Baltimore Washington International.Price includes taxes and charges.From 278 €, select.

Find the cheapest month to fly from Washington D.C. to San Diego International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington D.C. to San Diego International flights are currently cheapest in August.
Jul
from 862 €
Aug
from 149 €
Sep
from 168 €
Oct
from 167 €
Nov
from 182 €
Dec
from 245 €
Jan
from 339 €
Feb
from 328 €
Mar
from 348 €
Apr
from 349 €
May
from 349 €
Jun
from 944 €

Direct flights from Washington D.C. to San Diego International

Washington D.C. to San Diego International: Alternative routes

Compare routes from Washington D.C. to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier than San Diego International.

San Diego International

4km from central San Diego
ClosestCheapest
from 149 €
Search flights

McClellan-Palomar

48km from central San Diego
from 332 €
Search flights

Washington D.C. to San Diego: Flight information

The things to know before you go.
Cheapest flight found149 €
Cheapest month to flyAugust
Average flight time5 hrs, 38 mins
Most popular airlineSouthwest Airlines
Average flights per week218

Finding cheap flights from Washington D.C. to San Diego International: Frequently asked questions

The best price we found for a return flight from Washington D.C. to San Diego International is 149 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
5 hours and 37 minutes is the average flight time from Washington D.C. to San Diego International.
Southwest Airlines, Alaska Airlines and United fly direct from Washington D.C. to San Diego International.
As of July 2026, there are 218 flights per week flying from Washington D.C. to San Diego International.
The cheapest month to fly from Washington D.C. to San Diego International is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to San Diego International Airport on Thursday, 27 August 2026.
Yes – the average flight time is 5 hours and 37 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Washington DC to San Diego International Airport (SAN): What you need to know

  • The first chapter of your trip begins at one of Washington DC's main airports, Ronald Reagan Washington National Airport (DCA) or Washington Dulles International Airport (IAD). Check out your options for booking a flight from Washington DC to San Diego International Airport (SAN) leaving from either of these bases.

  • 5 hours 35 minutes is the average duration of a direct Washington DC to San Diego International Airport flight.

  • San Diego International Airport is located in San Diego. The city runs on the UTC-8 timezone and is three hours behind Washington DC.

  • The most popular route is from Ronald Reagan Washington National Airport (DCA) to San Diego International Airport (SAN). You can choose from 6 direct services each week. Alaska Airlines operates a 8:30am departure between DCA and SAN.

  • Give yourself plenty of time to get on your flight from Washington DC to SAN. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Peak months like July or holiday periods such as spring break and Thanksgiving will mean bigger queues at check-in and security. Be on the safe side and get to the terminal even earlier. Arriving two hours before domestic flights and up four hours ahead of international flights is wise.

Airports in Washington DC

Ronald Reagan Washington National Airport (DCA)

  • Ronald Reagan Washington National Airport (DCA) makes it easy to travel directly to your destination. Nonstop flights from Washington DC to San Diego International Airport (SAN) depart from this terminal.

  • When leaving from DCA, you can take a direct flight from Washington DC to San Diego International Airport with Alaska Airlines.

  • Most passengers prefer to fly with Alaska Airlines from DCA to SAN.

  • The carrier with the most reliable on-time arrival rate on this route is Alaska Airlines.

  • Located around 6 kilometres from the centre of Washington DC, DCA can be reached in about 10 minutes by car (depending on traffic). The journey on public transport will take roughly 25 minutes.

  • Want an easy start to your trip? Stay near Ronald Reagan Washington National Airport. Whether you're catching an early flight from Washington DC to San Diego International Airport or prefer not to rush, these hotels are the ideal choice:

  • Of all flights leaving Ronald Reagan Washington National Airport, 71% touch down on time at their destination.

  • DCA is located at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • Looking to fly out of Washington Dulles International Airport (IAD)? Direct Washington DC to San Diego International Airport (SAN) plane tickets are available from this popular hub.

  • United Airlines has direct flights from Washington DC to SAN leaving from IAD. Book your favourite window (or aisle) seat and reach your destination without any detours.

  • United takes the lead in bookings on the IAD to SAN route.

  • The top on-time carrier is United. Its Washington Dulles International Airport to San Diego International Airport flights arrive without delay 78.23% of the time.

  • Using public transport, you can travel from central Washington DC to IAD in about 1 hour 10 minutes. The airport is roughly 40 kilometres away, and making the trip by car takes approximately 45 minutes.

  • Taking off bright and early? You might like to check in to one of these hotels near Washington Dulles International Airport the day before your Washington DC to SAN flight:

  • 77% of all departures from Washington Dulles International Airport make it to their destination as expected.

  • You'll find IAD at 1 Saarinen Circle.

Baltimore Washington International Airport (BWI)

  • Get there with one smooth ride from Baltimore Washington International Airport (BWI). Direct flights from Washington DC to San Diego International Airport are available from here.

  • Southwest Airlines is one popular carrier that offers direct Washington DC to SAN plane tickets from BWI.

  • The airline with the highest booking numbers between BWI and SAN is Southwest Airlines.

  • With 76.13% of services landing as planned, Southwest Airlines is the leading performer for punctuality on this route.

  • From central Washington DC, BWI is around 48 kilometres away. It'll take you roughly 40 minutes to reach the airport by car and 50 minutes or so if you use public transport.

  • Make catching an early Washington DC to San Diego International Airport flight the easiest part of your journey. Book a room at one of these accommodation options near Baltimore Washington International Airport and get to your boarding gate with time to spare:

  • Airports have an on-time performance rating that measures how often flights land without delays. At BWI, that figure is 77%.

About San Diego International Airport (SAN)

Getting from San Diego International Airport (SAN) to central San Diego

  • Central San Diego is around 5 kilometres from San Diego International Airport and takes about 15 minutes to reach by car. See what your options are for making the trip into the city, whether that's with a taxi, car hire or ride-share.

  • If you're using public transport, expect a journey of roughly 25 minutes.

How to find the cheapest flights from Washington DC to San Diego International Airport (SAN)

  • The lowest price we've found for a one-way ticket from Washington DC to San Diego International Airport is 64 €. For a return flight on this route, the best price is 149 €. Depending on when and how early you book, these fares may change.

  • To snap up cheap flights from Washington DC to SAN, book your plane ticket one month ahead of your planned departure.

  • The best month for finding cheap Washington DC to San Diego International Airport tickets is June. Use the 'Whole month' tool to compare prices, then choose the dates offering the lowest fares.

  • You don't need to check every day to find out if prices have dropped when you set up a Price Alert. We'll let you know as soon as a new deal shows up on plane tickets from Washington DC to SAN.

  • Find an affordable flight from Washington DC to San Diego International Airport by using filters. Choose your ideal departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Washington DC to San Diego International Airport (SAN)

  • December is the quietest month for flights from Washington DC to San Diego International Airport (SAN), while July is the busiest. Pick the best time to visit San Diego based on whether you want a bustling atmosphere or a more laid-back vibe.

  • The warmest month in San Diego is August, with temperatures ranging between 16ºC (61ºF) and 27ºC (81ºF). Lock in your Washington DC to SAN plane ticket then if this is the type of weather you enjoy.

  • Look for cheap tickets from Washington DC to San Diego International Airport in February if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 8ºC (46ºF) and 22ºC (72ºF).

More about San Diego

  • Start your San Diego trip right by choosing the ideal place to stay. As soon as you've booked your flight from Washington DC to San Diego International Airport, check out our selection of accommodation options including:

  • All great adventures should include a little sightseeing. San Diego Zoo, San Diego Balboa Park and USS Midway Museum are must-visits when exploring San Diego.

Explore more of the United States

  • San Diego will leave a lasting impression, but there are so many other parts of the United States just waiting to be explored. About 177 kilometres northwest of San Diego, a visit to Los Angeles will keep you on the move. Start with attractions like Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.

  • Around 145 kilometres northwest of San Diego, Long Beach is another essential stop in the United States. Start your sightseeing at The Queen Mary, Museum of Latin American Art (MOLAA) and Long Beach Lighthouse.

Plan the rest of your trip from Washington D.C. to San Diego

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.