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Cheap Flights from San Diego (SAN) to Washington D.C. (WASA)

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

Find the cheapest month or even day of the year to fly to Washington D.C.

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

Looking for a cheap last-minute deal or the best return flight from San Diego International to Washington D.C.? Find the lowest prices on one-way and return tickets right here.
Washington D.C..$203 per passenger.Departing Wed, 15 Apr, returning Sat, 18 Apr.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Wed, 15 Apr, arriving in Washington Ronald Reagan.Inbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Sat, 18 Apr, arriving in San Diego International.Price includes taxes and charges.From $203, select.
Washington D.C..$203 per passenger.Departing Sat, 25 Apr, returning Sat, 2 May.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Sat, 25 Apr, arriving in Washington Ronald Reagan.Inbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Sat, 2 May, arriving in San Diego International.Price includes taxes and charges.From $203, select.
Washington D.C..$277 per passenger.Departing Sat, 25 Apr, returning Sat, 2 May.Return flight with United.Outbound direct flight with United departs from San Diego International on Sat, 25 Apr, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Sat, 2 May, arriving in San Diego International.Price includes taxes and charges.From $277, select.
Washington D.C..$277 per passenger.Departing Sat, 2 May, returning Wed, 6 May.Return flight with United.Outbound direct flight with United departs from San Diego International on Sat, 2 May, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Wed, 6 May, arriving in San Diego International.Price includes taxes and charges.From $277, select.
Washington D.C..$277 per passenger.Departing Wed, 8 Apr, returning Tue, 14 Apr.Return flight with United.Outbound direct flight with United departs from San Diego International on Wed, 8 Apr, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 14 Apr, arriving in San Diego International.Price includes taxes and charges.From $277, select.
Washington D.C..$305 per passenger.Departing Wed, 25 Mar, returning Tue, 21 Apr.Return flight with United.Outbound direct flight with United departs from San Diego International on Wed, 25 Mar, arriving in Washington Dulles.Inbound direct flight with United departs from Washington Dulles on Tue, 21 Apr, arriving in San Diego International.Price includes taxes and charges.From $305, select.
Washington D.C..$312 per passenger.Departing Tue, 24 Mar, returning Wed, 25 Mar.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from San Diego International on Tue, 24 Mar, arriving in Washington Ronald Reagan.Inbound indirect flight with Southwest Airlines, departs from Washington Ronald Reagan on Wed, 25 Mar, arriving in San Diego International.Price includes taxes and charges.From $312, select.
Washington D.C..$333 per passenger.Departing Tue, 24 Mar, returning Wed, 25 Mar.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from San Diego International on Tue, 24 Mar, arriving in Baltimore Washington International.Inbound direct flight with Southwest Airlines departs from Baltimore Washington International on Wed, 25 Mar, arriving in San Diego International.Price includes taxes and charges.From $333, select.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Diego International to Washington D.C. flights are currently cheapest in April.
Feb
Find prices
Mar
from $312
Apr
from $203
May
from $277
Jun
from $361
Jul
from $425
Aug
from $473
Sep
from $361
Oct
from $417
Nov
from $446
Dec
from $446
Jan
Find prices

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

Alternative San Diego International to Washington D.C. routes

Looking for the cheapest, fastest or easiest route from San Diego International to Washington D.C.? You could fly into the following airports instead.

Washington Ronald Reagan

5km from central Washington D.C.
ClosestCheapest
from $203
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Camp Springs Andrews AFB

17km from central Washington D.C.
Search flights

Washington Dulles

37km from central Washington D.C.
from $277
Search flights

Baltimore Washington International

44km from central Washington D.C.
from $305
Search flights

Manassas

47km from central Washington D.C.
Search flights

San Diego to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight found$203
Cheapest month to flyApril
Average flight time5 hrs, 5 mins
Most popular airlineSouthwest Airlines
Average flights per week108

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

There are 5 airports in Washington D.C.: Washington Ronald Reagan, Camp Springs Andrews AFB, Washington Dulles, Baltimore Washington International, and Manassas.
The best price we found for a return flight from San Diego International to Washington D.C. is $203. 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 5 minutes is the average flight time from San Diego International to Washington D.C..
Southwest Airlines, United and Alaska Airlines fly direct from San Diego International to Washington D.C..
As of February 2026, there are 108 flights per week flying from San Diego International to Washington D.C..
The cheapest month to fly from San Diego International to Washington D.C. is usually April.
If you're flying from San Diego International Airport, the cheapest airport near Washington D.C. is Washington Ronald Reagan – which is 5.5 km away from the centre of Washington D.C.. We've found flights into this airport from $203.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Diego International Airport to Washington D.C. on Wednesday, 15 April 2026.
Yes – the average flight time is 5 hours and 5 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 Washington D.C. 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 Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
In February, the average temperature is usually around 1°C. July is typically the warmest month in Washington D.C., when it usually averages around 31°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -4°C. The rainiest month is September.
Currently, Frontier Airlines and United offer the cheapest flight tickets to Washington D.C..

Flying from San Diego International Airport (SAN) to Washington DC: what you need to know

  • Expect to be travelling for 5 hours 30 minutes. On average, that's the duration of a direct flight from San Diego International Airport to Washington DC.

  • San Diego International Airport is located in San Diego. Following the UTC-4 timezone, Washington DC is three hours ahead of San Diego.

  • San Diego International Airport (SAN) to Washington Dulles International Airport (IAD) is the most traveled route, with 28 weekly flights to choose from. If you have things to do before heading off, the last flight from SAN to IAD is with United Airlines at 22:00. Choose the first departure operated by United Airlines at 07:55 if you want to get on your way earlier.

  • For hassle-free travel, arrive at the airport two hours ahead of international flights and one hour before domestic departures. That way, you won't have to rush to catch your SAN to Washington DC flight.

  • Heading away during a peak period like a bank holiday? Expect longer queues at security and check-in. Play it safe and arrive up to four hours before international flights and two hours ahead of domestic departures.

  • Begin your trip at SAN and go straight to Washington DC without any stops. When booking a direct San Diego International Airport to Washington DC ticket, these are your arrival options:

    • Ronald Reagan National Airport (DCA)

    • Washington Dulles International Airport (IAD)

    • Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • Popular carriers that operate direct flights from San Diego International Airport to Washington DC include:

  • Located around 3 kilometres from central San Diego, SAN can be reached in about 10 minutes by car, depending on traffic. The journey on public transport will take roughly 20 minutes.

  • Looking for a hotel near SAN? If you've booked an early flight from San Diego International Airport to Washington DC, these stays will put you moments from your departure lounge:

  • 71.38% of flights that depart San Diego International Airport reach their destination on schedule.

  • SAN is located at N Harbour Dr.

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

  • The best price we've found for a one-way San Diego International Airport to Washington DC flight is $101. The cheapest price for a return flight is $203. Remember fares may change due to demand at the time of booking.

  • To snag cheap flights from SAN to Washington DC, reserve your journey one month before your departure.

  • May is the best month for nabbing an incredible deal on San Diego International Airport to Washington DC tickets. If you need to travel during a different time of year, the 'Whole month' tool will give you the lowest prices across every month.

  • Snapping up a cheap flight from SAN to Washington DC couldn't be easier with Price Alerts. All you need to do is create one of these automatic notifications and we'll get in touch as soon as a deal gets even better.

  • Find an affordable flight from San Diego International Airport to Washington DC with the help of our filters. Choose your ideal duration, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • Ronald Reagan National Airport (DCA) is around 8 kilometres from the centre of Washington DC. If you're grabbing a cab or a ride-share, the drive takes about 15 minutes.

  • If you're travelling on public transport, expect a journey time of about 45 minutes.

  • If you're coming in on a late flight from San Diego International Airport to Washington DC, nothing beats the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and sleeping not long after at one of these hotels near DCA:

  • Go where the road takes you with a Ronald Reagan National Airport rental car. Pick up your wheels from Thrifty, Sixt or Dollar and find adventure across Washington DC and beyond.

  • Lock in the best possible rate by reserving your vehicle from Ronald Reagan National Airport around four weeks in advance of your flight from SAN to Washington DC.

  • DCA is located at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • Central Washington DC is located around 56 kilometres from Washington Dulles International Airport (IAD). Once your flight from San Diego International Airport to Washington DC has landed and you've navigated your way to arrivals, expect a drive of about 50 minutes.

  • If you travel by public transport, you'll get to the city centre in 1 hour 10 minutes or so.

  • Following your SAN to Washington DC flight, kick back at a hotel near IAD. These are some comfortable options that'll help you get into relaxation mode:

  • The quickest way to get to where you're going is with a Washington Dulles International Airport rental car. Pick up a set of wheels from Dollar, Thrifty or Sixt and hit the road in a heartbeat.

  • Snap up the best price by reserving your ride from IAD one week ahead of time. You can also expect to have a greater range of vehicles.

  • Washington Dulles International Airport is located at 1 Saarinen Circle.

Baltimore/Wash International Thurgood Marshall Airport (BWI)

  • Baltimore/Wash International Thurgood Marshall Airport (BWI) is around 48 kilometres from central Washington DC. It takes about 50 minutes to get to the city centre by cab or ride-share once you've stepped off your flight from San Diego International Airport to Washington DC.

  • Public transport can take you there in roughly 1 hour 30 minutes.

  • Check in to a hotel near BWI and get from baggage claim to your bed in a snap. Whether you have a late SAN to Washington DC flight or just want to simplify your travel plans, these stays offer a quick route to a good night's sleep:

  • Be in control of the next part of your trip by picking up a Baltimore/Wash International Thurgood Marshall Airport rental car. Dollar, Thrifty and Budget make getting on the road effortless.

  • If you're looking for a vehicle with specific features, book your ride from BWI about two weeks before your flight from San Diego International Airport to Washington DC. This improves your chances of getting the car you want, along with a better deal.

Best time to go to Washington DC

  • Carefully consider your trip dates before booking your flight from San Diego International Airport to Washington DC. The city comes alive during peak season, but rates are generally higher and attractions can be crowded. Go to Washington DC in low season for a more relaxed vibe.

  • Before booking a San Diego International Airport to Washington DC flight ticket, think about the kind of weather forecast you're hoping for. July is the warmest month in Washington DC, with temperatures ranging from 19ºC (66ºF) to 33ºC (91ºF).

  • Search for cheap tickets from SAN to Washington DC in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -6ºC (21ºF) and 10ºC (50ºF) on average.

More about Washington DC

Explore more of United States

  • Washington DC has plenty going for it, but there are so many other corners of United States just waiting to be discovered. About 322 kilometres north-east of Washington DC, a visit to New York will keep you on the move. Don't miss top attractions like Statue of Liberty, Central Park and Empire State Building.

  • Philadelphia is another sought-after destination in United States and is around 193 kilometres north-east of Washington DC. No trip is complete without visiting Liberty Bell, Independence Hall and Philadelphia Museum of Art.

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

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.