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Cheap flights from San Diego to Washington, D.C. from £137

SAN — WAS
10 Dec — 17 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Diego to Washington, D.C.

Enter your travel dates to find the best prices.

Cheapest flights from San Diego to Washington, D.C.

Sat 19/1221:50 -
Nonstop4h 47m
Tue 5/116:15 -
1 stop7h 27m
Deal found 7/11£257
Wed 16/1209:40 -
Nonstop4h 59m
Mon 18/118:53 -
Nonstop5h 54m
Deal found 5/11£259
Fri 11/1221:45 -
Nonstop4h 42m
Sat 12/1208:20 -
1 stop7h 53m
Deal found 8/11£262
Sat 5/1206:15 -
1 stop7h 00m
Sat 12/1215:00 -
1 stop7h 59m
Deal found 9/11£263
Wed 9/1208:00 -
Nonstop4h 56m
Mon 14/1208:30 -
1 stop7h 54m
Deal found 5/11£266
Tue 1/1212:31 -
1 stop8h 05m
Sat 5/1215:00 -
1 stop7h 59m
Deal found 9/11£268
Thu 31/1221:50 -
Nonstop4h 47m
Tue 5/117:40 -
Nonstop5h 54m
Deal found 8/11£268
Fri 4/1206:15 -
1 stop7h 08m
Sun 6/1206:00 -
1 stop7h 27m
Deal found 5/11£270
Fri 11/1213:36 -
1 stop7h 11m
Tue 15/1212:38 -
1 stop10h 23m
Deal found 9/11£274
Thu 3/1211:06 -
1 stop7h 24m
Wed 16/1207:00 -
1 stop8h 29m
Deal found 6/11£274
Tue 1/1222:30 -
1 stop7h 46m
Mon 14/1207:26 -
1 stop8h 36m
Deal found 6/11£278

Find flight deals from San Diego to Washington, D.C.

Round-trip from

£257

One-way from

£137

Popular in

October

Cheapest in

February

Average price

£356
Alaska Airlines
  • Alaska Airlines
  • 17/2-20/2
  • 2 total stops
  • 23h 39m total
  • San Diego to Washington, D.C.
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United Airlines
  • United Airlines
  • 12/1-31/12
  • Nonstop
  • 4h 47m total
  • San Diego to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£28 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in November 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from San Diego to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Thu 14/1

12:25-23:17

1 stop7h 52m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£145

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Mon 11/1

06:15-18:05

1 stop8h 50m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£145

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Mon 1/3

22:25-09:50

1 stop8h 25m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£145

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Sun 10/1

11:05-23:50

1 stop9h 45m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£145

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Fri 18/12

11:44-00:31

1 stop9h 47m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£145

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Thu 7/1

11:05-23:50

1 stop9h 45m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£145

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Mon 18/1

11:05-23:50

1 stop9h 45m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£145

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Mon 4/1

11:05-23:50

1 stop9h 45m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£145
Fastest return journey

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Sat 19/12

21:50-05:37

Nonstop4h 47m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£147

San DiegoWashington, D.C.

SAN San Diego - IAD Washington, D.C. Dulles Intl

SANIAD

San Diego

Mon 11/1

09:56-17:50

Nonstop4h 54m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-21:00

Nonstop0h 00m

£152

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from San Diego to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from San Diego with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from San Diego to Washington, D.C.

What is the cheapest month to book a flight from San Diego to Washington, D.C.?

Currently, February is the cheapest month in which you can book a flight from San Diego to Washington, D.C. (average of £264). Flying from San Diego to Washington, D.C. in October is currently the most expensive (average of £384). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to WAS?

When flying from San Diego to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from San Diego to Washington, D.C.

The most flights from SAN to WAS are scheduled on a Friday (16 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

How much does it cost for a return flight from San Diego to Washington, D.C.?

Airfare is below average for this route at the moment.
San Diego to Washington, D.C. flights typically cost between £266 and £487 in December.
The cheapest return price found within the last 5 days was £257 on United Airlines (19 Dec–5 Jan).

How often are flights from San Diego to Washington, D.C. delayed?

About 12% of weekly flights between San Diego and Washington, D.C. have experienced delays in the past year, with the average delay time being 139 minutes.

What is the most punctual flight time for San Diego to Washington, D.C. flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on San Diego to Washington, D.C. flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 9% of flights being delayed.

How far ahead should I book a flight from San Diego to Washington, D.C.?

To ensure you get the cheapest price possible for a flight from San Diego to Washington, D.C., you should look to book at least 74 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

  • What airport do you fly from for flights from San Diego to Washington, D.C.?

    San Diego (SAN) is the airport you will fly out of if you book a flight from San Diego to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from San Diego; the airport handles an average of 11 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the San Diego airport to Washington, D.C.. It is only a 2.6 mi journey to San Diego (SAN) from San Diego’s city center.

  • How long is the flight from San Diego to Washington, D.C.?

    United Airlines and Delta can get you from San Diego to Washington, D.C. in just under 7h 35m. Your travel time can differ by up to 1h 45m. The distance between San Diego and Washington, D.C. is about 2248 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from San Diego to Washington, D.C.?

    No one likes to see their flight delayed. When booking a flight from San Diego to Washington, D.C. consider choosing ITA Airways (100%), Ethiopian Air (93%) or Austrian Airlines (85%) as they are the most reliable in getting you off to your destination on time.

  • Can I find deals for flights from San Diego to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on San Diego to Washington, D.C. flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Washington, D.C..

  • Can I find deals for business class flights from San Diego to Washington, D.C.?

    Yes. Cheapflights offers flight deals from San Diego to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Diego to Washington, D.C.?

    Currently, February is the cheapest month in which you can book a flight from San Diego to Washington, D.C. (average of £264). Flying from San Diego to Washington, D.C. in October is currently the most expensive (average of £384). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Alexandria
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Glen Burnie
Springfield

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for San Diego to Washington, D.C.

San Francisco to Dulles Intl flights
Los Angeles to Reagan-National flights
Los Angeles to Dulles Intl flights

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How does Cheapflights help users find flights from San Diego to Washington, D.C.?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Diego to Washington, D.C.. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from San Diego to Washington, D.C.?

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Can Cheapflights find flights from San Diego to Washington, D.C. with no change fees?

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