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

Departing from San Diego to Washington, D.C. will take you 4h 59m. San Diego and Washington, D.C. are separated by a distance of 2248 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from San Diego to Washington, D.C. round-trip?

Our cheapest airline available from San Diego to Washington, D.C. is Frontier. Our recent data shows that you can find tickets from as low as $130 on this airline. Additional options worth looking into are JetBlue and Alaska Airlines, starting at $147 and $237 round-trip. Frontier is priced at 67% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from San Diego to Washington, D.C. one-way?

$87 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Frontier and Delta, with prices starting from $108 and $128, respectively.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from San Diego to Washington, D.C.?

While some choose either San Diego - Baltimore/Washington or San Diego - Washington, D.C. Reagan-National, San Diego - Washington, D.C. Dulles Intl is the most popular route from San Diego to Washington, D.C..

What are the cheapest flights from San Diego to Washington, D.C.?

The cheapest flight price from San Diego to Washington, D.C. is $178. On average you can expect to pay $1,469. The most popular route, (San Diego - Washington, D.C. Dulles Intl), can usually be booked for $317.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Diego to Washington, D.C. on time: Austrian Airlines (87%), Brussels Airlines (87%), Ethiopian Air (77%).

What are the most popular airlines that fly from San Diego to Washington, D.C.?

The most popular airlines flying from San Diego to Washington, D.C. are Alaska Airlines, United Airlines and Frontier. Something to consider prior to booking your flight.

Most accurate provider : When it comes to deals on San Diego-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Washington, D.C. flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Diego-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Located just 2.6 mi from the city center, San Diego is the airport most travelers will use when flying to Washington, D.C. from San Diego. Booking flights from San Diego (SAN) to Washington, D.C. should be relatively easy as there are 10 daily outbound flights to Washington, D.C. from 7 different airlines.

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 vacation 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.

$134+ Cheap Flights from San Diego to Washington, D.C.

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Cheapflights Tip: The best prices from San Diego to Washington, D.C. are usually found in February or May, booked 29 days in advance, depart on a Friday or Thursday and return on a Saturday

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

Cheapest

Best

Last-minute

One-way

Cheapest flights from San Diego to Washington, D.C.
Explore the most affordable flight options available from San Diego to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 28, 2026.

Mon 11/98:32 pm -

2 stops20h 43m

Mon 11/166:28 pm -

2 stops18h 43m

Deal found 9/24

$272

Tue 10/2010:27 pm -

1 stop7h 18m

Thu 10/295:00 am -

1 stop7h 10m

Deal found 9/23

$277

Wed 10/1410:30 pm -

1 stop9h 00m

Wed 10/213:04 pm -

1 stop9h 20m

Deal found 9/24

$278

Tue 11/311:21 am -

1 stop8h 47m

Tue 11/105:31 pm -

1 stop8h 09m

Deal found 9/24

$283

Sat 11/76:25 am -

2 stops15h 08m

Mon 11/96:28 pm -

2 stops18h 43m

Deal found 9/27

$287

Fri 10/308:32 pm -

2 stops20h 43m

Mon 11/26:28 pm -

2 stops18h 43m

Deal found 9/26

$289

Wed 10/219:25 pm -

1 stop8h 20m

Fri 10/235:00 am -

1 stop7h 10m

Deal found 9/23

$292

Tue 10/203:14 pm -

2 stops15h 13m

Mon 10/266:25 pm -

2 stops18h 46m

Deal found 9/25

$294

Mon 10/269:34 am -

1 stop22h 34m

Mon 11/26:28 pm -

2 stops18h 43m

Deal found 9/27

$298

Wed 10/142:01 pm -

2 stops19h 03m

Sat 10/176:00 pm -

1 stop8h 56m

Deal found 9/24

$340

Fri 10/169:34 am -

1 stop23h 00m

Wed 10/288:05 am -

2 stops38h 42m

Deal found 9/24

$341

Mon 10/268:34 pm -

2 stops22h 16m

Sat 10/316:00 pm -

1 stop8h 57m

Deal found 9/25

$342

Best flights from San Diego to Washington, D.C.
Discover carefully curated flight deals from San Diego to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.

Tue 10/201:50 pm -

1 stop7h 30m

Mon 10/269:35 pm -

Nonstop5h 40m

Deal found 9/25

$327

Wed 10/215:01 pm -

1 stop9h 44m

Mon 10/266:32 pm -

1 stop7h 52m

Deal found 9/27

$327

Sat 12/59:40 am -

Nonstop4h 59m

Fri 1/17:04 pm -

Nonstop5h 45m

Deal found 9/25

$387

Mon 12/77:41 pm -

1 stop8h 02m

Wed 12/912:35 pm -

Nonstop5h 43m

Deal found 9/27

$387

Tue 10/201:50 pm -

1 stop7h 30m

Thu 10/229:35 pm -

Nonstop5h 40m

Deal found 9/25

$327

Wed 11/49:20 am -

1 stop6h 55m

Thu 11/58:45 pm -

Nonstop5h 35m

Deal found 9/23

$327

Wed 12/165:11 pm -

1 stop9h 49m

Mon 1/184:39 pm -

1 stop9h 24m

Deal found 9/25

$372

Wed 10/147:41 pm -

2 stops11h 49m

Wed 10/218:05 am -

1 stop8h 39m

Deal found 9/24

$388

Thu 10/225:20 pm -

1 stop9h 00m

Tue 10/277:02 am -

2 stops12h 38m

Deal found 9/27

$404

Fri 12/116:30 am -

Nonstop4h 50m

Thu 12/177:20 pm -

1 stop8h 00m

Deal found 9/24

$342

Sat 10/312:10 pm -

1 stop7h 41m

Fri 11/611:02 am -

1 stop8h 23m

Deal found 9/25

$396

Fri 12/1112:58 pm -

Nonstop5h 02m

Mon 12/146:59 pm -

1 stop15h 41m

Deal found 9/27

$407

Fri 10/237:30 pm -

1 stop7h 15m

Fri 10/306:10 am -

Nonstop5h 35m

Deal found 9/23

$357

Sun 12/2010:30 pm -

1 stop7h 24m

Thu 12/316:00 am -

1 stop7h 45m

Deal found 9/26

$407

Tue 12/1512:35 pm -

Nonstop4h 54m

Sun 12/205:40 pm -

Nonstop5h 54m

Deal found 9/25

$468

Sat 10/319:46 am -

Nonstop5h 04m

Fri 11/66:46 pm -

Nonstop5h 41m

Deal found 9/25

$439

Sat 10/318:00 am -

1 stop9h 39m

Fri 11/65:59 pm -

1 stop7h 41m

Deal found 9/25

$408

Fri 10/302:30 pm -

1 stop7h 15m

Sun 11/16:20 am -

Nonstop5h 45m

Deal found 9/25

$382

Mon 12/217:10 pm -

1 stop7h 09m

Tue 1/57:00 am -

1 stop7h 35m

Deal found 9/24

$482

Wed 12/169:40 am -

Nonstop4h 59m

Mon 1/186:53 pm -

Nonstop5h 54m

Deal found 9/24

$457

Tue 12/156:35 am -

Nonstop4h 45m

Sun 12/204:40 pm -

Nonstop5h 35m

Deal found 9/25

$397

Fri 12/117:41 pm -

2 stops11h 15m

Mon 12/146:05 am -

1 stop7h 54m

Deal found 9/24

$512

Sat 12/129:40 am -

Nonstop4h 59m

Sun 12/207:04 pm -

Nonstop5h 45m

Deal found 9/27

$472

Sat 12/1912:13 pm -

1 stop8h 20m

Tue 1/56:10 am -

1 stop7h 46m

Deal found 9/25

$497

Tue 12/1512:10 pm -

2 stops8h 40m

Sun 12/204:20 pm -

1 stop7h 00m

Deal found 9/25

$438

Sat 12/191:07 pm -

Nonstop4h 53m

Tue 1/55:05 pm -

1 stop19h 45m

Deal found 9/25

$507

Sat 11/77:45 am -

2 stops13h 57m

Wed 11/1112:35 pm -

1 stop11h 08m

Deal found 9/25

$525

Sat 12/127:41 pm -

2 stops12h 02m

Sun 12/207:35 am -

2 stops11h 39m

Deal found 9/25

$602

Thu 10/229:46 am -

Nonstop5h 04m

Tue 10/277:24 pm -

Nonstop5h 29m

Deal found 9/27

$512

Sat 12/127:00 am -

2 stops9h 55m

Sun 12/202:45 pm -

2 stops11h 15m

Deal found 9/27

$467

Last-minute flights from San Diego to Washington, D.C.
Discover last-minute flight deals from San Diego to Washington, D.C.. Data last updated September 28, 2026 and is based on user searches.

Wed 10/1410:30 pm -

1 stop9h 00m

Wed 10/213:04 pm -

1 stop9h 20m

Deal found 9/24

$278

Wed 10/142:01 pm -

2 stops19h 03m

Sat 10/176:00 pm -

1 stop8h 56m

Deal found 9/24

$340

Thu 10/1510:30 pm -

1 stop9h 00m

Tue 10/275:31 pm -

1 stop8h 09m

Deal found 9/23

$308

Fri 10/169:34 am -

1 stop23h 00m

Wed 10/288:05 am -

2 stops38h 42m

Deal found 9/24

$341

Mon 10/198:34 pm -

2 stops20h 43m

Mon 10/266:25 pm -

2 stops18h 46m

Deal found 9/26

$305

Tue 10/2010:27 pm -

1 stop7h 18m

Thu 10/295:00 am -

1 stop7h 10m

Deal found 9/23

$277

Tue 10/203:14 pm -

2 stops15h 13m

Mon 10/266:25 pm -

2 stops18h 46m

Deal found 9/25

$294

Wed 10/219:25 pm -

1 stop8h 20m

Fri 10/235:00 am -

1 stop7h 10m

Deal found 9/23

$292

Sat 10/246:25 am -

2 stops15h 09m

Sat 10/3110:16 am -

2 stops16h 41m

Deal found 9/25

$307

Mon 10/269:34 am -

1 stop22h 34m

Mon 11/26:28 pm -

2 stops18h 43m

Deal found 9/27

$298

Mon 10/268:34 pm -

2 stops22h 16m

Sat 10/316:00 pm -

1 stop8h 57m

Deal found 9/25

$342

Fri 10/308:32 pm -

2 stops20h 43m

Mon 11/26:28 pm -

2 stops18h 43m

Deal found 9/26

$289

One-way flights from San Diego to Washington, D.C.
Search for one-way flight options from San Diego to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.

Tue 10/277:33 pm -

2 stops39h 43m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/27

$134

Wed 10/219:25 pm -

1 stop8h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/23

$139

Wed 10/710:30 pm -

1 stop9h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/23

$142

Wed 11/46:25 am -

2 stops28h 51m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/27

$145

Wed 10/286:25 am -

2 stops28h 51m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/24

$146

Fri 10/308:32 pm -

2 stops20h 43m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/24

$152

Wed 10/282:08 pm -

1 stop7h 22m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/28

$184

Thu 10/152:01 pm -

2 stops28h 58m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/24

$185

Fri 10/169:34 am -

2 stops28h 39m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/25

$186

Mon 10/198:20 pm -

1 stop18h 01m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/23

$187

Mon 10/198:34 pm -

2 stops17h 39m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/25

$188

Sun 10/2510:40 pm -

1 stop7h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/25

$189

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$272 (Flightnetwork)
One-way from	$134 (Kiwi.com)
Popular in	June
Cheapest in	February
Average price	$426
Good round-trip deal	$413 or less
Good one-way deal	$247 or less

Provider with most accurate pricing for San Diego-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Diego-Washington, D.C. (WAS) flights.

Search Deals

From San Diego to Washington, D.C. (WAS)

Search Deals

One-way flight from San Diego to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from San Diego to Washington, D.C. (WAS).

Search Deals

Price to beat on a one-way flight from San Diego to Washington, D.C. (WAS).

Search Deals

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 round-trip

San DiegoBaltimore

SAN San Diego - BWI Baltimore/Washington

SANBWI

San Diego

Wed 10/21

3:15 pm-11:15 pm

Nonstop5h 00m

Baltimore/Washington

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$159

San DiegoBaltimore

SAN San Diego - BWI Baltimore/Washington

SANBWI

San Diego

Sat 12/5

6:15 am-2:05 pm

Nonstop4h 50m

Baltimore/Washington

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$159

San DiegoBaltimore

SAN San Diego - BWI Baltimore/Washington

SANBWI

San Diego

Mon 10/26

5:05 pm-1:05 am

Nonstop5h 00m

Baltimore/Washington

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$159

San DiegoBaltimore

SAN San Diego - BWI Baltimore/Washington

SANBWI

San Diego

Wed 12/16

6:15 am-6:29 pm

1 stop9h 14m

Baltimore/Washington

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$164

San DiegoBaltimore

SAN San Diego - BWI Baltimore/Washington

SANBWI

San Diego

Tue 12/8

6:15 am-6:29 pm

1 stop9h 14m

Baltimore/Washington

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$164

San DiegoBaltimore

SAN San Diego - BWI Baltimore/Washington

SANBWI

San Diego

Thu 10/29

5:01 pm-5:45 am

1 stop9h 44m

Baltimore/Washington

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$164

San DiegoBaltimore

SAN San Diego - BWI Baltimore/Washington

SANBWI

San Diego

Mon 11/9

2:33 pm-12:58 am

1 stop7h 25m

Baltimore/Washington

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$164

San DiegoBaltimore

SAN San Diego - BWI Baltimore/Washington

SANBWI

San Diego

Mon 10/19

10:30 pm-10:30 am

1 stop9h 00m

Baltimore/Washington

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$167

San DiegoBaltimore

SAN San Diego - BWI Baltimore/Washington

SANBWI

San Diego

Fri 10/30

9:50 pm-5:45 am

Nonstop4h 55m

Baltimore/Washington

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$174

San DiegoBaltimore

SAN San Diego - BWI Baltimore/Washington

SANBWI

San Diego

Fri 10/16

5:05 pm-1:05 am

Nonstop5h 00m

Baltimore/Washington

Wed 12/31

12:00 am-9:00 pm

Nonstop0h 00m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/27

Showing 1-10 of 60 resultsSorted by cheapest first

...

Compare providers for flights from San Diego to Washington, D.C.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Washington, D.C. in September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	Price Accuracy2 stars	Trust Score*1 star
Priceline	Price Accuracy1 star	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
JustAirTicket	Price Accuracy-	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on San Diego-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Washington, D.C. flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Diego-Washington, D.C. flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Washington, D.C. flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

SAN-WAS

SAN-BWI

SAN-IAD

SAN-DCA

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

SAN-WAS

SAN-BWI

SAN-IAD

SAN-DCA

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 $354). Flying from San Diego to Washington, D.C. in June is currently the most expensive (average of $462). 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?

A simple way to save on the total cost of your ticket is to fly from San Diego to Washington, D.C. in the afternoon. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight at noon.

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

The most flights from SAN to WAS are scheduled on a Friday (12 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from San Diego to Washington, D.C.?

Airfare is typical for this route at the moment.

San Diego to Washington, D.C. flights typically cost between $260 and $518 in November.
The cheapest round-trip price found within the last 5 days was $272 on Frontier (Nov 9-Nov 16).

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 last 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 30 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.

What is the cheapest day to fly from San Diego to Washington, D.C.?

Travelers seeking maximum savings on their San Diego to Washington, D.C. flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for San Diego to Washington, D.C. flights

Cheapflights partnered with top experts to bring you the best recommendations for your San Diego to Washington, D.C. trip

Our travel experts

Robert Schrader

Expert on Alaska Airlines

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Harriet Baskas

Expert on United Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Blane Bachelor

Expert on SAN

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read reviews from past customers who have flown Southwest,Alaska Airlines, andUnited Airlines from San Diego to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,201 reviews

Reviews

1 / 20

6.0

Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest

8.0

Very good

4,201 reviews

Southwest

8.0

Very good

4,201 reviews

Reviews

1 / 20

6.0

Good

Lauren,Dec 2024

MCI - DCA

Alaska Airlines

7.9

Good

12,985 reviews

Southwest

8.0

Very good

4,201 reviews

Reviews

1 / 20

6.0

Good

Lauren,Dec 2024

MCI - DCA

United Airlines

7.4

Good

10,251 reviews

Southwest

8.0

Very good

4,201 reviews

Reviews

1 / 20

6.0

Good

Lauren,Dec 2024

MCI - DCA

American Airlines

7.0

Good

12,099 reviews

Southwest

8.0

Very good

4,201 reviews

Reviews

1 / 20

6.0

Good

Lauren,Dec 2024

MCI - DCA

Frontier

5.6

Fair

2,568 reviews

Southwest

8.0

Very good

4,201 reviews

Reviews

1 / 20

6.0

Good

Lauren,Dec 2024

MCI - DCA

Related info for your journey

What airport do you fly from for flights from San Diego to Washington, D.C.?
Located just 2.6 mi from the city center, San Diego is the airport most travelers will use when flying to Washington, D.C. from San Diego. Booking flights from San Diego (SAN) to Washington, D.C. should be relatively easy as there are 10 daily outbound flights to Washington, D.C. from 7 different airlines.
How long is the flight from San Diego to Washington, D.C.?
Departing from San Diego to Washington, D.C. will take you 4h 59m. San Diego and Washington, D.C. are separated by a distance of 2248 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from San Diego to Washington, D.C. round-trip?
Our cheapest airline available from San Diego to Washington, D.C. is Frontier. Our recent data shows that you can find tickets from as low as $130 on this airline. Additional options worth looking into are JetBlue and Alaska Airlines, starting at $147 and $237 round-trip. Frontier is priced at 67% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from San Diego to Washington, D.C. one-way?
$87 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Frontier and Delta, with prices starting from $108 and $128, respectively.
What are the most popular routes from San Diego to Washington, D.C.?
While some choose either San Diego - Baltimore/Washington or San Diego - Washington, D.C. Reagan-National, San Diego - Washington, D.C. Dulles Intl is the most popular route from San Diego to Washington, D.C..
What are the most reliable airlines from San Diego to Washington, D.C.?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Diego to Washington, D.C. on time: Austrian Airlines (87%), Brussels Airlines (87%), Ethiopian Air (77%).
What are the cheapest flights from San Diego to Washington, D.C.?
The cheapest flight price from San Diego to Washington, D.C. is $178. On average you can expect to pay $1,469. The most popular route, (San Diego - Washington, D.C. Dulles Intl), can usually be booked for $317.
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 vacation 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 $354). Flying from San Diego to Washington, D.C. in June is currently the most expensive (average of $462). 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.

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Top 7 airlines flying from San Diego to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$130	Average$256	FlexibilityNo cancel fee	On-time62%
JetBlue	Cheapest$147	Average$370	FlexibilityNo cancel fee	On-time62%
Alaska Airlines	Cheapest$197	Average$405	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$208	Average$392	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$252	Average$434	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$253	Average$444	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$278	Average$483	FlexibilityNo cancel fee	On-time71%

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$134+ Cheap flights from San Diego (SAN) to Washington, D.C. (WAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/27. Fares are subject to change and may not be available on all flights or dates of travel.

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

Cheapest flights from San Diego to Washington, D.C.Explore the most affordable flight options available from San Diego to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 28, 2026.

Explore the most affordable flight options available from San Diego to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 28, 2026.

Best flights from San Diego to Washington, D.C.Discover carefully curated flight deals from San Diego to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.

Discover carefully curated flight deals from San Diego to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.

Last-minute flights from San Diego to Washington, D.C.Discover last-minute flight deals from San Diego to Washington, D.C.. Data last updated September 28, 2026 and is based on user searches.

Discover last-minute flight deals from San Diego to Washington, D.C.. Data last updated September 28, 2026 and is based on user searches.

One-way flights from San Diego to Washington, D.C.Search for one-way flight options from San Diego to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.

Search for one-way flight options from San Diego to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.

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

Compare providers for flights from San Diego to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Washington, D.C. in September.

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.

Cheapflights Insights

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

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

Find hourly flight availability from San Diego to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 28, 2026.

A simple way to save on the total cost of your ticket is to fly from San Diego to Washington, D.C. in the afternoon. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight at noon.

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

The most flights from SAN to WAS are scheduled on a Friday (12 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost to fly round-trip from San Diego to Washington, D.C.?

Airfare is typical for this route at the moment.

San Diego to Washington, D.C. flights typically cost between $260 and $518 in November.The cheapest round-trip price found within the last 5 days was $272 on Frontier (Nov 9-Nov 16).

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 last 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 30 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.

What is the cheapest day to fly from San Diego to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from San Diego to Washington, D.C.. Price data was last updated on September 26, 2026.

Travelers seeking maximum savings on their San Diego to Washington, D.C. flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for San Diego to Washington, D.C. flights

AI-powered summary based on content written by travel experts. AI can make mistakes.

Cheapflights partnered with top experts to bring you the best recommendations for your San Diego to Washington, D.C. trip

Our travel experts

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown Southwest,Alaska Airlines, andUnited Airlines from San Diego to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

What are the cheapest airlines flying from San Diego to Washington, D.C. round-trip?

What are the cheapest airlines to fly from San Diego to Washington, D.C. one-way?

What are the most popular routes from San Diego to Washington, D.C.?

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

What are the cheapest flights from San Diego to Washington, D.C.?

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

How can I 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.?

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

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

Browse thousands of different options on Cheapflights for your next trip

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

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Washington, D.C. by adding a car rental and/or hotel reservation to your travel itinerary.

Cheapest flights from San Diego to Washington, D.C.
Explore the most affordable flight options available from San Diego to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 28, 2026.

Best flights from San Diego to Washington, D.C.
Discover carefully curated flight deals from San Diego to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.

Last-minute flights from San Diego to Washington, D.C.
Discover last-minute flight deals from San Diego to Washington, D.C.. Data last updated September 28, 2026 and is based on user searches.

One-way flights from San Diego to Washington, D.C.
Search for one-way flight options from San Diego to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.

San Diego to Washington, D.C. flights typically cost between $260 and $518 in November.
The cheapest round-trip price found within the last 5 days was $272 on Frontier (Nov 9-Nov 16).