HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Washington, D.C.

$80+ Cheap flights from San Diego (SAN) to Washington, D.C. (WAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — WAS
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Diego to Washington, D.C. with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from San Diego to Washington, D.C. are usually found in August or September, booked 82 days in advance, depart on a Friday or Thursday and return on a Wednesday

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 February 5, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:55 am
SAN
-
BWI
1 stop7h 41m
Frontier
Tue 3/103:19 pm
BWI
-
SAN
2 stops24h 54m
Frontier
Deal found 2/4$191
This American Airlines deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:15 am
SAN
-
BWI
1 stop7h 49m
American Airlines
Tue 2/243:22 pm
BWI
-
SAN
1 stop8h 15m
American Airlines
Deal found 2/4$205
This Southwest deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/289:45 pm
SAN
-
BWI
Nonstop4h 45m
Southwest
Sat 3/78:15 pm
BWI
-
SAN
Nonstop5h 50m
Southwest
Deal found 2/3$217
This Kiwi.com deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:55 am
SAN
-
BWI
1 stop7h 41m
Multiple Airlines
Sun 3/89:43 pm
BWI
-
SAN
2 stops26h 20m
Multiple Airlines
Deal found 2/4$222
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:45 pm
SAN
-
IAD
Nonstop4h 58m
United Airlines
Sat 5/99:27 am
IAD
-
SAN
1 stop9h 38m
United Airlines
Deal found 2/3$223
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:47 am
SAN
-
DCA
1 stop10h 12m
Frontier
Sun 4/127:00 am
DCA
-
SAN
1 stop16h 26m
Frontier
Deal found 2/2$224
This Kiwi.com deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/234:49 pm
SAN
-
DCA
2 stops17h 26m
Frontier
Sat 2/282:00 pm
DCA
-
SAN
1 stop13h 08m
Frontier
Deal found 2/4$225
This Kiwi.com deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:25 am
SAN
-
DCA
1 stop27h 50m
Frontier
Fri 2/276:00 pm
DCA
-
SAN
1 stop9h 08m
Frontier
Deal found 2/4$226
This Southwest deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/109:40 pm
SAN
-
BWI
Nonstop4h 50m
Southwest
Sat 3/148:15 pm
BWI
-
SAN
Nonstop5h 50m
Southwest
Deal found 2/5$227
This Kiwi.com deal was found by Cheapflights users on 2/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/149:18 pm
SAN
-
DCA
1 stop16h 41m
Frontier
Tue 3/172:00 pm
DCA
-
SAN
1 stop13h 08m
Frontier
Deal found 2/4$227
This Alaska Airlines deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/269:28 am
SAN
-
IAD
Nonstop4h 59m
Alaska Airlines
Tue 3/36:20 pm
IAD
-
SAN
Nonstop5h 59m
Alaska Airlines
Deal found 2/5$227
This Expedia deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/99:18 pm
SAN
-
DCA
1 stop12h 44m
Frontier
Thu 3/126:00 pm
DCA
-
SAN
1 stop9h 08m
Frontier
Deal found 2/3$228

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

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$191
(Kiwi.com)

One-way from

$80
(Kiwi.com)

Popular in

July

Cheapest in

August

Average price

$354

Good round-trip deal

$266 or less

Good one-way deal

$178 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. 1% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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

 
Customize your flight search to find flights from San Diego to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 5, 2026.
Use the filters below to find and compare flights from San Diego to Washington, D.C. that are best for you.

Fly from

San Diego

Fly to

Washington, D.C.

Route

Depart

Return

Price

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Tue 3/10

9:40 pm-5:30 am

Nonstop4h 50m

Baltimore/Washington

Sat 3/14

8:15 pm-11:05 pm

Nonstop5h 50m

$217

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Thu 2/26

9:28 am-5:27 pm

Nonstop4h 59m

Washington, D.C. Dulles Intl

Tue 3/3

6:20 pm-9:19 pm

Nonstop5h 59m

$227

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Tue 4/14

8:00 am-4:07 pm

Nonstop5h 07m

Washington, D.C. Dulles Intl

Sat 4/18

5:55 pm-8:46 pm

Nonstop5h 51m

$237

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Sat 2/28

9:45 pm-5:30 am

Nonstop4h 45m

Baltimore/Washington

Sat 3/7

5:25 pm-11:00 pm

1 stop8h 35m

$237

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Sat 5/2

9:35 am-5:41 pm

Nonstop5h 06m

Washington, D.C. Dulles Intl

Fri 5/8

6:47 pm-9:31 pm

Nonstop5h 44m

$237

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Tue 4/28

8:35 am-11:00 pm

2 stops11h 25m

Washington, D.C. Reagan-National

Tue 5/5

5:20 pm-9:40 pm

1 stop7h 20m

$238

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 5/6

8:35 am-11:00 pm

2 stops11h 25m

Washington, D.C. Reagan-National

Sat 5/9

12:00 pm-5:55 pm

1 stop8h 55m

$242

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Fri 5/1

12:55 pm-9:00 pm

Nonstop5h 05m

Washington, D.C. Dulles Intl

Tue 5/5

9:27 am-3:39 pm

1 stop9h 12m

$243

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Sat 4/18

8:00 am-4:07 pm

Nonstop5h 07m

Washington, D.C. Dulles Intl

Sun 4/19

6:15 am-11:25 am

1 stop8h 10m

$247

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Fri 4/24

9:45 pm-10:20 am

1 stop9h 35m

Baltimore/Washington

Mon 4/27

5:33 pm-11:25 pm

1 stop8h 52m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 60 results
1
2
3
...
6

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice 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.
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.

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Washington, D.C.. Price data was last updated on January 30, 2026.

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 82 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 month to book a flight from San Diego to Washington, D.C.?

Currently, June is the cheapest month in which you can book a flight from San Diego to Washington, D.C. (average of $99). Flying from San Diego to Washington, D.C. in December is currently the most expensive (average of $186). 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?

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 February 5, 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 24% on your trip compared to booking a flight at noon.

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 January 31, 2026.

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

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

Explore weekly flight availability from San Diego to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 5, 2026.

The most flights from SAN to WAS are scheduled on a Thursday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

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

What’s the top layover airport for flights from San Diego to Washington, D.C.?

Share of 1-stop round-trip flights from San Diego to Washington, D.C. chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 78% of 1-stop itineraries from San Diego to Washington, D.C. on Cheapflights.

What’s the cheapest layover airport for flights from San Diego to Washington, D.C.?

Average round-trip fare for 1-stop flights from San Diego to Washington, D.C., chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $298.

What’s the fastest layover option from San Diego to Washington, D.C.?

Shortest average travel time for 1-stop one-way flights from San Diego to Washington, D.C., based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 7h 23m.

Which airport typically offers the quickest layover for flights from San Diego to Washington, D.C.?

Average layover duration for 1-stop one-way flights from San Diego to Washington, D.C., chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 44m.

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

About 13% of weekly flights between San Diego and Washington, D.C. have experienced delays in the past year, with the average delay time being 147 minutes.

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

Historically, flights departing at night 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 Sunday 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.

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
Robert Schrader

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.

Read more
Harriet Baskas

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.

Read more
Blane Bachelor

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.

Read more
Ramsey Qubein

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 more

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated February 5, 2026.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Hawaiian 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.
Alaska Airlines
8.0
Very good
11,843 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,843 reviews
Alaska Airlines
8.0
Very good
11,843 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,276 reviews
Alaska Airlines
8.0
Very good
11,843 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Hawaiian Airlines
7.8
Good
2,831 reviews
Alaska Airlines
8.0
Very good
11,843 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,241 reviews
Alaska Airlines
8.0
Very good
11,843 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Frontier
5.7
Fair
3,053 reviews
Alaska Airlines
8.0
Very good
11,843 reviews

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from San Diego to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 8 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 45m. San Diego and Washington, D.C. are separated by a distance of 2289 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 $113 on this airline. Additional options worth looking into are Delta and Hawaiian Airlines, starting at $138 and $158 round-trip. Frontier is priced at 68% 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?

    $72 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and Alaska Airlines, with prices starting from $108 and $118, respectively.

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

    While some choose either San Diego - Washington, D.C. Reagan-National or San Diego - Baltimore/Washington, 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: Ethiopian Air (89%), Brussels Airlines (89%), American Airlines (88%).

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

    The cheapest flight price from San Diego to Washington, D.C. is $138. On average you can expect to pay $767. The most popular route, (San Diego - Washington, D.C. Dulles Intl), can usually be booked for $207.

  • 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, June is the cheapest month in which you can book a flight from San Diego to Washington, D.C. (average of $99). Flying from San Diego to Washington, D.C. in December is currently the most expensive (average of $186). 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

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Upper Marlboro
Manassas
Largo
Bowie
McLean
Clinton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Reagan-National flights
Los Angeles to Dulles Intl flights
San Francisco to Reagan-National flights
San Francisco to Dulles Intl flights
Ontario to Dulles Intl flights
Ontario to Reagan-National flights
San Diego to Dulles Intl flights
San Diego to Reagan-National flights
Las Vegas to Dulles Intl flights
San Jose to Dulles Intl flights
Oakland to Dulles Intl flights
Santa Ana to Dulles Intl flights
Sacramento to Dulles Intl flights
San Jose to Reagan-National flights
Oakland to Reagan-National flights
Santa Ana to Reagan-National flights
Las Vegas to Reagan-National flights
Burbank to Dulles Intl flights
Sacramento to Reagan-National flights
Burbank to Reagan-National flights
Fresno to Dulles Intl flights
Fresno to Reagan-National flights
Reno to Dulles Intl flights
Palm Springs to Dulles Intl flights
Santa Barbara to Dulles Intl flights
Reno to Reagan-National flights
Palm Springs to Reagan-National flights
Long Beach to Dulles Intl flights
Arcata to Dulles Intl flights
Santa Barbara to Reagan-National flights
Monterey to Dulles Intl flights
Monterey to Reagan-National flights
San Luis Obispo to Reagan-National flights
Long Beach to Reagan-National flights
Redding to Dulles Intl flights
Bakersfield to Dulles Intl flights
Santa Rosa to Dulles Intl flights
San Luis Obispo to Dulles Intl flights
Medford to Dulles Intl flights
Medford to Reagan-National flights
Santa Rosa to Reagan-National flights
Bakersfield to Reagan-National flights
Redding to Reagan-National flights
Yuma to Reagan-National flights
Yuma to Dulles Intl flights

Top 8 airlines flying from San Diego to Washington, D.C.

Discover the top 8 airlines that operate flights from San Diego to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$113Average$256FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$115Average$233FlexibilityNo cancel feeOn-time65%
DeltaCheapest$138Average$392FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$158Average$343FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$197Average$344FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$216Average$417FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$221Average$411FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$256Average$447FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.