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Washington, D.C.

$65+ 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — WAS
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Washington, D.C. are usually found in August or September, booked 90 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap 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 October 28, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$237
(Alaska Airlines)

One-way from

$65
(Priceline)

Popular in

July

Cheapest in

August

Average price

$337

Good round-trip deal

$260 or less

Good one-way deal

$178 or less
Provider with most accurate pricing for San Diego-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for San Diego-Washington, D.C. (WAS) flights.
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From San Diego to Washington, D.C. (WAS)
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One-way flight from San Diego to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 2% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from San Diego to Washington, D.C. (WAS).
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Price to beat on a one-way flight from San Diego to Washington, D.C. (WAS).
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Find 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 October 28, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
Tue 12/912:52 pmSAN - DCA
Nonstop5h 10mAlaska Airlines
Sat 12/138:59 amDCA - SAN
Nonstop5h 54mAlaska Airlines
Deal found 10/26$237
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/612:52 pmSAN - DCA
Nonstop5h 10mHawaiian Airlines
Sat 12/138:59 amDCA - SAN
Nonstop5h 54mHawaiian Airlines
Deal found 10/27$240
This Southwest deal was found by Cheapflights users on 10/28. 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 12/67:25 amSAN - DCA
1 stop6h 45mSouthwest
Sat 12/136:55 amDCA - SAN
2 stops14h 05mSouthwest
Deal found 10/28$242
This CheapOair deal was found by Cheapflights users on 10/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:34 amSAN - DCA
1 stop27h 32mFrontier
Sun 1/46:00 pmDCA - SAN
1 stop8h 59mFrontier
Deal found 10/26$243
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/310:52 amSAN - IAD
1 stop7h 26mUnited Airlines
Sun 12/79:00 amIAD - SAN
Nonstop5h 38mUnited Airlines
Deal found 10/28$243
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/194:47 pmSAN - DCA
1 stop17h 14mFrontier
Thu 12/252:00 pmDCA - SAN
1 stop8h 15mFrontier
Deal found 10/28$244
This Frontier deal was found by Cheapflights users on 10/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:41 amSAN - DCA
1 stop7h 18mFrontier
Wed 12/176:00 pmDCA - SAN
1 stop7h 46mFrontier
Deal found 10/27$246
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/311:02 amSAN - IAD
1 stop6h 37mUnited Airlines
Sun 12/149:00 amIAD - SAN
Nonstop5h 38mUnited Airlines
Deal found 10/28$247
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/248:39 amSAN - BWI
2 stops22h 40mMultiple Airlines
Thu 12/410:27 amBWI - SAN
1 stop16h 24mMultiple Airlines
Deal found 10/28$249
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Wed 12/246:25 amSAN - DCA
1 stop12h 34mFrontier
Tue 12/306:00 pmDCA - SAN
1 stop8h 59mFrontier
Deal found 10/26$249
This CheapOair deal was found by Cheapflights users on 10/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:41 amSAN - DCA
1 stop27h 21mFrontier
Mon 11/36:00 pmDCA - SAN
1 stop21h 07mFrontier
Deal found 10/25$252
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/46:25 amSAN - BWI
1 stop8h 36mMultiple Airlines
Sun 12/78:48 pmBWI - SAN
1 stop30h 08mMultiple Airlines
Deal found 10/27$253

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 October 28, 2025.
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 DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 1/28

12:53 pm-9:00 pm

Nonstop5h 07m

Washington, D.C. Reagan-National

Mon 2/2

8:59 am-11:56 am

Nonstop5h 57m

$257

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Thu 1/29

9:10 am-5:04 pm

Nonstop4h 54m

Washington, D.C. Dulles Intl

Tue 2/3

5:26 pm-8:23 pm

Nonstop5h 57m

$257

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Sat 12/6

7:40 am-7:00 pm

1 stop8h 20m

Washington, D.C. Reagan-National

Sat 12/13

6:55 am-6:00 pm

2 stops14h 05m

$262

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Wed 12/3

10:30 am-10:00 pm

2 stops8h 30m

Washington, D.C. Dulles Intl

Thu 12/4

4:40 pm-9:10 pm

1 stop7h 30m

$262

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Tue 11/18

12:43 pm-11:15 pm

1 stop7h 32m

Washington, D.C. Dulles Intl

Thu 12/4

12:50 pm-3:28 pm

Nonstop5h 38m

$267

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 12/24

7:00 am-8:05 pm

2 stops10h 05m

Washington, D.C. Reagan-National

Fri 1/2

9:15 am-3:10 pm

2 stops8h 55m

$267

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 1/28

7:00 am-5:56 pm

1 stop7h 56m

Washington, D.C. Reagan-National

Tue 2/3

8:59 am-11:56 am

Nonstop5h 57m

$267

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 12/3

8:40 am-8:45 pm

2 stops9h 05m

Washington, D.C. Reagan-National

Thu 12/4

11:35 am-6:55 pm

2 stops10h 20m

$267

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Tue 2/17

9:15 am-5:25 pm

Nonstop5h 10m

Washington, D.C. Dulles Intl

Sat 2/21

5:51 pm-8:06 pm

Nonstop5h 15m

$267

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Tue 3/3

9:15 am-5:25 pm

Nonstop5h 10m

Washington, D.C. Dulles Intl

Wed 3/4

7:00 am-4:37 pm

1 stop12h 37m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 60 results
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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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*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 Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on San Diego-Washington, D.C. flight deals on Cheapflights vs. Justfly.com >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 Justfly.com the most. Justfly.com 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 October 24, 2025.

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 90 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 November is currently the most expensive (average of $172). 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 October 28, 2025.

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 35% 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 October 26, 2025.

Travelers seeking maximum savings on their San Diego to Washington, D.C. flight should consider departing on Saturday afternoons 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.

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 34m.

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 2h 38m.

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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Diego to Washington, D.C. trip
Airlines
Alaska Airlines

Alaska's Premium Class offers extra legroom and free cocktails, enhancing comfort on medium-haul flights.


Alaska's Wi-Fi is a flat fee, ideal for business travelers needing connectivity during flights.

Read more about Alaska Airlinesby Robert Schrader
United Airlines

United's Economy Plus offers extra legroom, ideal for added comfort on medium-haul flights.


United's Polaris Lounges offer showers and dining, enhancing the premium travel experience.

Read more about United Airlinesby Harriet Baskas
Airports
SAN

Plan for traffic congestion around SAN, especially during peak times. Arrive early to avoid stress before your flight.

Read more about SANby Blane Bachelor
IAD

Use the Washington Metro's Silver Line for a cost-effective way to reach IAD, just five minutes from the main terminal.

Read more about IADby Ramsey Qubein
Our travel experts
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

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 Baskas

Harriet Baskas

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

Blane Bachelor

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

Ramsey Qubein

Ramsey Qubein

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 October 28, 2025.
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
11,199 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,199 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,237 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,794 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,996 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,122 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Entertainment

7.0

Boarding

8.1

Crew

8.5

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 8 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 5h 07m. San Diego and Washington, D.C. are separated by a distance of 2270 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 $133 on this airline. Additional options worth looking into are Hawaiian Airlines and Delta, starting at $158 and $168 round-trip. Frontier is priced at 62% 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?

    $139 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Alaska Airlines and Delta, with prices starting from $139 and $139, 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: Ethiopian Air (97%), United Airlines (96%), Austrian Airlines (95%).

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

    The cheapest flight price from San Diego to Washington, D.C. is $128. On average you can expect to pay $1,000. The most popular route, (San Diego - Washington, D.C. Dulles Intl), can usually be booked for $219.

  • Where are the most common layover locations when flying from San Diego to Washington, D.C.?

    Flights departing from San Diego and landing in Washington, D.C. layover in Denver most frequently.

  • What are some popular things to do or see while on a layover in Denver?

    Coors Field, 16th Street Mall, and Paramount Theatre are the most popular attractions in Denver if you're in need of something to do during your layover. Those on a layover in Denver interested in visiting Coors Field, 16th Street Mall, or Paramount Theatre can do so by traveling 18.4 mi, 18.7 mi, and 18.6 mi, respectively from Denver Intl. Those on a layover in Denver in need of a rental car can book one at Denver Intl for about $54.

  • Where are the least popular layover locations for San Diego to Washington, D.C. flights?

    The least popular layover on flights from San Diego to Washington, D.C. is Chicago.

  • 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 November is currently the most expensive (average of $172). 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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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
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Owings Mills
Linthicum Heights
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf
Bowie

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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.
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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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$128Average$264FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$145Average$275FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$158Average$351FlexibilityNo cancel feeOn-time85%
DeltaCheapest$168Average$396FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$232Average$451FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$237Average$365FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$237Average$423FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$256Average$459FlexibilityNo cancel feeOn-time71%

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