Reagan-National

$139+ Cheap flights from San Diego (SAN) to Reagan-National (DCA)

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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DCA
Dec 6 — Dec 131
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Diego to Washington, D.C. Reagan-National are usually found in August or September, booked 87 days in advance, depart on a Friday or Thursday and return on a Friday

Find flight deals from San Diego to Reagan-National

Cheapest flights from San Diego to Reagan-National
Explore the most affordable flight options available from San Diego to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Frontier deal was found by Cheapflights users on 11/6. 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 11/206:49 amSAN - DCA
1 stop7h 08mFrontier
Thu 11/276:00 pmDCA - SAN
1 stop8h 59mFrontier
Deal found 11/6$233
This American Airlines deal was found by Cheapflights users on 11/6. 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.
Tue 12/27:30 pmSAN - DCA
1 stop8h 30mAmerican Airlines
Sat 12/610:35 amDCA - SAN
1 stop8h 13mAmerican Airlines
Deal found 11/6$236
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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.
Tue 12/231:14 pmSAN - DCA
Nonstop5h 05mAlaska Airlines
Mon 1/58:59 amDCA - SAN
Nonstop5h 52mAlaska Airlines
Deal found 11/5$237
This Southwest deal was found by Cheapflights users on 11/5. 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.
Wed 12/107:35 amSAN - DCA
1 stop6h 40mSouthwest
Sat 12/136:55 amDCA - SAN
2 stops14h 05mSouthwest
Deal found 11/5$238
This Expedia deal was found by Cheapflights users on 11/6. 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.
Tue 12/212:52 pmSAN - DCA
Nonstop5h 10mMultiple Airlines
Sat 12/136:00 pmDCA - SAN
1 stop8h 59mMultiple Airlines
Deal found 11/6$239
This Southwest deal was found by Cheapflights users on 11/5. 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 12/26:30 amSAN - DCA
1 stop8h 45mSouthwest
Wed 12/1011:40 amDCA - SAN
2 stops10h 00mSouthwest
Deal found 11/5$242
This CheapOair deal was found by Cheapflights users on 11/6. 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 stop12h 25mFrontier
Sun 1/42:00 pmDCA - SAN
1 stop8h 15mFrontier
Deal found 11/6$243
This Orbitz deal was found by Cheapflights users on 11/6. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:52 pmSAN - DCA
Nonstop5h 10mMultiple Airlines
Sat 12/68:00 amDCA - SAN
1 stop10h 52mMultiple Airlines
Deal found 11/6$244
This Expedia deal was found by Cheapflights users on 11/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/206:49 amSAN - DCA
1 stop12h 10mFrontier
Sun 11/232:00 pmDCA - SAN
1 stop12h 59mFrontier
Deal found 11/5$245
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Sun 11/233:49 pmSAN - DCA
2 stops18h 14mFrontier
Wed 12/36:00 pmDCA - SAN
1 stop28h 15mFrontier
Deal found 11/4$246
This Alaska Airlines deal was found by Cheapflights users on 11/5. 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.
Tue 12/96:15 amSAN - DCA
1 stop8h 44mAlaska Airlines
Sat 12/138:59 amDCA - SAN
Nonstop5h 54mAlaska Airlines
Deal found 11/5$247
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 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
Sun 1/46:00 pmDCA - SAN
1 stop8h 59mFrontier
Deal found 11/5$249

Cheap flight deals from San Diego to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Reagan-National (DCA). 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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$233
(Frontier)

One-way from

$139
(Southwest)

Popular in

December

Cheapest in

August

Average price

$385

Good round-trip deal

$297 or less

Good one-way deal

$178 or less
Provider with most accurate pricing for San Diego-Washington, D.C. Reagan-National flight deals.
Provider most trusted by Cheapflights users for San Diego-Washington, D.C. Reagan-National flights.
From San Diego to Washington, D.C. Reagan-National
One-way flight from San Diego to Washington, D.C. Reagan-National
Highest demand for flights based on searches. 9% potential increase in price ($35 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in November 2025
Price to beat on a round-trip flight from San Diego to Washington, D.C. Reagan-National.
Price to beat on a one-way flight from San Diego to Washington, D.C. Reagan-National.

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Reagan-National 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 November 6, 2025.
Use the filters below to find and compare flights from San Diego to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

San Diego

Fly to

Reagan-National

Route

Depart

Return

Price

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Tue 12/23

1:14 pm-9:19 pm

Nonstop5h 05m

Washington, D.C. Reagan-National

Thu 1/1

8:59 am-11:51 am

Nonstop5h 52m

$237

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 12/3

8:59 pm-5:59 pm

1 stop18h 00m

Washington, D.C. Reagan-National

Tue 12/16

8:59 am-11:53 am

Nonstop5h 54m

$257

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Thu 12/25

1:14 pm-9:19 pm

Nonstop5h 05m

Washington, D.C. Reagan-National

Thu 1/1

8:59 am-11:51 am

Nonstop5h 52m

$257

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Tue 12/9

12:52 pm-9:02 pm

Nonstop5h 10m

Washington, D.C. Reagan-National

Fri 12/12

8:59 am-11:53 am

Nonstop5h 54m

$277

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Fri 12/5

12:52 pm-9:02 pm

Nonstop5h 10m

Washington, D.C. Reagan-National

Sun 12/7

8:00 am-3:06 pm

1 stop10h 06m

$282

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Fri 12/12

6:30 pm-4:08 pm

1 stop18h 38m

Washington, D.C. Reagan-National

Mon 12/15

8:59 am-11:53 am

Nonstop5h 54m

$282

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Tue 12/23

9:24 pm-9:59 pm

1 stop21h 35m

Washington, D.C. Reagan-National

Fri 1/2

8:59 am-11:51 am

Nonstop5h 52m

$302

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Tue 12/23

9:24 pm-9:59 pm

1 stop21h 35m

Washington, D.C. Reagan-National

Sat 1/3

8:59 am-11:51 am

Nonstop5h 52m

$322

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Mon 12/22

1:14 pm-9:19 pm

Nonstop5h 05m

Washington, D.C. Reagan-National

Sat 1/10

8:59 am-11:56 am

Nonstop5h 57m

$328

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Mon 12/29

1:14 pm-9:19 pm

Nonstop5h 05m

Washington, D.C. Reagan-National

Mon 1/5

8:59 am-11:51 am

Nonstop5h 52m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 21 results
1
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Compare providers for flights from San Diego to Reagan-National

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 Reagan-National in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust 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. Reagan-National Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Diego-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Diego-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Washington, D.C. Reagan-National Airport flights, Cheapflights users trust eDreams the most. eDreams 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. Reagan-National Airport 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 Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National 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. Reagan-National Airport

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

Use this chart to determine the optimal time to book a round-trip flight from San Diego to Reagan-National. Price data was last updated on October 31, 2025.

The price you pay for your flight from San Diego to Washington, D.C. Reagan-National Airport may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, June is the cheapest month in which you can book a flight from San Diego to Washington, D.C. Reagan-National Airport (average of $99). Flying from San Diego to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of $233). 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 DCA?

Find hourly flight availability from San Diego to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 51% on flights from San Diego to Washington, D.C. Reagan-National Airport by exploring options for tickets in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from San Diego to Reagan-National. Price data was last updated on November 2, 2025.

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

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

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated November 6, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian Airlines from San Diego to Washington, D.C. Reagan-National Airport. 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.

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

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.

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

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.

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

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.

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

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.

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

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.

Crew

8.5

Food

7.1

Entertainment

7.0

Boarding

8.1

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 Reagan-National. 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. Reagan-National?

    If you book a flight to Washington, D.C. Reagan-National from San Diego, you will be flying from San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego. There are 2 flights from San Diego to Washington, D.C. Reagan-National per day from 7 different airlines.

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

    For as low as $237, Alaska Airlines can have you in Washington, D.C. Reagan-National Airport from San Diego in 5h 05m. The distance from San Diego to Washington, D.C. Reagan-National Airport is about 2270 mi. Most flights are nonstop.

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

    Frontier, at $150, was found to be the cheapest airline from San Diego to Washington, D.C. Reagan-National Airport.Alternate airlines to your destination round-trip include Southwest and Alaska Airlines. You may be able to fly from San Diego to Washington, D.C. Reagan-National Airport for 58% less than the average price by searching for these airlines.

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

    Looking for the cheapest flight from San Diego to Washington, D.C. Reagan-National Airport? While on average our users pay $310, our data indicates the cheapest price to be $157. The most popular route (San Diego - Washington, D.C. Reagan-National), is priced around $130.

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

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

    If you're on a layover in Denver and looking for things to do, consider visiting Coors Field, 16th Street Mall, or Paramount Theatre. Coors Field, 16th Street Mall, and Paramount Theatre can be visited by traveling about 18.4 mi, 18.7 mi, and 18.6 mi respectively from Denver Intl. Travelers in need of a car in Denver can rent one for about $50 per day.

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

  • Can I find deals for flights from San Diego to Reagan-National that include hotel bookings?

    Yes. In addition to deals on San Diego to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Reagan-National?

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

  • Can I find deals for business class flights from San Diego to Reagan-National?

    Yes. Cheapflights offers flight deals from San Diego to Reagan-National 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. Reagan-National Airport?

    Currently, June is the cheapest month in which you can book a flight from San Diego to Washington, D.C. Reagan-National Airport (average of $99). Flying from San Diego to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of $233). 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. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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Alternative routes for San Diego to Reagan-National

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

Top 7 airlines flying from San Diego to Reagan-National

Discover the top 7 airlines that operate flights from San Diego to Reagan-National. 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$150Average$282FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$232Average$425FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$243Average$414FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$256Average$379FlexibilityNo cancel feeOn-time71%
Hawaiian AirlinesCheapest$257Average$346FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$271Average$397FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$386FlexibilityNo cancel feeOn-timeN/A

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