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Reagan-National

$142+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DCA
Mar 19 — Mar 261
Thu 3/19
Thu 3/26
1 adult, Economy
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Cheapflights Tip: The best prices from San Diego to Washington, D.C. Reagan-National are usually found in January or August, booked 48 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap 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 February 17, 2026.

This Orbitz deal was found by Cheapflights users on 2/13. 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 5/127:15 am
SAN
-
DCA
1 stop6h 44m
Multiple Airlines
Tue 5/198:59 am
DCA
-
SAN
Nonstop5h 43m
Multiple Airlines
Deal found 2/13$231
This Trip.com deal was found by Cheapflights users on 2/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:25 am
SAN
-
DCA
1 stop7h 34m
Frontier
Sat 5/97:00 am
DCA
-
SAN
1 stop16h 04m
Frontier
Deal found 2/14$232
This Trip.com deal was found by Cheapflights users on 2/13. 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 Trip.com 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
Tue 3/178:00 am
DCA
-
SAN
1 stop16h 14m
Frontier
Deal found 2/13$233
This Frontier deal was found by Cheapflights users on 2/16. 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.
Fri 4/109:28 pm
SAN
-
DCA
1 stop11h 34m
Frontier
Mon 4/131:00 pm
DCA
-
SAN
1 stop10h 26m
Frontier
Deal found 2/16$234
This Expedia deal was found by Cheapflights users on 2/14. 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.
Wed 4/157:15 am
SAN
-
DCA
1 stop6h 44m
Multiple Airlines
Tue 4/218:59 am
DCA
-
SAN
Nonstop5h 40m
Multiple Airlines
Deal found 2/14$236
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 3/69:18 pm
SAN
-
DCA
1 stop12h 44m
Frontier
Tue 3/108:00 am
DCA
-
SAN
2 stops32h 13m
Frontier
Deal found 2/13$239
This Frontier deal was found by Cheapflights users on 2/13. 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.
Wed 3/48:45 am
SAN
-
DCA
1 stop10h 14m
Frontier
Mon 3/96:00 pm
DCA
-
SAN
1 stop9h 08m
Frontier
Deal found 2/13$240
This Frontier deal was found by Cheapflights users on 2/17. 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.
Fri 4/246:25 am
SAN
-
DCA
1 stop12h 34m
Frontier
Mon 4/276:00 pm
DCA
-
SAN
1 stop9h 01m
Frontier
Deal found 2/17$244
This Expedia deal was found by Cheapflights users on 2/13. 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.
Wed 5/207:15 am
SAN
-
DCA
1 stop6h 44m
Multiple Airlines
Tue 5/261:25 pm
DCA
-
SAN
1 stop9h 43m
Multiple Airlines
Deal found 2/13$246

Find 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 February 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$231
(Orbitz)

One-way from

$142
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$328

Good round-trip deal

$277 or less

Good one-way deal

$158 or less
Provider with most accurate pricing for San Diego-Washington, D.C. Reagan-National flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Washington, D.C. Reagan-National flights.
Search Deals
From San Diego to Washington, D.C. Reagan-National
Search Deals
One-way flight from San Diego to Washington, D.C. Reagan-National
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($23 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. Reagan-National.
Search Deals
Price to beat on a one-way flight from San Diego to Washington, D.C. Reagan-National.
Search Deals

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 February 17, 2026.
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

Fri 3/13

10:40 pm-9:25 am

1 stop7h 45m

Washington, D.C. Reagan-National

Fri 3/20

6:00 am-1:00 pm

1 stop10h 00m

$252

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Sat 5/16

8:40 am-7:55 pm

2 stops8h 15m

Washington, D.C. Reagan-National

Mon 5/18

5:15 pm-10:55 pm

1 stop8h 40m

$257

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Tue 3/17

1:30 pm-11:15 pm

1 stop6h 45m

Washington, D.C. Reagan-National

Fri 3/20

6:00 am-1:00 pm

1 stop10h 00m

$257

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Tue 3/17

8:30 am-11:15 pm

2 stops11h 45m

Washington, D.C. Reagan-National

Mon 3/23

1:00 pm-8:40 pm

1 stop10h 40m

$261

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Mon 3/9

6:20 am-6:55 pm

1 stop9h 35m

Washington, D.C. Reagan-National

Tue 3/17

11:40 am-7:20 pm

2 stops10h 40m

$267

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Tue 3/10

10:50 am-11:15 pm

1 stop9h 25m

Washington, D.C. Reagan-National

Fri 3/13

6:55 am-2:45 pm

1 stop10h 50m

$267

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Mon 5/18

12:43 pm-9:00 pm

Nonstop5h 17m

Washington, D.C. Reagan-National

Wed 5/27

8:59 am-11:42 am

Nonstop5h 43m

$277

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Mon 5/18

10:15 pm-8:37 am

1 stop7h 22m

Washington, D.C. Reagan-National

Wed 5/27

6:10 am-10:08 am

1 stop6h 58m

$277

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Mon 5/18

12:43 pm-9:00 pm

Nonstop5h 17m

Washington, D.C. Reagan-National

Tue 5/26

8:59 am-11:42 am

Nonstop5h 43m

$277

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Tue 3/31

8:30 am-8:40 pm

1 stop9h 10m

Washington, D.C. Reagan-National

Sat 4/4

10:00 am-4:35 pm

1 stop9h 35m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

Showing 1-10 of 22 results
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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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy1 starTrust Score*2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >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 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. 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 February 13, 2026.

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 48 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 $234). 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 February 17, 2026.

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

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 February 17, 2026.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
11,891 reviews

Entertainment

7.0

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
11,891 reviews
Alaska Airlines
8.0
Very good
11,891 reviews

Entertainment

7.0

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
4,289 reviews
Alaska Airlines
8.0
Very good
11,891 reviews

Entertainment

7.0

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
Delta
7.9
Good
8,205 reviews
Alaska Airlines
8.0
Very good
11,891 reviews

Entertainment

7.0

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
2,833 reviews
Alaska Airlines
8.0
Very good
11,891 reviews

Entertainment

7.0

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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
3,047 reviews
Alaska Airlines
8.0
Very good
11,891 reviews

Entertainment

7.0

Boarding

8.1

Food

7.1

Overall

8.0

Comfort

7.8

Crew

8.5

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 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 $252, Southwest can have you in Washington, D.C. Reagan-National Airport from San Diego in 7h 45m. The distance from San Diego to Washington, D.C. Reagan-National Airport is about 2270 mi.

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

    Frontier, at $138, 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 Delta and Hawaiian Airlines. You may be able to fly from San Diego to Washington, D.C. Reagan-National Airport for 60% less than the average price by searching for these airlines.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $82. Users have also found prices from $118 and $124 on Hawaiian Airlines and Southwest, respectively.

  • 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 $705, our data indicates the cheapest price to be $158. The most popular route (San Diego - Washington, D.C. Reagan-National), is priced around $182.

  • 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 $234). 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
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Laurel
Linthicum Heights
Rockville
Upper Marlboro
Manassas
Bowie
Largo
McLean
Clinton
Towson

Browse thousands of different options on Cheapflights for your next trip

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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.
Los Angeles to Reagan-National flights
Los Angeles to Dulles Intl flights
Los Angeles to Baltimore flights
San Francisco to Reagan-National flights
San Francisco to Dulles Intl flights
San Francisco to Baltimore flights
San Diego to Dulles Intl flights
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Ontario to Baltimore flights
Las Vegas to Dulles Intl flights
Sacramento to Dulles Intl flights
San Jose to Dulles Intl flights
Oakland to Dulles Intl flights
Las Vegas to Baltimore flights
San Diego to Baltimore flights
Oakland to Reagan-National flights
San Jose to Reagan-National flights
Las Vegas to Reagan-National flights
San Jose to Baltimore flights
Oakland to Baltimore flights
Santa Ana to Dulles Intl flights
Sacramento to Baltimore flights
Santa Ana to Reagan-National flights
Santa Ana to Baltimore flights
Sacramento to Reagan-National flights
Fresno to Dulles Intl flights
Burbank to Dulles Intl flights
Fresno to Reagan-National flights
Burbank to Reagan-National flights
Burbank to Baltimore flights
Reno to Dulles Intl flights
Long Beach to Dulles Intl flights
Palm Springs to Dulles Intl flights
Reno to Reagan-National flights
Reno to Baltimore flights
Fresno to Baltimore flights
Palm Springs to Baltimore flights
San Luis Obispo to Baltimore flights
San Luis Obispo to Dulles Intl flights
Santa Barbara to Dulles Intl flights
Medford to Dulles Intl flights
Bakersfield to Dulles Intl flights
Santa Barbara to Reagan-National flights
Monterey to Reagan-National flights
Monterey to Dulles Intl flights
Palm Springs to Reagan-National flights
Long Beach to Baltimore flights
Medford to Baltimore flights

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 February 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$267FlexibilityNo cancel feeOn-time62%
DeltaCheapest$168Average$370FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$169Average$340FlexibilityNo cancel feeOn-time85%
SouthwestCheapest$222Average$367FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$237Average$385FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$256Average$371FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$276Average$383FlexibilityNo cancel feeOn-time69%

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