Reagan-National

$125+ 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 7/17. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DCA
jul. 8 — jul. 151
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Cheapflights Tip: The best prices from San Diego to Washington, D.C. Reagan-National are usually found in October or September, booked 87 days in advance, depart on a Tuesday or Friday and return on a Friday

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 julio 3, 2025.

Round-trip from

$236
(Priceline)

One-way from

$125
(Priceline)

Popular in

June

Cheapest in

October

Average price

$408

Good round-trip deal

$317 or less

Good one-way deal

$159 or less
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. 6% potential increase in price ($25 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in July 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.

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 julio 3, 2025.

This Priceline deal was found by Cheapflights users on 7/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/226:35 amSAN - DCA
1 stop7h 39mFrontier
vie. 9/266:00 pmDCA - SAN
1 stop8h 53mFrontier
Deal found 7/1$236
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/61:41 pmSAN - DCA
Nonstop5h 18mAlaska Airlines
sáb. 9/139:59 amDCA - SAN
Nonstop5h 21mAlaska Airlines
Deal found 7/3$237
This SmartFares deal was found by Cheapflights users on 7/2. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/1612:42 pmSAN - DCA
Nonstop5h 17mHawaiian Airlines
sáb. 8/239:59 amDCA - SAN
Nonstop5h 21mHawaiian Airlines
Deal found 7/2$242
This Trip.com deal was found by Cheapflights users on 7/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/2312:12 pmSAN - DCA
1 stop6h 47mMultiple Airlines
sáb. 8/309:59 amDCA - SAN
Nonstop5h 21mMultiple Airlines
Deal found 7/2$246
This Southwest deal was found by Cheapflights users on 7/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/2310:50 amSAN - DCA
1 stop7h 05mSouthwest
sáb. 8/306:05 amDCA - SAN
1 stop8h 45mSouthwest
Deal found 7/2$257
This JetBlue deal was found by Cheapflights users on 7/3. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/228:15 pmSAN - DCA
1 stop8h 54mJetBlue
vie. 11/712:35 pmDCA - SAN
1 stop9h 46mJetBlue
Deal found 7/3$267
This United Airlines deal was found by Cheapflights users on 7/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/59:40 pmSAN - DCA
1 stop7h 42mUnited Airlines
mar. 8/127:00 amDCA - SAN
1 stop8h 48mUnited Airlines
Deal found 7/2$272
This Delta deal was found by Cheapflights users on 7/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/810:10 pmSAN - DCA
1 stop9h 12mDelta
lun. 10/135:15 pmDCA - SAN
1 stop7h 36mDelta
Deal found 7/3$287

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 julio 3, 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

lun. 9/22

10:20 am-9:59 pm

1 stop8h 39m

Washington, D.C. Reagan-National

vie. 9/26

7:00 am-11:09 am

1 stop7h 09m

$236

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

sáb. 9/6

1:41 pm-9:59 pm

Nonstop5h 18m

Washington, D.C. Reagan-National

sáb. 9/13

9:59 am-12:20 pm

Nonstop5h 21m

$237

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

sáb. 8/16

12:42 pm-8:59 pm

Nonstop5h 17m

Washington, D.C. Reagan-National

sáb. 8/23

9:59 am-12:20 pm

Nonstop5h 21m

$242

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

sáb. 8/23

12:12 pm-9:59 pm

1 stop6h 47m

Washington, D.C. Reagan-National

sáb. 8/30

9:59 am-12:20 pm

Nonstop5h 21m

$246

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

sáb. 8/23

10:50 am-8:55 pm

1 stop7h 05m

Washington, D.C. Reagan-National

sáb. 8/30

6:05 am-11:50 am

1 stop8h 45m

$257

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

mar. 8/5

9:40 pm-8:22 am

1 stop7h 42m

Washington, D.C. Reagan-National

mar. 8/12

7:00 am-12:48 pm

1 stop8h 48m

$272

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

mié. 7/23

10:30 pm-9:09 am

1 stop7h 39m

Washington, D.C. Reagan-National

vie. 7/25

6:05 am-10:03 am

1 stop6h 58m

$297

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

jue. 7/17

10:52 am-9:57 pm

1 stop8h 05m

$125

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

mar. 8/26

9:30 am-9:44 pm

1 stop9h 14m

$128

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

mar. 8/12

10:55 am-11:00 pm

1 stop9h 05m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 14 results
1
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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 June 27, 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, February is the cheapest month in which you can book a flight from San Diego to Washington, D.C. Reagan-National Airport (average of $278). Flying from San Diego to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). 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 julio 3, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 52% 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 June 29, 2025.

Travelers seeking maximum savings on their San Diego to Washington, D.C. Reagan-National Airport flight should consider departing on Tuesday mornings 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.

Weekly flight availability from San Diego to Washington, D.C. Reagan-National Airport

Explore weekly flight availability from San Diego to Reagan-National. 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 julio 3, 2025.

The most flights from SAN to DCA are scheduled on a Wednesday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

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 julio 3, 2025.
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.

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    Frontier, at $236, 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 Alaska Airlines and Hawaiian Airlines. You may be able to fly from San Diego to Washington, D.C. Reagan-National Airport for 36% 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 $125. Users have also found prices from $128 and $129 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 $488, our data indicates the cheapest price to be $128. The most popular route (San Diego - Washington, D.C. Reagan-National), is priced around $217.

  • 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, Paramount Theatre, or Larimer Square. Coors Field, Paramount Theatre, and Larimer Square can be visited by traveling about 18.4 mi, 18.6 mi, and 18.9 mi respectively from Denver Intl. Travelers in need of a car in Denver can rent one for about $56 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, February is the cheapest month in which you can book a flight from San Diego to Washington, D.C. Reagan-National Airport (average of $278). Flying from San Diego to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). 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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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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$147Average$252FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$219Average$356FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$237Average$408FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$257Average$412FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$276Average$505FlexibilityNo cancel feeOn-time63%
DeltaCheapest$276Average$379FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$276Average$384FlexibilityNo cancel feeOn-time71%

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