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Cheap flights from San Diego to Washington, D.C. from $132

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Washington, D.C. departing on 4/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Frontier Logo
6:30 am - 9:59 pm
SAN
-
DCA
12h 29m1 stop
Frontier Logo
8:00 am - 9:06 pm
DCA
-
SAN
16h 06m2 stops
$242Frontier
Thu, Jan 22 - Mon, Jan 26
American Airlines Logo
1:32 pm - 11:50 pm
SAN
-
DCA
7h 18m1 stop
American Airlines Logo
3:21 pm - 8:20 pm
DCA
-
SAN
7h 59m1 stop
$243American Airlines
Fri, Mar 6 - Wed, Mar 11
Multiple Airlines Logo
12:45 pm - 9:02 pm
SAN
-
DCA
5h 17mnonstop
Multiple Airlines Logo
6:00 pm - 12:08 am
DCA
-
SAN
9h 08m1 stop
$244Multiple Airlines
Wed, Feb 25 - Sun, Mar 1
Multiple Airlines Logo
6:30 am - 4:59 pm
SAN
-
DCA
7h 29m1 stop
Multiple Airlines Logo
8:59 am - 11:56 am
DCA
-
SAN
5h 57mnonstop
$246Multiple Airlines
Thu, Feb 5 - Sun, Feb 8
Frontier Logo
6:30 am - 4:59 pm
SAN
-
DCA
7h 29m1 stop
Frontier Logo
2:00 pm - 7:21 pm
DCA
-
SAN
8h 21m1 stop
$247Frontier
Fri, Jan 23 - Sun, Jan 25
Multiple Airlines Logo
6:30 am - 4:59 pm
SAN
-
DCA
7h 29m1 stop
Multiple Airlines Logo
8:59 am - 11:56 am
DCA
-
SAN
5h 57mnonstop
$249Multiple Airlines
Thu, Jan 29 - Sun, Feb 1
Frontier Logo
8:35 am - 9:59 pm
SAN
-
DCA
10h 24m1 stop
Frontier Logo
6:00 pm - 12:08 am
DCA
-
SAN
9h 08m1 stop
$250Frontier
Fri, Feb 27 - Sun, Mar 1
Frontier Logo
11:49 am - 1:15 pm
SAN
-
DCA
22h 26m1 stop
Frontier Logo
8:00 am - 12:08 am
DCA
-
SAN
19h 08m1 stop
$251Frontier
Mon, Feb 9 - Thu, Feb 12
Southwest Logo
11:40 am - 9:00 pm
SAN
-
DCA
6h 20m1 stop
Southwest Logo
6:00 am - 12:50 pm
DCA
-
SAN
9h 50m2 stops
$252Southwest
Wed, Jan 28 - Sun, Feb 1
Multiple Airlines Logo
12:53 pm - 9:00 pm
SAN
-
DCA
5h 07mnonstop
Multiple Airlines Logo
2:00 pm - 7:34 pm
DCA
-
SAN
8h 34m1 stop
$253Multiple Airlines
Sun, Feb 1 - Wed, Feb 4

Frontier flights from San Diego to Washington, D.C. Reagan-National Airport

Our best Frontier deals on San Diego to Washington, D.C. Reagan-National Airport flight tickets
Frontier
Jan 22
SAN6:30 amSan Diego
12h 29m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
Jan 26
DCA8:00 amWashington, D.C. Reagan-National
16h 06m
2 stops
SAN9:06 pmSan Diego
$242
Find similar
Frontier
Jan 23
SAN6:30 amSan Diego
7h 29m
1 stop
DCA4:59 pmWashington, D.C. Reagan-National
Jan 25
DCA2:00 pmWashington, D.C. Reagan-National
8h 21m
1 stop
SAN7:21 pmSan Diego
$247
Find similar
Frontier
Feb 27
SAN8:35 amSan Diego
10h 24m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
Mar 1
DCA6:00 pmWashington, D.C. Reagan-National
9h 08m
1 stop
SAN12:08 amSan Diego
$250
Find similar

JetBlue flights from San Diego to Washington, D.C. Reagan-National Airport

Our best JetBlue deals on San Diego to Washington, D.C. Reagan-National Airport flight tickets
JetBlue
May 20
SAN8:30 pmSan Diego
11h 08m
1 stop
DCA10:38 amWashington, D.C. Reagan-National
May 26
DCA1:25 pmWashington, D.C. Reagan-National
9h 43m
1 stop
SAN8:08 pmSan Diego
$265
Find similar
JetBlue
May 22
SAN9:19 pmSan Diego
11h 18m
1 stop
DCA11:37 amWashington, D.C. Reagan-National
Jun 1
DCA12:25 pmWashington, D.C. Reagan-National
10h 43m
1 stop
SAN8:08 pmSan Diego
$292
Find similar
JetBlue
May 27
SAN9:19 pmSan Diego
8h 47m
1 stop
DCA9:06 amWashington, D.C. Reagan-National
Jun 1
DCA1:25 pmWashington, D.C. Reagan-National
9h 43m
1 stop
SAN8:08 pmSan Diego
$293
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to Washington, D.C. Reagan-National Airport 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, momondo users made 832,500 searches. Data last updated January 7, 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

Fly to

Route

Depart

Return

Price

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Thu 1/22

6:30 am-9:59 pm

1 stop12h 29m

Washington, D.C. Reagan-National

Mon 1/26

8:00 am-9:06 pm

2 stops16h 06m

$242

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Fri 3/6

1:32 pm-11:50 pm

1 stop7h 18m

Washington, D.C. Reagan-National

Wed 3/11

3:21 pm-8:20 pm

1 stop7h 59m

$243

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 2/25

12:45 pm-9:02 pm

Nonstop5h 17m

Washington, D.C. Reagan-National

Sun 3/1

6:00 pm-12:08 am

1 stop9h 08m

$244

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Thu 2/5

6:30 am-4:59 pm

1 stop7h 29m

Washington, D.C. Reagan-National

Sun 2/8

8:59 am-11:56 am

Nonstop5h 57m

$246

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Fri 1/23

6:30 am-4:59 pm

1 stop7h 29m

Washington, D.C. Reagan-National

Sun 1/25

2:00 pm-7:21 pm

1 stop8h 21m

$247

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Thu 1/29

6:30 am-4:59 pm

1 stop7h 29m

Washington, D.C. Reagan-National

Sun 2/1

8:59 am-11:56 am

Nonstop5h 57m

$249

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Fri 2/27

8:35 am-9:59 pm

1 stop10h 24m

Washington, D.C. Reagan-National

Sun 3/1

6:00 pm-12:08 am

1 stop9h 08m

$250

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Mon 2/9

11:49 am-1:15 pm

1 stop22h 26m

Washington, D.C. Reagan-National

Thu 2/12

8:00 am-12:08 am

1 stop19h 08m

$251

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 1/28

11:40 am-9:00 pm

1 stop6h 20m

Washington, D.C. Reagan-National

Sun 2/1

6:00 am-12:50 pm

2 stops9h 50m

$252

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Sun 2/1

12:53 pm-9:00 pm

Nonstop5h 07m

Washington, D.C. Reagan-National

Wed 2/4

2:00 pm-7:34 pm

1 stop8h 34m

$253

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from San Diego to Washington, D.C. Reagan-National Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

The month of January is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from San Diego, with most prices found around $305. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of January, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $311.

What is the cheapest day to depart on your flight to Washington, D.C. Reagan-National Airport?

The cheapest day to depart from San Diego to Washington, D.C. Reagan-National Airport is on a Thursday. Travelers who choose to depart for Washington, D.C. Reagan-National Airport on a Thursday will often find tickets for as low as $327. Flights from San Diego to Washington, D.C. Reagan-National Airport on a Sunday will generally be more expensive and average around $537. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Washington, D.C. Reagan-National Airport?

Our data shows that the cheapest San Diego to Washington, D.C. Reagan-National Airport flights are usually those with departure times at noon. Our users have found flights to Washington, D.C. Reagan-National Airport at noon for as low as $364. In contrast, the most expensive time of day to depart to Washington, D.C. Reagan-National Airport is in the morning when prices are around $372.

What is the cheapest San Diego to Washington, D.C. Reagan-National flight route?

Fly from San Diego to Washington, D.C. Reagan-National for the best San Diego - Washington, D.C. Reagan-National flight prices

How far in advance should I book a flight to Washington, D.C. Reagan-National Airport?

You are more likely to see cheaper flights to Washington, D.C. Reagan-National Airport from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Reagan-National Airport for around $349 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Reagan-National Airport from San Diego for as low as $308 on momondo.

What cabin class options are available on San Diego to Washington, D.C. Reagan-National flights?

There are 4 cabin classes available to choose from on San Diego to Washington, D.C. Reagan-National flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have San Diego to Washington, D.C. Reagan-National Airport flight prices changed over time?

As of January 2026, prices for San Diego to Washington, D.C. Reagan-National Airport flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from San Diego to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Washington, D.C. Reagan-National Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Diego to Washington, D.C. Reagan-National Airport (SAN to DCA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Washington, D.C. Reagan-National Airport

Best Price Found

$188

Fastest flight time

5h 07m

Direct flights

Every day
The best one-way flight to Washington, D.C. Reagan-National Airport from San Diego in the past 72 hours is $188. The best round-trip flight deal from San Diego to Washington, D.C. Reagan-National Airport found on momondo in the last 72 hours is $277.
The fastest flight from San Diego to Washington, D.C. Reagan-National Airport takes 5h 07m
Direct flights go from San Diego to Washington, D.C. Reagan-National Airport every day.
Search flight deals

  • How far is San Diego to Washington, D.C. Reagan-National by plane?

    The distance between San Diego and Washington, D.C. Reagan-National is about 2268.2 mi. Flights usually cover this in 5h 07m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from San Diego Airport to Washington, D.C. Reagan-National Airport?

    Prices for flights from San Diego Airport to Washington, D.C. Reagan-National Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from San Diego Airport to Washington, D.C. Reagan-National Airport?

  • How old do you have to be to fly from San Diego Airport to Washington, D.C. Reagan-National Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Washington, D.C. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

    The necessary travel and health documents for your Washington, D.C. Reagan-National Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from San Diego to Washington, D.C. Reagan-National Airport?

  • What is the most popular airline from San Diego to Washington, D.C. Reagan-National Airport?

Best airlines flying from San Diego to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from San Diego to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $150Free CancellationRating
5.7
3,063 reviews
Search Frontier flights
SouthwestPriceFrom $232Free CancellationRating
8.0
4,249 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $237Free CancellationRating
8.0
11,656 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.2
11,088 reviews
Search American Airlines flights
Hawaiian AirlinesPriceFrom $257Free CancellationRating
7.8
2,824 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $276Free CancellationRating
7.4
9,138 reviews
Search United Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
8,022 reviews
Search Delta flights

  • Southwest Flights From San Diego to Washington, D.C. Reagan-National Airport

    Southwest flight deals from San Diego to Washington, D.C. Reagan-National Airport start from $232 round-trip. Over the 10 Southwest flights for this route in a normal week, average airfare is usually $395 round-trip - but some users have found much cheaper deals with momondo.

  • Alaska Airlines Flights From San Diego to Washington, D.C. Reagan-National Airport

    $237 is the best Alaska Airlines flight deal from San Diego to Washington, D.C. Reagan-National Airport found on momondo over the last 72 hours. The average Alaska Airlines ticket price found was closer to $400, however, with flight time and availability significantly affecting the price. Alaska Airlines (8.0/10 from 11,658 user reviews) flies into Washington, D.C. Reagan-National Airport from San Diego 7 times in an average week so prices can vary.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Rockville
Gaithersburg
Manassas
Fairfax
Springfield
Glen Burnie
Linthicum Heights
Reston

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Washington, D.C.?

Finding the right flight to Washington, D.C. from San Diego is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from San Diego to Washington, D.C. with flexible booking policies on momondo?

Flights from San Diego to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Diego to Washington, D.C.?

Once all potential San Diego to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Diego to Washington, D.C. right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Diego to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Washington, D.C. Reagan-National Airport trip

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