SAN - DCA

$129 Find Cheap Flights from San Diego to Reagan Washington National Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Reagan-National departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Reagan-National Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Washington, D.C..
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Washington, D.C..
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$253
Typical prices: $257-$396
Multiple Airlines
Sun 2/1Tue 2/3
SAN - DCA • Non-stop
Cheapest non-stop
$257
Typical prices: $293-$397
Alaska Airlines
Thu 1/15Thu 1/22
SAN - DCA • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Security lines at SAN are generally manageable.
DCA is easily accessible via the metro line.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Alaska Airlines
Cheapest • from $257 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 12% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Reagan-National!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from San Diego to Reagan-National (SAN-DCA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Reagan-National that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Reagan-National

Sun, Feb 1 - Tue, Feb 3
Multiple Airlines Logo
12:53 pm - 9:00 pm
SAN
-
DCA
5h 07mnonstop
Multiple Airlines Logo
6:00 pm - 11:31 pm
DCA
-
SAN
8h 31m1 stop
$253Multiple Airlines
Mon, Jan 5 - Thu, Jan 15
Frontier Logo
6:25 am - 9:59 pm
SAN
-
DCA
12h 34m1 stop
Frontier Logo
2:00 pm - 12:15 am
DCA
-
SAN
13h 15m1 stop
$254Frontier
Fri, Feb 6 - Tue, Feb 17
Multiple Airlines Logo
6:30 am - 4:59 pm
SAN
-
DCA
7h 29m1 stop
Multiple Airlines Logo
8:59 am - 11:43 am
DCA
-
SAN
5h 44mnonstop
$255Multiple Airlines
Fri, Jan 23 - Mon, Jan 26
Frontier Logo
6:30 am - 4:59 pm
SAN
-
DCA
7h 29m1 stop
Frontier Logo
8:00 am - 9:06 pm
DCA
-
SAN
16h 06m2 stops
$256Frontier
Thu, Jan 15 - Thu, Jan 22
Alaska Airlines Logo
12:53 pm - 9:00 pm
SAN
-
DCA
5h 07mnonstop
Alaska Airlines Logo
8:59 am - 11:56 am
DCA
-
SAN
5h 57mnonstop
$257Alaska Airlines
Wed, Jan 7 - Mon, Jan 12
Southwest Logo
10:45 am - 10:20 pm
SAN
-
DCA
8h 35m2 stops
Southwest Logo
4:50 pm - 9:35 pm
DCA
-
SAN
7h 45m1 stop
$258Southwest
Tue, Jan 6 - Sun, Jan 18
Frontier Logo
7:00 am - 9:59 pm
SAN
-
DCA
11h 59m1 stop
Frontier Logo
6:00 pm - 12:15 am
DCA
-
SAN
9h 15m1 stop
$259Frontier
Sun, Feb 22 - Thu, Feb 26
Frontier Logo
9:09 am - 9:59 pm
SAN
-
DCA
9h 50m1 stop
Frontier Logo
1:00 pm - 12:08 am
DCA
-
SAN
14h 08m1 stop
$261Frontier
Wed, Feb 18 - Tue, Feb 24
Alaska Airlines Logo
12:45 pm - 9:02 pm
SAN
-
DCA
5h 17mnonstop
Alaska Airlines Logo
8:00 am - 3:46 pm
DCA
-
SAN
10h 46m1 stop
$262Alaska Airlines
Thu, Mar 5 - Sun, Mar 8
Multiple Airlines Logo
11:59 am - 9:59 pm
SAN
-
DCA
7h 00m1 stop
Multiple Airlines Logo
8:59 am - 11:43 am
DCA
-
SAN
5h 44mnonstop
$264Multiple Airlines
Booking Insights

KAYAK's insights & trends for San Diego to Reagan-National flights

Get data-powered insights and trends into flights from San Diego to Reagan-National to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from San Diego to Washington, D.C. Reagan-National Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Diego to Washington, D.C. Reagan-National Airport departing in February.

What’s the cheapest day of the week to fly from San Diego to Reagan Washington National Airport?

The average price of all round-trip flights from San Diego to Washington, D.C. Reagan-National Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Reagan Washington National Airport on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from San Diego to Reagan Washington National Airport. For your return ticket, we recommend flying on a Friday and avoiding Mondays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Washington, D.C. Reagan-National Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Washington, D.C. Reagan-National Airport is August, where tickets cost $311 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $398 and $394 respectively.

Can I save money by flying with a layover from San Diego to Washington, D.C. Reagan-National Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $337 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to Washington, D.C. Reagan-National Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Diego to Washington, D.C. Reagan-National Airport, you should book around 4 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Expert advice

Expert advice for your flight from San Diego to Reagan-National

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
SAN

Security lines at SAN are generally manageable, even at peak times. Expect waits of 30–35 minutes, often less during off-peak hours.

DCA

DCA is easily accessible via the metro line, connecting you to the city in under 30 minutes, avoiding traffic hassles.

Our travel experts
Brandon Schultz

Brandon Schultz

Expert on SAN

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on DCA

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

Good to know

Low seasonAugust
Cheapest flight$129
Best time to beat the crowds with an average 13% drop in price.
Flight from San Diego to Reagan Washington National Airport

When to book flights from San Diego to Reagan-National

Are your dates flexible? Find out the best times to travel from San Diego to Reagan-National based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Diego to Reagan Washington National Airport flights

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

    In the last 3 days, the lowest price for a flight from San Diego to Washington, D.C. Reagan-National Airport was $129 for a one-way ticket and $253 for a round-trip.

  • Do I need a passport to fly between San Diego and Reagan Washington National Airport?

    No

  • Which airlines offer Wi-Fi service onboard planes from San Diego to Reagan Washington National Airport?

    Alaska Airlines, and Hawaiian Airlines offer inflight Wi-Fi service on the San Diego to Reagan Washington National Airport flight route.

  • Which aircraft models fly most regularly from San Diego to Reagan Washington National Airport?

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the San Diego to Reagan Washington National Airport flight route.

  • Which airline alliances offer flights from San Diego to Reagan Washington National Airport?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between San Diego and Reagan Washington National Airport, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from San Diego to Reagan Washington National Airport?

    There are nonstop flights from San Diego to Reagan Washington National Airport on a daily basis.

  • Which is the best airline for flights from San Diego to Washington, D.C., Alaska Airlines or Southwest?

    The two airlines most popular with KAYAK users for flights from San Diego to Washington, D.C. are Alaska Airlines and Southwest. With an average price for the route of $399 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Southwest is also a great choice for the route, with an average price of $412 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from San Diego to Reagan Washington National Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Reagan Washington National Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Reagan Washington National Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reagan Washington National Airport from San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Reagan Washington National Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Reagan Washington National Airport with an airline and back to San Diego with another airline. Booking your flights between San Diego and DCA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Reagan Washington National Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Reagan Washington National Airport from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Diego to Washington, D.C. Reagan-National Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $239 or less one-way and $257 or less round-trip.

Prefer to fly direct from San Diego to Reagan Washington National Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Diego to Washington, D.C. Reagan-National.
Find which airlines fly direct from San Diego Airport to Washington, D.C. Reagan-National Airport, which days they fly and book direct flights.

Direct departures

San Diego to Washington, D.C. Reagan-National

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Direct returns

Washington, D.C. Reagan-National to San Diego

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Reviews of the top 5 airlines serving from San Diego to Reagan-National

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Reagan-National? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11478 reviews
7.8Comfort
8.1Boarding
8.5Crew
7.0Entertainment
7.1Food
Airline reviews

See previous. It was the flight from Honolulu to Kapalua that was cancelled.

8.0 ExcellentEvie, Dec 2025
SAN - HNL
Read more Alaska Airlines reviews

See previous. It was the flight from Honolulu to Kapalua that was cancelled.

I truly appreciated the kindness and attentiveness of the staff and flight attendants. They did their best to be prompt with departure times to San Diego and back to New York! Alaska Airlines ... you are awesome!!

Again Alaskan and Hawaiian need to consolidate check-in, allow seat reservations on both flights. I wound up in last row because I couldn’t reserve better seat.

I've never flied them before but liked them. Weather was bad so a little scarey but they did a great job landing.

I recently traveled with my service animal, and before boarding, a gate agent kindly arranged for me to have an empty seat next to me to give my dog more space. However, once on board, a male crew member spoke to me in a rude and loud tone, insisting my dog stay on the floor or my lap—even after I explained what the gate agent had approved. His tone and behavior were unprofessional and made me feel uncomfortable in front of other passengers. I understand and respect airline policies, but I would appreciate if this could be reviewed to ensure better awareness and sensitivity toward passengers traveling with service animals. Thank you for your understanding.

Check in online didn't accept my confirmation number so i could only check in with assistance at the airport and ended up with s creepy middle seat.

It was the most expensive Alaska Airlines ticket I’ve ever purchased. I had a middle seat with no legroom or space compared to any other middle seat I’ve hadThere was a silver box under the seat that took up 70% of my legroom on the most narrow 737 max the crew flat out would not help they would not help with bags they would not help with garbage there was no coffee,It was definitely not one of my better experiences on Alaska.

Sitting on the ground for 2 hours waiting for a gate wasn't fun.

It was a great experience, friendly staff and good snacks

Very mediocre, and disappointing for the price of the ticket

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

I received several emails about my 3:10 flight. When I showed up to the airport at 12:30 to check my bags I was told the flight was actually at 1 pm. They grudgingly rebooked me for a flight at 5:22 to Vegas to get a connecting to LAX. I did find the gate for my original 3:10 flight but they were booked. I proceeded to receive status updates and gate change information for the 3:10 flight, even though I was apparently never supposed to be on that flight

The food options were limited and very specific. Some type of entertainment option for a 4.5 hour flight would have been nice.

Flight was smooth and comfortable. We were able to check a bag at counter due to full flight and boarded with an earlier group. We were there very early and didn’t hear the gate change just noticed our flight was no longer displayed st the gate. There were two other flights with gate shuffles - may be unavoidable but not desirable. First time I had to print my own luggage tag and attach at arrival. Not a fan of that process.

I received an email from Kayak with confirmation number for Hawaiian and another for Alaska. I received emails from Kayak for both my outbound and return flight to say "time to check in." Despite trying each number (Hawaiian and Alaska), I could not check in for outbound or return. It was then confusing at the airport - I hda "no place to go" to figure out how to check in. All the kiosks are marked "scan bag,etc." I wandered around with no agent to talk to. That was a bit stressful. Either Kayak, or airline, needed better communication on what to expect and to do.

The Kayak confirmation number did not work for checking in the day before. I checked in at 8.30 using my ticket number. When I arrived at the airport, I was informed that the flight was overbooked, and since I had checked in late, I did not have a seat. The Next flight was not until ten PM. I called my wife, who had been taking care of our kids all weekend, and she was upset, calling me a liar and telling me to stay in SD. It turned my weekend getaway into a nightmare! I blame the Kayak website and will not book flights using your app in the future.

comfortable but the food is horrible. I have flown Hawaiian several times now and no matter what they say the food is its the same squashed bread with melted goop inside. Tastes fake and isnt what they represent, its quite nasty. What happend to real food? And there is NO entertainment!! so not sure why they are asking for a review on that.

Good and friendly staff. Nicely enjoyed the complimentary drink and snack.

I was very, very cold and a stranger loaned me her sweater next to me. I didn’t wanna buy a blanket just for a four hour trip when I did not need the pillow or the earphones. I don’t mind purchasing a blanket, but I only needed that not all of it accessories. Cold air pretty much blew the entire trip. Two people in front of me both bought the blanket packages. Maybe that’s the idea. The crew was exceptionally nice and passed through multiple times.. the restrooms were very clean and usually accessible.

3 hour wait on customer service after flight was cancelled. Was bumped to a flight where I wouldnt have gotten to my destination for another 2 days. Had to fully refund flight and book a new one the following morning. Paid twice the amount for the flight than I had originally booked. Very disappointed I was not offered any sort of discount or points for all of the frustration, in fact the airline profited twice as much off of me by cancelling my flight and and changing my entire trip.

I understand that both Hawaiian and Alaskan are in the process of merging but I could not get real-time flight info or access my boarding pass on either app

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Cramped seats. FAA should make airlines have more legroom, for even short people complain

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

It was nobody’s fault - but the plane came 4-hrs late and we were updated randomly in 20-30 mins increments which left us hostage to sit and wait expectantly. It was very long and got very late. Our plane didn’t land until nearly 1 am! Also the toilet wasn’t working. The hosts were nice enough but were clearly “about to pass out” as one told me. Lastly, there was no snack or even time for it. Just a bad experience overall.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

Not clean and was told I would get a great seat and it was not great at all

Flight got delayed for 5 hours no good explanation was offered ;(

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

The worst. We never made our connection and they did absolutely nothing to help us at the airport.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Everything you need to know for your flight from San Diego to Reagan-National

Information on your arrival and departure airports