SAN - DCA

$169 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 7/7. 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 21% 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
$345
Typical prices: $444-$270
Southwest
Mon 8/17Fri 8/21
SAN - DCA • 1 stop
Cheapest non-stop
$357
Typical prices: $418-$257
Alaska Airlines
Sat 8/22Tue 8/25
SAN - DCA • Non-stop
Top airlines
Cheapest • from $345 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Alaska Airlines. Average duration is 5h 18m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 74% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $303 (round-trip)
Shortest trip • 6h 28m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
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

Mon, Aug 17 - Fri, Aug 21
Southwest Logo
6:30 am - 4:25 pm
SAN
-
DCA
6h 55m
1 stop
Southwest Logo
12:15 pm - 6:55 pm
DCA
-
SAN
9h 40m
2 stops
$345Southwest
Wed, Jul 8 - Sat, Jul 11
Multiple Airlines Logo
8:40 pm - 10:10 am
SAN
-
DCA
10h 30m
1 stop
Multiple Airlines Logo
6:00 pm - 11:51 pm
DCA
-
SAN
8h 51m
1 stop
$346Multiple Airlines
Sat, Sep 12 - Tue, Sep 22
Alaska Airlines Logo
7:00 am - 5:59 pm
SAN
-
DCA
7h 59m
1 stop
Alaska Airlines Logo
10:59 am - 1:37 pm
DCA
-
SAN
5h 38mnonstop
$347Alaska Airlines
Tue, Jul 14 - Sun, Jul 26
Multiple Airlines Logo
8:40 pm - 10:10 am
SAN
-
DCA
10h 30m
1 stop
Multiple Airlines Logo
7:00 am - 9:05 am
DCA
-
SAN
29h 05m
1 stop
$349Multiple Airlines
Fri, Aug 28 - Mon, Aug 31
Southwest Logo
6:20 am - 6:10 pm
SAN
-
DCA
8h 50m
1 stop
Southwest Logo
3:15 pm - 9:20 pm
DCA
-
SAN
9h 05m
2 stops
$350Southwest
Tue, Jul 14 - Sun, Jul 26
Multiple Airlines Logo
8:40 pm - 10:10 am
SAN
-
DCA
10h 30m
1 stop
Multiple Airlines Logo
7:00 am - 9:05 am
DCA
-
SAN
29h 05m
1 stop
$351Multiple Airlines
Wed, Sep 23 - Sat, Sep 26
Southwest Logo
6:35 am - 8:55 pm
SAN
-
DCA
11h 20m
2 stops
Southwest Logo
10:40 am - 5:10 pm
DCA
-
SAN
9h 30m
2 stops
$352Southwest
Sun, Jul 12 - Wed, Jul 15
Multiple Airlines Logo
6:25 am - 12:51 pm
SAN
-
DCA
27h 26m
1 stop
Multiple Airlines Logo
11:00 am - 7:27 pm
DCA
-
SAN
11h 27m
1 stop
$353Multiple Airlines
Tue, Aug 4 - Tue, Aug 11
Multiple Airlines Logo
8:40 pm - 10:10 am
SAN
-
DCA
10h 30m
1 stop
Multiple Airlines Logo
8:59 am - 11:39 am
DCA
-
SAN
5h 40mnonstop
$354Multiple Airlines
Thu, Aug 6 - Sat, Aug 8
Multiple Airlines Logo
8:30 pm - 9:50 pm
SAN
-
DCA
22h 20m
2 stops
Multiple Airlines Logo
1:59 pm - 11:51 pm
DCA
-
SAN
12h 52m
1 stop
$356Multiple 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 August.

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 Friday, 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 Thursday and avoiding Sundays 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 January, where tickets cost $296 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $498 and $419 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 $484 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 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 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.
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on SAN

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.

Ramsey Qubein

Ramsey Qubein

Expert on DCA

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.

Good to know

Low seasonJanuary
Cheapest flight$169
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 4% increase 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 5 days, the lowest price for a flight from San Diego to Washington, D.C. Reagan-National Airport was $169 for a one-way ticket and $345 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, JetBlue, 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 $401 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Southwest is also a great choice for the route, with an average price of $373 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 $273 or less one-way and $437 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.
7.9
Alaska AirlinesOverall score based on 12508 reviews
7.0Entertainment
7.0Food
7.8Comfort
8.5Crew
8.1Boarding
Airline reviews

Short trip, was nice to have a drink on the short flight still.

10.0 ExcellentAnonymous, Jun 2026
SAN - MFR
Read more Alaska Airlines reviews

Short trip, was nice to have a drink on the short flight still.

A five hour nonstop flight traveling over a few time zones and over the dinner hour and you get a small bag of pretzels. And no screens to watch movies. I

Flight got delayed like 5 times, then they put and ada passenger in the back of the plane.

Flight delayed no communication. The gate was changed so many times.

Alaska is by far the best airline to fly with 😍

Agent could not provide me a boarding pass for the second leg of my flights - yet with a partner airline. Not understood.

More efficient with checking lines and boarding/checking bags when needed.

They were really helpful with every question and my kids had never been on a plane and the staff made them feel comfortable

I was on flight #3022 departed from San Diego, California to Medford, Oregon. I had Denise & Damaris as my flight attendants. I didn’t have much interaction with Damaris, but I did with Denise who had, this calm, cool collective voice when she spoke about the emergency exit plans before takeoff. I travel often and I’ve never met a flight attendant that can put you at ease. I felt she respects and takes pride in her position and more airlines need to adopt the integrity and respect that she has for Alaska Airlines. Debbie

All airlines should board planes back to front, instead of catering to higher priced tickets. The boarding groups are inefficient and delay takeoff time

Was fine, delayed and feels like southwest is always late

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Flight delayed four separate times. I’m now one hour hours late to landing.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

The flight was smooth, the crew was great but the plane was quite old

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

It was great. Smooth flight, comfortable, left on time and landed on time.

Horrible experience upon landing. Probably more due to DCA utter incompetence than AA.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Poor communication ahead of time about flight delays and old planes/other equipment.

Never going to fly your airline again if it can be avoided.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Other than nearly three hour delay for maintenance issues, everything went smooth

Snow delayed boarding several times, which I understand happens. Issue I had was that after we did board, pilot told us we were going to roll out to be de-iced, then on our way. We were de-iced once, taxied to the tarmac and then stopped. Sat for another 30 minutes or so, the another de-icing. Then we rolled out to a parking spot, only to sit for another hour due to a traffic stop in DCA, which I'm confident they knew would happen before we boarded. Pilot gave no updates other than we had to hold, attendants did speak to the crew, but when asked, said the pilot would be updating us. We on the ground in the plane waiting for over 2 hours. They did communicate that bathrooms would be open, but no other news until we left. Would have been better to be up front about status.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

They didn’t offer a water, even after I asked

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

The flight never took off and we spent 7 hours at the airport

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

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.

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

Information on your arrival and departure airports