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£96 Cheap Flights from San Diego (SAN) to Washington (DCA)

View £96 flight on Mon, 28 Sept 2026Opens in a new window

Popular airlines from San Diego Intl. Airport (SAN) to Ronald Reagan National Airport (DCA)

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Cheap Flights from San Diego (SAN) to Washington (DCA)

Prices were available within the past 7 days and start at £96 for one-way flights and £235 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Tue, 11 Aug - Tue, 18 Aug
SAN
San Diego
DCA
Washington
£235 Return, found 4 hours ago
£235
Return
found 4 hours ago
Select JetBlue Airways flight, departing Tue, 11 Aug from San Diego to Washington, returning Tue, 18 Aug, priced at £235 found 4 hours ago
JetBlue Airways
Thu, 13 Aug - Wed, 19 Aug
SAN
San Diego
DCA
Washington
£236 Return, found 3 days ago
£236
Return
found 3 days ago
Select JetBlue Airways flight, departing Thu, 13 Aug from San Diego to Washington, returning Wed, 19 Aug, priced at £236 found 3 days ago
Alaska Airlines
Sat, 26 Sept - Tue, 13 Oct
SAN
San Diego
DCA
Washington
£252 Return, found 1 day ago
£252
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 26 Sept from San Diego to Washington, returning Tue, 13 Oct, priced at £252 found 1 day ago
Alaska Airlines
Wed, 14 Oct - Wed, 21 Oct
SAN
San Diego
DCA
Washington
£253 Return, found 4 hours ago
£253
Return
found 4 hours ago
Select Alaska Airlines flight, departing Wed, 14 Oct from San Diego to Washington, returning Wed, 21 Oct, priced at £253 found 4 hours ago
JetBlue Airways
Tue, 13 Oct - Wed, 21 Oct
SAN
San Diego
DCA
Washington
£253 Return, found 1 day ago
£253
Return
found 1 day ago
Select JetBlue Airways flight, departing Tue, 13 Oct from San Diego to Washington, returning Wed, 21 Oct, priced at £253 found 1 day ago
JetBlue Airways
Mon, 17 Aug - Sat, 22 Aug
SAN
San Diego
DCA
Washington
£266 Return, found 4 hours ago
£266
Return
found 4 hours ago
Select JetBlue Airways flight, departing Mon, 17 Aug from San Diego to Washington, returning Sat, 22 Aug, priced at £266 found 4 hours ago
JetBlue Airways
Wed, 14 Oct - Wed, 21 Oct
SAN
San Diego
DCA
Washington
£271 Return, found 4 hours ago
£271
Return
found 4 hours ago
Select JetBlue Airways flight, departing Wed, 14 Oct from San Diego to Washington, returning Wed, 21 Oct, priced at £271 found 4 hours ago
JetBlue Airways
Mon, 10 Aug - Wed, 12 Aug
SAN
San Diego
DCA
Washington
£274 Return, found 1 day ago
£274
Return
found 1 day ago
Select JetBlue Airways flight, departing Mon, 10 Aug from San Diego to Washington, returning Wed, 12 Aug, priced at £274 found 1 day ago
Alaska Airlines
Mon, 17 Aug - Sat, 22 Aug
SAN
San Diego
DCA
Washington
£274 Return, found 4 hours ago
£274
Return
found 4 hours ago
Select Alaska Airlines flight, departing Mon, 17 Aug from San Diego to Washington, returning Sat, 22 Aug, priced at £274 found 4 hours ago
Alaska Airlines
Thu, 13 Aug - Wed, 19 Aug
SAN
San Diego
DCA
Washington
£275 Return, found 3 days ago
£275
Return
found 3 days ago
Select Alaska Airlines flight, departing Thu, 13 Aug from San Diego to Washington, returning Wed, 19 Aug, priced at £275 found 3 days ago

Frequently asked questions

How much does a flight from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) cost?
You can find one-way and return flights from SAN to DCA with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when SAN to DCA ticket fares go up or down.
What is the cheapest month to fly from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
February is typically the cheapest month to fly from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National), with average return fares around £235. February often sees lower prices as it falls outside peak holiday travel periods. Other cheap months to fly from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) include August and September.
Which airlines fly direct from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
Enter SAN to DCA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
Alaska Airlines is one of the cheapest airlines offering nonstop return flights from San Diego Intl. (SAN) to Ronald Reagan Washington National (DCA), with tickets starting from around £255 for flights that can be booked for departure within the next year. JetBlue Airways is one of the cheapest airlines offering connecting return flights on this route, with tickets starting from around £261. These prices are per adult, for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
To find a cheap flight from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
The best airline to fly with from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Alaska Airlines typically offers the lowest fares. Southwest Airlines offers the most daily flights from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
The cheapest months to fly from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) are typically February and September, with average return flights around £235. The most popular months for this route are May and January. While there isn't a month that is both cheapest and most popular, if you're looking for the best value, aiming for February or September could save you money, and you'll still find plenty of flight options available.
How many flights per day from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
There are approximately 106 connecting flights per day from San Diego Intl. (SAN) to Ronald Reagan Washington National (DCA). Some common connection points include O'Hare Intl. (ORD), Sky Harbor Intl. (PHX), and Hartsfield-Jackson Atlanta Intl. (ATL).
What is the earliest flight from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
The earliest flight from San Diego International (SAN) to Ronald Reagan Washington National (DCA) typically departs around 1:00 AM local time. This flight is operated by Alaska Airlines. This is a seasonal service, active only in October. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
You'll typically find the most flights from San Diego Intl. (SAN) to Ronald Reagan Washington National (DCA) on a Thursday, with around 80 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include American Airlines, Southwest Airlines, and United. Flight schedules are fairly consistent throughout the week, with Thursday having only slightly more flights than other days.
What are the most popular departure times for flights from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
The most popular departure times for flights from San Diego Intl. (SAN) to Ronald Reagan Washington National (DCA) are in the early morning, from 6am to 9am. Many major carriers, including American Airlines, Southwest Airlines and Delta, offer flights during this window. Many travellers prefer this because it allows for an early arrival at your destination, giving you more time to settle in or start your day.
How long does it take to fly from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
A non-stop flight from San Diego Intl. (SAN) to Ronald Reagan Washington National (DCA) typically takes around 5 hours 18 minutes. This route covers a distance of approximately 3,655 kilometers. If you opt for a flight with one stop, your journey will usually be longer, taking about 7 hours 30 minutes. Flights with two or more stops generally take around 10 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
You can fly business class or first class between SAN and DCA. You can fly business class with Frontier Airlines and Delta.First class cabins are available on Alaska Airlines, Delta, United, and American Airlines.
How do I earn miles on a San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight with Expedia?
It's easy to earn miles on a San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Washington, DC (DCA) from San Diego, CA (SAN)?
If you're planning to travel to Washington from San Diego Intl. (SAN), you can fly directly into Ronald Reagan Washington National (DCA). Some flights may connect through major hubs like Sky Harbor Intl. (PHX), Denver Intl. (DEN), or Harry Reid International Airport (LAS) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) at the last minute?
Typically, booking a last minute flight from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight and hotel package?
Securing a San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National)?
If you booked your San Diego, CA (SAN-San Diego Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Diego Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
Alaska Airlines, JetBlue Airways
Return price
£235
Distance
3633 km
Average flight time
9 hours 19 mins

Book with confidence

Compare flights from San Diego to Washington easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from San Diego to Washington. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Ronald Reagan Washington National in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from San Diego Intl. to Ronald Reagan Washington National.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from San Diego Intl. (SAN) to Ronald Reagan Washington National (DCA)

The easiest way to view the best deals on flights from San Diego to Washington today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from San Diego Intl. to Ronald Reagan Washington National start at just £235 and range up to £275.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near San Diego and Washington
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your San Diego to Washington flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from San Diego Intl. to Ronald Reagan Washington National for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from San Diego to Washington easily and book with confidence

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*Available to Expedia members.