$129+ Cheap flights from Reagan-National (DCA) to San Diego (SAN)
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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SAN
dic. 6 — dic. 131
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to San Diego are usually found in February or January, booked 75 days in advance, depart on a Friday or Wednesday and return on a Friday
Find flight deals from Reagan-National to San Diego
Cheapest flights from Reagan-National to San DiegoExplore the most affordable flight options available from Reagan-National to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 6, 2025.
Explore the most affordable flight options available from Reagan-National to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 6, 2025.
This Alaska Airlines deal was found by Cheapflights users on 11/6. 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. 12/66:59 pmDCA - SAN
1 stop16h 40mAlaska Airlines
mar. 12/1612:52 pmSAN - DCA
Nonstop5h 10mAlaska Airlines
Deal found 11/6![Alaska Airlines logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/168:00 amDCA - SAN
2 stops12h 53mFrontier
jue. 12/184:47 pmSAN - DCA
1 stop17h 14mFrontier
Deal found 11/5![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/46:00 pmDCA - SAN
1 stop8h 59mFrontier
dom. 12/72:02 pmSAN - DCA
2 stops20h 04mFrontier
Deal found 11/5![Frontier logo]()
$251
This CheapOair deal was found by Cheapflights users on 11/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/132:00 pmDCA - SAN
1 stop24h 17mFrontier
lun. 11/175:47 pmSAN - DCA
1 stop25h 12mFrontier
Deal found 11/5![Frontier logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/312:00 pmDCA - SAN
1 stop8h 15mFrontier
dom. 1/41:06 pmSAN - DCA
2 stops45h 00mFrontier
Deal found 11/5![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/22:00 pmDCA - SAN
1 stop11h 46mFrontier
vie. 12/58:10 pmSAN - DCA
2 stops17h 49mFrontier
Deal found 11/5![Frontier logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/36:00 pmDCA - SAN
2 stops22h 33mFrontier
mié. 12/106:34 amSAN - DCA
1 stop27h 32mFrontier
Deal found 11/4![Frontier logo]()
$256
This Alaska Airlines deal was found by Cheapflights users on 11/6. 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.
mié. 12/108:59 amDCA - SAN
Nonstop5h 54mAlaska Airlines
mié. 12/107:59 pmSAN - DCA
1 stop19h 00mAlaska Airlines
Deal found 11/6![Alaska Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 11/6. 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.
jue. 12/44:15 pmDCA - SAN
1 stop7h 50mSouthwest
mar. 12/910:30 amSAN - DCA
2 stops10h 25mSouthwest
Deal found 11/6![Southwest logo]()
$258
This CheapOair deal was found by Cheapflights users on 11/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/156:00 pmDCA - SAN
1 stop7h 25mFrontier
sáb. 11/226:36 amSAN - DCA
1 stop12h 23mFrontier
Deal found 11/5![Frontier logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/312:00 pmDCA - SAN
1 stop8h 15mFrontier
lun. 1/57:21 pmSAN - DCA
2 stops14h 45mFrontier
Deal found 11/5![Frontier logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/242:00 pmDCA - SAN
1 stop12h 59mFrontier
lun. 1/54:47 pmSAN - DCA
1 stop17h 19mFrontier
Deal found 11/6![Frontier logo]()
$265
Cheap flight deals from Reagan-National to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to San Diego (SAN). 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 noviembre 6, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $247 (Alaska Airlines) |
One-way from | $129 (Alaska Airlines) |
Popular in | April |
Cheapest in | February |
Average price | $362 |
Good round-trip deal | $277 or less |
Good one-way deal | $186 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Reagan-National to San Diego 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 noviembre 6, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to San Diego that are best for you.
Fly from
Reagan-National
Fly to
San Diego
Route
Depart
Return
Price
Washington, D.C.San Diego
DCA - SAN
DCASAN
Washington, D.C. Reagan-National
vie. 1/9
8:59 am-11:56 am
Nonstop5h 57m
San Diego
dom. 1/11
12:53 pm-9:00 pm
Nonstop5h 07m
$257
Washington, D.C.San Diego
DCA - SAN
DCASAN
Washington, D.C. Reagan-National
jue. 12/4
4:15 pm-9:05 pm
1 stop7h 50m
San Diego
mar. 12/9
10:30 am-11:55 pm
2 stops10h 25m
$258
Washington, D.C.San Diego
DCA - SAN
DCASAN
Washington, D.C. Reagan-National
vie. 11/28
7:25 am-2:05 pm
1 stop9h 40m
San Diego
mar. 12/2
12:40 pm-10:50 pm
1 stop7h 10m
$277
Washington, D.C.San Diego
DCA - SAN
DCASAN
Washington, D.C. Reagan-National
sáb. 12/13
6:55 am-6:00 pm
2 stops14h 05m
San Diego
jue. 1/1
7:00 am-8:05 pm
2 stops10h 05m
$287
Washington, D.C.San Diego
DCA - SAN
DCASAN
Washington, D.C. Reagan-National
vie. 2/13
1:10 pm-8:00 pm
2 stops9h 50m
San Diego
mié. 2/18
10:45 am-10:20 pm
2 stops8h 35m
$287
Washington, D.C.San Diego
DCA - SAN
DCASAN
Washington, D.C. Reagan-National
dom. 12/14
6:10 am-11:45 am
1 stop8h 35m
San Diego
dom. 12/28
7:00 pm-8:40 am
1 stop10h 40m
$302
Washington, D.C.San Diego
DCA - SAN
DCASAN
Washington, D.C. Reagan-National
lun. 1/26
11:00 am-6:40 pm
2 stops10h 40m
San Diego
jue. 1/29
6:50 am-6:20 pm
2 stops8h 30m
$307
Washington, D.C.San Diego
DCA - SAN
DCASAN
Washington, D.C. Reagan-National
vie. 1/16
6:00 am-12:50 pm
2 stops9h 50m
San Diego
mié. 1/21
11:40 am-11:20 pm
2 stops8h 40m
$317
Washington, D.C.San Diego
DCA - SAN
DCASAN
Washington, D.C. Reagan-National
sáb. 3/28
3:35 pm-8:25 pm
1 stop7h 50m
San Diego
mié. 4/1
6:35 am-6:15 pm
1 stop8h 40m
$347
Washington, D.C.San Diego
DCA - SAN
DCASAN
Washington, D.C. Reagan-National
mié. 12/10
8:59 am-11:53 am
Nonstop5h 54m
$129
Showing 1-10 of 17 results
Compare providers for flights from Reagan-National to San Diego
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to San Diego in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-San Diego flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Washington, D.C. Reagan-National Airport-San Diego flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-San Diego flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Reagan-National to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Reagan-National 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 Washington, D.C. Reagan-National Airport to San Diego
Prices
Airlines
More
How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to San Diego?
Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to San Diego. Price data was last updated on October 31, 2025.
The best time to book flights from Washington, D.C. Reagan-National Airport to San Diego is 75 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to San Diego?
Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Diego (average of $130). Flying from Washington, D.C. Reagan-National Airport to San Diego in July is currently the most expensive (average of $222). 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 DCA to SAN?
Find hourly flight availability from Reagan-National to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 6, 2025.
A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Reagan-National Airport to San Diego at noon. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight in the morning.
What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to San Diego?
Use this chart to determine the cheapest time to fly round-trip from Reagan-National to San Diego. Price data was last updated on November 2, 2025.
Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to San Diego flight should consider departing on Sunday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
What’s the top layover airport for flights from Washington, D.C. Reagan-National Airport to San Diego?
Share of 1-stop round-trip flights from Washington, D.C. Reagan-National Airport to San Diego chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 93% of 1-stop itineraries from Washington, D.C. Reagan-National Airport to San Diego on Cheapflights.
What’s the fastest layover option from Washington, D.C. Reagan-National Airport to San Diego?
Shortest average travel time for 1-stop one-way flights from Washington, D.C. Reagan-National Airport to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 7h 58m.
What’s the fastest layover option from Washington, D.C. Reagan-National Airport to San Diego?
Shortest average travel time for 1-stop one-way flights from Washington, D.C. Reagan-National Airport to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 7h 58m.
Which airport typically offers the quickest layover for flights from Washington, D.C. Reagan-National Airport to San Diego?
Average layover duration for 1-stop one-way flights from Washington, D.C. Reagan-National Airport to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 0h 51m.
Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated noviembre 6, 2025.
See what other customers who have flown with Alaska Airlines, Hawaiian Airlines, and United Airlines from Washington, D.C. Reagan-National Airport to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Food
7.1
Overall
8.0
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
6.0
GoodHannah,Aug 2025
SFO - SAN
Crew
8.5
Food
7.1
Overall
8.0
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
6.0
GoodHannah,Aug 2025
SFO - SAN
Crew
8.5
Food
7.1
Overall
8.0
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
6.0
GoodHannah,Aug 2025
SFO - SAN
Crew
8.5
Food
7.1
Overall
8.0
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
6.0
GoodHannah,Aug 2025
SFO - SAN
Crew
8.5
Food
7.1
Overall
8.0
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
6.0
GoodHannah,Aug 2025
SFO - SAN
Crew
8.5
Food
7.1
Overall
8.0
Boarding
8.1
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
6.0
GoodHannah,Aug 2025
SFO - SAN
Related info for your journey
Find useful and relevant information for your journey from Reagan-National to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
National City
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Alternative routes for Reagan-National to San Diego
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from Reagan-National to San Diego
Discover the top 7 airlines that operate flights from Reagan-National to San Diego. 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 noviembre 6, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$149 | Average$277 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$222 | Average$487 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$237 | Average$376 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$247 | Average$377 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$254 | Average$361 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$257 | Average$424 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$444 | FlexibilityNo cancel fee | On-timeN/A |