$180+ Cheap flights from San Diego (SAN) to Reagan-National (DCA)
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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DCA
Sep 26 — Oct 31
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Diego to Reagan-National with Cheapflights
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 San Diego to Washington, D.C. Reagan-National are usually found in January or February, booked 63 days in advance, depart on a Saturday or Friday and return on a Thursday
Cheap flight deals from San Diego to Reagan-National
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Diego to Reagan-NationalExplore the most affordable flight options available from San Diego to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 27, 2026.
Explore the most affordable flight options available from San Diego to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 27, 2026.
This Expedia deal was found by Cheapflights users on 8/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:53 pm -
1 stop26h 06m
Mon 10/127:00 am -
1 stop19h 56m
Deal found 8/23![Frontier logo]()
$322
This Orbitz deal was found by Cheapflights users on 8/22. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:25 am -
1 stop26h 39m
Sun 10/117:00 am -
1 stop19h 56m
Deal found 8/22![Frontier logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Sat 9/126:25 am -
1 stop7h 34m
Wed 9/167:00 am -
1 stop11h 59m
Deal found 8/23![Frontier logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Thu 9/177:04 pm -
2 stops38h 07m
Tue 9/227:00 am -
1 stop11h 59m
Deal found 8/24![Frontier logo]()
$325
This Expedia deal was found by Cheapflights users on 8/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:27 pm -
1 stop10h 15m
Sat 10/36:00 pm -
1 stop8h 51m
Deal found 8/23![Multiple Airlines logo]()
$326
This Trip.com deal was found by Cheapflights users on 8/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:54 pm -
1 stop26h 05m
Sun 9/277:00 am -
1 stop19h 51m
Deal found 8/23![Frontier logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Fri 10/238:34 pm -
2 stops17h 22m
Mon 10/266:00 pm -
1 stop8h 56m
Deal found 8/26![Frontier logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Mon 9/147:04 pm -
2 stops18h 55m
Mon 9/217:00 am -
1 stop11h 58m
Deal found 8/25![Frontier logo]()
$331
This Southwest deal was found by Cheapflights users on 8/25. 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.
Fri 10/910:40 pm -
1 stop6h 55m
Tue 10/136:35 pm -
1 stop7h 40m
Deal found 8/25![Southwest logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Tue 9/226:25 am -
1 stop7h 34m
Wed 9/231:00 pm -
2 stops23h 43m
Deal found 8/26![Frontier logo]()
$333
Best flights from San Diego to Reagan-NationalDiscover carefully curated flight deals from San Diego to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 27, 2026.
Discover carefully curated flight deals from San Diego to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 27, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/26. 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.
Wed 11/1112:58 pm -
Nonstop5h 02m
Sat 11/1410:59 am -
Nonstop5h 48m
Deal found 8/26![Alaska Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 8/23. 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.
Thu 10/1511:20 am -
1 stop8h 35m
Sat 10/179:15 am -
2 stops10h 20m
Deal found 8/23![Southwest logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 8/26. 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.
Tue 11/1012:58 pm -
Nonstop5h 02m
Sat 11/1410:59 am -
Nonstop5h 48m
Deal found 8/26![Alaska Airlines logo]()
$347
This Southwest deal was found by Cheapflights users on 8/25. 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.
Wed 11/49:15 am -
2 stops9h 45m
Mon 11/91:35 pm -
2 stops9h 20m
Deal found 8/25![Southwest logo]()
$387
This Southwest deal was found by Cheapflights users on 8/25. 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.
Sun 11/110:35 pm -
2 stops9h 40m
Wed 11/412:05 pm -
2 stops9h 50m
Deal found 8/25![Southwest logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 8/22. 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.
Fri 10/3012:45 pm -
Nonstop5h 15m
Mon 11/26:59 pm -
1 stop16h 43m
Deal found 8/22![Alaska Airlines logo]()
$407
This Alaska Airlines deal was found by Cheapflights users on 8/22. 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.
Wed 11/1112:58 pm -
Nonstop5h 02m
Wed 11/188:00 am -
1 stop10h 50m
Deal found 8/22![Alaska Airlines logo]()
$420
This Southwest deal was found by Cheapflights users on 8/25. 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.
Fri 11/206:35 am -
1 stop7h 20m
Fri 11/278:00 am -
1 stop7h 40m
Deal found 8/25![Southwest logo]()
$427
This Alaska Airlines deal was found by Cheapflights users on 8/26. 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.
Wed 11/1112:58 pm -
Nonstop5h 02m
Fri 11/1310:59 am -
Nonstop5h 48m
Deal found 8/26![Alaska Airlines logo]()
$427
This Southwest deal was found by Cheapflights users on 8/22. 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.
Sat 9/126:55 am -
2 stops10h 55m
Sat 9/191:00 pm -
2 stops8h 10m
Deal found 8/22![Southwest logo]()
$467
This Alaska Airlines deal was found by Cheapflights users on 8/23. 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.
Wed 9/237:00 am -
1 stop7h 59m
Sat 9/2610:59 am -
Nonstop5h 38m
Deal found 8/23![Alaska Airlines logo]()
$432
This Alaska Airlines deal was found by Cheapflights users on 8/23. 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.
Wed 9/307:00 am -
1 stop7h 59m
Sun 10/410:59 am -
Nonstop5h 38m
Deal found 8/23![Alaska Airlines logo]()
$442
Last-minute flights from San Diego to Reagan-NationalDiscover last-minute flight deals from San Diego to Reagan-National. Data last updated August 27, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Reagan-National. Data last updated August 27, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 8/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:25 am -
1 stop7h 34m
Mon 9/146:00 pm -
1 stop8h 51m
Deal found 8/24![Frontier logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Sat 9/126:25 am -
1 stop7h 34m
Wed 9/167:00 am -
1 stop11h 59m
Deal found 8/23![Frontier logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Mon 9/147:04 pm -
2 stops18h 55m
Mon 9/217:00 am -
1 stop11h 58m
Deal found 8/25![Frontier logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Thu 9/177:04 pm -
2 stops38h 07m
Tue 9/227:00 am -
1 stop11h 59m
Deal found 8/24![Frontier logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Fri 9/187:04 pm -
2 stops18h 55m
Mon 9/217:00 am -
1 stop19h 51m
Deal found 8/26![Frontier logo]()
$330
This Trip.com deal was found by Cheapflights users on 8/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:54 pm -
1 stop26h 05m
Sun 9/277:00 am -
1 stop19h 51m
Deal found 8/23![Frontier logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 8/26. 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.
Tue 9/226:25 am -
1 stop7h 34m
Wed 9/231:00 pm -
2 stops23h 43m
Deal found 8/26![Frontier logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 8/23. 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.
Mon 9/289:03 pm -
2 stops21h 56m
Sat 10/36:00 pm -
1 stop8h 51m
Deal found 8/23![Frontier logo]()
$322
This Expedia deal was found by Cheapflights users on 8/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:27 pm -
1 stop10h 15m
Sat 10/36:00 pm -
1 stop8h 51m
Deal found 8/23![Multiple Airlines logo]()
$326
One-way flights from San Diego to Reagan-NationalSearch for one-way flight options from San Diego to Reagan-National. Find affordable one-way fares based on user searches. Data last updated August 27, 2026.
Search for one-way flight options from San Diego to Reagan-National. Find affordable one-way fares based on user searches. Data last updated August 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/24. 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.
Sun 11/1510:56 am -
2 stops26h 51m
Deal found 8/24![Frontier logo]()
$180
This Super.com deal was found by Cheapflights users on 8/22. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:20 pm -
1 stop10h 22m
Deal found 8/22![JetBlue logo]()
$184
This Super.com deal was found by Cheapflights users on 8/25. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:25 am -
1 stop7h 34m
Deal found 8/25![Frontier logo]()
$186
This CheapOair deal was found by Cheapflights users on 8/23. 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.
Mon 9/288:27 pm -
1 stop10h 15m
Deal found 8/23![JetBlue logo]()
$187
This Jetabroad deal was found by Cheapflights users on 8/22. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/158:40 pm -
1 stop8h 25m
Deal found 8/22![JetBlue logo]()
$191
This Super.com deal was found by Cheapflights users on 8/25. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:45 pm -
1 stop17h 26m
Deal found 8/25![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 8/22. 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.
Fri 9/187:04 pm -
2 stops18h 55m
Deal found 8/22![Frontier logo]()
$193
This Frontier deal was found by Cheapflights users on 8/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:25 am -
1 stop12h 34m
Deal found 8/25![Frontier logo]()
$195
Find flight deals from San Diego to Reagan-National
Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Reagan-National (DCA). 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 August 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $322 (Kiwi.com) |
One-way from | $180 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $397 |
Good round-trip deal | $377 or less |
Good one-way deal | $233 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Reagan-National 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 7,457,451 searches. Data last updated August 27, 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
Cheapest round-trip
Quickest round-trip
San DiegoWashington, D.C.
SAN San Diego - DCA Washington, D.C. Reagan-National
SANDCA
San Diego
Wed 11/11
12:58 pm-9:00 pm
Nonstop5h 02m
Washington, D.C. Reagan-National
Sat 11/14
10:59 am-1:47 pm
Nonstop5h 48m
$337
San DiegoWashington, D.C.
SAN San Diego - DCA Washington, D.C. Reagan-National
SANDCA
San Diego
Tue 11/10
12:58 pm-9:00 pm
Nonstop5h 02m
Washington, D.C. Reagan-National
Sat 11/14
10:59 am-1:47 pm
Nonstop5h 48m
$347
San DiegoWashington, D.C.
SAN San Diego - DCA Washington, D.C. Reagan-National
SANDCA
San Diego
Thu 10/15
11:20 am-10:55 pm
1 stop8h 35m
Washington, D.C. Reagan-National
Sat 10/17
9:15 am-4:35 pm
2 stops10h 20m
$382
San DiegoWashington, D.C.
SAN San Diego - DCA Washington, D.C. Reagan-National
SANDCA
San Diego
Wed 11/4
9:15 am-10:00 pm
2 stops9h 45m
Washington, D.C. Reagan-National
Mon 11/9
1:35 pm-7:55 pm
2 stops9h 20m
$387
San DiegoWashington, D.C.
SAN San Diego - DCA Washington, D.C. Reagan-National
SANDCA
San Diego
Sun 11/1
10:35 pm-11:15 am
2 stops9h 40m
Washington, D.C. Reagan-National
Wed 11/4
12:05 pm-6:55 pm
2 stops9h 50m
$397
San DiegoWashington, D.C.
SAN San Diego - DCA Washington, D.C. Reagan-National
SANDCA
San Diego
Fri 10/30
12:45 pm-9:00 pm
Nonstop5h 15m
Washington, D.C. Reagan-National
Mon 11/2
6:59 pm-8:42 am
1 stop16h 43m
$407
San DiegoWashington, D.C.
SAN San Diego - DCA Washington, D.C. Reagan-National
SANDCA
San Diego
Wed 11/11
12:58 pm-9:00 pm
Nonstop5h 02m
Washington, D.C. Reagan-National
Wed 11/18
8:00 am-3:50 pm
1 stop10h 50m
$420
San DiegoWashington, D.C.
SAN San Diego - DCA Washington, D.C. Reagan-National
SANDCA
San Diego
Fri 11/20
6:35 am-4:55 pm
1 stop7h 20m
Washington, D.C. Reagan-National
Fri 11/27
8:00 am-12:40 pm
1 stop7h 40m
$427
San DiegoWashington, D.C.
SAN San Diego - DCA Washington, D.C. Reagan-National
SANDCA
San Diego
Wed 11/11
12:58 pm-9:00 pm
Nonstop5h 02m
Washington, D.C. Reagan-National
Fri 11/13
10:59 am-1:47 pm
Nonstop5h 48m
$427
San DiegoWashington, D.C.
SAN San Diego - DCA Washington, D.C. Reagan-National
SANDCA
San Diego
Wed 9/23
7:00 am-5:59 pm
1 stop7h 59m
Washington, D.C. Reagan-National
Sat 9/26
10:59 am-1:37 pm
Nonstop5h 38m
$432
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from San Diego to Reagan-National
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 San Diego to Reagan-National in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Diego-Washington, D.C. Reagan-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Diego-Washington, D.C. Reagan-National Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 San Diego-Washington, D.C. Reagan-National Airport 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 San Diego to Reagan-National
Have a flexible travel schedule? Discover the best time to fly to Reagan-National from San Diego with our price prediction graph.
SAN-DCA
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 San Diego to Washington, D.C. Reagan-National Airport
Prices
Airlines
Delays
How far ahead should I book a flight from San Diego to Washington, D.C. Reagan-National Airport?
The price you pay for your flight from San Diego to Washington, D.C. Reagan-National Airport may vary depending on when you book. For the best chance of a lower fare, look to book 61 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Diego to Washington, D.C. Reagan-National Airport?
Currently, January is the cheapest month in which you can book a flight from San Diego to Washington, D.C. Reagan-National Airport (average of $296). Flying from San Diego to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of $522). 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 SAN to DCA?
Find hourly flight availability from San Diego to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 27, 2026.
When flying from San Diego to Washington, D.C. Reagan-National Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from San Diego to Washington, D.C. delayed?
About 26% of weekly flights between San Diego and Washington, D.C. have experienced delays in the past year, with the average delay time being 164 minutes.
What is the most punctual flight time for San Diego to Washington, D.C. flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San Diego to Washington, D.C. flights?
Over the last year, Alaska Airlines have had the lowest number of delays on this route, with just 25% of flights being delayed.
Reviews of airlines servicing Reagan-National
Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated August 27, 2026.
Read reviews from past customers who have flown Southwest,Alaska Airlines, andDelta from San Diego to Washington, D.C. Reagan-National Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodLauren,Dec 2024
MCI - DCA
Entertainment
7.5
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodLauren,Dec 2024
MCI - DCA
Entertainment
7.5
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodLauren,Dec 2024
MCI - DCA
Entertainment
7.5
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodLauren,Dec 2024
MCI - DCA
Entertainment
7.5
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodLauren,Dec 2024
MCI - DCA
Entertainment
7.5
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodLauren,Dec 2024
MCI - DCA
Related info for your journey
Find useful and relevant information for your journey from San Diego to Reagan-National. 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 Washington, D.C. Reagan-National Airport?
Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locationsAlexandria
Owings Mills
Arlington
Tysons
Lanham
Reston
Herndon
Rockville
Hyattsville
Fredericksburg
Woodbridge
Falls Church
Hanover
Laurel
Springfield
Oxon Hill
Clinton
Hunt Valley
Silver Spring
Largo
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from San Diego
Popular flights
Reagan-National flight routes
Alternative routes for San Diego to Reagan-National
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Reagan-National by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Diego to Reagan-National by cabin class
Find flights from San Diego to Reagan-National, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and Reagan-National flights
Browse other San Diego and Reagan-National flight options. Last updated on August 27, 2026.
Other flights from San Diego
Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on August 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Reagan-National
Explore flights to Reagan-National departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 27, 2026.
Top 8 airlines flying from San Diego to Reagan-National
Discover the top 8 airlines that operate flights from San Diego to Reagan-National. 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 7,457,451 searches. Data last updated August 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$138 | Average$273 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$147 | Average$276 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$237 | Average$421 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$254 | Average$386 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$276 | Average$422 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$436 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$277 | Average$297 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$278 | Average$421 | FlexibilityNo cancel fee | On-time71% |