$159+ 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — DCA
Jun 29 — Jul 61
Round-trip
1 adult, Economy
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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 62 days in advance, depart on a Friday or Thursday and return on a Thursday
Cheap flight deals from San Diego to Reagan-National
Cheapest
Best
Last-minute
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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 May 30, 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 May 30, 2026.
This Southwest deal was found by Cheapflights users on 5/29. 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.
Tue 8/49:05 am
SAN
- DCA
2 stops8h 50m
Southwest
Wed 8/129:35 am
DCA
- SAN
2 stops11h 45m
Southwest
Deal found 5/29![Southwest logo]()
$311
This Southwest deal was found by Cheapflights users on 5/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:30 am
SAN
- DCA
1 stop9h 25m
Southwest
Tue 8/44:30 pm
DCA
- SAN
1 stop7h 15m
Southwest
Deal found 5/26![Southwest logo]()
$312
This Southwest deal was found by Cheapflights users on 5/28. 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.
Tue 8/410:40 pm
SAN
- DCA
1 stop9h 45m
Southwest
Tue 8/111:30 pm
DCA
- SAN
1 stop7h 50m
Southwest
Deal found 5/28![Southwest logo]()
$317
This Southwest deal was found by Cheapflights users on 5/28. 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.
Tue 7/218:30 am
SAN
- DCA
1 stop9h 25m
Southwest
Tue 7/284:55 pm
DCA
- SAN
2 stops8h 50m
Southwest
Deal found 5/28![Southwest logo]()
$322
This Gotogate deal was found by Cheapflights users on 5/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:25 am
SAN
- DCA
1 stop27h 26m
Frontier
Mon 8/101:59 pm
DCA
- SAN
1 stop12h 52m
Frontier
Deal found 5/26![Frontier logo]()
$323
This American Airlines deal was found by Cheapflights users on 5/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:20 pm
SAN
- DCA
1 stop8h 10m
American Airlines
Sat 8/293:11 pm
DCA
- SAN
1 stop7h 33m
American Airlines
Deal found 5/28![American Airlines logo]()
$327
This Southwest deal was found by Cheapflights users on 5/29. 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 8/110:40 pm
SAN
- DCA
1 stop6h 50m
Southwest
Wed 8/124:30 pm
DCA
- SAN
1 stop7h 15m
Southwest
Deal found 5/29![Southwest logo]()
$331
This Super.com deal was found by Cheapflights users on 5/25. 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.
Wed 6/246:25 am
SAN
- DCA
1 stop27h 32m
Frontier
Mon 6/296:00 pm
DCA
- SAN
1 stop8h 53m
Frontier
Deal found 5/25![Frontier logo]()
$335
This Southwest deal was found by Cheapflights users on 5/29. 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 7/1510:40 pm
SAN
- DCA
1 stop7h 05m
Southwest
Tue 7/211:05 pm
DCA
- SAN
1 stop10h 00m
Southwest
Deal found 5/29![Southwest logo]()
$337
This Frontier deal was found by Cheapflights users on 5/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/196:25 am
SAN
- DCA
1 stop12h 34m
Frontier
Mon 6/226:00 pm
DCA
- SAN
1 stop8h 53m
Frontier
Deal found 5/26![Frontier logo]()
$338
This Frontier deal was found by Cheapflights users on 5/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/910:00 am
SAN
- DCA
1 stop8h 59m
Frontier
Mon 7/136:00 pm
DCA
- SAN
1 stop8h 51m
Frontier
Deal found 5/26![Frontier logo]()
$340
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 May 30, 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 May 30, 2026.
This Southwest deal was found by Cheapflights users on 5/27. 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.
Tue 7/2112:30 pm
SAN
- DCA
1 stop6h 25m
Southwest
Wed 7/224:25 pm
DCA
- SAN
1 stop10h 00m
Southwest
Deal found 5/27![Southwest logo]()
$362
This Alaska Airlines deal was found by Cheapflights users on 5/27. 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 8/1412:42 pm
SAN
- DCA
Nonstop5h 18m
Alaska Airlines
Sun 8/168:59 am
DCA
- SAN
Nonstop5h 40m
Alaska Airlines
Deal found 5/27![Alaska Airlines logo]()
$397
This Delta deal was found by Cheapflights users on 5/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:32 pm
SAN
- DCA
1 stop7h 12m
Delta
Mon 9/76:10 am
DCA
- SAN
1 stop7h 10m
Delta
Deal found 5/28![Delta logo]()
$407
This United Airlines deal was found by Cheapflights users on 5/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2610:25 pm
SAN
- DCA
1 stop7h 29m
United Airlines
Mon 6/295:05 pm
DCA
- SAN
1 stop8h 29m
United Airlines
Deal found 5/29![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 5/30. 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 7/2410:40 pm
SAN
- DCA
1 stop7h 00m
Southwest
Wed 7/294:55 pm
DCA
- SAN
2 stops8h 50m
Southwest
Deal found 5/30![Southwest logo]()
$377
This Alaska Airlines deal was found by Cheapflights users on 5/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2112:42 pm
SAN
- DCA
Nonstop5h 18m
Alaska Airlines
Mon 7/278:59 am
DCA
- SAN
Nonstop5h 40m
Alaska Airlines
Deal found 5/25![Alaska Airlines logo]()
$397
This Delta deal was found by Cheapflights users on 5/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1611:34 am
SAN
- DCA
1 stop8h 25m
Delta
Wed 6/1712:29 pm
DCA
- SAN
1 stop8h 52m
Delta
Deal found 5/25![Delta logo]()
$407
This Southwest deal was found by Cheapflights users on 5/29. 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.
Tue 7/147:05 am
SAN
- DCA
1 stop8h 50m
Southwest
Fri 7/172:00 pm
DCA
- SAN
2 stops10h 00m
Southwest
Deal found 5/29![Southwest logo]()
$422
This Southwest deal was found by Cheapflights users on 5/25. 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 11/67:45 am
SAN
- DCA
2 stops9h 10m
Southwest
Sun 11/84:05 pm
DCA
- SAN
2 stops9h 50m
Southwest
Deal found 5/25![Southwest logo]()
$437
This Southwest deal was found by Cheapflights users on 5/27. 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 6/177:45 am
SAN
- DCA
2 stops10h 10m
Southwest
Wed 7/14:55 pm
DCA
- SAN
2 stops8h 45m
Southwest
Deal found 5/27![Southwest logo]()
$442
This Southwest deal was found by Cheapflights users on 5/25. 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.
Tue 6/1610:40 pm
SAN
- DCA
1 stop6h 45m
Southwest
Mon 6/223:00 pm
DCA
- SAN
2 stops9h 05m
Southwest
Deal found 5/25![Southwest logo]()
$467
This Southwest deal was found by Cheapflights users on 5/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/410:40 pm
SAN
- DCA
1 stop6h 50m
Southwest
Fri 7/1011:45 am
DCA
- SAN
2 stops10h 00m
Southwest
Deal found 5/26![Southwest logo]()
$467
Last-minute flights from San Diego to Reagan-NationalDiscover last-minute flight deals from San Diego to Reagan-National. Data last updated May 30, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Reagan-National. Data last updated May 30, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 5/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/29:37 am
SAN
- DCA
1 stop24h 22m
Frontier
Wed 6/107:00 am
DCA
- SAN
1 stop29h 09m
Frontier
Deal found 5/26![Frontier logo]()
$373
This Super.com deal was found by Cheapflights users on 5/25. 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.
Wed 6/39:37 am
SAN
- DCA
1 stop9h 21m
Frontier
Wed 6/107:00 am
DCA
- SAN
1 stop29h 09m
Frontier
Deal found 5/25![Frontier logo]()
$380
This Expedia deal was found by Cheapflights users on 5/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:25 am
SAN
- DCA
1 stop7h 34m
Multiple Airlines
Wed 8/266:59 pm
DCA
- SAN
1 stop16h 49m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$383
This Expedia deal was found by Cheapflights users on 5/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:28 pm
SAN
- DCA
1 stop20h 29m
Frontier
Fri 6/127:00 am
DCA
- SAN
1 stop19h 53m
Frontier
Deal found 5/26![Frontier logo]()
$348
This Trip.com deal was found by Cheapflights users on 5/27. 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.
Sat 6/139:37 am
SAN
- DCA
1 stop9h 22m
Frontier
Sat 9/56:00 pm
DCA
- SAN
1 stop8h 53m
Frontier
Deal found 5/27![Frontier logo]()
$369
This Frontier deal was found by Cheapflights users on 5/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/156:25 am
SAN
- DCA
1 stop12h 34m
Frontier
Mon 6/226:00 pm
DCA
- SAN
1 stop8h 53m
Frontier
Deal found 5/26![Frontier logo]()
$368
This Frontier deal was found by Cheapflights users on 5/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1710:04 am
SAN
- DCA
1 stop8h 55m
Frontier
Mon 6/226:00 pm
DCA
- SAN
1 stop8h 53m
Frontier
Deal found 5/26![Frontier logo]()
$364
This Frontier deal was found by Cheapflights users on 5/27. 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 6/176:25 am
SAN
- DCA
1 stop12h 34m
Frontier
Fri 7/36:00 pm
DCA
- SAN
1 stop8h 53m
Frontier
Deal found 5/27![Frontier logo]()
$370
This Super.com deal was found by Cheapflights users on 5/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1810:04 am
SAN
- DCA
1 stop23h 53m
Frontier
Tue 6/236:00 pm
DCA
- SAN
1 stop8h 53m
Frontier
Deal found 5/26![Frontier logo]()
$371
This Frontier deal was found by Cheapflights users on 5/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/196:25 am
SAN
- DCA
1 stop12h 34m
Frontier
Mon 6/226:00 pm
DCA
- SAN
1 stop8h 53m
Frontier
Deal found 5/26![Frontier logo]()
$338
This Frontier deal was found by Cheapflights users on 5/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/196:25 am
SAN
- DCA
1 stop12h 34m
Frontier
Tue 6/236:00 pm
DCA
- SAN
1 stop8h 53m
Frontier
Deal found 5/26![Frontier logo]()
$366
This Super.com deal was found by Cheapflights users on 5/25. 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.
Wed 6/246:25 am
SAN
- DCA
1 stop27h 32m
Frontier
Mon 6/296:00 pm
DCA
- SAN
1 stop8h 53m
Frontier
Deal found 5/25![Frontier logo]()
$335
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 May 30, 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 May 30, 2026.
This Southwest deal was found by Cheapflights users on 5/27. 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.
Tue 7/2110:40 pm
SAN
- DCA
1 stop6h 45m
Southwest
Deal found 5/27![Southwest logo]()
$159
This Delta deal was found by Cheapflights users on 5/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:10 pm
SAN
- DCA
1 stop9h 16m
Delta
Deal found 5/28![Delta logo]()
$164
This Super.com deal was found by Cheapflights users on 5/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/910:00 am
SAN
- DCA
1 stop8h 59m
Frontier
Deal found 5/26![Frontier logo]()
$167
This Super.com deal was found by Cheapflights users on 5/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/266:25 am
SAN
- DCA
1 stop7h 32m
Frontier
Deal found 5/26![Frontier logo]()
$168
This Super.com deal was found by Cheapflights users on 5/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2410:00 am
SAN
- DCA
1 stop8h 59m
Frontier
Deal found 5/26![Frontier logo]()
$169
This Frontier deal was found by Cheapflights users on 5/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:37 am
SAN
- DCA
1 stop9h 22m
Frontier
Deal found 5/26![Frontier logo]()
$170
This Super.com deal was found by Cheapflights users on 5/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:25 am
SAN
- DCA
1 stop27h 26m
Frontier
Deal found 5/26![Frontier logo]()
$174
This Frontier deal was found by Cheapflights users on 5/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:25 am
SAN
- DCA
1 stop12h 34m
Frontier
Deal found 5/26![Frontier logo]()
$176
This Super.com deal was found by Cheapflights users on 5/26. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:25 am
SAN
- DCA
1 stop27h 32m
Frontier
Deal found 5/26![Frontier logo]()
$178
This Super.com deal was found by Cheapflights users on 5/28. 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 6/236:25 am
SAN
- DCA
1 stop27h 32m
Frontier
Deal found 5/28![Frontier logo]()
$179
This Southwest deal was found by Cheapflights users on 5/28. 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 10/16:20 am
SAN
- DCA
1 stop8h 00m
Southwest
Deal found 5/28![Southwest logo]()
$180
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 May 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $311 (Southwest) |
One-way from | $159 (Southwest) |
Popular in | June |
Cheapest in | January |
Average price | $421 |
Good round-trip deal | $397 or less |
Good one-way deal | $273 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 2,558,603 searches. Data last updated May 30, 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
San DiegoWashington, D.C.
SAN - DCA
SANDCA
San Diego
Tue 7/21
12:30 pm-9:55 pm
1 stop6h 25m
Washington, D.C. Reagan-National
Wed 7/22
4:25 pm-11:25 pm
1 stop10h 00m
$362
San DiegoWashington, D.C.
SAN - DCA
SANDCA
San Diego
Fri 7/24
10:40 pm-8:40 am
1 stop7h 00m
Washington, D.C. Reagan-National
Wed 7/29
4:55 pm-10:45 pm
2 stops8h 50m
$377
Quickest round-trip
San DiegoWashington, D.C.
SAN - DCA
SANDCA
San Diego
Fri 8/14
12:42 pm-9:00 pm
Nonstop5h 18m
Washington, D.C. Reagan-National
Sun 8/16
8:59 am-11:39 am
Nonstop5h 40m
$397
San DiegoWashington, D.C.
SAN - DCA
SANDCA
San Diego
Tue 7/21
12:42 pm-9:00 pm
Nonstop5h 18m
Washington, D.C. Reagan-National
Mon 7/27
8:59 am-11:39 am
Nonstop5h 40m
$397
San DiegoWashington, D.C.
SAN - DCA
SANDCA
San Diego
Fri 9/4
12:32 pm-10:44 pm
1 stop7h 12m
Washington, D.C. Reagan-National
Mon 9/7
6:10 am-10:20 am
1 stop7h 10m
$407
San DiegoWashington, D.C.
SAN - DCA
SANDCA
San Diego
Tue 6/16
11:34 am-10:59 pm
1 stop8h 25m
Washington, D.C. Reagan-National
Wed 6/17
12:29 pm-6:21 pm
1 stop8h 52m
$407
San DiegoWashington, D.C.
SAN - DCA
SANDCA
San Diego
Fri 6/26
10:25 pm-8:54 am
1 stop7h 29m
Washington, D.C. Reagan-National
Mon 6/29
5:05 pm-10:34 pm
1 stop8h 29m
$414
San DiegoWashington, D.C.
SAN - DCA
SANDCA
San Diego
Tue 7/14
7:05 am-6:55 pm
1 stop8h 50m
Washington, D.C. Reagan-National
Fri 7/17
2:00 pm-9:00 pm
2 stops10h 00m
$422
San DiegoWashington, D.C.
SAN - DCA
SANDCA
San Diego
Fri 11/6
7:45 am-7:55 pm
2 stops9h 10m
Washington, D.C. Reagan-National
Sun 11/8
4:05 pm-10:55 pm
2 stops9h 50m
$437
San DiegoWashington, D.C.
SAN - DCA
SANDCA
San Diego
Wed 6/17
7:45 am-8:55 pm
2 stops10h 10m
Washington, D.C. Reagan-National
Wed 7/1
4:55 pm-10:40 pm
2 stops8h 45m
$442
Showing 1-10 of 24 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 May.
| 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 June is currently the most expensive (average of $444). 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 May 30, 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 157 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 26% 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 May 30, 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.
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Comfort
8.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
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
Tysons
Owings Mills
Springfield
Arlington
Reston
Herndon
Fredericksburg
Rockville
Hyattsville
Manassas
Hanover
Laurel
Falls Church
Waldorf
Silver Spring
Largo
Clinton
Hunt Valley
Woodbridge
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San Diego and Reagan-National flights
Browse other San Diego and Reagan-National flight options. Last updated on May 30, 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 May 30, 2026.
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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 May 30, 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 2,558,603 searches. Data last updated May 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$138 | Average$279 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$147 | Average$276 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$237 | Average$398 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$252 | Average$368 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$256 | Average$396 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$276 | Average$396 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$417 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$277 | Average$318 | FlexibilityNo cancel fee | On-time85% |