$180+ Cheap flights from Reagan-National (DCA) to San Diego (SAN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SAN
Nov 13 — Nov 201
Round-trip
1 adult, Economy
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Find cheap flights from Reagan-National to San Diego 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 Washington, D.C. Reagan-National to San Diego are usually found in January or March, booked 80 days in advance, depart on a Saturday or Thursday and return on a Thursday
Cheap flight deals from Reagan-National to San Diego
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Best
Last-minute
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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 October 14, 2026.
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 October 14, 2026.
This Mytrip deal was found by Cheapflights users on 10/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:00 pm -
2 stops19h 11m
Mon 11/97:38 pm -
2 stops18h 09m
Deal found 10/12![Frontier logo]()
$346
This Expedia deal was found by Cheapflights users on 10/10. 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.
Wed 12/167:00 am -
1 stop19h 58m
Tue 1/2612:52 pm -
Nonstop5h 08m
Deal found 10/10![Multiple Airlines logo]()
$348
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 11/216:00 pm -
1 stop8h 57m
Thu 11/268:50 am -
2 stops10h 05m
Deal found 10/8![Frontier logo]()
$349
This Mytrip deal was found by Cheapflights users on 10/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/31:33 pm -
1 stop23h 48m
Sat 12/57:51 pm -
2 stops18h 04m
Deal found 10/12![Frontier logo]()
$350
This Expedia deal was found by Cheapflights users on 10/10. 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.
Sun 11/157:00 am -
1 stop19h 57m
Thu 11/196:25 am -
1 stop7h 22m
Deal found 10/10![Frontier logo]()
$351
This American Airlines deal was found by Cheapflights users on 10/10. 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.
Sat 11/216:19 pm -
1 stop8h 28m
Wed 11/2512:08 pm -
1 stop6h 52m
Deal found 10/10![American Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 12/216:00 pm -
1 stop9h 28m
Wed 12/306:25 am -
1 stop27h 00m
Deal found 10/10![Frontier logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 11/76:00 pm -
1 stop8h 57m
Mon 11/166:25 am -
1 stop7h 22m
Deal found 10/12![Frontier logo]()
$354
This Cheapflightsfares deal was found by Cheapflights users on 10/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/216:00 pm -
1 stop9h 28m
Sun 12/276:25 am -
1 stop27h 00m
Deal found 10/11![Frontier logo]()
$355
This CheapOair deal was found by Cheapflights users on 10/13. 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.
Thu 10/296:00 pm -
1 stop8h 57m
Thu 11/56:25 am -
1 stop12h 25m
Deal found 10/13![Frontier logo]()
$356
This Alaska Airlines deal was found by Cheapflights users on 10/10. 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.
Sat 12/510:59 am -
Nonstop5h 59m
Wed 12/912:58 pm -
Nonstop5h 02m
Deal found 10/10![Alaska Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 10/9. 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 12/24:45 pm -
1 stop7h 25m
Mon 12/76:30 am -
2 stops9h 25m
Deal found 10/9![Southwest logo]()
$358
Best flights from Reagan-National to San DiegoDiscover carefully curated flight deals from Reagan-National to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 14, 2026.
Discover carefully curated flight deals from Reagan-National to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 14, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/13. 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 1/610:59 am -
Nonstop5h 58m
Thu 1/1412:52 pm -
Nonstop5h 08m
Deal found 10/13![Alaska Airlines logo]()
$377
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Wed 12/210:54 am -
1 stop8h 06m
Fri 12/117:41 pm -
2 stops12h 02m
Deal found 10/12![United Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 10/13. 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.
Mon 11/94:25 pm -
2 stops8h 55m
Thu 11/128:35 am -
2 stops11h 15m
Deal found 10/13![Southwest logo]()
$532
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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 11/1810:59 am -
Nonstop5h 48m
Fri 11/271:06 pm -
Nonstop4h 54m
Deal found 10/9![Alaska Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 10/10. 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.
Thu 12/1010:59 am -
Nonstop5h 59m
Mon 12/148:59 pm -
1 stop18h 00m
Deal found 10/10![Alaska Airlines logo]()
$460
This United Airlines deal was found by Cheapflights users on 10/10. 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.
Mon 12/217:35 am -
1 stop10h 39m
Fri 1/19:42 pm -
1 stop8h 55m
Deal found 10/10![United Airlines logo]()
$557
This Southwest deal was found by Cheapflights users on 10/13. 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 12/266:55 pm -
1 stop7h 15m
Wed 12/308:35 am -
2 stops12h 20m
Deal found 10/13![Southwest logo]()
$608
This Alaska Airlines deal was found by Cheapflights users on 10/11. 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 12/26:59 pm -
1 stop15h 41m
Fri 12/1112:58 pm -
Nonstop5h 02m
Deal found 10/11![Alaska Airlines logo]()
$520
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Thu 12/107:41 am -
2 stops11h 19m
Mon 12/147:41 pm -
2 stops11h 15m
Deal found 10/9![United Airlines logo]()
$602
This Alaska Airlines deal was found by Cheapflights users on 10/10. 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.
Sat 12/266:59 pm -
1 stop15h 43m
Tue 1/57:11 am -
1 stop7h 48m
Deal found 10/10![Alaska Airlines logo]()
$557
This Alaska Airlines deal was found by Cheapflights users on 10/10. 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.
Sat 11/76:59 pm -
1 stop17h 58m
Sun 11/812:58 pm -
Nonstop5h 02m
Deal found 10/10![Alaska Airlines logo]()
$567
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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 12/2310:59 am -
Nonstop5h 55m
Mon 12/287:04 am -
1 stop7h 52m
Deal found 10/9![Alaska Airlines logo]()
$592
Last-minute flights from Reagan-National to San DiegoDiscover last-minute flight deals from Reagan-National to San Diego. Data last updated October 14, 2026 and is based on user searches.
Discover last-minute flight deals from Reagan-National to San Diego. Data last updated October 14, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/10. 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.
Wed 10/281:00 pm -
2 stops24h 03m
Sat 10/314:53 pm -
1 stop17h 16m
Deal found 10/10![Frontier logo]()
$358
This CheapOair deal was found by Cheapflights users on 10/13. 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.
Thu 10/296:00 pm -
1 stop8h 57m
Thu 11/56:25 am -
1 stop12h 25m
Deal found 10/13![Frontier logo]()
$356
This Mytrip deal was found by Cheapflights users on 10/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:00 pm -
1 stop8h 57m
Wed 11/411:06 am -
2 stops22h 03m
Deal found 10/9![Frontier logo]()
$355
This Mytrip deal was found by Cheapflights users on 10/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:00 pm -
2 stops19h 11m
Mon 11/97:38 pm -
2 stops18h 09m
Deal found 10/12![Frontier logo]()
$346
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:00 pm -
1 stop13h 57m
Sun 11/86:25 am -
1 stop12h 25m
Deal found 10/12![Frontier logo]()
$353
This American Airlines deal was found by Cheapflights users on 10/9. 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.
Wed 11/45:00 am -
1 stop8h 39m
Sun 11/810:40 pm -
1 stop8h 20m
Deal found 10/9![American Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 11/76:00 pm -
1 stop8h 57m
Mon 11/166:25 am -
1 stop7h 22m
Deal found 10/12![Frontier logo]()
$354
This Priceline deal was found by Cheapflights users on 10/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:59 am -
Nonstop5h 48m
Wed 12/211:16 am -
1 stop7h 39m
Deal found 10/9![Multiple Airlines logo]()
$348
This Expedia deal was found by Cheapflights users on 10/10. 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.
Sun 11/157:00 am -
1 stop19h 57m
Thu 11/196:25 am -
1 stop7h 22m
Deal found 10/10![Frontier logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 11/196:00 pm -
1 stop8h 57m
Sat 11/219:07 pm -
2 stops21h 48m
Deal found 10/12![Frontier logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 11/216:00 pm -
1 stop8h 57m
Thu 11/268:50 am -
2 stops10h 05m
Deal found 10/8![Frontier logo]()
$349
This American Airlines deal was found by Cheapflights users on 10/10. 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.
Sat 11/216:19 pm -
1 stop8h 28m
Wed 11/2512:08 pm -
1 stop6h 52m
Deal found 10/10![American Airlines logo]()
$352
One-way flights from Reagan-National to San DiegoSearch for one-way flight options from Reagan-National to San Diego. Find affordable one-way fares based on user searches. Data last updated October 14, 2026.
Search for one-way flight options from Reagan-National to San Diego. Find affordable one-way fares based on user searches. Data last updated October 14, 2026.
This Southwest deal was found by Cheapflights users on 10/8. 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 10/316:05 am -
2 stops9h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Southwest logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 10/13. 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 11/191:00 pm -
1 stop13h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Frontier logo]()
$182
This Mytrip deal was found by Cheapflights users on 10/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:00 pm -
2 stops24h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Frontier logo]()
$183
This Southwest deal was found by Cheapflights users on 10/12. 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 12/114:25 pm -
1 stop7h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Southwest logo]()
$184
This CheapOair deal was found by Cheapflights users on 10/10. 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 1/45:55 pm -
1 stop29h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![JetBlue logo]()
$187
This Delta deal was found by Cheapflights users on 10/12. 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.
Sun 11/156:05 am -
1 stop7h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Delta logo]()
$189
This Super.com deal was found by Cheapflights users on 10/13. 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 12/236:00 pm -
1 stop9h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Frontier logo]()
$190
This Southwest deal was found by Cheapflights users on 10/12. 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 10/285:25 pm -
1 stop7h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Southwest logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 12/206:00 pm -
2 stops23h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 12/116:00 pm -
2 stops21h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Frontier logo]()
$193
This Southwest deal was found by Cheapflights users on 10/9. 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 11/134:05 pm -
2 stops9h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Southwest logo]()
$194
This Orbitz deal was found by Cheapflights users on 10/9. 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.
Wed 12/91:40 pm -
1 stop23h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Frontier logo]()
$195
Find 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 October 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $346 (Mytrip) |
One-way from | $180 (Southwest) |
Popular in | November |
Cheapest in | January |
Average price | $436 |
Good round-trip deal | $411 or less |
Good one-way deal | $238 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 7,457,451 searches. Data last updated October 14, 2026.
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
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.San Diego
DCA Washington, D.C. Reagan-National - SAN San Diego
DCASAN
Washington, D.C. Reagan-National
Wed 10/28
1:15 pm-8:35 pm
1 stop10h 20m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$196
Washington, D.C.San Diego
DCA Washington, D.C. Reagan-National - SAN San Diego
DCASAN
Washington, D.C. Reagan-National
Mon 11/30
4:20 pm-1:30 am
1 stop12h 10m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$244
Washington, D.C.San Diego
DCA Washington, D.C. Reagan-National - SAN San Diego
DCASAN
Washington, D.C. Reagan-National
Mon 1/4
3:55 pm-11:03 pm
1 stop10h 08m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$249
Washington, D.C.San Diego
DCA Washington, D.C. Reagan-National - SAN San Diego
DCASAN
Washington, D.C. Reagan-National
Thu 11/5
12:59 pm-7:04 pm
1 stop9h 05m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$249
Washington, D.C.San Diego
DCA Washington, D.C. Reagan-National - SAN San Diego
DCASAN
Washington, D.C. Reagan-National
Sat 11/21
4:40 pm-11:30 pm
2 stops9h 50m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$264
Quickest round-trip
Washington, D.C.San Diego
DCA Washington, D.C. Reagan-National - SAN San Diego
DCASAN
Washington, D.C. Reagan-National
Sun 11/8
10:59 am-1:47 pm
Nonstop5h 48m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$304
Washington, D.C.San Diego
DCA Washington, D.C. Reagan-National - SAN San Diego
DCASAN
Washington, D.C. Reagan-National
Sun 10/25
6:10 am-10:20 am
1 stop7h 10m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$309
Washington, D.C.San Diego
DCA Washington, D.C. Reagan-National - SAN San Diego
DCASAN
Washington, D.C. Reagan-National
Sat 11/7
6:00 am-5:15 pm
2 stops14h 15m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$329
Washington, D.C.San Diego
DCA Washington, D.C. Reagan-National - SAN San Diego
DCASAN
Washington, D.C. Reagan-National
Sun 11/8
9:30 am-8:37 pm
2 stops14h 07m
San Diego
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$329
Washington, D.C.San Diego
DCA Washington, D.C. Reagan-National - SAN San Diego
DCASAN
Washington, D.C. Reagan-National
Wed 1/6
10:59 am-1:57 pm
Nonstop5h 58m
San Diego
Thu 1/14
12:52 pm-9:00 pm
Nonstop5h 08m
$377
Showing 1-10 of 21 resultsSorted by cheapest first
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-San Diego flight deals on Cheapflights vs. FlightHub >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 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 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.
DCA-SAN
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
How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to San Diego?
The best time to book flights from Washington, D.C. Reagan-National Airport to San Diego is 79 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, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Diego (average of $297). Flying from Washington, D.C. Reagan-National Airport to San Diego in November 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 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 October 14, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to San Diego as you normally would.
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 October 14, 2026.
See what other customers who have flown with Alaska Airlines,Southwest, andUnited 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.
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.0
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.0
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.0
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.0
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.0
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Overall
7.9
Crew
8.5
Boarding
8.1
Food
7.0
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - 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
National City
Chula Vista
San Ysidro
Poway
Coronado
La Mesa
Julian
Santee
Lemon Grove
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Reagan-National and San Diego flights
Browse other Reagan-National and San Diego flight options. Last updated on October 14, 2026.
Other flights from Reagan-National
Browse through other flights departing from Reagan-National. Flights are based on user searches made on Cheapflights and were last updated on October 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Diego
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 14, 2026.
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 7,457,451 searches. Data last updated October 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$130 | Average$310 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$158 | Average$587 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$255 | Average$377 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$256 | Average$446 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$257 | Average$436 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$260 | Average$439 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$276 | Average$420 | FlexibilityNo cancel fee | On-time63% |