$85+ Cheap flights from San Diego (SAN) to Washington
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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SEA
Apr 22 — Apr 291
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 Washington 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.Cheap flight deals from San Diego to Washington
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Diego to WashingtonExplore the most affordable flight options available from San Diego to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.
Explore the most affordable flight options available from San Diego to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 4/2112:12 pm
SAN
- SEA
1 stop21h 15m
Frontier
Wed 5/67:50 pm
SEA
- SAN
1 stop12h 52m
Frontier
Deal found 3/18![Frontier logo]()
$126
This KAYAK deal was found by Cheapflights users on 3/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 pm
SAN
- SEA
1 stop13h 40m
Southwest
Wed 4/1512:10 pm
SEA
- SAN
Nonstop2h 55m
Southwest
Deal found 3/19![Southwest logo]()
$127
This Trip.com deal was found by Cheapflights users on 3/18. 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 5/27:35 pm
SAN
- SEA
Nonstop3h 18m
Alaska Airlines
Sat 5/94:42 pm
SEA
- SAN
Nonstop2h 57m
Alaska Airlines
Deal found 3/18![Alaska Airlines logo]()
$135
This Southwest deal was found by Cheapflights users on 3/18. 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 4/223:00 pm
SAN
- SEA
Nonstop3h 00m
Southwest
Sun 4/2611:45 am
SEA
- SAN
Nonstop2h 55m
Southwest
Deal found 3/18![Southwest logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 4/1412:12 pm
SAN
- SEA
1 stop21h 15m
Frontier
Fri 4/177:12 pm
SEA
- SAN
1 stop24h 52m
Frontier
Deal found 3/19![Frontier logo]()
$140
This Southwest deal was found by Cheapflights users on 3/18. 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 4/234:15 pm
SAN
- SEA
1 stop6h 15m
Southwest
Wed 4/2912:10 pm
SEA
- SAN
Nonstop2h 55m
Southwest
Deal found 3/18![Southwest logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 4/2210:30 am
SAN
- SEA
1 stop22h 57m
Frontier
Tue 4/287:12 pm
SEA
- SAN
1 stop24h 47m
Frontier
Deal found 3/19![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 4/2210:30 am
SAN
- SEA
1 stop22h 57m
Frontier
Mon 4/2710:11 pm
SEA
- SAN
1 stop15h 06m
Frontier
Deal found 3/18![Frontier logo]()
$151
This Southwest deal was found by Cheapflights users on 3/18. 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 4/153:00 pm
SAN
- SEA
Nonstop3h 00m
Southwest
Wed 4/2212:10 pm
SEA
- SAN
Nonstop2h 55m
Southwest
Deal found 3/18![Southwest logo]()
$152
This Alaska Airlines deal was found by Cheapflights users on 3/18. 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 4/287:00 am
SAN
- PDX
Nonstop2h 48m
Alaska Airlines
Tue 4/282:30 pm
PDX
- SAN
Nonstop2h 36m
Alaska Airlines
Deal found 3/18![Alaska Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 3/23. 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.
Tue 4/1412:12 pm
SAN
- PDX
1 stop23h 26m
Frontier
Sat 4/1812:27 pm
PDX
- SAN
1 stop10h 39m
Frontier
Deal found 3/23![Frontier logo]()
$167
This Expedia deal was found by Cheapflights users on 3/21. 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.
Sat 4/257:00 am
SAN
- PDX
Nonstop2h 48m
Multiple Airlines
Wed 4/2912:38 pm
PDX
- SAN
1 stop7h 21m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$169
Best flights from San Diego to WashingtonDiscover carefully curated flight deals from San Diego to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
Discover carefully curated flight deals from San Diego to Washington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
This Southwest deal was found by Cheapflights users on 3/21. 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 5/29:40 am
SAN
- GEG
Nonstop2h 45m
Southwest
Tue 5/52:40 pm
GEG
- SAN
1 stop5h 15m
Southwest
Deal found 3/21![Southwest logo]()
$187
This United Airlines deal was found by Cheapflights users on 3/18. 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.
Tue 4/286:20 am
SAN
- PDX
2 stops8h 10m
United Airlines
Tue 4/287:14 pm
PDX
- SAN
1 stop5h 15m
United Airlines
Deal found 3/18![United Airlines logo]()
$190
This Alaska Airlines deal was found by Cheapflights users on 3/22. 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.
Tue 5/52:23 pm
SAN
- GEG
1 stop7h 08m
Alaska Airlines
Wed 5/610:30 am
GEG
- SAN
Nonstop2h 48m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$197
This Delta deal was found by Cheapflights users on 3/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:10 pm
SAN
- SEA
Nonstop3h 14m
Delta
Mon 5/1811:45 am
SEA
- SAN
Nonstop3h 03m
Delta
Deal found 3/22![Delta logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 4/176:47 pm
SAN
- BLI
2 stops41h 23m
Multiple Airlines
Fri 4/243:00 pm
BLI
- SAN
1 stop22h 17m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 3/18. 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 4/302:15 pm
SAN
- SEA
Nonstop3h 05m
Southwest
Tue 5/58:25 am
SEA
- SAN
1 stop7h 20m
Southwest
Deal found 3/18![Southwest logo]()
$188
This Southwest deal was found by Cheapflights users on 3/22. 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.
Tue 4/283:00 pm
SAN
- SEA
Nonstop3h 00m
Southwest
Tue 5/512:10 pm
SEA
- SAN
Nonstop2h 55m
Southwest
Deal found 3/22![Southwest logo]()
$193
This United Airlines deal was found by Cheapflights users on 3/19. 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.
Sat 5/161:35 pm
SAN
- SEA
1 stop4h 57m
United Airlines
Mon 5/186:37 pm
SEA
- SAN
1 stop5h 22m
United Airlines
Deal found 3/19![United Airlines logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 3/20. 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 5/68:03 am
SAN
- PDX
1 stop5h 24m
Alaska Airlines
Sat 5/92:30 pm
PDX
- SAN
Nonstop2h 36m
Alaska Airlines
Deal found 3/20![Alaska Airlines logo]()
$230
This Southwest deal was found by Cheapflights users on 3/20. 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 4/155:45 pm
SAN
- GEG
1 stop5h 00m
Southwest
Sat 4/184:50 pm
GEG
- SAN
2 stops6h 35m
Southwest
Deal found 3/20![Southwest logo]()
$202
This Alaska Airlines deal was found by Cheapflights users on 3/20. 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 5/24:41 pm
SAN
- GEG
2 stops7h 14m
Alaska Airlines
Tue 5/510:30 am
GEG
- SAN
Nonstop2h 48m
Alaska Airlines
Deal found 3/20![Alaska Airlines logo]()
$236
This Southwest deal was found by Cheapflights users on 3/18. 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 4/189:40 am
SAN
- GEG
Nonstop2h 45m
Southwest
Mon 4/205:35 pm
GEG
- SAN
1 stop4h 25m
Southwest
Deal found 3/18![Southwest logo]()
$203
This United Airlines deal was found by Cheapflights users on 3/18. 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.
Tue 6/27:15 am
SAN
- PDX
1 stop4h 53m
United Airlines
Tue 6/911:16 am
PDX
- SAN
2 stops8h 35m
United Airlines
Deal found 3/18![United Airlines logo]()
$246
This Delta deal was found by Cheapflights users on 3/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/24:18 pm
SAN
- GEG
1 stop4h 51m
Delta
Tue 7/75:37 pm
GEG
- SAN
1 stop5h 02m
Delta
Deal found 3/22![Delta logo]()
$272
This Alaska Airlines deal was found by Cheapflights users on 3/22. 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.
Sun 4/197:52 pm
SAN
- SEA
1 stop13h 27m
Alaska Airlines
Mon 4/201:00 pm
SEA
- SAN
Nonstop2h 46m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 3/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/54:18 pm
SAN
- GEG
1 stop7h 41m
Delta
Tue 7/75:05 pm
GEG
- SAN
1 stop6h 45m
Delta
Deal found 3/22![Delta logo]()
$272
This Southwest deal was found by Cheapflights users on 3/18. 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 4/259:40 am
SAN
- GEG
Nonstop2h 45m
Southwest
Sun 4/265:20 pm
GEG
- SAN
1 stop5h 50m
Southwest
Deal found 3/18![Southwest logo]()
$207
This United Airlines deal was found by Cheapflights users on 3/18. 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 6/116:35 am
SAN
- GEG
1 stop8h 37m
United Airlines
Mon 6/154:08 pm
GEG
- SAN
1 stop6h 17m
United Airlines
Deal found 3/18![United Airlines logo]()
$273
This Southwest deal was found by Cheapflights users on 3/18. 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 5/152:50 pm
SAN
- PDX
Nonstop2h 35m
Southwest
Sun 5/1711:00 am
PDX
- SAN
Nonstop2h 25m
Southwest
Deal found 3/18![Southwest logo]()
$217
This KAYAK deal was found by Cheapflights users on 3/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/145:31 pm
SAN
- PAE
1 stop4h 38m
Alaska Airlines
Wed 4/157:00 am
PAE
- SAN
1 stop5h 16m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$265
This Delta deal was found by Cheapflights users on 3/21. 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.
Sat 7/111:36 pm
SAN
- SEA
Nonstop2h 56m
Delta
Sun 7/197:15 am
SEA
- SAN
Nonstop2h 56m
Delta
Deal found 3/21![Delta logo]()
$301
This Southwest deal was found by Cheapflights users on 3/22. 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.
Fri 4/242:50 pm
SAN
- PDX
Nonstop2h 35m
Southwest
Mon 4/2711:35 am
PDX
- SAN
Nonstop2h 20m
Southwest
Deal found 3/22![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 3/20. 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 8/73:20 pm
SAN
- SEA
Nonstop3h 04m
Delta
Sat 8/87:59 pm
SEA
- SAN
Nonstop2h 49m
Delta
Deal found 3/20![Delta logo]()
$301
This United Airlines deal was found by Cheapflights users on 3/20. 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 7/86:27 pm
SAN
- PDX
1 stop4h 21m
United Airlines
Sat 7/111:14 pm
PDX
- SAN
1 stop5h 25m
United Airlines
Deal found 3/20![United Airlines logo]()
$311
This American Airlines deal was found by Cheapflights users on 3/19. 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 4/258:15 am
SAN
- PAE
1 stop7h 26m
Multiple Airlines
Sun 4/267:38 am
PAE
- SAN
Nonstop2h 50m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$417
This Alaska Airlines deal was found by Cheapflights users on 3/22. 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.
Sun 4/197:00 am
SAN
- PDX
Nonstop2h 49m
Alaska Airlines
Thu 4/239:27 pm
PDX
- SAN
Nonstop2h 32m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$287
This Delta deal was found by Cheapflights users on 3/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/177:00 am
SAN
- SEA
Nonstop3h 05m
Delta
Sun 6/217:15 am
SEA
- SAN
Nonstop2h 53m
Delta
Deal found 3/22![Delta logo]()
$301
This Southwest deal was found by Cheapflights users on 3/18. 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 4/911:30 am
SAN
- PDX
1 stop4h 50m
Southwest
Mon 4/136:00 am
PDX
- SAN
1 stop3h 55m
Southwest
Deal found 3/18![Southwest logo]()
$232
This United Airlines deal was found by Cheapflights users on 3/21. 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 5/206:05 pm
SAN
- PDX
2 stops6h 54m
United Airlines
Sun 5/248:35 am
PDX
- SAN
1 stop5h 33m
United Airlines
Deal found 3/21![United Airlines logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 3/22. 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 5/85:01 pm
SAN
- SEA
1 stop6h 17m
Alaska Airlines
Mon 5/187:35 pm
SEA
- SAN
Nonstop2h 51m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$287
Last-minute flights from San Diego to WashingtonDiscover last-minute flight deals from San Diego to Washington. Data last updated March 23, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Washington. Data last updated March 23, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 3/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 pm
SAN
- SEA
1 stop13h 40m
Southwest
Wed 4/1512:10 pm
SEA
- SAN
Nonstop2h 55m
Southwest
Deal found 3/19![Southwest logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 4/1412:12 pm
SAN
- SEA
1 stop21h 15m
Frontier
Mon 4/208:45 pm
SEA
- SAN
1 stop16h 32m
Frontier
Deal found 3/19![Frontier logo]()
$140
This Southwest deal was found by Cheapflights users on 3/18. 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 4/153:00 pm
SAN
- SEA
Nonstop3h 00m
Southwest
Fri 4/1711:05 am
SEA
- SAN
Nonstop2h 45m
Southwest
Deal found 3/18![Southwest logo]()
$152
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:00 pm
SAN
- PDX
1 stop11h 59m
Frontier
Tue 4/2112:38 pm
PDX
- SAN
1 stop10h 28m
Frontier
Deal found 3/22![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 4/2112:12 pm
SAN
- SEA
1 stop21h 15m
Frontier
Wed 5/67:50 pm
SEA
- SAN
1 stop12h 52m
Frontier
Deal found 3/18![Frontier logo]()
$126
This Southwest deal was found by Cheapflights users on 3/18. 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 4/223:00 pm
SAN
- SEA
Nonstop3h 00m
Southwest
Sun 4/2611:45 am
SEA
- SAN
Nonstop2h 55m
Southwest
Deal found 3/18![Southwest logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 4/2210:30 am
SAN
- SEA
1 stop22h 57m
Frontier
Tue 4/287:12 pm
SEA
- SAN
1 stop24h 47m
Frontier
Deal found 3/19![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 4/2210:30 am
SAN
- SEA
1 stop22h 57m
Frontier
Mon 4/2710:11 pm
SEA
- SAN
1 stop15h 06m
Frontier
Deal found 3/18![Frontier logo]()
$151
This Southwest deal was found by Cheapflights users on 3/18. 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 4/234:15 pm
SAN
- SEA
1 stop6h 15m
Southwest
Wed 4/2912:10 pm
SEA
- SAN
Nonstop2h 55m
Southwest
Deal found 3/18![Southwest logo]()
$149
This CheapOair deal was found by Cheapflights users on 3/19. 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 4/237:35 pm
SAN
- SEA
Nonstop3h 18m
Alaska Airlines
Sun 4/2610:22 am
SEA
- SAN
Nonstop3h 05m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$158
This Expedia deal was found by Cheapflights users on 3/21. 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.
Sat 4/257:00 am
SAN
- PDX
Nonstop2h 48m
Multiple Airlines
Wed 4/2912:38 pm
PDX
- SAN
1 stop7h 21m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$169
This Alaska Airlines deal was found by Cheapflights users on 3/18. 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 4/287:00 am
SAN
- PDX
Nonstop2h 48m
Alaska Airlines
Tue 4/282:30 pm
PDX
- SAN
Nonstop2h 36m
Alaska Airlines
Deal found 3/18![Alaska Airlines logo]()
$165
One-way flights from San Diego to WashingtonSearch for one-way flight options from San Diego to Washington. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
Search for one-way flight options from San Diego to Washington. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
This CheapOair deal was found by Cheapflights users on 3/19. 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 4/209:08 pm
SAN
- PAE
1 stop12h 42m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$85
This Alaska Airlines deal was found by Cheapflights users on 3/22. 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.
Tue 5/196:53 pm
SAN
- GEG
Nonstop2h 52m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$89
This Booking.com deal was found by Cheapflights users on 3/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:37 am
SAN
- PDX
1 stop7h 09m
Frontier
Deal found 3/21![Frontier logo]()
$90
This Delta deal was found by Cheapflights users on 3/19. 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 4/217:30 am
SAN
- SEA
Nonstop3h 14m
Delta
Deal found 3/19![Delta logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 5/207:34 pm
SAN
- SEA
1 stop15h 02m
Frontier
Deal found 3/19![Frontier logo]()
$91
This CheapOair deal was found by Cheapflights users on 3/21. 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.
Tue 4/217:15 am
SAN
- SEA
1 stop26h 12m
Frontier
Deal found 3/21![Frontier logo]()
$92
This CheapOair deal was found by Cheapflights users on 3/23. 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.
Wed 4/228:00 am
SAN
- GEG
1 stop26h 49m
Frontier
Deal found 3/23![Frontier logo]()
$92
This Delta deal was found by Cheapflights users on 3/19. 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 4/2111:40 am
SAN
- PDX
1 stop5h 30m
Delta
Deal found 3/19![Delta logo]()
$93
This CheapOair deal was found by Cheapflights users on 3/21. 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.
Tue 4/144:21 pm
SAN
- PAE
1 stop7h 38m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$93
This Southwest deal was found by Cheapflights users on 3/20. 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 4/144:30 pm
SAN
- SEA
1 stop6h 25m
Southwest
Deal found 3/20![Southwest logo]()
$93
This Southwest deal was found by Cheapflights users on 3/22. 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.
Wed 6/102:50 pm
SAN
- PDX
Nonstop2h 25m
Southwest
Deal found 3/22![Southwest logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 4/206:51 pm
SAN
- SEA
2 stops38h 36m
Frontier
Deal found 3/18![Frontier logo]()
$95
Find flight deals from San Diego to Washington
Keep the following information in mind while searching for San Diego to Washington flight deals. Data was last updated March 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $126 (Kiwi.com) |
One-way from | $85 (CheapOair) |
Popular in | July |
Cheapest in | February |
Average price | $287 |
Good round-trip deal | $213 or less |
Good one-way deal | $117 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Washington 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 March 23, 2026.
Use the filters below to find and compare flights from San Diego to Washington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Sat 5/2
9:40 am-12:25 pm
Nonstop2h 45m
Spokane
Tue 5/5
2:40 pm-7:55 pm
1 stop5h 15m
$187
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Thu 4/30
2:15 pm-5:20 pm
Nonstop3h 05m
Seattle/Tacoma Intl
Tue 5/5
8:25 am-3:45 pm
1 stop7h 20m
$188
San DiegoPortland
SAN - PDX
SANPDX
San Diego
Tue 4/28
6:20 am-2:30 pm
2 stops8h 10m
Portland
Tue 4/28
7:14 pm-12:29 am
1 stop5h 15m
$190
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Tue 4/28
3:00 pm-6:00 pm
Nonstop3h 00m
Seattle/Tacoma Intl
Tue 5/5
12:10 pm-3:05 pm
Nonstop2h 55m
$193
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Tue 5/5
2:23 pm-9:31 pm
1 stop7h 08m
Spokane
Wed 5/6
10:30 am-1:18 pm
Nonstop2h 48m
$197
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Wed 4/15
5:45 pm-10:45 pm
1 stop5h 00m
Spokane
Sat 4/18
4:50 pm-11:25 pm
2 stops6h 35m
$202
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Sat 4/18
9:40 am-12:25 pm
Nonstop2h 45m
Spokane
Mon 4/20
5:35 pm-10:00 pm
1 stop4h 25m
$203
San DiegoSpokane
SAN - GEG
SANGEG
San Diego
Sat 4/25
9:40 am-12:25 pm
Nonstop2h 45m
Spokane
Sun 4/26
5:20 pm-11:10 pm
1 stop5h 50m
$207
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Fri 5/15
7:10 pm-10:24 pm
Nonstop3h 14m
Seattle/Tacoma Intl
Mon 5/18
11:45 am-2:48 pm
Nonstop3h 03m
$217
San DiegoSeattle
SAN - SEA
SANSEA
San Diego
Sat 5/16
1:35 pm-6:32 pm
1 stop4h 57m
Seattle/Tacoma Intl
Mon 5/18
6:37 pm-11:59 pm
1 stop5h 22m
$217
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from San Diego to Washington
Have a flexible travel schedule? Discover the best time to fly to Washington from San Diego with our price prediction graph.
SAN-SEA
SAN-PDX
SAN-GEG
SAN-PSC
SAN-BLI
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
SAN-USWA
SAN-SEA
SAN-PDX
SAN-GEG
SAN-PSC
What is the cheapest month to book a flight from San Diego to State of Washington?
Currently, April is the cheapest month in which you can book a flight from San Diego to State of Washington (average of $48). Flying from San Diego to State of Washington in July is currently the most expensive (average of $125). 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 WA?
Find hourly flight availability from San Diego to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 23, 2026.
It’s optimal to fly from San Diego to State of Washington in the morning. By choosing this option you can save up to 18% on the cost of your flight, compared to a flight in the evening.
What is the cheapest day to fly from San Diego to State of Washington?
Use this chart to determine the cheapest time to fly round-trip from San Diego to Washington. Price data was last updated on March 14, 2026.
Travelers seeking maximum savings on their San Diego to State of Washington flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from San Diego to State of Washington
Explore weekly flight availability from San Diego to Washington. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 23, 2026.
The most flights from SAN to USWA are scheduled on a Monday (45 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (24 on average).
Reviews of airlines servicing Washington
Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated March 23, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta from San Diego to Washington to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
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 Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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
Popular flights
Top destinations
Alternative routes for San Diego to Washington
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Washington by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Diego to Washington by cabin class
Find flights from San Diego to Washington, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and Washington flights
Browse other San Diego and Washington flight options. Last updated on March 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
San Diego to Washington flights
Consider these flights traveling from San Diego to Washington.
Top 9 airlines flying from San Diego to Washington
Discover the top 9 airlines that operate flights from San Diego to Washington. 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 March 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$67 | Average$157 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$98 | Average$148 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$106 | Average$300 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$110 | Average$214 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$130 | Average$322 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$138 | Average$386 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$166 | Average$289 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$192 | Average$347 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$225 | Average$439 | FlexibilityNo cancel fee | On-time71% |