$69+ Cheap flights from Washington 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SAN
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from Washington 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
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Cheapest flights from Washington to San DiegoExplore the most affordable flight options available from Washington to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from Washington to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 12/47:10 am -
Nonstop3h 00m
Mon 12/77:05 pm -
Nonstop2h 59m
Deal found 9/7![Alaska Airlines logo]()
$97
This Southwest deal was found by Cheapflights users on 9/7. 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 10/63:30 pm -
Nonstop2h 25m
Sat 10/104:55 pm -
Nonstop2h 40m
Deal found 9/7![Southwest logo]()
$137
This Expedia deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:24 pm -
1 stop4h 35m
Mon 10/58:05 pm -
Nonstop2h 42m
Deal found 9/4![Multiple Airlines logo]()
$138
This Expedia deal was found by Cheapflights users on 9/3. 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 11/1710:34 am -
Nonstop2h 39m
Sat 11/218:37 pm -
Nonstop2h 50m
Deal found 9/3![Alaska Airlines logo]()
$139
This Alaska Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:30 am -
Nonstop2h 42m
Sat 10/246:53 am -
Nonstop2h 38m
Deal found 9/4![Alaska Airlines logo]()
$140
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:08 pm -
Nonstop2h 51m
Sun 10/186:15 am -
Nonstop3h 13m
Deal found 9/6![Alaska Airlines logo]()
$141
This Southwest deal was found by Cheapflights users on 9/7. 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 9/305:55 am -
2 stops5h 50m
Sat 10/34:55 pm -
Nonstop3h 05m
Deal found 9/7![Southwest logo]()
$142
This Booking.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:04 pm -
Nonstop2h 33m
Mon 11/167:00 am -
Nonstop2h 43m
Deal found 9/4![Alaska Airlines logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:16 pm -
2 stops36h 55m
Mon 11/28:32 pm -
1 stop14h 27m
Deal found 9/4![Frontier logo]()
$143
This Southwest deal was found by Cheapflights users on 9/3. 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 10/18:00 am -
Nonstop2h 25m
Thu 10/87:00 pm -
1 stop4h 10m
Deal found 9/3![Southwest logo]()
$143
This Booking.com deal was found by Cheapflights users on 9/7. 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.
Thu 11/128:48 pm -
Nonstop2h 49m
Sun 11/156:16 am -
Nonstop3h 12m
Deal found 9/7![Alaska Airlines logo]()
$144
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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.
Mon 10/264:54 pm -
Nonstop2h 49m
Mon 11/27:45 pm -
Nonstop3h 12m
Deal found 9/7![Alaska Airlines logo]()
$145
Best flights from Washington to San DiegoDiscover carefully curated flight deals from Washington to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Washington to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This Southwest deal was found by Cheapflights users on 9/7. 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 10/178:00 am -
Nonstop2h 25m
Wed 10/2811:00 am -
1 stop3h 55m
Deal found 9/7![Southwest logo]()
$143
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 10/2910:58 am -
1 stop6h 22m
Sat 10/315:20 pm -
Nonstop3h 06m
Deal found 9/7![Alaska Airlines logo]()
$150
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1412:05 pm -
Nonstop2h 59m
Sun 10/181:53 pm -
Nonstop3h 07m
Deal found 9/6![Delta logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:00 am -
1 stop13h 17m
Wed 10/142:01 pm -
2 stops23h 39m
Deal found 9/5![Multiple Airlines logo]()
$264
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 10/209:10 am -
1 stop7h 41m
Mon 10/269:20 am -
Nonstop3h 08m
Deal found 9/7![Alaska Airlines logo]()
$150
This Delta deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/187:20 am -
Nonstop2h 55m
Mon 2/226:50 am -
Nonstop3h 15m
Deal found 9/4![Delta logo]()
$162
This Southwest deal was found by Cheapflights users on 9/3. 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 10/146:40 pm -
Nonstop2h 55m
Mon 10/198:00 pm -
1 stop5h 00m
Deal found 9/3![Southwest logo]()
$167
This Southwest deal was found by Cheapflights users on 9/7. 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 10/276:40 am -
2 stops4h 55m
Tue 10/274:15 pm -
2 stops5h 15m
Deal found 9/7![Southwest logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:38 pm -
Nonstop2h 46m
Mon 10/56:53 am -
Nonstop2h 38m
Deal found 9/3![Alaska Airlines logo]()
$187
This Delta deal was found by Cheapflights users on 9/3. 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 10/167:10 pm -
1 stop4h 45m
Mon 10/193:00 pm -
1 stop7h 19m
Deal found 9/3![Delta logo]()
$192
This Southwest deal was found by Cheapflights users on 9/3. 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 10/246:05 am -
2 stops6h 10m
Wed 10/286:45 am -
1 stop6h 30m
Deal found 9/3![Southwest logo]()
$182
This Alaska Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:31 am -
1 stop8h 21m
Tue 10/206:00 pm -
Nonstop2h 40m
Deal found 9/5![Alaska Airlines logo]()
$200
This Delta deal was found by Cheapflights users on 9/7. 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 10/15:25 am -
1 stop4h 44m
Sat 10/37:00 am -
1 stop4h 56m
Deal found 9/7![Delta logo]()
$203
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:45 am -
Nonstop2h 50m
Thu 10/86:00 pm -
1 stop4h 35m
Deal found 9/3![Southwest logo]()
$192
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:17 pm -
1 stop5h 24m
Thu 11/126:39 pm -
Nonstop2h 50m
Deal found 9/6![Alaska Airlines logo]()
$202
This Delta deal was found by Cheapflights users on 9/3. 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 10/143:30 pm -
1 stop7h 21m
Sat 10/177:45 am -
1 stop7h 05m
Deal found 9/3![Delta logo]()
$203
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:25 am -
1 stop6h 25m
Tue 10/63:25 pm -
1 stop5h 30m
Deal found 9/6![Southwest logo]()
$195
This Alaska Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:00 pm -
1 stop16h 06m
Mon 10/268:28 pm -
1 stop13h 42m
Deal found 9/7![Alaska Airlines logo]()
$203
This Delta deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:55 am -
Nonstop2h 55m
Sat 11/213:52 pm -
Nonstop3h 08m
Deal found 9/4![Delta logo]()
$207
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:50 pm -
1 stop4h 15m
Wed 11/118:00 am -
1 stop5h 30m
Deal found 9/6![Southwest logo]()
$195
This Alaska Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:42 pm -
1 stop7h 01m
Fri 10/307:27 pm -
1 stop14h 19m
Deal found 9/4![Alaska Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:00 am -
1 stop13h 17m
Thu 9/249:03 pm -
1 stop16h 08m
Deal found 9/3![Multiple Airlines logo]()
$328
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:10 pm -
Nonstop2h 50m
Sun 10/48:40 am -
Nonstop3h 05m
Deal found 9/7![Southwest logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:42 pm -
1 stop11h 17m
Mon 10/268:28 pm -
1 stop15h 11m
Deal found 9/5![Alaska Airlines logo]()
$203
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/113:26 pm -
1 stop7h 28m
Sun 11/156:15 am -
1 stop6h 04m
Deal found 9/6![Delta logo]()
$233
This Southwest deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:30 pm -
Nonstop2h 25m
Sat 10/104:55 pm -
Nonstop2h 40m
Deal found 9/4![Southwest logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:07 pm -
Nonstop2h 51m
Sun 10/259:14 pm -
1 stop11h 23m
Deal found 9/6![Alaska Airlines logo]()
$205
This Alaska Airlines deal was found by Cheapflights users on 9/3. 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 10/295:07 am -
1 stop4h 49m
Thu 11/56:39 pm -
Nonstop2h 50m
Deal found 9/3![Alaska Airlines logo]()
$207
This Southwest deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:10 pm -
Nonstop2h 25m
Mon 10/265:00 pm -
Nonstop2h 35m
Deal found 9/4![Southwest logo]()
$207
This Southwest deal was found by Cheapflights users on 9/3. 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 12/13:20 pm -
1 stop4h 25m
Sun 12/62:25 pm -
Nonstop2h 45m
Deal found 9/3![Southwest logo]()
$208
Last-minute flights from Washington to San DiegoDiscover last-minute flight deals from Washington to San Diego. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Washington to San Diego. Data last updated September 8, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 9/3. 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 9/2612:24 pm -
1 stop4h 35m
Wed 9/305:54 pm -
1 stop17h 42m
Deal found 9/3![Frontier logo]()
$151
This Southwest deal was found by Cheapflights users on 9/7. 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 9/305:55 am -
2 stops5h 50m
Sat 10/34:55 pm -
Nonstop3h 05m
Deal found 9/7![Southwest logo]()
$142
This Southwest deal was found by Cheapflights users on 9/3. 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 10/18:00 am -
Nonstop2h 25m
Thu 10/87:00 pm -
1 stop4h 10m
Deal found 9/3![Southwest logo]()
$143
This CheapOair deal was found by Cheapflights users on 9/3. 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 10/112:38 pm -
1 stop11h 13m
Thu 10/88:34 pm -
1 stop15h 06m
Deal found 9/3![Frontier logo]()
$148
This Expedia deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:24 pm -
1 stop4h 35m
Mon 10/58:05 pm -
Nonstop2h 42m
Deal found 9/4![Multiple Airlines logo]()
$138
This Southwest deal was found by Cheapflights users on 9/7. 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 10/63:30 pm -
Nonstop2h 25m
Sat 10/104:55 pm -
Nonstop2h 40m
Deal found 9/7![Southwest logo]()
$137
This Alaska Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:30 am -
Nonstop2h 42m
Sat 10/246:53 am -
Nonstop2h 38m
Deal found 9/4![Alaska Airlines logo]()
$140
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:08 pm -
Nonstop2h 51m
Sun 10/186:15 am -
Nonstop3h 13m
Deal found 9/6![Alaska Airlines logo]()
$141
This Alaska Airlines deal was found by Cheapflights users on 9/3. 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 10/241:49 pm -
Nonstop2h 33m
Mon 10/266:53 am -
Nonstop2h 38m
Deal found 9/3![Alaska Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:16 pm -
2 stops36h 55m
Mon 11/28:32 pm -
1 stop14h 27m
Deal found 9/4![Frontier logo]()
$143
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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.
Mon 10/264:54 pm -
Nonstop2h 49m
Mon 11/27:45 pm -
Nonstop3h 12m
Deal found 9/7![Alaska Airlines logo]()
$145
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 10/277:07 pm -
Nonstop2h 51m
Sat 10/3110:05 am -
1 stop5h 04m
Deal found 9/7![Alaska Airlines logo]()
$150
One-way flights from Washington to San DiegoSearch for one-way flight options from Washington to San Diego. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Washington to San Diego. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/3. 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 12/55:30 pm -
Nonstop2h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Alaska Airlines logo]()
$69
This Trip.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:24 pm -
1 stop4h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$71
This Super.com deal was found by Cheapflights users on 9/3. 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 10/112:38 pm -
1 stop11h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$74
This Booking.com deal was found by Cheapflights users on 9/3. 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.
Tue 10/1311:49 am -
1 stop12h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$75
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:19 am -
Nonstop2h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Alaska Airlines logo]()
$79
This Alaska Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/62:59 pm -
Nonstop2h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Alaska Airlines logo]()
$79
This Southwest deal was found by Cheapflights users on 9/3. 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 9/285:35 am -
1 stop4h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$79
This Alaska Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:33 am -
Nonstop2h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Alaska Airlines logo]()
$79
This CheapOair deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:27 pm -
1 stop7h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/269:16 pm -
2 stops36h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$81
This Alaska Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:00 am -
Nonstop2h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Alaska Airlines logo]()
$82
This Alaska Airlines deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:59 pm -
Nonstop2h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Alaska Airlines logo]()
$82
Find flight deals from Washington to San Diego
Keep the following information in mind while searching for Washington to San Diego flight deals. Data was last updated September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $97 (Alaska Airlines) |
One-way from | $69 (Alaska Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $207 |
Good round-trip deal | $170 or less |
Good one-way deal | $98 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Washington 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 September 8, 2026.
Use the filters below to find and compare flights from Washington to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Sat 12/5
5:30 pm-8:07 pm
Nonstop2h 37m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$69
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Tue 9/29
8:30 am-11:25 am
Nonstop2h 55m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sat 1/23
7:20 am-10:15 am
Nonstop2h 55m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sat 3/6
7:59 pm-10:49 pm
Nonstop2h 50m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sun 11/22
6:00 am-8:48 am
Nonstop2h 48m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Thu 10/22
5:30 am-10:35 am
1 stop5h 05m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sat 10/10
7:59 pm-10:51 pm
Nonstop2h 52m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sun 10/25
7:04 am-10:06 am
Nonstop3h 02m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
PortlandSan Diego
PDX Portland - SAN San Diego
PDXSAN
Portland
Mon 12/7
7:20 am-1:05 pm
1 stop5h 45m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
SeattleSan Diego
SEA Seattle/Tacoma Intl - SAN San Diego
SEASAN
Seattle/Tacoma Intl
Sun 10/4
9:45 am-12:42 pm
Nonstop2h 57m
San Diego
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Washington to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Washington with our price prediction graph.
PAE-SAN
PDX-SAN
SEA-SAN
BLI-SAN
GEG-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 to San Diego
USWA-SAN
PAE-SAN
PDX-SAN
SEA-SAN
BLI-SAN
What is the cheapest month to book a flight from State of Washington to San Diego?
Currently, January is the cheapest month in which you can book a flight from State of Washington to San Diego (average of $205). Flying from State of Washington to San Diego in December is currently the most expensive (average of $324). 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 WA to SAN?
Find hourly flight availability from Washington 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 September 8, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 24% on flights from State of Washington to San Diego by exploring options for tickets in the evening.
Weekly flight availability from State of Washington to San Diego
Explore weekly flight availability from Washington to San Diego. 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 September 8, 2026.
The most flights from USWA to SAN are scheduled on a Sunday (37 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from State of Washington to San Diego?
Airfare is below average for this route at the moment.
State of Washington to San Diego flights typically cost between $160 and $301 in October.The cheapest round-trip price found within the last 5 days was $141 on Alaska Airlines (Oct 15-Oct 18).
How far ahead should I book a flight from State of Washington to San Diego?
To ensure you get the cheapest price possible for a flight from State of Washington to San Diego, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from State of Washington to San Diego?
Use this chart to determine the cheapest time to fly round-trip from Washington to San Diego. Price data was last updated on May 30, 2026.
Travelers seeking maximum savings on their State of Washington to San Diego flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Washington 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
Coronado
Poway
San Ysidro
La Mesa
Santee
Julian
Lemon Grove
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Washington and San Diego flights
Browse other Washington and San Diego flight options. Last updated on September 8, 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 September 8, 2026.
Washington to San Diego flights
Consider these flights traveling from Washington to San Diego.
Top 7 airlines flying from Washington to San Diego
Discover the top 7 airlines that operate flights from Washington 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 September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$87 | Average$223 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$112 | Average$287 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$119 | Average$269 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$119 | Average$385 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$178 | Average$384 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$187 | Average$317 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$227 | Average$495 | FlexibilityNo cancel fee | On-time71% |