$194+ Cheap flights from Santa Rosa (STS) to Washington, D.C. (WAS)
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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
STS — WAS
Sep 21 — Sep 281
Round-trip
1 adult, Economy
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Find cheap flights from Santa Rosa to Washington, D.C. 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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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 Santa Rosa to Washington, D.C.
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Cheapest flights from Santa Rosa to Washington, D.C.Explore the most affordable flight options available from Santa Rosa to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2026.
Explore the most affordable flight options available from Santa Rosa to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2026.
This Southwest deal was found by Cheapflights users on 8/21. 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.
Thu 9/106:05 am -
1 stop14h 20m
Sat 9/122:20 pm -
1 stop8h 35m
Deal found 8/21![Southwest logo]()
$402
This Alaska Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/145:34 pm -
1 stop9h 06m
Thu 9/177:47 pm -
1 stop17h 07m
Deal found 8/17![Alaska Airlines logo]()
$423
This Expedia deal was found by Cheapflights users on 8/21. 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.
Thu 9/107:10 am -
1 stop9h 50m
Sat 9/1210:59 am -
1 stop25h 55m
Deal found 8/21![Alaska Airlines logo]()
$423
This Alaska Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 10/215:06 pm -
1 stop9h 14m
Sat 10/247:02 am -
1 stop9h 04m
Deal found 8/17![Alaska Airlines logo]()
$423
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Wed 9/166:16 am -
2 stops20h 24m
Thu 9/177:47 pm -
1 stop17h 07m
Deal found 8/18![Alaska Airlines logo]()
$428
This Southwest deal was found by Cheapflights users on 8/21. 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.
Thu 9/106:05 am -
2 stops11h 50m
Sat 9/127:00 am -
1 stop8h 05m
Deal found 8/21![Southwest logo]()
$428
This Delta deal was found by Cheapflights users on 8/19. 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.
Wed 11/44:49 pm -
1 stop9h 56m
Sat 12/56:00 am -
2 stops13h 06m
Deal found 8/19![Delta logo]()
$428
This Southwest deal was found by Cheapflights users on 8/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:45 am -
2 stops12h 00m
Sat 12/510:10 am -
2 stops13h 15m
Deal found 8/19![Southwest logo]()
$433
This Expedia deal was found by Cheapflights users on 8/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:34 pm -
1 stop9h 06m
Fri 9/187:47 pm -
1 stop17h 07m
Deal found 8/18![Alaska Airlines logo]()
$441
This Expedia deal was found by Cheapflights users on 8/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:34 pm -
1 stop9h 56m
Fri 9/187:15 pm -
1 stop20h 31m
Deal found 8/18![Alaska Airlines logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 10/206:19 am -
1 stop11h 41m
Sat 10/2410:59 am -
1 stop11h 51m
Deal found 8/18![Alaska Airlines logo]()
$443
This Expedia deal was found by Cheapflights users on 8/21. 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.
Thu 9/106:16 am -
1 stop8h 58m
Sat 9/127:00 am -
2 stops17h 35m
Deal found 8/21![Alaska Airlines logo]()
$458
Best flights from Santa Rosa to Washington, D.C.Discover carefully curated flight deals from Santa Rosa to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
Discover carefully curated flight deals from Santa Rosa to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 10/176:19 am -
1 stop8h 31m
Tue 10/207:24 pm -
1 stop27h 26m
Deal found 8/17![Alaska Airlines logo]()
$423
This Southwest deal was found by Cheapflights users on 8/18. 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.
Sun 11/86:05 am -
2 stops11h 50m
Fri 11/131:35 pm -
2 stops12h 05m
Deal found 8/18![Southwest logo]()
$514
This Alaska Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/145:34 pm -
1 stop9h 06m
Thu 9/177:47 pm -
1 stop17h 07m
Deal found 8/17![Alaska Airlines logo]()
$423
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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.
Thu 9/175:34 pm -
1 stop9h 06m
Sat 9/197:00 am -
1 stop8h 46m
Deal found 8/20![Alaska Airlines logo]()
$423
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Wed 10/215:06 pm -
1 stop9h 14m
Sat 10/247:02 am -
1 stop9h 04m
Deal found 8/18![Alaska Airlines logo]()
$423
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Wed 9/166:16 am -
2 stops20h 24m
Thu 9/177:47 pm -
1 stop17h 07m
Deal found 8/18![Alaska Airlines logo]()
$428
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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 1/276:30 pm -
1 stop22h 30m
Sat 1/309:30 am -
1 stop12h 01m
Deal found 8/20![Alaska Airlines logo]()
$443
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 10/206:19 am -
1 stop11h 41m
Sat 10/2410:59 am -
1 stop11h 51m
Deal found 8/18![Alaska Airlines logo]()
$443
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:19 am -
1 stop8h 31m
Fri 10/167:24 pm -
1 stop17h 35m
Deal found 8/21![Alaska Airlines logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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.
Thu 9/106:16 am -
1 stop8h 58m
Sun 9/137:47 pm -
1 stop17h 07m
Deal found 8/20![Alaska Airlines logo]()
$473
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/85:06 pm -
1 stop9h 14m
Wed 10/147:02 am -
1 stop9h 04m
Deal found 8/19![Alaska Airlines logo]()
$478
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/276:34 am -
1 stop8h 16m
Sat 1/306:53 pm -
1 stop31h 04m
Deal found 8/21![Alaska Airlines logo]()
$483
This Alaska Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:34 pm -
1 stop9h 56m
Thu 9/174:43 pm -
2 stops31h 48m
Deal found 8/17![Alaska Airlines logo]()
$498
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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.
Thu 9/107:10 am -
1 stop9h 50m
Mon 9/149:30 am -
1 stop28h 51m
Deal found 8/20![Alaska Airlines logo]()
$518
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:34 pm -
1 stop9h 56m
Mon 9/214:43 pm -
1 stop19h 32m
Deal found 8/21![Alaska Airlines logo]()
$540
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:34 pm -
1 stop9h 56m
Mon 9/214:43 pm -
1 stop19h 32m
Deal found 8/21![Alaska Airlines logo]()
$571
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Wed 9/210:00 am -
2 stops17h 30m
Sun 9/67:50 am -
1 stop17h 09m
Deal found 8/18![Alaska Airlines logo]()
$581
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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.
Mon 11/234:43 pm -
1 stop9h 40m
Fri 11/277:02 am -
1 stop8h 55m
Deal found 8/20![Alaska Airlines logo]()
$596
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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.
Sun 11/224:43 pm -
1 stop9h 40m
Fri 11/277:02 am -
1 stop8h 55m
Deal found 8/20![Alaska Airlines logo]()
$604
Last-minute flights from Santa Rosa to Washington, D.C.Discover last-minute flight deals from Santa Rosa to Washington, D.C.. Data last updated August 22, 2026 and is based on user searches.
Discover last-minute flight deals from Santa Rosa to Washington, D.C.. Data last updated August 22, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/21. 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.
Thu 9/106:05 am -
2 stops10h 30m
Sat 9/122:20 pm -
1 stop8h 35m
Deal found 8/21![Southwest logo]()
$402
This Expedia deal was found by Cheapflights users on 8/21. 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.
Thu 9/107:10 am -
1 stop9h 50m
Sat 9/1210:59 am -
1 stop25h 55m
Deal found 8/21![Alaska Airlines logo]()
$423
This Southwest deal was found by Cheapflights users on 8/21. 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.
Thu 9/106:05 am -
2 stops11h 50m
Sat 9/127:00 am -
1 stop8h 05m
Deal found 8/21![Southwest logo]()
$428
This Expedia deal was found by Cheapflights users on 8/21. 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.
Thu 9/106:16 am -
1 stop8h 58m
Sat 9/127:00 am -
2 stops17h 35m
Deal found 8/21![Alaska Airlines logo]()
$458
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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.
Thu 9/106:16 am -
1 stop8h 58m
Mon 9/147:47 pm -
1 stop17h 07m
Deal found 8/20![Alaska Airlines logo]()
$463
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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.
Thu 9/106:16 am -
1 stop8h 58m
Sun 9/137:47 pm -
1 stop17h 07m
Deal found 8/20![Alaska Airlines logo]()
$473
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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.
Fri 9/117:10 am -
1 stop9h 50m
Sat 9/129:30 am -
1 stop15h 05m
Deal found 8/20![Alaska Airlines logo]()
$473
This Alaska Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/145:34 pm -
1 stop9h 06m
Thu 9/177:47 pm -
1 stop17h 07m
Deal found 8/17![Alaska Airlines logo]()
$423
This Expedia deal was found by Cheapflights users on 8/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:34 pm -
1 stop9h 06m
Fri 9/187:47 pm -
1 stop17h 07m
Deal found 8/18![Alaska Airlines logo]()
$441
This Expedia deal was found by Cheapflights users on 8/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:34 pm -
1 stop9h 56m
Fri 9/187:15 pm -
1 stop20h 31m
Deal found 8/18![Alaska Airlines logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Wed 9/166:16 am -
2 stops20h 24m
Thu 9/177:47 pm -
1 stop17h 07m
Deal found 8/18![Alaska Airlines logo]()
$428
This Expedia deal was found by Cheapflights users on 8/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/172:09 pm -
2 stops22h 31m
Sat 9/194:43 pm -
2 stops28h 24m
Deal found 8/20![Alaska Airlines logo]()
$493
One-way flights from Santa Rosa to Washington, D.C.Search for one-way flight options from Santa Rosa to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
Search for one-way flight options from Santa Rosa to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:34 pm -
1 stop9h 56m
Deal found 8/19![Alaska Airlines logo]()
$194
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:34 pm -
1 stop9h 56m
Deal found 8/21![Alaska Airlines logo]()
$199
This Southwest deal was found by Cheapflights users on 8/21. 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.
Mon 9/282:55 pm -
1 stop12h 35m
Deal found 8/21![Southwest logo]()
$204
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Sat 9/55:34 pm -
1 stop9h 06m
Deal found 8/18![Alaska Airlines logo]()
$212
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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.
Sat 9/57:10 am -
1 stop9h 50m
Deal found 8/18![Alaska Airlines logo]()
$212
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:34 pm -
1 stop9h 56m
Deal found 8/19![Alaska Airlines logo]()
$212
This Delta deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 11/1111:29 am -
2 stops10h 10m
Deal found 8/17![Delta logo]()
$217
This Delta deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 11/1111:29 am -
2 stops9h 10m
Deal found 8/17![Delta logo]()
$217
This Booking.com deal was found by Cheapflights users on 8/21. 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.
Mon 10/127:00 am -
1 stop19h 20m
Deal found 8/21![Alaska Airlines logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 8/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/281:40 pm -
2 stops31h 19m
Deal found 8/21![Alaska Airlines logo]()
$223
This Southwest deal was found by Cheapflights users on 8/21. 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.
Mon 9/284:40 pm -
2 stops13h 15m
Deal found 8/21![Southwest logo]()
$223
This Delta deal was found by Cheapflights users on 8/20. 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.
Thu 10/84:49 pm -
1 stop9h 56m
Deal found 8/20![Delta logo]()
$230
Find flight deals from Santa Rosa to Washington, D.C.
Discover tips and strategies to find the most affordable flight options for your journey from Santa Rosa (STS) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $402 (Southwest) |
One-way from | $194 (Alaska Airlines) |
Popular in | June |
Cheapest in | January |
Average price | $469 |
Cheapflights Fare Finder
Customize your flight search to find flights from Santa Rosa to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 22, 2026.
Use the filters below to find and compare flights from Santa Rosa to Washington, D.C. that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Santa RosaWashington, D.C.
STS Santa Rosa Sonoma County - IAD Washington, D.C. Dulles Intl
STSIAD
Santa Rosa Sonoma County
Sat 10/17
6:19 am-5:50 pm
1 stop8h 31m
Washington, D.C. Dulles Intl
Tue 10/20
7:24 pm-7:50 pm
1 stop27h 26m
$423
Santa RosaWashington, D.C.
STS Santa Rosa Sonoma County - IAD Washington, D.C. Dulles Intl
STSIAD
Santa Rosa Sonoma County
Mon 9/14
5:34 pm-5:40 am
1 stop9h 06m
Washington, D.C. Dulles Intl
Thu 9/17
7:47 pm-9:54 am
1 stop17h 07m
$423
Quickest round-trip
Santa RosaWashington, D.C.
STS Santa Rosa Sonoma County - IAD Washington, D.C. Dulles Intl
STSIAD
Santa Rosa Sonoma County
Thu 9/17
5:34 pm-5:40 am
1 stop9h 06m
Washington, D.C. Dulles Intl
Sat 9/19
7:00 am-12:46 pm
1 stop8h 46m
$423
Santa RosaBaltimore
STS Santa Rosa Sonoma County - BWI Baltimore/Washington
STSBWI
Santa Rosa Sonoma County
Wed 10/21
5:06 pm-5:20 am
1 stop9h 14m
Baltimore/Washington
Sat 10/24
7:02 am-1:06 pm
1 stop9h 04m
$423
Santa RosaWashington, D.C.
STS Santa Rosa Sonoma County - IAD Washington, D.C. Dulles Intl
STSIAD
Santa Rosa Sonoma County
Wed 9/16
6:16 am-5:40 am
2 stops20h 24m
Washington, D.C. Dulles Intl
Thu 9/17
7:47 pm-9:54 am
1 stop17h 07m
$428
Santa RosaWashington, D.C.
STS Santa Rosa Sonoma County - DCA Washington, D.C. Reagan-National
STSDCA
Santa Rosa Sonoma County
Wed 1/27
6:30 pm-8:00 pm
1 stop22h 30m
Washington, D.C. Reagan-National
Sat 1/30
9:30 am-6:31 pm
1 stop12h 01m
$443
Santa RosaWashington, D.C.
STS Santa Rosa Sonoma County - DCA Washington, D.C. Reagan-National
STSDCA
Santa Rosa Sonoma County
Tue 10/20
6:19 am-9:00 pm
1 stop11h 41m
Washington, D.C. Reagan-National
Sat 10/24
10:59 am-7:50 pm
1 stop11h 51m
$443
Santa RosaWashington, D.C.
STS Santa Rosa Sonoma County - IAD Washington, D.C. Dulles Intl
STSIAD
Santa Rosa Sonoma County
Fri 10/16
6:19 am-5:50 pm
1 stop8h 31m
Washington, D.C. Dulles Intl
Fri 10/16
7:24 pm-9:59 am
1 stop17h 35m
$459
Santa RosaWashington, D.C.
STS Santa Rosa Sonoma County - IAD Washington, D.C. Dulles Intl
STSIAD
Santa Rosa Sonoma County
Thu 9/10
6:16 am-6:14 pm
1 stop8h 58m
Washington, D.C. Dulles Intl
Sun 9/13
7:47 pm-9:54 am
1 stop17h 07m
$473
Santa RosaBaltimore
STS Santa Rosa Sonoma County - BWI Baltimore/Washington
STSBWI
Santa Rosa Sonoma County
Thu 10/8
5:06 pm-5:20 am
1 stop9h 14m
Baltimore/Washington
Wed 10/14
7:02 am-1:06 pm
1 stop9h 04m
$478
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STS-WAS
STS-BWI
STS-IAD
STS-DCA
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STS-WAS
STS-BWI
STS-IAD
STS-DCA
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$296 | Average$546 | FlexibilityNo cancel fee | On-time75% |