$185+ Cheap flights from San Francisco (SFO) to Dulles Intl (IAD)
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 12/30. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — IAD
Dec 10 — Dec 171
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Dulles Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from San Francisco to Washington, D.C. Dulles Intl are usually found in February or January, booked 75 days in advance, depart on a Wednesday or Thursday and return on a Thursday
Cheap flight deals from San Francisco to Dulles Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Francisco to Dulles IntlExplore the most affordable flight options available from San Francisco to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
Explore the most affordable flight options available from San Francisco to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2026.
This Frontier deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/244:11 pm -
1 stop10h 56m
Fri 1/18:51 pm -
1 stop13h 48m
Deal found 11/9![Frontier logo]()
$399
This Delta deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/410:41 am -
2 stops9h 42m
Mon 12/73:00 pm -
2 stops11h 43m
Deal found 11/10![Delta logo]()
$403
This Mytrip deal was found by Cheapflights users on 11/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/179:46 pm -
1 stop29h 21m
Sat 12/1910:59 pm -
2 stops15h 45m
Deal found 11/6![Frontier logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/411:06 pm -
1 stop12h 43m
Sun 12/69:23 pm -
2 stops17h 03m
Deal found 11/6![Frontier logo]()
$405
This Kiwi.com deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1411:14 pm -
1 stop8h 57m
Tue 12/228:51 pm -
1 stop13h 06m
Deal found 11/9![Frontier logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Fri 11/276:30 pm -
1 stop7h 40m
Fri 12/410:33 pm -
2 stops24h 04m
Deal found 11/5![Frontier logo]()
$407
This Frontier deal was found by Cheapflights users on 11/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:28 pm -
1 stop9h 39m
Fri 1/18:51 pm -
1 stop13h 48m
Deal found 11/7![Frontier logo]()
$408
This CheapOair deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/92:22 pm -
2 stops21h 27m
Sun 12/1310:35 pm -
1 stop20h 03m
Deal found 11/9![Frontier logo]()
$409
This Cheapflightsfares deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:28 pm -
1 stop9h 39m
Sat 1/29:10 pm -
1 stop13h 29m
Deal found 11/9![Frontier logo]()
$410
This Cheapflightsfares deal was found by Cheapflights users on 11/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1712:53 am -
1 stop11h 20m
Thu 12/248:51 pm -
1 stop18h 53m
Deal found 11/7![Frontier logo]()
$411
This Orbitz deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:26 pm -
1 stop12h 37m
Tue 12/16:40 am -
1 stop11h 54m
Deal found 11/9![Frontier logo]()
$412
This Alaska Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:00 am -
1 stop8h 39m
Tue 1/56:53 pm -
2 stops23h 17m
Deal found 11/9![Alaska Airlines logo]()
$413
Best flights from San Francisco to Dulles IntlDiscover carefully curated flight deals from San Francisco to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
Discover carefully curated flight deals from San Francisco to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 10, 2026.
This Alaska Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/244:12 pm -
1 stop22h 39m
Tue 1/56:53 pm -
2 stops23h 17m
Deal found 11/8![Alaska Airlines logo]()
$440
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/88:10 am -
Nonstop4h 58m
Fri 12/118:15 am -
Nonstop6h 05m
Deal found 11/6![United Airlines logo]()
$507
This Alaska Airlines deal was found by Cheapflights users on 11/7. 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 12/256:00 am -
1 stop8h 51m
Tue 1/56:53 pm -
1 stop16h 59m
Deal found 11/7![Alaska Airlines logo]()
$480
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/810:55 pm -
Nonstop5h 30m
Sun 5/98:25 am -
Nonstop5h 55m
Deal found 11/6![United Airlines logo]()
$522
This United Airlines deal was found by Cheapflights users on 11/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/219:25 pm -
Nonstop5h 11m
Thu 12/317:39 pm -
Nonstop6h 13m
Deal found 11/5![United Airlines logo]()
$617
This United Airlines deal was found by Cheapflights users on 11/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/178:13 am -
Nonstop4h 56m
Fri 12/256:00 am -
Nonstop6h 11m
Deal found 11/5![United Airlines logo]()
$617
This United Airlines deal was found by Cheapflights users on 11/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:20 pm -
Nonstop5h 03m
Tue 12/16:15 am -
Nonstop6h 07m
Deal found 11/7![United Airlines logo]()
$652
This United Airlines deal was found by Cheapflights users on 11/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/229:25 pm -
Nonstop5h 11m
Thu 12/318:15 am -
Nonstop5h 56m
Deal found 11/5![United Airlines logo]()
$657
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/271:50 pm -
Nonstop5h 06m
Tue 12/18:15 am -
Nonstop6h 05m
Deal found 11/9![United Airlines logo]()
$672
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/48:13 am -
Nonstop4h 56m
Thu 1/78:15 am -
Nonstop6h 09m
Deal found 11/6![United Airlines logo]()
$677
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/17:00 am -
Nonstop5h 12m
Mon 1/48:15 am -
Nonstop5h 56m
Deal found 11/9![United Airlines logo]()
$677
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/48:13 am -
Nonstop4h 56m
Mon 1/410:13 pm -
Nonstop6h 17m
Deal found 11/9![United Airlines logo]()
$697
Last-minute flights from San Francisco to Dulles IntlDiscover last-minute flight deals from San Francisco to Dulles Intl. Data last updated November 10, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Dulles Intl. Data last updated November 10, 2026 and is based on user searches.
This Orbitz deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2511:26 pm -
1 stop12h 37m
Tue 12/16:40 am -
1 stop11h 54m
Deal found 11/9![Frontier logo]()
$412
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Fri 11/276:30 pm -
1 stop7h 40m
Fri 12/410:33 pm -
2 stops24h 04m
Deal found 11/5![Frontier logo]()
$407
This Delta deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/410:41 am -
2 stops9h 42m
Mon 12/73:00 pm -
2 stops11h 43m
Deal found 11/10![Delta logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/411:06 pm -
1 stop12h 43m
Sun 12/69:23 pm -
2 stops17h 03m
Deal found 11/6![Frontier logo]()
$405
This CheapOair deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/92:22 pm -
2 stops21h 27m
Sun 12/1310:35 pm -
1 stop20h 03m
Deal found 11/9![Frontier logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1411:14 pm -
1 stop8h 57m
Tue 12/228:51 pm -
1 stop13h 06m
Deal found 11/9![Frontier logo]()
$406
This Alaska Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:00 am -
1 stop8h 39m
Tue 1/56:53 pm -
2 stops23h 17m
Deal found 11/9![Alaska Airlines logo]()
$413
This Mytrip deal was found by Cheapflights users on 11/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/179:46 pm -
1 stop29h 21m
Sat 12/1910:59 pm -
2 stops15h 45m
Deal found 11/6![Frontier logo]()
$404
This Cheapflightsfares deal was found by Cheapflights users on 11/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1712:53 am -
1 stop11h 20m
Thu 12/248:51 pm -
1 stop18h 53m
Deal found 11/7![Frontier logo]()
$411
This Frontier deal was found by Cheapflights users on 11/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:28 pm -
1 stop9h 39m
Fri 1/18:51 pm -
1 stop13h 48m
Deal found 11/7![Frontier logo]()
$408
This Cheapflightsfares deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:28 pm -
1 stop9h 39m
Sat 1/29:10 pm -
1 stop13h 29m
Deal found 11/9![Frontier logo]()
$410
This Frontier deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/244:11 pm -
1 stop10h 56m
Thu 12/318:51 pm -
1 stop13h 13m
Deal found 11/9![Frontier logo]()
$399
One-way flights from San Francisco to Dulles IntlSearch for one-way flight options from San Francisco to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
Search for one-way flight options from San Francisco to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
This Frontier deal was found by Cheapflights users on 11/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3012:53 am -
1 stop11h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:46 pm -
2 stops43h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:30 am -
2 stops24h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1110:11 am -
2 stops25h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1311:14 pm -
1 stop12h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Wed 11/2511:26 pm -
1 stop9h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/5![Frontier logo]()
$190
This Super.com deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/711:14 pm -
1 stop8h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/311:02 pm -
1 stop12h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/216:15 am -
2 stops11h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Frontier logo]()
$193
This Mytrip deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/49:31 pm -
2 stops19h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Frontier logo]()
$194
Find flight deals from San Francisco to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Dulles Intl (IAD). 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 November 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $399 (Frontier) |
One-way from | $185 (Frontier) |
Popular in | November |
Cheapest in | February |
Average price | $663 |
Good round-trip deal | $588 or less |
Good one-way deal | $314 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Dulles Intl 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 November 10, 2026.
Use the filters below to find and compare flights from San Francisco to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoWashington, D.C.
SFO San Francisco - IAD Washington, D.C. Dulles Intl
SFOIAD
San Francisco
Tue 1/5
6:00 am-4:45 pm
1 stop7h 45m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$234
San FranciscoWashington, D.C.
SFO San Francisco - IAD Washington, D.C. Dulles Intl
SFOIAD
San Francisco
Tue 1/12
10:50 am-7:05 pm
Nonstop5h 15m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$244
San FranciscoWashington, D.C.
SFO San Francisco - IAD Washington, D.C. Dulles Intl
SFOIAD
San Francisco
Fri 12/25
6:00 am-5:51 pm
1 stop8h 51m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$254
San FranciscoWashington, D.C.
SFO San Francisco - IAD Washington, D.C. Dulles Intl
SFOIAD
San Francisco
Mon 1/4
10:21 am-11:50 pm
1 stop10h 29m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$254
San FranciscoWashington, D.C.
SFO San Francisco - IAD Washington, D.C. Dulles Intl
SFOIAD
San Francisco
Sun 12/20
4:49 pm-12:59 am
Nonstop5h 10m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$264
San FranciscoWashington, D.C.
SFO San Francisco - IAD Washington, D.C. Dulles Intl
SFOIAD
San Francisco
Thu 1/21
12:45 pm-8:55 pm
Nonstop5h 10m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$264
San FranciscoWashington, D.C.
SFO San Francisco - IAD Washington, D.C. Dulles Intl
SFOIAD
San Francisco
Mon 1/11
1:50 pm-9:59 pm
Nonstop5h 09m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$264
Quickest round-trip
San FranciscoWashington, D.C.
SFO San Francisco - IAD Washington, D.C. Dulles Intl
SFOIAD
San Francisco
Mon 1/18
6:01 am-2:08 pm
Nonstop5h 07m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$264
San FranciscoWashington, D.C.
SFO San Francisco - IAD Washington, D.C. Dulles Intl
SFOIAD
San Francisco
Sat 4/10
10:45 pm-10:13 am
1 stop8h 28m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$274
San FranciscoWashington, D.C.
SFO San Francisco - IAD Washington, D.C. Dulles Intl
SFOIAD
San Francisco
Mon 1/4
10:50 pm-7:00 am
Nonstop5h 10m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$284
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from San Francisco to Dulles Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Dulles Intl in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Francisco-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Francisco to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from San Francisco with our price prediction graph.
SFO-IAD
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 Francisco to Washington, D.C. Dulles Intl Airport
Prices
Airlines
How far ahead should I book a flight from San Francisco to Washington, D.C. Dulles Intl Airport?
Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from San Francisco to Washington, D.C. Dulles Intl Airport?
Currently, February is the cheapest month in which you can book a flight from San Francisco to Washington, D.C. Dulles Intl Airport (average of $394). Flying from San Francisco to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $663). 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 SFO to IAD?
Find hourly flight availability from San Francisco to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 10, 2026.
When flying from San Francisco to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 32% versus a flight in the morning.
What is the cheapest day to fly from San Francisco to Washington, D.C. Dulles Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from San Francisco to Dulles Intl. Price data was last updated on November 7, 2026.
Travelers seeking maximum savings on their San Francisco to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for San Francisco to Washington, D.C. Dulles Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your San Francisco to Washington, D.C. Dulles Intl Airport trip
Our travel experts
Reviews of airlines servicing Dulles Intl
Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated November 10, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from San Francisco to Washington, D.C. Dulles Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Overall
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Washington, D.C. Dulles Intl Airport?
Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locationsAlexandria
Chantilly
Woodbridge
Arlington
Sterling
Lanham
Reston
Herndon
Hyattsville
Springfield
Fairfax
Fredericksburg
Falls Church
Rockville
Towson
Silver Spring
Oxon Hill
Laurel
Hunt Valley
Clinton
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Other flights to Dulles Intl
Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 10, 2026.
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San Francisco and Dulles Intl flights
Browse other San Francisco and Dulles Intl flight options. Last updated on November 10, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on November 10, 2026.
Popular flight searches
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Top 4 airlines flying from San Francisco to Dulles Intl
Discover the top 4 airlines that operate flights from San Francisco to Dulles Intl. 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 November 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$128 | Average$334 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$185 | Average$363 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$315 | Average$578 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$357 | Average$542 | FlexibilityNo cancel fee | On-time71% |