$135+ Cheap flights from San Jose, CA (SJC) to Dulles Intl (IAD)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — IAD
Apr 17 — Apr 241
Round-trip
1 adult, Economy
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Cheapest flights from San Jose to Dulles IntlExplore the most affordable flight options available from San Jose to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 18, 2026.
Explore the most affordable flight options available from San Jose to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 18, 2026.
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:30 am
SJC
- IAD
1 stop6h 55m
Southwest
Tue 5/126:20 am
IAD
- SJC
1 stop7h 15m
Southwest
Deal found 3/13![Southwest logo]()
$271
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:55 am
SJC
- IAD
1 stop11h 00m
Southwest
Tue 4/216:20 am
IAD
- SJC
1 stop7h 15m
Southwest
Deal found 3/15![Southwest logo]()
$276
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:15 am
SJC
- IAD
2 stops9h 25m
Southwest
Tue 5/56:20 am
IAD
- SJC
2 stops11h 10m
Southwest
Deal found 3/13![Southwest logo]()
$281
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:55 am
SJC
- IAD
1 stop11h 00m
Southwest
Sat 4/255:50 am
IAD
- SJC
2 stops12h 20m
Southwest
Deal found 3/15![Southwest logo]()
$282
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:45 pm
SJC
- IAD
1 stop7h 42m
Delta
Sat 4/256:00 am
IAD
- SJC
1 stop9h 21m
Delta
Deal found 3/13![Delta logo]()
$291
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1511:00 pm
SJC
- IAD
1 stop7h 15m
Delta
Tue 4/215:07 pm
IAD
- SJC
2 stops9h 35m
Delta
Deal found 3/13![Delta logo]()
$296
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:45 pm
SJC
- IAD
1 stop6h 35m
Southwest
Wed 4/295:30 pm
IAD
- SJC
1 stop7h 40m
Southwest
Deal found 3/13![Southwest logo]()
$304
This CheapOair deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 5/62:51 pm
SJC
- IAD
1 stop23h 50m
Alaska Airlines
Wed 5/137:37 pm
IAD
- SJC
1 stop17h 08m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$311
This CheapOair deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:43 am
SJC
- IAD
2 stops14h 26m
Alaska Airlines
Sat 5/96:47 pm
IAD
- SJC
1 stop17h 57m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$312
This Alaska Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:43 am
SJC
- IAD
1 stop7h 58m
Alaska Airlines
Wed 4/297:10 am
IAD
- SJC
1 stop9h 40m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$314
Best flights from San Jose to Dulles IntlDiscover carefully curated flight deals from San Jose to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 18, 2026.
Discover carefully curated flight deals from San Jose to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 18, 2026.
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:35 am
SJC
- IAD
1 stop7h 30m
Southwest
Wed 4/296:20 am
IAD
- SJC
2 stops11h 10m
Southwest
Deal found 3/13![Southwest logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:43 am
SJC
- IAD
1 stop7h 58m
Alaska Airlines
Wed 4/297:10 am
IAD
- SJC
1 stop9h 40m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 3/17. 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.
Mon 4/1311:00 pm
SJC
- IAD
1 stop7h 15m
Delta
Tue 4/213:00 pm
IAD
- SJC
1 stop9h 45m
Delta
Deal found 3/17![Delta logo]()
$314
This Delta deal was found by Cheapflights users on 3/17. 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.
Mon 4/208:20 pm
SJC
- IAD
2 stops12h 12m
Delta
Wed 4/226:00 am
IAD
- SJC
1 stop9h 21m
Delta
Deal found 3/17![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/910:55 am
SJC
- IAD
2 stops9h 00m
Southwest
Tue 5/126:20 am
IAD
- SJC
2 stops11h 10m
Southwest
Deal found 3/13![Southwest logo]()
$357
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/311:45 am
SJC
- IAD
1 stop9h 28m
Delta
Tue 6/95:25 pm
IAD
- SJC
1 stop8h 28m
Delta
Deal found 3/13![Delta logo]()
$357
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/111:15 pm
SJC
- IAD
1 stop6h 40m
Southwest
Tue 4/145:30 pm
IAD
- SJC
1 stop7h 40m
Southwest
Deal found 3/13![Southwest logo]()
$386
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/311:45 am
SJC
- IAD
1 stop9h 28m
Delta
Wed 6/104:00 pm
IAD
- SJC
1 stop9h 53m
Delta
Deal found 3/13![Delta logo]()
$357
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:00 pm
SJC
- IAD
2 stops13h 18m
Delta
Sat 5/96:00 am
IAD
- SJC
2 stops12h 32m
Delta
Deal found 3/14![Delta logo]()
$367
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 7/3110:20 pm
SJC
- IAD
1 stop8h 30m
Delta
Thu 8/65:25 pm
IAD
- SJC
1 stop8h 28m
Delta
Deal found 3/16![Delta logo]()
$378
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:10 am
SJC
- IAD
1 stop8h 33m
Delta
Mon 6/85:25 pm
IAD
- SJC
1 stop8h 28m
Delta
Deal found 3/13![Delta logo]()
$378
Last-minute flights from San Jose to Dulles IntlDiscover last-minute flight deals from San Jose to Dulles Intl. Data last updated March 18, 2026 and is based on user searches.
Discover last-minute flight deals from San Jose to Dulles Intl. Data last updated March 18, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1511:00 pm
SJC
- IAD
1 stop7h 15m
Delta
Tue 4/215:07 pm
IAD
- SJC
2 stops9h 35m
Delta
Deal found 3/13![Delta logo]()
$296
This CheapOair deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:00 am
SJC
- IAD
1 stop7h 22m
Alaska Airlines
Wed 4/226:56 pm
IAD
- SJC
1 stop17h 48m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 3/17. 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 4/151:45 pm
SJC
- IAD
1 stop7h 57m
Delta
Thu 4/163:00 pm
IAD
- SJC
1 stop9h 45m
Delta
Deal found 3/17![Delta logo]()
$322
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:55 am
SJC
- IAD
1 stop11h 00m
Southwest
Tue 4/216:20 am
IAD
- SJC
1 stop7h 15m
Southwest
Deal found 3/15![Southwest logo]()
$276
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:55 am
SJC
- IAD
1 stop11h 00m
Southwest
Sat 4/255:50 am
IAD
- SJC
2 stops12h 20m
Southwest
Deal found 3/15![Southwest logo]()
$282
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:45 pm
SJC
- IAD
1 stop7h 42m
Delta
Sat 4/256:00 am
IAD
- SJC
1 stop9h 21m
Delta
Deal found 3/13![Delta logo]()
$291
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:45 pm
SJC
- IAD
1 stop6h 35m
Southwest
Wed 4/295:30 pm
IAD
- SJC
1 stop7h 40m
Southwest
Deal found 3/13![Southwest logo]()
$304
This Alaska Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:43 am
SJC
- IAD
1 stop7h 58m
Alaska Airlines
Wed 4/297:10 am
IAD
- SJC
1 stop9h 40m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:15 am
SJC
- IAD
2 stops9h 25m
Southwest
Tue 5/56:20 am
IAD
- SJC
2 stops11h 10m
Southwest
Deal found 3/13![Southwest logo]()
$281
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/299:45 am
SJC
- IAD
2 stops10h 55m
Southwest
Sun 5/34:25 pm
IAD
- SJC
1 stop9h 30m
Southwest
Deal found 3/15![Southwest logo]()
$319
One-way flights from San Jose to Dulles IntlSearch for one-way flight options from San Jose to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated March 18, 2026.
Search for one-way flight options from San Jose to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated March 18, 2026.
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:00 am
SJC
- IAD
1 stop8h 09m
American Airlines
Deal found 3/16![American Airlines logo]()
$135
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/281:45 pm
SJC
- IAD
1 stop7h 57m
Delta
Deal found 3/16![Delta logo]()
$136
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:55 am
SJC
- IAD
1 stop11h 00m
Southwest
Deal found 3/13![Southwest logo]()
$141
This Priceline deal was found by Cheapflights users on 3/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/105:57 pm
SJC
- IAD
1 stop9h 32m
Frontier
Deal found 3/17![Frontier logo]()
$145
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 5/1312:12 pm
SJC
- IAD
1 stop9h 39m
Delta
Deal found 3/16![Delta logo]()
$146
This Mytrip deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:12 pm
SJC
- IAD
1 stop15h 00m
Frontier
Deal found 3/15![Frontier logo]()
$155
This CheapOair deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 am
SJC
- IAD
1 stop7h 22m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$156
This CheapOair deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:24 am
SJC
- IAD
1 stop10h 45m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:32 pm
SJC
- IAD
2 stops25h 04m
Frontier
Deal found 3/13![Frontier logo]()
$166
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/132:45 pm
SJC
- IAD
1 stop6h 35m
Southwest
Deal found 3/13![Southwest logo]()
$169
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/910:50 am
SJC
- IAD
1 stop10h 30m
Southwest
Deal found 3/13![Southwest logo]()
$174
Find flight deals from San Jose to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) 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 March 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $271 (Southwest) |
One-way from | $135 (American Airlines) |
Popular in | February |
Cheapest in | April |
Average price | $395 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Jose 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 2,558,603 searches. Data last updated March 18, 2026.
Use the filters below to find and compare flights from San Jose to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Fri 4/24
6:35 am-5:05 pm
1 stop7h 30m
Washington, D.C. Dulles Intl
Wed 4/29
6:20 am-2:30 pm
2 stops11h 10m
$309
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Tue 4/28
6:43 am-5:41 pm
1 stop7h 58m
Washington, D.C. Dulles Intl
Wed 4/29
7:10 am-1:50 pm
1 stop9h 40m
$314
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Mon 4/13
11:00 pm-9:15 am
1 stop7h 15m
Washington, D.C. Dulles Intl
Tue 4/21
3:00 pm-9:45 pm
1 stop9h 45m
$314
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Mon 4/20
8:20 pm-11:32 am
2 stops12h 12m
Washington, D.C. Dulles Intl
Wed 4/22
6:00 am-12:21 pm
1 stop9h 21m
$319
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Sat 5/9
10:55 am-10:55 pm
2 stops9h 00m
Washington, D.C. Dulles Intl
Tue 5/12
6:20 am-2:30 pm
2 stops11h 10m
$357
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Wed 6/3
11:45 am-12:13 am
1 stop9h 28m
Washington, D.C. Dulles Intl
Tue 6/9
5:25 pm-10:53 pm
1 stop8h 28m
$357
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Wed 6/3
11:45 am-12:13 am
1 stop9h 28m
Washington, D.C. Dulles Intl
Wed 6/10
4:00 pm-10:53 pm
1 stop9h 53m
$357
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Fri 5/1
6:00 pm-10:18 am
2 stops13h 18m
Washington, D.C. Dulles Intl
Sat 5/9
6:00 am-3:32 pm
2 stops12h 32m
$367
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Fri 7/31
10:20 pm-9:50 am
1 stop8h 30m
Washington, D.C. Dulles Intl
Thu 8/6
5:25 pm-10:53 pm
1 stop8h 28m
$378
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Tue 6/2
7:10 am-6:43 pm
1 stop8h 33m
Washington, D.C. Dulles Intl
Mon 6/8
5:25 pm-10:53 pm
1 stop8h 28m
$378
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from San Jose 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 Jose to Dulles Intl in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Jose, California-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 Jose, California-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 Jose, California-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 Jose, California-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 Jose, California-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 Jose to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from San Jose with our price prediction graph.
SJC-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 Jose to Washington, D.C. Dulles Intl Airport
How far ahead should I book a flight from San Jose, California to Washington, D.C. Dulles Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from San Jose to Dulles Intl. Price data was last updated on March 13, 2026.
The price you pay for your flight from San Jose, California to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 15 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Jose, California to Washington, D.C. Dulles Intl Airport?
Currently, May is the cheapest month in which you can book a flight from San Jose, California to Washington, D.C. Dulles Intl Airport (average of $118). Flying from San Jose, California to Washington, D.C. Dulles Intl Airport in September is currently the most expensive (average of $262). 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.
How much does it cost to fly round-trip from San Jose, California to Washington, D.C. Dulles Intl Airport?
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 March 18, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from San Jose to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from San Jose 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
Woodbridge
Tysons
Owings Mills
Arlington
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park
Cordova
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San Jose and Dulles Intl flights
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Top 5 airlines flying from San Jose to Dulles Intl
Discover the top 5 airlines that operate flights from San Jose 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 2,558,603 searches. Data last updated March 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$156 | Average$293 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$216 | Average$377 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$276 | Average$402 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$276 | Average$417 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$377 | FlexibilityNo cancel fee | On-timeN/A |