$116+ 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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — IAD
May 29 — Jun 51
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 April 29, 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 April 29, 2026.
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/292:45 pm
SJC
- IAD
1 stop6h 35m
Southwest
Mon 6/14:30 pm
IAD
- SJC
1 stop9h 10m
Southwest
Deal found 4/26![Southwest logo]()
$302
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:00 pm
SJC
- IAD
1 stop10h 34m
Alaska Airlines
Sat 5/306:00 am
IAD
- SJC
1 stop9h 20m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$305
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 5/186:19 pm
SJC
- IAD
1 stop8h 09m
United Airlines
Sun 5/246:30 am
IAD
- SJC
1 stop9h 54m
United Airlines
Deal found 4/25![United Airlines logo]()
$306
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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.
Sun 5/246:30 am
SJC
- IAD
1 stop9h 32m
United Airlines
Sat 5/306:30 am
IAD
- SJC
1 stop9h 54m
United Airlines
Deal found 4/29![United Airlines logo]()
$310
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/297:10 am
SJC
- IAD
1 stop8h 33m
Delta
Fri 6/55:31 pm
IAD
- SJC
1 stop8h 24m
Delta
Deal found 4/29![Delta logo]()
$311
This CheapOair deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
Sun 5/247:06 am
SJC
- IAD
1 stop7h 36m
Alaska Airlines
Wed 5/277:37 pm
IAD
- SJC
1 stop17h 08m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$312
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/297:10 am
SJC
- IAD
1 stop8h 33m
Delta
Tue 6/28:05 am
IAD
- SJC
2 stops10h 27m
Delta
Deal found 4/29![Delta logo]()
$316
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:35 am
SJC
- IAD
1 stop10h 19m
Delta
Wed 8/195:30 pm
IAD
- SJC
1 stop8h 11m
Delta
Deal found 4/28![Delta logo]()
$322
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:12 pm
SJC
- IAD
2 stops13h 06m
Delta
Mon 8/174:00 pm
IAD
- SJC
1 stop9h 41m
Delta
Deal found 4/28![Delta logo]()
$327
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:12 pm
SJC
- IAD
2 stops13h 06m
Delta
Sat 8/227:25 am
IAD
- SJC
2 stops11h 50m
Delta
Deal found 4/28![Delta logo]()
$332
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 April 29, 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 April 29, 2026.
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/235:55 pm
SJC
- IAD
2 stops12h 53m
Delta
Sat 5/306:08 am
IAD
- SJC
1 stop7h 45m
Delta
Deal found 4/28![Delta logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 6/96:00 pm
SJC
- IAD
1 stop10h 34m
Alaska Airlines
Tue 6/167:49 pm
IAD
- SJC
1 stop16h 37m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$330
This Southwest deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 5/168:40 am
SJC
- IAD
2 stops11h 15m
Southwest
Sat 5/233:55 pm
IAD
- SJC
1 stop7h 55m
Southwest
Deal found 4/24![Southwest logo]()
$423
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 5/299:53 am
SJC
- IAD
2 stops10h 46m
Delta
Mon 6/13:08 pm
IAD
- SJC
2 stops10h 06m
Delta
Deal found 4/26![Delta logo]()
$332
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/201:13 pm
SJC
- IAD
1 stop7h 26m
Delta
Tue 5/2612:37 pm
IAD
- SJC
1 stop9h 25m
Delta
Deal found 4/27![Delta logo]()
$372
This Alaska Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 7/317:13 am
SJC
- IAD
1 stop8h 32m
Alaska Airlines
Thu 8/67:53 pm
IAD
- SJC
1 stop16h 33m
Alaska Airlines
Deal found 4/26![Alaska Airlines logo]()
$444
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 6/2211:29 am
SJC
- IAD
1 stop9h 56m
Delta
Tue 6/306:00 am
IAD
- SJC
2 stops12h 53m
Delta
Deal found 4/26![Delta logo]()
$377
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/235:55 pm
SJC
- IAD
2 stops12h 53m
Delta
Sat 7/1110:58 am
IAD
- SJC
2 stops14h 15m
Delta
Deal found 4/28![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 5/912:12 pm
SJC
- IAD
1 stop9h 39m
Delta
Sun 5/246:00 am
IAD
- SJC
2 stops9h 48m
Delta
Deal found 4/24![Delta logo]()
$383
This Delta deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 6/1112:46 pm
SJC
- IAD
1 stop8h 58m
Delta
Wed 6/176:00 am
IAD
- SJC
1 stop8h 36m
Delta
Deal found 4/25![Delta logo]()
$431
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/1211:45 am
SJC
- IAD
1 stop9h 30m
Delta
Tue 5/193:08 pm
IAD
- SJC
1 stop10h 47m
Delta
Deal found 4/28![Delta logo]()
$450
Last-minute flights from San Jose to Dulles IntlDiscover last-minute flight deals from San Jose to Dulles Intl. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from San Jose to Dulles Intl. Data last updated April 29, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 5/186:19 pm
SJC
- IAD
1 stop8h 09m
United Airlines
Sun 5/246:30 am
IAD
- SJC
1 stop9h 54m
United Airlines
Deal found 4/25![United Airlines logo]()
$306
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:00 pm
SJC
- IAD
1 stop10h 34m
Alaska Airlines
Sat 5/306:00 am
IAD
- SJC
1 stop9h 20m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$305
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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.
Sun 5/246:30 am
SJC
- IAD
1 stop9h 32m
United Airlines
Sat 5/306:30 am
IAD
- SJC
1 stop9h 54m
United Airlines
Deal found 4/29![United Airlines logo]()
$310
This CheapOair deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
Sun 5/247:06 am
SJC
- IAD
1 stop7h 36m
Alaska Airlines
Sat 5/307:37 pm
IAD
- SJC
1 stop17h 08m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$312
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2411:45 am
SJC
- IAD
1 stop9h 30m
Delta
Fri 5/293:08 pm
IAD
- SJC
1 stop10h 47m
Delta
Deal found 4/24![Delta logo]()
$322
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/268:05 pm
SJC
- IAD
2 stops12h 13m
Delta
Wed 6/37:30 am
IAD
- SJC
1 stop8h 18m
Delta
Deal found 4/28![Delta logo]()
$327
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/292:45 pm
SJC
- IAD
1 stop6h 35m
Southwest
Mon 6/14:30 pm
IAD
- SJC
1 stop9h 10m
Southwest
Deal found 4/26![Southwest logo]()
$302
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/297:10 am
SJC
- IAD
1 stop8h 33m
Delta
Fri 6/55:31 pm
IAD
- SJC
1 stop8h 24m
Delta
Deal found 4/29![Delta logo]()
$311
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/297:10 am
SJC
- IAD
1 stop8h 33m
Delta
Tue 6/28:05 am
IAD
- SJC
2 stops10h 27m
Delta
Deal found 4/29![Delta logo]()
$316
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 April 29, 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 April 29, 2026.
This CheapOair deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/82:12 pm
SJC
- IAD
1 stop15h 13m
Frontier
Deal found 4/26![Frontier logo]()
$116
This CheapOair deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/62:12 pm
SJC
- IAD
1 stop15h 00m
Frontier
Deal found 4/28![Frontier logo]()
$131
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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.
Sun 5/241:10 pm
SJC
- IAD
1 stop8h 21m
United Airlines
Deal found 4/29![United Airlines logo]()
$133
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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 5/235:55 pm
SJC
- IAD
2 stops12h 53m
Delta
Deal found 4/24![Delta logo]()
$138
This Alaska Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 7/297:13 am
SJC
- IAD
1 stop8h 32m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$143
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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.
Wed 5/277:24 pm
SJC
- IAD
2 stops10h 26m
American Airlines
Deal found 4/25![American Airlines logo]()
$145
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
Fri 6/57:24 pm
SJC
- IAD
2 stops10h 26m
American Airlines
Deal found 4/27![American Airlines logo]()
$147
This CheapOair deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:17 pm
SJC
- IAD
1 stop18h 57m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$148
This CheapOair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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.
Sun 5/242:12 pm
SJC
- IAD
1 stop15h 00m
Frontier
Deal found 4/29![Frontier logo]()
$151
This CheapOair deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/278:15 pm
SJC
- IAD
1 stop8h 19m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$153
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” 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 5/166:30 am
SJC
- IAD
1 stop9h 58m
United Airlines
Deal found 4/25![United Airlines logo]()
$166
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
Sun 8/96:37 pm
SJC
- IAD
1 stop7h 50m
United Airlines
Deal found 4/27![United Airlines logo]()
$167
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 April 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $302 (Southwest) |
One-way from | $116 (CheapOair) |
Popular in | February |
Cheapest in | April |
Average price | $337 |
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 April 29, 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
Sat 5/23
5:55 pm-9:48 am
2 stops12h 53m
Washington, D.C. Dulles Intl
Sat 5/30
6:08 am-10:53 am
1 stop7h 45m
$327
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Tue 6/9
6:00 pm-7:34 am
1 stop10h 34m
Washington, D.C. Dulles Intl
Tue 6/16
7:49 pm-9:26 am
1 stop16h 37m
$330
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Fri 5/29
9:53 am-11:39 pm
2 stops10h 46m
Washington, D.C. Dulles Intl
Mon 6/1
3:08 pm-10:14 pm
2 stops10h 06m
$332
Quickest round-trip
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Wed 5/20
1:13 pm-11:39 pm
1 stop7h 26m
Washington, D.C. Dulles Intl
Tue 5/26
12:37 pm-7:02 pm
1 stop9h 25m
$372
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Mon 6/22
11:29 am-12:25 am
1 stop9h 56m
Washington, D.C. Dulles Intl
Tue 6/30
6:00 am-3:53 pm
2 stops12h 53m
$377
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Sat 5/23
5:55 pm-9:48 am
2 stops12h 53m
Washington, D.C. Dulles Intl
Sat 7/11
10:58 am-10:13 pm
2 stops14h 15m
$379
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Sat 5/9
12:12 pm-12:51 am
1 stop9h 39m
Washington, D.C. Dulles Intl
Sun 5/24
6:00 am-12:48 pm
2 stops9h 48m
$383
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Sat 5/16
8:40 am-10:55 pm
2 stops11h 15m
Washington, D.C. Dulles Intl
Sat 5/23
3:55 pm-8:50 pm
1 stop7h 55m
$423
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Thu 6/11
12:46 pm-12:44 am
1 stop8h 58m
Washington, D.C. Dulles Intl
Wed 6/17
6:00 am-11:36 am
1 stop8h 36m
$431
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Fri 7/31
7:13 am-6:45 pm
1 stop8h 32m
Washington, D.C. Dulles Intl
Thu 8/6
7:53 pm-9:26 am
1 stop16h 33m
$444
Showing 1-10 of 22 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 April.
| 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
What is the cheapest month to book a flight from San Jose, California to Washington, D.C. Dulles Intl Airport?
Currently, April is the cheapest month in which you can book a flight from San Jose, California to Washington, D.C. Dulles Intl Airport (average of $337). Flying from San Jose, California to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $540). 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 April 29, 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.
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
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
Tysons
Owings Mills
Springfield
Arlington
Silver Spring
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Woodbridge
Hanover
Laurel
Largo
Upper Marlboro
Waldorf
Clinton
Hunt Valley
Cordova
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Other flights to Dulles Intl
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San Jose and Dulles Intl flights
Browse other San Jose and Dulles Intl flight options. Last updated on April 29, 2026.
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Top 4 airlines flying from San Jose to Dulles Intl
Discover the top 4 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 April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$246 | Average$477 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$276 | Average$401 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$276 | Average$457 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$393 | FlexibilityNo cancel fee | On-timeN/A |