$146+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — IAD
Aug 28 — Sep 41
Round-trip
1 adult, Economy
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Find cheap flights from San Jose to Dulles Intl with Cheapflights
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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 July 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 July 29, 2026.
This Trip.com deal was found by Cheapflights users on 7/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:12 pm
SJC
- IAD
1 stop15h 08m
Frontier
Mon 8/248:59 am
IAD
- SJC
1 stop7h 23m
Frontier
Deal found 7/24![Frontier logo]()
$295
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/266:37 pm
SJC
- IAD
1 stop7h 48m
United Airlines
Wed 9/26:15 am
IAD
- SJC
1 stop8h 31m
United Airlines
Deal found 7/27![United Airlines logo]()
$300
This Delta deal was found by Cheapflights users on 7/28. 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 8/186:10 am
SJC
- IAD
1 stop8h 59m
Delta
Sun 8/236:00 am
IAD
- SJC
1 stop9h 27m
Delta
Deal found 7/28![Delta logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:12 pm
SJC
- IAD
1 stop14h 52m
Frontier
Thu 8/208:59 am
IAD
- SJC
1 stop31h 23m
Frontier
Deal found 7/28![Frontier logo]()
$308
This Delta deal was found by Cheapflights users on 7/26. 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.
Wed 8/126:10 am
SJC
- IAD
1 stop8h 59m
Delta
Tue 8/187:10 am
IAD
- SJC
1 stop9h 55m
Delta
Deal found 7/26![Delta logo]()
$310
This Delta deal was found by Cheapflights users on 7/26. 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.
Sat 10/312:51 pm
SJC
- IAD
1 stop8h 50m
Delta
Mon 10/53:15 pm
IAD
- SJC
1 stop9h 07m
Delta
Deal found 7/26![Delta logo]()
$311
This Expedia deal was found by Cheapflights users on 7/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:38 pm
SJC
- IAD
1 stop13h 42m
Multiple Airlines
Wed 9/307:00 am
IAD
- SJC
1 stop9h 17m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 7/24. 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.
Wed 9/212:40 pm
SJC
- IAD
1 stop8h 54m
Delta
Sat 9/52:54 pm
IAD
- SJC
1 stop9h 47m
Delta
Deal found 7/24![Delta logo]()
$315
This Delta deal was found by Cheapflights users on 7/24. 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.
Tue 8/116:40 am
SJC
- IAD
1 stop10h 25m
Delta
Thu 8/206:00 am
IAD
- SJC
1 stop8h 22m
Delta
Deal found 7/24![Delta logo]()
$320
This CheapOair deal was found by Cheapflights users on 7/28. 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 8/172:12 pm
SJC
- IAD
1 stop14h 52m
Frontier
Mon 8/248:59 am
IAD
- SJC
1 stop7h 23m
Frontier
Deal found 7/28![Frontier logo]()
$321
This Expedia deal was found by Cheapflights users on 7/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:12 pm
SJC
- IAD
1 stop15h 08m
Frontier
Sun 8/29:50 am
IAD
- SJC
1 stop30h 27m
Frontier
Deal found 7/26![Frontier logo]()
$322
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 July 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 July 29, 2026.
This Delta deal was found by Cheapflights users on 7/26. 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.
Tue 8/2512:40 pm
SJC
- IAD
1 stop8h 54m
Delta
Tue 9/13:03 pm
IAD
- SJC
1 stop9h 38m
Delta
Deal found 7/26![Delta logo]()
$305
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:20 am
SJC
- IAD
1 stop8h 17m
United Airlines
Wed 9/96:15 am
IAD
- SJC
1 stop8h 31m
United Airlines
Deal found 7/28![United Airlines logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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.
Tue 9/11:44 pm
SJC
- IAD
1 stop12h 56m
Alaska Airlines
Wed 9/97:35 pm
IAD
- SJC
1 stop16h 48m
Alaska Airlines
Deal found 7/27![Alaska Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 7/26. 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.
Thu 10/110:50 pm
SJC
- IAD
1 stop7h 19m
Delta
Tue 10/66:13 am
IAD
- SJC
1 stop9h 34m
Delta
Deal found 7/26![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 7/26. 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.
Sat 10/312:51 pm
SJC
- IAD
1 stop8h 50m
Delta
Tue 10/66:13 am
IAD
- SJC
1 stop9h 34m
Delta
Deal found 7/26![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Fri 8/212:10 pm
SJC
- IAD
1 stop7h 34m
United Airlines
Sun 8/236:15 am
IAD
- SJC
1 stop8h 31m
United Airlines
Deal found 7/25![United Airlines logo]()
$370
This Alaska Airlines deal was found by Cheapflights users on 7/26. 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.
Sat 10/36:33 am
SJC
- IAD
1 stop8h 17m
Alaska Airlines
Tue 10/67:02 am
IAD
- SJC
2 stops34h 53m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 7/28. 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.
Fri 8/141:46 pm
SJC
- IAD
1 stop6h 53m
Delta
Sun 8/167:00 am
IAD
- SJC
1 stop8h 54m
Delta
Deal found 7/28![Delta logo]()
$315
This Delta deal was found by Cheapflights users on 7/25. 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.
Wed 8/266:10 am
SJC
- IAD
1 stop8h 59m
Delta
Wed 9/93:15 pm
IAD
- SJC
1 stop9h 07m
Delta
Deal found 7/25![Delta logo]()
$315
This Delta deal was found by Cheapflights users on 7/24. 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.
Wed 11/1110:20 pm
SJC
- IAD
1 stop7h 51m
Delta
Sun 11/157:00 am
IAD
- SJC
1 stop7h 56m
Delta
Deal found 7/24![Delta logo]()
$315
This Delta deal was found by Cheapflights users on 7/26. 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.
Sat 8/226:40 am
SJC
- IAD
1 stop10h 25m
Delta
Mon 8/245:47 pm
IAD
- SJC
1 stop8h 11m
Delta
Deal found 7/26![Delta logo]()
$332
This Delta deal was found by Cheapflights users on 7/27. 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 9/212:40 pm
SJC
- IAD
1 stop8h 54m
Delta
Wed 9/93:15 pm
IAD
- SJC
1 stop9h 07m
Delta
Deal found 7/27![Delta logo]()
$362
Last-minute flights from San Jose to Dulles IntlDiscover last-minute flight deals from San Jose to Dulles Intl. Data last updated July 29, 2026 and is based on user searches.
Discover last-minute flight deals from San Jose to Dulles Intl. Data last updated July 29, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 7/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:12 pm
SJC
- IAD
1 stop15h 08m
Frontier
Sun 8/29:50 am
IAD
- SJC
1 stop30h 27m
Frontier
Deal found 7/26![Frontier logo]()
$322
This Delta deal was found by Cheapflights users on 7/24. 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.
Tue 8/116:40 am
SJC
- IAD
1 stop10h 25m
Delta
Thu 8/206:00 am
IAD
- SJC
1 stop8h 22m
Delta
Deal found 7/24![Delta logo]()
$320
This Delta deal was found by Cheapflights users on 7/24. 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.
Tue 8/116:10 am
SJC
- IAD
1 stop8h 59m
Delta
Thu 8/135:47 pm
IAD
- SJC
1 stop8h 11m
Delta
Deal found 7/24![Delta logo]()
$325
This Delta deal was found by Cheapflights users on 7/26. 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.
Wed 8/126:10 am
SJC
- IAD
1 stop8h 59m
Delta
Thu 8/206:00 am
IAD
- SJC
1 stop8h 22m
Delta
Deal found 7/26![Delta logo]()
$310
This Trip.com deal was found by Cheapflights users on 7/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:12 pm
SJC
- IAD
1 stop15h 08m
Frontier
Mon 8/248:59 am
IAD
- SJC
1 stop7h 23m
Frontier
Deal found 7/24![Frontier logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:12 pm
SJC
- IAD
1 stop14h 52m
Frontier
Thu 8/208:59 am
IAD
- SJC
1 stop31h 23m
Frontier
Deal found 7/28![Frontier logo]()
$308
This CheapOair deal was found by Cheapflights users on 7/28. 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 8/172:12 pm
SJC
- IAD
1 stop14h 52m
Frontier
Mon 8/248:59 am
IAD
- SJC
1 stop7h 23m
Frontier
Deal found 7/28![Frontier logo]()
$321
This Delta deal was found by Cheapflights users on 7/28. 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 8/186:10 am
SJC
- IAD
1 stop8h 59m
Delta
Sun 8/236:00 am
IAD
- SJC
1 stop9h 27m
Delta
Deal found 7/28![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 7/23. 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 8/2512:40 pm
SJC
- IAD
1 stop8h 54m
Delta
Tue 9/17:00 am
IAD
- SJC
1 stop8h 54m
Delta
Deal found 7/23![Delta logo]()
$315
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/266:37 pm
SJC
- IAD
1 stop7h 48m
United Airlines
Wed 9/26:15 am
IAD
- SJC
1 stop8h 31m
United Airlines
Deal found 7/27![United Airlines logo]()
$300
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 July 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 July 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:14 pm
SJC
- IAD
2 stops32h 50m
Frontier
Deal found 7/25![Frontier logo]()
$146
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:37 pm
SJC
- IAD
1 stop7h 48m
United Airlines
Deal found 7/28![United Airlines logo]()
$148
This Delta deal was found by Cheapflights users on 7/28. 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 8/251:46 pm
SJC
- IAD
1 stop6h 53m
Delta
Deal found 7/28![Delta logo]()
$153
This Delta deal was found by Cheapflights users on 7/28. 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 8/412:40 pm
SJC
- IAD
1 stop8h 54m
Delta
Deal found 7/28![Delta logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:14 pm
SJC
- IAD
2 stops42h 00m
Frontier
Deal found 7/26![Frontier logo]()
$159
This Delta deal was found by Cheapflights users on 7/24. 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.
Mon 8/31:46 pm
SJC
- IAD
1 stop6h 53m
Delta
Deal found 7/24![Delta logo]()
$163
This Delta deal was found by Cheapflights users on 7/24. 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.
Tue 8/186:10 am
SJC
- IAD
1 stop8h 59m
Delta
Deal found 7/24![Delta logo]()
$164
This Expedia deal was found by Cheapflights users on 7/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:12 pm
SJC
- IAD
1 stop15h 08m
Frontier
Deal found 7/25![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:12 pm
SJC
- IAD
1 stop14h 52m
Frontier
Deal found 7/26![Frontier logo]()
$168
This Trip.com deal was found by Cheapflights users on 7/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/201:02 pm
SJC
- IAD
1 stop16h 02m
Frontier
Deal found 7/25![Frontier logo]()
$170
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 July 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $295 (Trip.com) |
One-way from | $146 (Kiwi.com) |
Popular in | June |
Cheapest in | May |
Average price | $546 |
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 July 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
Tue 8/25
12:40 pm-12:34 am
1 stop8h 54m
Washington, D.C. Dulles Intl
Tue 9/1
3:03 pm-9:41 pm
1 stop9h 38m
$305
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Tue 9/1
6:20 am-5:37 pm
1 stop8h 17m
Washington, D.C. Dulles Intl
Wed 9/9
6:15 am-11:46 am
1 stop8h 31m
$305
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Thu 10/1
10:50 pm-9:09 am
1 stop7h 19m
Washington, D.C. Dulles Intl
Tue 10/6
6:13 am-12:47 pm
1 stop9h 34m
$305
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Sat 10/3
12:51 pm-12:41 am
1 stop8h 50m
Washington, D.C. Dulles Intl
Tue 10/6
6:13 am-12:47 pm
1 stop9h 34m
$311
Quickest round-trip
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Fri 8/14
1:46 pm-11:39 pm
1 stop6h 53m
Washington, D.C. Dulles Intl
Sun 8/16
7:00 am-12:54 pm
1 stop8h 54m
$315
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Wed 8/26
6:10 am-6:09 pm
1 stop8h 59m
Washington, D.C. Dulles Intl
Wed 9/9
3:15 pm-9:22 pm
1 stop9h 07m
$315
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Wed 11/11
10:20 pm-9:11 am
1 stop7h 51m
Washington, D.C. Dulles Intl
Sun 11/15
7:00 am-11:56 am
1 stop7h 56m
$315
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Tue 9/1
1:44 pm-5:40 am
1 stop12h 56m
Washington, D.C. Dulles Intl
Wed 9/9
7:35 pm-9:23 am
1 stop16h 48m
$325
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Sat 8/22
6:40 am-8:05 pm
1 stop10h 25m
Washington, D.C. Dulles Intl
Mon 8/24
5:47 pm-10:58 pm
1 stop8h 11m
$332
San JoseWashington, D.C.
SJC - IAD
SJCIAD
San Jose
Wed 9/2
12:40 pm-12:34 am
1 stop8h 54m
Washington, D.C. Dulles Intl
Wed 9/9
3:15 pm-9:22 pm
1 stop9h 07m
$362
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 July.
| 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, 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 $356). Flying from San Jose, California to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $548). 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?
Airfare is typical for this route at the moment.
San Jose, California to Washington, D.C. Dulles Intl Airport flights typically cost between $294 and $538 in August.The cheapest round-trip price found within the last 5 days was $295 on Frontier (Aug 13-Aug 24).
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 July 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.
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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
Owings Mills
Arlington
Tysons
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Falls Church
Hanover
Manassas
Laurel
Sterling
Clinton
Hunt Valley
Cordova
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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 July 29, 2026.
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San Jose and Dulles Intl flights
Browse other San Jose and Dulles Intl flight options. Last updated on July 29, 2026.
Other flights from San Jose
Browse through other flights departing from San Jose. Flights are based on user searches made on Cheapflights and were last updated on July 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 July 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$246 | Average$403 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$252 | Average$376 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$274 | Average$548 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$274 | Average$438 | FlexibilityNo cancel fee | On-timeN/A |