$153+ Cheap flights from Dulles Intl (IAD) to San Jose, CA (SJC)
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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJC
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Cheapest flights from Dulles Intl to San JoseExplore the most affordable flight options available from Dulles Intl to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from Dulles Intl to San Jose. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This Expedia deal was found by Cheapflights users on 9/3. 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 10/156:00 am -
1 stop10h 20m
Wed 10/2110:37 am -
1 stop10h 22m
Deal found 9/3![Multiple Airlines logo]()
$296
This Expedia deal was found by Cheapflights users on 9/4. 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 9/187:47 pm -
1 stop16h 36m
Mon 9/211:38 pm -
1 stop13h 42m
Deal found 9/4![Multiple Airlines logo]()
$300
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:02 am -
1 stop9h 16m
Tue 10/2010:37 am -
1 stop10h 22m
Deal found 9/6![Alaska Airlines logo]()
$305
This Frontier deal was found by Cheapflights users on 9/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am -
1 stop9h 43m
Mon 9/211:38 pm -
1 stop13h 42m
Deal found 9/5![Frontier logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:47 pm -
1 stop16h 36m
Mon 9/285:06 pm -
1 stop22h 08m
Deal found 9/6![Alaska Airlines logo]()
$310
This Priceline deal was found by Cheapflights users on 9/3. 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.
Mon 10/196:00 am -
1 stop10h 20m
Mon 11/237:08 am -
1 stop7h 28m
Deal found 9/3![Multiple Airlines logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 9/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:02 am -
1 stop18h 57m
Thu 11/127:37 am -
1 stop7h 03m
Deal found 9/5![Alaska Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 9/3. 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 9/167:25 am -
1 stop9h 36m
Sat 9/199:42 am -
1 stop7h 32m
Deal found 9/3![Delta logo]()
$315
This Frontier deal was found by Cheapflights users on 9/4. 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.
Mon 9/216:00 am -
1 stop9h 43m
Mon 9/281:38 pm -
1 stop13h 42m
Deal found 9/4![Frontier logo]()
$322
This Delta deal was found by Cheapflights users on 9/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:00 am -
1 stop9h 58m
Wed 11/1811:30 am -
1 stop9h 50m
Deal found 9/7![Delta logo]()
$323
This Delta deal was found by Cheapflights users on 9/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:13 am -
1 stop9h 34m
Mon 11/27:31 am -
1 stop9h 35m
Deal found 9/5![Delta logo]()
$324
This Delta deal was found by Cheapflights users on 9/4. 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 9/266:00 am -
1 stop8h 36m
Tue 9/291:23 pm -
1 stop7h 00m
Deal found 9/4![Delta logo]()
$325
Best flights from Dulles Intl to San JoseDiscover carefully curated flight deals from Dulles Intl to San Jose that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Dulles Intl to San Jose that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This Delta deal was found by Cheapflights users on 9/2. 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 2/277:00 am -
1 stop7h 56m
Sat 3/67:00 am -
1 stop8h 26m
Deal found 9/2![Delta logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:24 pm -
1 stop18h 56m
Tue 10/2010:37 am -
1 stop10h 22m
Deal found 9/6![Alaska Airlines logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 9/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:24 pm -
1 stop18h 56m
Mon 10/193:51 pm -
1 stop22h 59m
Deal found 9/5![Alaska Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 9/3. 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 11/43:04 pm -
1 stop9h 21m
Wed 11/111:40 pm -
1 stop7h 07m
Deal found 9/3![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 9/3. 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 10/177:05 am -
1 stop9h 52m
Tue 10/2011:30 am -
1 stop8h 19m
Deal found 9/3![Delta logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:02 am -
1 stop18h 57m
Sat 11/77:37 am -
1 stop7h 03m
Deal found 9/6![Alaska Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 9/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:00 am -
1 stop8h 41m
Wed 10/147:31 am -
1 stop12h 18m
Deal found 9/5![Delta logo]()
$329
This Delta deal was found by Cheapflights users on 9/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:00 am -
2 stops13h 20m
Sat 12/57:20 am -
2 stops13h 03m
Deal found 9/5![Delta logo]()
$334
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:24 pm -
1 stop17h 30m
Tue 10/136:33 am -
2 stops14h 26m
Deal found 9/6![Alaska Airlines logo]()
$402
This Delta deal was found by Cheapflights users on 9/3. 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 10/257:05 am -
1 stop10h 07m
Thu 10/296:30 am -
1 stop7h 40m
Deal found 9/3![Delta logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:00 am -
1 stop9h 17m
Sun 10/48:02 am -
1 stop18h 38m
Deal found 9/6![Alaska Airlines logo]()
$424
This Delta deal was found by Cheapflights users on 9/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/212:30 pm -
1 stop8h 58m
Fri 11/277:21 am -
1 stop9h 33m
Deal found 9/6![Delta logo]()
$441
Last-minute flights from Dulles Intl to San JoseDiscover last-minute flight deals from Dulles Intl to San Jose. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to San Jose. Data last updated September 8, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 9/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am -
1 stop9h 43m
Thu 9/171:38 pm -
1 stop13h 42m
Deal found 9/5![Frontier logo]()
$309
This Delta deal was found by Cheapflights users on 9/3. 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 9/167:25 am -
1 stop9h 36m
Mon 9/2110:50 pm -
1 stop7h 19m
Deal found 9/3![Delta logo]()
$315
This Expedia deal was found by Cheapflights users on 9/4. 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 9/187:47 pm -
1 stop16h 36m
Mon 9/211:38 pm -
1 stop13h 42m
Deal found 9/4![Multiple Airlines logo]()
$300
This Frontier deal was found by Cheapflights users on 9/4. 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.
Mon 9/216:00 am -
1 stop9h 43m
Mon 9/281:38 pm -
1 stop13h 42m
Deal found 9/4![Frontier logo]()
$322
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:47 pm -
1 stop16h 36m
Mon 9/285:06 pm -
1 stop22h 08m
Deal found 9/6![Alaska Airlines logo]()
$310
This Delta deal was found by Cheapflights users on 9/4. 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 9/266:00 am -
1 stop8h 36m
Wed 9/301:23 pm -
1 stop7h 00m
Deal found 9/4![Delta logo]()
$325
This Delta deal was found by Cheapflights users on 9/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:05 am -
1 stop12h 57m
Tue 10/1311:30 am -
1 stop8h 19m
Deal found 9/6![Delta logo]()
$323
This Alaska Airlines deal was found by Cheapflights users on 9/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:02 am -
1 stop13h 59m
Mon 11/164:47 pm -
1 stop9h 57m
Deal found 9/5![Alaska Airlines logo]()
$314
This Expedia deal was found by Cheapflights users on 9/3. 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 10/156:00 am -
1 stop10h 20m
Wed 10/2110:37 am -
1 stop10h 22m
Deal found 9/3![Multiple Airlines logo]()
$296
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:02 am -
1 stop9h 16m
Tue 10/2010:37 am -
1 stop10h 22m
Deal found 9/6![Alaska Airlines logo]()
$305
This Priceline deal was found by Cheapflights users on 9/3. 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.
Mon 10/196:00 am -
1 stop10h 20m
Mon 11/237:08 am -
1 stop7h 28m
Deal found 9/3![Multiple Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 9/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:13 am -
1 stop9h 34m
Mon 11/27:31 am -
1 stop9h 35m
Deal found 9/6![Delta logo]()
$324
One-way flights from Dulles Intl to San JoseSearch for one-way flight options from Dulles Intl to San Jose. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Dulles Intl to San Jose. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Delta deal was found by Cheapflights users on 9/3. 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 11/147:00 am -
1 stop9h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$153
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/166:15 am -
1 stop8h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$158
This Priceline deal was found by Cheapflights users on 9/4. 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.
Mon 9/146:00 am -
1 stop9h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$161
This Alaska Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:47 pm -
1 stop16h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Alaska Airlines logo]()
$163
This Delta deal was found by Cheapflights users on 9/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:00 am -
1 stop8h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Delta logo]()
$168
This KAYAK deal was found by Cheapflights users on 9/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:00 am -
1 stop8h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 9/287:50 am -
2 stops15h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$184
This Frontier deal was found by Cheapflights users on 9/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am -
1 stop9h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$191
Find flight deals from Dulles Intl to San Jose
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to San Jose (SJC). 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 September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $296 (Expedia) |
One-way from | $153 (Delta) |
Popular in | June |
Cheapest in | January |
Average price | $440 |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to San Jose 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 September 8, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San Jose that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.San Jose
IAD Washington, D.C. Dulles Intl - SJC San Jose
IADSJC
Washington, D.C. Dulles Intl
Thu 11/5
3:37 pm-10:59 pm
1 stop10h 22m
San Jose
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$153
Washington, D.C.San Jose
IAD Washington, D.C. Dulles Intl - SJC San Jose
IADSJC
Washington, D.C. Dulles Intl
Sun 11/1
7:05 am-2:12 pm
1 stop10h 07m
San Jose
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$153
Washington, D.C.San Jose
IAD Washington, D.C. Dulles Intl - SJC San Jose
IADSJC
Washington, D.C. Dulles Intl
Wed 9/30
7:00 am-3:51 pm
1 stop11h 51m
San Jose
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$153
Washington, D.C.San Jose
IAD Washington, D.C. Dulles Intl - SJC San Jose
IADSJC
Washington, D.C. Dulles Intl
Thu 10/22
7:05 am-1:57 pm
1 stop9h 52m
San Jose
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$153
Washington, D.C.San Jose
IAD Washington, D.C. Dulles Intl - SJC San Jose
IADSJC
Washington, D.C. Dulles Intl
Sun 11/1
6:46 pm-9:21 am
1 stop17h 35m
San Jose
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$158
Quickest round-trip
Washington, D.C.San Jose
IAD Washington, D.C. Dulles Intl - SJC San Jose
IADSJC
Washington, D.C. Dulles Intl
Wed 9/16
6:15 am-11:46 am
1 stop8h 31m
San Jose
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$158
Washington, D.C.San Jose
IAD Washington, D.C. Dulles Intl - SJC San Jose
IADSJC
Washington, D.C. Dulles Intl
Wed 9/16
6:10 am-12:27 pm
1 stop9h 17m
San Jose
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$158
Washington, D.C.San Jose
IAD Washington, D.C. Dulles Intl - SJC San Jose
IADSJC
Washington, D.C. Dulles Intl
Mon 10/19
7:24 pm-9:54 am
1 stop17h 30m
San Jose
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$158
Washington, D.C.San Jose
IAD Washington, D.C. Dulles Intl - SJC San Jose
IADSJC
Washington, D.C. Dulles Intl
Tue 9/15
7:00 am-12:49 pm
1 stop8h 49m
San Jose
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$158
Washington, D.C.San Jose
IAD Washington, D.C. Dulles Intl - SJC San Jose
IADSJC
Washington, D.C. Dulles Intl
Fri 10/30
7:24 pm-11:20 am
1 stop18h 56m
San Jose
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$158
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Dulles Intl to San Jose
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 Dulles Intl to San Jose in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-San Jose, California flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-San Jose, California flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-San Jose, California flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-San Jose, California 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 Washington, D.C. Dulles Intl Airport-San Jose, California 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 Dulles Intl to San Jose
Have a flexible travel schedule? Discover the best time to fly to San Jose from Dulles Intl with our price prediction graph.
IAD-SJC
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 Washington, D.C. Dulles Intl Airport to San Jose
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to San Jose, California?
Booking 35 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to San Jose, California. 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 Washington, D.C. Dulles Intl Airport to San Jose, California?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Jose, California (average of $336). Flying from Washington, D.C. Dulles Intl Airport to San Jose, California in June is currently the most expensive (average of $553). 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 Washington, D.C. Dulles Intl Airport to San Jose, California?
Airfare is below average for this route at the moment.
Washington, D.C. Dulles Intl Airport to San Jose, California flights typically cost between $336 and $499 in October.The cheapest round-trip price found within the last 5 days was $296 on Multiple Airlines (Oct 15-Oct 21).
Reviews of airlines servicing San Jose
Get insights into the airlines that provide service to San Jose. 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 San Jose. Reviews last updated September 8, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta from Washington, D.C. Dulles Intl Airport to San Jose 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.
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to San Jose. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Dulles Intl and San Jose flights
Browse other Dulles Intl and San Jose flight options. Last updated on September 8, 2026.
Other flights from Dulles Intl
Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on September 8, 2026.
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Other flights to San Jose
Explore flights to San Jose departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 8, 2026.
Top 5 airlines flying from Dulles Intl to San Jose
Discover the top 5 airlines that operate flights from Dulles Intl to San Jose. 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 September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$148 | Average$444 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$250 | Average$377 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$264 | Average$423 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$282 | Average$482 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$294 | Average$630 | FlexibilityNo cancel fee | On-time71% |