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San Jose

$122+ Cheap flights from Dulles Intl (IAD) to San Jose, CA (SJC)

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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJC
Feb 23 — Mar 21
Mon 2/23
Mon 3/2
1 adult, Economy
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Cheap flight deals from Dulles Intl to San Jose

Cheapest flights from Dulles Intl to San Jose
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 January 24, 2026.

This American Airlines deal was found by Cheapflights users on 1/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:00 am
IAD
-
SJC
1 stop10h 17m
American Airlines
Sat 2/216:00 am
SJC
-
IAD
1 stop7h 34m
American Airlines
Deal found 1/23$251
This Southwest deal was found by Cheapflights users on 1/21. 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.
Tue 2/249:05 am
IAD
-
SJC
1 stop8h 40m
Southwest
Tue 3/106:00 am
SJC
-
IAD
1 stop6h 55m
Southwest
Deal found 1/21$254
This Southwest deal was found by Cheapflights users on 1/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/189:05 am
IAD
-
SJC
2 stops9h 50m
Southwest
Sat 2/2112:20 pm
SJC
-
IAD
1 stop6h 25m
Southwest
Deal found 1/23$256
This Delta deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:12 pm
IAD
-
SJC
1 stop11h 21m
Delta
Tue 5/1210:20 pm
SJC
-
IAD
1 stop7h 50m
Delta
Deal found 1/22$257
This Delta deal was found by Cheapflights users on 1/22. 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 2/256:00 am
IAD
-
SJC
2 stops11h 56m
Delta
Tue 3/31:20 pm
SJC
-
IAD
1 stop7h 26m
Delta
Deal found 1/22$262
This Delta deal was found by Cheapflights users on 1/22. 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 2/247:15 am
IAD
-
SJC
2 stops13h 18m
Delta
Tue 3/108:35 pm
SJC
-
IAD
2 stops9h 35m
Delta
Deal found 1/22$268
This Delta deal was found by Cheapflights users on 1/22. 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 2/197:30 am
IAD
-
SJC
1 stop30h 25m
Delta
Tue 2/241:57 pm
SJC
-
IAD
1 stop7h 24m
Delta
Deal found 1/22$271
This Southwest deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:10 am
IAD
-
SJC
1 stop8h 10m
Southwest
Sat 2/2812:20 pm
SJC
-
IAD
1 stop6h 25m
Southwest
Deal found 1/21$274
This Alaska Airlines deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:10 am
IAD
-
SJC
1 stop9h 40m
Alaska Airlines
Wed 5/610:24 am
SJC
-
IAD
1 stop10h 45m
Alaska Airlines
Deal found 1/22$277
This CheapOair deal was found by Cheapflights users on 1/21. 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.
Thu 4/236:41 pm
IAD
-
SJC
1 stop18h 03m
Alaska Airlines
Wed 4/292:51 pm
SJC
-
IAD
1 stop23h 50m
Alaska Airlines
Deal found 1/21$280

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 January 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$251
(Southwest)

One-way from

$122
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$412
Provider with most accurate pricing for Washington, D.C. Dulles Intl-San Jose flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-San Jose flights.
Search Deals
From Washington, D.C. Dulles Intl to San Jose
Search Deals
One-way flight from Washington, D.C. Dulles Intl to San Jose
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 2,558,603 searches. Data last updated January 24, 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

Dulles Intl

Fly to

San Jose

Route

Depart

Return

Price

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Tue 4/7

3:35 pm-9:33 pm

1 stop8h 58m

San Jose

Tue 4/14

6:10 am-5:57 pm

1 stop8h 47m

$257

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 2/18

2:17 pm-8:53 pm

1 stop9h 36m

San Jose

Tue 2/24

10:35 pm-9:13 am

1 stop7h 38m

$257

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Sat 5/2

3:21 pm-9:34 pm

1 stop9h 13m

San Jose

Sat 5/9

1:35 pm-11:51 pm

1 stop7h 16m

$257

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 4/29

3:00 pm-9:34 pm

1 stop9h 34m

San Jose

Wed 5/13

12:45 pm-12:09 am

1 stop8h 24m

$257

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Mon 3/23

5:50 am-10:20 am

1 stop7h 30m

San Jose

Wed 3/25

6:45 am-5:20 pm

1 stop7h 35m

$277

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 5/13

1:00 pm-6:49 pm

1 stop8h 49m

San Jose

Wed 5/27

12:45 pm-12:09 am

1 stop8h 24m

$277

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 2/18

2:17 pm-8:53 pm

1 stop9h 36m

San Jose

Mon 2/23

10:35 pm-11:35 am

1 stop10h 00m

$277

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Thu 2/19

7:15 am-12:39 pm

1 stop8h 24m

San Jose

Tue 2/24

1:20 pm-11:46 pm

1 stop7h 26m

$277

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Tue 5/12

5:25 pm-10:53 pm

1 stop8h 28m

San Jose

Tue 5/26

10:20 pm-9:10 am

1 stop7h 50m

$277

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 5/13

5:15 pm-9:48 pm

1 stop7h 33m

San Jose

Tue 5/26

10:20 pm-9:10 am

1 stop7h 50m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Showing 1-10 of 20 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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 Expedia the most. Expedia 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.
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?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to San Jose. Price data was last updated on January 16, 2026.

Booking 26 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, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Jose, California (average of $188). Flying from Washington, D.C. Dulles Intl Airport to San Jose, California in June is currently the most expensive (average of $275). 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.

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 January 24, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
11,785 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,785 reviews
Alaska Airlines
8.0
Very good
11,785 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,268 reviews
Alaska Airlines
8.0
Very good
11,785 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,110 reviews
Alaska Airlines
8.0
Very good
11,785 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,194 reviews
Alaska Airlines
8.0
Very good
11,785 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,192 reviews
Alaska Airlines
8.0
Very good
11,785 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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.

  • What airport do you fly into for flights to San Jose from Washington, D.C. Dulles Intl?

    If you book a flight to San Jose from Washington, D.C. Dulles Intl, you will be flying to San Jose, which is the city’s only airport. San Jose (SJC) is located 2.9 mi from the center of San Jose. There are 0 flights from Washington, D.C. Dulles Intl to San Jose per day from 6 different airlines.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to San Jose, California?

    Delta can get you from Washington, D.C. Dulles Intl Airport to San Jose, California in just under 8h 58m. Your travel time can differ by up to . The distance between Washington, D.C. Dulles Intl Airport and San Jose, California is about 2393 mi.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to San Jose, California round-trip?

    Frontier, at $138, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to San Jose, California.Alternate airlines to your destination round-trip include American Airlines and Alaska Airlines. Users have found that Frontier is 65% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to San Jose, California one-way?

    $50 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Alaska Airlines and American Airlines, with prices starting from $108 and $125, respectively.

  • Can I find deals for flights from Dulles Intl to San Jose that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to San Jose flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to San Jose?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to San Jose.

  • Can I find deals for business class flights from Dulles Intl to San Jose?

    Yes. Cheapflights offers flight deals from Dulles Intl to San Jose by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to San Jose, California?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Jose, California (average of $188). Flying from Washington, D.C. Dulles Intl Airport to San Jose, California in June is currently the most expensive (average of $275). 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.

See more FAQs

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Alternative routes for Dulles Intl to San Jose

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Dulles Intl to San Jose

Discover the top 6 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 2,558,603 searches. Data last updated January 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$238FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$184Average$394FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$224Average$333FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$244Average$392FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$266Average$452FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$357FlexibilityNo cancel feeOn-timeN/A

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