San Jose

$101+ 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJC
Nov 27 — Dec 41
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to San Jose are usually found in September or August, booked 26 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$250
(Alaska Airlines)

One-way from

$101
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$490
Provider with most accurate pricing for Washington, D.C. Dulles Intl-San Jose flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-San Jose flights.
From Washington, D.C. Dulles Intl to San Jose
One-way flight from Washington, D.C. Dulles Intl to San Jose
Highest demand for flights based on searches. 11% potential increase in price ($52 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Average for round-trip flights in October 2025

Find 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 October 28, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 12/97:34 amIAD - SJC
1 stop11h 20mAlaska Airlines
Tue 1/277:00 amSJC - IAD
1 stop7h 04mAlaska Airlines
Deal found 10/27$250
This Delta deal was found by Cheapflights users on 10/27. 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.
Sat 12/133:38 pmIAD - SJC
1 stop10h 17mDelta
Wed 1/2110:30 pmSJC - IAD
1 stop7h 46mDelta
Deal found 10/27$257
This Delta deal was found by Cheapflights users on 10/27. 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.
Tue 12/97:01 amIAD - SJC
2 stops11h 02mDelta
Tue 1/272:06 pmSJC - IAD
1 stop7h 18mDelta
Deal found 10/27$262
This KAYAK deal was found by Cheapflights users on 10/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:34 amIAD - SJC
1 stop9h 16mAlaska Airlines
Wed 12/107:00 amSJC - IAD
1 stop7h 30mAlaska Airlines
Deal found 10/27$264
This Delta deal was found by Cheapflights users on 10/27. 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 12/36:00 amIAD - SJC
2 stops12h 03mDelta
Wed 12/177:45 pmSJC - IAD
2 stops11h 41mDelta
Deal found 10/27$267
This Alaska Airlines deal was found by Cheapflights users on 10/27. 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 12/97:34 amIAD - SJC
1 stop11h 20mAlaska Airlines
Mon 1/267:00 amSJC - IAD
1 stop7h 04mAlaska Airlines
Deal found 10/27$273
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/262:25 pmIAD - SJC
1 stop9h 28mUnited Airlines
Wed 12/38:45 amSJC - IAD
1 stop9h 39mUnited Airlines
Deal found 10/27$274
This KAYAK deal was found by Cheapflights users on 10/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/155:37 pmIAD - SJC
1 stop8h 05mAlaska Airlines
Tue 1/67:00 amSJC - IAD
1 stop7h 21mAlaska Airlines
Deal found 10/28$276
This Delta deal was found by Cheapflights users on 10/27. 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.
Sat 12/133:38 pmIAD - SJC
1 stop10h 17mDelta
Fri 1/2310:30 pmSJC - IAD
1 stop7h 46mDelta
Deal found 10/27$277
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Mon 12/82:16 pmIAD - SJC
2 stops11h 01mAmerican Airlines
Sat 12/136:00 amSJC - IAD
1 stop7h 18mAmerican Airlines
Deal found 10/27$279
This Delta deal was found by Cheapflights users on 10/27. 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.
Sat 12/139:00 amIAD - SJC
2 stops10h 48mDelta
Sun 1/252:06 pmSJC - IAD
1 stop7h 18mDelta
Deal found 10/27$282
This KAYAK deal was found by Cheapflights users on 10/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:34 amIAD - SJC
1 stop9h 16mAlaska Airlines
Thu 12/117:00 amSJC - IAD
1 stop7h 30mAlaska Airlines
Deal found 10/27$287

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 October 28, 2025.
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 2/24

4:00 pm-9:32 pm

1 stop8h 32m

San Jose

Wed 2/25

11:35 am-11:16 pm

1 stop8h 41m

$257

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Tue 11/18

6:00 am-11:32 am

1 stop8h 32m

San Jose

Wed 11/19

10:25 pm-11:39 am

1 stop10h 14m

$257

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 12/3

6:00 am-3:03 pm

2 stops12h 03m

San Jose

Wed 12/17

10:25 pm-9:11 am

1 stop7h 46m

$262

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Tue 1/6

7:30 am-1:39 pm

1 stop9h 09m

San Jose

Tue 1/13

9:50 am-11:57 pm

2 stops11h 07m

$262

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 1/7

7:30 am-1:39 pm

1 stop9h 09m

San Jose

Sat 1/10

6:15 am-7:24 pm

2 stops10h 09m

$262

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 1/28

5:26 pm-10:35 pm

1 stop8h 09m

$125

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Sat 1/31

5:26 pm-10:35 pm

1 stop8h 09m

$125

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 2/11

5:26 pm-10:35 pm

1 stop8h 09m

$125

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Tue 2/3

5:26 pm-10:35 pm

1 stop8h 09m

$125

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Sat 1/17

4:11 pm-8:56 pm

1 stop7h 45m

$126

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 17 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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-San Jose, California flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 October 24, 2025.

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.

What is the cheapest time of day to fly from IAD to SJC?

Find hourly flight availability from Dulles Intl to San Jose. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to San Jose, California in the evening. If you’re flexible enough to do this you can expect to save up to 52% on your trip compared to booking a flight in the afternoon.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to San Jose, California?

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 October 28, 2025.
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.

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 32m. 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 64% cheaper than the other options available to this destination.

  • 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.

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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$138Average$238FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$184Average$427FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$224Average$320FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$242Average$418FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$270Average$476FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$345FlexibilityNo cancel feeOn-timeN/A

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