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San Jose

$124+ Cheap flights from Dulles Intl (IAD) to San Jose (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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJC
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to San Jose are usually found in September or June, booked 51 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 July 29, 2025.

Round-trip from

$243
(iWofly)

One-way from

$124
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$336
From Washington, D.C. Dulles Intl to San Jose
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One-way flight from Washington, D.C. Dulles Intl to San Jose
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Highest demand for flights based on searches. 10% potential increase in price ($44 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 29, 2025.

This iWofly 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/267:00 amIAD - SJC
1 stop10h 21mMultiple Airlines
Wed 10/297:00 amSJC - IAD
1 stop7h 13mMultiple Airlines
Deal found 7/28$243
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/239:00 amIAD - SJC
1 stop11h 36mAlaska Airlines
Tue 9/3010:06 amSJC - IAD
1 stop11h 17mAlaska Airlines
Deal found 7/28$250
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/206:27 amIAD - SJC
1 stop8h 52mAmerican Airlines
Wed 8/276:00 amSJC - IAD
1 stop10h 00mAmerican Airlines
Deal found 7/27$251
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.
Sun 8/246:00 amIAD - SJC
1 stop9h 05mUnited Airlines
Sun 8/316:30 amSJC - IAD
1 stop8h 00mUnited Airlines
Deal found 7/27$262
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/65:40 pmIAD - SJC
1 stop7h 57mHawaiian Airlines
Mon 11/107:00 amSJC - IAD
1 stop7h 13mHawaiian Airlines
Deal found 7/28$276
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/225:11 pmIAD - SJC
1 stop7h 37mDelta
Mon 8/256:00 pmSJC - IAD
1 stop8h 55mDelta
Deal found 7/29$277
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/265:45 amIAD - SJC
2 stops11h 35mSouthwest
Wed 8/2712:25 pmSJC - IAD
1 stop6h 40mSouthwest
Deal found 7/28$290
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/147:30 amIAD - SJC
1 stop13h 34mFrontier
Thu 8/216:27 pmSJC - IAD
1 stop9h 03mFrontier
Deal found 7/29$298

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 July 29, 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 8/26

7:00 am-2:21 pm

1 stop10h 21m

San Jose

Wed 10/29

7:00 am-5:13 pm

1 stop7h 13m

$243

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Tue 9/23

9:00 am-5:36 pm

1 stop11h 36m

San Jose

Tue 9/30

10:06 am-12:23 am

1 stop11h 17m

$250

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 8/20

6:27 am-12:19 pm

1 stop8h 52m

San Jose

Wed 8/27

6:00 am-7:00 pm

1 stop10h 00m

$251

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Sun 8/24

6:00 am-12:05 pm

1 stop9h 05m

San Jose

Sun 8/31

6:30 am-5:30 pm

1 stop8h 00m

$262

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Fri 8/22

6:15 am-12:21 pm

1 stop9h 06m

San Jose

Tue 8/26

1:35 pm-11:32 pm

1 stop6h 57m

$277

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Tue 8/26

5:45 am-2:20 pm

2 stops11h 35m

San Jose

Wed 8/27

12:25 pm-10:05 pm

1 stop6h 40m

$290

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Fri 9/5

7:00 am-2:21 pm

1 stop10h 21m

San Jose

Mon 9/8

6:15 am-4:52 pm

1 stop7h 37m

$297

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Thu 8/14

7:30 am-6:04 pm

1 stop13h 34m

San Jose

Mon 8/18

2:12 pm-6:34 am

1 stop13h 22m

$298

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Sun 8/31

6:00 am-12:05 pm

1 stop9h 05m

$124

Washington, D.C.San Jose

IAD - SJC

IADSJC

Washington, D.C. Dulles Intl

Wed 8/27

5:52 pm-10:38 pm

1 stop7h 46m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 16 results
1
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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?

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 July 25, 2025.

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to San Jose, you should look to book at least 51 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Jose (average of $253). Flying from Washington, D.C. Dulles Intl Airport to San Jose in June is currently the most expensive (average of $359). 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 July 29, 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 in the evening. If you’re flexible enough to do this you can expect to save up to 53% on your trip compared to booking a flight in the afternoon.

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 July 29, 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,605 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 7 different airlines.

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

    Currently priced at $250, Alaska Airlines will fly you from Washington, D.C. Dulles Intl Airport to San Jose and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $251 and $262, respectively. Alaska Airlines is currently priced 35% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $124. Alaska Airlines flights start at $125 while deals on American Airlines start at $126 one-way.

  • 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?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San Jose (average of $253). Flying from Washington, D.C. Dulles Intl Airport to San Jose in June is currently the most expensive (average of $359). 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 7 airlines flying from Dulles Intl to San Jose

Discover the top 7 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$63Average$262FlexibilityNo cancel feeOn-time65%
FrontierCheapest$135Average$238FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$198Average$376FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$224Average$318FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$246Average$438FlexibilityNo cancel feeOn-time63%
DeltaCheapest$256Average$342FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$266Average$446FlexibilityNo cancel feeOn-time69%

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