Dulles Intl

$107+ Cheap flights from San Jose (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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — IAD
Aug 2 — Aug 91
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Cheapflights Tip: The best prices from San Jose to Washington, D.C. Dulles Intl are usually found in September or April, booked 71 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap 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 28, 2025.

Round-trip from

$269
(American Airlines)

One-way from

$107
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$458
From San Jose to Washington, D.C. Dulles Intl
One-way flight from San Jose to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 15% potential increase in price ($74 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 July 2025

Find flight deals from San Jose to Dulles Intl

Cheapest flights from San Jose to Dulles Intl
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 28, 2025.

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.
Fri 8/226:00 amSJC - IAD
1 stop10h 00mAmerican Airlines
Wed 9/311:47 amIAD - SJC
2 stops9h 48mAmerican Airlines
Deal found 7/27$269
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3010:25 amSJC - IAD
1 stop9h 25mSouthwest
Sat 9/65:05 pmIAD - SJC
1 stop7h 15mSouthwest
Deal found 7/27$274
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 9/51:35 pmSJC - IAD
1 stop6h 57mDelta
Sun 9/77:30 amIAD - SJC
1 stop8h 22mDelta
Deal found 7/28$277
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.
Mon 10/206:59 pmSJC - IAD
1 stop9h 34mAlaska Airlines
Wed 10/226:25 amIAD - SJC
1 stop11h 25mAlaska Airlines
Deal found 7/28$284
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/246:20 pmSJC - IAD
1 stop8h 02mUnited Airlines
Sun 8/316:00 amIAD - SJC
1 stop9h 05mUnited Airlines
Deal found 7/26$290
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/147:00 pmSJC - IAD
1 stop8h 34mFrontier
Mon 8/187:30 amIAD - SJC
1 stop8h 47mFrontier
Deal found 7/25$298
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1412:39 pmSJC - IAD
3 stops24h 36mMultiple Airlines
Mon 8/185:40 pmIAD - SJC
3 stops25h 06mMultiple Airlines
Deal found 7/25$327
This Hawaiian 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:30 pmSJC - IAD
1 stop10h 02mHawaiian Airlines
Thu 8/285:52 pmIAD - SJC
1 stop7h 46mHawaiian Airlines
Deal found 7/26$347

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 28, 2025.
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

San Jose

Fly to

Dulles Intl

Route

Depart

Return

Price

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Fri 8/22

6:00 am-7:00 pm

1 stop10h 00m

Washington, D.C. Dulles Intl

Wed 9/3

11:47 am-6:35 pm

2 stops9h 48m

$269

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Sat 8/30

10:25 am-10:50 pm

1 stop9h 25m

Washington, D.C. Dulles Intl

Sat 9/6

5:05 pm-9:20 pm

1 stop7h 15m

$274

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Fri 9/5

1:35 pm-11:32 pm

1 stop6h 57m

Washington, D.C. Dulles Intl

Sun 9/7

7:30 am-12:52 pm

1 stop8h 22m

$277

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Mon 10/20

6:59 pm-7:33 am

1 stop9h 34m

Washington, D.C. Dulles Intl

Wed 10/22

6:25 am-2:50 pm

1 stop11h 25m

$284

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Sun 8/24

6:20 pm-5:22 am

1 stop8h 02m

Washington, D.C. Dulles Intl

Sun 8/31

6:00 am-12:05 pm

1 stop9h 05m

$290

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Thu 8/14

7:00 pm-6:34 am

1 stop8h 34m

Washington, D.C. Dulles Intl

Mon 8/18

7:30 am-1:17 pm

1 stop8h 47m

$298

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Thu 8/14

12:39 pm-4:15 pm

3 stops24h 36m

Washington, D.C. Dulles Intl

Mon 8/18

5:40 pm-3:46 pm

3 stops25h 06m

$327

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Mon 8/25

6:30 pm-7:32 am

1 stop10h 02m

Washington, D.C. Dulles Intl

Thu 8/28

5:52 pm-10:38 pm

1 stop7h 46m

$347

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Thu 11/27

5:57 am-4:12 pm

1 stop7h 15m

$107

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Wed 8/20

6:00 am-6:30 am

1 stop21h 30m

$111

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 16 results
1
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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.
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

How far ahead should I book a flight from San Jose to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from San Jose to Dulles Intl. Price data was last updated on July 25, 2025.

The price you pay for your flight from San Jose to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from San Jose to Washington, D.C. Dulles Intl Airport (average of $309). Flying from San Jose to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 SJC to IAD?

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

Unlike in the evening, when flights are generally more expensive, you can save up to 15% on flights from San Jose to Washington, D.C. Dulles Intl Airport by exploring options for tickets at noon.

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 28, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta 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.

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Food

7.1

Crew

8.5

Overall

8.0

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

    San Jose (SJC), located 2.9 mi from the city center, is the airport you fly out of when you book flights from San Jose to Washington, D.C. Dulles Intl. 6 airlines have flights from San Jose to Washington, D.C. Dulles Intl on a regular basis. Booking flights from San Jose to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

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

    Flying on American Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $269. Additional round-trip tickets that might be worth considering are offered by Southwest and Delta, with the lowest prices starting at $274 and $277, respectively. American Airlines is currently priced 32% below the average price you’ll pay for this route.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $107. Users have also found prices from $114 and $120 on Southwest and Hawaiian Airlines, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Jose to Dulles Intl 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 San Jose to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from San Jose to Washington, D.C. Dulles Intl Airport (average of $309). Flying from San Jose to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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

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 locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Easton
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
Springfield
National Harbor
Dundalk

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Alternative routes for San Jose to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from San Jose to Dulles Intl

Discover the top 6 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 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$166Average$248FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$198Average$297FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$349FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$258Average$441FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$264Average$368FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$276Average$417FlexibilityNo cancel feeOn-time69%

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