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

Flying on Alaska Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $246. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $251 and $277, respectively. Alaska Airlines is currently priced 41% 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 Frontier. According to our data, you can fly for as low as $108. Users have also found prices from $112 and $126 on Hawaiian Airlines and Alaska Airlines, respectively.

What are the most popular airlines that fly from San Jose to Washington, D.C. Dulles Intl Airport?

Consider American Airlines, Alaska Airlines or Delta when booking your flight. These represent the most popular airlines when flying from San Jose to Washington, D.C. Dulles Intl Airport.

What is the cheapest day to fly round-trip from San Jose to Washington, D.C. Dulles Intl Airport?

Leaving on a Tuesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 21% on the overall cost on flights from San Jose to Washington, D.C. Dulles Intl Airport.

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

Due to multiple factors, expect to potentially pay more when booking in November. For low rates, September can be a great choice for travel to Washington, D.C. Dulles Intl Airport. Flights to Washington, D.C. Dulles Intl Airport from San Jose in September are about $348 on average during September, but can be found for as low as $100.

Most accurate provider : When it comes to deals on San Jose-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Jose-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Jose-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Jose-Washington, D.C. Dulles Intl Airport 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 San Jose-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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.

$108+ Flights from San Jose to Washington, D.C. Dulles Intl Airport

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

Travelers have found it’s best to book a flight 18 days in advance to save up to 154% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 18 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from San Jose to Washington, D.C. Dulles Intl Airport 1-2 weeks in advance for as low as $251, or $438 for flights within the next 24 hours.

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Find cheap flights from San Jose to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Jose to Washington, D.C. Dulles Intl are usually found in September or April, booked 50 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from San Jose to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$246 (Alaska Airlines)
One-way from	$108 (Cheapflightsfares)
Popular in	December
Cheapest in	September
Average price	$353

Provider with most accurate pricing for San Jose-Washington, D.C. Dulles Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Jose-Washington, D.C. Dulles Intl flights.

Search Deals

From San Jose to Washington, D.C. Dulles Intl

Search Deals

One-way flight from San Jose to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 11% potential increase in price ($54 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 April 30, 2025.

Tue 5/136:15 amSJC - IAD

1 stop7h 23mAlaska Airlines

Wed 8/66:30 amIAD - SJC

1 stop10h 59mAlaska Airlines

Deal found 4/29

$246

Tue 5/2011:00 amSJC - IAD

1 stop16h 31mMultiple Airlines

Thu 5/227:25 amIAD - SJC

1 stop9h 18mMultiple Airlines

Deal found 4/29

$250

Tue 6/177:00 amSJC - IAD

1 stop9h 21mUnited Airlines

Tue 6/243:35 pmIAD - SJC

1 stop10h 04mUnited Airlines

Deal found 4/29

$251

Mon 8/1111:00 pmSJC - IAD

1 stop6h 42mDelta

Sat 8/165:00 pmIAD - SJC

1 stop9h 11mDelta

Deal found 4/28

$277

Fri 7/411:43 amSJC - IAD

1 stop7h 56mAmerican Airlines

Sat 7/266:27 amIAD - SJC

1 stop8h 49mAmerican Airlines

Deal found 4/29

$305

Sun 5/116:15 amSJC - IAD

1 stop8h 44mHawaiian Airlines

Mon 5/125:00 pmIAD - SJC

1 stop8h 30mHawaiian Airlines

Deal found 4/29

$306

Fri 5/167:41 pmSJC - IAD

1 stop7h 50mFrontier

Thu 8/77:30 amIAD - SJC

1 stop13h 34mFrontier

Deal found 4/29

$311

Tue 6/310:35 amSJC - IAD

2 stops9h 00mSouthwest

Sat 6/76:30 amIAD - SJC

1 stop11h 15mSouthwest

Deal found 4/29

$312

Best flights from San Jose to Dulles Intl
Discover carefully curated flight deals from San Jose to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Tue 5/136:15 amSJC - IAD

1 stop7h 23mAlaska Airlines

Wed 8/66:30 amIAD - SJC

1 stop10h 59mAlaska Airlines

Deal found 4/29

$246

Tue 5/2011:00 amSJC - IAD

1 stop16h 31mMultiple Airlines

Thu 5/227:25 amIAD - SJC

1 stop9h 18mMultiple Airlines

Deal found 4/29

$250

Tue 6/177:00 amSJC - IAD

1 stop9h 21mUnited Airlines

Tue 6/243:35 pmIAD - SJC

1 stop10h 04mUnited Airlines

Deal found 4/29

$251

Mon 8/1111:00 pmSJC - IAD

1 stop6h 42mDelta

Sat 8/165:00 pmIAD - SJC

1 stop9h 11mDelta

Deal found 4/28

$277

Sat 5/106:15 amSJC - IAD

1 stop7h 23mHawaiian Airlines

Mon 5/125:00 pmIAD - SJC

1 stop8h 30mHawaiian Airlines

Deal found 4/29

$290

Fri 7/411:43 amSJC - IAD

1 stop7h 56mAmerican Airlines

Sat 7/266:27 amIAD - SJC

1 stop8h 49mAmerican Airlines

Deal found 4/29

$305

Fri 5/167:41 pmSJC - IAD

1 stop7h 50mFrontier

Thu 8/77:30 amIAD - SJC

1 stop13h 34mFrontier

Deal found 4/29

$311

Tue 6/310:35 amSJC - IAD

2 stops9h 00mSouthwest

Sat 6/76:30 amIAD - SJC

1 stop11h 15mSouthwest

Deal found 4/29

$312

Last-minute flights from San Jose to Dulles Intl
Discover last-minute flight deals from San Jose to Dulles Intl. Data last updated April 30, 2025 and is based on user searches.

Wed 5/75:55 amSJC - IAD

2 stops9h 08mDelta

Mon 5/125:24 pmIAD - SJC

2 stops9h 17mDelta

Deal found 4/29

$1,355

Thu 5/83:00 pmSJC - IAD

1 stop23h 59mAlaska Airlines

Tue 5/137:00 amIAD - SJC

2 stops14h 17mAlaska Airlines

Deal found 4/29

$284

Thu 5/812:10 pmSJC - IAD

1 stop7h 47mAmerican Airlines

Sun 5/116:17 amIAD - SJC

1 stop7h 58mAmerican Airlines

Deal found 4/29

$401

Thu 5/86:00 amSJC - IAD

2 stops27h 23mMultiple Airlines

Mon 5/122:16 pmIAD - SJC

3 stops36h 13mMultiple Airlines

Deal found 4/29

$446

Sat 5/101:11 pmSJC - IAD

1 stop7h 47mUnited Airlines

Sat 5/176:00 amIAD - SJC

1 stop9h 03mUnited Airlines

Deal found 4/29

$300

Sat 5/109:30 amSJC - IAD

2 stops10h 45mSouthwest

Sun 5/115:15 amIAD - SJC

2 stops13h 30mSouthwest

Deal found 4/29

$417

Sun 5/116:15 amSJC - IAD

1 stop8h 44mHawaiian Airlines

Mon 5/125:00 pmIAD - SJC

1 stop8h 30mHawaiian Airlines

Deal found 4/29

$306

Tue 5/136:15 amSJC - IAD

1 stop7h 23mAlaska Airlines

Wed 8/66:30 amIAD - SJC

1 stop10h 59mAlaska Airlines

Deal found 4/29

$246

Fri 5/167:41 pmSJC - IAD

1 stop7h 50mFrontier

Thu 8/77:30 amIAD - SJC

1 stop13h 34mFrontier

Deal found 4/29

$311

Tue 5/2011:00 amSJC - IAD

1 stop16h 31mMultiple Airlines

Thu 5/227:25 amIAD - SJC

1 stop9h 18mMultiple Airlines

Deal found 4/29

$250

Wed 5/211:11 pmSJC - IAD

1 stop7h 47mUnited Airlines

Tue 5/276:35 amIAD - SJC

1 stop9h 46mUnited Airlines

Deal found 4/29

$251

Thu 5/2210:05 amSJC - IAD

2 stops9h 35mSouthwest

Tue 6/35:30 pmIAD - SJC

1 stop8h 05mSouthwest

Deal found 4/28

$397

One-way flights from San Jose to Dulles Intl
Search for one-way flight options from San Jose to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Mon 5/57:41 pmSJC - IAD

1 stop7h 50mFrontier

Deal found 4/29

$108

Sat 5/106:15 amSJC - IAD

1 stop7h 23mHawaiian Airlines

Deal found 4/29

$112

Tue 5/2711:00 amSJC - IAD

1 stop15h 55mMultiple Airlines

Deal found 4/29

$113

Wed 6/116:15 amSJC - IAD

1 stop9h 10mAlaska Airlines

Deal found 4/29

$126

Sat 5/176:20 amSJC - IAD

1 stop10h 07mUnited Airlines

Deal found 4/29

$129

Tue 6/179:45 amSJC - IAD

2 stops9h 54mAmerican Airlines

Deal found 4/29

$131

Sat 5/316:08 pmSJC - IAD

1 stop8h 44mDelta

Deal found 4/29

$139

Wed 7/210:00 amSJC - IAD

2 stops9h 45mSouthwest

Deal found 4/29

$154

Cheapflights Fare Finder

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

Fly to

Route

Depart

Return

Price

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Tue 5/13

6:15 am-4:38 pm

1 stop7h 23m

Washington, D.C. Dulles Intl

Wed 8/6

6:30 am-2:29 pm

1 stop10h 59m

$246

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Tue 5/20

11:00 am-6:31 am

1 stop16h 31m

Washington, D.C. Dulles Intl

Thu 5/22

7:25 am-1:43 pm

1 stop9h 18m

$250

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Tue 6/17

7:00 am-7:21 pm

1 stop9h 21m

Washington, D.C. Dulles Intl

Tue 6/24

3:35 pm-10:39 pm

1 stop10h 04m

$251

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Mon 8/11

11:00 pm-8:42 am

1 stop6h 42m

Washington, D.C. Dulles Intl

Sat 8/16

5:00 pm-11:11 pm

1 stop9h 11m

$277

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Sat 5/10

6:15 am-4:38 pm

1 stop7h 23m

Washington, D.C. Dulles Intl

Mon 5/12

5:00 pm-10:30 pm

1 stop8h 30m

$290

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Fri 7/4

11:43 am-10:39 pm

1 stop7h 56m

Washington, D.C. Dulles Intl

Sat 7/26

6:27 am-12:16 pm

1 stop8h 49m

$305

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Fri 5/16

7:41 pm-6:31 am

1 stop7h 50m

Washington, D.C. Dulles Intl

Thu 8/7

7:30 am-6:04 pm

1 stop13h 34m

$311

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Tue 6/3

10:35 am-10:35 pm

2 stops9h 00m

Washington, D.C. Dulles Intl

Sat 6/7

6:30 am-2:45 pm

1 stop11h 15m

$312

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Mon 5/5

7:41 pm-6:31 am

1 stop7h 50m

$108

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Sat 5/10

6:15 am-4:38 pm

1 stop7h 23m

$112

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 15 results

Compare providers for flights from San Jose to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Jose to Dulles Intl in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Trip.com	Price Accuracy1 star	Trust Score*3 stars

*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 San Jose-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Jose-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Jose-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Jose-Washington, D.C. Dulles Intl Airport 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 San Jose-Washington, D.C. Dulles Intl Airport 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 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?

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 49 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 June is currently the most expensive (average of $373). 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?

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.

What is the cheapest day to fly from San Jose to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their San Jose to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from San Jose to Washington, D.C. by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,961 reviews

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

9,961 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

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

4,295 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

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

7,929 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.9

Good

2,405 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

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

8,696 reviews

Alaska Airlines

8.0

Very good

9,961 reviews

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

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 Alaska Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $246. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $251 and $277, respectively. Alaska Airlines is currently priced 41% 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 Frontier. According to our data, you can fly for as low as $108. Users have also found prices from $112 and $126 on Hawaiian Airlines and Alaska 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 June is currently the most expensive (average of $373). 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.

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Top 6 airlines flying from San Jose to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$155	Average$234	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$198	Average$303	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$256	Average$385	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$256	Average$417	FlexibilityNo cancel fee	On-time63%
Alaska Airlines	Cheapest$264	Average$386	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$276	Average$474	FlexibilityNo cancel fee	On-time69%

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$108+ 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Jose to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from San Jose to Washington, D.C. Dulles Intl are usually found in September or April, booked 50 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from San Jose to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Jose to Dulles Intl

Cheapest flights from San Jose to Dulles IntlExplore 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 April 30, 2025.

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 April 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Jose to Washington, D.C. Dulles Intl Airport that are best for you.

Compare providers for flights from San Jose to Dulles Intl

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 San Jose to Dulles Intl in April.

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.

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 April 25, 2025.

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

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 April 30, 2025.

What is the cheapest day to fly from San Jose to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from San Jose to Dulles Intl. Price data was last updated on December 16, 2024.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from San Jose to Washington, D.C. by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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

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Alternative routes for San Jose to Dulles Intl

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Top 6 airlines flying from San Jose to Dulles Intl

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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 April 30, 2025.