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Cheap flights from San Jose to Washington, D.C. from $126

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Jose to Washington, D.C. departing on 10/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from San Jose to Washington, D.C.

Cheap round-trip flights

Southwest Logo
8:40 am - 10:10 pmSJC-IAD
10h 30m1 stop
Southwest Logo
4:30 pm - 9:55 pmIAD-SJC
8h 25m1 stop
$243Southwest
Find Deal
Mon, Dec 15 - Tue, Jan 6
Hawaiian Airlines Logo
12:52 pm - 12:23 amSJC-IAD
8h 31m1 stop
Hawaiian Airlines Logo
6:25 am - 2:50 pmIAD-SJC
11h 25m1 stop
$250Hawaiian Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 8
Southwest Logo
12:45 pm - 10:15 pmSJC-IAD
6h 30m1 stop
Southwest Logo
4:15 pm - 9:00 pmIAD-SJC
7h 45m1 stop
$255Southwest
Find Deal
Sat, Nov 15 - Sat, Nov 22
Southwest Logo
1:55 pm - 11:30 pmSJC-IAD
6h 35m1 stop
Southwest Logo
7:25 am - 11:55 amIAD-SJC
7h 30m1 stop
$260Southwest
Find Deal
Mon, Oct 27 - Thu, Oct 30
Alaska Airlines Logo
5:57 pm - 6:13 amSJC-IAD
9h 16m1 stop
Alaska Airlines Logo
6:21 pm - 9:49 amIAD-SJC
18h 28m1 stop
$261Alaska Airlines
Find Deal
Thu, Jan 1 - Mon, Jan 5
Alaska Airlines Logo
10:06 am - 12:23 amSJC-IAD
11h 17m1 stop
Alaska Airlines Logo
6:25 am - 2:50 pmIAD-SJC
11h 25m1 stop
$263Alaska Airlines
Find Deal
Thu, Oct 2 - Wed, Oct 8
United Airlines Logo
8:45 am - 7:23 pmSJC-IAD
7h 38m1 stop
United Airlines Logo
6:01 am - 12:01 pmIAD-SJC
9h 00m1 stop
$264United Airlines
Find Deal
Thu, Oct 2 - Tue, Oct 7
Delta Logo
6:35 am - 4:57 pmSJC-IAD
7h 22m1 stop
Delta Logo
7:35 am - 3:57 pmIAD-SJC
11h 22m1 stop
$277Delta
Find Deal
Tue, Oct 28 - Fri, Oct 31
Delta Logo
12:35 pm - 11:17 pmSJC-IAD
7h 42m1 stop
Delta Logo
6:18 am - 12:24 pmIAD-SJC
9h 06m1 stop
$279Delta
Find Deal
Tue, Sep 30 - Thu, Oct 9
Frontier Logo
2:14 pm - 9:17 amSJC-IAD
16h 03m2 stops
Frontier Logo
10:09 pm - 11:30 amIAD-SJC
16h 21m2 stops
$295Frontier
Find Deal
Thu, Sep 25 - Sun, Sep 28

Alaska Airlines flights from San Jose to Washington, D.C. Dulles Intl Airport

Our best Alaska Airlines deals on San Jose to Washington, D.C. Dulles Intl Airport flight tickets
Alaska Airlines
Jan 1
SJC5:57 pmSan Jose
9h 16m
1 stop
IAD6:13 amWashington, D.C. Dulles Intl
Jan 5
IAD6:21 pmWashington, D.C. Dulles Intl
18h 28m
1 stop
SJC9:49 amSan Jose
$261
Find similar
Alaska Airlines
Oct 2
SJC10:06 amSan Jose
11h 17m
1 stop
IAD12:23 amWashington, D.C. Dulles Intl
Oct 8
IAD6:25 amWashington, D.C. Dulles Intl
11h 25m
1 stop
SJC2:50 pmSan Jose
$263
Find similar
Alaska Airlines
Nov 5
SJC7:00 amSan Jose
7h 13m
1 stop
IAD5:13 pmWashington, D.C. Dulles Intl
Nov 10
IAD5:40 pmWashington, D.C. Dulles Intl
7h 57m
1 stop
SJC10:37 pmSan Jose
$273
Find similar

Delta flights from San Jose to Washington, D.C. Dulles Intl Airport

Our best Delta deals on San Jose to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Oct 28
SJC6:35 amSan Jose
7h 22m
1 stop
IAD4:57 pmWashington, D.C. Dulles Intl
Oct 31
IAD7:35 amWashington, D.C. Dulles Intl
11h 22m
1 stop
SJC3:57 pmSan Jose
$277
Find similar
Delta
Sep 30
SJC12:35 pmSan Jose
7h 42m
1 stop
IAD11:17 pmWashington, D.C. Dulles Intl
Oct 9
IAD6:18 amWashington, D.C. Dulles Intl
9h 06m
1 stop
SJC12:24 pmSan Jose
$279
Find similar
Delta
Oct 3
SJC12:35 pmSan Jose
8h 38m
1 stop
IAD12:13 amWashington, D.C. Dulles Intl
Oct 9
IAD6:18 amWashington, D.C. Dulles Intl
9h 06m
1 stop
SJC12:24 pmSan Jose
$281
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Jose to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated September 11, 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

Fly to

Route

Depart

Return

Price

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Mon 12/15

8:40 am-10:10 pm

1 stop10h 30m

Washington, D.C. Dulles Intl

Tue 1/6

4:30 pm-9:55 pm

1 stop8h 25m

$243

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Wed 10/1

12:52 pm-12:23 am

1 stop8h 31m

Washington, D.C. Dulles Intl

Wed 10/8

6:25 am-2:50 pm

1 stop11h 25m

$250

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Sat 11/15

12:45 pm-10:15 pm

1 stop6h 30m

Washington, D.C. Dulles Intl

Sat 11/22

4:15 pm-9:00 pm

1 stop7h 45m

$255

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Mon 10/27

1:55 pm-11:30 pm

1 stop6h 35m

Washington, D.C. Dulles Intl

Thu 10/30

7:25 am-11:55 am

1 stop7h 30m

$260

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Thu 1/1

5:57 pm-6:13 am

1 stop9h 16m

Washington, D.C. Dulles Intl

Mon 1/5

6:21 pm-9:49 am

1 stop18h 28m

$261

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Thu 10/2

10:06 am-12:23 am

1 stop11h 17m

Washington, D.C. Dulles Intl

Wed 10/8

6:25 am-2:50 pm

1 stop11h 25m

$263

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Thu 10/2

8:45 am-7:23 pm

1 stop7h 38m

Washington, D.C. Dulles Intl

Tue 10/7

6:01 am-12:01 pm

1 stop9h 00m

$264

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Tue 10/28

6:35 am-4:57 pm

1 stop7h 22m

Washington, D.C. Dulles Intl

Fri 10/31

7:35 am-3:57 pm

1 stop11h 22m

$277

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Tue 9/30

12:35 pm-11:17 pm

1 stop7h 42m

Washington, D.C. Dulles Intl

Thu 10/9

6:18 am-12:24 pm

1 stop9h 06m

$279

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Thu 9/25

2:14 pm-9:17 am

2 stops16h 03m

Washington, D.C. Dulles Intl

Sun 9/28

10:09 pm-11:30 am

2 stops16h 21m

$295

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from San Jose to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, September is the cheapest month to fly from San Jose to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $268. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of September, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $332.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Wednesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $420. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from San Jose to Washington, D.C. Dulles Intl Airport for around $512.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from San Jose at noon is the least expensive time of day to depart. momondo users have found prices as low as $407 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $476 on average. Flights to Washington, D.C. Dulles Intl Airport from San Jose in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from San Jose when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $401 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from San Jose for as low as $276 on momondo.

How have San Jose to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of September 2025, prices for San Jose to Washington, D.C. Dulles Intl Airport flights are approximately 17% more expensive when compared to flights at the same time last year.

When to book flights from San Jose to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Jose to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Jose to Washington, D.C. Dulles Intl Airport (SJC to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Jose to Washington, D.C. Dulles Intl Airport

Direct flights

None
There are no direct flights from San Jose to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from San Jose to Washington, D.C. Dulles Intl Airport.
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  • How far is San Jose to Washington, D.C. Dulles Intl by plane?

    San Jose and Washington, D.C. Dulles Intl are 2391.6 mi apart from one another. A reasonable flight in good conditions will take 6h 30m.

  • When did momondo last update prices for flights from San Jose Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from San Jose Airport to Washington, D.C. Dulles Intl Airport are updated daily.

  • How many operators does momondo search for flights from San Jose Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from San Jose Airport to Washington, D.C. Dulles Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Jose Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The required travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from San Jose to Washington, D.C. Dulles Intl Airport?

Best airlines flying from San Jose to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from San Jose to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $220Free CancellationRating
5.8
3,177 reviews
Search Frontier flights
SouthwestPriceFrom $258Free CancellationRating
8.0
4,248 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $264Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
7,960 reviews
Search Delta flights
United AirlinesPriceFrom $276Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Gaithersburg
Glen Burnie

Why use momondo?

Why should I use momondo to find a flight deal from San Jose to Washington, D.C.?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Jose to Washington, D.C. for you.

Can I find flights from San Jose to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from San Jose on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Jose to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from San Jose.

I’m not ready to book a flight from San Jose to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from San Jose. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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