SJC - IAD

$126 Find Cheap Flights from San Jose to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Jose to Dulles Intl departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Jose to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Jose to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$251
Overall average: $390
Alaska Airlines
Wed 2/25Wed 3/4
SJC - IAD • 1 stop
Cheapest one-way
$126
Typical prices: $245-$322
United Airlines
Tue 3/3
SJC - IAD • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $251 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 45% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 14% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
1 day a week
There are direct flights from San Jose to Dulles Intl 1 day a week: Mon.
Direct flights
Direct flights
Direct flights
Direct flights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Jose to Dulles Intl (SJC-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Jose to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Jose to Dulles Intl

Wed, Feb 25 - Wed, Mar 4
Alaska Airlines Logo
8:05 pm - 5:27 pm
SJC
-
IAD
18h 22m
1 stop
Alaska Airlines Logo
6:20 pm - 9:47 am
IAD
-
SJC
18h 27m
1 stop
$251Alaska Airlines
Tue, Mar 3 - Wed, Mar 11
Alaska Airlines Logo
7:00 am - 5:27 pm
SJC
-
IAD
7h 27m
1 stop
Alaska Airlines Logo
7:05 am - 1:42 pm
IAD
-
SJC
9h 37m
1 stop
$254Alaska Airlines
Sat, Feb 28 - Sat, Mar 7
Delta Logo
11:45 am - 11:10 pm
SJC
-
IAD
8h 25m
1 stop
Delta Logo
6:00 am - 12:39 pm
IAD
-
SJC
9h 39m
1 stop
$257Delta
Tue, Mar 3 - Tue, Mar 10
American Airlines Logo
11:01 am - 10:53 pm
SJC
-
IAD
8h 52m
1 stop
American Airlines Logo
3:11 pm - 10:32 pm
IAD
-
SJC
10h 21m
2 stops
$259American Airlines
Sat, Feb 28 - Sat, Mar 7
Delta Logo
6:20 am - 11:09 pm
SJC
-
IAD
13h 49m
2 stops
Delta Logo
6:00 am - 12:39 pm
IAD
-
SJC
9h 39m
1 stop
$262Delta
Tue, Mar 3 - Tue, Mar 10
American Airlines Logo
6:00 am - 8:30 pm
SJC
-
IAD
11h 30m
2 stops
American Airlines Logo
3:11 pm - 10:32 pm
IAD
-
SJC
10h 21m
2 stops
$264American Airlines
Tue, Mar 3 - Wed, Mar 11
Delta Logo
6:30 pm - 9:13 am
SJC
-
IAD
11h 43m
2 stops
Delta Logo
12:47 pm - 10:02 pm
IAD
-
SJC
12h 15m
2 stops
$267Delta
Tue, Feb 24 - Mon, Mar 2
Alaska Airlines Logo
7:00 am - 5:27 pm
SJC
-
IAD
7h 27m
1 stop
Alaska Airlines Logo
6:27 pm - 10:28 am
IAD
-
SJC
19h 01m
1 stop
$274Alaska Airlines
Thu, Mar 5 - Tue, Mar 10
Alaska Airlines Logo
4:59 pm - 5:40 am
SJC
-
IAD
9h 41m
1 stop
Alaska Airlines Logo
7:05 am - 1:42 pm
IAD
-
SJC
9h 37m
1 stop
$277Alaska Airlines
Mon, Mar 2 - Tue, Mar 10
Delta Logo
1:57 pm - 12:21 am
SJC
-
IAD
7h 24m
1 stop
Delta Logo
7:18 am - 2:39 pm
IAD
-
SJC
10h 21m
2 stops
$282Delta
Booking Insights

KAYAK's insights & trends for San Jose to Dulles Intl flights

Get data-powered insights and trends into flights from San Jose to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Jose to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Jose to Washington, D.C. Dulles Intl Airport is April, where tickets cost $329 (return) on average. On the other hand, the most expensive months are October and July, where the average cost of round-trip tickets is $414 and $413 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Jose to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Jose to Washington, D.C. Dulles Intl Airport, you should book around 3 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$126
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from San Jose to Washington Dulles Airport

When to book flights from San Jose to Dulles Intl

Are your dates flexible? Find out the best times to travel from San Jose to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Jose to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from San Jose to Washington, D.C. Dulles Intl Airport was $126 for a one-way ticket and $251 for a round-trip.

  • Do I need a passport to fly between San Jose and Washington Dulles Airport?

    A passport is not required to fly from San Jose to Washington Dulles Airport.

  • Which aircraft models fly most regularly from San Jose to Washington Dulles Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Jose to Washington Dulles Airport?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between San Jose and Washington Dulles Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from San Jose to Washington Dulles Airport?

    You can catch a nonstop flight from San Jose to Washington Dulles Airport on Monday.

  • Which is the best airline for flights from San Jose to Washington, D.C., Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from San Jose to Washington, D.C. are Southwest and Alaska Airlines. With an average price for the route of $411 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $379 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from San Jose to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Jose to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Jose to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from San Jose is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Jose to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back to San Jose with another airline. Booking your flights between San Jose and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Jose to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport from San Jose up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from San Jose to Washington Dulles Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Jose to Washington, D.C. Dulles Intl.
Find which airlines fly direct from San Jose Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

San Jose to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to San Jose

See more direct flights

Reviews of the top 5 airlines serving from San Jose to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from San Jose to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Jose to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11829 reviews
7.8Comfort
7.1Food
7.0Entertainment
8.1Boarding
8.5Crew
Airline reviews

The flights were all late and they would not refund my money

2.0 MediocreAnonymous, Dec 2025
LAX - DCA
Read more Alaska Airlines reviews

The flights were all late and they would not refund my money

I wasn’t able to check in prior to arriving at the airport, I was told by the agent I may not get a seat on the plane as others were waiting for seats, I sat there for 2 hours before being assigned a seat, very stressful. The plane was delayed. Overall not a great travel experience for a 44 minute flight.

Comfort level was below par. Food selection was non-existent. Paying $35 for 1st bag is never appreciated. I will not fly them again. I am actually trying to change my return flight.

Larger seats and more room would elevate the experience. Otherwise, it was good!

I recently traveled with my service animal, and before boarding, a gate agent kindly arranged for me to have an empty seat next to me to give my dog more space. However, once on board, a male crew member spoke to me in a rude and loud tone, insisting my dog stay on the floor or my lap—even after I explained what the gate agent had approved. His tone and behavior were unprofessional and made me feel uncomfortable in front of other passengers. I understand and respect airline policies, but I would appreciate if this could be reviewed to ensure better awareness and sensitivity toward passengers traveling with service animals. Thank you for your understanding.

Check in went pretty well and you didn't lose my bag. After I got a drink from the drink cart they charged me for it, and at the crazy overpriced airport rates. Never had that happen before, is that an american thing? what madness.

I was delayed several times. Missed a very important event. The airline only provided a $12 voucher after being delayed 3 times.

One the nicest and great air crews I’ve experienced and I’ve flown a lot

Seattle airport terminal was a nightmare to navigate. Coming g off a cruise boat etc. Lack of convient Restrooms a major issue. Once able to get to boarding Alaska Air it was good experience.

Appreciated the upgrade on the saver ticket. Made the 5 hour flight bearable.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Great flight but super high price. Glad it was a business trip and not personal

3 hour delay. Had to change plans and was still delayed.

We got exit row seats both flights. Everything was running on time

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

The seats were comfortable and we had leg room. Great entertainment.

The flight crew where really good. Better then the crew from BNE to SFO

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

l really enjoy very much the flight was very pleasant

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

The worst. We never made our connection and they did absolutely nothing to help us at the airport.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Everything you need to know for your flight from San Jose to Dulles Intl

Information on your arrival and departure airports