SJC - IAD

$133 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 7/9. 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
$276
Typical prices: $276-$538
Alaska Airlines, Frontier
Fri 8/28Mon 8/31
SJC - IAD • 1 stop
Cheapest one-way
$133
Typical prices: $149-$380
Frontier
Thu 7/9
SJC - IAD • 1 stop
Top airlines
Cheapest • from $280 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Jose and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $212 (round-trip)
Shortest trip • 7h 04m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 15% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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

Fri, Aug 28 - Mon, Aug 31
Multiple Airlines Logo
7:29 am - 6:14 pm
SJC
-
IAD
7h 45m
1 stop
Multiple Airlines Logo
8:59 am - 1:22 pm
IAD
-
SJC
7h 23m
1 stop
$276Multiple Airlines
Mon, Aug 24 - Sun, Aug 30
Frontier Logo
8:14 pm - 8:04 am
SJC
-
IAD
32h 50m
2 stops
Frontier Logo
8:59 am - 1:22 pm
IAD
-
SJC
31h 23m
1 stop
$280Frontier
Mon, Aug 24 - Sun, Aug 30
Frontier Logo
8:14 pm - 8:04 am
SJC
-
IAD
32h 50m
2 stops
Frontier Logo
8:59 am - 1:22 pm
IAD
-
SJC
31h 23m
1 stop
$282Frontier
Mon, Jul 20 - Mon, Jul 27
Multiple Airlines Logo
2:12 pm - 8:20 am
SJC
-
IAD
15h 08m
1 stop
Multiple Airlines Logo
7:53 pm - 9:26 am
IAD
-
SJC
16h 33m
1 stop
$284Multiple Airlines
Thu, Aug 27 - Sun, Aug 30
Frontier Logo
1:02 pm - 8:04 am
SJC
-
IAD
16h 02m
1 stop
Frontier Logo
8:59 am - 1:22 pm
IAD
-
SJC
31h 23m
1 stop
$286Frontier
Mon, Aug 24 - Wed, Aug 26
Frontier Logo
2:17 pm - 8:04 am
SJC
-
IAD
14h 47m
1 stop
Frontier Logo
8:59 am - 12:07 pm
IAD
-
SJC
30h 08m
1 stop
$287Frontier
Thu, Aug 6 - Sat, Aug 15
Frontier Logo
2:12 pm - 8:20 am
SJC
-
IAD
15h 08m
1 stop
Frontier Logo
9:30 am - 7:28 pm
IAD
-
SJC
12h 58m
2 stops
$289Frontier
Thu, Aug 13 - Tue, Aug 18
United Airlines Logo
6:37 pm - 5:25 am
SJC
-
IAD
7h 48m
1 stop
United Airlines Logo
5:15 pm - 10:50 pm
IAD
-
SJC
8h 35m
1 stop
$290United Airlines
Mon, Aug 24 - Wed, Aug 26
Frontier Logo
2:17 pm - 8:04 am
SJC
-
IAD
14h 47m
1 stop
Frontier Logo
8:59 am - 12:07 pm
IAD
-
SJC
30h 08m
1 stop
$291Frontier
Fri, Aug 28 - Sun, Aug 30
Frontier Logo
2:17 pm - 8:04 am
SJC
-
IAD
14h 47m
1 stop
Frontier Logo
8:59 am - 1:22 pm
IAD
-
SJC
31h 23m
1 stop
$293Frontier
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.

How much is a round-trip flight from San Jose, California to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Jose, California to Washington, D.C. Dulles Intl Airport departing in August.

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 May, where tickets cost $356 (return) on average. On the other hand, the most expensive months are February and June, where the average cost of round-trip tickets is $540 and $538 respectively.

Good to know

Low seasonFebruary
Cheapest flight$133
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly and prices are also 15% 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 5 days, the lowest price for a flight from San Jose to Washington, D.C. Dulles Intl Airport was $133 for a one-way ticket and $276 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.

  • 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 $398 and an overall rating of 7.9, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $403 and an overall rating of 7.9.

  • 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.

Reviews of the top 4 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.
7.9
Alaska AirlinesOverall score based on 12581 reviews
8.1Boarding
7.8Comfort
7.0Food
7.0Entertainment
8.5Crew
Airline reviews

Great flight, no bumps to speak of, pleasant crew, good inflight entertainment choices

10.0 ExcellentVirginia, Jul 2025
SFO - IAD
Read more Alaska Airlines reviews

Great flight, no bumps to speak of, pleasant crew, good inflight entertainment choices

A cheerful and effective crew. Tasty pre-order food options.

The flight was delayed by 3 hours and 30 minutes without any explanation.

Plane was ok. I would have liked to watch movies with a screen on the seat, and head phone were not provided. Most importantly the left left and arrived on time.

Flight was excellent , crew were very helpful and kind. No entertainment was needed as it was an overnight flight. Keep up the great work. Thank you 😊

More transparency about the fact that the aircraft is a Boeing 737-max. The flight was fine and the plane is comfortable but giving all the issues that aircraft has had, there needs to be more transparency that Alaska is using it.

Was on a red eye departed at 9pm and arrived at 5 am...we were all asleep before snacks and drinks. We were happy we got on seated and comfortable. We arrive sleepy safe and sound. That's a win! Thank you Alaska Airlines and staff!

I had a good experience and the crew was very nice and helpful.

Soda cans were mini-size; snacks were teeny. Options for entertainment on trans-continent flights were bad - no seat screens and no way to support device (as seen on other airlines) so had to hold device in position. Just overall, not good (compared to United)

First time traveling with them and they were great leaving on time arriving on time very clean planes 😊

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

Forget beverage, they didn't even have water for half the passangers?

The flight was delayed about 20 minutes, but this was an evening flight, so it comes as no surprise. This flight came a good 1.5 days ahead of hurricane Helene which was still far out in the gulf. However, the flight never removed the seated buckle light. The staff announced from the beginning that due to the bad weather (I suppose the hurricane a day and a half away) they would have to do an abbreviated service with water and a snack. I am fine with their water and snack offering, but this was one of the smoothest flights I've had in years. If Southwest believes a flight like this requires everyone to remain seated, then all of their flights should remain buckled for the entire flight. I cannot help but wonder if things like this are a sneaky way to cut back on expenses since the airline is currently under a lot of pressure to reduce costs.

Flight was not full! Had a whole row to myself.

Although the flight was delayed, but the crew was amazing. They did the best they could to make the time enjoyable.

Wifi didn’t work, no service, seats are hard as rocks

My experience was find with Southwest. The only issue I have is...at the exact time for me to check in...I don't understand how I always end up in C.

Very good flight. Crew was great. No issues and we even arrived early.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

The flight was smooth, the crew was great but the plane was quite old

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Flight was warm for first few hours and quite rough

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 Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

1st flight had mechanical issues after we boarded and almost took off. They tried to fix on runway but couldn’t do we went back to the gate. They couldn’t fix it there either. So we had to deplane and board another plane 2 hrs later. All in all our flight was delayed 4 hrs so we had to cancel some business meeting we had in London for the morning since we were supposed to arrive at 7am and did not arrive until 11:45am. Also, the 2nd plane had mechanical issues as well but fortunately they were able to fix on runway.

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

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

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Luggage management is poor, my missing luggage is still lingering.

Lost luggage again. Our second trip to Mykonos, and 2nd time no luggage.

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

Information on your arrival and departure airports