Cheap flights from San José to Washington, D.C. from $207

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 José to Washington, D.C. departing on 7/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Avianca Logo
5:25 pm - 2:15 am
SJO
-
IAD
6h 50m
1 stop
Avianca Logo
4:10 am - 8:45 am
IAD
-
SJO
6h 35m
1 stop
$340Avianca
Mon, Sep 14 - Mon, Sep 28
Avianca Logo
7:45 pm - 4:20 am
SJO
-
IAD
6h 35m
1 stop
Avianca Logo
5:45 am - 11:30 am
IAD
-
SJO
7h 45m
1 stop
$341Avianca
Wed, Jul 15 - Tue, Jul 21
Avianca Logo
5:25 pm - 2:15 am
SJO
-
IAD
6h 50m
1 stop
Avianca Logo
5:45 am - 11:30 am
IAD
-
SJO
7h 45m
1 stop
$343Avianca
Sat, Sep 26 - Sat, Oct 3
Avianca Logo
3:10 pm - 4:20 am
SJO
-
IAD
11h 10m
1 stop
Avianca Logo
5:45 am - 11:30 am
IAD
-
SJO
7h 45m
1 stop
$345Avianca
Sun, Sep 27 - Sat, Oct 3
Avianca Logo
5:25 pm - 2:15 am
SJO
-
IAD
6h 50m
1 stop
Avianca Logo
1:30 am - 8:35 am
IAD
-
SJO
9h 05m
1 stop
$348Avianca
Thu, Oct 22 - Sat, Oct 31
Avianca Logo
3:10 pm - 2:45 am
SJO
-
IAD
9h 35m
1 stop
Avianca Logo
3:40 am - 8:30 am
IAD
-
SJO
6h 50m
1 stop
$350Avianca
Fri, Sep 11 - Mon, Sep 14
Avianca Logo
7:45 pm - 4:20 am
SJO
-
IAD
6h 35m
1 stop
Avianca Logo
5:35 pm - 11:40 pm
IAD
-
SJO
8h 05m
1 stop
$351Avianca
Wed, Jul 15 - Tue, Jul 21
Avianca Logo
4:35 pm - 2:15 am
SJO
-
IAD
7h 40m
1 stop
Avianca Logo
5:35 pm - 11:40 pm
IAD
-
SJO
8h 05m
1 stop
$352Avianca
Sun, Jul 19 - Sat, Jul 25
United Airlines Logo
12:44 pm - 11:19 pm
SJO
-
IAD
8h 35m
1 stop
United Airlines Logo
8:35 am - 7:15 am
IAD
-
SJO
24h 40m
1 stop
$354United Airlines
Fri, Jul 31 - Sat, Aug 22
United Airlines Logo
8:40 am - 6:00 am
SJO
-
IAD
19h 20m
1 stop
United Airlines Logo
8:59 am - 1:00 pm
IAD
-
SJO
5h 01mnonstop
$358United Airlines
Tue, Oct 27 - Sat, Nov 7

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Avianca flights from San José to Washington, D.C. Dulles Intl Airport

Our best Avianca deals on San José to Washington, D.C. Dulles Intl Airport flight tickets
Avianca
Sep 14
SJO5:25 pmSan José Juan Santamaria Intl
6h 50m
1 stop
IAD2:15 amWashington, D.C. Dulles Intl
Sep 28
IAD4:10 amWashington, D.C. Dulles Intl
6h 35m
1 stop
SJO8:45 amSan José Juan Santamaria Intl
$340
Avianca
Jul 15
SJO7:45 pmSan José Juan Santamaria Intl
6h 35m
1 stop
IAD4:20 amWashington, D.C. Dulles Intl
Jul 21
IAD5:45 amWashington, D.C. Dulles Intl
7h 45m
1 stop
SJO11:30 amSan José Juan Santamaria Intl
$341
Avianca
Sep 26
SJO5:25 pmSan José Juan Santamaria Intl
6h 50m
1 stop
IAD2:15 amWashington, D.C. Dulles Intl
Oct 3
IAD5:45 amWashington, D.C. Dulles Intl
7h 45m
1 stop
SJO11:30 amSan José Juan Santamaria Intl
$343

United Airlines flights from San José to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on San José to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Jul 31
SJO12:44 pmSan José Juan Santamaria Intl
8h 35m
1 stop
IAD11:19 pmWashington, D.C. Dulles Intl
Aug 22
IAD8:35 amWashington, D.C. Dulles Intl
24h 40m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
$354
United Airlines
Oct 27
SJO8:40 amSan José Juan Santamaria Intl
19h 20m
1 stop
IAD6:00 amWashington, D.C. Dulles Intl
Nov 7
IAD8:59 amWashington, D.C. Dulles Intl
5h 01m
SJO1:00 pmSan José Juan Santamaria Intl
$358
United Airlines
Oct 6
SJO12:44 pmSan José Juan Santamaria Intl
8h 15m
1 stop
IAD10:59 pmWashington, D.C. Dulles Intl
Oct 24
IAD6:15 amWashington, D.C. Dulles Intl
8h 06m
1 stop
SJO12:21 pmSan José Juan Santamaria Intl
$363

momondo Fare Finder

 
Customize your flight search to find flights from San José 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 June 30, 2026.
Use the filters below to find and compare flights from San José to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Mon 9/14

5:25 pm-2:15 am

1 stop6h 50m

Washington, D.C. Dulles Intl

Mon 9/28

4:10 am-8:45 am

1 stop6h 35m

$340

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Wed 7/15

7:45 pm-4:20 am

1 stop6h 35m

Washington, D.C. Dulles Intl

Tue 7/21

5:45 am-11:30 am

1 stop7h 45m

$341

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sat 9/26

5:25 pm-2:15 am

1 stop6h 50m

Washington, D.C. Dulles Intl

Sat 10/3

5:45 am-11:30 am

1 stop7h 45m

$343

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sun 9/27

3:10 pm-4:20 am

1 stop11h 10m

Washington, D.C. Dulles Intl

Sat 10/3

5:45 am-11:30 am

1 stop7h 45m

$345

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Thu 10/22

5:25 pm-2:15 am

1 stop6h 50m

Washington, D.C. Dulles Intl

Sat 10/31

1:30 am-8:35 am

1 stop9h 05m

$348

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 9/11

3:10 pm-2:45 am

1 stop9h 35m

Washington, D.C. Dulles Intl

Mon 9/14

3:40 am-8:30 am

1 stop6h 50m

$350

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Wed 7/15

7:45 pm-4:20 am

1 stop6h 35m

Washington, D.C. Dulles Intl

Tue 7/21

5:35 pm-11:40 pm

1 stop8h 05m

$351

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sun 7/19

4:35 pm-2:15 am

1 stop7h 40m

Washington, D.C. Dulles Intl

Sat 7/25

5:35 pm-11:40 pm

1 stop8h 05m

$352

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 7/31

12:44 pm-11:19 pm

1 stop8h 35m

Washington, D.C. Dulles Intl

Sat 8/22

8:35 am-7:15 am

1 stop24h 40m

$354

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 10/27

8:40 am-6:00 am

1 stop19h 20m

Washington, D.C. Dulles Intl

Sat 11/7

8:59 am-1:00 pm

Nonstop5h 01m

$358

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 José 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 typical price of a round-trip flight between San José and Washington, D.C. Dulles Intl Airport?

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

In general, November is the cheapest month to fly from San José 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 $261. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $268.

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

Our data shows that Tuesday 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 $235. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from San José to Washington, D.C. Dulles Intl Airport for around $648.

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 José in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $263 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $340 on average. Flights to Washington, D.C. Dulles Intl Airport from San José at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest San José Juan Santamaria Intl to Washington, D.C. Dulles Intl flight route?

Fly from San José Juan Santamaria Intl to Washington, D.C. Dulles Intl for the best San José Juan Santamaria Intl - Washington, D.C. Dulles Intl flight prices

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from San José 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 $326 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 José for as low as $283 on momondo.

What cabin class options are available on San José to Washington, D.C. Dulles Intl Airport flights?

There is only 1 cabin class available to choose from on San José to Washington, D.C. Dulles Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San José to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between San José to Washington, D.C. Dulles Intl Airport.

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

As of June 2026, prices for San José to Washington, D.C. Dulles Intl Airport flights are approximately 44% more expensive when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from San José 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 José to Washington, D.C. Dulles Intl Airport (SJO to IAD) flight deals and tips

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

Fastest flight time

4h 43m

Direct flights

Every day
The fastest flight from San José to Washington, D.C. Dulles Intl Airport takes 4h 43m
Direct flights go from San José to Washington, D.C. Dulles Intl Airport every day.

Frequently asked questions about flying from San José to Washington, D.C. Dulles Intl Airport

  • How far is San José Juan Santamaria Intl to Washington, D.C. Dulles Intl by plane?

    The straight-line distance from San José Juan Santamaria Intl to Washington, D.C. Dulles Intl is 2045.0 mi. 4h 43m is a normal flight duration for this route.

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

    Prices for flights from San José Juan Santamaria Intl Airport to Washington, D.C. Dulles Intl Airport refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San José Juan Santamaria Intl 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 travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from San José to Washington, D.C. Dulles Intl Airport?

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

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

Compare and see reviews for airlines that fly from San José to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom $201Free CancellationRating
6.5
2,529 reviews
Search Avianca flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
9,898 reviews
Search United Airlines flights
Copa AirlinesPriceFrom $274Free CancellationRating
7.6
1,566 reviews
Search Copa Airlines flights
  • Avianca Flights From San José to Washington, D.C. Dulles Intl Airport

    Avianca operates around 2 flights from San José to Washington, D.C. Dulles Intl Airport every week. The average price of these flights found in the last 72 hours has been $351, but momondo users have found Avianca deals from San José to Washington, D.C. Dulles Intl Airport from as low as $201 round-trip. Avianca has been scored 6.5/10 in 2,528 reviews.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Arlington
Gettysburg
Winchester
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Linthicum Heights
Rockville
Colonial Beach
Towson
Manassas
Silver Spring
Sterling
Tysons
Springfield
Bethesda

Why use momondo?

Why should I use momondo to find a flight deal from San José 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 José to Washington, D.C. for you.

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

All flight searches from San José to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for San José to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from San José 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 José. 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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1 adult
Thu 7/30
Thu 8/6

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