Cheap flights from San José to Washington, D.C. from $217

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
3:10 pm - 3:15 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
11h 05m1 stop San Salvador El Salvador Intl
Avianca Logo
2:30 am - 8:35 amIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
7h 05m1 stop Guatemala City La Aurora
$346Avianca
Sat, Jan 16 - Sat, Jan 23
Avianca Logo
7:45 pm - 3:15 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
6h 30m1 stop San Salvador El Salvador Intl
Avianca Logo
4:35 am - 11:25 amIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
7h 50m1 stop San Salvador El Salvador Intl
$347Avianca
Wed, Dec 2 - Sun, Dec 6
United Airlines Logo
2:15 pm - 7:59 pmSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
4h 44mnonstop
United Airlines Logo
10:54 pm - 1:22 pmIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
15h 28m1 stop Houston George Bush Intcntl
$349United Airlines
Thu, Dec 24 - Thu, Dec 31
United Airlines Logo
2:15 pm - 7:59 pmSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
4h 44mnonstop
United Airlines Logo
6:00 am - 1:22 pmIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
8h 22m1 stop Houston George Bush Intcntl
$349United Airlines
Mon, Dec 21 - Fri, Jan 1
Avianca Logo
5:25 pm - 2:15 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
6h 50m1 stop Guatemala City La Aurora
Avianca Logo
3:40 am - 8:30 amIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
6h 50m1 stop Guatemala City La Aurora
$349Avianca
Mon, May 3 - Thu, May 6
United Airlines Logo
2:15 pm - 7:59 pmSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
4h 44mnonstop
United Airlines Logo
6:00 am - 1:22 pmIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
8h 22m1 stop Houston George Bush Intcntl
$349United Airlines
Wed, Dec 23 - Thu, Dec 31
Copa Airlines Logo
9:59 am - 3:19 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
16h 20m1 stop Panama City Tocumen Intl
Copa Airlines Logo
4:22 am - 11:02 amIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
7h 40m1 stop Panama City Tocumen Intl
$353Copa Airlines
Sat, Dec 5 - Thu, Dec 10
Copa Airlines Logo
2:12 pm - 11:32 pmSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
8h 20m1 stop Panama City Tocumen Intl
Copa Airlines Logo
1:18 am - 8:18 amIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
8h 00m1 stop Panama City Tocumen Intl
$353Copa Airlines
Sat, Dec 5 - Wed, Dec 9
Delta Logo
7:00 am - 9:26 pmSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
13h 26m1 stop Atlanta Hartsfield-Jackson
Delta Logo
8:05 am - 10:15 pmIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
15h 10m1 stop Atlanta Hartsfield-Jackson
$356Delta
Thu, Nov 26 - Sat, Nov 28
American Airlines Logo
11:35 am - 8:41 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
20h 06m2 stops Miami Charlotte Douglas
American Airlines Logo
7:14 pm - 2:56 pmIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
20h 42m2 stops Charlotte Douglas Miami
$368American Airlines
Wed, Dec 23 - Tue, Jan 12

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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
Jan 16
SJO3:10 pmSan José Juan Santamaria Intl
11h 05m
1 stop
IAD3:15 amWashington, D.C. Dulles Intl
Jan 23
IAD2:30 amWashington, D.C. Dulles Intl
7h 05m
1 stop
SJO8:35 amSan José Juan Santamaria Intl
$346
Avianca
Dec 2
SJO7:45 pmSan José Juan Santamaria Intl
6h 30m
1 stop
IAD3:15 amWashington, D.C. Dulles Intl
Dec 6
IAD4:35 amWashington, D.C. Dulles Intl
7h 50m
1 stop
SJO11:25 amSan José Juan Santamaria Intl
$347
Avianca
May 3
SJO5:25 pmSan José Juan Santamaria Intl
6h 50m
1 stop
IAD2:15 amWashington, D.C. Dulles Intl
May 8
IAD5:45 amWashington, D.C. Dulles Intl
7h 45m
1 stop
SJO11:30 amSan José Juan Santamaria Intl
$350

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

Our best American Airlines deals on San José to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Dec 21
SJO12:43 amSan José Juan Santamaria Intl
20h 30m
2 stops
IAD10:13 pmWashington, D.C. Dulles Intl
Jan 12
IAD4:13 pmWashington, D.C. Dulles Intl
22h 47m
2 stops
SJO2:00 pmSan José Juan Santamaria Intl
$368
American Airlines
Nov 19
SJO12:37 amSan José Juan Santamaria Intl
12h 06m
1 stop
IAD1:43 pmWashington, D.C. Dulles Intl
Nov 23
IAD8:07 pmWashington, D.C. Dulles Intl
19h 44m
2 stops
SJO2:51 pmSan José Juan Santamaria Intl
$370
American Airlines
Jan 24
SJO3:56 pmSan José Juan Santamaria Intl
22h 44m
2 stops
IAD3:40 pmWashington, D.C. Dulles Intl
Jan 28
IAD5:08 pmWashington, D.C. Dulles Intl
20h 10m
2 stops
SJO12:18 pmSan José Juan Santamaria Intl
$373

momondo Fare Finder

 
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

San JoséWashington, D.C.

SJO San José Juan Santamaria Intl - IAD Washington, D.C. Dulles Intl

SJOIAD

San José Juan Santamaria Intl

Sat 1/16

3:10 pm-3:15 am

1 stop11h 05m

Washington, D.C. Dulles Intl

Sat 1/23

2:30 am-8:35 am

1 stop7h 05m

$346

San JoséWashington, D.C.

SJO San José Juan Santamaria Intl - IAD Washington, D.C. Dulles Intl

SJOIAD

San José Juan Santamaria Intl

Wed 12/2

7:45 pm-3:15 am

1 stop6h 30m

Washington, D.C. Dulles Intl

Sun 12/6

4:35 am-11:25 am

1 stop7h 50m

$347

San JoséWashington, D.C.

SJO San José Juan Santamaria Intl - IAD Washington, D.C. Dulles Intl

SJOIAD

San José Juan Santamaria Intl

Thu 12/24

2:15 pm-7:59 pm

Nonstop4h 44m

Washington, D.C. Dulles Intl

Thu 12/31

10:54 pm-1:22 pm

1 stop15h 28m

$349
Quickest round-trip

San JoséWashington, D.C.

SJO San José Juan Santamaria Intl - IAD Washington, D.C. Dulles Intl

SJOIAD

San José Juan Santamaria Intl

Mon 12/21

2:15 pm-7:59 pm

Nonstop4h 44m

Washington, D.C. Dulles Intl

Fri 1/1

6:00 am-1:22 pm

1 stop8h 22m

$349

San JoséWashington, D.C.

SJO San José Juan Santamaria Intl - IAD Washington, D.C. Dulles Intl

SJOIAD

San José Juan Santamaria Intl

Mon 5/3

5:25 pm-2:15 am

1 stop6h 50m

Washington, D.C. Dulles Intl

Thu 5/6

3:40 am-8:30 am

1 stop6h 50m

$349

San JoséWashington, D.C.

SJO San José Juan Santamaria Intl - IAD Washington, D.C. Dulles Intl

SJOIAD

San José Juan Santamaria Intl

Wed 12/23

2:15 pm-7:59 pm

Nonstop4h 44m

Washington, D.C. Dulles Intl

Thu 12/31

6:00 am-1:22 pm

1 stop8h 22m

$349

San JoséWashington, D.C.

SJO San José Juan Santamaria Intl - IAD Washington, D.C. Dulles Intl

SJOIAD

San José Juan Santamaria Intl

Sat 12/5

9:59 am-3:19 am

1 stop16h 20m

Washington, D.C. Dulles Intl

Thu 12/10

4:22 am-11:02 am

1 stop7h 40m

$353

San JoséWashington, D.C.

SJO San José Juan Santamaria Intl - IAD Washington, D.C. Dulles Intl

SJOIAD

San José Juan Santamaria Intl

Sat 12/5

2:12 pm-11:32 pm

1 stop8h 20m

Washington, D.C. Dulles Intl

Wed 12/9

1:18 am-8:18 am

1 stop8h 00m

$353

San JoséWashington, D.C.

SJO San José Juan Santamaria Intl - IAD Washington, D.C. Dulles Intl

SJOIAD

San José Juan Santamaria Intl

Thu 11/26

7:00 am-9:26 pm

1 stop13h 26m

Washington, D.C. Dulles Intl

Sat 11/28

8:05 am-10:15 pm

1 stop15h 10m

$356

San JoséWashington, D.C.

SJO San José Juan Santamaria Intl - IAD Washington, D.C. Dulles Intl

SJOIAD

San José Juan Santamaria Intl

Wed 12/23

11:35 am-8:41 am

2 stops20h 06m

Washington, D.C. Dulles Intl

Tue 1/12

7:14 pm-2:56 pm

2 stops20h 42m

$368

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

Prices are currently typical for flights on this route.

Typical prices usually range from $281 to $387.
The lowest price recently found on this route was $346.

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

In general, February 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 $305. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $331.

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 $226. 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 $612.

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 $241 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 $497 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 $366 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 $325 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.

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

As of November 2026, prices for San José to Washington, D.C. Dulles Intl Airport flights are approximately 1% cheaper 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

Best Price Found

$217

Fastest flight time

4h 44m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from San José in the past 72 hours is $217. The best round-trip flight deal from San José to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $346.
The fastest flight from San José to Washington, D.C. Dulles Intl Airport takes 4h 44m
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 44m 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
United AirlinesPriceFrom $216Free CancellationRating
7.3
10,491 reviews
Search United Airlines flights
AviancaPriceFrom $223Free CancellationRating
6.5
2,542 reviews
Search Avianca flights
Copa AirlinesPriceFrom $294Free CancellationRating
7.6
1,553 reviews
Search Copa Airlines flights
  • United Airlines Flights From San José to Washington, D.C. Dulles Intl Airport

    United Airlines operates around 1 flight 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 $377, but momondo users have found United Airlines deals from San José to Washington, D.C. Dulles Intl Airport from as low as $216 round-trip. United Airlines has been scored 7.3/10 in 10,494 reviews.

  • Avianca Flights From San José to Washington, D.C. Dulles Intl Airport

    The best Avianca deal for San José to Washington, D.C. Dulles Intl Airport flight tickets found on momondo in the last 72 hours was $223, round-trip. It should be noted that an average Avianca flight deal for this route in this time was higher, at $372 round-trip. Avianca operates 3 flights out of San José into Washington, D.C. Dulles Intl Airport in an average week, so prices vary by time and availability. 2,544 Avianca reviews by users on momondo have scored the airline at 6.5/10.

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
Fredericksburg
Winchester
Waldorf
Laurel
Gaithersburg
Woodbridge
Linthicum Heights
Rockville
Silver Spring
Sterling
Towson
Fairfax
Springfield
Glen Burnie
Edgewood
Chantilly

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
Tue 12/15
Tue 12/22

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