Cheap flights from San José to Washington, D.C. from $132

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 12/25. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

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
5:10 pm - 10:35 pmSJO-IAD
4h 25mnonstop
Avianca Logo
5:05 pm - 11:35 pmIAD-SJO
8h 30m1 stop
$215Avianca
Find Deal
Sat, Dec 13 - Tue, Mar 31
Avianca Logo
7:50 pm - 3:10 amSJO-IAD
6h 20m1 stop
Avianca Logo
11:55 pm - 3:50 amIAD-SJO
4h 55mnonstop
$216Avianca
Find Deal
Wed, Nov 26 - Thu, Dec 4
United Airlines Logo
2:20 pm - 11:28 amSJO-IAD
20h 08m1 stop
United Airlines Logo
10:10 pm - 11:25 amIAD-SJO
14h 15m1 stop
$217United Airlines
Find Deal
Tue, Nov 11 - Mon, Nov 24
Avianca Logo
7:50 pm - 3:10 amSJO-IAD
6h 20m1 stop
Avianca Logo
4:15 pm - 11:40 pmIAD-SJO
8h 25m1 stop
$219Avianca
Find Deal
Wed, Feb 11 - Tue, Feb 17
United Airlines Logo
9:40 am - 12:56 amSJO-IAD
14h 16m1 stop
United Airlines Logo
10:10 pm - 11:25 amIAD-SJO
14h 15m1 stop
$226United Airlines
Find Deal
Fri, Nov 14 - Mon, Nov 17
Multiple Airlines Logo
5:10 pm - 10:35 pmSJO-IAD
4h 25mnonstop
Multiple Airlines Logo
1:25 am - 8:25 pmIAD-SJO
20h 00m1 stop
$228Multiple Airlines
Find Deal
Tue, Jan 27 - Fri, Jan 30
American Airlines Logo
6:00 am - 11:08 pmSJO-IAD
16h 08m2 stops
American Airlines Logo
5:26 pm - 12:43 pmIAD-SJO
20h 17m2 stops
$230American Airlines
Find Deal
Tue, Dec 16 - Tue, Jan 13
American Airlines Logo
6:00 am - 11:07 pmSJO-IAD
16h 07m2 stops
American Airlines Logo
5:27 pm - 12:19 pmIAD-SJO
19h 52m2 stops
$232American Airlines
Find Deal
Fri, Nov 14 - Mon, Nov 17
Multiple Airlines Logo
5:10 pm - 10:35 pmSJO-IAD
4h 25mnonstop
Multiple Airlines Logo
1:25 am - 8:25 pmIAD-SJO
20h 00m1 stop
$238Multiple Airlines
Find Deal
Tue, Jan 27 - Fri, Jan 30
Delta Logo
7:00 am - 9:29 pmSJO-IAD
13h 29m1 stop
Delta Logo
12:30 pm - 10:20 pmIAD-SJO
10h 50m1 stop
$270Delta
Find Deal
Wed, Dec 3 - Mon, Dec 8

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
Dec 13
SJO5:10 pmSan José Juan Santamaria Intl
4h 25m
IAD10:35 pmWashington, D.C. Dulles Intl
Mar 31
IAD5:05 pmWashington, D.C. Dulles Intl
8h 30m
1 stop
SJO11:35 pmSan José Juan Santamaria Intl
Avianca
Nov 26
SJO7:50 pmSan José Juan Santamaria Intl
6h 20m
1 stop
IAD3:10 amWashington, D.C. Dulles Intl
Dec 4
IAD11:55 pmWashington, D.C. Dulles Intl
4h 55m
SJO3:50 amSan José Juan Santamaria Intl
Avianca
Feb 11
SJO7:50 pmSan José Juan Santamaria Intl
6h 20m
1 stop
IAD3:10 amWashington, D.C. Dulles Intl
Feb 17
IAD4:15 pmWashington, D.C. Dulles Intl
8h 25m
1 stop
SJO11:40 pmSan José Juan Santamaria Intl

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
Nov 11
SJO8:45 amSan José Juan Santamaria Intl
12h 27m
1 stop
IAD10:12 pmWashington, D.C. Dulles Intl
Nov 13
IAD6:03 pmWashington, D.C. Dulles Intl
15h 29m
1 stop
SJO8:32 amSan José Juan Santamaria Intl
United Airlines
Nov 14
SJO9:40 amSan José Juan Santamaria Intl
14h 16m
1 stop
IAD12:56 amWashington, D.C. Dulles Intl
Nov 17
IAD10:10 pmWashington, D.C. Dulles Intl
14h 15m
1 stop
SJO11:25 amSan José Juan Santamaria Intl
United Airlines
Nov 11
SJO2:20 pmSan José Juan Santamaria Intl
8h 24m
1 stop
IAD11:44 pmWashington, D.C. Dulles Intl
Nov 25
IAD6:00 amWashington, D.C. Dulles Intl
30h 25m
1 stop
SJO11:25 amSan José Juan Santamaria Intl

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 October 30, 2025.
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

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sat 12/13

5:10 pm-10:35 pm

Nonstop4h 25m

Washington, D.C. Dulles Intl

Tue 3/31

5:05 pm-11:35 pm

1 stop8h 30m

$215

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Wed 11/26

7:50 pm-3:10 am

1 stop6h 20m

Washington, D.C. Dulles Intl

Thu 12/4

11:55 pm-3:50 am

Nonstop4h 55m

$216

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 11/11

2:20 pm-11:28 am

1 stop20h 08m

Washington, D.C. Dulles Intl

Mon 11/24

10:10 pm-11:25 am

1 stop14h 15m

$217

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Wed 2/11

7:50 pm-3:10 am

1 stop6h 20m

Washington, D.C. Dulles Intl

Tue 2/17

4:15 pm-11:40 pm

1 stop8h 25m

$219

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 11/14

9:40 am-12:56 am

1 stop14h 16m

Washington, D.C. Dulles Intl

Mon 11/17

10:10 pm-11:25 am

1 stop14h 15m

$226

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 1/27

5:10 pm-10:35 pm

Nonstop4h 25m

Washington, D.C. Dulles Intl

Fri 1/30

1:25 am-8:25 pm

1 stop20h 00m

$228

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 12/16

6:00 am-11:08 pm

2 stops16h 08m

Washington, D.C. Dulles Intl

Tue 1/13

5:26 pm-12:43 pm

2 stops20h 17m

$230

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 11/14

6:00 am-11:07 pm

2 stops16h 07m

Washington, D.C. Dulles Intl

Mon 11/17

5:27 pm-12:19 pm

2 stops19h 52m

$232

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 1/27

5:10 pm-10:35 pm

Nonstop4h 25m

Washington, D.C. Dulles Intl

Fri 1/30

1:25 am-8:25 pm

1 stop20h 00m

$238

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Wed 12/3

7:00 am-9:29 pm

1 stop13h 29m

Washington, D.C. Dulles Intl

Mon 12/8

12:30 pm-10:20 pm

1 stop10h 50m

$270

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, October 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 $283. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of October, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $290.

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

Our data shows that Friday 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 $172. 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 $680.

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 evening is the least expensive time of day to depart. momondo users have found prices as low as $334 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $478 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 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 $316 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 $251 on momondo.

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

There are 3 cabin classes available to choose from on San José Juan Santamaria Intl to Washington, D.C. Dulles Intl 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?

You could potentially save up to 3% on your flight if you consider stops on a San José to Washington, D.C. Dulles Intl Airport flight.

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

As of October 2025, prices for San José to Washington, D.C. Dulles Intl Airport flights are approximately 9% 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

Best Price Found

$212

Fastest flight time

4h 25m

Direct flights

Mon, Tue, Wed, Fri and Sun
The best one-way flight to Washington, D.C. Dulles Intl Airport from San José in the past 72 hours is $212. 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 $445.
The fastest flight from San José to Washington, D.C. Dulles Intl Airport takes 4h 25m
Direct flights go from San José to Washington, D.C. Dulles Intl Airport on Monday, Tuesday, Wednesday, Friday and Sunday. There are no airlines offering direct flights.
  • 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 25m 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
Volaris El SalvadorPriceFrom $194Free CancellationRating
7.4
26 reviews
Search Volaris El Salvador flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
AviancaPriceFrom $222Free CancellationRating
6.6
2,467 reviews
Search Avianca flights
American AirlinesPriceFrom $226Free CancellationRating
7.2
11,034 reviews
Search American Airlines flights
DeltaPriceFrom $234Free CancellationRating
7.9
7,998 reviews
Search Delta flights
Copa AirlinesPriceFrom $286Free CancellationRating
7.6
1,561 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 $222 round-trip. Avianca has been scored 6.6/10 in 2,467 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
Gettysburg
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Gaithersburg
Fairfax
Sterling

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.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 11/29
Sat 12/6

Find better results for your trip to Washington, D.C.