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Cheap flights from Washington, D.C. Dulles Intl Airport to San José from $102

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to San José departing on 10/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to San José

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:01 am - 7:37 pmIAD-SJO
15h 36m1 stop
United Airlines Logo
11:28 pm - 11:52 amSJO-IAD
11h 24m1 stop
$259United Airlines
Find Deal
Sun, Oct 19 - Tue, Dec 2
Avianca Logo
4:15 pm - 11:40 pmIAD-SJO
8h 25m1 stop
Avianca Logo
4:30 pm - 3:10 amSJO-IAD
9h 40m1 stop
$260Avianca
Find Deal
Wed, Feb 4 - Mon, Feb 9
Copa Airlines Logo
2:25 am - 4:52 pmIAD-SJO
16h 27m2 stops
Copa Airlines Logo
8:49 am - 4:20 amSJO-IAD
17h 31m1 stop
$261Copa Airlines
Find Deal
Wed, Oct 22 - Fri, Oct 31
Avianca Logo
11:55 pm - 3:50 amIAD-SJO
4h 55mnonstop
Avianca Logo
4:15 pm - 12:10 amSJO-IAD
6h 55m1 stop
$262Avianca
Find Deal
Thu, Jan 15 - Thu, Jan 22
Multiple Airlines Logo
1:25 am - 8:25 pmIAD-SJO
20h 00m1 stop
Multiple Airlines Logo
7:50 pm - 3:10 amSJO-IAD
6h 20m1 stop
$263Multiple Airlines
Find Deal
Fri, Nov 7 - Tue, Nov 11
Avianca Logo
1:30 am - 11:25 amIAD-SJO
10h 55m2 stops
Avianca Logo
5:10 pm - 10:35 pmSJO-IAD
4h 25mnonstop
$264Avianca
Find Deal
Wed, Jan 14 - Thu, Jan 22
Avianca Logo
4:00 am - 11:25 amIAD-SJO
9h 25m1 stop
Avianca Logo
7:50 pm - 4:10 amSJO-IAD
6h 20m1 stop
$265Avianca
Find Deal
Sat, Mar 7 - Thu, Mar 12
Copa Airlines Logo
2:25 am - 4:52 pmIAD-SJO
16h 27m2 stops
Copa Airlines Logo
9:17 am - 4:20 amSJO-IAD
17h 03m3 stops
$266Copa Airlines
Find Deal
Thu, Oct 23 - Mon, Oct 27
American Airlines Logo
6:25 am - 2:02 pmIAD-SJO
8h 37m1 stop
American Airlines Logo
11:32 am - 8:42 amSJO-IAD
20h 10m2 stops
$285American Airlines
Find Deal
Sun, Dec 7 - Sun, Dec 28
American Airlines Logo
11:34 am - 12:38 pmIAD-SJO
26h 04m1 stop
American Airlines Logo
8:00 am - 11:12 pmSJO-IAD
14h 12m2 stops
$286American Airlines
Find Deal
Wed, Jan 7 - Thu, Jan 15

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

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to San José, San José Province flight tickets
United Airlines
Oct 19
IAD6:01 amWashington, D.C. Dulles Intl
15h 36m
1 stop
SJO7:37 pmSan José Juan Santamaria Intl
Dec 2
SJO11:28 pmSan José Juan Santamaria Intl
11h 24m
1 stop
IAD11:52 amWashington, D.C. Dulles Intl
$259
Find similar
United Airlines
Oct 8
IAD3:00 pmWashington, D.C. Dulles Intl
18h 15m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
Oct 14
SJO7:55 amSan José Juan Santamaria Intl
13h 56m
1 stop
IAD11:51 pmWashington, D.C. Dulles Intl
$346
Find similar

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

Our best Avianca deals on Washington, D.C. Dulles Intl Airport to San José, San José Province flight tickets
Avianca
Feb 4
IAD4:15 pmWashington, D.C. Dulles Intl
8h 25m
1 stop
SJO11:40 pmSan José Juan Santamaria Intl
Feb 9
SJO4:30 pmSan José Juan Santamaria Intl
9h 40m
1 stop
IAD3:10 amWashington, D.C. Dulles Intl
$260
Find similar
Avianca
Jan 15
IAD11:55 pmWashington, D.C. Dulles Intl
4h 55m
SJO3:50 amSan José Juan Santamaria Intl
Jan 22
SJO4:15 pmSan José Juan Santamaria Intl
6h 55m
1 stop
IAD12:10 amWashington, D.C. Dulles Intl
$262
Find similar
Avianca
Jan 14
IAD1:30 amWashington, D.C. Dulles Intl
10h 55m
2 stops
SJO11:25 amSan José Juan Santamaria Intl
Jan 22
SJO5:10 pmSan José Juan Santamaria Intl
4h 25m
IAD10:35 pmWashington, D.C. Dulles Intl
$264
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to San José, San José Province 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 3, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San José, San José Province that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sun 10/19

6:01 am-7:37 pm

1 stop15h 36m

San José Juan Santamaria Intl

Tue 12/2

11:28 pm-11:52 am

1 stop11h 24m

$259

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Wed 2/4

4:15 pm-11:40 pm

1 stop8h 25m

San José Juan Santamaria Intl

Mon 2/9

4:30 pm-3:10 am

1 stop9h 40m

$260

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Wed 10/22

2:25 am-4:52 pm

2 stops16h 27m

San José Juan Santamaria Intl

Fri 10/31

8:49 am-4:20 am

1 stop17h 31m

$261

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Thu 1/15

11:55 pm-3:50 am

Nonstop4h 55m

San José Juan Santamaria Intl

Thu 1/22

4:15 pm-12:10 am

1 stop6h 55m

$262

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Fri 11/7

1:25 am-8:25 pm

1 stop20h 00m

San José Juan Santamaria Intl

Tue 11/11

7:50 pm-3:10 am

1 stop6h 20m

$263

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Wed 1/14

1:30 am-11:25 am

2 stops10h 55m

San José Juan Santamaria Intl

Thu 1/22

5:10 pm-10:35 pm

Nonstop4h 25m

$264

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sat 3/7

4:00 am-11:25 am

1 stop9h 25m

San José Juan Santamaria Intl

Thu 3/12

7:50 pm-4:10 am

1 stop6h 20m

$265

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Thu 10/23

2:25 am-4:52 pm

2 stops16h 27m

San José Juan Santamaria Intl

Mon 10/27

9:17 am-4:20 am

3 stops17h 03m

$266

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sun 12/7

6:25 am-2:02 pm

1 stop8h 37m

San José Juan Santamaria Intl

Sun 12/28

11:32 am-8:42 am

2 stops20h 10m

$285

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Wed 1/7

11:34 am-12:38 pm

1 stop26h 04m

San José Juan Santamaria Intl

Thu 1/15

8:00 am-11:12 pm

2 stops14h 12m

$286

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 Washington, D.C. Dulles Intl Airport to San José, San José Province

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 cheapest month to fly to San José, San José Province?

The month of September is, on average, the cheapest month to fly to San José, San José Province from Washington, D.C. Dulles Intl Airport, with most prices found around $304. If you’re not able to fly to San José, San José Province in September, then August is your next best option. Flight prices from Washington, D.C. Dulles Intl Airport to San José, San José Province during August average around $328.

What is the cheapest day to depart on your flight to San José, San José Province?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to San José, San José Province is on a Tuesday when prices can be found for as low as $368. The most expensive day to fly to San José, San José Province is Saturday, with ticket prices averaging around $680.

What is the cheapest time of day to depart on your flight to San José, San José Province?

In the afternoon is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to San José, San José Province when you can find flight prices for as low as $414. Flying to San José, San José Province in the afternoon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to San José, San José Province, so prices are often more expensive at around $779 per ticket.

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

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

How far in advance should I book a flight to San José, San José Province?

You are more likely to see cheaper flights to San José, San José Province from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San José, San José Province for around $397 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San José, San José Province from Washington, D.C. Dulles Intl Airport for as low as $347 on momondo.

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

There are 2 cabin classes available to choose from on Washington, D.C. Dulles Intl to San José Juan Santamaria 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 Washington, D.C. Dulles Intl Airport to San José, San José Province flights?

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

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

As of October 2025, prices for Washington, D.C. Dulles Intl Airport to San José, San José Province flights are approximately 18% more expensive when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to San José, San José Province according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to San José, San José Province (IAD to SJO) flight deals and tips

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

Best Price Found

$128

Fastest flight time

4h 55m

Direct flights

Mon, Tue, Wed, Fri and Sun

Airports in San José, San José Province

1 airport
The best one-way flight to San José, San José Province from Washington, D.C. Dulles Intl Airport in the past 72 hours is $128. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to San José, San José Province found on momondo in the last 72 hours is $324.
The fastest flight from Washington, D.C. Dulles Intl Airport to San José, San José Province takes 4h 55m
Direct flights go from Washington, D.C. Dulles Intl Airport to San José, San José Province on Monday, Tuesday, Wednesday, Friday and Sunday. The only airline offering direct flights is Avianca.
There is 1 airport near San José, San José Province: San José Juan Santamaria Intl (SJO)
Search flight deals

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

    Washington, D.C. Dulles Intl and San José Juan Santamaria Intl are 2045.0 mi apart from one another. In terms of flight time, this usually takes a little over 4h 55m.

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

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

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

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

  • What documentation or ID do you need to fly to San José Juan Santamaria Intl Airport?

    The required travel and health documents for your San José Juan Santamaria Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San José Juan Santamaria Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to San José, San José Province with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $174Free CancellationRating
7.9
7,966 reviews
Search Delta flights
Volaris El SalvadorPriceFrom $202Free CancellationRating
7.4
26 reviews
Search Volaris El Salvador flights
American AirlinesPriceFrom $237Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $238Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights
Copa AirlinesPriceFrom $256Free CancellationRating
7.6
1,542 reviews
Search Copa Airlines flights
AviancaPriceFrom $257Free CancellationRating
6.7
2,445 reviews
Search Avianca flights

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

    The lowest priced Avianca flight from Washington, D.C. Dulles Intl Airport to San José, San José Province from the last 72 hours was $257. Generally, Avianca has 4 flights on this route every week with an average price of $399. Avianca is rated 6.7/10 by our users.

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Manuel Antonio
Jacó
Alajuela
Monteverde
Heredia
Dominical
Santa Elena
Esterillos Este

Why use momondo?

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

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 Washington, D.C. to San José for you.

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

Yes. All flights to San José from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to San José.

I’m not ready to book a flight from Washington, D.C. to San José right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to San José now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San José and let you know when they change.

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