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San José

$108+ Cheap flights from Dulles Intl (IAD) to San José (SJO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJO
Aug 31 — Sep 71
Sun 8/31
Sun 9/7
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to San José Juan Santamaria Intl are usually found in September or May, booked 80 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Dulles Intl to San José

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to San José (SJO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 26, 2025.

Round-trip from

$256
(United Airlines)

One-way from

$108
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$345

Good round-trip deal

$354 or less

Good one-way deal

$201 or less
From Washington, D.C. Dulles Intl to San José Juan Santamaria Intl
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One-way flight from Washington, D.C. Dulles Intl to San José Juan Santamaria Intl
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Highest demand for flights based on searches. 15% potential increase in price ($71 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to San José Juan Santamaria Intl.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to San José Juan Santamaria Intl.
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Find flight deals from Dulles Intl to San José

Cheapest flights from Dulles Intl to San José
Explore the most affordable flight options available from Dulles Intl to San José. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2025.

This United Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:10 pmIAD - SJO
1 stop14h 15mUnited Airlines
Tue 11/1112:35 pmSJO - IAD
1 stop8h 37mUnited Airlines
Deal found 8/24$256
This Avianca deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/251:05 amIAD - SJO
Nonstop4h 30mAvianca
Sat 8/305:10 pmSJO - IAD
Nonstop4h 35mAvianca
Deal found 8/24$257
This Trip.com deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/232:37 amIAD - SJO
1 stop13h 20mMultiple Airlines
Tue 9/304:20 pmSJO - IAD
1 stop6h 55mMultiple Airlines
Deal found 8/25$258
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:55 pmIAD - SJO
Nonstop4h 40mAvianca
Wed 12/174:30 pmSJO - IAD
1 stop8h 10mAvianca
Deal found 8/23$259
This Copa Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/154:34 pmIAD - SJO
1 stop17h 45mCopa Airlines
Thu 9/189:17 amSJO - IAD
2 stops17h 03mCopa Airlines
Deal found 8/26$260
This Copa Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/73:32 pmIAD - SJO
1 stop17h 47mCopa Airlines
Tue 11/116:07 pmSJO - IAD
1 stop8h 15mCopa Airlines
Deal found 8/26$261
This American Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/88:09 pmIAD - SJO
1 stop17h 13mAmerican Airlines
Sat 11/156:22 amSJO - IAD
1 stop15h 06mAmerican Airlines
Deal found 8/26$262
This United Airlines deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:05 pmIAD - SJO
1 stop16h 21mUnited Airlines
Fri 9/191:30 pmSJO - IAD
1 stop19h 58mUnited Airlines
Deal found 8/25$263
This Priceline deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/251:05 amIAD - SJO
Nonstop4h 30mAvianca
Thu 8/285:10 pmSJO - IAD
Nonstop4h 35mAvianca
Deal found 8/23$265
This American Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/89:12 amIAD - SJO
2 stops14h 03mAmerican Airlines
Mon 11/171:12 pmSJO - IAD
2 stops20h 07mAmerican Airlines
Deal found 8/24$266
This Priceline deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/72:35 amIAD - SJO
1 stop7h 05mAvianca
Thu 10/163:05 pmSJO - IAD
1 stop9h 40mAvianca
Deal found 8/23$267

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to San José 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, Cheapflights users made 2,558,603 searches. Data last updated August 26, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San José that are best for you.

Fly from

Dulles Intl

Fly to

San José

Route

Depart

Return

Price

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Fri 11/7

10:10 pm-11:25 am

1 stop14h 15m

San José Juan Santamaria Intl

Thu 11/13

12:35 pm-10:12 pm

1 stop8h 37m

$256

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Fri 11/7

10:10 pm-11:25 am

1 stop14h 15m

San José Juan Santamaria Intl

Tue 11/11

12:35 pm-10:12 pm

1 stop8h 37m

$256

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Tue 2/3

1:30 am-7:45 am

1 stop7h 15m

San José Juan Santamaria Intl

Mon 2/9

4:15 pm-12:10 am

1 stop6h 55m

$257

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Thu 12/11

11:55 pm-3:35 am

Nonstop4h 40m

San José Juan Santamaria Intl

Wed 12/17

4:30 pm-1:40 am

1 stop8h 10m

$259

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sun 9/7

4:34 pm-4:52 pm

3 stops26h 18m

San José Juan Santamaria Intl

Wed 9/10

10:57 am-4:20 am

1 stop15h 23m

$260

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Wed 2/4

3:34 pm-7:06 am

1 stop16h 32m

San José Juan Santamaria Intl

Mon 2/9

9:17 am-3:15 am

3 stops16h 58m

$260

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Wed 10/1

4:41 pm-7:34 am

1 stop16h 53m

San José Juan Santamaria Intl

Mon 10/6

9:17 am-4:20 am

3 stops17h 03m

$260

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Mon 9/15

4:34 pm-8:19 am

1 stop17h 45m

San José Juan Santamaria Intl

Thu 9/18

9:17 am-4:20 am

2 stops17h 03m

$260

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Thu 9/11

4:34 pm-4:52 pm

3 stops26h 18m

San José Juan Santamaria Intl

Mon 9/15

8:49 am-12:30 am

1 stop13h 41m

$260

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sun 9/7

4:34 pm-4:52 pm

3 stops26h 18m

San José Juan Santamaria Intl

Thu 12/11

6:07 pm-3:22 am

1 stop8h 15m

$260

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/26

Showing 1-10 of 20 results
1
2

Best time to book a flight from Dulles Intl to San José

Have a flexible travel schedule? Discover the best time to fly to San José from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to San José

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to San José. Price data was last updated on August 22, 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to San José, San José Province may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to San José, San José Province?

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San José, San José Province (average of $398). Flying from Washington, D.C. Dulles Intl Airport to San José, San José Province in March is currently the most expensive (average of $555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to SJO?

Find hourly flight availability from Dulles Intl to San José. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 26, 2025.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to San José, San José Province is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 57% on airfare.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to San José, San José Province?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to San José. Price data was last updated on August 24, 2025.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to San José, San José Province flight should consider departing on Saturday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to San José, San José Province?

Reviews of airlines servicing San José

Get insights into the airlines that provide service to San José. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San José. Reviews last updated August 26, 2025.
Read reviews from past customers who have flown Copa Airlines, United Airlines, and American Airlines from Washington, D.C. Dulles Intl Airport to San José. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.5
Good
1,515 reviews

Comfort

7.4

Crew

8.1

Entertainment

6.8

Food

6.8

Boarding

7.8

Overall

7.5

Reviews

1 / 20
4.0
Okay

Paul,Jun 2025

PTY - MIA

The boarding process was terrible. No one followed the group numbers. Everyone got up and stood in the tiles upon landing. People kept getting up during the meal and beverage service to go the bathrooms, the crew had to go back and forth in the isles, the service took forever.
Copa Airlines
7.5
Good
1,515 reviews
Copa Airlines
7.5
Good
1,515 reviews

Comfort

7.4

Crew

8.1

Entertainment

6.8

Food

6.8

Boarding

7.8

Overall

7.5

Reviews

1 / 20
4.0
Okay

Paul,Jun 2025

PTY - MIA

The boarding process was terrible. No one followed the group numbers. Everyone got up and stood in the tiles upon landing. People kept getting up during the meal and beverage service to go the bathrooms, the crew had to go back and forth in the isles, the service took forever.
United Airlines
7.4
Good
8,943 reviews
Copa Airlines
7.5
Good
1,515 reviews

Comfort

7.4

Crew

8.1

Entertainment

6.8

Food

6.8

Boarding

7.8

Overall

7.5

Reviews

1 / 20
4.0
Okay

Paul,Jun 2025

PTY - MIA

The boarding process was terrible. No one followed the group numbers. Everyone got up and stood in the tiles upon landing. People kept getting up during the meal and beverage service to go the bathrooms, the crew had to go back and forth in the isles, the service took forever.
American Airlines
7.2
Good
10,000 reviews
Copa Airlines
7.5
Good
1,515 reviews

Comfort

7.4

Crew

8.1

Entertainment

6.8

Food

6.8

Boarding

7.8

Overall

7.5

Reviews

1 / 20
4.0
Okay

Paul,Jun 2025

PTY - MIA

The boarding process was terrible. No one followed the group numbers. Everyone got up and stood in the tiles upon landing. People kept getting up during the meal and beverage service to go the bathrooms, the crew had to go back and forth in the isles, the service took forever.
Avianca
6.7
Okay
2,418 reviews
Copa Airlines
7.5
Good
1,515 reviews

Comfort

7.4

Crew

8.1

Entertainment

6.8

Food

6.8

Boarding

7.8

Overall

7.5

Reviews

1 / 20
4.0
Okay

Paul,Jun 2025

PTY - MIA

The boarding process was terrible. No one followed the group numbers. Everyone got up and stood in the tiles upon landing. People kept getting up during the meal and beverage service to go the bathrooms, the crew had to go back and forth in the isles, the service took forever.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to San José. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San José from Washington, D.C. Dulles Intl?

    Most people fly into San José Juan Santamaria Intl (SJO) if they book a flight to San José from Washington, D.C. Dulles Intl. On average, Juan Santamaria Intl has 0 inbound flights from Washington, D.C. Dulles Intl per day from 6 airlines. San José Juan Santamaria Intl is conveniently located just 8.8 mi from San José’s city center.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to San José, San José Province?

    There are many flights that can get you from Washington, D.C. Dulles Intl Airport to San José, San José Province in 7h 15m. Fly via United Airlines, Avianca, or Copa Airlines to get the fastest option. There are 2042 mi between Washington, D.C. Dulles Intl Airport and San José, San José Province. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to San José, San José Province round-trip?

    Flying on Delta is currently your cheapest option to San José, San José Province, with prices starting at $174. Additional round-trip tickets that might be worth considering are offered by Volaris El Salvador and United Airlines, with the lowest prices starting at $200 and $215, respectively. You may be able to fly from Washington, D.C. Dulles Intl Airport to San José, San José Province for 55% less than the average price by searching for these airlines.

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to San José, San José Province?

    Looking at all options, your cheapest flight can be booked for $124. While the most popular route (Washington, D.C. Dulles Intl - San José Juan Santamaria Intl) can be booked for $238 on average our data indicates $371 when flying from Washington, D.C. Dulles Intl Airport to San José, San José Province.

  • Where are the most common layover locations when flying from Washington, D.C. Dulles Intl Airport to San José, San José Province?

    The most popular layover on flights from Washington, D.C. Dulles Intl Airport to San José, San José Province is Panama City. San Salvador is the second most popular location for layovers on flights from Washington, D.C. Dulles Intl Airport to San José, San José Province.

  • What are some popular things to do or see while on a layover in Panama City?

    If you're on a layover in Panama City and looking for things to do, consider visiting Panama Old Cathedral, Amador Causeway, or Panama Canal. Panama Old Cathedral, Amador Causeway, and Panama Canal can be visited by traveling about 13.2 mi, 14.7 mi, and 15.1 mi respectively from Panama City Tocumen Intl. Those on a layover in Panama City in need of a rental car can book one at Panama City Tocumen Intl for about $15.

  • Where are the least popular layover locations for Washington, D.C. Dulles Intl Airport to San José, San José Province flights?

    Of the flights from Washington, D.C. Dulles Intl Airport to San José, San José Province that have layovers, the fewest flights stop in Guatemala City.

  • Can I find deals for flights from Dulles Intl to San José that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to San José flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to San José?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to San José.

  • Can I find deals for business class flights from Dulles Intl to San José?

    Yes. Cheapflights offers flight deals from Dulles Intl to San José by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to San José, San José Province?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to San José, San José Province (average of $398). Flying from Washington, D.C. Dulles Intl Airport to San José, San José Province in March is currently the most expensive (average of $555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San José?

Book flights to San José if you plan to visit one of these locations
Heredia
Manuel Antonio
Alajuela
Monteverde
Jacó

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Alternative routes for Dulles Intl to San José

See prices for flight routes from nearby airports that may be better suited for you.
Baltimore to San José flights
Reagan-National to San José flights
Dulles Intl to Liberia flights
Baltimore to Liberia flights
Reagan-National to Liberia flights

Top 6 airlines flying from Dulles Intl to San José

Discover the top 6 airlines that operate flights from Dulles Intl to San José. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$174Average$483FlexibilityNo cancel feeOn-timeN/A
Volaris El SalvadorCheapest$200Average$291FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$215Average$616FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$236Average$490FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$259Average$396FlexibilityNo cancel feeOn-time70%
AviancaCheapest$259Average$393FlexibilityNo cancel feeOn-time71%

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