What are the most popular airlines that fly from San José, San José Province to Washington, D.C. Dulles Intl Airport?

Consider American Airlines, Avianca or Copa Airlines when booking your flight. These represent the most popular airlines when flying from San José, San José Province to Washington, D.C. Dulles Intl Airport.

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

Departing on a Sunday is a good option for securing a great price. You can expect to save up to 130% when planning your travel around this day of the week.

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

Most people fly from San José Juan Santamaria Intl (SJO) if they book a flight from San José to Washington, D.C. Dulles Intl. On average, Juan Santamaria Intl has 1 outbound flight to 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.

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

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

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

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

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

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

$136+ Flights from San José to Washington, D.C. Dulles Intl Airport

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Cheapflights Tip: The best prices from San José Juan Santamaria Intl to Washington, D.C. Dulles Intl are usually found in October or February, booked 67 days in advance, depart on a Monday or Friday and return on a Tuesday

Cheap flight deals from San José to Dulles Intl

Round-trip from	$233 (Mytrip)
One-way from	$136 (CheapOair)
Popular in	December
Cheapest in	October
Average price	$354
Good round-trip deal	$248 or less
Good one-way deal	$145 or less

From San José Juan Santamaria Intl to Washington, D.C. Dulles Intl

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One-way flight from San José Juan Santamaria Intl to Washington, D.C. Dulles Intl

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High demand for flights, 0% potential price rise

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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Price to beat on a round-trip flight from San José Juan Santamaria Intl to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from San José Juan Santamaria Intl to Washington, D.C. Dulles Intl.

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Find flight deals from San José to Dulles Intl

Cheapest flights from San José to Dulles Intl
Explore the most affordable flight options available from San José to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Sun 12/212:30 pmSJO - IAD

Nonstop4h 42mUnited Airlines

Sun 1/410:06 pmIAD - SJO

1 stop16h 11mUnited Airlines

Deal found 6/10

$232

Tue 7/294:20 pmSJO - IAD

1 stop6h 55mAvianca

Mon 8/41:05 amIAD - SJO

Nonstop4h 30mAvianca

Deal found 6/10

$233

Thu 9/115:00 pmSJO - IAD

1 stop17h 37mMultiple Airlines

Thu 9/182:25 pmIAD - SJO

1 stop18h 19mMultiple Airlines

Deal found 6/10

$235

Wed 7/162:42 pmSJO - IAD

1 stop19h 58mVolaris El Salvador

Sat 7/262:25 pmIAD - SJO

1 stop18h 19mVolaris El Salvador

Deal found 6/10

$255

Sat 9/136:00 amSJO - IAD

2 stops24h 46mAmerican Airlines

Sat 9/207:17 pmIAD - SJO

2 stops17h 55mAmerican Airlines

Deal found 6/11

$257

Thu 10/235:52 pmSJO - IAD

1 stop8h 30mCopa Airlines

Sun 10/262:18 amIAD - SJO

1 stop9h 41mCopa Airlines

Deal found 6/10

$258

Best flights from San José to Dulles Intl
Discover carefully curated flight deals from San José to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Tue 7/294:20 pmSJO - IAD

1 stop6h 55mAvianca

Mon 8/41:05 amIAD - SJO

Nonstop4h 30mAvianca

Deal found 6/10

$233

Tue 9/25:00 pmSJO - IAD

1 stop17h 37mMultiple Airlines

Thu 9/182:25 pmIAD - SJO

1 stop7h 54mMultiple Airlines

Deal found 6/10

$235

Thu 7/245:30 amSJO - IAD

1 stop16h 28mUnited Airlines

Sat 7/263:39 pmIAD - SJO

1 stop22h 16mUnited Airlines

Deal found 6/10

$238

Wed 7/162:42 pmSJO - IAD

1 stop19h 58mVolaris El Salvador

Sat 7/262:25 pmIAD - SJO

1 stop18h 19mVolaris El Salvador

Deal found 6/10

$255

Sat 8/162:15 pmSJO - IAD

1 stop7h 42mAmerican Airlines

Tue 8/264:36 pmIAD - SJO

2 stops23h 04mAmerican Airlines

Deal found 6/10

$257

Sun 6/295:52 pmSJO - IAD

1 stop8h 28mCopa Airlines

Sat 7/52:22 amIAD - SJO

1 stop7h 58mCopa Airlines

Deal found 6/11

$339

Last-minute flights from San José to Dulles Intl
Discover last-minute flight deals from San José to Dulles Intl. Data last updated June 12, 2025 and is based on user searches.

Tue 6/172:29 pmSJO - IAD

1 stop8h 00mCopa Airlines

Sun 6/222:21 amIAD - SJO

1 stop12h 59mCopa Airlines

Deal found 6/10

$318

Tue 6/175:52 amSJO - IAD

1 stop16h 37mCopa Airlines

Mon 6/234:34 pmIAD - SJO

1 stop17h 01mCopa Airlines

Deal found 6/10

$318

Wed 6/184:45 pmSJO - IAD

1 stop8h 00mAvianca

Tue 6/241:05 amIAD - SJO

Nonstop4h 30mAvianca

Deal found 6/10

$237

Fri 6/202:15 pmSJO - IAD

1 stop27h 29mAmerican Airlines

Tue 8/194:36 pmIAD - SJO

2 stops21h 19mAmerican Airlines

Deal found 6/11

$400

Sun 6/226:35 amSJO - IAD

1 stop20h 40mUnited Airlines

Fri 6/2710:34 pmIAD - SJO

1 stop24h 41mUnited Airlines

Deal found 6/10

$238

Sun 6/2211:15 amSJO - IAD

1 stop23h 05mMultiple Airlines

Tue 8/52:25 pmIAD - SJO

1 stop7h 54mMultiple Airlines

Deal found 6/9

$265

Sun 6/2211:15 amSJO - IAD

1 stop10h 55mVolaris El Salvador

Sat 6/282:00 pmIAD - SJO

1 stop22h 14mVolaris El Salvador

Deal found 6/11

$307

Tue 7/85:00 pmSJO - IAD

1 stop17h 40mMultiple Airlines

Thu 7/172:25 pmIAD - SJO

1 stop18h 19mMultiple Airlines

Deal found 6/11

$249

Wed 7/162:42 pmSJO - IAD

1 stop19h 58mVolaris El Salvador

Sat 7/262:25 pmIAD - SJO

1 stop18h 19mVolaris El Salvador

Deal found 6/10

$255

Thu 7/245:30 amSJO - IAD

1 stop16h 28mUnited Airlines

Sat 7/263:39 pmIAD - SJO

1 stop22h 16mUnited Airlines

Deal found 6/10

$238

Thu 7/242:25 pmSJO - IAD

2 stops20h 24mAmerican Airlines

Mon 8/114:36 pmIAD - SJO

2 stops21h 19mAmerican Airlines

Deal found 6/10

$314

Tue 7/294:20 pmSJO - IAD

1 stop6h 55mAvianca

Mon 8/41:05 amIAD - SJO

Nonstop4h 30mAvianca

Deal found 6/10

$233

One-way flights from San José to Dulles Intl
Search for one-way flight options from San José to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Mon 6/1611:15 amSJO - IAD

1 stop23h 05mVolaris El Salvador

Deal found 6/11

$136

Mon 6/237:45 pmSJO - IAD

1 stop6h 35mAvianca

Deal found 6/11

$137

Sun 7/135:30 amSJO - IAD

1 stop16h 28mUnited Airlines

Deal found 6/9

$143

Fri 7/181:55 pmSJO - IAD

2 stops18h 42mAmerican Airlines

Deal found 6/11

$160

Thu 7/315:00 pmSJO - IAD

1 stop17h 40mMultiple Airlines

Deal found 6/10

$173

Tue 8/1212:50 amSJO - IAD

2 stops28h 00mAlaska Airlines

Deal found 6/10

$270

Cheapflights 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

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 7/29

4:20 pm-1:15 am

1 stop6h 55m

Washington, D.C. Dulles Intl

Mon 8/4

1:05 am-3:35 am

Nonstop4h 30m

$233

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 9/2

5:00 pm-12:37 pm

1 stop17h 37m

Washington, D.C. Dulles Intl

Wed 9/17

2:37 am-8:19 pm

1 stop19h 42m

$235

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Thu 7/24

5:30 am-11:58 pm

1 stop16h 28m

Washington, D.C. Dulles Intl

Sat 7/26

3:39 pm-11:55 am

1 stop22h 16m

$238

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Wed 7/16

2:42 pm-12:40 pm

1 stop19h 58m

Washington, D.C. Dulles Intl

Sat 7/26

2:25 pm-6:44 am

1 stop18h 19m

$255

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sat 8/16

2:15 pm-11:57 pm

1 stop7h 42m

Washington, D.C. Dulles Intl

Tue 8/26

4:36 pm-1:40 pm

2 stops23h 04m

$257

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sun 6/29

5:52 pm-4:20 am

1 stop8h 28m

Washington, D.C. Dulles Intl

Sat 7/5

2:22 am-8:20 am

1 stop7h 58m

$339

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Mon 6/16

11:15 am-12:20 pm

1 stop23h 05m

$136

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Mon 6/23

7:45 pm-4:20 am

1 stop6h 35m

$137

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sun 7/13

5:30 am-11:58 pm

1 stop16h 28m

$143

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 9/9

12:12 pm-10:07 am

2 stops19h 55m

$160

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 12 results

The best insider tips for San José to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your San José to Washington, D.C. Dulles Intl Airport trip

Airports

SJO

Leave for SJO with sufficient time to clear security. Arrive at least 3 hours before your flight to avoid delays.

IAD

Use the Washington Metro Silver line for a cost-effective way to reach downtown from IAD in under 40 minutes.

Our travel experts

Marisa Garcia

Expert on SJO

Ramsey Qubein

Expert on IAD

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

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from San José 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 San José to Washington, D.C. Dulles Intl Airport

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

The best time to book flights from San José, San José Province to Washington, D.C. Dulles Intl Airport is 67 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from San José, San José Province to Washington, D.C. Dulles Intl Airport (average of $309). Flying from San José, San José Province to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 SJO to IAD?

Unlike at noon, when flights are generally more expensive, you can save up to 45% on flights from San José, San José Province to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the evening.

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

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

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with Alaska Airlines, Copa Airlines and United Airlines from San José to Washington, D.C. have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Copa Airlines

7.5

Good

1,451 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,790 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What airport do you fly from for flights from San José to Washington, D.C. Dulles Intl?
Most people fly from San José Juan Santamaria Intl (SJO) if they book a flight from San José to Washington, D.C. Dulles Intl. On average, Juan Santamaria Intl has 1 outbound flight to 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.
What are the cheapest airlines flying from San José, San José Province to Washington, D.C. Dulles Intl Airport round-trip?
According to our current data, Avianca ($233), United Airlines ($238), and Volaris El Salvador ($255) offers the cheapest pricing from San José, San José Province to Washington, D.C. Dulles Intl Airport. Avianca is 29% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from San José, San José Province to Washington, D.C. Dulles Intl Airport one-way?
For one-way options, check prices for Volaris El Salvador. According to our data, you can fly for as low as $136. Users have also found prices from $137 and $143 on Avianca and United Airlines, respectively.
What are the cheapest flights from San José, San José Province to Washington, D.C. Dulles Intl Airport?
The cheapest flight price from San José, San José Province to Washington, D.C. Dulles Intl Airport is $138. On average you can expect to pay $255. The most popular route, (San José Juan Santamaria Intl - Washington, D.C. Dulles Intl), can usually be booked for $220.
Can I find deals for flights from San José to Dulles Intl that include hotel bookings?
Yes. In addition to deals on San José to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San José to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San José to Dulles Intl.
Can I find deals for business class flights from San José to Dulles Intl?
Yes. Cheapflights offers flight deals from San José to Dulles Intl 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 San José, San José Province to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from San José, San José Province to Washington, D.C. Dulles Intl Airport (average of $309). Flying from San José, San José Province to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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

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Top 6 airlines flying from San José to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Volaris El Salvador	Cheapest$173	Average$266	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$203	Average$266	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$234	Average$291	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$237	Average$400	FlexibilityNo cancel fee	On-time69%
Avianca	Cheapest$246	Average$365	FlexibilityNo cancel fee	On-time71%
Copa Airlines	Cheapest$295	Average$381	FlexibilityNo cancel fee	On-time70%

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$136+ Cheap flights from San José (SJO) to Dulles Intl (IAD)

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 6/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San José to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from San José Juan Santamaria Intl to Washington, D.C. Dulles Intl are usually found in October or February, booked 67 days in advance, depart on a Monday or Friday and return on a Tuesday

Cheap flight deals from San José to Dulles Intl

Round-trip from

One-way from

Popular in

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Average price

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Good one-way deal

Find flight deals from San José to Dulles Intl

Cheapest flights from San José to Dulles IntlExplore the most affordable flight options available from San José to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from San José to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights 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.

The best insider tips for San José to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your San José to Washington, D.C. Dulles Intl Airport trip

Airports

SJO

IAD

Our travel experts

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

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from San José with our price prediction graph.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from San José to Dulles Intl. Price data was last updated on June 9, 2025.

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

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

Find hourly flight availability from San José to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from San José to Dulles Intl. Price data was last updated on December 16, 2024.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

See what other customers who have flown with Alaska Airlines, Copa Airlines and United Airlines from San José to Washington, D.C. have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San José to Dulles Intl. 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 from for flights from San José to Washington, D.C. Dulles Intl?

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

What are the cheapest airlines to fly from San José, San José Province to Washington, D.C. Dulles Intl Airport one-way?

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

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

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

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

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

Traveling to a place near San José?

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Alternative routes for San José to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from San José to Dulles Intl

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Cheapest flights from San José to Dulles Intl
Explore the most affordable flight options available from San José to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.