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 Tuesday is a good option for securing a great price. You can expect to save up to 182% when planning your travel around this day of the week.

Most accurate provider : When it comes to deals on San José, San José Province-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San José, San José Province-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San José, San José Province-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San José, San José Province-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San José, San José Province-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 0 outbound flights 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.

$151+ Flights from San José to Washington, D.C. Dulles Intl Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from San José to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Cheap flight deals from San José to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$225 (CheapOair)
One-way from	$151 (United Airlines)
Popular in	December
Cheapest in	October
Average price	$356
Good round-trip deal	$362 or less
Good one-way deal	$207 or less

Provider with most accurate pricing for San José Juan Santamaria Intl-Washington, D.C. Dulles Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-Washington, D.C. Dulles Intl flights.

Search Deals

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

Search Deals

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

Search Deals

Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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

Search Deals

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

Search Deals

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 April 17, 2025.

Sun 6/111:15 amSJO - IAD

1 stop23h 05mVolaris El Salvador

Sat 6/72:22 amIAD - SJO

1 stop9h 52mVolaris El Salvador

Deal found 4/17

$225

Tue 5/62:15 pmSJO - IAD

2 stops21h 07mAmerican Airlines

Mon 5/125:26 pmIAD - SJO

2 stops20h 01mAmerican Airlines

Deal found 4/17

$227

Fri 7/114:17 pmSJO - IAD

1 stop18h 05mMultiple Airlines

Mon 7/142:22 amIAD - SJO

1 stop19h 57mMultiple Airlines

Deal found 4/17

$237

Sat 11/11:30 pmSJO - IAD

Nonstop4h 42mUnited Airlines

Sun 11/910:06 pmIAD - SJO

1 stop14h 19mUnited Airlines

Deal found 4/16

$243

Thu 8/145:10 pmSJO - IAD

Nonstop4h 35mAvianca

Mon 8/181:05 amIAD - SJO

Nonstop4h 30mAvianca

Deal found 4/17

$249

Tue 5/68:09 amSJO - IAD

1 stop18h 11mCopa Airlines

Mon 5/124:34 pmIAD - SJO

1 stop17h 46mCopa Airlines

Deal found 4/15

$295

Thu 10/231:13 pmSJO - IAD

1 stop8h 54mDelta

Sun 10/266:00 amIAD - SJO

1 stop7h 48mDelta

Deal found 4/16

$325

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 April 17, 2025.

Sun 6/111:15 amSJO - IAD

1 stop23h 05mVolaris El Salvador

Sun 6/82:00 pmIAD - SJO

1 stop22h 14mVolaris El Salvador

Deal found 4/17

$225

Tue 5/62:15 pmSJO - IAD

2 stops21h 07mAmerican Airlines

Mon 5/125:26 pmIAD - SJO

2 stops20h 01mAmerican Airlines

Deal found 4/17

$227

Fri 7/114:17 pmSJO - IAD

1 stop18h 05mMultiple Airlines

Mon 7/142:22 amIAD - SJO

1 stop19h 57mMultiple Airlines

Deal found 4/17

$237

Sat 4/266:35 amSJO - IAD

1 stop20h 47mUnited Airlines

Wed 4/306:09 amIAD - SJO

1 stop8h 17mUnited Airlines

Deal found 4/16

$245

Tue 6/35:10 pmSJO - IAD

Nonstop4h 35mAvianca

Fri 6/62:35 amIAD - SJO

2 stops10h 40mAvianca

Deal found 4/16

$250

Tue 5/66:07 pmSJO - IAD

1 stop8h 13mCopa Airlines

Sun 5/112:21 amIAD - SJO

1 stop7h 14mCopa Airlines

Deal found 4/15

$295

Last-minute flights from San José to Dulles Intl
Discover last-minute flight deals from San José to Dulles Intl. Data last updated April 17, 2025 and is based on user searches.

Wed 4/232:13 pmSJO - IAD

1 stop20h 07mMultiple Airlines

Mon 4/282:35 amIAD - SJO

1 stop7h 05mMultiple Airlines

Deal found 4/16

$274

Wed 4/233:05 pmSJO - IAD

1 stop9h 40mAvianca

Mon 5/52:35 amIAD - SJO

1 stop7h 05mAvianca

Deal found 4/17

$530

Thu 4/242:10 pmSJO - IAD

1 stop7h 46mAmerican Airlines

Tue 4/295:00 amIAD - SJO

2 stops15h 24mAmerican Airlines

Deal found 4/16

$227

Thu 4/2410:57 amSJO - IAD

1 stop11h 32mCopa Airlines

Mon 4/282:19 amIAD - SJO

1 stop8h 02mCopa Airlines

Deal found 4/16

$386

Sat 4/266:35 amSJO - IAD

1 stop20h 47mUnited Airlines

Wed 4/306:09 amIAD - SJO

1 stop8h 17mUnited Airlines

Deal found 4/16

$245

Sun 4/2711:15 amSJO - IAD

1 stop23h 05mVolaris El Salvador

Tue 5/62:22 amIAD - SJO

1 stop13h 05mVolaris El Salvador

Deal found 4/17

$238

Sun 4/271:12 amSJO - IAD

2 stops26h 28mAlaska Airlines

Tue 5/136:30 amIAD - SJO

2 stops19h 22mAlaska Airlines

Deal found 4/16

$709

Mon 4/2811:15 amSJO - IAD

1 stop23h 05mVolaris El Salvador

Sat 5/32:00 pmIAD - SJO

1 stop22h 14mVolaris El Salvador

Deal found 4/16

$225

Tue 5/62:15 pmSJO - IAD

2 stops21h 07mAmerican Airlines

Mon 5/125:26 pmIAD - SJO

2 stops20h 01mAmerican Airlines

Deal found 4/17

$227

Tue 5/68:09 amSJO - IAD

1 stop18h 11mCopa Airlines

Mon 5/124:34 pmIAD - SJO

1 stop17h 46mCopa Airlines

Deal found 4/15

$295

Tue 5/274:20 pmSJO - IAD

1 stop6h 55mAvianca

Mon 6/22:35 amIAD - SJO

1 stop7h 05mAvianca

Deal found 4/17

$296

Fri 5/3011:15 amSJO - IAD

1 stop10h 55mMultiple Airlines

Sat 6/71:05 amIAD - SJO

Nonstop4h 30mMultiple Airlines

Deal found 4/16

$267

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 April 17, 2025.

Tue 5/207:55 amSJO - IAD

1 stop14h 03mUnited Airlines

Deal found 4/17

$151

Fri 5/911:15 amSJO - IAD

1 stop23h 05mVolaris El Salvador

Deal found 4/16

$152

Mon 6/25:10 pmSJO - IAD

Nonstop4h 35mAvianca

Deal found 4/16

$156

Thu 6/191:25 pmSJO - IAD

1 stop9h 08mDelta

Deal found 4/16

$158

Fri 7/46:10 amSJO - IAD

2 stops26h 27mAmerican Airlines

Deal found 4/16

$159

Sun 5/2511:15 amSJO - IAD

1 stop23h 05mMultiple Airlines

Deal found 4/16

$167

Thu 5/88:09 amSJO - IAD

1 stop18h 11mCopa Airlines

Deal found 4/15

$168

Wed 6/41:06 amSJO - IAD

2 stops50h 49mAlaska Airlines

Deal found 4/16

$276

Tue 4/297:55 amSJO - IAD

2 stops35h 20mAir Canada

Deal found 4/16

$292

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

Sun 6/1

11:15 am-12:20 pm

1 stop23h 05m

Washington, D.C. Dulles Intl

Sat 6/7

2:22 am-10:14 am

1 stop9h 52m

$225

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 5/6

2:15 pm-1:22 pm

2 stops21h 07m

Washington, D.C. Dulles Intl

Mon 5/12

5:26 pm-11:27 am

2 stops20h 01m

$227

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 7/11

4:17 pm-12:22 pm

1 stop18h 05m

Washington, D.C. Dulles Intl

Mon 7/14

2:22 am-8:19 pm

1 stop19h 57m

$237

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sat 4/26

6:35 am-5:22 am

1 stop20h 47m

Washington, D.C. Dulles Intl

Wed 4/30

6:09 am-12:26 pm

1 stop8h 17m

$245

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Mon 6/16

5:10 pm-11:45 pm

Nonstop4h 35m

Washington, D.C. Dulles Intl

Thu 6/19

1:05 am-3:35 am

Nonstop4h 30m

$249

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 5/6

6:07 pm-4:20 am

1 stop8h 13m

Washington, D.C. Dulles Intl

Sun 5/11

2:21 am-7:35 am

1 stop7h 14m

$295

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 5/20

7:55 am-11:58 pm

1 stop14h 03m

$151

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 5/9

11:15 am-12:20 pm

1 stop23h 05m

$152

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Mon 6/2

5:10 pm-11:45 pm

Nonstop4h 35m

$156

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Thu 6/19

1:25 pm-12:33 am

1 stop9h 08m

$158

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 15 results

Compare providers for flights from San José to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San José to Dulles Intl in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on San José, San José Province-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San José, San José Province-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San José, San José Province-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San José, San José Province-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San José, San José Province-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 June is currently the most expensive (average of $383). 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 Wednesday 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, Delta and Copa 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

9,882 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,882 reviews

Alaska Airlines

8.0

Very good

9,882 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,917 reviews

Alaska Airlines

8.0

Very good

9,882 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Copa Airlines

7.6

Good

1,409 reviews

Alaska Airlines

8.0

Very good

9,882 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,667 reviews

Alaska Airlines

8.0

Very good

9,882 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

American Airlines

7.2

Good

10,000 reviews

Alaska Airlines

8.0

Very good

9,882 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 0 outbound flights 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, Volaris El Salvador ($225), American Airlines ($227), and United Airlines ($245) offers the cheapest pricing from San José, San José Province to Washington, D.C. Dulles Intl Airport. Volaris El Salvador is 31% 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 United Airlines. According to our data, you can fly for as low as $151. Users have also found prices from $152 and $156 on Volaris El Salvador and Avianca, 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 $167. On average you can expect to pay $344. The most popular route, (San José Juan Santamaria Intl - Washington, D.C. Dulles Intl), can usually be booked for $200.
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 June is currently the most expensive (average of $383). 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

Arlington

Alexandria

Fairfax

Tysons

Springfield

Woodbridge

Rockville

Fredericksburg

Gaithersburg

Silver Spring

Linthicum Heights

Falls Church

Laurel

Easton

Herndon

Sterling

Bowie

Gettysburg

National Harbor

Oxon Hill

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from San José to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Volaris El Salvador	Cheapest$173	Average$278	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$203	Average$266	FlexibilityNo cancel fee	On-time71%
Avianca	Cheapest$204	Average$365	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$205	Average$399	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$234	Average$291	FlexibilityNo cancel fee	On-timeN/A
Copa Airlines	Cheapest$285	Average$370	FlexibilityNo cancel fee	On-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$151+ 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 5/20. 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 November, booked 67 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from San José to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

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 April 17, 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 April 17, 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.

Compare providers for flights from San José to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San José to Dulles Intl in April.

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 April 11, 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 April 17, 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, Delta and Copa 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?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

100% Free

Book with Flexibility

Travel Smart

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 April 17, 2025.