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.

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).

What are the most reliable airlines from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

Before booking your flight to Washington, D.C. Dulles Intl Airport from San Juan Luis Munoz Marin Intl Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (81%), United Airlines (81%), Frontier( 81%).

What are the most popular airlines that fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

When booking a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport, you may want to consider flying on Delta, Frontier or United Airlines as they are the most popular for this route.

Can I find deals for flights from Luis Munoz Marin Intl to Dulles Intl that include hotel bookings?

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

How can I find direct flights from Luis Munoz Marin Intl to Dulles Intl?

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

Can I find deals for business class flights from Luis Munoz Marin Intl to Dulles Intl?

Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl 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.

$117+ Flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport

Q: How much does it cost to fly round-trip from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment. San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport flights typically cost between $336 and $521 in November. The cheapest round-trip price found within the last 3 days was $181 on Frontier (Nov 2-Nov 9).

Q: What is the cheapest day to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

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

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Find cheap flights from Luis Munoz Marin Intl 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

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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl are usually found in July or August, booked 29 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap flight deals from Luis Munoz Marin Intl to Dulles Intl

Round-trip from	$181 (Cheapflightsfares)
One-way from	$117 (United Airlines)
Popular in	April
Cheapest in	July
Average price	$419
Good round-trip deal	$272 or less
Good one-way deal	$160 or less

From San Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl

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One-way flight from San Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 5% potential increase in price ($22 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Price to beat on a round-trip flight from San Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from San Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl.

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Find flight deals from Luis Munoz Marin Intl to Dulles Intl

Cheapest flights from Luis Munoz Marin Intl to Dulles Intl
Explore the most affordable flight options available from Luis Munoz Marin Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2025.

Sun 11/23:45 pmSJU - IAD

Nonstop3h 56mFrontier

Sun 11/97:26 pmIAD - SJU

Nonstop3h 52mFrontier

Deal found 9/11

$181

Thu 10/166:22 amSJU - IAD

2 stops17h 07mFrontier

Sun 10/199:07 pmIAD - SJU

Nonstop3h 52mFrontier

Deal found 9/12

$196

Sat 11/223:58 pmSJU - IAD

Nonstop4h 03mFrontier

Sat 11/297:56 pmIAD - SJU

Nonstop3h 47mFrontier

Deal found 9/11

$197

Tue 11/254:08 pmSJU - IAD

Nonstop4h 03mFrontier

Sat 11/297:56 pmIAD - SJU

Nonstop3h 47mFrontier

Deal found 9/11

$200

Thu 10/94:26 pmSJU - IAD

Nonstop3h 56mFrontier

Mon 10/139:28 pmIAD - SJU

2 stops17h 56mFrontier

Deal found 9/11

$201

Fri 11/214:08 pmSJU - IAD

Nonstop4h 03mFrontier

Fri 11/288:06 pmIAD - SJU

Nonstop3h 47mFrontier

Deal found 9/11

$202

Thu 11/63:45 pmSJU - IAD

Nonstop3h 56mFrontier

Sun 11/93:51 pmIAD - SJU

1 stop8h 41mFrontier

Deal found 9/11

$204

Tue 11/254:08 pmSJU - IAD

Nonstop4h 03mFrontier

Sun 11/308:06 pmIAD - SJU

Nonstop3h 47mFrontier

Deal found 9/12

$216

Fri 10/103:14 pmSJU - IAD

1 stop24h 03mFrontier

Sun 10/129:07 pmIAD - SJU

Nonstop3h 52mFrontier

Deal found 9/12

$224

Thu 10/29:26 pmSJU - IAD

2 stops20h 53mFrontier

Sun 10/56:10 amIAD - SJU

1 stop8h 01mFrontier

Deal found 9/11

$226

Fri 11/214:08 pmSJU - IAD

Nonstop4h 03mFrontier

Sun 11/308:06 pmIAD - SJU

Nonstop3h 47mFrontier

Deal found 9/11

$227

Best flights from Luis Munoz Marin Intl to Dulles Intl
Discover carefully curated flight deals from Luis Munoz Marin Intl to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 13, 2025.

Tue 11/47:15 amSJU - IAD

1 stop10h 42mDelta

Mon 11/1012:31 pmIAD - SJU

1 stop9h 42mDelta

Deal found 9/11

$243

Thu 10/234:26 pmSJU - IAD

Nonstop3h 56mFrontier

Mon 10/276:15 amIAD - SJU

1 stop7h 51mFrontier

Deal found 9/12

$244

Mon 10/277:10 amSJU - IAD

1 stop16h 43mAmerican Airlines

Mon 11/37:59 amIAD - SJU

1 stop8h 06mAmerican Airlines

Deal found 9/12

$272

Fri 10/104:55 pmSJU - IAD

Nonstop3h 57mUnited Airlines

Mon 10/138:39 amIAD - SJU

Nonstop3h 55mUnited Airlines

Deal found 9/11

$302

Tue 10/216:22 amSJU - IAD

2 stops13h 24mFrontier

Sat 10/259:38 pmIAD - SJU

1 stop12h 04mFrontier

Deal found 9/12

$273

Fri 10/245:43 pmSJU - IAD

1 stop6h 29mDelta

Mon 10/276:00 amIAD - SJU

1 stop10h 33mDelta

Deal found 9/11

$281

Mon 10/277:30 amSJU - IAD

Nonstop4h 05mUnited Airlines

Mon 11/36:30 amIAD - SJU

1 stop8h 10mUnited Airlines

Deal found 9/12

$307

Thu 10/237:15 amSJU - IAD

1 stop11h 24mDelta

Mon 10/276:00 amIAD - SJU

1 stop10h 33mDelta

Deal found 9/12

$281

Sat 9/272:15 pmSJU - IAD

1 stop9h 11mDelta

Sat 10/412:08 pmIAD - SJU

1 stop11h 39mDelta

Deal found 9/10

$281

Sat 9/274:55 pmSJU - IAD

Nonstop3h 57mUnited Airlines

Wed 10/18:39 amIAD - SJU

Nonstop3h 55mUnited Airlines

Deal found 9/11

$310

Last-minute flights from Luis Munoz Marin Intl to Dulles Intl
Discover last-minute flight deals from Luis Munoz Marin Intl to Dulles Intl. Data last updated September 13, 2025 and is based on user searches.

Thu 9/189:26 pmSJU - IAD

2 stops15h 29mFrontier

Sat 9/207:14 pmIAD - SJU

1 stop7h 20mFrontier

Deal found 9/11

$229

Fri 9/197:15 amSJU - IAD

1 stop17h 00mFrontier

Sun 9/216:10 amIAD - SJU

1 stop8h 01mFrontier

Deal found 9/12

$228

Mon 9/229:26 pmSJU - IAD

2 stops22h 29mFrontier

Thu 10/169:07 pmIAD - SJU

Nonstop3h 52mFrontier

Deal found 9/12

$237

Thu 10/29:26 pmSJU - IAD

2 stops20h 53mFrontier

Sun 10/56:10 amIAD - SJU

1 stop8h 01mFrontier

Deal found 9/11

$226

Thu 10/94:26 pmSJU - IAD

Nonstop3h 56mFrontier

Mon 10/139:28 pmIAD - SJU

2 stops17h 56mFrontier

Deal found 9/11

$201

Thu 10/94:26 pmSJU - IAD

Nonstop3h 56mFrontier

Sat 10/119:38 pmIAD - SJU

2 stops17h 46mFrontier

Deal found 9/12

$235

Fri 10/103:14 pmSJU - IAD

1 stop24h 03mFrontier

Sun 10/129:07 pmIAD - SJU

Nonstop3h 52mFrontier

Deal found 9/12

$224

Thu 10/166:22 amSJU - IAD

2 stops17h 07mFrontier

Sun 10/199:07 pmIAD - SJU

Nonstop3h 52mFrontier

Deal found 9/12

$196

Fri 10/246:22 amSJU - IAD

2 stops17h 07mFrontier

Sun 10/266:15 amIAD - SJU

1 stop7h 54mFrontier

Deal found 9/11

$231

Fri 10/244:55 pmSJU - IAD

Nonstop3h 57mUnited Airlines

Sun 10/265:32 pmIAD - SJU

Nonstop3h 50mUnited Airlines

Deal found 9/11

$234

One-way flights from Luis Munoz Marin Intl to Dulles Intl
Search for one-way flight options from Luis Munoz Marin Intl to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 13, 2025.

Fri 10/174:55 pmSJU - IAD

Nonstop3h 57mUnited Airlines

Deal found 9/10

$117

Thu 10/29:26 pmSJU - IAD

2 stops15h 29mFrontier

Deal found 9/11

$118

Wed 10/295:51 pmSJU - IAD

2 stops22h 43mFrontier

Deal found 9/12

$119

Wed 10/154:55 pmSJU - IAD

Nonstop3h 57mUnited Airlines

Deal found 9/10

$121

Wed 12/108:10 amSJU - IAD

1 stop10h 20mUnited Airlines

Deal found 9/11

$122

Thu 9/189:26 pmSJU - IAD

2 stops15h 29mFrontier

Deal found 9/11

$123

Wed 11/55:59 pmSJU - IAD

1 stop6h 08mAmerican Airlines

Deal found 9/11

$125

Sun 10/194:26 pmSJU - IAD

Nonstop3h 56mFrontier

Deal found 9/10

$128

Fri 11/284:08 pmSJU - IAD

Nonstop4h 03mFrontier

Deal found 9/11

$129

Sat 11/86:00 amSJU - IAD

2 stops18h 55mMultiple Airlines

Deal found 9/11

$131

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Tue 11/4

7:15 am-4:57 pm

1 stop10h 42m

Washington, D.C. Dulles Intl

Mon 11/10

12:31 pm-11:13 pm

1 stop9h 42m

$243

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/23

4:26 pm-8:22 pm

Nonstop3h 56m

Washington, D.C. Dulles Intl

Mon 10/27

6:15 am-2:06 pm

1 stop7h 51m

$244

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Mon 10/27

7:10 am-11:53 pm

1 stop16h 43m

Washington, D.C. Dulles Intl

Mon 11/3

7:59 am-5:05 pm

1 stop8h 06m

$272

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Tue 10/21

6:22 am-7:46 pm

2 stops13h 24m

Washington, D.C. Dulles Intl

Sat 10/25

9:38 pm-9:42 am

1 stop12h 04m

$273

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 10/24

5:43 pm-12:12 am

1 stop6h 29m

Washington, D.C. Dulles Intl

Mon 10/27

6:00 am-4:33 pm

1 stop10h 33m

$281

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/23

7:15 am-6:39 pm

1 stop11h 24m

Washington, D.C. Dulles Intl

Mon 10/27

6:00 am-4:33 pm

1 stop10h 33m

$281

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Sat 9/27

2:15 pm-11:26 pm

1 stop9h 11m

Washington, D.C. Dulles Intl

Sat 10/4

12:08 pm-11:47 pm

1 stop11h 39m

$281

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 10/10

4:55 pm-8:52 pm

Nonstop3h 57m

Washington, D.C. Dulles Intl

Mon 10/13

8:39 am-12:34 pm

Nonstop3h 55m

$302

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Mon 10/27

7:30 am-11:35 am

Nonstop4h 05m

Washington, D.C. Dulles Intl

Mon 11/3

6:30 am-3:40 pm

1 stop8h 10m

$307

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Sat 9/27

4:55 pm-8:52 pm

Nonstop3h 57m

Washington, D.C. Dulles Intl

Wed 10/1

8:39 am-12:34 pm

Nonstop3h 55m

$310

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 19 results

The best insider tips for San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport flights

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

Airports

SJU

At SJU, security wait times can vary greatly. Arrive two hours early for domestic flights to avoid unexpected delays.

IAD

From IAD, the Washington Metro Silver Line offers a cheap, 40-minute ride to the city, with the station five minutes from the terminal.

Our travel experts

Ramsey Qubein

Expert on IAD

Brandon Schultz

Expert on SJU

Best time to book a flight from Luis Munoz Marin Intl to Dulles Intl

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

How far ahead should I book a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

The best time to book flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport is 29 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 Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport (average of $292). Flying from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 SJU to IAD?

It’s optimal to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport at noon. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight in the afternoon.

How much does it cost to fly round-trip from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Read reviews from past customers who have flown Delta, United Airlines, and Frontier from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport. 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.

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Delta

8.0

Very good

7,960 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

United Airlines

7.4

Good

8,936 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Frontier

5.8

Fair

3,176 reviews

Delta

8.0

Very good

7,960 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

How long is the flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?
For as low as $244, Delta can have you in Washington, D.C. Dulles Intl Airport from San Juan Luis Munoz Marin Intl Airport in 3h 56m. San Juan Luis Munoz Marin Intl Airport and Washington, D.C. Dulles Intl Airport are separated by a distance of 1573 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport round-trip?
Frontier, at $99, was found to be the cheapest airline from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include United Airlines and Delta. These flights start at 73% lower than the current average price 3 months from now.
What are the most reliable airlines from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?
Before booking your flight to Washington, D.C. Dulles Intl Airport from San Juan Luis Munoz Marin Intl Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (81%), United Airlines (81%), Frontier( 81%).
What are the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?
Looking for the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport? While on average our users pay $487, our data indicates the cheapest price to be $107. The most popular route (San Juan Luis Munoz Marin Intl - Washington, D.C. Dulles Intl), is priced around $197.
Can I find deals for flights from Luis Munoz Marin Intl to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Luis Munoz Marin Intl to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Luis Munoz Marin Intl to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luis Munoz Marin Intl to Dulles Intl.
Can I find deals for business class flights from Luis Munoz Marin Intl to Dulles Intl?
Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl 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 Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport (average of $292). Flying from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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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Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Luis Munoz Marin Intl to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$99	Average$247	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$246	Average$457	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$269	Average$431	FlexibilityNo cancel fee	On-timeN/A

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$117+ Cheap flights from Luis Munoz Marin Intl (SJU) 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Luis Munoz Marin Intl 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 Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl are usually found in July or August, booked 29 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap flight deals from Luis Munoz Marin Intl to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Luis Munoz Marin Intl to Dulles Intl

Cheapest flights from Luis Munoz Marin Intl to Dulles IntlExplore the most affordable flight options available from Luis Munoz Marin Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2025.

Explore the most affordable flight options available from Luis Munoz Marin Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport that are best for you.

The best insider tips for San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport flights

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

Airports

SJU

IAD

Our travel experts

Best time to book a flight from Luis Munoz Marin Intl to Dulles Intl

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

Cheapflights Insights

Everything you need to know about your flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

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

How much does it cost to fly round-trip from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Related info for your journey

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

How long is the flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

What are the cheapest airlines flying from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport round-trip?

What are the most reliable airlines from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

What are the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Luis Munoz Marin Intl to Dulles Intl that include hotel bookings?

How can I find direct flights from Luis Munoz Marin Intl to Dulles Intl?

Can I find deals for business class flights from Luis Munoz Marin Intl to Dulles Intl?

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Cheapest flights from Luis Munoz Marin Intl to Dulles Intl
Explore the most affordable flight options available from Luis Munoz Marin Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 13, 2025.