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.

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

Flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport are found to be more expensive on Sunday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Washington, D.C. Dulles Intl Airport.

Most accurate provider : When it comes to deals on San Juan Luis Munoz Marin Intl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on San Juan Luis Munoz Marin Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from San Juan Luis Munoz Marin Intl Airport-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 Juan Luis Munoz Marin Intl Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust AranGrant the most. AranGrant 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 Juan Luis Munoz Marin Intl Airport-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.

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.

$108+ Flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport

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 at noon 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

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 Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl are usually found in March or June, booked 51 days in advance, depart on a Friday or Wednesday and return on a Tuesday

Cheap flight deals from Luis Munoz Marin Intl to Dulles Intl

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$179 (Priceline)
One-way from	$108 (Frontier)
Popular in	April
Cheapest in	March
Average price	$428
Good round-trip deal	$351 or less
Good one-way deal	$174 or less

Provider with most accurate pricing for San Juan Luis Munoz Marin Intl-Washington, D.C. Dulles Intl flight deals.

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Provider most trusted by Cheapflights users for San Juan Luis Munoz Marin Intl-Washington, D.C. Dulles Intl flights.

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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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High demand for flights, 2% potential price rise

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in May 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.

Search Deals

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 May 21, 2025.

Tue 6/178:00 amSJU - IAD

Nonstop3h 53mFrontier

Tue 6/2412:48 pmIAD - SJU

Nonstop3h 50mFrontier

Deal found 5/19

$179

Wed 7/91:05 amSJU - IAD

1 stop6h 15mUnited Airlines

Sun 7/135:28 pmIAD - SJU

Nonstop3h 56mUnited Airlines

Deal found 5/20

$257

Fri 5/233:50 pmSJU - IAD

1 stop8h 12mAmerican Airlines

Fri 5/305:02 amIAD - SJU

1 stop6h 08mAmerican Airlines

Deal found 5/20

$261

Wed 7/21:02 pmSJU - IAD

1 stop11h 02mMultiple Airlines

Sat 7/196:10 amIAD - SJU

1 stop8h 08mMultiple Airlines

Deal found 5/19

$279

Tue 11/117:00 amSJU - IAD

1 stop10h 31mDelta

Wed 11/196:10 amIAD - SJU

1 stop7h 05mDelta

Deal found 5/21

$355

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 May 21, 2025.

Tue 6/178:00 amSJU - IAD

Nonstop3h 53mFrontier

Tue 6/2412:48 pmIAD - SJU

Nonstop3h 50mFrontier

Deal found 5/19

$179

Wed 7/91:05 amSJU - IAD

1 stop6h 15mUnited Airlines

Sun 7/135:28 pmIAD - SJU

Nonstop3h 56mUnited Airlines

Deal found 5/20

$257

Wed 7/21:02 pmSJU - IAD

1 stop11h 02mMultiple Airlines

Sat 7/196:10 amIAD - SJU

1 stop8h 08mMultiple Airlines

Deal found 5/19

$279

Fri 5/307:30 amSJU - IAD

1 stop9h 15mDelta

Mon 6/212:20 pmIAD - SJU

1 stop11h 22mDelta

Deal found 5/20

$300

Sat 5/247:15 amSJU - IAD

1 stop9h 41mAmerican Airlines

Mon 5/265:02 amIAD - SJU

1 stop6h 08mAmerican Airlines

Deal found 5/20

$320

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 May 21, 2025 and is based on user searches.

Thu 5/226:15 amSJU - IAD

1 stop10h 30mDelta

Sun 6/16:00 amIAD - SJU

1 stop6h 45mDelta

Deal found 5/20

$419

Fri 5/233:50 pmSJU - IAD

1 stop8h 12mAmerican Airlines

Fri 5/305:02 amIAD - SJU

1 stop6h 08mAmerican Airlines

Deal found 5/20

$261

Mon 5/266:15 pmSJU - IAD

3 stops31h 00mAvianca

Mon 6/25:05 pmIAD - SJU

3 stops18h 50mAvianca

Deal found 5/20

$753

Tue 5/277:15 amSJU - IAD

1 stop16h 47mAmerican Airlines

Tue 6/35:02 amIAD - SJU

1 stop15h 31mAmerican Airlines

Deal found 5/20

$365

Thu 5/293:40 amSJU - IAD

1 stop8h 52mFrontier

Sun 6/112:28 pmIAD - SJU

Nonstop3h 50mFrontier

Deal found 5/20

$224

Fri 5/307:30 amSJU - IAD

1 stop9h 15mDelta

Mon 6/212:20 pmIAD - SJU

1 stop11h 22mDelta

Deal found 5/20

$300

Sat 5/313:56 pmSJU - IAD

1 stop8h 34mUnited Airlines

Tue 6/33:40 pmIAD - SJU

1 stop8h 17mUnited Airlines

Deal found 5/19

$350

Sat 5/311:59 amSJU - IAD

3 stops26h 21mMultiple Airlines

Thu 6/55:05 pmIAD - SJU

2 stops19h 35mMultiple Airlines

Deal found 5/20

$837

Thu 6/122:42 amSJU - IAD

1 stop17h 25mMultiple Airlines

Fri 6/206:10 amIAD - SJU

2 stops18h 30mMultiple Airlines

Deal found 5/20

$334

Tue 6/178:00 amSJU - IAD

Nonstop3h 53mFrontier

Tue 6/2412:48 pmIAD - SJU

Nonstop3h 50mFrontier

Deal found 5/19

$179

Wed 6/251:05 amSJU - IAD

1 stop6h 15mUnited Airlines

Sun 6/296:15 amIAD - SJU

1 stop7h 30mUnited Airlines

Deal found 5/19

$324

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 May 21, 2025.

Thu 5/297:20 amSJU - IAD

Nonstop3h 55mFrontier

Deal found 5/21

$108

Mon 6/231:05 amSJU - IAD

1 stop6h 14mUnited Airlines

Deal found 5/20

$118

Sat 5/317:15 amSJU - IAD

1 stop12h 21mAmerican Airlines

Deal found 5/20

$146

Wed 6/112:54 pmSJU - IAD

1 stop9h 00mMultiple Airlines

Deal found 5/20

$151

Sun 6/156:15 pmSJU - IAD

2 stops29h 30mAvianca

Deal found 5/20

$312

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 6/17

8:00 am-11:53 am

Nonstop3h 53m

Washington, D.C. Dulles Intl

Tue 6/24

12:48 pm-4:38 pm

Nonstop3h 50m

$179

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 7/9

1:05 am-7:20 am

1 stop6h 15m

Washington, D.C. Dulles Intl

Sun 7/13

5:28 pm-9:24 pm

Nonstop3h 56m

$257

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 7/2

1:02 pm-12:04 am

1 stop11h 02m

Washington, D.C. Dulles Intl

Sat 7/19

6:10 am-2:18 pm

1 stop8h 08m

$279

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Tue 11/11

7:00 am-4:31 pm

1 stop10h 31m

Washington, D.C. Dulles Intl

Wed 11/19

6:10 am-2:15 pm

1 stop7h 05m

$355

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 6/5

8:00 am-11:59 pm

1 stop15h 59m

Washington, D.C. Dulles Intl

Tue 6/10

9:10 am-12:08 am

1 stop14h 58m

$369

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 5/29

7:20 am-11:15 am

Nonstop3h 55m

$108

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Mon 6/23

1:05 am-7:19 am

1 stop6h 14m

$118

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Sat 5/31

7:15 am-7:36 pm

1 stop12h 21m

$146

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 6/11

2:54 pm-11:54 pm

1 stop9h 00m

$151

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/21

Compare providers for flights from Luis Munoz Marin Intl to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Luis Munoz Marin Intl to Dulles Intl in May.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 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 Juan Luis Munoz Marin Intl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on San Juan Luis Munoz Marin Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from San Juan Luis Munoz Marin Intl Airport-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 Juan Luis Munoz Marin Intl Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust AranGrant the most. AranGrant 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 Juan Luis Munoz Marin Intl Airport-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.

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 51 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 $309). Flying from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $363). 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 36% on the cost of your flight, compared to a flight in the afternoon.

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 Delta, United Airlines and American Airlines from San Juan to Washington, D.C. have to say. 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

7,951 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,951 reviews

Delta

8.0

Very good

7,951 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,745 reviews

Delta

8.0

Very good

7,951 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,951 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Avianca

6.7

Okay

2,329 reviews

Delta

8.0

Very good

7,951 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Frontier

6.0

Okay

3,289 reviews

Delta

8.0

Very good

7,951 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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 $179, 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 58% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airlines for a one-way flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport are Frontier ($108), United Airlines ($118), and American Airlines ($146).
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 $913, our data indicates the cheapest price to be $97. The most popular route (San Juan Luis Munoz Marin Intl - Washington, D.C. Dulles Intl), is priced around $245.
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 $309). Flying from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $363). 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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Tysons

Silver Spring

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Gaithersburg

Springfield

Falls Church

Rockville

Laurel

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Herndon

Sterling

Bowie

National Harbor

Reston

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$59	Average$284	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$269	Average$431	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$272	Average$459	FlexibilityNo cancel fee	On-time69%

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$108+ 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 5/29. 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 March or June, booked 51 days in advance, depart on a Friday or Wednesday and return on a Tuesday

Cheap flight deals from Luis Munoz Marin Intl 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 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 May 21, 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 May 21, 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.

Compare providers for flights from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl to Dulles Intl in May.

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?

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to Dulles Intl. Price data was last updated on May 16, 2025.

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?

Find hourly flight availability from Luis Munoz Marin Intl 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 May 21, 2025.

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

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.

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 cheapest airlines to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport one-way?

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?

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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

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 Luis Munoz Marin Intl to Dulles Intl

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

Top 3 airlines flying 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 May 21, 2025.