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Cheap flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. from $108

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. departing on 12/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.

Cheap round-trip flights

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Frontier Logo
4:18 pm - 7:31 pmSJU-IAD
4h 13mnonstop
Frontier Logo
8:26 pm - 1:20 amIAD-SJU
3h 54mnonstop
$138Frontier
Find Deal
Sat, Dec 20 - Sun, Jan 4
Frontier Logo
4:18 pm - 7:31 pmSJU-IAD
4h 13mnonstop
Frontier Logo
8:26 pm - 1:20 amIAD-SJU
3h 54mnonstop
$158Frontier
Find Deal
Sat, Dec 20 - Sat, Jan 3
Frontier Logo
4:08 pm - 7:11 pmSJU-IAD
4h 03mnonstop
Frontier Logo
8:06 pm - 12:53 amIAD-SJU
3h 47mnonstop
$162Frontier
Find Deal
Fri, Nov 21 - Sun, Nov 23
Frontier Logo
4:18 pm - 7:31 pmSJU-IAD
4h 13mnonstop
Frontier Logo
8:26 pm - 1:20 amIAD-SJU
3h 54mnonstop
$165Frontier
Find Deal
Sat, Dec 20 - Sun, Jan 4
Frontier Logo
4:18 pm - 7:31 pmSJU-IAD
4h 13mnonstop
Frontier Logo
8:26 pm - 1:20 amIAD-SJU
3h 54mnonstop
$168Frontier
Find Deal
Mon, Dec 22 - Sat, Jan 3
Delta Logo
3:55 pm - 12:24 amSJU-IAD
9h 29m1 stop
Delta Logo
6:00 am - 2:10 pmIAD-SJU
7h 10m1 stop
$185Delta
Find Deal
Fri, Jan 23 - Tue, Jan 27
American Airlines Logo
8:18 am - 12:01 amSJU-IAD
16h 43m1 stop
American Airlines Logo
6:25 am - 10:05 pmIAD-SJU
14h 40m1 stop
$215American Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
Multiple Airlines Logo
8:00 am - 5:46 pmSJU-IAD
10h 46m2 stops
Multiple Airlines Logo
8:06 pm - 12:53 amIAD-SJU
3h 47mnonstop
$217Multiple Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 23
American Airlines Logo
3:12 pm - 12:01 amSJU-IAD
9h 49m1 stop
American Airlines Logo
9:15 am - 10:05 pmIAD-SJU
11h 50m1 stop
$219American Airlines
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Sat, Dec 6 - Sun, Dec 7
Delta Logo
6:38 pm - 12:12 amSJU-IAD
6h 34m1 stop
Delta Logo
6:00 am - 1:59 pmIAD-SJU
6h 59m1 stop
$235Delta
Find Deal
Thu, Dec 4 - Tue, Dec 9

Delta flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport

Our best Delta deals on San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Jan 23
SJU3:55 pmSan Juan Luis Munoz Marin Intl
9h 29m
1 stop
IAD12:24 amWashington, D.C. Dulles Intl
Jan 27
IAD6:00 amWashington, D.C. Dulles Intl
7h 10m
1 stop
SJU2:10 pmSan Juan Luis Munoz Marin Intl
$185
Find similar
Delta
Nov 12
SJU3:20 pmSan Juan Luis Munoz Marin Intl
8h 43m
1 stop
IAD11:03 pmWashington, D.C. Dulles Intl
Nov 15
IAD6:55 amWashington, D.C. Dulles Intl
9h 31m
1 stop
SJU5:26 pmSan Juan Luis Munoz Marin Intl
$225
Find similar
Delta
Dec 4
SJU6:38 pmSan Juan Luis Munoz Marin Intl
6h 34m
1 stop
IAD12:12 amWashington, D.C. Dulles Intl
Dec 9
IAD6:00 amWashington, D.C. Dulles Intl
6h 59m
1 stop
SJU1:59 pmSan Juan Luis Munoz Marin Intl
$235
Find similar

American Airlines flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Dec 4
SJU8:18 amSan Juan Luis Munoz Marin Intl
16h 43m
1 stop
IAD12:01 amWashington, D.C. Dulles Intl
Dec 7
IAD6:25 amWashington, D.C. Dulles Intl
14h 40m
1 stop
SJU10:05 pmSan Juan Luis Munoz Marin Intl
$215
Find similar
American Airlines
Dec 6
SJU3:12 pmSan Juan Luis Munoz Marin Intl
9h 49m
1 stop
IAD12:01 amWashington, D.C. Dulles Intl
Dec 7
IAD9:15 amWashington, D.C. Dulles Intl
11h 50m
1 stop
SJU10:05 pmSan Juan Luis Munoz Marin Intl
$219
Find similar
American Airlines
Nov 13
SJU4:44 pmSan Juan Luis Munoz Marin Intl
8h 15m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
Nov 17
IAD6:04 amWashington, D.C. Dulles Intl
14h 31m
1 stop
SJU9:35 pmSan Juan Luis Munoz Marin Intl
$255
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 4, 2025.
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

Sat 12/20

4:18 pm-7:31 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Sun 1/4

8:26 pm-1:20 am

Nonstop3h 54m

$138

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Sat 12/20

4:18 pm-7:31 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Sat 1/3

8:26 pm-1:20 am

Nonstop3h 54m

$158

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 11/21

4:08 pm-7:11 pm

Nonstop4h 03m

Washington, D.C. Dulles Intl

Sun 11/23

8:06 pm-12:53 am

Nonstop3h 47m

$162

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Sat 12/20

4:18 pm-7:31 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Sun 1/4

8:26 pm-1:20 am

Nonstop3h 54m

$165

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Mon 12/22

4:18 pm-7:31 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Sat 1/3

8:26 pm-1:20 am

Nonstop3h 54m

$168

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 1/23

3:55 pm-12:24 am

1 stop9h 29m

Washington, D.C. Dulles Intl

Tue 1/27

6:00 am-2:10 pm

1 stop7h 10m

$185

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 12/4

8:18 am-12:01 am

1 stop16h 43m

Washington, D.C. Dulles Intl

Sun 12/7

6:25 am-10:05 pm

1 stop14h 40m

$215

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 11/21

8:00 am-5:46 pm

2 stops10h 46m

Washington, D.C. Dulles Intl

Sun 11/23

8:06 pm-12:53 am

Nonstop3h 47m

$217

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Sat 12/6

3:12 pm-12:01 am

1 stop9h 49m

Washington, D.C. Dulles Intl

Sun 12/7

9:15 am-10:05 pm

1 stop11h 50m

$219

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 12/4

6:38 pm-12:12 am

1 stop6h 34m

Washington, D.C. Dulles Intl

Tue 12/9

6:00 am-1:59 pm

1 stop6h 59m

$235

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, July is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $223. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of July, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $290.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $338. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport for around $711.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from San Juan Luis Munoz Marin Intl Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $369 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $497 on average. Flights to Washington, D.C. Dulles Intl Airport from San Juan Luis Munoz Marin Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest San Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl flight route?

Fly from San Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl for the best San Juan Luis Munoz Marin Intl - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from San Juan Luis Munoz Marin Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $362 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from San Juan Luis Munoz Marin Intl Airport for as low as $239 on momondo.

What cabin class options are available on San Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on San Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport.

How have San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of November 2025, prices for San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 27% more expensive when compared to flights at the same time last year.

When to book flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport (SJU to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport

Best Price Found

$147

Fastest flight time

3h 56m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from San Juan Luis Munoz Marin Intl Airport in the past 72 hours is $147. The best round-trip flight deal from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $289.
The fastest flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport takes 3h 56m
Direct flights go from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • How far is San Juan Luis Munoz Marin Intl to Washington, D.C. Dulles Intl by plane?

    The distance between San Juan Luis Munoz Marin Intl and Washington, D.C. Dulles Intl is about 1573.5 mi. A reasonable flight in good conditions will take 4h 03m.

  • When did momondo last update prices for flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport were last updated today.

  • How many operators does momondo search for flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport?

Best airlines flying from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $85Free CancellationRating
5.8
3,116 reviews
Search Frontier flights
United AirlinesPriceFrom $235Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
DeltaPriceFrom $269Free CancellationRating
7.9
8,002 reviews
Search Delta flights

  • United Airlines Flights From San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport

    United Airlines flies from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport around 12 times per week, with 9,002 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport in the last 72 hours was $235 (round-trip), much lower than the average airfare cost of $434 for United Airlines flights on this route.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
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Gettysburg
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Silver Spring
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Why use momondo?

Why should I use momondo to find a flight deal from San Juan to Washington, D.C.?

It is quick and easy to find San Juan to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

Can I find flights from San Juan to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for San Juan to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from San Juan to Washington, D.C.?

momondo helps you find the best flight between San Juan and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from San Juan to Washington, D.C. right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Juan to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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