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Cheap flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. from $96

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 1/29. 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

Enter your travel dates to find the best prices.
Frontier Logo
7:34 pm - 8:04 am
SJU
-
IAD
13h 30m1 stop
Frontier Logo
6:00 am - 3:27 pm
IAD
-
SJU
8h 27m1 stop
$167Frontier
Sat, Jan 17 - Mon, Jan 19
Multiple Airlines Logo
11:52 am - 7:58 pm
SJU
-
IAD
9h 06m1 stop
Multiple Airlines Logo
2:36 pm - 12:34 am
IAD
-
SJU
8h 58m1 stop
$170Multiple Airlines
Fri, Jan 30 - Sun, Feb 8
Frontier Logo
4:18 pm - 7:31 pm
SJU
-
IAD
4h 13mnonstop
Frontier Logo
8:26 pm - 1:20 am
IAD
-
SJU
3h 54mnonstop
$172Frontier
Mon, Dec 22 - Sat, Jan 3
Frontier Logo
11:15 am - 11:43 am
SJU
-
IAD
25h 28m2 stops
Frontier Logo
6:00 am - 3:27 pm
IAD
-
SJU
8h 27m1 stop
$173Frontier
Thu, Jan 15 - Mon, Jan 19
Frontier Logo
4:18 pm - 7:31 pm
SJU
-
IAD
4h 13mnonstop
Frontier Logo
9:41 am - 8:58 am
IAD
-
SJU
22h 17m1 stop
$179Frontier
Mon, Dec 22 - Thu, Jan 1
Frontier Logo
4:07 pm - 7:20 pm
SJU
-
IAD
4h 13mnonstop
Frontier Logo
9:41 am - 8:58 am
IAD
-
SJU
22h 17m1 stop
$180Frontier
Tue, Dec 23 - Thu, Jan 1
Frontier Logo
4:07 pm - 7:20 pm
SJU
-
IAD
4h 13mnonstop
Frontier Logo
8:26 pm - 1:20 am
IAD
-
SJU
3h 54mnonstop
$182Frontier
Tue, Dec 23 - Sat, Jan 3
Frontier Logo
4:22 pm - 9:55 am
SJU
-
IAD
18h 33m2 stops
Frontier Logo
1:31 pm - 9:55 am
IAD
-
SJU
19h 24m1 stop
$183Frontier
Thu, Feb 5 - Mon, Feb 9
Frontier Logo
4:36 pm - 8:40 am
SJU
-
IAD
17h 04m1 stop
Frontier Logo
9:18 am - 3:26 pm
IAD
-
SJU
29h 08m1 stop
$184Frontier
Thu, Jan 29 - Sun, Feb 1
Frontier Logo
8:25 am - 7:58 pm
SJU
-
IAD
12h 33m1 stop
Frontier Logo
9:35 am - 11:59 pm
IAD
-
SJU
13h 24m1 stop
$185Frontier
Fri, Jan 30 - Fri, Feb 6

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

Our best Frontier deals on San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Jan 17
SJU7:34 pmSan Juan Luis Munoz Marin Intl
13h 30m
1 stop
IAD8:04 amWashington, D.C. Dulles Intl
Jan 19
IAD6:00 amWashington, D.C. Dulles Intl
8h 27m
1 stop
SJU3:27 pmSan Juan Luis Munoz Marin Intl
$167
Find similar
Frontier
Dec 22
SJU4:18 pmSan Juan Luis Munoz Marin Intl
4h 13m
IAD7:31 pmWashington, D.C. Dulles Intl
Jan 3
IAD8:26 pmWashington, D.C. Dulles Intl
3h 54m
SJU1:20 amSan Juan Luis Munoz Marin Intl
$172
Find similar
Frontier
Jan 15
SJU6:00 amSan Juan Luis Munoz Marin Intl
8h 03m
1 stop
IAD1:03 pmWashington, D.C. Dulles Intl
Jan 18
IAD6:00 amWashington, D.C. Dulles Intl
18h 20m
2 stops
SJU1:20 amSan Juan Luis Munoz Marin Intl
$173
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
Mar 19
SJU1:44 pmSan Juan Luis Munoz Marin Intl
6h 46m
1 stop
IAD8:30 pmWashington, D.C. Dulles Intl
Mar 23
IAD5:00 amWashington, D.C. Dulles Intl
15h 49m
1 stop
SJU8:49 pmSan Juan Luis Munoz Marin Intl
$225
Find similar
American Airlines
Jan 16
SJU3:49 pmSan Juan Luis Munoz Marin Intl
8h 23m
1 stop
IAD11:12 pmWashington, D.C. Dulles Intl
Jan 19
IAD6:00 amWashington, D.C. Dulles Intl
15h 26m
1 stop
SJU10:26 pmSan Juan Luis Munoz Marin Intl
$228
Find similar
American Airlines
Jan 22
SJU3:49 pmSan Juan Luis Munoz Marin Intl
8h 23m
1 stop
IAD11:12 pmWashington, D.C. Dulles Intl
Jan 26
IAD6:00 amWashington, D.C. Dulles Intl
15h 26m
1 stop
SJU10:26 pmSan Juan Luis Munoz Marin Intl
$241
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 December 11, 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 1/17

7:34 pm-8:04 am

1 stop13h 30m

Washington, D.C. Dulles Intl

Mon 1/19

6:00 am-3:27 pm

1 stop8h 27m

$167

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 1/30

11:52 am-7:58 pm

1 stop9h 06m

Washington, D.C. Dulles Intl

Sun 2/8

2:36 pm-12:34 am

1 stop8h 58m

$170

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

$172

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 1/15

11:15 am-11:43 am

2 stops25h 28m

Washington, D.C. Dulles Intl

Mon 1/19

6:00 am-3:27 pm

1 stop8h 27m

$173

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

Thu 1/1

9:41 am-8:58 am

1 stop22h 17m

$179

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Tue 12/23

4:07 pm-7:20 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Thu 1/1

9:41 am-8:58 am

1 stop22h 17m

$180

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Tue 12/23

4:07 pm-7:20 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Sat 1/3

8:26 pm-1:20 am

Nonstop3h 54m

$182

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 2/5

4:22 pm-9:55 am

2 stops18h 33m

Washington, D.C. Dulles Intl

Mon 2/9

1:31 pm-9:55 am

1 stop19h 24m

$183

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 1/29

4:36 pm-8:40 am

1 stop17h 04m

Washington, D.C. Dulles Intl

Sun 2/1

9:18 am-3:26 pm

1 stop29h 08m

$184

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 1/30

8:25 am-7:58 pm

1 stop12h 33m

Washington, D.C. Dulles Intl

Fri 2/6

9:35 am-11:59 pm

1 stop13h 24m

$185

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 typical price of a round-trip flight between San Juan Luis Munoz Marin Intl Airport and Washington, D.C. Dulles Intl Airport?

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 March is also cheap. Prices for this month can be found on momondo for an average of $269.

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 $330. 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 $745.

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 $486 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 $354 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 $205 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 December 2025, prices for San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport flights are approximately 65% cheaper 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

$127

Fastest flight time

3h 59m

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 $127. 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 $270.
The fastest flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport takes 3h 59m
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 3h 59m.

  • 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 $98Free CancellationRating
5.8
3,084 reviews
Search Frontier flights
United AirlinesPriceFrom $232Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
DeltaPriceFrom $269Free CancellationRating
7.9
8,007 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 14 times per week, with 9,095 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 $232 (round-trip), much lower than the average airfare cost of $433 for United Airlines flights on this route.

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

    Frontier (5.8/10 from 3,084 reviews) operates around 2 flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport in any given week. The average Frontier airfare for this route is around $257, with deals from around $98 rare but found on momondo. Referenced prices are for round-trip San Juan Luis Munoz Marin Intl Airport to Washington, D.C. Dulles Intl Airport flight searches in the last 72 hours.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
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Winchester
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Silver Spring
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Harpers Ferry
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Fairfax

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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