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Cheap flights from San Juan to Washington, D.C. from $117

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 to Washington, D.C. departing on 9/24. 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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Cheap round-trip flights

Frontier Logo
4:26 pm - 8:22 pmSJU-IAD
3h 56mnonstop
Frontier Logo
6:15 am - 2:09 pmIAD-SJU
7h 54m1 stop
$196Frontier
Find Deal
Thu, Oct 23 - Sun, Oct 26
Frontier Logo
4:26 pm - 8:22 pmSJU-IAD
3h 56mnonstop
Frontier Logo
9:28 pm - 3:24 pmIAD-SJU
17h 56m2 stops
$197Frontier
Find Deal
Thu, Oct 16 - Mon, Oct 20
Frontier Logo
4:26 pm - 8:22 pmSJU-IAD
3h 56mnonstop
Frontier Logo
9:38 pm - 3:24 pmIAD-SJU
17h 46m2 stops
$198Frontier
Find Deal
Thu, Oct 9 - Sat, Oct 11
Delta Logo
7:15 am - 4:57 pmSJU-IAD
10h 42m1 stop
Delta Logo
7:01 am - 5:26 pmIAD-SJU
9h 25m1 stop
$245Delta
Find Deal
Thu, Nov 6 - Tue, Nov 11
American Airlines Logo
8:20 am - 4:49 pmSJU-IAD
9h 29m1 stop
American Airlines Logo
8:09 pm - 1:38 pmIAD-SJU
16h 29m1 stop
$251American Airlines
Find Deal
Wed, Nov 5 - Sun, Nov 9
Multiple Airlines Logo
4:26 pm - 8:22 pmSJU-IAD
3h 56mnonstop
Multiple Airlines Logo
9:28 pm - 1:44 amIAD-SJU
28h 16m1 stop
$254Multiple Airlines
Find Deal
Thu, Oct 9 - Mon, Oct 13
Multiple Airlines Logo
4:26 pm - 8:22 pmSJU-IAD
3h 56mnonstop
Multiple Airlines Logo
9:28 pm - 1:44 amIAD-SJU
28h 16m1 stop
$256Multiple Airlines
Find Deal
Thu, Oct 9 - Mon, Oct 13
United Airlines Logo
4:55 pm - 8:52 pmSJU-IAD
3h 57mnonstop
United Airlines Logo
6:15 am - 1:45 pmIAD-SJU
7h 30m1 stop
$271United Airlines
Find Deal
Thu, Oct 16 - Wed, Oct 22
American Airlines Logo
7:45 am - 6:54 pmSJU-IAD
11h 09m1 stop
American Airlines Logo
7:55 am - 5:05 pmIAD-SJU
8h 10m1 stop
$272American Airlines
Find Deal
Thu, Oct 30 - Tue, Nov 4
Delta Logo
2:22 pm - 11:01 pmSJU-IAD
8h 39m1 stop
Delta Logo
6:05 am - 2:12 pmIAD-SJU
7h 07m1 stop
$275Delta
Find Deal
Fri, Oct 31 - Mon, Nov 3

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

Our best Delta deals on San Juan to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Nov 6
SJU7:15 amSan Juan Luis Munoz Marin Intl
10h 42m
1 stop
IAD4:57 pmWashington, D.C. Dulles Intl
Nov 11
IAD7:01 amWashington, D.C. Dulles Intl
9h 25m
1 stop
SJU5:26 pmSan Juan Luis Munoz Marin Intl
$245
Find similar
Delta
Oct 31
SJU2:22 pmSan Juan Luis Munoz Marin Intl
8h 39m
1 stop
IAD11:01 pmWashington, D.C. Dulles Intl
Nov 3
IAD6:05 amWashington, D.C. Dulles Intl
7h 07m
1 stop
SJU2:12 pmSan Juan Luis Munoz Marin Intl
$275
Find similar
Delta
Nov 20
SJU3:20 pmSan Juan Luis Munoz Marin Intl
8h 43m
1 stop
IAD11:03 pmWashington, D.C. Dulles Intl
Dec 6
IAD12:19 pmWashington, D.C. Dulles Intl
10h 44m
1 stop
SJU12:03 amSan Juan Luis Munoz Marin Intl
$282
Find similar

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

Our best Frontier deals on San Juan to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Oct 23
SJU4:26 pmSan Juan Luis Munoz Marin Intl
3h 56m
IAD8:22 pmWashington, D.C. Dulles Intl
Oct 26
IAD6:15 amWashington, D.C. Dulles Intl
7h 54m
1 stop
SJU2:09 pmSan Juan Luis Munoz Marin Intl
$196
Find similar
Frontier
Oct 16
SJU4:26 pmSan Juan Luis Munoz Marin Intl
3h 56m
IAD8:22 pmWashington, D.C. Dulles Intl
Oct 20
IAD9:28 pmWashington, D.C. Dulles Intl
17h 56m
2 stops
SJU3:24 pmSan Juan Luis Munoz Marin Intl
$197
Find similar
Frontier
Oct 9
SJU4:26 pmSan Juan Luis Munoz Marin Intl
3h 56m
IAD8:22 pmWashington, D.C. Dulles Intl
Oct 11
IAD9:38 pmWashington, D.C. Dulles Intl
17h 46m
2 stops
SJU3:24 pmSan Juan Luis Munoz Marin Intl
$198
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Juan 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 September 16, 2025.
Use the filters below to find and compare flights from San Juan 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

Thu 10/23

4:26 pm-8:22 pm

Nonstop3h 56m

Washington, D.C. Dulles Intl

Sun 10/26

6:15 am-2:09 pm

1 stop7h 54m

$196

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/16

4:26 pm-8:22 pm

Nonstop3h 56m

Washington, D.C. Dulles Intl

Mon 10/20

9:28 pm-3:24 pm

2 stops17h 56m

$197

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/9

4:26 pm-8:22 pm

Nonstop3h 56m

Washington, D.C. Dulles Intl

Sat 10/11

9:38 pm-3:24 pm

2 stops17h 46m

$198

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 11/6

7:15 am-4:57 pm

1 stop10h 42m

Washington, D.C. Dulles Intl

Tue 11/11

7:01 am-5:26 pm

1 stop9h 25m

$245

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 11/5

8:20 am-4:49 pm

1 stop9h 29m

Washington, D.C. Dulles Intl

Sun 11/9

8:09 pm-1:38 pm

1 stop16h 29m

$251

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/9

4:26 pm-8:22 pm

Nonstop3h 56m

Washington, D.C. Dulles Intl

Mon 10/13

9:28 pm-1:44 am

1 stop28h 16m

$254

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/9

4:26 pm-8:22 pm

Nonstop3h 56m

Washington, D.C. Dulles Intl

Mon 10/13

9:28 pm-1:44 am

1 stop28h 16m

$256

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/16

4:55 pm-8:52 pm

Nonstop3h 57m

Washington, D.C. Dulles Intl

Wed 10/22

6:15 am-1:45 pm

1 stop7h 30m

$271

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 10/30

7:45 am-6:54 pm

1 stop11h 09m

Washington, D.C. Dulles Intl

Tue 11/4

7:55 am-5:05 pm

1 stop8h 10m

$272

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 10/31

2:22 pm-11:01 pm

1 stop8h 39m

Washington, D.C. Dulles Intl

Mon 11/3

6:05 am-2:12 pm

1 stop7h 07m

$275

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from San Juan 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 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 $348. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from San Juan to Washington, D.C. Dulles Intl Airport for around $688.

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 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 $545 on average. Flights to Washington, D.C. Dulles Intl Airport from San Juan in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest San Juan 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 - 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 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 $376 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 for as low as $285 on momondo.

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

There are 4 cabin classes available to choose from on San Juan 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.

Cheap San Juan to Washington, D.C. Dulles Intl Airport flight deals and tips

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

Fastest flight time

3h 56m

Direct flights

Every day
The fastest flight from San Juan to Washington, D.C. Dulles Intl Airport takes 3h 56m
Direct flights go from San Juan to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

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

    There are 1569.0 mi between San Juan and Washington, D.C. Dulles Intl. Typically, this will take 3h 56m by plane in normal conditions.

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

    Prices for flights from San Juan to Washington, D.C. Dulles Intl Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Juan 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.

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

Compare and see reviews for airlines that fly from San Juan to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $99Free CancellationRating
5.8
3,174 reviews
Search Frontier flights
United AirlinesPriceFrom $240Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
DeltaPriceFrom $269Free CancellationRating
7.9
7,957 reviews
Search Delta flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Juan to Washington, D.C.. momondo saves you time and could save you money on your trip.

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

All flight searches from San Juan to Washington, D.C. on momondo can be filtered to show those which offer 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?

Price alerts on flights to Washington, D.C. from San Juan are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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