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Cheap flights from San Juan 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 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:50 am - 6:16 pm
SJU
-
IAD
11h 26m1 stop
Frontier Logo
8:26 pm - 1:20 am
IAD
-
SJU
3h 54mnonstop
$167Frontier
Sat, Dec 20 - Sun, Jan 4
Frontier Logo
3:55 am - 9:30 pm
SJU
-
IAD
18h 35m1 stop
Frontier Logo
8:26 pm - 1:20 am
IAD
-
SJU
3h 54mnonstop
$168Frontier
Fri, Dec 19 - Sun, Jan 4
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
2:09 pm - 2:39 am
IAD
-
SJU
11h 30m1 stop
$176Frontier
Mon, Dec 22 - Mon, Dec 29
Frontier Logo
4:18 pm - 7:31 pm
SJU
-
IAD
4h 13mnonstop
Frontier Logo
9:58 pm - 3:59 pm
IAD
-
SJU
17h 01m1 stop
$179Frontier
Sat, Dec 20 - Tue, Dec 30
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
12:14 pm - 3:22 pm
SJU
-
IAD
4h 08mnonstop
Frontier Logo
7:14 pm - 11:59 pm
IAD
-
SJU
3h 45mnonstop
$181Frontier
Sat, Jan 17 - Mon, Jan 19
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 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
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 19
SJU3:55 amSan Juan Luis Munoz Marin Intl
18h 35m
1 stop
IAD9:30 pmWashington, D.C. Dulles Intl
Jan 4
IAD8:26 pmWashington, D.C. Dulles Intl
3h 54m
SJU1:20 amSan Juan Luis Munoz Marin Intl
$168
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

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

Our best American Airlines deals on San Juan 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
SJU8:20 amSan Juan Luis Munoz Marin Intl
15h 52m
1 stop
IAD11:12 pmWashington, D.C. Dulles Intl
Jan 19
IAD7:01 amWashington, D.C. Dulles Intl
6h 58m
1 stop
SJU2:59 pmSan Juan Luis Munoz Marin Intl
$228
Find similar
American Airlines
Feb 24
SJU5:51 pmSan Juan Luis Munoz Marin Intl
17h 31m
1 stop
IAD10:22 amWashington, D.C. Dulles Intl
Mar 10
IAD5:00 amWashington, D.C. Dulles Intl
6h 55m
1 stop
SJU11:55 amSan Juan Luis Munoz Marin Intl
$230
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 December 11, 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

Sat 12/20

7:50 am-6:16 pm

1 stop11h 26m

Washington, D.C. Dulles Intl

Sun 1/4

8:26 pm-1:20 am

Nonstop3h 54m

$167

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 12/19

3:55 am-9:30 pm

1 stop18h 35m

Washington, D.C. Dulles Intl

Sun 1/4

8:26 pm-1:20 am

Nonstop3h 54m

$168

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

Mon 12/29

2:09 pm-2:39 am

1 stop11h 30m

$176

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

Tue 12/30

9:58 pm-3:59 pm

1 stop17h 01m

$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

Sat 1/17

12:14 pm-3:22 pm

Nonstop4h 08m

Washington, D.C. Dulles Intl

Mon 1/19

7:14 pm-11:59 pm

Nonstop3h 45m

$181

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

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 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 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 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 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 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 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 $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 for as low as $205 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 59m

Direct flights

Tue, Wed, Thu, Fri, Sat and Sun
The fastest flight from San Juan to Washington, D.C. Dulles Intl Airport takes 3h 59m
Direct flights go from San Juan to Washington, D.C. Dulles Intl Airport on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
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 59m 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 $98Free CancellationRating
5.8
3,085 reviews
Search Frontier flights
United AirlinesPriceFrom $232Free CancellationRating
7.4
9,093 reviews
Search United Airlines flights
DeltaPriceFrom $269Free CancellationRating
7.9
8,006 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
National Harbor
Gettysburg
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Harpers Ferry
Rockville
Gaithersburg
Reston
Manassas
Sterling
Fairfax

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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