Cheap flights from Washington, D.C. Reagan-National Airport to San Juan from $89

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to San Juan departing on 2/1. 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 Washington, D.C. Reagan-National Airport to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
JetBlue Logo
8:00 am - 12:42 pmDCA-SJU
3h 42mnonstop
JetBlue Logo
6:45 pm - 9:46 pmSJU-DCA
4h 01mnonstop
$198JetBlue
Find Deal
Sun, Jan 25 - Thu, Jan 29
JetBlue Logo
8:00 am - 12:42 pmDCA-SJU
3h 42mnonstop
JetBlue Logo
6:45 pm - 9:46 pmSJU-DCA
4h 01mnonstop
$200JetBlue
Find Deal
Wed, Jan 21 - Wed, Jan 28
JetBlue Logo
8:00 am - 12:50 pmDCA-SJU
3h 50mnonstop
JetBlue Logo
6:10 pm - 9:08 pmSJU-DCA
3h 58mnonstop
$204JetBlue
Find Deal
Mon, Nov 17 - Fri, Nov 21
Delta Logo
6:00 am - 1:05 pmDCA-SJU
6h 05m1 stop
Delta Logo
7:00 am - 4:29 pmSJU-DCA
10h 29m1 stop
$205Delta
Find Deal
Tue, Jan 27 - Wed, Feb 11
American Airlines Logo
5:55 am - 2:59 pmDCA-SJU
8h 04m1 stop
American Airlines Logo
7:07 am - 4:38 pmSJU-DCA
10h 31m1 stop
$215American Airlines
Find Deal
Mon, Jan 19 - Thu, Jan 22
Delta Logo
6:06 am - 2:10 pmDCA-SJU
7h 04m1 stop
Delta Logo
3:20 pm - 11:04 pmSJU-DCA
8h 44m1 stop
$220Delta
Find Deal
Mon, Nov 17 - Thu, Nov 20
American Airlines Logo
1:44 pm - 3:46 amDCA-SJU
13h 02m1 stop
American Airlines Logo
2:05 pm - 8:00 pmSJU-DCA
6h 55m1 stop
$225American Airlines
Find Deal
Sun, Nov 30 - Thu, Dec 4
United Airlines Logo
8:30 am - 9:26 pmDCA-SJU
11h 56m2 stops
United Airlines Logo
4:52 pm - 11:59 pmSJU-DCA
8h 07m1 stop
$257United Airlines
Find Deal
Mon, Nov 17 - Thu, Nov 20
United Airlines Logo
12:00 pm - 12:36 amDCA-SJU
11h 36m2 stops
United Airlines Logo
8:10 am - 3:38 pmSJU-DCA
8h 28m1 stop
$277United Airlines
Find Deal
Mon, Nov 17 - Fri, Nov 21
Southwest Logo
11:40 am - 10:20 pmDCA-SJU
9h 40m2 stops
Southwest Logo
5:45 am - 5:25 pmSJU-DCA
12h 40m2 stops
$288Southwest
Find Deal
Sun, Dec 7 - Thu, Dec 11

JetBlue flights from Washington, D.C. Reagan-National Airport to San Juan

Our best JetBlue deals on Washington, D.C. Reagan-National Airport to San Juan flight tickets
JetBlue
Jan 25
DCA8:00 amWashington, D.C. Reagan-National
3h 42m
SJU12:42 pmSan Juan Luis Munoz Marin Intl
Jan 29
SJU6:45 pmSan Juan Luis Munoz Marin Intl
4h 01m
DCA9:46 pmWashington, D.C. Reagan-National
JetBlue
Jan 21
DCA8:00 amWashington, D.C. Reagan-National
3h 42m
SJU12:42 pmSan Juan Luis Munoz Marin Intl
Jan 28
SJU6:45 pmSan Juan Luis Munoz Marin Intl
4h 01m
DCA9:46 pmWashington, D.C. Reagan-National
JetBlue
Nov 17
DCA8:00 amWashington, D.C. Reagan-National
3h 50m
SJU12:50 pmSan Juan Luis Munoz Marin Intl
Nov 21
SJU6:10 pmSan Juan Luis Munoz Marin Intl
3h 58m
DCA9:08 pmWashington, D.C. Reagan-National

United Airlines flights from Washington, D.C. Reagan-National Airport to San Juan

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to San Juan flight tickets
United Airlines
Nov 17
DCA8:30 amWashington, D.C. Reagan-National
11h 56m
2 stops
SJU9:26 pmSan Juan Luis Munoz Marin Intl
Nov 20
SJU4:52 pmSan Juan Luis Munoz Marin Intl
8h 07m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
United Airlines
Nov 17
DCA12:00 pmWashington, D.C. Reagan-National
11h 36m
2 stops
SJU12:36 amSan Juan Luis Munoz Marin Intl
Nov 21
SJU8:10 amSan Juan Luis Munoz Marin Intl
8h 28m
1 stop
DCA3:38 pmWashington, D.C. Reagan-National
United Airlines
Nov 15
DCA6:00 amWashington, D.C. Reagan-National
14h 00m
2 stops
SJU9:00 pmSan Juan Luis Munoz Marin Intl
Nov 21
SJU2:05 amSan Juan Luis Munoz Marin Intl
8h 24m
1 stop
DCA9:29 amWashington, D.C. Reagan-National

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport to San Juan 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 3, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sun 1/25

8:00 am-12:42 pm

Nonstop3h 42m

San Juan Luis Munoz Marin Intl

Thu 1/29

6:45 pm-9:46 pm

Nonstop4h 01m

$198

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Wed 1/21

8:00 am-12:42 pm

Nonstop3h 42m

San Juan Luis Munoz Marin Intl

Wed 1/28

6:45 pm-9:46 pm

Nonstop4h 01m

$200

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 11/17

8:00 am-12:50 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Fri 11/21

6:10 pm-9:08 pm

Nonstop3h 58m

$204

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Tue 1/27

6:00 am-1:05 pm

1 stop6h 05m

San Juan Luis Munoz Marin Intl

Wed 2/11

7:00 am-4:29 pm

1 stop10h 29m

$205

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 1/19

5:55 am-2:59 pm

1 stop8h 04m

San Juan Luis Munoz Marin Intl

Thu 1/22

7:07 am-4:38 pm

1 stop10h 31m

$215

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 11/17

6:06 am-2:10 pm

1 stop7h 04m

San Juan Luis Munoz Marin Intl

Thu 11/20

3:20 pm-11:04 pm

1 stop8h 44m

$220

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sun 11/30

1:44 pm-3:46 am

1 stop13h 02m

San Juan Luis Munoz Marin Intl

Thu 12/4

2:05 pm-8:00 pm

1 stop6h 55m

$225

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 11/17

8:30 am-9:26 pm

2 stops11h 56m

San Juan Luis Munoz Marin Intl

Thu 11/20

4:52 pm-11:59 pm

1 stop8h 07m

$257

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Mon 11/17

12:00 pm-12:36 am

2 stops11h 36m

San Juan Luis Munoz Marin Intl

Fri 11/21

8:10 am-3:38 pm

1 stop8h 28m

$277

Washington, D.C.San Juan

DCA - SJU

DCASJU

Washington, D.C. Reagan-National

Sun 12/7

11:40 am-10:20 pm

2 stops9h 40m

San Juan Luis Munoz Marin Intl

Thu 12/11

5:45 am-5:25 pm

2 stops12h 40m

$288

Flights are sorted by cheapest round-trip flights first.

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See travel insights to San Juan from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to San Juan

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 San Juan?

If you’re not able to fly to San Juan in October, then February is your next best option. Flight prices from Washington, D.C. Reagan-National Airport to San Juan during February average around $385.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Washington, D.C. Reagan-National Airport to San Juan is on a Tuesday when prices can be found for as low as $367. The most expensive day to fly to San Juan is Saturday, with ticket prices averaging around $467.

What is the cheapest time of day to depart on your flight to San Juan?

The cheapest time of day to fly to San Juan is at noon when flights can be purchased for as low as $238. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $489 on average. Flights to San Juan from Washington, D.C. Reagan-National Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Washington, D.C. Reagan-National to San Juan flight route?

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

How far in advance should I book a flight to San Juan?

You are more likely to see cheaper flights to San Juan from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $424 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Washington, D.C. Reagan-National Airport for as low as $366 on momondo.

What cabin class options are available on Washington, D.C. Reagan-National to San Juan flights?

There is only 1 cabin class available to choose from on Washington, D.C. Reagan-National to San Juan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Washington, D.C. Reagan-National Airport to San Juan flight deals and tips

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

Fastest flight time

3h 40m

Direct flights

Every day

Airports in San Juan

1 airport
The fastest flight from Washington, D.C. Reagan-National Airport to San Juan takes 3h 40m
Direct flights go from Washington, D.C. Reagan-National Airport to San Juan every day.
There is 1 airport near San Juan: San Juan Luis Munoz Marin Intl (SJU)
  • How far is Washington, D.C. Reagan-National to San Juan by plane?

    A flight from Washington, D.C. Reagan-National to San Juan will travel around 1552.6 mi. 3h 42m is a normal flight duration for this route.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to San Juan are refreshed on a daily basis.

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

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to San Juan?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Reagan-National Airport to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The required travel and health documents for your San Juan trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Washington, D.C. Reagan-National Airport to San Juan

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to San Juan with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $85Free CancellationRating
5.8
3,117 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $123Free CancellationRating
6.3
8,114 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $220Free CancellationRating
8.0
4,238 reviews
Search Southwest flights
United AirlinesPriceFrom $220Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
DeltaPriceFrom $225Free CancellationRating
7.9
8,001 reviews
Search Delta flights
JetBluePriceFrom $238Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights
American AirlinesPriceFrom $245Free CancellationRating
7.2
11,036 reviews
Search American Airlines flights

Why use momondo?

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

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

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

momondo does allow users to show only those flights to San Juan from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to San Juan.

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

Price alerts on flights to San Juan from Washington, D.C. 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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1 adult
Wed 12/3
Wed 12/10

Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan