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Cheap flights from Washington, D.C. to San Juan from $83

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. to San Juan departing on 11/13. 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. to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:38 am - 3:32 pmIAD-SJU
3h 54mnonstop
Frontier Logo
4:18 pm - 7:31 pmSJU-IAD
4h 13mnonstop
$194Frontier
Find Deal
Sun, Dec 14 - Sun, Dec 21
Frontier Logo
10:38 am - 3:32 pmIAD-SJU
3h 54mnonstop
Frontier Logo
4:18 pm - 7:31 pmSJU-IAD
4h 13mnonstop
$196Frontier
Find Deal
Sun, Dec 14 - Sun, Dec 21
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
Delta Logo
12:39 pm - 11:13 pmDCA-SJU
9h 34m1 stop
Delta Logo
3:20 pm - 11:04 pmSJU-DCA
8h 44m1 stop
$200Delta
Find Deal
Tue, Nov 18 - Thu, Nov 20
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
12:40 pm - 8:57 pmIAD-SJU
7h 17m1 stop
Delta Logo
6:27 pm - 12:24 amSJU-IAD
6h 57m1 stop
$205Delta
Find Deal
Sun, Feb 1 - Thu, Feb 5
United Airlines Logo
5:32 pm - 10:22 pmIAD-SJU
3h 50mnonstop
United Airlines Logo
5:50 pm - 8:55 pmSJU-IAD
4h 05mnonstop
$216United Airlines
Find Deal
Mon, Dec 8 - Thu, Dec 11
Spirit Airlines Logo
11:14 am - 4:00 pmBWI-SJU
3h 46mnonstop
Spirit Airlines Logo
6:00 am - 4:49 pmSJU-BWI
11h 49m1 stop
$223Spirit Airlines
Find Deal
Sun, Jan 4 - Mon, Jan 12
Spirit Airlines Logo
11:14 am - 4:00 pmBWI-SJU
3h 46mnonstop
Spirit Airlines Logo
6:00 am - 4:49 pmSJU-BWI
11h 49m1 stop
$224Spirit Airlines
Find Deal
Mon, Jan 5 - Mon, Jan 12
United Airlines Logo
5:32 pm - 10:22 pmIAD-SJU
3h 50mnonstop
United Airlines Logo
8:30 am - 11:35 amSJU-IAD
4h 05mnonstop
$245United Airlines
Find Deal
Thu, Dec 11 - Thu, Dec 18

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

Our best Frontier deals on Washington, D.C. to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Dec 14
IAD10:38 amWashington, D.C. Dulles Intl
3h 54m
SJU3:32 pmSan Juan Luis Munoz Marin Intl
Dec 21
SJU4:18 pmSan Juan Luis Munoz Marin Intl
4h 13m
IAD7:31 pmWashington, D.C. Dulles Intl
$194
Find similar
Frontier
Dec 14
IAD10:38 amWashington, D.C. Dulles Intl
3h 54m
SJU3:32 pmSan Juan Luis Munoz Marin Intl
Dec 21
SJU4:18 pmSan Juan Luis Munoz Marin Intl
4h 13m
IAD7:31 pmWashington, D.C. Dulles Intl
$196
Find similar
Frontier
Dec 30
IAD8:15 pmWashington, D.C. Dulles Intl
3h 54m
SJU1:09 amSan Juan Luis Munoz Marin Intl
Jan 16
SJU3:39 pmSan Juan Luis Munoz Marin Intl
4h 08m
IAD6:47 pmWashington, D.C. Dulles Intl
$197
Find similar

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

Our best JetBlue deals on Washington, D.C. to San Juan Luis Munoz Marin Intl Airport 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
$198
Find similar
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
$204
Find similar
JetBlue
Dec 9
DCA8:00 amWashington, D.C. Reagan-National
3h 51m
SJU12:51 pmSan Juan Luis Munoz Marin Intl
Dec 9
SJU6:40 pmSan Juan Luis Munoz Marin Intl
3h 57m
DCA9:37 pmWashington, D.C. Reagan-National
$211
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to San Juan Luis Munoz Marin 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 Washington, D.C. to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 12/14

10:38 am-3:32 pm

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

Sun 12/21

4:18 pm-7:31 pm

Nonstop4h 13m

$194

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 12/14

10:38 am-3:32 pm

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

Sun 12/21

4:18 pm-7:31 pm

Nonstop4h 13m

$196

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

Tue 11/18

12:39 pm-11:13 pm

1 stop9h 34m

San Juan Luis Munoz Marin Intl

Thu 11/20

3:20 pm-11:04 pm

1 stop8h 44m

$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

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Sun 2/1

12:40 pm-8:57 pm

1 stop7h 17m

San Juan Luis Munoz Marin Intl

Thu 2/5

6:27 pm-12:24 am

1 stop6h 57m

$205

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Mon 12/8

5:32 pm-10:22 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Thu 12/11

5:50 pm-8:55 pm

Nonstop4h 05m

$216

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Sun 1/4

11:14 am-4:00 pm

Nonstop3h 46m

San Juan Luis Munoz Marin Intl

Mon 1/12

6:00 am-4:49 pm

1 stop11h 49m

$223

BaltimoreSan Juan

BWI - SJU

BWISJU

Baltimore/Washington

Mon 1/5

11:14 am-4:00 pm

Nonstop3h 46m

San Juan Luis Munoz Marin Intl

Mon 1/12

6:00 am-4:49 pm

1 stop11h 49m

$224

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Thu 12/11

5:32 pm-10:22 pm

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Thu 12/18

8:30 am-11:35 am

Nonstop4h 05m

$245

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Washington, D.C. to San Juan Luis Munoz Marin 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 Washington, D.C. and San Juan Luis Munoz Marin Intl Airport?

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel to San Juan Luis Munoz Marin 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 $295.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Washington, D.C. is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $367. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Washington, D.C. because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $467.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is at noon when flights can be purchased for as low as $238. Flights in the evening are often more expensive with an average ticket price of $489.

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

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

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $412 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Washington, D.C. for as low as $337 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. to San Juan Luis Munoz Marin 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 Washington, D.C. to San Juan Luis Munoz Marin Intl Airport flights?

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

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

As of November 2025, prices for Washington, D.C. to San Juan Luis Munoz Marin Intl Airport flights are approximately 5% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$77

Fastest flight time

3h 39m

Direct flights

Every day
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from Washington, D.C. in the past 72 hours is $77. The best round-trip flight deal from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $308.
The fastest flight from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport takes 3h 39m
Direct flights go from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport every day.
Search flight deals

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

    San Juan Luis Munoz Marin Intl is 1560.2 mi away from Washington, D.C.. In terms of flight time, this usually takes a little over 3h 42m.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The travel and health documents you'll need for your trip to San Juan Luis Munoz Marin 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 San Juan Luis Munoz Marin 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 Washington, D.C. to San Juan Luis Munoz Marin Intl Airport?

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

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

Compare and see reviews for airlines that fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $85Free CancellationRating
5.8
3,116 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $123Free CancellationRating
6.3
8,112 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $145Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
DeltaPriceFrom $158Free CancellationRating
7.9
8,002 reviews
Search Delta flights
JetBluePriceFrom $161Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights
United AirlinesPriceFrom $199Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
SouthwestPriceFrom $220Free CancellationRating
8.0
4,237 reviews
Search Southwest flights

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

    Across 14 United Airlines flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport this week, the average price was $445, with the best United Airlines deals starting from $199 round-trip. 8,998 users have rated United Airlines on momondo, with an average score of 7.4/10.

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

    $161 is the best JetBlue flight deal from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport found on momondo over the last 72 hours. The average JetBlue ticket price found was closer to $396, however, with flight time and availability significantly affecting the price. JetBlue (7.2/10 from 2,907 user reviews) flies into San Juan Luis Munoz Marin Intl Airport from Washington, D.C. 7 times in an average week so prices can vary.

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Caguas
Humacao
Rio Grande
Bayamón

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to San Juan for you.

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

Yes. momondo enables you to select and highlight flights to San Juan from Washington, D.C. with this policy.

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?

Of course. momondo tracks the price of Washington, D.C. to San Juan 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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