Is Southwest the cheapest airline to fly with from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport?

With an average price of $430 return, Southwest is not the cheapest airline to fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport with. Instead, for the lowest price, our data suggests flying with Spirit Airlines, where a return flight costs $284 on average.

Does Southwest fly direct to San Juan Luis Munoz Marin Intl Airport from Washington, D.C.?

No, Southwest does not fly the route directly.

What’s the cheapest day of the week to fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport with Southwest?

On average, the cheapest day of the week to fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport with Southwest is Wednesday, when prices are around $127. The most expensive day is generally Thursday, where the average price is around $173.

What’s the cheapest month to fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport with Southwest?

The cheapest month for Southwest flights to San Juan Luis Munoz Marin Intl Airport from Washington, D.C. is generally March, where plane tickets cost $168 on average. If possible, try to avoid the most expensive months of September and January, where tickets cost $318 and $321 respectively.

$123 Cheap Southwest Flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

WAS - SJU

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Cheap Southwest Flight Deals from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

Here are some of the best deals found on KAYAK recently from Southwest for round-trip flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip Southwest flight deals from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

Thu, Nov 13 - Sun, Nov 16

11:55 am - 7:50 pmDCA-SJU

6h 55m1 stop

5:40 am - 11:00 amSJU-DCA

6h 20m1 stop

$272Southwest

Find Deal

Thu, Nov 13 - Mon, Nov 17

7:30 am - 5:05 pmDCA-SJU

8h 35m1 stop

5:45 am - 3:55 pmSJU-DCA

11h 10m1 stop

$298Southwest

Find Deal

Fri, Nov 14 - Sun, Nov 16

11:55 am - 10:20 pmDCA-SJU

9h 25m1 stop

5:40 am - 11:00 amSJU-DCA

6h 20m1 stop

$299Southwest

Find Deal

Thu, Oct 30 - Tue, Nov 4

6:55 am - 2:45 pmDCA-SJU

7h 50m1 stop

5:45 am - 5:25 pmSJU-DCA

12h 40m2 stops

$309Southwest

Find Deal

Thu, Dec 11 - Mon, Dec 15

1:00 pm - 9:30 pmDCA-SJU

7h 30m1 stop

8:55 am - 6:15 pmSJU-DCA

10h 20m2 stops

$314Southwest

Find Deal

Sat, Feb 21 - Sat, Feb 28

6:10 am - 6:45 pmDCA-SJU

11h 35m1 stop

5:35 am - 3:45 pmSJU-DCA

11h 10m1 stop

$325Southwest

Find Deal

Wed, Oct 29 - Sat, Nov 1

6:55 am - 5:15 pmDCA-SJU

10h 20m2 stops

7:35 am - 4:40 pmSJU-DCA

9h 05m2 stops

$335Southwest

Find Deal

Fri, Dec 5 - Sun, Dec 7

11:40 am - 10:05 pmDCA-SJU

9h 25m1 stop

6:40 am - 12:20 pmSJU-DCA

6h 40m1 stop

$337Southwest

Find Deal

Fri, Dec 5 - Tue, Dec 9

1:40 pm - 12:35 amDCA-SJU

9h 55m2 stops

11:20 am - 8:30 pmSJU-DCA

10h 10m2 stops

$341Southwest

Find Deal

Mon, Dec 15 - Thu, Dec 18

1:00 pm - 9:30 pmDCA-SJU

7h 30m1 stop

6:40 am - 12:20 pmSJU-DCA

6h 40m1 stop

$349Southwest

Find Deal

Useful Info

Low season	September
High season	December
Cheapest flight	$123
Average price round-trip	$333

Best time to beat the crowds but there is an average 3% increase in price.

Most popular time to fly with an average 29% increase in price.

Flight from Reagan Washington National Airport to San Juan

(price for this month)

When to Book Flights with Southwest from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

Average price per month

Flight prices as travel date approaches

Is Southwest the cheapest airline to fly with from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport?
With an average price of $430 return, Southwest is not the cheapest airline to fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport with. Instead, for the lowest price, our data suggests flying with Spirit Airlines, where a return flight costs $284 on average.
What is the cheapest Southwest flight from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport?
In the last 3 days, the lowest price for a flight with Southwest from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport was $125 for a return flight and $75 for a one-way flight.
Does Southwest fly direct to San Juan Luis Munoz Marin Intl Airport from Washington, D.C.?
No, Southwest does not fly the route directly.
What’s the cheapest day of the week to fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport with Southwest?
On average, the cheapest day of the week to fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport with Southwest is Wednesday, when prices are around $127. The most expensive day is generally Thursday, where the average price is around $173.
What’s the cheapest month to fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport with Southwest?
The cheapest month for Southwest flights to San Juan Luis Munoz Marin Intl Airport from Washington, D.C. is generally March, where plane tickets cost $168 on average. If possible, try to avoid the most expensive months of September and January, where tickets cost $318 and $321 respectively.

8.0

Very good4,235 verified ratings

8.6Crew

8.1Boarding

8.0Comfort

7.0Food

7.5Entertainment

Pros +

Cons -

Show reviews that mention

10.0 Wonderful

Aleksandar, Oct 2025

OAK-SAN

On time, and it was not full flight

4.0 Mediocre

Annette, Oct 2025

LGA-MCI

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

10.0 Wonderful

Gerald, Oct 2025

SJC-PDX

Boarding quick & efficient. Crew was friendly. Arrived early

6.0 Okay

Hung, Oct 2025

PHX-ABQ

mandatory demand customer to check their carry on because not enough people check bags.

8.0 Very good

Annette, Oct 2025

MCI-LGA

Good non stop is always good

10.0 Wonderful

Gabriel, Sep 2025

DEN-SMF

Connecting flight is on time and boarding was a breeze!

10.0 Wonderful

Gabriel, Sep 2025

LGA-DEN

Easy boarding process. No delays!

10.0 Wonderful

Melissa, Sep 2025

MDW-DTW

Excellent

10.0 Wonderful

Melissa, Sep 2025

MSY-MDW

Excellent. Would encourage Southwest to keep current boarding procedures with free style seating. Makes for a fantastic experience

10.0 Wonderful

Robert, Sep 2025

RNO-LAS

As always, the entire Southwest experience was perfect. Purchasing the tickets on the Southwest web site was effortless, departure and arrival gates were spotless and comfortable, plane was clean and comfortable, crew was excellent and flight was on time. Wheelchair service in Las Vegas at departure was somewhat chaotic and disjointed, but I am not sure if that was Southwest problem, airport problem or combination.

Everything you need to know for your flight from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

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Flights to other cities

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Southwest flights

Cabin class types available on flights to San Juan Luis Munoz Marin Intl Airport

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

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

Prem Econ Class flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

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

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WAS - SJU

$123 Find Cheap Southwest Flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

Search hundreds of travel sites at once for deals on Southwest flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

Cheap Southwest Flight Deals from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

Recent round-trip Southwest flight deals from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

Recent one-way Southwest flight deals from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

Recent last minute Southwest flight deals from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

Recent direct Southwest flight deals from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

Good to know

When to Book Flights with Southwest from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

FAQs for flying to San Juan Luis Munoz Marin Intl Airport with Southwest

Is Southwest the cheapest airline to fly with from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport?

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

Does Southwest fly direct to San Juan Luis Munoz Marin Intl Airport from Washington, D.C.?

What’s the cheapest day of the week to fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport with Southwest?

What’s the cheapest month to fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport with Southwest?

Southwest Customer Reviews

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Everything you need to know for your flight from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport

Cabin class types available on flights to San Juan Luis Munoz Marin Intl Airport

Cabin classes available on flights to Washington, D.C.. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Complete your trip to San Juan Luis Munoz Marin Intl Airport with a hotel stay or car rental

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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Top Southwest flights

The most popular destinations for flights with Southwest according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.