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Cheap flights from Washington, D.C. to San Juan from $68

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 9/21. 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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0 bags

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Find the cheapest flights from Washington, D.C. to San Juan

Cheap round-trip flights

JetBlue Logo
8:00 am - 11:45 amDCA-SJU
3h 45mnonstop
JetBlue Logo
6:05 pm - 9:56 pmSJU-DCA
3h 51mnonstop
$131JetBlue
Find Deal
Tue, Sep 23 - Tue, Sep 23
United Airlines Logo
8:39 am - 12:34 pmIAD-SJU
3h 55mnonstop
United Airlines Logo
4:55 pm - 8:52 pmSJU-IAD
3h 57mnonstop
$136United Airlines
Find Deal
Sun, Sep 21 - Thu, Sep 25
Southwest Logo
12:55 pm - 8:45 pmDCA-SJU
7h 50m1 stop
Southwest Logo
3:30 pm - 10:25 pmSJU-DCA
6h 55m1 stop
$145Southwest
Find Deal
Fri, Sep 19 - Mon, Sep 22
American Airlines Logo
10:25 am - 10:11 pmIAD-SJU
11h 46m1 stop
American Airlines Logo
4:45 pm - 8:54 amSJU-IAD
16h 09m1 stop
$145American Airlines
Find Deal
Tue, Oct 21 - Wed, Oct 29
American Airlines Logo
9:30 am - 3:55 pmBWI-SJU
6h 25m1 stop
American Airlines Logo
4:45 pm - 11:34 pmSJU-BWI
6h 49m1 stop
$145American Airlines
Find Deal
Tue, Oct 21 - Wed, Oct 29
Southwest Logo
11:40 am - 11:10 pmDCA-SJU
11h 30m1 stop
Southwest Logo
7:00 am - 7:30 pmSJU-DCA
12h 30m1 stop
$150Southwest
Find Deal
Mon, Jul 28 - Fri, Aug 1
Spirit Airlines Logo
10:00 am - 1:40 pmBWI-SJU
3h 40mnonstop
Spirit Airlines Logo
1:21 am - 5:20 amSJU-BWI
3h 59mnonstop
$157Spirit Airlines
Find Deal
Wed, Aug 6 - Fri, Aug 8
Spirit Airlines Logo
7:35 pm - 11:36 pmBWI-SJU
4h 01mnonstop
Spirit Airlines Logo
7:05 am - 11:05 amSJU-BWI
4h 00mnonstop
$158Spirit Airlines
Find Deal
Thu, Sep 4 - Thu, Sep 11
Frontier Logo
11:11 am - 3:08 pmIAD-SJU
3h 57mnonstop
Frontier Logo
6:51 am - 10:47 amSJU-IAD
3h 56mnonstop
$197Frontier
Find Deal
Sat, Aug 23 - Sun, Aug 31
Frontier Logo
12:51 pm - 4:48 pmIAD-SJU
3h 57mnonstop
Frontier Logo
7:35 am - 11:31 amSJU-IAD
3h 56mnonstop
$202Frontier
Find Deal
Tue, Aug 12 - Sun, Aug 17

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

Our best Spirit Airlines deals on Washington, D.C. to San Juan Luis Munoz Marin Intl Airport flight tickets
Spirit Airlines
Aug 6
BWI10:00 amBaltimore/Washington
3h 40m
SJU1:40 pmSan Juan Luis Munoz Marin Intl
Aug 8
SJU1:21 amSan Juan Luis Munoz Marin Intl
3h 59m
BWI5:20 amBaltimore/Washington
$157
Find similar
Spirit Airlines
Sep 4
BWI7:35 pmBaltimore/Washington
4h 01m
SJU11:36 pmSan Juan Luis Munoz Marin Intl
Sep 11
SJU7:05 amSan Juan Luis Munoz Marin Intl
4h 00m
BWI11:05 amBaltimore/Washington
$158
Find similar
Spirit Airlines
Jul 26
BWI6:48 amBaltimore/Washington
3h 41m
SJU10:29 amSan Juan Luis Munoz Marin Intl
Aug 1
SJU1:21 amSan Juan Luis Munoz Marin Intl
3h 59m
BWI5:20 amBaltimore/Washington
$160
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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
Aug 23
IAD11:11 amWashington, D.C. Dulles Intl
3h 57m
SJU3:08 pmSan Juan Luis Munoz Marin Intl
Aug 31
SJU6:51 amSan Juan Luis Munoz Marin Intl
3h 56m
IAD10:47 amWashington, D.C. Dulles Intl
$197
Find similar
Frontier
Aug 12
IAD12:51 pmWashington, D.C. Dulles Intl
3h 57m
SJU4:48 pmSan Juan Luis Munoz Marin Intl
Aug 17
SJU7:35 amSan Juan Luis Munoz Marin Intl
3h 56m
IAD11:31 amWashington, D.C. Dulles Intl
$202
Find similar
Frontier
Aug 16
IAD1:37 pmWashington, D.C. Dulles Intl
13h 02m
1 stop
SJU2:39 amSan Juan Luis Munoz Marin Intl
Aug 23
SJU6:30 amSan Juan Luis Munoz Marin Intl
3h 56m
IAD10:26 amWashington, D.C. Dulles Intl
$203
Find similar

See travel insights to San Juan from

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 March, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $296.

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 $380. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday 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 $482.

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 afternoon are often more expensive with an average ticket price of $457.

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

Fly from Washington, D.C. Reagan-National 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 $462 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 $352 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 July 2025, prices for Washington, D.C. to San Juan Luis Munoz Marin Intl Airport flights are approximately 45% 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

$68

Fastest flight time

3h 40m

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 $68. 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 $131.
The fastest flight from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport takes 3h 40m
Direct flights go from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport every day.
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  • 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 40m.

  • 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 $83Free CancellationRating
5.9
3,271 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $115Free CancellationRating
6.3
8,055 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $199Free CancellationRating
7.4
8,846 reviews
Search United Airlines flights
JetBluePriceFrom $203Free CancellationRating
7.3
2,913 reviews
Search JetBlue flights
American AirlinesPriceFrom $222Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $234Free CancellationRating
8.0
7,951 reviews
Search Delta flights
SouthwestPriceFrom $322Free CancellationRating
8.0
4,249 reviews
Search Southwest flights

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

    Across 7 United Airlines flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport this week, the average price was $453, with the best United Airlines deals starting from $199 round-trip. 8,846 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

    $203 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 (7.3/10 from 2,913 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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