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Cheap flights from Washington, D.C. Dulles Intl Airport to San Juan from $65

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. Dulles Intl Airport to San Juan departing on 8/31. 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. Dulles Intl Airport to San Juan

Cheap round-trip flights

Frontier Logo
7:46 pm - 6:59 pmIAD-SJU
23h 13m1 stop
Frontier Logo
8:57 pm - 7:24 pmSJU-IAD
22h 27m1 stop
$147Frontier
Find Deal
Sun, Aug 17 - Fri, Aug 22
Frontier Logo
1:27 pm - 3:54 pmIAD-SJU
26h 27m1 stop
Frontier Logo
6:30 am - 10:26 amSJU-IAD
3h 56mnonstop
$150Frontier
Find Deal
Fri, Aug 15 - Sat, Aug 30
Frontier Logo
1:36 pm - 6:02 pmIAD-SJU
28h 26m1 stop
Frontier Logo
5:15 pm - 9:13 pmSJU-IAD
27h 58m1 stop
$152Frontier
Find Deal
Mon, Jul 14 - Thu, Jul 17
United Airlines Logo
5:32 pm - 10:22 pmIAD-SJU
3h 50mnonstop
United Airlines Logo
8:30 am - 11:35 amSJU-IAD
4h 05mnonstop
$156United Airlines
Find Deal
Tue, Nov 4 - Wed, Nov 12
Frontier Logo
6:10 am - 2:18 pmIAD-SJU
8h 08m1 stop
Frontier Logo
6:30 am - 10:26 amSJU-IAD
3h 56mnonstop
$157Frontier
Find Deal
Fri, Aug 15 - Sat, Aug 23
Frontier Logo
7:00 am - 3:15 pmIAD-SJU
7h 15m1 stop
Frontier Logo
4:42 pm - 7:43 pmSJU-IAD
28h 01m1 stop
$159Frontier
Find Deal
Sat, Nov 8 - Wed, Nov 12
United Airlines Logo
6:35 am - 2:44 pmIAD-SJU
8h 09m1 stop
United Airlines Logo
1:25 pm - 10:59 pmSJU-IAD
9h 34m1 stop
$165United Airlines
Find Deal
Tue, Aug 19 - Wed, Sep 24
American Airlines Logo
5:39 pm - 12:27 amIAD-SJU
6h 48m1 stop
American Airlines Logo
7:54 am - 11:58 pmSJU-IAD
16h 04m1 stop
$175American Airlines
Find Deal
Tue, Jul 15 - Fri, Jul 18
United Airlines Logo
6:35 am - 2:44 pmIAD-SJU
8h 09m1 stop
United Airlines Logo
3:56 pm - 12:32 amSJU-IAD
8h 36m1 stop
$185United Airlines
Find Deal
Sun, Aug 24 - Fri, Aug 29
United Airlines Logo
8:39 am - 12:34 pmIAD-SJU
3h 55mnonstop
United Airlines Logo
4:55 pm - 8:52 pmSJU-IAD
3h 57mnonstop
$186United Airlines
Find Deal
Tue, Sep 30 - Sun, Oct 5

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

Our best Frontier deals on Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Aug 17
IAD7:46 pmWashington, D.C. Dulles Intl
23h 13m
1 stop
SJU6:59 pmSan Juan Luis Munoz Marin Intl
Aug 22
SJU8:57 pmSan Juan Luis Munoz Marin Intl
22h 27m
1 stop
IAD7:24 pmWashington, D.C. Dulles Intl
Frontier
Aug 15
IAD1:27 pmWashington, D.C. Dulles Intl
26h 27m
1 stop
SJU3:54 pmSan Juan Luis Munoz Marin Intl
Aug 30
SJU6:30 amSan Juan Luis Munoz Marin Intl
3h 56m
IAD10:26 amWashington, D.C. Dulles Intl
Frontier
Jul 14
IAD1:36 pmWashington, D.C. Dulles Intl
28h 26m
1 stop
SJU6:02 pmSan Juan Luis Munoz Marin Intl
Jul 17
SJU5:15 pmSan Juan Luis Munoz Marin Intl
27h 58m
1 stop
IAD9:13 pmWashington, D.C. Dulles Intl

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

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
Nov 4
IAD5:32 pmWashington, D.C. Dulles Intl
3h 50m
SJU10:22 pmSan Juan Luis Munoz Marin Intl
Nov 12
SJU8:30 amSan Juan Luis Munoz Marin Intl
4h 05m
IAD11:35 amWashington, D.C. Dulles Intl
United Airlines
Aug 19
IAD6:35 amWashington, D.C. Dulles Intl
8h 09m
1 stop
SJU2:44 pmSan Juan Luis Munoz Marin Intl
Sep 24
SJU1:25 pmSan Juan Luis Munoz Marin Intl
9h 34m
1 stop
IAD10:59 pmWashington, D.C. Dulles Intl
United Airlines
Jul 15
IAD5:25 pmWashington, D.C. Dulles Intl
6h 37m
1 stop
SJU12:02 amSan Juan Luis Munoz Marin Intl
Jul 18
SJU3:56 pmSan Juan Luis Munoz Marin Intl
8h 34m
1 stop
IAD12:30 amWashington, D.C. Dulles Intl

See travel insights to San Juan from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport 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 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 June, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $397.

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. Dulles Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $381. 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. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $480.

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 $456.

What is the cheapest Washington, D.C. Dulles Intl 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. Dulles Intl - 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. Dulles Intl Airport 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. Dulles Intl Airport for as low as $352 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl 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.

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

As of July 2025, prices for Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport flights are approximately 32% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport (IAD to SJU) flight deals and tips

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

Best Price Found

$65

Fastest flight time

3h 50m

Direct flights

Every day
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from Washington, D.C. Dulles Intl Airport in the past 72 hours is $65. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $147.
The fastest flight from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport takes 3h 50m
Direct flights go from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport every day.

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

    San Juan Luis Munoz Marin Intl is 1573.5 mi away from Washington, D.C. Dulles Intl. A reasonable flight in good conditions will take 3h 50m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport 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 required travel and health documents for your San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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


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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $103Free CancellationRating
5.9
3,284 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $135Free CancellationRating
6.3
8,094 reviews
Search Spirit Airlines flights
JetBluePriceFrom $203Free CancellationRating
7.3
2,916 reviews
Search JetBlue flights
American AirlinesPriceFrom $224Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $234Free CancellationRating
8.0
7,983 reviews
Search Delta flights
United AirlinesPriceFrom $294Free CancellationRating
7.4
8,861 reviews
Search United Airlines flights
  • United Airlines Flights From Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport

    United Airlines flies from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport around 7 times per week, with 8,861 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport in the last 72 hours was $294 (round-trip), much lower than the average airfare cost of $513 for United Airlines flights on this route.

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

    The best Frontier deal for Washington, D.C. Dulles Intl Airport to San Juan Luis Munoz Marin Intl Airport flight tickets found on momondo in the last 72 hours was $103, round-trip. It should be noted that an average Frontier flight deal for this route in this time was higher, at $236 round-trip. Frontier operates 1 flight out of Washington, D.C. Dulles Intl Airport into San Juan Luis Munoz Marin Intl Airport in an average week, so prices vary by time and availability. 3,286 Frontier reviews by users on momondo have scored the airline at 5.9/10.


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?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to San Juan. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to San Juan from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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?

If you are not ready to book a flight from Washington, D.C. to San Juan now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Juan and let you know when they change.


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