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Cheap flights from San Juan to Washington, D.C. from $101

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Juan to Washington, D.C. departing on 12/7. 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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Frontier Logo
9:00 am - 11:29 pmSJU-IAD
14h 29m2 stops
Frontier Logo
7:26 pm - 12:18 amIAD-SJU
3h 52mnonstop
$150Frontier
Find Deal
Fri, Oct 31 - Sun, Nov 2
Frontier Logo
6:30 am - 9:43 amSJU-IAD
4h 13mnonstop
Frontier Logo
10:38 am - 3:32 pmIAD-SJU
3h 54mnonstop
$155Frontier
Find Deal
Thu, Dec 4 - Sun, Dec 7
Frontier Logo
11:29 am - 2:42 pmSJU-IAD
4h 13mnonstop
Frontier Logo
9:48 pm - 5:54 pmIAD-SJU
19h 06m2 stops
$156Frontier
Find Deal
Fri, Jan 23 - Mon, Jan 26
Frontier Logo
6:30 am - 9:43 amSJU-IAD
4h 13mnonstop
Frontier Logo
10:38 am - 3:32 pmIAD-SJU
3h 54mnonstop
$167Frontier
Find Deal
Thu, Dec 4 - Sun, Dec 7
Frontier Logo
3:45 pm - 6:41 pmSJU-IAD
3h 56mnonstop
Frontier Logo
6:00 am - 3:19 pmIAD-SJU
8h 19m1 stop
$174Frontier
Find Deal
Thu, Nov 13 - Mon, Nov 17
Frontier Logo
4:31 pm - 12:11 amSJU-IAD
8h 40m1 stop
Frontier Logo
4:04 pm - 1:32 amIAD-SJU
8h 28m1 stop
$175Frontier
Find Deal
Fri, Nov 14 - Sun, Nov 16
Multiple Airlines Logo
3:45 pm - 6:41 pmSJU-IAD
3h 56mnonstop
Multiple Airlines Logo
10:54 pm - 4:10 pmIAD-SJU
16h 16m3 stops
$207Multiple Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 16
American Airlines Logo
2:05 pm - 7:21 pmSJU-IAD
6h 16m1 stop
American Airlines Logo
6:24 am - 3:54 pmIAD-SJU
8h 30m1 stop
$215American Airlines
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Thu, Nov 13 - Sun, Nov 16
American Airlines Logo
4:44 pm - 11:59 pmSJU-IAD
8h 15m1 stop
American Airlines Logo
7:59 am - 8:48 pmIAD-SJU
11h 49m1 stop
$220American Airlines
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Thu, Nov 13 - Mon, Nov 17
American Airlines Logo
8:20 am - 4:49 pmSJU-IAD
9h 29m1 stop
American Airlines Logo
7:59 am - 8:48 pmIAD-SJU
11h 49m1 stop
$235American Airlines
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Wed, Nov 5 - Mon, Nov 10

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

Our best Frontier deals on San Juan to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Oct 23
SJU4:26 pmSan Juan Luis Munoz Marin Intl
3h 56m
IAD8:22 pmWashington, D.C. Dulles Intl
Oct 26
IAD9:07 pmWashington, D.C. Dulles Intl
3h 52m
SJU12:59 amSan Juan Luis Munoz Marin Intl
$149
Find similar
Frontier
Oct 31
SJU9:00 amSan Juan Luis Munoz Marin Intl
14h 29m
2 stops
IAD11:29 pmWashington, D.C. Dulles Intl
Nov 2
IAD7:26 pmWashington, D.C. Dulles Intl
3h 52m
SJU12:18 amSan Juan Luis Munoz Marin Intl
$150
Find similar
Frontier
Dec 4
SJU6:30 amSan Juan Luis Munoz Marin Intl
4h 13m
IAD9:43 amWashington, D.C. Dulles Intl
Dec 7
IAD10:38 amWashington, D.C. Dulles Intl
3h 54m
SJU3:32 pmSan Juan Luis Munoz Marin Intl
$155
Find similar

American Airlines flights from San Juan to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on San Juan to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Nov 13
SJU2:05 pmSan Juan Luis Munoz Marin Intl
6h 16m
1 stop
IAD7:21 pmWashington, D.C. Dulles Intl
Nov 16
IAD6:24 amWashington, D.C. Dulles Intl
8h 30m
1 stop
SJU3:54 pmSan Juan Luis Munoz Marin Intl
$215
Find similar
American Airlines
Nov 13
SJU4:44 pmSan Juan Luis Munoz Marin Intl
8h 15m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
Nov 17
IAD7:59 amWashington, D.C. Dulles Intl
11h 49m
1 stop
SJU8:48 pmSan Juan Luis Munoz Marin Intl
$220
Find similar
American Airlines
Nov 5
SJU8:20 amSan Juan Luis Munoz Marin Intl
9h 29m
1 stop
IAD4:49 pmWashington, D.C. Dulles Intl
Nov 10
IAD7:59 amWashington, D.C. Dulles Intl
11h 49m
1 stop
SJU8:48 pmSan Juan Luis Munoz Marin Intl
$235
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Juan to Washington, D.C. Dulles 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 October 21, 2025.
Use the filters below to find and compare flights from San Juan to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 10/31

9:00 am-11:29 pm

2 stops14h 29m

Washington, D.C. Dulles Intl

Sun 11/2

7:26 pm-12:18 am

Nonstop3h 52m

$150

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 12/4

6:30 am-9:43 am

Nonstop4h 13m

Washington, D.C. Dulles Intl

Sun 12/7

10:38 am-3:32 pm

Nonstop3h 54m

$155

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 1/23

11:29 am-2:42 pm

Nonstop4h 13m

Washington, D.C. Dulles Intl

Mon 1/26

9:48 pm-5:54 pm

2 stops19h 06m

$156

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 12/4

6:30 am-9:43 am

Nonstop4h 13m

Washington, D.C. Dulles Intl

Sun 12/7

10:38 am-3:32 pm

Nonstop3h 54m

$167

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 11/13

3:45 pm-6:41 pm

Nonstop3h 56m

Washington, D.C. Dulles Intl

Mon 11/17

6:00 am-3:19 pm

1 stop8h 19m

$174

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Fri 11/14

4:31 pm-12:11 am

1 stop8h 40m

Washington, D.C. Dulles Intl

Sun 11/16

4:04 pm-1:32 am

1 stop8h 28m

$175

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 11/13

3:45 pm-6:41 pm

Nonstop3h 56m

Washington, D.C. Dulles Intl

Sun 11/16

10:54 pm-4:10 pm

3 stops16h 16m

$207

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 11/13

2:05 pm-7:21 pm

1 stop6h 16m

Washington, D.C. Dulles Intl

Sun 11/16

6:24 am-3:54 pm

1 stop8h 30m

$215

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 11/13

4:44 pm-11:59 pm

1 stop8h 15m

Washington, D.C. Dulles Intl

Mon 11/17

7:59 am-8:48 pm

1 stop11h 49m

$220

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Wed 11/5

8:20 am-4:49 pm

1 stop9h 29m

Washington, D.C. Dulles Intl

Mon 11/10

7:59 am-8:48 pm

1 stop11h 49m

$235

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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from San Juan to Washington, D.C. Dulles 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 Washington, D.C. Dulles Intl Airport?

In general, July is the cheapest month to fly from San Juan to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $223. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of July, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $290.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $340. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from San Juan to Washington, D.C. Dulles Intl Airport for around $707.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from San Juan at noon is the least expensive time of day to depart. momondo users have found prices as low as $369 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $512 on average. Flights to Washington, D.C. Dulles Intl Airport from San Juan in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from San Juan when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $370 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from San Juan for as low as $241 on momondo.

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

There are 4 cabin classes available to choose from on San Juan to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap San Juan to Washington, D.C. Dulles Intl Airport flight deals and tips

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

Fastest flight time

3h 56m

Direct flights

Every day
The fastest flight from San Juan to Washington, D.C. Dulles Intl Airport takes 3h 56m
Direct flights go from San Juan to Washington, D.C. Dulles Intl Airport every day.
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  • How far is San Juan to Washington, D.C. Dulles Intl by plane?

    There are 1569.0 mi between San Juan and Washington, D.C. Dulles Intl. Typically, this will take 3h 56m by plane in normal conditions.

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

    Prices for flights from San Juan to Washington, D.C. Dulles Intl Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Juan to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles 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 Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Compare and see reviews for airlines that fly from San Juan to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $99Free CancellationRating
5.8
3,130 reviews
Search Frontier flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
8,991 reviews
Search United Airlines flights
DeltaPriceFrom $269Free CancellationRating
7.9
7,978 reviews
Search Delta flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Fairfax
Gaithersburg
Sterling

Why use momondo?

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

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

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

All flight searches from San Juan to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between San Juan and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Washington, D.C. from San Juan 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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