Flights from Washington DC to San Juan (Puerto Rico)

Our cheapest offers for flights from Washington DC to San Juan (Puerto Rico)

Here you can compare cheap flights from Washington DC (IAD) to San Juan (Puerto Rico) (SJU) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to San Juan (Puerto Rico). Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Washington DC
San Juan (Puerto Rico)
Outbound
11/03/25
1 Stopover (MCO)
F94811, F91824
18h 14min
Return
11/12/25
1 Stopover (MCO)
F94725, F94812
28h 01min
Frontier Airlines ?
$205
Best option
Washington DC
San Juan (Puerto Rico)
Outbound
10/18/25
direct
UA2021
03h 55min
Return
11/17/25
direct
UA2022
04h 05min
United Airlines
$424
Washington DC
San Juan (Puerto Rico)
Pay attention to transfer at connecting flight
Outbound
09/19/25
3 Stopovers (LNS, PIT, MCO)
9X0248, 9X0157, NK3051, NK3166
31h 31min
Return
09/29/25
2 Stopovers (MCO, TYS)
NK3164, G43045, G41411
18h 38min
Southern Airways Express, Spirit Airlines
$471
Washington DC
San Juan (Puerto Rico)
Outbound
10/18/25
1 Stopover (MCO)
F94811, F91824
11h 41min
Return
11/17/25
1 Stopover (TPA)
F92215, F92954
13h 35min
Frontier Airlines
$267
Washington DC
San Juan (Puerto Rico)
Outbound
10/18/25
1 Stopover (MCO)
F94811, F91824
11h 41min
Return
11/17/25
1 Stopover (TPA)
F92215, F92954
13h 35min
Frontier Airlines
$277
Washington DC
San Juan (Puerto Rico)
Outbound
10/09/25
direct
F92906
03h 52min
Return
11/01/25
1 Stopover (ATL)
F92871, F93692
08h 34min
Frontier Airlines ?
$315
Washington DC
San Juan (Puerto Rico)
Outbound
06/18/25
1 Stopover (MIA)
F93747, F92284
17h 19min
Return
07/15/25
direct
F92905
03h 56min
Frontier Airlines
$365
Washington DC
San Juan (Puerto Rico)
Outbound
10/18/25
1 Stopover (CLT)
AA5447, AA2674
16h 45min
Return
11/17/25
1 Stopover (CLT)
AA2150, AA5194
16h 48min
American Airlines ?
$372
Washington DC
San Juan (Puerto Rico)
Outbound
06/18/25
1 Stopover (MIA)
F93747, F92284
17h 19min
Return
07/15/25
direct
F92905
03h 56min
Frontier Airlines
$375
Washington DC
San Juan (Puerto Rico)
Outbound
10/18/25
1 Stopover (CLT)
AA5447, AA2674
16h 45min
Return
11/17/25
1 Stopover (CLT)
AA2150, AA5194
16h 48min
American Airlines ?
$394
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Washington DC to San Juan (Puerto Rico)

Favorite airline: United Airlines
95 % of bookings on this flight route are made with United Airlines, Copa and Delta.
United Airlines
63 %
Copa
16 %
Delta
16 %
Stopover flights are the cheapest connection
On this route, direct flights are $ 7.00 more expensive than flights with a stopover.
non stop flight
1 stop
03h 54min
08h 36min
$482
$475
The favorite connection is non-stop
Non-stop flights are especially popular on this route. 77 % of travelers will book a direct flight.
Route
bookings
Direct flights
03h 54min, from $482
77 %
1 stopover Houston - George Bush Intercontinental Airport, TX
11h 42min, from $512
15 %
1 stopover Charlotte Douglas International Airport, NC
08h 36min, from $475
8 %

Important flight information

Flight information: Washington DC - San Juan (Puerto Rico)

Roundtrip from $204.12
Flight duration min. 03:46 / max. 05:20
Return flight duration min. 03:54/ max. 05:25
Distance 2537 km
Flights per week 11
Departure airport Airport Washington DC - Dulles International Airport, DC (IAD)
Arrival airport Airport San Juan - Luis Muñoz Marín International Airport (SJU)
Destination country Flights to Puerto Rico
Alternative flights to San Juan (Puerto Rico)
Flight destinations with a similar price