Check-in at IAD can be crowded in the afternoon and evening. Arrive early to navigate the busy check-in area smoothly.
Round-trip from | $166 (CheapOair) |
---|---|
One-way from | $83 (FlightHub) |
Popular in | December |
Cheapest in | March |
Average price | $306 |
Good round-trip deal | $224 or less |
Good one-way deal | $112 or less |
Fly from
Fly to
Route
Depart
Return
Price
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Mon 11/10
6:45 am-4:23 pm
1 stop8h 38m
San Juan Luis Munoz Marin Intl
Mon 11/17
6:00 am-4:49 pm
1 stop11h 49m
Washington, D.C.San Juan
IAD - SJU
IADSJU
Washington, D.C. Dulles Intl
Thu 10/16
11:44 am-3:36 pm
Nonstop3h 52m
San Juan Luis Munoz Marin Intl
Sun 10/19
7:00 am-10:56 am
Nonstop3h 56m
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Sun 8/31
12:11 pm-4:03 pm
Nonstop3h 52m
San Juan Luis Munoz Marin Intl
Thu 9/18
7:05 am-11:05 am
Nonstop4h 00m
Washington, D.C.San Juan
IAD - SJU
IADSJU
Washington, D.C. Dulles Intl
Wed 10/8
8:39 am-12:34 pm
Nonstop3h 55m
San Juan Luis Munoz Marin Intl
Wed 10/8
4:55 pm-8:52 pm
Nonstop3h 57m
BaltimoreSan Juan
BWI - SJU
BWISJU
Baltimore/Washington
Sun 8/24
12:11 pm-4:03 pm
Nonstop3h 52m
San Juan Luis Munoz Marin Intl
Thu 8/28
7:25 am-11:26 am
Nonstop4h 01m
Washington, D.C.San Juan
DCA - SJU
DCASJU
Washington, D.C. Reagan-National
Mon 9/22
8:07 pm-12:47 pm
1 stop16h 40m
San Juan Luis Munoz Marin Intl
Tue 9/23
4:43 pm-11:01 pm
1 stop6h 18m
Washington, D.C.San Juan
IAD - SJU
IADSJU
Washington, D.C. Dulles Intl
Tue 10/21
8:09 am-10:10 pm
1 stop14h 01m
San Juan Luis Munoz Marin Intl
Wed 10/29
4:45 pm-9:55 am
1 stop17h 10m
Washington, D.C.San Juan
IAD - SJU
IADSJU
Washington, D.C. Dulles Intl
Mon 12/8
6:10 am-2:15 pm
1 stop7h 05m
San Juan Luis Munoz Marin Intl
Wed 12/10
3:25 pm-11:00 pm
1 stop8h 35m
Washington, D.C.San Juan
DCA - SJU
DCASJU
Washington, D.C. Reagan-National
Tue 9/2
6:05 am-4:27 pm
1 stop10h 22m
San Juan Luis Munoz Marin Intl
Fri 9/19
12:58 pm-10:42 pm
1 stop9h 44m
Washington, D.C.San Juan
DCA - SJU
DCASJU
Washington, D.C. Reagan-National
Wed 8/27
10:30 am-5:42 pm
1 stop7h 12m
San Juan Luis Munoz Marin Intl
Wed 9/3
8:00 am-5:00 pm
1 stop9h 00m
Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport at noon. If you’re flexible enough to do this you can expect to save up to 66% on your trip compared to booking a flight in the evening.
Travelers seeking maximum savings on their Washington, D.C. to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Tuesday at noon when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from WAS to SJU are scheduled on a Tuesday (4 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).
Orlando (MCO) – chosen by Cheapflights users on 59% of 1-stop itineraries from Washington, D.C. to San Juan Luis Munoz Marin Intl Airport on Cheapflights.
Orlando (MCO) is the most affordable 1-stop option, with an average round-trip price of $152.
Flights via Fort Lauderdale (FLL) have the shortest average one-way travel time for 1-stop routes: 4h 15m.
Flights via Newark (EWR) offer the fastest connection on this route, with an average layover time of 1h 39m.
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Gina,Jul 2025
LAS - DEN
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Gina,Jul 2025
LAS - DEN
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Gina,Jul 2025
LAS - DEN
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Gina,Jul 2025
LAS - DEN
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Gina,Jul 2025
LAS - DEN
Comfort
Boarding
Crew
Entertainment
Food
Overall
Reviews
Gina,Jul 2025
LAS - DEN
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$83 | Average$242 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$115 | Average$284 | FlexibilityNo cancel fee | On-time65% | |
Cheapest$173 | Average$392 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$199 | Average$457 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$215 | Average$476 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$234 | Average$393 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$265 | Average$467 | FlexibilityNo cancel fee | On-time63% |