The Dulles to San Juan route connects Washington Dulles International Airport (IAD) in US with Luis Munoz Marin International Airport (SJU) in PR. This medium-haul flight covers approximately 1810 miles (2913 km) with a typical flight time of 3h 23m. This route is served by 2 airlines: Frontier, United. AirportRoutes has tracked 2 daily flights on this route.
Washington Dulles International Airport
KIADIADLuis Munoz Marin International Airport
TJSJSJU2
Operators2
Daily Flights1810
Miles3h 23m
Flight Duration| Day | Flights Observed | Frequency | Activity |
|---|---|---|---|
| Monday | 1 | 10% |
|
| Tuesday | 1 | 10% |
|
| Wednesday | 3 | 30% |
|
| Thursday | 2 | 20% |
|
| Friday | 1 | 10% |
|
| Saturday | 0 | 0% |
|
| Sunday | 2 | 20% |
|
Pattern Analysis
| Airline | Flight Numbers | Aircraft Type | Typical Time | Days Active | Last Seen | Status |
|---|---|---|---|---|---|---|
|
Frontier
FFT
/ F9
|
FFT2906 | A321 | 20:15 8:15 PM (Representative) |
M
T
W
T
F
S
S
|
Dec 24, 2025 | Active |
|
United
UAL
/ UA
|
- | B739 | - |
M
T
W
T
F
S
S
|
Oct 26, 2025 | Active |
| Departure Time | Operator | ICAO | IATA |
|---|---|---|---|
| 20:15 8:15 PM | Frontier |
FFT
|
F9
|
Time Information
Times are shown in the departure airport's local timezone (KIAD - America/New_York).