The San Antonio to San Juan route connects San Antonio International Airport (SAT) in US with Luis Munoz Marin International Airport (SJU) in PR. This medium-haul flight covers approximately 2181 miles (3510 km) with a typical flight time of 4h 13m. This route is operated by Spirit. AirportRoutes has tracked 2 unique flight numbers on this route.
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San Antonio International Airport
KSATSATLuis Munoz Marin International Airport
TJSJSJU1
Operator2
Tracked Flights2181
Miles4h 13m
Flight Duration| Airline | ICAO | IATA |
|---|---|---|
| Spirit |
NKS
|
NK
|
| Day | Flights Observed | Frequency | Activity |
|---|---|---|---|
| Monday | 2 | 25% |
|
| Tuesday | 0 | 0% |
|
| Wednesday | 4 | 50% |
|
| Thursday | 0 | 0% |
|
| Friday | 2 | 25% |
|
| Saturday | 0 | 0% |
|
| Sunday | 0 | 0% |
|
Pattern Analysis
| Airline | Flight Numbers | Aircraft Type | Typical Time | Days Active | Last Seen | Status |
|---|---|---|---|---|---|---|
|
Spirit
NKS
/ NK
|
A21N | 10:42 10:42 AM (Representative) |
M
T
W
T
F
S
S
|
Jan 7, 2026 | Active |
| Departure Time | Operator | ICAO | IATA |
|---|---|---|---|
| 10:42 10:42 AM | Spirit |
NKS
|
NK
|
Time Information
Times are shown in the departure airport's local timezone (KSAT - America/Chicago).