The Greer to Baltimore route connects Greenville Spartanburg International Airport (GSP) in US with Baltimore/Washington International Thurgood Marshall Airport (BWI) in US. This short-haul flight covers approximately 426 miles (686 km) with a typical flight time of 58m. This route is operated by Southwest. AirportRoutes has tracked 11 unique flight numbers on this route.
Compare flight prices across hundreds of booking sites
Search GSP → BWI flightsOpens a live price search — just pick your dates
Greenville Spartanburg International Airport
KGSPGSPBaltimore/Washington International Thurgood Marshall Airport
KBWIBWI1
Operator11
Tracked Flights426
Miles58m
Flight Duration
| Airline | ICAO | IATA |
|---|---|---|
| Southwest |
SWA
|
WN
|
| Day | Flights Observed | Frequency | Activity |
|---|---|---|---|
| Monday | 10 | 11% |
|
| Tuesday | 13 | 14% |
|
| Wednesday | 15 | 16% |
|
| Thursday | 12 | 13% |
|
| Friday | 10 | 11% |
|
| Saturday | 18 | 19% |
|
| Sunday | 15 | 16% |
|
Pattern Analysis
| Airline | Flight Numbers | Aircraft Type | Typical Time | Days Active | Last Seen | Status |
|---|---|---|---|---|---|---|
|
Southwest
SWA
/ WN
|
|
B737 | 13:45 1:45 PM (Representative) |
M
T
W
T
F
S
S
|
May 10, 2026 | Active |
| Departure Time | Operator | ICAO | IATA |
|---|---|---|---|
| 13:45 1:45 PM | Southwest |
SWA
|
WN
|
Time Information
Times are shown in the departure airport's local timezone (KGSP - America/New_York).