Baltimore/Washington International Thurgood Marshall ⇄ Greenville Spartanburg International BWI–GSP
Airlines flew 1,423 flights between Baltimore/Washington International Thurgood Marshall BWI in Baltimore, MD and Greenville Spartanburg International GSP in Greer, SC in the twelve months to July 2026, both directions together: 137,569 passengers in 202,487 seats, 68% of them filled, and 94,684 pounds of freight. 426 miles, about 69 minutes in the air, on 4 airlines: Southwest Airlines Co. (1,420), Global Crossing Airlines, Inc. (1), Mesa Airlines Inc. (1), Republic Airline (1). Planning to fly it yourself? The weather and winds along this route right now.
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 85 |
| 2/25 | 92 |
| 3/25 | 119 |
| 4/25 | 120 |
| 5/25 | 124 |
| 6/25 | 121 |
| 7/25 | 122 |
| 8/25 | 125 |
| 9/25 | 120 |
| 10/25 | 117 |
| 11/25 | 112 |
| 12/25 | 120 |
| 1/26 | 112 |
| 2/26 | 109 |
| 3/26 | 124 |
| 4/26 | 120 |
| 5/26 | 124 |
| 6/26 | 119 |
| 7/26 | 121 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 6,429 |
| 2/25 | 6,829 |
| 3/25 | 11,835 |
| 4/25 | 12,707 |
| 5/25 | 13,880 |
| 6/25 | 12,541 |
| 7/25 | 11,984 |
| 8/25 | 12,372 |
| 9/25 | 12,355 |
| 10/25 | 13,452 |
| 11/25 | 11,453 |
| 12/25 | 11,783 |
| 1/26 | 6,906 |
| 2/26 | 8,246 |
| 3/26 | 11,278 |
| 4/26 | 11,274 |
| 5/26 | 12,639 |
| 6/26 | 13,044 |
| 7/26 | 12,767 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Southwest Airlines Co. WN | 1,420 | 137,504 | 68% | scheduled passenger service |
| Global Crossing Airlines, Inc. GCA | 1 | 0 | 0% | charter passenger service |
| Mesa Airlines Inc. YV | 1 | 0 | 0% | scheduled passenger service |
| Republic Airline YX | 1 | 65 | 100% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 737-700/700LR/Max 7 | 1,309 | 140 | 126,822 |
| Boeing 737-800 | 56 | 175 | 5,159 |
| Boeing B737 Max 800 | 55 | 175 | 5,523 |
| Embraer ERJ-175 | 2 | 70 | 65 |
| Airbus Industrie A320-100/200 | 1 | 150 | 0 |
BWI → GSP this direction alone · flown January 2025 to July 2026
713 flights of 720 scheduled, 67,063 passengers in 101,151 seats, 65,256 pounds of freight. Southwest Airlines Co. 713.
GSP → BWI this direction alone · flown January 2025 to July 2026
710 flights of 719 scheduled, 70,506 passengers in 101,336 seats, 29,428 pounds of freight. Southwest Airlines Co. 707; Global Crossing Airlines, Inc. 1; Mesa Airlines Inc. 1; Republic Airline 1.
Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Baltimore/Washington International Thurgood Marshall BWI and Greenville Spartanburg International GSP; all routes.