Route
CHS → BWI
Charleston International Airport Baltimore/Washington International Thurgood Marshall Airport
How punctual is this route?
- On-time arrivals
- 81.4%
- Less than 15 minutes late
- Cancelled
- 1.5%
- Of scheduled flights
- Average delay when late
- 56 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,229
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 52%
- Airline (crew, maintenance, cleaning) 24%
- Air traffic control & airport 23%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 89.9% | 90 |
| October 2025 | 79.7% | 118 |
| November 2025 | 85.1% | 103 |
| December 2025 | 82.0% | 102 |
| January 2026 | 90.1% | 96 |
| February 2026 | 79.2% | 81 |
| March 2026 | 81.4% | 105 |
| April 2026 | 81.7% | 109 |
| May 2026 | 81.4% | 113 |
| June 2026 | 78.5% | 107 |
| July 2026 | 77.7% | 110 |
| August 2026 | 70.7% | 95 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Southwest Airlines | 1,229 | 81.4% | 1.5% | 56 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN1843
17% late · 59 flights
-
WN1073
11% late · 58 flights
-
WN3652
5% late · 58 flights
-
WN4460
15% late · 58 flights
-
WN1144
25% late · 52 flights
-
WN2708
40% late · 50 flights
-
WN1929
14% late · 49 flights
-
WN3463
13% late · 39 flights
-
WN1587
13% late · 38 flights
-
WN470
65% late · 36 flights
-
WN1844
0% late · 33 flights
-
WN1956
29% late · 31 flights
-
WN747
7% late · 28 flights
-
WN1090
4% late · 27 flights
-
WN1143
11% late · 27 flights
-
WN1600
8% late · 27 flights
-
WN3004
22% late · 27 flights
-
WN1989
19% late · 26 flights
-
WN3027
9% late · 24 flights
-
WN1712
17% late · 23 flights
-
WN1774
0% late · 23 flights
-
WN1849
29% late · 23 flights
-
WN1584
23% late · 22 flights
-
WN1806
0% late · 21 flights
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