Route
BWI → MEM
Baltimore/Washington International Thurgood Marshall Airport Frederick W. Smith International Airport
787 miles
Return route MEM → BWI →
How punctual is this route?
- On-time arrivals
- 80.5%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 61 min
- Flights arriving 15+ minutes late
- Flights tracked
- 276
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 43%
- Late-arriving aircraft 28%
- Air traffic control & airport 16%
- Extreme weather 13%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 95.2% | 21 |
| October 2025 | 96.2% | 26 |
| November 2025 | 92.9% | 28 |
| December 2025 | 55.2% | 30 |
| January 2026 | 66.7% | 10 |
| February 2026 | 87.5% | 18 |
| March 2026 | 82.8% | 29 |
| April 2026 | 86.4% | 22 |
| May 2026 | 87.0% | 23 |
| June 2026 | 83.3% | 24 |
| July 2026 | 70.4% | 27 |
| August 2026 | 55.6% | 18 |
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 | 276 | 80.5% | 1.4% | 61 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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