Best Time to Fly BWI to MEM: On-Time Stats by Hour & Airline
Baltimore/Washington International Thurgood Marshall → Memphis International
Data through July 2026 · Last updated October 18, 2026
280 flights were scheduled from Baltimore (BWI) to Memphis (MEM) in the last 12 months, and 81.5% of those that flew arrived on time, 3.9 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
October has been the best month (95% on time) and Monday the weakest day of the week (76%).
1.4% of flights were cancelled, versus 1.8% nationally.
BWI to MEM on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlines | 81.5% | 49 min | 1.4% | 280 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BWI to MEM
On-time arrival % by scheduled departure hour (local time), 530 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 97.0% | 0.0% | 33 |
| 9am–10am | 85.0% | 1.6% | 61 |
| 10am–11am | Limited data | 19 | |
| 12pm–1pm | 90.9% | 0.0% | 33 |
| 1pm–2pm | 84.3% | 0.0% | 140 |
| 2pm–3pm | 84.0% | 0.0% | 50 |
| 3pm–4pm | 77.0% | 3.2% | 63 |
| 4pm–5pm | 71.4% | 1.1% | 92 |
| 5pm–6pm | Limited data | 25 | |
| 6pm–7pm | Limited data | 4 | |
| 7pm–8pm | Limited data | 1 | |
| 9pm–10pm | Limited data | 9 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BWI to MEM
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 16 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 26 | ||
| Summer peak (Jun 15 - Aug 15) | 74.3% | -9.5 pts | 0.0% | 109 |
| All other days | 83.8% | — | 0.8% | 379 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).