Best Time to Fly MEM to BWI: On-Time Stats by Hour & Airline
Memphis International → Baltimore/Washington International Thurgood Marshall
Data through July 2026 · Last updated October 18, 2026
279 flights were scheduled from Memphis (MEM) to Baltimore (BWI) in the last 12 months, and 79.7% of those that flew arrived on time, 2.1 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Saturday was the most reliable day (91% on time) and July the worst month (60%).
The cancellation rate was 0.7% (US average 1.8%).
MEM to BWI 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 | 79.7% | 53 min | 0.7% | 279 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MEM to BWI
On-time arrival % by scheduled departure hour (local time), 529 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 3 | |
| 6am–7am | Limited data | 13 | |
| 7am–8am | Limited data | 1 | |
| 9am–10am | Limited data | 5 | |
| 10am–11am | Limited data | 26 | |
| 11am–12pm | 81.1% | 0.0% | 53 |
| 12pm–1pm | 77.0% | 0.7% | 140 |
| 1pm–2pm | 78.8% | 0.0% | 33 |
| 2pm–3pm | 72.7% | 0.0% | 34 |
| 3pm–4pm | Limited data | 24 | |
| 4pm–5pm | 66.7% | 0.9% | 116 |
| 5pm–6pm | 82.6% | 2.1% | 48 |
| 6pm–7pm | 81.8% | 0.0% | 33 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MEM to BWI
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 | 15 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 26 | ||
| Summer peak (Jun 15 - Aug 15) | 65.4% | -15.3 pts | 0.9% | 109 |
| All other days | 80.8% | — | 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).