BWI to MEM flight delays
Baltimore, MD (BWI) Memphis, TN (MEM) · 787 miles
284 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
82.14%
Arrived on time
Within 15 minutes of schedule
1.41%
Cancelled
Share of scheduled flights
58 min
When late, late by
Average across delayed arrivals
12 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In October it ran 41 points more punctual than in December — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The route has been getting worse. The later months run 8.9 points less punctual than the earlier ones. A drift of that size is rarely weather; it is more often an airline adding frequencies faster than the airports can absorb them.
This route does better than its own airport. Departures from BWI overall run 9 points less punctual than this particular one — so whatever congestion BWI has, this route is largely escaping it.
Only Southwest Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Which airline should you fly on this route?
Over January 2025 – August 2026, Southwest Airlines arrived on time most often on BWI to MEM. Flights ran closest to schedule in October and worst in December.
Every airline on BWI to MEM
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 284 | 82.14% | 1.41% | 58 min | B |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
MEM to BWI Memphis back to Baltimore 80.29% on time CCommon questions
Are flights from Baltimore to Memphis usually delayed?
82.14% of flights on the BWI to MEM route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Baltimore to Memphis?
Only Southwest Airlines appears in the published record on this route, with 284 flights and 82.14% arriving on time.
How often are BWI to MEM flights cancelled?
1.41% of scheduled flights did not operate — about 14 in every thousand. That is in the normal range.
What is the best month to fly Baltimore to Memphis?
October, when 96.2% of flights arrived on time. The worst was December at 55.2%.
When BWI to MEM flights are late, how late are they?
About 58 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on BWI to MEM during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →