Route · BWI → BHM · 2020–2025 BTS data
Baltimore to Birmingham
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), BWI to BHM (Baltimore to Birmingham) ranks #4670 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 77.6%
- On-time
- -1.4 pts
- vs US avg
- 60 min
- Delay when late
- 784
- Flights
- #4670 of 4927
- Corpus placement
Cancelled
2.9%
Best Month
N/A
Worst Month
N/A
Distance
682 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 5 | 0 | 0 | WN |
| Nov 2025 | 31 | 2 | 0 | 0 | WN |
| Jul 2025 | 35 | 8 | 2 | 0 | WN |
| Jun 2025 | 34 | 9 | 0 | 1 | WN |
| Dec 2024 | 30 | 5 | 0 | 0 | WN |
| Jul 2024 | 31 | 20 | 0 | 0 | WN |
| Dec 2023 | 31 | 7 | 0 | 0 | WN |
| Nov 2023 | 30 | 3 | 0 | 0 | WN |
| Oct 2023 | 31 | 11 | 0 | 0 | WN |
| Sep 2023 | 30 | 6 | 0 | 0 | WN |
| Aug 2023 | 31 | 4 | 0 | 0 | WN |
| Jul 2023 | 31 | 14 | 0 | 0 | WN |
| Jun 2023 | 30 | 12 | 0 | 0 | WN |
| May 2023 | 31 | 2 | 0 | 0 | WN |
| Oct 2022 | 31 | 12 | 0 | 0 | WN |
| Sep 2022 | 30 | 13 | 0 | 0 | WN |
| Aug 2022 | 31 | 7 | 0 | 0 | WN |
| Jul 2022 | 31 | 7 | 0 | 0 | WN |
| Jun 2022 | 30 | 2 | 0 | 0 | WN |
| May 2022 | 31 | 2 | 0 | 0 | WN |
| Jan 2022 | 31 | 10 | 0 | 0 | WN |
| Dec 2021 | 31 | 11 | 0 | 0 | WN |
| Apr 2020 | 41 | 0 | 18 | 0 | WN |
| Mar 2020 | 30 | 1 | 2 | 0 | WN |
BWI–BHM seasonal on-time pattern
Best: April (100.0%) · weakest: July (61.7%)
Strongest calendar month
April
100.0% on-time · ~41 flights/mo
Busiest calendar month
April
~41 flights/mo avg
Weakest calendar month
July
61.7% on-time · ~32 flights/mo
Cancellation Rate
2.9%
22 of 754 flights
Diversion Rate
0.1%
1 of 754 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
BWI - Baltimore
Full on-time, delay-cause, and seasonal performance for Baltimore, MD.
BWI on-time profileBHM - Birmingham
Full on-time, delay-cause, and seasonal performance for Birmingham, AL.
BHM on-time profileCompare the two airports
See BWI and BHM side by side on delays, cancellations, and reliability.
Compare BWI vs BHMOrigin-hub reliability standing
Mid-pack among BWI departures
From BWI, this corridor sits with 53 other 75–85% on-time routes out of 64 tracked departures, not the hub's reliability leaders (0 at ≥85%) and not the softest ( 11 below 75%). Destination: Birmingham · fleet on-time rank #3934 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to BWI–BHM.
Routes with a similar on-time rate
What the Data Says About BWI to BHM
The Baltimore to Birmingham corridor (BWI to BHM) posts a 77.6% on-time rate on the lower edge of the average band, based on 784 tracked flights. Late flights run 60.2 minutes behind on average. 1 carrier cover the 682-mile route; over the last 24 months, 22 of 754 flights were cancelled (2.9%) and 0.1% diverted.
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
On the multi-year calendar, BWI–BHM peaks in April at 100.0% on-time ; the softest month is July at 61.7%, a 38.3-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does BWI to BHM rank among US routes by traffic? ▼
How often are flights delayed from BWI to BHM? ▼
What is the cancellation rate for BWI to BHM? ▼
How far is the flight from BWI to BHM? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using BWI–BHM data
BWI–BHM is mid-pack at 77.6% on-time; month and carrier mix move more than the corridor headline.
- Compare BWI and BHM airport profiles: delay causes and top routes differ even on the same corridor. BWI airport
- If your dates flex, April (100.0% on-time) beats July (61.7%) on this corridor. Seasonal chart
- 4 other routes post a similar 77.6% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.