Route · DTW → BHM · 2020–2025 BTS data
Detroit to Birmingham
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DTW to BHM (Detroit to Birmingham) ranks #4389 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 79.1%
- On-time
- +0.1 pts
- vs US avg
- 67 min
- Delay when late
- 1,141
- Flights
- #4389 of 4927
- Corpus placement
Cancelled
0.4%
Best Month
Jul 2021 89%
Worst Month
Jul 2024 59%
Distance
625 mi
Carriers
7
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Jul 2025 | 64 | 22 | 1 | 0 | OO,NK |
| Jun 2025 | 32 | 5 | 0 | 0 | NK,OO |
| Apr 2025 | 43 | 9 | 0 | 0 | OO |
| Dec 2024 | 46 | 14 | 0 | 0 | 9E,OO |
| Nov 2024 | 57 | 12 | 0 | 0 | OO |
| Oct 2024 | 56 | 10 | 0 | 0 | OO,DL |
| Sep 2024 | 51 | 16 | 0 | 0 | OO |
| Aug 2024 | 54 | 15 | 0 | 0 | OO |
| Jul 2024 | 54 | 22 | 0 | 0 | 9E,OO |
| Jun 2024 | 49 | 13 | 0 | 0 | 9E,OO |
| Apr 2024 | 30 | 3 | 0 | 0 | 9E,OO |
| Dec 2023 | 40 | 2 | 0 | 0 | OO,9E |
| Nov 2023 | 44 | 5 | 0 | 0 | 9E,OO |
| Oct 2023 | 47 | 3 | 0 | 0 | 9E,OO |
| Sep 2023 | 46 | 12 | 0 | 0 | 9E,OO |
| Aug 2023 | 58 | 14 | 1 | 1 | OO |
| Jul 2023 | 54 | 17 | 0 | 0 | 9E,OO |
| Jun 2023 | 52 | 7 | 0 | 0 | 9E |
| Mar 2023 | 30 | 6 | 0 | 0 | 9E |
| Oct 2021 | 31 | 1 | 0 | 1 | 9E |
| Jul 2021 | 55 | 6 | 0 | 0 | 9E |
| Jun 2021 | 56 | 14 | 0 | 0 | 9E |
| May 2021 | 47 | 3 | 0 | 0 | 9E |
| Mar 2020 | 45 | 7 | 3 | 0 | 9E,OO |
DTW–BHM seasonal on-time pattern
Best: May (93.6%) · weakest: July (70.5%)
Strongest calendar month
May
93.6% on-time · ~47 flights/mo
Busiest calendar month
July
~57 flights/mo avg
Weakest calendar month
July
70.5% on-time · ~57 flights/mo
Cancellation Rate
0.4%
5 of 1,141 flights
Diversion Rate
0.2%
2 of 1,141 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
DTW - Detroit
Full on-time, delay-cause, and seasonal performance for Detroit, MI.
DTW on-time profileBHM - Birmingham
Full on-time, delay-cause, and seasonal performance for Birmingham, AL.
BHM on-time profileCompare the two airports
See DTW and BHM side by side on delays, cancellations, and reliability.
Compare DTW vs BHMOrigin-hub reliability standing
Mid-pack among DTW departures
From DTW, this corridor sits with 60 other 75–85% on-time routes out of 94 tracked departures, not the hub's reliability leaders (34 at ≥85%) and not the softest ( 0 below 75%). Destination: Birmingham · fleet on-time rank #3484 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to DTW–BHM.
Routes with a similar on-time rate
What the Data Says About DTW to BHM
1,141 tracked flights put the DTW to BHM pairing (Detroit to Birmingham) at a 79.1% on-time rate, squarely in line with the wider network. Delays that do occur run 66.6 minutes on average. Across the 625-mile route and its 7 carriers, the trailing 24 months show 0.4% cancelled and 0.2% diverted (1,141 flights sampled).
The monthly split is wide on this route: Jul 2021 posted the strongest performance at 89% on-time, while Jul 2024 came in at just 59% - a 30-point swing worth factoring into travel timing.
On the multi-year calendar, DTW–BHM peaks in May at 93.6% on-time while July carries the heaviest traffic (~57 flights per month) ; the softest month is July at 70.5%, a 23.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does DTW to BHM rank among US routes by traffic? ▼
How often are flights delayed from DTW to BHM? ▼
What is the cancellation rate for DTW to BHM? ▼
How far is the flight from DTW to BHM? ▼
When is the best time to fly from DTW 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 DTW–BHM data
DTW–BHM is mid-pack at 79.1% on-time; month and carrier mix move more than the corridor headline.
- Compare DTW and BHM airport profiles: delay causes and top routes differ even on the same corridor. DTW airport
- If your dates flex, May (93.6% on-time) beats July (70.5%) on this corridor. Seasonal chart
- 4 other routes post a similar 79.1% 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.