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Route · ATL → BHM · 2020–2025 BTS data

Atlanta to Birmingham

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ATL to BHM (Atlanta to Birmingham) ranks #517 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

86.4%
On-time
+7.4 pts
vs US avg
64 min
Delay when late
16,520
Flights
#517 of 4927
Corpus placement

Cancelled

1.2%

Best Month

Nov 2024 93%

Worst Month

Jul 2024 65%

Distance

134 mi

Carriers

3

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 276 54 8 1 DL
Nov 2025 262 31 9 0 DL
Oct 2025 285 30 0 0 DL
Sep 2025 260 21 0 0 DL
Aug 2025 254 39 3 1 DL
Jul 2025 285 74 1 0 DL
Jun 2025 265 82 9 2 DL
May 2025 260 63 0 1 DL
Apr 2025 251 45 4 0 DL
Mar 2025 255 45 2 2 DL
Feb 2025 205 35 0 0 DL
Jan 2025 221 38 9 0 DL
Dec 2024 258 41 0 0 9E,DL
Nov 2024 229 17 0 0 DL
Oct 2024 253 19 0 0 DL
Sep 2024 246 31 0 0 9E,DL
Aug 2024 250 45 0 0 DL,9E
Jul 2024 253 89 23 0 9E,DL
Jun 2024 255 40 0 1 9E,DL
May 2024 261 44 2 0 9E,DL
Apr 2024 256 35 0 0 9E,DL
Mar 2024 256 39 0 0 9E,DL
Feb 2024 221 23 0 0 9E,DL
Jan 2024 225 32 1 1 9E,DL

ATL–BHM seasonal on-time pattern

Best: October (93.1%) · weakest: July (76.3%)

75%80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 87.2%

Strongest calendar month

October

93.1% on-time · ~243 flights/mo

Busiest calendar month

March

~252 flights/mo avg

Weakest calendar month

July

76.3% on-time · ~237 flights/mo

Cancellation Rate

1.2%

71 of 6,042 flights

Diversion Rate

0.1%

9 of 6,042 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

ATL - Atlanta

Full on-time, delay-cause, and seasonal performance for Atlanta, GA.

ATL on-time profile

BHM - Birmingham

Full on-time, delay-cause, and seasonal performance for Birmingham, AL.

BHM on-time profile

Compare the two airports

See ATL and BHM side by side on delays, cancellations, and reliability.

Compare ATL vs BHM

Origin-hub reliability standing

Among ATL's stronger departures

ATL → BHM posts a 86.4% on-time rate, landing in the ≥85% band with 67 of 144 BTS-tracked routes leaving Atlanta. The same hub also shows 75 mid-band and 2 challenged departures · fleet-wide on-time rank #782 of 4927 (highest on-time = #1).

What the Data Says About ATL to BHM

Atlanta to Birmingham (ATL to BHM) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 86.4% on-time rate across 16,520 flights, with delays that do happen averaging 64.4 minutes. The corridor runs roughly 134 miles and is served by 3 carriers. Over the most recent 24 months, 71 of 6,042 flights were cancelled (1.2%) and 9 diverted (0.1%).

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 93% on-time, while Jul 2024 came in at just 65% - a 28-point swing worth factoring into travel timing.

On the multi-year calendar, ATL–BHM peaks in October at 93.1% on-time while March carries the heaviest traffic (~252 flights per month) ; the softest month is July at 76.3%, a 16.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does ATL to BHM rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, ATL to BHM ranks #517 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from ATL to BHM? ▼
Flights from Atlanta to Birmingham have a 86.4% on-time rate based on 16,520 flights. The average delay is 64.4 minutes. The best recent month was Nov 2024 with 93% on-time.
What is the cancellation rate for ATL to BHM? ▼
Over the last 24 months, 1.2% of flights on this route were cancelled (71 of 6,042 flights) and 0.1% were diverted.
How far is the flight from ATL to BHM? ▼
The flight distance from Atlanta (ATL) to Birmingham (BHM) is approximately 134 miles. This route is served by 3 carriers.
When is the best time to fly from ATL to BHM? ▼
The best recent month for on-time performance was Nov 2024 (93% on-time). The worst was Jul 2024 (65% on-time). Consider booking during months with historically better performance.

Airports on this route

ATL Airport

Atlanta
BHM Airport

Birmingham
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 ATL–BHM data

ATL–BHM runs 7.4 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare ATL and BHM airport profiles: delay causes and top routes differ even on the same corridor. ATL airport
  • If your dates flex, October (93.1% on-time) beats July (76.3%) on this corridor. Seasonal chart
  • 4 other routes post a similar 86.4% 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.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

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.