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Route · CMH → ATL · 2020–2025 BTS data

Columbus to Atlanta

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), CMH to ATL (Columbus to Atlanta) ranks #459 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

88.2%
On-time
+9.2 pts
vs US avg
74 min
Delay when late
17,370
Flights
#459 of 4927
Corpus placement

Cancelled

0.8%

Best Month

Oct 2024 94%

Worst Month

Jan 2025 77%

Distance

447 mi

Carriers

12

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 253 54 3 0 DL,WN,F9
Nov 2025 254 31 3 1 DL,F9,WN
Oct 2025 294 35 1 1 DL,WN,F9
Sep 2025 277 18 0 1 WN,DL,F9
Aug 2025 296 37 6 1 WN,F9,DL
Jul 2025 299 55 1 2 WN,DL,F9,NK
Jun 2025 309 53 9 2 DL,NK,WN,F9
May 2025 290 62 0 1 DL,NK,WN
Apr 2025 266 37 1 0 DL,NK,WN
Mar 2025 252 22 0 0 DL,WN
Feb 2025 228 40 0 0 DL,WN
Jan 2025 262 60 7 0 AA,DL,UA,WN,F9
Dec 2024 256 44 0 0 DL,WN
Nov 2024 250 23 0 0 WN,DL
Oct 2024 281 17 1 0 WN,DL
Sep 2024 268 32 0 0 WN,DL
Aug 2024 279 28 1 0 DL,WN
Jul 2024 278 62 15 1 DL,WN
Jun 2024 270 25 0 0 DL,WN
May 2024 273 48 2 0 DL,WN
Apr 2024 253 21 0 0 DL,WN
Mar 2024 237 29 1 0 DL,WN
Feb 2024 210 20 0 0 DL,WN
Jan 2024 222 41 1 1 DL,WN

CMH–ATL seasonal on-time pattern

Best: September (93.2%) · weakest: July (83.9%)

80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 85.1%

Strongest calendar month

September

93.2% on-time · ~249 flights/mo

Busiest calendar month

August

~261 flights/mo avg

Weakest calendar month

July

83.9% on-time · ~256 flights/mo

Cancellation Rate

0.8%

52 of 6,357 flights

Diversion Rate

0.2%

11 of 6,357 flights

Explore origin & destination

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

CMH - Columbus

Full on-time, delay-cause, and seasonal performance for Columbus, OH.

CMH on-time profile

ATL - Atlanta

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

ATL on-time profile

Compare the two airports

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

Compare CMH vs ATL

Origin-hub reliability standing

Among CMH's stronger departures

CMH → ATL posts a 88.2% on-time rate, landing in the ≥85% band with 13 of 33 BTS-tracked routes leaving Columbus. The same hub also shows 19 mid-band and 1 challenged departures · fleet-wide on-time rank #381 of 4927 (highest on-time = #1).

What the Data Says About CMH to ATL

Columbus to Atlanta (CMH to ATL) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 88.2% on-time rate across 17,370 flights, with delays that do happen averaging 73.9 minutes. The corridor runs roughly 447 miles and is served by 12 carriers. Over the most recent 24 months, 52 of 6,357 flights were cancelled (0.8%) and 11 diverted (0.2%).

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 94% on-time, while Jan 2025 came in at just 77% - a 17-point swing worth factoring into travel timing.

On the multi-year calendar, CMH–ATL peaks in September at 93.2% on-time while August carries the heaviest traffic (~261 flights per month) ; the softest month is July at 83.9%, a 9.3-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does CMH to ATL rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, CMH to ATL ranks #459 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 CMH to ATL? ▼
Flights from Columbus to Atlanta have a 88.2% on-time rate based on 17,370 flights. The average delay is 73.9 minutes. The best recent month was Oct 2024 with 94% on-time.
What is the cancellation rate for CMH to ATL? ▼
Over the last 24 months, 0.8% of flights on this route were cancelled (52 of 6,357 flights) and 0.2% were diverted.
How far is the flight from CMH to ATL? ▼
The flight distance from Columbus (CMH) to Atlanta (ATL) is approximately 447 miles. This route is served by 12 carriers.
When is the best time to fly from CMH to ATL? ▼
The best recent month for on-time performance was Oct 2024 (94% on-time). The worst was Jan 2025 (77% on-time). Consider booking during months with historically better performance.

Airports on this route

CMH Airport

Columbus
ATL Airport

Atlanta
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 CMH–ATL data

CMH–ATL runs 9.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare CMH and ATL airport profiles: delay causes and top routes differ even on the same corridor. CMH airport
  • If your dates flex, September (93.2% on-time) beats July (83.9%) on this corridor. Seasonal chart
  • 4 other routes post a similar 88.2% 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.