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Route · ATL → BUF · 2020–2025 BTS data

Atlanta to Buffalo

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ATL to BUF (Atlanta to Buffalo) ranks #1810 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

82.7%
On-time
+3.7 pts
vs US avg
64 min
Delay when late
6,977
Flights
#1810 of 4927
Corpus placement

Cancelled

1.8%

Best Month

Nov 2024 93%

Worst Month

Jun 2025 62%

Distance

712 mi

Carriers

8

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 107 32 7 0 DL,F9
Nov 2025 108 17 3 0 DL,F9
Oct 2025 142 25 0 0 WN,DL,F9
Sep 2025 124 10 0 0 DL,F9
Aug 2025 136 25 3 0 F9,DL
Jul 2025 134 39 2 0 DL,F9
Jun 2025 125 47 6 0 DL,F9
May 2025 107 28 0 0 DL,F9
Apr 2025 102 14 1 0 DL,F9
Mar 2025 105 24 0 0 DL,F9
Feb 2025 87 25 0 0 DL,F9
Jan 2025 91 18 5 0 DL,F9
Dec 2024 101 29 0 0 DL,F9
Nov 2024 112 8 0 0 DL,F9
Oct 2024 136 20 0 0 DL,F9
Sep 2024 134 20 2 0 DL,F9
Aug 2024 139 32 0 0 DL,F9
Jul 2024 134 42 8 0 DL,F9
Jun 2024 115 25 5 0 DL,F9
May 2024 110 27 3 0 DL,F9
Apr 2024 102 17 0 0 DL,F9
Mar 2024 91 17 0 0 DL
Feb 2024 80 6 0 0 DL
Jan 2024 83 21 3 0 DL

ATL–BUF seasonal on-time pattern

Best: November (89.4%) · weakest: July (73.2%)

70%75%80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 81%

Strongest calendar month

November

89.4% on-time · ~96 flights/mo

Busiest calendar month

October

~116 flights/mo avg

Weakest calendar month

July

73.2% on-time · ~108 flights/mo

Cancellation Rate

1.8%

48 of 2,705 flights

Diversion Rate

0.0%

0 of 2,705 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

BUF - Buffalo

Full on-time, delay-cause, and seasonal performance for Buffalo, NY.

BUF on-time profile

Compare the two airports

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

Compare ATL vs BUF

Origin-hub reliability standing

Mid-pack among ATL departures

From ATL, this corridor sits with 75 other 75–85% on-time routes out of 144 tracked departures, not the hub's reliability leaders (67 at ≥85%) and not the softest ( 2 below 75%). Destination: Buffalo · fleet on-time rank #2053 of 4927.

What the Data Says About ATL to BUF

Bureau of Transportation Statistics records show Atlanta to Buffalo (ATL to BUF) running a 82.7% on-time rate over 6,977 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 64.0 minutes. The 712-mile corridor is served by 8 carriers, and over the last 24 months 1.8% of 2,705 flights were cancelled, 0.0% diverted.

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 93% on-time, while Jun 2025 came in at just 62% - a 31-point swing worth factoring into travel timing.

On the multi-year calendar, ATL–BUF peaks in November at 89.4% on-time while October carries the heaviest traffic (~116 flights per month) ; the softest month is July at 73.2%, a 16.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does ATL to BUF rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, ATL to BUF ranks #1810 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 BUF? ▼
Flights from Atlanta to Buffalo have a 82.7% on-time rate based on 6,977 flights. The average delay is 64.0 minutes. The best recent month was Nov 2024 with 93% on-time.
What is the cancellation rate for ATL to BUF? ▼
Over the last 24 months, 1.8% of flights on this route were cancelled (48 of 2,705 flights) and 0.0% were diverted.
How far is the flight from ATL to BUF? ▼
The flight distance from Atlanta (ATL) to Buffalo (BUF) is approximately 712 miles. This route is served by 8 carriers.
When is the best time to fly from ATL to BUF? ▼
The best recent month for on-time performance was Nov 2024 (93% on-time). The worst was Jun 2025 (62% on-time). Consider booking during months with historically better performance.

Airports on this route

ATL Airport

Atlanta
BUF Airport

Buffalo
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–BUF data

ATL–BUF runs 3.7 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 BUF airport profiles: delay causes and top routes differ even on the same corridor. ATL airport
  • If your dates flex, November (89.4% on-time) beats July (73.2%) on this corridor. Seasonal chart
  • 4 other routes post a similar 82.7% 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.