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2,546 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 88% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 10–11 am 89% arrive on time from BUF
Best single flight AA 1195 BUF 06:00 → ORD 07:03 · 88% on time Avoid UA 4381 BUF 13:54 → ORD 14:55 · 73% on time

Time of day × airport

Share of this route’s flights leaving within 15 minutes, by airport and scheduled departure hour, over Aug 2025 – Jul 2026. Blank: no flights then (or fewer than 40 in the year).

6
7
8
9
10
11
12
13
14
15
16
17
18
BUF
86
90
85
87
84
75
69
69
65
70
70
% of this route’s flights leaving within 15 min (small number: flights in the Jun 6 – Jul 31, 2026 schedule): 85+75–8465–7455–64under 55

Pick an hour to see this route’s flights leaving then.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
American (incl. Envoy, SkyWest, Republic) 1,230 78% 3.3% 90 min
United (incl. GoJet, SkyWest, Republic) 1,316 72% 3.0% 121 min

Flights, best and worst

Flights in the Jun 6 – Jul 31, 2026 schedule that ran 150+ times in the year. Times are local. Pick a flight for its history.
AA 1195 BUF 06:00 ORD 07:03 88%
UA 4381flown by GoJet BUF 13:54 ORD 14:55 73%

All 10 flights in the current schedule

Every flight that flew in the Jun 6 – Jul 31, 2026 schedule, with its record over Aug 2025 – Jul 2026. Times are local. Click a column to sort.
AA 1195 BUF 06:00 ORD 07:03 2h 03m 162 88% 4.3% 175 min
UA 5820flown by SkyWest BUF 07:00 ORD 08:05 2h 05m 29 89% 3.4% 56 min
UA 543 BUF 07:00 ORD 07:59 1h 59m 141 85% 2.8% 67 min
AA 2112 BUF 08:08 ORD 09:10 2h 02m 76 84% 1.3% 169 min
AA 4413flown by Republic BUF 10:07 ORD 11:09 2h 02m 71 94% 0.0% 97 min
UA 4690flown by SkyWest BUF 10:50 ORD 11:53 2h 03m 35 83% 0.0% 241 min
UA 705 BUF 10:57 ORD 11:57 2h 00m 37 89% 0.0% 151 min
UA 4381flown by GoJet BUF 13:54 ORD 14:55 2h 01m 296 73% 2.7% 134 min
AA 4913flown by SkyWest BUF 16:48 ORD 18:03 2h 15m 69 58% 10.1% 94 min
UA 2747 BUF 18:04 ORD 19:03 1h 59m 69 63% 1.4% 116 min

Nonstops by airline and airport

Arriving within 15 minutes, Aug 2025 – Jul 2026. Pick a row to see that airline’s flights on that airport pair.
American BUF ORD 2h 07m 78% 3.3% 1,230 Flying now
United BUF ORD 2h 03m 72% 3.0% 1,316 Flying now
Flying on a particular day? Pick a date above and the same ranking uses our forecast odds for each flight that day: Tomorrow.

About this data: US DOT on-time records, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. Schedules (which flights and connections exist, and their times) are as of Jun 6 – Jul 31, 2026; seasonal flights outside that window aren’t ranked. Rebuilt monthly. JSON