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4,977 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 87% depart on time. After 4 pm it’s 63%.

Best time to leave 8–9 am 90% arrive on time from ATL
Best single flight DL 987 ATL 07:10 → BOS 09:45 · 90% on time Avoid F9 3086 ATL 22:40 → BOS 01:27 · 58% 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).

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
ATL
80
88
88
88
83
81
82
68
73
63
60
62
61
62
64
61
59
67
% 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
Boston flights leaving ATL 6–7 pm: 2Close ×
DL 821 ATL 18:15 BOS 21:01 2h 46m 338 69% 1.5% 64 min
B6 1096 ATL 18:57 BOS 21:39 2h 42m 121 62% 3.3% 95 min

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Delta 3,693 76% 1.8% 62 min
JetBlue 844 71% 3.2% 89 min
Frontier 427 68% 2.6% 56 min
Spirit 13 – 0.0% 57 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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.
DL 987 ATL 07:10 BOS 09:45 90%
DL 855 ATL 10:00 BOS 12:44 87%
DL 862 ATL 11:10 BOS 13:47 84%
DL 865 ATL 22:50 BOS 01:31 80%
DL 350 ATL 12:40 BOS 15:20 77%
· · ·
B6 896 ATL 12:06 BOS 14:45 64%
DL 518 ATL 16:48 BOS 19:36 59%
F9 3086 ATL 22:40 BOS 01:27 58%
All 17 flights on this route →

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.
Delta ATL BOS 2h 41m 76% 1.8% 3,693 Flying now
JetBlue ATL BOS 2h 35m 71% 3.2% 844 Flying now
Frontier ATL BOS 2h 47m 68% 2.6% 427 Flying now
Spirit ATL BOS 2h 35m 62%few flights 0.0% 13 Not 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