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4,978 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 62%.

Best time to leave 6–7 am 93% arrive on time from PHL
Best single flight DL 5740 PHL 06:00 → BOS 07:30 · 92% on time Avoid B6 560 PHL 20:55 → BOS 22:26 · 56% 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
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PHL
87
70
69
60
71
% 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 PHL 5–6 pm: 3Close ×
AA 2960 PHL 17:30 BOS 19:05 1h 35m 36 57% 2.8% 82 min
AA 1776 PHL 17:30 BOS 18:57 1h 27m 225 64% 4.4% 94 min
DL 5706flown by Republic PHL 17:35 BOS 19:07 1h 32m 181 67% 6.6% 69 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 (incl. Republic) 1,234 81% 3.4% 76 min
American (incl. Republic) 2,809 74% 2.8% 83 min
JetBlue 892 74% 3.4% 73 min
Frontier 43 – 0.0% 47 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 5740flown by Republic PHL 06:00 BOS 07:30 92%
DL 5845flown by Republic PHL 09:30 BOS 10:59 90%
B6 1160 PHL 08:49 BOS 10:10 85%
AA 1416 PHL 10:30 BOS 12:03 84%
AA 1874 PHL 22:20 BOS 23:49 72%
· · ·
DL 5706flown by Republic PHL 17:35 BOS 19:07 67%
AA 1776 PHL 17:30 BOS 18:57 64%
B6 560 PHL 20:55 BOS 22:26 56%
All 18 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 PHL BOS 1h 32m 81% 3.4% 1,234 Flying now
American PHL BOS 1h 27m 74% 2.8% 2,809 Flying now
JetBlue PHL BOS 1h 21m 74% 3.4% 892 Flying now
Frontier PHL BOS 1h 29m 91% 0.0% 43 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