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Showing Delta only (incl. its regional partners)All airlines ×
1,153 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 92% depart on time. After 4 pm it’s 2 in 3.

Best time to leave 8–9 am 92% arrive on time from BOS
Best single flight DL 5678 BOS 08:15 → PIT 10:19 · 92% on time Avoid DL 5679 BOS 20:10 → PIT 22:13 · 67% 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).

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BOS
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% 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.

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 5678flown by Republic BOS 08:15 PIT 10:19 92%
DL 5731flown by Republic BOS 11:45 PIT 13:40 91%
DL 5680flown by Republic BOS 16:11 PIT 18:23 81%
DL 5679flown by Republic BOS 20:10 PIT 22:13 67%

All 4 Delta 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.
DL 5678flown by Republic BOS 08:15 PIT 10:19 2h 03m 197 92% 2.0% 91 min
DL 5731flown by Republic BOS 11:45 PIT 13:40 1h 55m 163 91% 0.6% 61 min
DL 5680flown by Republic BOS 16:11 PIT 18:23 2h 08m 206 81% 3.4% 58 min
DL 5679flown by Republic BOS 20:10 PIT 22:13 2h 03m 198 67% 5.6% 81 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.
Delta BOS PIT 2h 01m 81% 2.8% 1,153 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