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Showing Delta only (incl. its regional partners)All airlines ×
1,094 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 94% depart on time. After 4 pm it’s 7 in 10.

Best time to leave 6–7 am 96% arrive on time from BWI
Best single flight DL 5813 BWI 06:17 → BOS 08:00 · 97% on time Avoid DL 5644 BWI 18:21 → BOS 20:00 · 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).

6
7
8
9
10
11
12
13
14
15
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17
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19
BWI
94
92
89
93
78
84
59
51
83
% 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 5813flown by Republic BWI 06:17 BOS 08:00 97%
DL 5703flown by Republic BWI 09:00 BOS 10:39 91%
DL 5668flown by Republic BWI 13:29 BOS 15:05 80%
DL 5644flown by Republic BWI 18:21 BOS 20:00 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 5813flown by Republic BWI 06:17 BOS 08:00 1h 43m 154 97% 2.6% 98 min
DL 5703flown by Republic BWI 09:00 BOS 10:39 1h 39m 219 91% 3.2% 95 min
DL 5668flown by Republic BWI 13:29 BOS 15:05 1h 36m 183 80% 3.8% 61 min
DL 5644flown by Republic BWI 18:21 BOS 20:00 1h 39m 303 67% 5.9% 89 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 BWI BOS 1h 39m 82% 3.7% 1,094 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