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Showing Delta only (incl. its regional partners)All airlines ×
3,127 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 64%.

Best time to leave 7–8 am 93% arrive on time from DCA
Best single flight DL 5710 DCA 06:00 → BOS 07:40 · 93% on time Avoid DL 5600 DCA 15:15 → BOS 17:02 · 61% 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
19
20
21
22
DCA
91
93
86
90
87
85
71
76
74
55
60
61
74
% 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 5710flown by Republic DCA 06:00 BOS 07:40 93%
DL 5698flown by Republic DCA 06:59 BOS 08:41 92%
DL 5687flown by Republic DCA 08:29 BOS 10:14 88%
DL 5693flown by Republic DCA 11:47 BOS 13:28 84%
DL 5776flown by Republic DCA 17:45 BOS 19:42 64%
· · ·
DL 5600flown by Republic DCA 15:15 BOS 17:02 61%

All 13 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 5710flown by Republic DCA 06:00 BOS 07:40 1h 40m 261 93% 3.1% 53 min
DL 5698flown by Republic DCA 06:59 BOS 08:41 1h 42m 325 92% 2.8% 66 min
DL 5687flown by Republic DCA 08:29 BOS 10:14 1h 45m 275 88% 0.4% 73 min
DL 5611flown by Republic DCA 10:00 BOS 11:43 1h 43m 47 85% 0.0% 82 min
DL 5693flown by Republic DCA 11:47 BOS 13:28 1h 43m 284 84% 2.8% 69 min
DL 5592flown by Republic DCA 12:55 BOS 14:39 1h 44m 69 82% 1.4% 102 min
DL 5672flown by Republic DCA 14:35 BOS 16:19 1h 44m 86 78% 4.7% 75 min
DL 5600flown by Republic DCA 15:15 BOS 17:02 1h 49m 234 61% 5.6% 65 min
DL 5839flown by Republic DCA 17:00 BOS 18:51 1h 51m 48 50% 8.3% 101 min
DL 5820flown by Republic DCA 17:00 BOS 18:48 1h 48m 31 52% 0.0% 69 min
DL 5776flown by Republic DCA 17:45 BOS 19:42 1h 56m 190 64% 5.3% 73 min
DL 5689flown by Republic DCA 18:25 BOS 20:23 1h 58m 125 62% 12.8% 84 min
DL 5633flown by Republic DCA 22:00 BOS 23:44 1h 44m 48 67% 18.8% 63 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 DCA BOS 1h 43m 78% 4.1% 3,127 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