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9,090 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 3 in 5.

Best time to leave 6–7 am 92% arrive on time from DCA
Best single flight DL 5710 DCA 06:00 → BOS 07:40 · 93% on time Avoid AA 3207 DCA 17:00 → BOS 18:47 · 43% 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
92
93
85
84
85
78
80
68
69
61
52
56
57
61
63
63
70
% 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 DCA 5–6 pm: 5Close ×
AA 3207 DCA 17:00 BOS 18:47 1h 47m 191 43% 2.1% 89 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
B6 2954 DCA 17:25 BOS 19:03 1h 41m 137 49% 5.1% 108 min
DL 5776flown by Republic DCA 17:45 BOS 19:42 1h 56m 190 64% 5.3% 73 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) 3,127 78% 4.1% 72 min
American (incl. Envoy, Republic) 3,337 70% 3.4% 78 min
JetBlue 2,626 66% 4.3% 90 min

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%
· · ·
B6 2754 DCA 18:41 BOS 20:15 50%
B6 1354 DCA 14:25 BOS 16:00 49%
AA 3207 DCA 17:00 BOS 18:47 43%
All 33 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 DCA BOS 1h 43m 78% 4.1% 3,127 Flying now
American DCA BOS 1h 37m 70% 3.4% 3,337 Flying now
JetBlue DCA BOS 1h 35m 66% 4.3% 2,626 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