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4,830 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 6–7 am 89% arrive on time from LGA
Best single flight DL 5770 LGA 06:05 → DCA 07:23 · 89% on time Avoid DL 5724 LGA 19:20 → DCA 20:59 · 50% 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
LGA
93
90
92
89
83
87
75
83
77
67
62
71
67
62
61
% 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
Washington flights leaving LGA 11 am–12 pm: 1Close ×
DL 5749flown by Republic LGA 11:20 DCA 12:46 1h 26m 347 78% 4.0% 59 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. Endeavor, Republic) 2,312 70% 5.6% 62 min
American (incl. Republic) 2,518 66% 5.2% 61 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 5770flown by Republic LGA 06:05 DCA 07:23 89%
DL 5742flown by Republic LGA 08:50 DCA 10:15 83%
DL 5749flown by Republic LGA 11:20 DCA 12:46 78%
DL 5717flown by Republic LGA 17:20 DCA 18:58 62%
DL 5709flown by Republic LGA 14:45 DCA 16:20 61%
· · ·
DL 5724flown by Republic LGA 19:20 DCA 20:59 50%
All 15 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 LGA DCA 1h 27m 70% 5.6% 2,312 Flying now
American LGA DCA 1h 28m 66% 5.2% 2,518 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