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15,759 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am from Dulles or National: 93% depart on time. After 4 pm it’s 2 in 3.

Best time to leave 5–6 am 90% arrive on time from BWI
Best airport pair DCA → MDW 78% on time, 2.7% cancelled, 2,099 flights
Best single flight UA 1793 DCA 06:30 → ORD 07:46 · 92% on time Avoid UA 2497 IAD 17:42 → ORD 18:50 · 48% 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).

5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
DCA
94
90
91
84
88
77
86
78
81
69
78
72
61
68
66
54
71
IAD
97
93
92
87
85
73
81
84
BWI
92
93
87
90
78
88
84
69
75
70
74
66
72
67
63
54
47
38
% 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.

Airlines on this route

Arriving within 15 minutes. Regional flights count under the airline that sells them. Pick an airline to see its flights.
Southwest 3,959 78% 2.4% 62 min
United (incl. SkyWest, Republic) 7,407 76% 2.2% 84 min
American (incl. Envoy, Republic) 4,164 76% 3.8% 88 min
Frontier 211 71% 3.3% 170 min
Spirit BWI→ORD only 18 – 0.0% 54 min

Dimmed: fewer than 150 flights in the year, too few to rank.

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.
UA 1793 DCA 06:30 ORD 07:46 92%
UA 2201 DCA 10:30 ORD 11:48 91%
UA 1775 IAD 08:15 ORD 09:36 84%
AA 2304 DCA 07:40 ORD 09:00 83%
UA 2331 IAD 13:15 ORD 14:29 81%
· · ·
UA 2148 DCA 18:10 ORD 19:32 51%
UA 654 DCA 17:05 ORD 18:30 50%
UA 2497 IAD 17:42 ORD 18:50 48%
All 65 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.
American BWI ORD 2h 28m 78% 3.7% 1,199 Flying now
Southwest DCA MDW 2h 05m 78% 2.7% 2,099 Flying now
Southwest BWI MDW 2h 05m 77% 2.2% 1,767 Flying now
United IAD ORD 2h 14m 76% 1.0% 2,085 Flying now
United DCA ORD 2h 20m 76% 3.1% 4,083 Flying now
United BWI ORD 2h 18m 75% 1.2% 1,239 Flying now
American DCA ORD 2h 26m 75% 3.9% 2,965 Flying now
Southwest BWI ORD 2h 15m 90% 0.0% 93 Not flying now
Frontier BWI MDW 2h 04m 77% 1.4% 71 Not flying now
Frontier BWI ORD 2h 24m 68% 4.3% 140 Not flying now
Spirit BWI ORD – 89%few flights 0.0% 18 Not 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