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Showing United only (incl. its regional partners)All airlines ×
7,407 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 3 in 4.

Best time to leave 6–7 am 92% arrive on time from IAD, 92% arrive on time from DCA, 90% arrive on time from BWI
Best airport pair IAD → ORD 76% on time, fewest cancelled (1.0%), 2,085 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).

6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
DCA
98
94
92
96
93
83
87
83
82
77
74
66
78
70
IAD
97
93
92
87
85
73
81
84
BWI
94
89
89
94
79
75
74
69
% 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.
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%
UA 2331 IAD 13:15 ORD 14:29 81%
UA 1738 IAD 22:20 ORD 23:31 80%
· · ·
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 35 United 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.
UA 1778 IAD 06:10 ORD 07:27 2h 17m 55 96% 0.0% 24 min
UA 2070 IAD 06:10 ORD 07:27 2h 17m 37 84% 0.0% 42 min
UA 709 BWI 06:15 ORD 07:30 2h 15m 36 81% 0.0% 22 min
UA 581 BWI 06:20 ORD 07:35 2h 15m 35 88% 2.9% 46 min
UA 1793 DCA 06:30 ORD 07:46 2h 16m 363 92% 1.7% 63 min
UA 441 DCA 07:15 ORD 08:29 2h 14m 122 86% 2.5% 53 min
UA 2638 DCA 07:15 ORD 08:28 2h 13m 29 90% 0.0% 37 min
UA 1775 IAD 08:15 ORD 09:36 2h 21m 310 84% 0.6% 40 min
UA 2749 BWI 08:16 ORD 09:30 2h 14m 37 86% 0.0% 44 min
UA 2844 BWI 08:25 ORD 09:39 2h 14m 29 90% 0.0% 22 min
UA 1061 DCA 08:25 ORD 09:43 2h 18m 84 93% 2.4% 62 min
UA 2774 DCA 09:30 ORD 10:50 2h 20m 36 94% 8.3% 109 min
UA 730 DCA 09:30 ORD 10:50 2h 20m 35 91% 2.9% 27 min
UA 2201 DCA 10:30 ORD 11:48 2h 18m 309 91% 1.9% 69 min
UA 1252 IAD 10:31 ORD 11:53 2h 22m 125 92% 0.8% 59 min
UA 704 BWI 10:32 ORD 11:48 2h 16m 85 90% 0.0% 31 min
UA 374 DCA 11:57 ORD 13:15 2h 18m 101 85% 1.0% 172 min
UA 1048 DCA 11:57 ORD 13:15 2h 18m 21 76% 0.0% 173 min
UA 511 DCA 13:00 ORD 14:18 2h 18m 139 76% 4.3% 102 min
UA 2331 IAD 13:15 ORD 14:29 2h 14m 365 81% 0.8% 109 min
UA 1888 DCA 14:00 ORD 15:18 2h 18m 166 71% 1.8% 103 min
UA 1325 DCA 15:30 ORD 16:52 2h 22m 190 66% 4.7% 101 min
UA 1393 IAD 15:39 ORD 17:02 2h 23m 37 64% 2.7% 157 min
UA 2649 IAD 15:39 ORD 17:02 2h 23m 56 66% 0.0% 95 min
UA 654 DCA 17:05 ORD 18:30 2h 25m 227 50% 3.1% 92 min
UA 590 BWI 17:32 ORD 18:55 2h 23m 362 57% 0.6% 98 min
UA 2497 IAD 17:42 ORD 18:50 2h 08m 365 48% 1.1% 78 min
UA 2148 DCA 18:10 ORD 19:32 2h 22m 332 51% 2.7% 89 min
UA 791 BWI 18:38 ORD 20:02 2h 24m 36 53% 5.6% 117 min
UA 276 BWI 19:05 ORD 20:29 2h 24m 35 59% 2.9% 86 min
UA 1193 DCA 19:10 ORD 20:32 2h 22m 147 58% 4.8% 90 min
UA 5450flown by SkyWest DCA 20:00 ORD 21:35 2h 35m 27 54% 11.1% 64 min
UA 2218 DCA 20:10 ORD 21:32 2h 22m 105 63% 1.9% 67 min
UA 5574flown by SkyWest DCA 20:20 ORD 21:55 2h 35m 21 50% 4.8% 135 min
UA 1738 IAD 22:20 ORD 23:31 2h 11m 360 80% 2.2% 90 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.
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
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