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9,057 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

Leave before 9 am: 93% depart on time. After 4 pm it’s 65%.

Best time to leave 6–7 am 92% arrive on time from BWI, 92% arrive on time from IAD, 91% arrive on time from DCA
Best airport pair IAD → IAH 85% on time, fewest cancelled (0.4%), 1,873 flights
Best single flight UA 1450 DCA 06:00 → IAH 08:13 · 93% on time Avoid UA 1785 DCA 16:59 → IAH 19:27 · 66% 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
93
91
93
87
88
83
70
80
59
49
70
71
IAD
95
92
86
82
75
81
BWI
94
86
93
77
72
78
85
76
74
75
71
65
58
46
56
46
% 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.
United (incl. SkyWest, Mesa) 5,185 85% 0.8% 79 min
Southwest 2,521 77% 1.5% 57 min
Spirit BWI→IAH only 331 76% 2.4% 103 min
American (incl. PSA, Republic) DCA→IAH only 871 73% 5.5% 69 min
Frontier BWI→IAH only 149 – 6.0% 96 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 1450 DCA 06:00 IAH 08:13 93%
UA 1898 BWI 06:00 IAH 08:16 93%
UA 697 DCA 08:20 IAH 10:41 91%
UA 382 DCA 12:59 IAH 15:18 91%
UA 1524 IAD 08:40 IAH 10:59 89%
· · ·
UA 1381 DCA 14:55 IAH 17:14 78%
UA 2217 IAD 17:59 IAH 20:25 72%
UA 1785 DCA 16:59 IAH 19:27 66%

All 39 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 1898 BWI 06:00 IAH 08:16 3h 16m 206 93% 2.4% 61 min
AA 5074flown by PSA DCA 06:00 IAH 08:22 3h 22m 34 81% 2.9% 114 min
UA 1450 DCA 06:00 IAH 08:13 3h 13m 353 93% 1.1% 66 min
WN 1076 DCA 06:05 HOU 08:15 3h 10m 14 69% 7.1% 26 min
WN 1432 DCA 06:15 HOU 08:25 3h 10m 40 90% 0.0% 58 min
UA 1935 IAD 06:30 IAH 08:39 3h 09m 37 100% 0.0% –
UA 1907 IAD 06:30 IAH 08:39 3h 09m 35 83% 0.0% 53 min
WN 3246 BWI 06:50 HOU 09:00 3h 10m 57 81% 0.0% 28 min
AA 5467flown by PSA DCA 07:59 IAH 10:18 3h 19m 24 70% 4.2% 61 min
UA 697 DCA 08:20 IAH 10:41 3h 21m 341 91% 1.2% 72 min
WN 4158 BWI 08:25 HOU 10:40 3h 15m 12 92% 0.0% 22 min
UA 1524 IAD 08:40 IAH 10:59 3h 19m 334 89% 0.6% 74 min
WN 956 BWI 10:00 HOU 12:15 3h 15m 33 88% 0.0% 42 min
UA 2190 DCA 10:58 IAH 13:19 3h 21m 168 86% 0.6% 69 min
WN 757 BWI 11:00 HOU 13:15 3h 15m 16 100% 0.0% –
WN 1433 DCA 12:48 HOU 14:58 3h 10m 48 47% 2.1% 53 min
UA 1535 IAD 12:50 IAH 15:11 3h 21m 307 84% 0.7% 84 min
UA 743 BWI 12:55 IAH 15:11 3h 16m 52 86% 1.9% 47 min
UA 382 DCA 12:59 IAH 15:18 3h 19m 345 91% 0.3% 114 min
WN 4254 BWI 13:00 HOU 15:15 3h 15m 34 53% 0.0% 69 min
AA 5639flown by PSA DCA 13:44 IAH 16:12 3h 28m 36 71% 2.8% 83 min
AA 5333flown by PSA DCA 13:59 IAH 16:22 3h 23m 26 57% 15.4% 70 min
UA 2857 IAD 14:53 IAH 17:11 3h 18m 45 70% 0.0% 72 min
UA 1381 DCA 14:55 IAH 17:14 3h 19m 303 78% 0.3% 77 min
UA 2095 BWI 15:03 IAH 17:19 3h 16m 118 65% 0.0% 66 min
F9 3067 BWI 16:44 IAH 19:07 3h 28m 149 61% 6.0% 96 min
UA 1785 DCA 16:59 IAH 19:27 3h 28m 292 66% 0.7% 96 min
UA 2217 IAD 17:59 IAH 20:25 3h 26m 341 72% 0.3% 62 min
WN 925 BWI 18:10 HOU 20:25 3h 15m 16 53% 6.2% 95 min
WN 2730 DCA 18:10 HOU 20:35 3h 25m 24 26% 4.2% 78 min
WN 4418 DCA 18:35 HOU 20:50 3h 15m 16 43% 12.5% 81 min
UA 1678 DCA 19:28 IAH 21:59 3h 31m 107 73% 0.9% 123 min
UA 445 DCA 19:28 IAH 21:59 3h 31m 21 67% 0.0% 159 min
AA 5222flown by PSA DCA 19:56 IAH 22:14 3h 18m 26 36% 7.7% 113 min
WN 958 BWI 20:00 HOU 22:15 3h 15m 42 48% 4.8% 75 min
AA 5461flown by PSA DCA 20:13 IAH 22:39 3h 26m 12 80% 16.7% 56 min
AA 5215flown by PSA DCA 20:13 IAH 22:39 3h 26m 24 42% 16.7% 81 min
UA 1986 IAD 22:20 IAH 00:45 3h 25m 37 81% 0.0% 115 min
UA 2050 IAD 22:20 IAH 00:45 3h 25m 35 91% 0.0% 100 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 BWI IAH 3h 32m 85% 1.3% 906 Flying now
United IAD IAH 3h 25m 85% 0.4% 1,873 Flying now
United DCA IAH 3h 22m 84% 0.8% 2,406 Flying now
Southwest DCA HOU 3h 30m 77% 1.8% 1,053 Flying now
Southwest BWI HOU 3h 25m 77% 1.4% 1,468 Flying now
American DCA IAH 3h 37m 73% 5.5% 871 Flying now
Frontier BWI IAH 3h 28m 61% 6.0% 149 Flying now
Spirit BWI IAH 3h 33m 76% 2.4% 331 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