tailodds FORECAST
Tickets
Any day
Showing United only (incl. its regional partners)All airlines ×
950 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

No clear winner: United’s IAD → DAY flights land within a few points of 83% on time whatever the hour.

Best time to leave 8–9 am 86% arrive on time from IAD
Best single flight UA 4327 IAD 08:15 → DAY 09:48 · 89% on time Avoid UA 4274 IAD 17:15 → DAY 19:01 · 80% 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).

8
9
10
11
12
13
14
15
16
17
IAD
87
87
78
% 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 4327flown by CommuteAir IAD 08:15 DAY 09:48 89%
UA 4274flown by CommuteAir IAD 17:15 DAY 19:01 80%

All 4 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 4188flown by GoJet IAD 08:15 DAY 09:48 1h 33m 37 81% 2.7% 84 min
UA 4327flown by CommuteAir IAD 08:15 DAY 09:48 1h 33m 151 89% 0.7% 46 min
UA 4241flown by CommuteAir IAD 12:44 DAY 14:18 1h 34m 148 84% 0.7% 87 min
UA 4274flown by CommuteAir IAD 17:15 DAY 19:01 1h 46m 340 80% 2.1% 94 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 DAY 1h 37m 83% 1.4% 950 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