Leave before 9 am: 9 in 10 depart on time. After 4 pm it’s 4 in 5.
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).
Pick an hour to see this route’s flights leaving then.
All 7 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 4437flown by GoJet | IAD 08:25 | BUF 09:50 | 1h 25m | 16 | 88% | 0.0% | 128 min |
| UA 3514flown by Republic | IAD 08:25 | BUF 09:51 | 1h 26m | 33 | 97% | 6.1% | 134 min |
| UA 4327flown by CommuteAir | IAD 08:25 | BUF 09:51 | 1h 26m | 13 | 92% | 0.0% | 16 min |
| UA 4335flown by CommuteAir | IAD 12:59 | BUF 14:25 | 1h 26m | 274 | 82% | 2.6% | 75 min |
| UA 4823flown by CommuteAir | IAD 17:30 | BUF 19:03 | 1h 33m | 241 | 76% | 4.1% | 83 min |
| UA 4474flown by GoJet | IAD 22:26 | BUF 23:58 | 1h 32m | 29 | 79% | 0.0% | 59 min |
| UA 3516flown by Republic | IAD 22:26 | BUF 23:59 | 1h 33m | 42 | 84% | 9.5% | 95 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 | BUF | 1h 27m | 81% | 2.5% | 1,150 | Flying now |
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