Showing United only (incl. its regional partners)All airlines ×

1,124 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 4 in 5.

Best time to leave 9–10 am 94% arrive on time from IAD

Best single flight UA 683 IAD 09:00 → TPA 11:32 · 91% on time Avoid UA 1140 IAD 18:00 → TPA 20:39 · 75% 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).

IAD

% 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 683	IAD 09:00	TPA 11:32	91%
UA 2277	IAD 12:49	TPA 15:15	86%
UA 1140	IAD 18:00	TPA 20:39	75%

All 3 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 683	IAD 09:00	TPA 11:32	2h 32m	342	91%	0.6%	60 min
UA 2277	IAD 12:49	TPA 15:15	2h 26m	353	86%	0.3%	63 min
UA 1140	IAD 18:00	TPA 20:39	2h 39m	348	75%	0.6%	66 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	TPA	2h 34m	84%	0.4%	1,124	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