2,177 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

United is clearly ahead here: 83% of its flights arrive on time, 11 points better than Frontier.

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

Best single flight UA 379 IAD 08:45 → MCO 11:08 · 89% on time Avoid UA 2463 IAD 17:22 → MCO 19:45 · 71% 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

Orlando flights leaving IAD 5–6 pm: 1Close ×


UA 2463	IAD 17:22	MCO 19:45	2h 23m	365	71%	1.1%	70 min

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	1,888	83%	0.8%	70 min
Frontier	289	72%	2.4%	84 min

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 379	IAD 08:45	MCO 11:08	89%
UA 2206	IAD 12:35	MCO 14:58	86%
UA 689	IAD 22:33	MCO 01:01	84%
UA 2463	IAD 17:22	MCO 19:45	71%

All 6 flights on this route →

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	MCO	2h 28m	83%	0.8%	1,888	Flying now
Frontier	IAD	MCO	2h 32m	72%	2.4%	289	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