tailodds FORECAST
Tickets
Any day
1,235 nonstop flights · Aug 2025 – Jul 2026 · US DOT on-time records, all US airlines

United is clearly ahead here: 4 in 5 of its flights arrive on time, 10 points better than Southwest.

Best time to leave 3–4 pm 88% arrive on time from DEN
Best single flight UA 2637 DEN 09:58 → GRR 14:35 · 88% on time Avoid UA 2121 DEN 17:55 → GRR 22:35 · 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).

9
10
11
12
13
14
15
16
17
18
DEN
89
87
79
83
75
74
62
% 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
Grand Rapids flights leaving DEN 3–4 pm: 1Close ×
F9 1248 DEN 15:08 GRR 19:44 2h 34m 148 89% 0.0% 68 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 (incl. SkyWest) 728 79% 0.1% 56 min
Southwest 359 69% 0.3% 46 min
Frontier 148 – 0.0% 68 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 2637 DEN 09:58 GRR 14:35 88%
UA 2121 DEN 17:55 GRR 22:35 71%
All 4 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.
Frontier DEN GRR 2h 34m 89% 0.0% 148 Flying now
United DEN GRR 2h 35m 79% 0.1% 728 Flying now
Southwest DEN GRR 2h 25m 69% 0.3% 359 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