ON TIMEBOARD

DEN → LBL on time

Denver (Denver, CO) to Liberal Mid-America (Liberal, KS). Every scheduled flight, September 2025 to August 2026.

On time
82%
arrived < 15 min late
Cancelled
1.6%
627 flights
Typical arrival
−10 min
median vs schedule
When late
+63 min
average delay
Flights / day
2
1 airline

82% of flights from Denver to Liberal arrived on time over the past 12 months. That is about the typical U.S. route. The 8 a.m. departures ran on time 85% of the time; the 4 p.m. ones 77%. 8% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for DEN → LBL: when a flight was late, it was under 45 minutes late 50% of the time. About 1 in 17 flights landed an hour or more late, and 1 in 125 three hours or more; 1.6% were cancelled outright.

Share of all 627 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
United Airlines62782%1.6%−10 min6.1%+63 minSkyWest

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at DEN). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%7 a.m. departures: too few flights (66 flights)7a8 a.m. departures: 85% on time (204 flights)858a9 a.m. departures: too few flights9a10 a.m. departures: too few flights10a11 a.m. departures: too few flights (14 flights)11anoon departures: too few flights (47 flights)12p1 p.m. departures: too few flights1p2 p.m. departures: too few flights2p3 p.m. departures: too few flights (15 flights)3p4 p.m. departures: 77% on time (281 flights)774p
DEN → LBL, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

Last flight of the day

On DEN → LBL, each airline's last flight of the day was cancelled 1.5% of the time, against 1.1% for its earlier flights (1.3× as often). It arrived 3+ hours late 0.8% of the time (earlier flights: 1.1%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
United Airlines4:22 p.m.1.5%0.8%1.1%first flight 8:10 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

If you need to be in LBL tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: October (85%). Worst: August (66%).

40%70%100%Jan: 74% on time (114 flights)74JanFeb: 79% on time (114 flights)79FebMar: 82% on time (137 flights)82MarApr: 79% on time (133 flights)79AprMay: 79% on time (137 flights)79MayJun: 80% on time (133 flights)80JunJul: 72% on time (138 flights)72JulAug: 66% on time (137 flights)66AugSep: 80% on time (133 flights)80SepOct: 85% on time (138 flights)85OctNov: 80% on time (131 flights)80NovDec: 79% on time (137 flights)79Dec

By day of week

DayFlightsOn timeCancelled
Monday10680%0.0%
Tuesday55——
Wednesday10284%1.0%
Thursday10183%0.0%
Friday10476%3.9%
Saturday55——
Sunday10483%1.9%

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Airline (crew, maintenance, ops) 44%Late inbound plane 32%Severe weather 14%Air traffic & airport (NAS) 11%

Cancellations: weather 6 · air traffic/airport 4

Month by month

Not enough months with data to draw a trend.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
UA 50338:10 a.m.12388%1.6%−12 minSkyWest
UA 51144:20 p.m.28076%1.4%−7 minSkyWest

Questions

How often are flights from DEN to LBL on time?

82% of 627 scheduled flights from Denver, CO to Liberal, KS arrived within 15 minutes of schedule between September 2025 and August 2026. 1.6% were cancelled.

What is the best time of day to fly DEN to LBL?

Flights scheduled to leave at 8 a.m. were the most reliable (85% on time). The 4 p.m. departures were the least (77%).

What month has the most delays from DEN to LBL?

August (66% on time). The best month is October (85%), over 2023–2026.

Is the last flight of the day from DEN to LBL more likely to be cancelled?

Yes. Each airline's last DEN–LBL flight of the day was cancelled 1.5% of the time over the past year, against 1.1% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.