Route on-time record
MCI to DEN: most on-time flights and the best time to fly
Kansas City (Kansas City International Airport) to Denver (Denver International Airport). 4,233 nonstop flights in Jun 2025 to May 2026, 75% arrived within 15 minutes and 0.6% were cancelled. The most reliable flight number was SkyWest 5253 at 6:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
MCI → DEN
Kansas City to Denver: 4,233 nonstop flights a year
On time (12 months)
75%
Cancelled
0.6%
avg delay 18 min
Best time to leave
Before 9 AM
88% on time vs 55% 3 to 6 PM
Most reliable airline
SkyWest
87% chance on time
Lowest nonstop fare seen in the next two months: $78 (Frontier 3375 on 2026-11-23). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · SkyWest 5253 · sold as United Express, Delta Connection, American Eagle or Alaska
6:00 AM → 7:05 AM2h 05m nonstop
Local times, typical schedule. Last flown 2026-04-29.
95%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 97% of the time (29 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 55%).
- Short track record (29 flights), so its score leans on the airline's record at this hour.
Limited track record · 29 flights
Find 6:00 AM flight fares Opens this date on Aviasales#2 · SkyWest 5511 · sold as United Express, Delta Connection, American Eagle or Alaska
11:33 AM → 12:38 PM2h 05m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (9 flights, Jun 2025 to May 2026).
- Short track record (9 flights), so its score leans on the airline's record at this hour.
Limited track record · 9 flights
Find 11:33 AM flight fares Opens this date on Aviasales#3 · Southwest 1751
6:40 AM → 7:30 AM1h 50m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3384; its record covers all of them.
93%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 97% of the time (87 flights, Jun 2025 to May 2026).
- Never cancelled in 87 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 55%).
Moderate track record · 87 flights
Find Southwest 1751 fares Opens this date on Aviasales#4 · United 355
6:00 AM → 7:02 AM1h 59m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 95%
- Cancelled
- 2.3%
- Avg arrival delay
- 5 min
- Arrived on time 95% of the time (85 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 55%).
Moderate track record · 85 flights
Find United 355 fares Opens this date on Aviasales#5 · United 1579
11:29 AM → 12:32 PM2h 03m nonstop
Local times, typical schedule. Last flown 2026-05-20.
88%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (18 flights, Jun 2025 to May 2026).
- Short track record (18 flights), so its score leans on the airline's record at this hour.
Limited track record · 18 flights
Find United 1579 fares Opens this date on Aviasales#6 · United 708
1:50 PM → 2:55 PM2h 01m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.0%
- Avg arrival delay
- 7 min
- Arrived on time 87% of the time (280 flights, Jun 2025 to May 2026).
- Never cancelled in 281 scheduled flights.
- Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Strong track record · 280 flights
Find United 708 fares Opens this date on Aviasales#7 · Southwest 3019
8:45 AM → 9:35 AM1h 50m nonstop
Local times, typical schedule. Last flown 2026-05-29. Same departure also flew as Southwest 1331; its record covers all of them.
84%
chance on time
- On time (history)
- 93%
- Cancelled
- 2.3%
- Avg arrival delay
- 5 min
- Arrived on time 93% of the time (42 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 55%).
- Short track record (42 flights), so its score leans on the airline's record at this hour.
Limited track record · 42 flights
Find Southwest 3019 fares Opens this date on Aviasales#8 · United 2058
8:49 AM → 9:49 AM2h 00m nonstop
Local times, typical schedule. Last flown 2026-05-20. Same departure also flew as United 2031; its record covers all of them.
83%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 87% of the time (45 flights, Jun 2025 to May 2026).
- Never cancelled in 45 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 88% on time; 3 to 6 PM: 55%).
- Short track record (45 flights), so its score leans on the airline's record at this hour.
Limited track record · 45 flights
Find United 2058 fares Opens this date on Aviasales#9 · Southwest 1219
12:05 PM → 12:55 PM1h 50m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 3942; its record covers all of them.
80%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.0%
- Avg arrival delay
- 11 min
- Arrived on time 85% of the time (60 flights, Jun 2025 to May 2026).
- Never cancelled in 60 scheduled flights.
- 55% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 60 flights
Find Southwest 1219 fares Opens this date on Aviasales#10 · United 280
9:10 AM → 10:17 AM2h 07m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 93% of the time (30 flights, Jun 2025 to May 2026).
- Never cancelled in 30 scheduled flights.
- Short track record (30 flights), so its score leans on the airline's record at this hour.
Limited track record · 30 flights
Find United 280 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)87%
359 flights · 90% on time as flown · 0.4% cancel
- United Airlines75%
1,296 flights · 75% on time as flown · 0.4% cancel
- Southwest Airlines72%
2,333 flights · 72% on time as flown · 0.7% cancel
- Frontier Airlines71%
245 flights · 72% on time as flown · 0.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM88%
1,037 flights · avg delay 8 min
- 9 AM to noon78%
907 flights · avg delay 11 min
- Noon to 3 PM81%
808 flights · avg delay 13 min
- 3 to 6 PM55%
890 flights · avg delay 34 min
- 6 to 9 PM63%
537 flights · avg delay 30 min
Best day: Wednesday (81%). Worst: Friday (75%).
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Air traffic control and airport volume38%
- Late-arriving aircraft36%
- Airline (crew, maintenance, boarding)20%
- Severe weather6%
Share of delay minutes by the cause airlines report to the US DOT.
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure
MCI to DEN questions
- What time of day is best to fly MCI to DEN?
- Before 9 AM: 88% of flights arrived on time, against 55% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from MCI to DEN?
- SkyWest, with a season-adjusted 87% chance of operating and arriving on time over 359 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on MCI to DEN?
- June (67% on time); the best was November (85%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from MCI
- DEN to MCI (return)
- MCI to ORD 74%
- MCI to ATL 87%
- MCI to DFW 73%
- MCI to PHX 79%
- MCI to MDW 80%
- MCI to DAL 81%
- MCI to LAS 81%
- MCI to DCA 74%
- MCI to LGA 76%
- MCI to MCO 79%
- MCI to BNA 83%
- MCI to DTW 88%
Live status: FAA delays and ground stops