Route on-time record
FCA to DEN: most on-time flights and the best time to fly
Kalispell (Glacier Park International Airport) to Denver (Denver International Airport). 1,063 nonstop flights in Jun 2025 to May 2026, 83% arrived within 15 minutes and 1.0% were cancelled. The most reliable flight number was United 2031 at 6:20 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
FCA → DEN
Kalispell to Denver: 1,063 nonstop flights a year
On time (12 months)
83%
Cancelled
1.0%
avg delay 16 min
Best time to leave
Before 9 AM
94% on time vs 64% 3 to 6 PM
Most reliable airline
SkyWest
85% chance on time
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 · United 2031
6:20 AM → 8:28 AM2h 08m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (11 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 94% on time; 3 to 6 PM: 64%).
Limited track record · 11 flights
Find United 2031 fares Opens this date on Aviasales#2 · United 1110
6:00 AM → 8:18 AM2h 18m nonstop
Local times, typical schedule. Last flown 2026-05-20.
91%
chance on time
- On time (history)
- 95%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 95% of the time (21 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 94% on time; 3 to 6 PM: 64%).
Limited track record · 21 flights
Find United 1110 fares Opens this date on Aviasales#3 · SkyWest 5991 · sold as United Express, Delta Connection, American Eagle or Alaska
10:42 AM → 1:06 PM2h 24m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
Limited track record · 11 flights
Find 10:42 AM flight fares Opens this date on Aviasales#4 · United 1199
2:33 PM → 4:50 PM2h 17m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.6%
- Avg arrival delay
- 8 min
- Arrived on time 89% of the time (63 flights, Jun 2025 to May 2026).
- Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Moderate track record · 63 flights
Find United 1199 fares Opens this date on Aviasales#5 · United 1835
5:28 PM → 7:45 PM2h 17m nonstop
Local times, typical schedule. Last flown 2026-05-31.
69%
chance on time
- On time (history)
- 75%
- Cancelled
- 0.0%
- Avg arrival delay
- 15 min
- Arrived on time 75% of the time (8 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 64% on time; Before 9 AM: 94%).
- Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Limited track record · 8 flights
Find United 1835 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)85%
240 flights · 86% on time as flown · 0.4% cancel
- United Airlines81%
823 flights · 82% on time as flown · 1.3% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM94%
364 flights · avg delay 5 min
- 9 AM to noon93%
158 flights · avg delay 4 min
- Noon to 3 PM76%
364 flights · avg delay 23 min
- 3 to 6 PM64%
177 flights · avg delay 36 min
Best day: Sunday (84%). Worst: Friday (78%).
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 volume43%
- Airline (crew, maintenance, boarding)29%
- Late-arriving aircraft23%
- Severe weather4%
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
FCA to DEN questions
- What time of day is best to fly FCA to DEN?
- Before 9 AM: 94% of flights arrived on time, against 64% 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 FCA to DEN?
- SkyWest, with a season-adjusted 85% chance of operating and arriving on time over 240 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 FCA to DEN?
- January (75% on time); the best was April (91%), 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 FCA
Live status: FAA delays and ground stops