Route on-time record
SLC to COS: most on-time flights and the best time to fly
Salt Lake City (Salt Lake City International Airport) to Colorado Springs (City of Colorado Springs Municipal Airport). 686 nonstop flights in Jun 2025 to May 2026, 91% arrived within 15 minutes and 0.1% were cancelled. The most reliable flight number was SkyWest 4449 at 9:40 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SLC → COS
Salt Lake City to Colorado Springs: 686 nonstop flights a year
On time (12 months)
91%
Cancelled
0.1%
avg delay 5 min
Best time to leave
9 AM to noon
95% on time vs 89% noon to 3 PM
Most reliable airline
SkyWest
91% 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 · SkyWest 4449 · sold as United Express, Delta Connection, American Eagle or Alaska
9:40 AM → 11:24 AM1h 42m nonstop
Local times, typical schedule. Last flown 2026-05-31.
93%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 93% of the time (159 flights, Jun 2025 to May 2026).
- Never cancelled in 159 scheduled flights.
- Leaves in this route's most on-time window (9 AM to noon: 95% on time; Noon to 3 PM: 89%).
Moderate track record · 159 flights
Find 9:40 AM flight fares Opens this date on Aviasales#2 · SkyWest 3788 · sold as United Express, Delta Connection, American Eagle or Alaska
8:30 PM → 10:05 PM1h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 91% of the time (169 flights, Jun 2025 to May 2026).
- Never cancelled in 170 scheduled flights.
Moderate track record · 169 flights
Find 8:30 PM flight 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)91%
686 flights · 91% on time as flown · 0.1% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 9 AM to noon95%
147 flights · avg delay 3 min
- Noon to 3 PM89%
35 flights · avg delay 8 min
- 3 to 6 PM91%
151 flights · avg delay 4 min
- 6 to 9 PM90%
350 flights · avg delay 6 min
Best day: Wednesday (89%). Worst: Thursday (85%).
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
- Airline (crew, maintenance, boarding)74%
- Severe weather18%
- Air traffic control and airport volume8%
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
SLC to COS questions
- What time of day is best to fly SLC to COS?
- 9 AM to noon: 95% of flights arrived on time, against 89% for departures noon to 3 PM.
- Which airline is most on time from SLC to COS?
- SkyWest, with a season-adjusted 91% chance of operating and arriving on time over 686 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 SLC to COS?
- July (80% on time); the best was October (96%), 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 SLC
- COS to SLC (return)
- SLC to DEN 77%
- SLC to PHX 84%
- SLC to SEA 79%
- SLC to LAX 86%
- SLC to DFW 78%
- SLC to LAS 78%
- SLC to SFO 72%
- SLC to ORD 75%
- SLC to ATL 86%
- SLC to SAN 84%
- SLC to PDX 88%
- SLC to SMF 86%
Live status: FAA delays and ground stops