Route on-time record
RIW to DEN: most on-time flights and the best time to fly
Riverton (Central Wyoming Regional Airport) to Denver (Denver International Airport). 728 nonstop flights in Jun 2025 to May 2026, 83% arrived within 15 minutes and 0.4% were cancelled. The most reliable flight number was SkyWest 5130 at 5:15 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
RIW → DEN
Riverton to Denver: 728 nonstop flights a year
On time (12 months)
83%
Cancelled
0.4%
avg delay 24 min
Best time to leave
Before 9 AM
86% on time vs 79% noon to 3 PM
Most reliable airline
SkyWest
82% 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 5130 · sold as United Express, Delta Connection, American Eagle or Alaska
5:15 AM → 6:42 AM1h 27m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.6%
- Avg arrival delay
- 23 min
- Arrived on time 86% of the time (361 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 86% on time; Noon to 3 PM: 79%).
Strong track record · 361 flights
Find 5:15 AM flight fares Opens this date on Aviasales#2 · SkyWest 5077 · sold as United Express, Delta Connection, American Eagle or Alaska
2:13 PM → 3:40 PM1h 27m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as SkyWest 6060; its record covers all of them.
74%
chance on time
- On time (history)
- 72%
- Cancelled
- 0.7%
- Avg arrival delay
- 27 min
- Arrived on time 72% of the time (141 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (Noon to 3 PM: 79% on time; Before 9 AM: 86%).
- 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 · 141 flights
Find 2:13 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)82%
728 flights · 83% on time as flown · 0.4% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM86%
363 flights · avg delay 23 min
- Noon to 3 PM79%
364 flights · avg delay 25 min
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)54%
- Late-arriving aircraft27%
- Severe weather11%
- Air traffic control and airport volume9%
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
RIW to DEN questions
- What time of day is best to fly RIW to DEN?
- Before 9 AM: 86% of flights arrived on time, against 79% for departures noon to 3 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 RIW to DEN?
- SkyWest, with a season-adjusted 82% chance of operating and arriving on time over 728 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 RIW to DEN?
- August (80% on time); the best was September (92%), 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 RIW
Live status: FAA delays and ground stops