Central Wyoming Regional Airport (RIW): Delays & On-Time Performance
Data through July 2026
Central Wyoming Regional Airport (RIW) runs noticeably smoother than most US airports: 86% of its ~2 daily departures leave on time, 8 points above the national average, with an average departure delay of just 24 minutes. 1 airlines fly from Riverton/Lander, WY to 2 destinations.
- Departures on-time
- 86%
- left <15 min late
- Avg dep delay
- 24 min
- Arrivals on-time
- 81%
- Cancelled
- 0.5%
- Destinations
- 2
- nonstop
- Airlines
- 1
Plan your departure from RIW
The choices most likely to improve your odds, based on this airport’s historical record.
- Best day to fly
- Monday
- 86% on-time
- Cancellation risk
- 0.5%
- below the US average
Monthly on-time trend
Best time of day to depart from RIW
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 86% | 21 min |
| Tuesday | 82% | 28 min |
| Wednesday | 85% | 20 min |
| Thursday | 80% | 25 min |
| Friday | 83% | 19 min |
| Saturday | 78% | 40 min |
| Sunday | 84% | 27 min |
Busiest routes from RIW
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| RIW → DEN (Denver) | 728 | 83% | 26 min |
Where flights into RIW come from
| Route | Flights/12mo | On-time | Avg delay |
|---|---|---|---|
| DEN (Denver) → RIW | 728 | 81% | 19 min |
What causes delays at RIW
Share of total delay minutes by cause, as reported by carriers to the US DOT, weighted across routes departing RIW.
- Late-arriving aircraft28%
- Airline operations52%
- National airspace system10%
- Weather10%
Alternative airports near Riverton/Lander
Other airports within 120 miles, compared on departure reliability.
| Airport | Distance | On-time departures | Avg delay |
|---|---|---|---|
| CPR — Casper-Natrona County International Airport | 102 mi | 82% | 18 min |
| COD — Yellowstone Regional Airport | 104 mi | 74% | 27 min |
| RKS — Southwest Wyoming Regional Airport | 106 mi | 84% | 29 min |
Compare the airport-level record first, then check the exact route you plan to book.
Frequently asked questions
- How often are flights delayed at RIW?
- 14% of departures from Central Wyoming Regional Airport left 15+ minutes late between 2024-07 and 2026-07, with an average departure delay of 24 minutes. The national on-time average over the same period was 78%.
- How often are flights cancelled at RIW?
- 0.5% of scheduled departures from RIW were cancelled in this period, compared with a national rate of 1.6%.
Popular route pages from this airport
Related guides
Based on 1,520 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.