WYS to DEN flight delays & on-time performance
Nonstop flights from Yellowstone Airport to Denver International Airport · 469 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at WYS or DEN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from West Yellowstone (WYS) to Denver (DEN) arrived on time 74% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.5% were cancelled, and 14% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 1pm did best (80% on time); around 5pm did worst (70%).
- Friday was the most reliable day to fly (85% on time) and Monday the least (52%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (45%).
Which airline is most on time from WYS to DEN?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 74% | 0.5% | 30 min | 13.6% | 207 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 1pm80%58 flights
- 2pm70%105 flights
- 5pm70%33 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday52%0.0% cancelled
- Tuesday75%0.0% cancelled
- Wednesday82%0.0% cancelled
- Thursday77%0.0% cancelled
- Friday85%0.0% cancelled
- Saturday73%2.3% cancelled
- Sunday71%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)45%
- Late-arriving aircraft40%
- Air traffic control & airport congestion10%
- Extreme weather6%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
WYS to DEN: common questions
- How often are WYS to DEN flights on time?
- 74% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from West Yellowstone to Denver cancelled?
- 0.5% of scheduled flights were cancelled (1 of 207).
- How long are typical delays?
- Across all flights the average arrival delay was 30 min (early arrivals count as zero). Flights that were late arrived 109 min behind schedule on average, and 13.6% of flights were an hour or more late.
- How long is taxi time at WYS?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: WYS → DEN, nonstop flights by US airlines that report to the DOT. How we calculate this.