Great Falls (GTF) to Denver (DEN): On-Time Performance

Best airline from GTF to DEN

2 airlines flew this route regularly between 2024-06 and 2026-05.

Monthly on-time trend

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

• Late-arriving aircraft23%
• Airline operations24%
• National airspace system32%
• Weather21%

Frequently asked questions

How often are flights from GTF to DEN delayed?

15% of GTF–DEN flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 14 minutes.

Which airline is most reliable from GTF to DEN?

SkyWest Airlines has the best on-time record on this route at 87%, based on 656 flights. 2 airlines flew GTF–DEN frequently enough to compare in this period.

What is the best time of day to fly from GTF to DEN?

Departures around 6 a.m. have the best record (91% on-time), while departures around 2 p.m. have the worst (79%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.

How long is the flight from GTF to DEN?

The scheduled GTF–DEN flight time averages 2h 5m over 623 miles. Actual arrival times vary — flights on this route land 15+ minutes late 15% of the time.

How often are GTF to DEN flights cancelled?

1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.

What is the worst month to fly from GTF to DEN?

January 2025 was the roughest month in this dataset, with only 71% of arrivals on time. The best was December 2024 at 95%. If your dates are flexible, that 24-point gap is worth planning around.