Fort Myers (RSW) to Denver (DEN): On-Time Performance
Data through May 2026
The calendar drives reliability on RSW–DEN. October 2024 flights landed on schedule 96% of the time, but July 2025 dropped to 63% — a gap of 33 points. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (92% vs 68%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 3.1
- last 12 months
- Duration
- 4h 20m
- scheduled
- Distance
- 1,607 mi
Best airline from RSW to DEN
3 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 83% | 13 min | 0.8% | 1,446 |
| Southwest Airlines | 79% | 14 min | 0.5% | 562 |
| Frontier Airlines | 70% | 24 min | 1.1% | 87 |
Monthly on-time trend
Best time to fly from RSW to DEN
Aim for departures around 6 a.m. (98% on-time); avoid 5 p.m. departures (57%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 84% | 12 min |
| Tuesday | 81% | 15 min |
| Wednesday | 85% | 12 min |
| Thursdaybest | 86% | 9 min |
| Friday | 81% | 13 min |
| Saturday | 75% | 15 min |
| Sunday | 78% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft42%
- Airline operations25%
- National airspace system28%
- Weather6%
Frequently asked questions
- How often are flights from RSW to DEN delayed?
- 19% of RSW–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 13 minutes.
- Which airline is most reliable from RSW to DEN?
- United Airlines has the best on-time record on this route at 83%, based on 1,446 flights. 3 airlines flew RSW–DEN frequently enough to compare in this period.
- What is the best time of day to fly from RSW to DEN?
- Departures around 6 a.m. have the best record (98% on-time), while departures around 5 p.m. have the worst (57%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from RSW to DEN?
- The scheduled RSW–DEN flight time averages 4h 20m over 1,607 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are RSW to DEN flights cancelled?
- 0.7% 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 RSW to DEN?
- July 2025 was the roughest month in this dataset, with only 63% of arrivals on time. The best was October 2024 at 96%. If your dates are flexible, that 33-point gap is worth planning around.
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Based on 2,095 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.