RSW → DEN Flight Reliability

Right now

Origin · RSWNo disruption reported

Aviation weather is not currently a factor.

Updated 13:53 UTC

Fort Myers airport profile →

Destination · DENNo disruption reported

Aviation weather is not currently a factor.

Updated 13:53 UTC

Denver airport profile →

Route reliability

July 2023 – July 2026

Route Reliability Score

71/ 100Good

Better than 64% of comparable major US routes (4,598 compared)

Calculated from 2,989 flights. How this is calculated · What counts as on time

On-time arrivals

81.1%

2,390 of 2,947

Cancellation rate

1.04%

31 cancelled

Median arrival delay

-8 min

Average 3.4 min

Severe delays

6.5%

60+ minutes late

Delay when late

70 min

Average, when 15+ min late

Flights analyzed

2,989

2 carriers

RSW → DEN arrives on time 81.1% of the time; the return trip, DEN → RSW, arrives on time 78.5% of the time, a 2.6-point gap between the two directions of the same city pair.

RSW → DEN spends 26.6 minutes on the ground on a 1,607-mile trip: 15.6 minutes from pushback to wheels-up at RSW and 11.0 minutes from touchdown to gate at DEN.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

What sets this route apart

Where RSW to DEN differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.

RSW to DEN is at its best against routes of similar length for flights scheduled at 11 AM: 86.7% arrive on time, 8.7 points ahead of the 78.0% those routes manage at that hour.

RSW to DEN struggles most at 4 PM: 65.2% of its flights scheduled then arrive on time, 6 points behind the 71.2% on routes of similar length at the same hour. Against all other routes the gap is 5.5 points.

RSW to DEN holds up on Thursdays better than routes of similar length do: 84.9% on time to their 76.5%, a 8.4 points lead. Against all other routes the gap is 8.1 points.

Saturday is the day RSW to DEN slips furthest against routes of similar length, 74.7% on time where they average 78.8%, 4.1 points lower. Against all other routes the gap is 4.4 points.

October is kinder to RSW to DEN than to routes of similar length: 89.8% on time against 82.8%, 7 points better. Against all other routes the gap is 6.8 points.

RSW to DEN against comparable routes

July 2023 – July 2026

Where RSW to DEN differs most from comparable routes, with the group each figure is compared with and the flights behind it
Measure	This route	Compared with	Them	Gap	Flights behind it
Hour: 11 AM departures	86.7%	routes of similar length	78.0%	+8.7 pts	128 here, 94,386 there
Hour: 4 PM departures	65.2%	routes of similar length	71.2%	−6.0 pts	396 here, 89,806 there
Weekday: Thursday	84.9%	routes of similar length	76.5%	+8.4 pts	410 here, 241,807 there
Weekday: Saturday	74.7%	routes of similar length	78.8%	−4.1 pts	482 here, 214,775 there
Month: October	89.8%	routes of similar length	82.8%	+7.0 pts	197 here, 138,074 there

Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 1,607 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.

When it goes wrong

July 2023 – July 2026

One arrival in ten is worse than

38 min late

against a median of 8 min early

Arrived an hour or more late6.5%

Typical delay when late70 min

Cancelled1.04%

Landed somewhere else0.37%

Percentiles over 2,989 operations; cancelled and diverted flights are counted separately.

Will your connection be tight enough?

Layovers at DEN after arriving from RSW.

Connection buffer and chance of missing by layover length, RSW → DEN arrivals
Connection time	Chance of missing	Reads as
30 min	33%	Likely to miss
45 min	18%	High risk
60 min	12%	Some risk
90 min	6.5%	Some risk
120 min	4.2%	Low risk

This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 1.04% of the time and diverts 0.37% of the time, which a late arrival never shows up in.

Chance of missing is the share of 2,947 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.

The worst tenth of arrivals on this route land at least 38 minutes late (90th-percentile gate arrival delay), over 2,989 operations.

Any other layover length: connection checker.

Best time to fly

RSW → DEN flights departing 5–9 AM arrived on time 93.9% of the time, against 72.9% for 3–6 PM departures, a gap of 21.0 percentage points.

By departure window

5–9 AM93.9%

9 AM–12 PM87.2%

12–3 PM74.4%

3–6 PM72.9%

6–9 PM—

9 PM–5 AM—

By departure hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Departure windows with fewer than 120 flights are not scored.

Why RSW → DEN runs late

July 2023 – July 2026

Late-arriving aircraft44.7%

the inbound aircraft was late, so this flight started late

Air traffic control27.3%

airspace and airport capacity, including weather-driven flow control

The airline21.6%

crew, maintenance, boarding and fueling, all within the carrier’s control

Weather6.4%

weather severe enough to stop this flight specifically

Share of the delay minutes US DOT attributed to each cause for RSW → DEN. Only delays of 15 minutes or more are attributed. What the five causes mean

Late-arriving aircraft is the largest cause on RSW → DEN, at 44.7%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 93.9% of the time and 3–6 PM departures 72.9%.

Airlines on this route

Carriers with at least 200 flights, by the airline that operated each one.

Airlines on this route
Carrier	Flights	On time	Cancelled	Median delay	Severe
United Airlines	2,135	82.9%	1.12%	-9 min	6.2%
Southwest Airlines	688	77.8%	0.58%	-5 min	6.9%

United Airlines flew 75.6% of the 2,823 flights listed.

United Airlines arrived on time 5.1 percentage points more often than Southwest Airlines on this route.

Weekly and seasonal patterns

By day of week

Mon84.7%

Tue80.1%

Wed82.6%

Thu84.9%

Fri81.6%

Sat74.7%

Sun80.1%

Thursday is historically the most reliable day and Saturday the least, a gap of 10.2 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

July is historically the weakest month and October the strongest, a spread of 20.8 percentage points.

Reliability over time

July 2023 – July 2026

24

25

26

Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 83.0% against 81.4% in the 12 months before — improving by 1.6 percentage points.

Data and methodology

Calculated by FlyerIntel from 2,989 RSW → DEN flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.

Full methodology · Data sources · Report a problem

Analysis last recomputed September 26, 2026

RSW airport DEN airport Return direction DEN → RSW

RSW→DEN

Right now

Route reliability

What sets this route apart

RSW to DEN against comparable routes

When it goes wrong

Will your connection be tight enough?

Best time to fly

By departure window

By departure hour

Why RSW → DEN runs late

Airlines on this route

Weekly and seasonal patterns

By day of week

By month

Reliability over time

Data and methodology