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Route · FSD → DEN · 2020–2025 BTS data

Sioux Falls to Denver

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), FSD to DEN (Sioux Falls to Denver) ranks #1380 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

80.9%
On-time
+1.9 pts
vs US avg
83 min
Delay when late
8,751
Flights
#1380 of 4927
Corpus placement

Cancelled

1.1%

Best Month

Sep 2024 89%

Worst Month

Jun 2025 65%

Distance

483 mi

Carriers

9

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 132 44 5 0 F9,UA,OO
Nov 2025 131 21 3 0 OO,UA,F9
Oct 2025 161 24 0 1 OO,UA,F9
Sep 2025 159 30 1 0 UA,OO,F9
Aug 2025 185 54 2 2 OO,F9,UA
Jul 2025 197 68 4 2 OO,UA,F9
Jun 2025 172 61 1 1 OO,UA,F9
May 2025 164 49 4 2 OO,UA,F9
Apr 2025 149 38 1 2 F9,OO,UA
Mar 2025 136 22 0 0 OO,UA,F9
Feb 2025 118 34 0 0 OO,UA,F9
Jan 2025 135 33 0 0 OO,UA,F9
Dec 2024 137 23 1 0 F9,OO,UA
Nov 2024 138 31 3 0 OO,UA,F9
Oct 2024 155 23 0 0 UA,OO,F9
Sep 2024 149 16 0 0 OO,UA,F9
Aug 2024 151 25 1 0 F9,OO,UA
Jul 2024 150 25 3 0 F9,OO,UA
Jun 2024 145 32 0 1 F9,OO,UA
May 2024 142 23 1 1 F9,OO,UA
Apr 2024 137 17 1 0 F9,OO,UA
Mar 2024 143 16 2 0 F9,OO,UA
Feb 2024 131 26 2 1 F9,OO,UA
Jan 2024 134 38 4 0 F9,OO,UA

FSD–DEN seasonal on-time pattern

Best: September (86.8%) · weakest: July (76.0%)

75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 78.2%

Strongest calendar month

September

86.8% on-time · ~131 flights/mo

Busiest calendar month

August

~139 flights/mo avg

Weakest calendar month

July

76.0% on-time · ~134 flights/mo

Cancellation Rate

1.1%

39 of 3,551 flights

Diversion Rate

0.4%

13 of 3,551 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

FSD - Sioux Falls

Full on-time, delay-cause, and seasonal performance for Sioux Falls, SD.

FSD on-time profile

DEN - Denver

Full on-time, delay-cause, and seasonal performance for Denver, CO.

DEN on-time profile

Compare the two airports

See FSD and DEN side by side on delays, cancellations, and reliability.

Compare FSD vs DEN

Origin-hub reliability standing

Mid-pack among FSD departures

From FSD, this corridor sits with 6 other 75–85% on-time routes out of 8 tracked departures, not the hub's reliability leaders (2 at ≥85%) and not the softest ( 0 below 75%). Destination: Denver · fleet on-time rank #2778 of 4927.

What the Data Says About FSD to DEN

8,751 tracked flights put the FSD to DEN pairing (Sioux Falls to Denver) at a 80.9% on-time rate, squarely in line with the wider network. Delays that do occur run 82.6 minutes on average. Across the 483-mile route and its 9 carriers, the trailing 24 months show 1.1% cancelled and 0.4% diverted (3,551 flights sampled).

The monthly split is wide on this route: Sep 2024 posted the strongest performance at 89% on-time, while Jun 2025 came in at just 65% - a 25-point swing worth factoring into travel timing.

On the multi-year calendar, FSD–DEN peaks in September at 86.8% on-time while August carries the heaviest traffic (~139 flights per month) ; the softest month is July at 76.0%, a 10.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does FSD to DEN rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, FSD to DEN ranks #1380 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from FSD to DEN? ▼
Flights from Sioux Falls to Denver have a 80.9% on-time rate based on 8,751 flights. The average delay is 82.6 minutes. The best recent month was Sep 2024 with 89% on-time.
What is the cancellation rate for FSD to DEN? ▼
Over the last 24 months, 1.1% of flights on this route were cancelled (39 of 3,551 flights) and 0.4% were diverted.
How far is the flight from FSD to DEN? ▼
The flight distance from Sioux Falls (FSD) to Denver (DEN) is approximately 483 miles. This route is served by 9 carriers.
When is the best time to fly from FSD to DEN? ▼
The best recent month for on-time performance was Sep 2024 (89% on-time). The worst was Jun 2025 (65% on-time). Consider booking during months with historically better performance.

Airports on this route

FSD Airport

Sioux Falls
DEN Airport

Denver
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using FSD–DEN data

FSD–DEN is mid-pack at 80.9% on-time; month and carrier mix move more than the corridor headline.

  • Compare FSD and DEN airport profiles: delay causes and top routes differ even on the same corridor. FSD airport
  • If your dates flex, September (86.8% on-time) beats July (76.0%) on this corridor. Seasonal chart
  • 4 other routes post a similar 80.9% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.