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Route · DEN → FSD · 2020–2025 BTS data

Denver to Sioux Falls

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DEN to FSD (Denver to Sioux Falls) ranks #1378 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

80.2%
On-time
+1.2 pts
vs US avg
74 min
Delay when late
8,756
Flights
#1378 of 4927
Corpus placement

Cancelled

0.9%

Best Month

Oct 2025 91%

Worst Month

Jun 2025 69%

Distance

483 mi

Carriers

9

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 132 34 5 0 F9,UA,OO
Nov 2025 131 15 2 0 OO,UA,F9
Oct 2025 161 14 0 0 OO,UA,F9
Sep 2025 159 25 0 1 UA,OO,F9
Aug 2025 185 53 2 0 OO,F9,UA
Jul 2025 197 56 2 2 OO,UA,F9
Jun 2025 173 53 1 0 OO,UA,F9
May 2025 164 39 3 1 OO,UA,F9
Apr 2025 149 33 1 0 F9,OO,UA
Mar 2025 136 21 0 0 OO,UA,F9
Feb 2025 118 25 0 0 OO,UA,F9
Jan 2025 135 34 0 0 OO,UA,F9
Dec 2024 136 21 1 2 F9,OO,UA
Nov 2024 138 24 3 0 OO,UA,F9
Oct 2024 155 19 0 0 UA,OO,F9
Sep 2024 149 20 0 0 OO,UA,F9
Aug 2024 151 28 1 0 F9,OO,UA
Jul 2024 150 32 3 1 F9,OO,UA
Jun 2024 145 31 0 2 F9,OO,UA
May 2024 142 34 1 0 F9,OO,UA
Apr 2024 137 35 0 1 F9,OO,UA
Mar 2024 143 26 2 0 F9,OO,UA
Feb 2024 131 26 2 0 F9,OO,UA
Jan 2024 134 20 3 0 F9,OO,UA

DEN–FSD seasonal on-time pattern

Best: October (86.6%) · weakest: July (73.9%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 81.3%

Strongest calendar month

October

86.6% on-time · ~134 flights/mo

Busiest calendar month

August

~139 flights/mo avg

Weakest calendar month

July

73.9% on-time · ~134 flights/mo

Cancellation Rate

0.9%

32 of 3,551 flights

Diversion Rate

0.3%

10 of 3,551 flights

Explore origin & destination

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

DEN - Denver

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

DEN on-time profile

FSD - Sioux Falls

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

FSD on-time profile

Compare the two airports

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

Compare DEN vs FSD

Origin-hub reliability standing

Mid-pack among DEN departures

From DEN, this corridor sits with 133 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 27 below 75%). Destination: Sioux Falls · fleet on-time rank #3059 of 4927.

What the Data Says About DEN to FSD

8,756 tracked flights put the DEN to FSD pairing (Denver to Sioux Falls) at a 80.2% on-time rate, squarely in line with the wider network. Delays that do occur run 73.9 minutes on average. Across the 483-mile route and its 9 carriers, the trailing 24 months show 0.9% cancelled and 0.3% diverted (3,551 flights sampled).

The monthly split is wide on this route: Oct 2025 posted the strongest performance at 91% on-time, while Jun 2025 came in at just 69% - a 22-point swing worth factoring into travel timing.

On the multi-year calendar, DEN–FSD peaks in October at 86.6% on-time while August carries the heaviest traffic (~139 flights per month) ; the softest month is July at 73.9%, a 12.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does DEN to FSD rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, DEN to FSD ranks #1378 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 DEN to FSD? ▼
Flights from Denver to Sioux Falls have a 80.2% on-time rate based on 8,756 flights. The average delay is 73.9 minutes. The best recent month was Oct 2025 with 91% on-time.
What is the cancellation rate for DEN to FSD? ▼
Over the last 24 months, 0.9% of flights on this route were cancelled (32 of 3,551 flights) and 0.3% were diverted.
How far is the flight from DEN to FSD? ▼
The flight distance from Denver (DEN) to Sioux Falls (FSD) is approximately 483 miles. This route is served by 9 carriers.
When is the best time to fly from DEN to FSD? ▼
The best recent month for on-time performance was Oct 2025 (91% on-time). The worst was Jun 2025 (69% on-time). Consider booking during months with historically better performance.

Airports on this route

DEN Airport

Denver
FSD Airport

Sioux Falls
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 DEN–FSD data

DEN–FSD is mid-pack at 80.2% on-time; month and carrier mix move more than the corridor headline.

  • Compare DEN and FSD airport profiles: delay causes and top routes differ even on the same corridor. DEN airport
  • If your dates flex, October (86.6% on-time) beats July (73.9%) on this corridor. Seasonal chart
  • 4 other routes post a similar 80.2% 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.