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Route on-time record

FSD to DEN: most on-time flights and the best time to fly

Sioux Falls (Sioux Falls Regional Airport) to Denver (Denver International Airport). 1,824 nonstop flights in Jun 2025 to May 2026, 77% arrived within 15 minutes and 1.4% were cancelled. The most reliable flight number was SkyWest 5701 at 6:00 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

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FSD → DEN

Sioux Falls to Denver: 1,824 nonstop flights a year

On time (12 months)

77%

Cancelled

1.4%

avg delay 21 min

Best time to leave

Before 9 AM

88% on time vs 50% 6 to 9 PM

Most reliable airline

SkyWest

80% chance on time

Check FSD to DEN fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · SkyWest 5701 · sold as United Express, Delta Connection, American Eagle or Alaska

    6:00 AM → 6:58 AM1h 58m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    88%

    chance on time

    On time (history)
    91%
    Cancelled
    2.1%
    Avg arrival delay
    14 min
    • Arrived on time 91% of the time (328 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 88% on time; 6 to 9 PM: 50%).

    Strong track record · 328 flights

    Find 6:00 AM flight fares Opens this date on Aviasales

  2. #2 · SkyWest 5492 · sold as United Express, Delta Connection, American Eagle or Alaska

    1:43 PM → 2:40 PM1h 57m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    88%

    chance on time

    On time (history)
    89%
    Cancelled
    0.8%
    Avg arrival delay
    13 min
    • Arrived on time 89% of the time (357 flights, Jun 2025 to May 2026).
    • Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.

    Strong track record · 357 flights

    Find 1:43 PM flight fares Opens this date on Aviasales

  3. #3 · SkyWest 5319 · sold as United Express, Delta Connection, American Eagle or Alaska

    11:25 AM → 12:17 PM1h 52m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as SkyWest 5572; its record covers all of them.

    85%

    chance on time

    On time (history)
    85%
    Cancelled
    0.0%
    Avg arrival delay
    5 min
    • Arrived on time 85% of the time (26 flights, Jun 2025 to May 2026).
    • Short track record (26 flights), so its score leans on the airline's record at this hour.

    Limited track record · 26 flights

    Find 11:25 AM flight fares Opens this date on Aviasales

  4. #4 · Frontier 2107

    8:54 PM → 9:49 PM1h 52m nonstop

    Local times, typical schedule. Last flown 2026-05-29.

    68%

    chance on time

    On time (history)
    68%
    Cancelled
    0.0%
    Avg arrival delay
    49 min
    • Arrived on time 68% of the time (87 flights, Jun 2025 to May 2026).
    • Never cancelled in 87 scheduled flights.
    • Leaves in this route's least on-time window (6 to 9 PM: 50% on time; Before 9 AM: 88%).

    Moderate track record · 87 flights

    Find Frontier 2107 fares Opens this date on Aviasales

  5. #5 · United 2742

    9:05 AM → 10:01 AM1h 56m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    67%

    chance on time

    On time (history)
    76%
    Cancelled
    1.8%
    Avg arrival delay
    13 min
    • Arrived on time 76% of the time (107 flights, Jun 2025 to May 2026).

    Moderate track record · 107 flights

    Find United 2742 fares Opens this date on Aviasales

  6. #6 · SkyWest 5848 · sold as United Express, Delta Connection, American Eagle or Alaska

    4:57 PM → 6:11 PM2h 13m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    66%

    chance on time

    On time (history)
    66%
    Cancelled
    1.7%
    Avg arrival delay
    31 min
    • Arrived on time 66% of the time (351 flights, Jun 2025 to May 2026).
    • Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.

    Strong track record · 351 flights

    Find 4:57 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)80%

    1,294 flights · 81% on time as flown · 1.5% cancel

  • Frontier Airlines70%

    165 flights · 67% on time as flown · 0.7% cancel

  • United Airlines66%

    365 flights · 66% on time as flown · 1.6% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM88%

    416 flights · avg delay 15 min

  • 9 AM to noon74%

    475 flights · avg delay 15 min

  • Noon to 3 PM87%

    437 flights · avg delay 17 min

  • 3 to 6 PM66%

    380 flights · avg delay 31 min

  • 6 to 9 PM50%

    116 flights · avg delay 53 min

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
78
F
81
M
84
A
81
M
77
J
70
J
72
A
78
S
86
O
85
N
80
D
76

What delays this route

  • Air traffic control and airport volume34%
  • Airline (crew, maintenance, boarding)32%
  • Late-arriving aircraft22%
  • Severe weather12%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

Finding the most reliable connections from FSD to DEN…

FSD to DEN questions

What time of day is best to fly FSD to DEN?
Before 9 AM: 88% of flights arrived on time, against 50% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from FSD to DEN?
SkyWest, with a season-adjusted 80% chance of operating and arriving on time over 1,294 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on FSD to DEN?
June (70% on time); the best was September (86%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from FSD

Live status: FAA delays and ground stops