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Route on-time record

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

Rapid City (Rapid City Regional Airport) to Denver (Denver International Airport). 2,908 nonstop flights in Jun 2025 to May 2026, 78% arrived within 15 minutes and 1.4% were cancelled. The most reliable flight number was SkyWest 5742 at 1:00 PM.

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

RAP → DEN

Rapid City to Denver: 2,908 nonstop flights a year

On time (12 months)

78%

Cancelled

1.4%

avg delay 19 min

Best time to leave

Noon to 3 PM

90% on time vs 62% 3 to 6 PM

Most reliable airline

United

80% chance on time

Check RAP 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 5742 · sold as United Express, Delta Connection, American Eagle or Alaska

    1:00 PM → 2:32 PM1h 32m nonstop

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

    90%

    chance on time

    On time (history)
    92%
    Cancelled
    1.0%
    Avg arrival delay
    9 min
    • Arrived on time 92% of the time (305 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Noon to 3 PM: 90% on time; 3 to 6 PM: 62%).
    • 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 · 305 flights

    Find 1:00 PM flight fares Opens this date on Aviasales

  2. #2 · United 1720

    5:00 AM → 6:25 AM1h 25m nonstop

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

    87%

    chance on time

    On time (history)
    90%
    Cancelled
    0.0%
    Avg arrival delay
    19 min
    • Arrived on time 90% of the time (10 flights, Jun 2025 to May 2026).
    • Short track record (10 flights), so its score leans on the airline's record at this hour.

    Limited track record · 10 flights

    Find United 1720 fares Opens this date on Aviasales

  3. #3 · SkyWest 5576 · sold as United Express, Delta Connection, American Eagle or Alaska

    5:20 AM → 6:41 AM1h 41m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    86%

    chance on time

    On time (history)
    87%
    Cancelled
    0.3%
    Avg arrival delay
    20 min
    • Arrived on time 87% of the time (347 flights, Jun 2025 to May 2026).

    Strong track record · 347 flights

    Find 5:20 AM flight fares Opens this date on Aviasales

  4. #4 · United 2030

    2:35 PM → 4:08 PM1h 33m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    85%

    chance on time

    On time (history)
    90%
    Cancelled
    4.8%
    Avg arrival delay
    2 min
    • Arrived on time 90% of the time (20 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Noon to 3 PM: 90% on time; 3 to 6 PM: 62%).
    • Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
    • Short track record (20 flights), so its score leans on the airline's record at this hour.

    Limited track record · 20 flights

    Find United 2030 fares Opens this date on Aviasales

  5. #5 · United 1829

    11:20 AM → 12:48 PM1h 28m nonstop

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

    85%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    1 min
    • Arrived on time 100% of the time (11 flights, Jun 2025 to May 2026).
    • Short track record (11 flights), so its score leans on the airline's record at this hour.

    Limited track record · 11 flights

    Find United 1829 fares Opens this date on Aviasales

  6. #6 · SkyWest 5359 · sold as United Express, Delta Connection, American Eagle or Alaska

    12:00 PM → 1:32 PM1h 32m nonstop

    Local times, typical schedule. Last flown 2026-04-29. Same departure also flew as SkyWest 5302; its record covers all of them.

    84%

    chance on time

    On time (history)
    87%
    Cancelled
    5.4%
    Avg arrival delay
    18 min
    • Arrived on time 87% of the time (53 flights, Jun 2025 to May 2026).
    • Cancelled 5.4% of the time (3 of 56).
    • Leaves in this route's most on-time window (Noon to 3 PM: 90% on time; 3 to 6 PM: 62%).
    • Short track record (53 flights), so its score leans on the airline's record at this hour.

    Limited track record · 53 flights

    Find 12:00 PM flight fares Opens this date on Aviasales

  7. #7 · United 1126

    2:47 PM → 4:20 PM1h 33m nonstop

    Local times, typical schedule. Last flown 2026-04-29.

    83%

    chance on time

    On time (history)
    85%
    Cancelled
    1.8%
    Avg arrival delay
    14 min
    • Arrived on time 85% of the time (55 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Noon to 3 PM: 90% on time; 3 to 6 PM: 62%).
    • Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
    • Short track record (55 flights), so its score leans on the airline's record at this hour.

    Limited track record · 55 flights

    Find United 1126 fares Opens this date on Aviasales

  8. #8 · United 1767

    7:00 AM → 8:28 AM1h 29m nonstop

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

    82%

    chance on time

    On time (history)
    82%
    Cancelled
    0.9%
    Avg arrival delay
    11 min
    • Arrived on time 82% of the time (325 flights, Jun 2025 to May 2026).

    Strong track record · 325 flights

    Find United 1767 fares Opens this date on Aviasales

  9. #9 · SkyWest 5456 · sold as United Express, Delta Connection, American Eagle or Alaska

    10:00 AM → 11:40 AM1h 40m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    79%

    chance on time

    On time (history)
    82%
    Cancelled
    1.7%
    Avg arrival delay
    16 min
    • Arrived on time 82% of the time (117 flights, Jun 2025 to May 2026).

    Moderate track record · 117 flights

    Find 10:00 AM flight fares Opens this date on Aviasales

  10. #10 · SkyWest 5671 · sold as United Express, Delta Connection, American Eagle or Alaska

    5:41 PM → 7:24 PM1h 43m nonstop

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

    75%

    chance on time

    On time (history)
    84%
    Cancelled
    3.0%
    Avg arrival delay
    15 min
    • Arrived on time 84% of the time (97 flights, Jun 2025 to May 2026).
    • Cancelled 3.0% of the time (3 of 100).
    • Leaves in this route's least on-time window (3 to 6 PM: 62% on time; Noon to 3 PM: 90%).
    • Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.

    Moderate track record · 97 flights

    Find 5:41 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines80%

    736 flights · 81% on time as flown · 0.9% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)76%

    2,172 flights · 77% on time as flown · 1.6% cancel

On time by departure time

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

  • Before 9 AM79%

    1,069 flights · avg delay 18 min

  • 9 AM to noon83%

    594 flights · avg delay 11 min

  • Noon to 3 PM90%

    515 flights · avg delay 10 min

  • 3 to 6 PM62%

    680 flights · avg delay 35 min

Best day: Tuesday (81%). Worst: Friday (77%).

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
85
A
76
M
79
J
69
J
71
A
76
S
86
O
82
N
82
D
80

What delays this route

  • Airline (crew, maintenance, boarding)37%
  • Air traffic control and airport volume26%
  • Late-arriving aircraft23%
  • Severe weather13%

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

RAP to DEN questions

What time of day is best to fly RAP to DEN?
Noon to 3 PM: 90% of flights arrived on time, against 62% for departures 3 to 6 PM.
Which airline is most on time from RAP to DEN?
United, with a season-adjusted 80% chance of operating and arriving on time over 736 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 RAP to DEN?
June (69% 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 RAP

Live status: FAA delays and ground stops