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Route on-time record

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

Denver (Denver International Airport) to Billings (Billings Logan International Airport). 1,786 nonstop flights in Jun 2025 to May 2026, 79% arrived within 15 minutes and 0.8% were cancelled. The most reliable flight number was SkyWest 4762 at 8:00 AM.

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

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DEN → BIL

Denver to Billings: 1,786 nonstop flights a year

On time (12 months)

79%

Cancelled

0.8%

avg delay 14 min

Best time to leave

Before 9 AM

88% on time vs 72% 6 to 9 PM

Most reliable airline

SkyWest

79% chance on time

Check DEN to BIL 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 4762 · sold as United Express, Delta Connection, American Eagle or Alaska

    8:00 AM → 9:40 AM1h 40m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as SkyWest 5211; its record covers all of them.

    84%

    chance on time

    On time (history)
    86%
    Cancelled
    0.0%
    Avg arrival delay
    7 min
    • Arrived on time 86% of the time (109 flights, Jun 2025 to May 2026).
    • Never cancelled in 109 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 88% on time; 6 to 9 PM: 72%).
    • Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).

    Moderate track record · 109 flights

    Find 8:00 AM flight fares Opens this date on Aviasales

  2. #2 · SkyWest 5845 · sold as United Express, Delta Connection, American Eagle or Alaska

    1:45 PM → 3:29 PM1h 44m nonstop

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

    79%

    chance on time

    On time (history)
    83%
    Cancelled
    0.0%
    Avg arrival delay
    12 min
    • Arrived on time 83% of the time (46 flights, Jun 2025 to May 2026).
    • Never cancelled in 46 scheduled flights.
    • Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).

    Limited track record · 46 flights

    Find 1:45 PM flight fares Opens this date on Aviasales

  3. #3 · United 703

    11:45 AM → 1:23 PM1h 38m nonstop

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

    79%

    chance on time

    On time (history)
    81%
    Cancelled
    0.0%
    Avg arrival delay
    10 min
    • Arrived on time 81% of the time (273 flights, Jun 2025 to May 2026).
    • Never cancelled in 274 scheduled flights.
    • Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).

    Strong track record · 273 flights

    Find United 703 fares Opens this date on Aviasales

  4. #4 · United 1417

    7:20 PM → 8:57 PM1h 37m nonstop

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

    79%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    14 min
    • Arrived on time 82% of the time (217 flights, Jun 2025 to May 2026).
    • Never cancelled in 217 scheduled flights.
    • Leaves in this route's least on-time window (6 to 9 PM: 72% on time; Before 9 AM: 88%).
    • Departs inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.

    Strong track record · 217 flights

    Find United 1417 fares Opens this date on Aviasales

  5. #5 · SkyWest 5257 · sold as United Express, Delta Connection, American Eagle or Alaska

    9:03 PM → 10:45 PM1h 42m nonstop

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

    77%

    chance on time

    On time (history)
    76%
    Cancelled
    0.9%
    Avg arrival delay
    14 min
    • Arrived on time 76% of the time (208 flights, Jun 2025 to May 2026).
    • Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).

    Strong track record · 208 flights

    Find 9:03 PM flight fares Opens this date on Aviasales

  6. #6 · SkyWest 5498 · sold as United Express, Delta Connection, American Eagle or Alaska

    3:35 PM → 5:16 PM1h 41m nonstop

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

    74%

    chance on time

    On time (history)
    76%
    Cancelled
    2.6%
    Avg arrival delay
    15 min
    • Arrived on time 76% of the time (292 flights, Jun 2025 to May 2026).
    • Departs inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.

    Strong track record · 292 flights

    Find 3:35 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)79%

    1,056 flights · 80% on time as flown · 1.3% cancel

  • United Airlines76%

    730 flights · 77% on time as flown · 0.1% cancel

On time by departure time

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

  • Before 9 AM88%

    362 flights · avg delay 8 min

  • 9 AM to noon78%

    365 flights · avg delay 11 min

  • Noon to 3 PM75%

    155 flights · avg delay 16 min

  • 3 to 6 PM76%

    322 flights · avg delay 15 min

  • 6 to 9 PM72%

    415 flights · avg delay 22 min

  • After 9 PM84%

    167 flights · avg delay 8 min

Best day: Wednesday (83%). Worst: Thursday (75%).

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
73
F
76
M
80
A
83
M
79
J
67
J
64
A
68
S
87
O
88
N
85
D
86

What delays this route

  • Late-arriving aircraft48%
  • Airline (crew, maintenance, boarding)35%
  • Air traffic control and airport volume13%
  • Severe weather4%

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 DEN to BIL…

DEN to BIL questions

What time of day is best to fly DEN to BIL?
Before 9 AM: 88% of flights arrived on time, against 72% 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 DEN to BIL?
SkyWest, with a season-adjusted 79% chance of operating and arriving on time over 1,056 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 DEN to BIL?
July (64% on time); the best was October (88%), 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.

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Live status: FAA delays and ground stops