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Route on-time record

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

Birmingham (Birmingham-Shuttlesworth International Airport) to Denver (Denver International Airport). 1,166 nonstop flights in Jun 2025 to May 2026, 84% arrived within 15 minutes and 0.2% were cancelled. The most reliable flight number was Southwest 765 at 5:15 AM.

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

BHM → DEN

Birmingham to Denver: 1,166 nonstop flights a year

On time (12 months)

84%

Cancelled

0.2%

avg delay 13 min

Best time to leave

Before 9 AM

91% on time vs 53% 6 to 9 PM

Most reliable airline

United

84% chance on time

Check BHM 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 · Southwest 765

    5:15 AM → 7:10 AM2h 55m nonstop

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

    93%

    chance on time

    On time (history)
    98%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 98% of the time (46 flights, Jun 2025 to May 2026).
    • Never cancelled in 46 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 53%).
    • Short track record (46 flights), so its score leans on the airline's record at this hour.

    Limited track record · 46 flights

    Find Southwest 765 fares Opens this date on Aviasales

  2. #2 · SkyWest 5295 · sold as United Express, Delta Connection, American Eagle or Alaska

    8:00 AM → 10:27 AM3h 27m nonstop

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

    89%

    chance on time

    On time (history)
    90%
    Cancelled
    0.3%
    Avg arrival delay
    8 min
    • Arrived on time 90% of the time (341 flights, Jun 2025 to May 2026).
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 53%).

    Strong track record · 341 flights

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

  3. #3 · Southwest 699

    5:00 AM → 7:05 AM3h 05m nonstop

    Local times, typical schedule. Last flown 2026-04-06.

    88%

    chance on time

    On time (history)
    88%
    Cancelled
    0.0%
    Avg arrival delay
    9 min
    • Arrived on time 88% of the time (33 flights, Jun 2025 to May 2026).
    • Never cancelled in 33 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 53%).
    • Short track record (33 flights), so its score leans on the airline's record at this hour.

    Limited track record · 33 flights

    Find Southwest 699 fares Opens this date on Aviasales

  4. #4 · Southwest 2215

    12:40 PM → 2:40 PM3h 00m nonstop

    Local times, typical schedule. Last flown 2026-05-30.

    86%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    1 min
    • Arrived on time 100% of the time (8 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.
    • Short track record (8 flights), so its score leans on the airline's record at this hour.

    Limited track record · 8 flights

    Find Southwest 2215 fares Opens this date on Aviasales

  5. #5 · United 1193

    3:52 PM → 6:10 PM3h 18m nonstop

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

    84%

    chance on time

    On time (history)
    90%
    Cancelled
    0.0%
    Avg arrival delay
    13 min
    • Arrived on time 90% of the time (20 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.
    • Short track record (20 flights), so its score leans on the airline's record at this hour.

    Limited track record · 20 flights

    Find United 1193 fares Opens this date on Aviasales

  6. #6 · United 447

    3:40 PM → 5:54 PM3h 14m nonstop

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

    81%

    chance on time

    On time (history)
    82%
    Cancelled
    0.0%
    Avg arrival delay
    16 min
    • Arrived on time 82% of the time (11 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.
    • Short track record (11 flights), so its score leans on the airline's record at this hour.

    Limited track record · 11 flights

    Find United 447 fares Opens this date on Aviasales

  7. #7 · SkyWest 4690 · sold as United Express, Delta Connection, American Eagle or Alaska

    3:41 PM → 6:07 PM3h 26m nonstop

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

    79%

    chance on time

    On time (history)
    79%
    Cancelled
    0.3%
    Avg arrival delay
    20 min
    • Arrived on time 79% of the time (326 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 · 326 flights

    Find 3:41 PM flight fares Opens this date on Aviasales

  8. #8 · Southwest 3667

    6:20 PM → 8:15 PM2h 55m nonstop

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

    66%

    chance on time

    On time (history)
    59%
    Cancelled
    0.0%
    Avg arrival delay
    17 min
    • Arrived on time 59% of the time (39 flights, Jun 2025 to May 2026).
    • Never cancelled in 39 scheduled flights.
    • Leaves in this route's least on-time window (6 to 9 PM: 53% on time; Before 9 AM: 91%).
    • Short track record (39 flights), so its score leans on the airline's record at this hour.

    Limited track record · 39 flights

    Find Southwest 3667 fares Opens this date on Aviasales

  9. #9 · Southwest 1652

    5:55 PM → 7:55 PM3h 00m nonstop

    Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 2691; its record covers all of them.

    64%

    chance on time

    On time (history)
    50%
    Cancelled
    0.0%
    Avg arrival delay
    47 min
    • Arrived on time 50% of the time (36 flights, Jun 2025 to May 2026).
    • Never cancelled in 36 scheduled flights.
    • Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
    • 55% of its delay minutes came from the plane arriving late from an earlier flight.

    Limited track record · 36 flights

    Find Southwest 1652 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • United Airlines84%

    31 flights · 87% on time as flown · 0.1% cancel

  • SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)84%

    697 flights · 84% on time as flown · 0.3% cancel

  • Southwest Airlines82%

    438 flights · 82% on time as flown · 0.0% cancel

On time by departure time

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

  • Before 9 AM91%

    526 flights · avg delay 7 min

  • 9 AM to noon83%

    163 flights · avg delay 10 min

  • Noon to 3 PM82%

    38 flights · avg delay 7 min

  • 3 to 6 PM77%

    401 flights · avg delay 21 min

  • 6 to 9 PM53%

    38 flights · avg delay 29 min

Best day: Wednesday (86%). Worst: Sunday (81%).

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
85
F
88
M
87
A
85
M
79
J
73
J
74
A
80
S
85
O
88
N
87
D
86

What delays this route

  • Airline (crew, maintenance, boarding)39%
  • Air traffic control and airport volume34%
  • Late-arriving aircraft25%
  • Severe weather2%

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

BHM to DEN questions

What time of day is best to fly BHM to DEN?
Before 9 AM: 91% of flights arrived on time, against 53% 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 BHM to DEN?
United, with a season-adjusted 84% chance of operating and arriving on time over 31 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 BHM to DEN?
June (73% on time); the best was February (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.

More routes from BHM

Live status: FAA delays and ground stops