DEN to BHM flight delays & on-time performance
Nonstop flights from Denver International Airport to Birmingham-Shuttlesworth International Airport · 1,083 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DEN or BHM right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Denver (DEN) to Birmingham (BHM) arrived on time 74% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.4% were cancelled, and 8% arrived an hour or more late.
- SkyWest Airlines was the most punctual airline here (80% on time); Southwest Airlines was the least (66%).
- Departures scheduled around 11am did best (93% on time); around 7pm did worst (45%).
- Tuesday was the most reliable day to fly (80% on time) and Friday the least (68%).
- The largest source of delay minutes was late-arriving aircraft (47%).
Which airline is most on time from DEN to BHM?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 80% | 0.3% | 13 min | 5.1% | 635 |
| United Airlines | 74% | 0.0% | 16 min | 6.5% | 92 |
| Southwest Airlines | 66% | 0.6% | 20 min | 11.1% | 491 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am79%19 flights
- 10am78%449 flights
- 11am93%40 flights
- 1pm76%17 flights
- 4pm69%68 flights
- 5pm78%406 flights
- 6pm65%26 flights
- 7pm45%101 flights
- 8pm54%59 flights
- 9pm78%23 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday74%1.1% cancelled
- Tuesday80%0.0% cancelled
- Wednesday73%0.0% cancelled
- Thursday69%0.6% cancelled
- Friday68%0.6% cancelled
- Saturday77%0.6% cancelled
- Sunday76%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft47%
- Airline (crew, maintenance, cleaning, fueling)35%
- Air traffic control & airport congestion14%
- Extreme weather4%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather80%
- Air traffic control & airport congestion20%
- Airline (crew, maintenance, cleaning, fueling)0%
- Security0%
DEN to BHM: common questions
- How often are DEN to BHM flights on time?
- 74% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Denver to Birmingham cancelled?
- 0.4% of scheduled flights were cancelled (5 of 1,218).
- How long are typical delays?
- Across all flights the average arrival delay was 16 min (early arrivals count as zero). Flights that were late arrived 57 min behind schedule on average, and 7.6% of flights were an hour or more late.
- How long is taxi time at DEN?
- Flights on this route spent 22 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BHM to DEN — 83% on time
More flights from Denver
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DEN → BHM, nonstop flights by US airlines that report to the DOT. How we calculate this.