IAH to BHM flight delays & on-time performance
Nonstop flights from George Bush Intercontinental Airport to Birmingham-Shuttlesworth International Airport · 562 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at IAH or BHM right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Houston (IAH) to Birmingham (BHM) arrived on time 80% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.1% were cancelled, and 7% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 12pm did best (84% on time); around 7am did worst (76%).
- Thursday was the most reliable day to fly (100% on time) and Monday the least (64%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (52%).
Which airline is most on time from IAH 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% | 1.1% | 12 min | 6.6% | 92 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am76%33 flights
- 12pm84%57 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday64%0.0% cancelled
- Tuesday72%0.0% cancelled
- Wednesday92%0.0% cancelled
- Thursday100%0.0% cancelled
- Friday67%0.0% cancelled
- Saturday82%0.0% cancelled
- Sunday91%8.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)52%
- Late-arriving aircraft46%
- Air traffic control & airport congestion2%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
IAH to BHM: common questions
- How often are IAH to BHM flights on time?
- 80% 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 Houston to Birmingham cancelled?
- 1.1% of scheduled flights were cancelled (1 of 92).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 53 min behind schedule on average, and 6.6% of flights were an hour or more late.
- How long is taxi time at IAH?
- Flights on this route spent 25 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BHM to IAH — 80% on time
More flights from Houston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: IAH → BHM, nonstop flights by US airlines that report to the DOT. How we calculate this.