BZN to IAH flight delays & on-time performance
Nonstop flights from Bozeman Yellowstone International Airport to George Bush Intercontinental Airport · 1,385 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BZN or IAH right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Bozeman (BZN) to Houston (IAH) arrived on time 78% of the time in Aug 2025 – Jul 2026, in line with the national average.
- 1.5% were cancelled, and 6% arrived an hour or more late.
- United Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 12pm did best (90% on time); around 1pm did worst (74%).
- Sunday was the most reliable day to fly (88% on time) and Saturday the least (69%).
- The largest source of delay minutes was air traffic control & airport congestion (44%).
Which airline is most on time from BZN to IAH?
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 |
|---|---|---|---|---|---|
| United Airlines | 78% | 1.5% | 13 min | 6.3% | 65 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 12pm90%30 flights
- 1pm74%19 flights
- 2pm80%10 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday67%0.0% cancelled
- Tuesday100%0.0% cancelled
- Wednesday100%0.0% cancelled
- Thursday67%0.0% cancelled
- Friday67%0.0% cancelled
- Saturday69%0.0% cancelled
- Sunday88%3.8% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Air traffic control & airport congestion44%
- Airline (crew, maintenance, cleaning, fueling)41%
- Late-arriving aircraft15%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)100%
- Extreme weather0%
- Air traffic control & airport congestion0%
- Security0%
BZN to IAH: common questions
- How often are BZN to IAH flights on time?
- 78% 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 Bozeman to Houston cancelled?
- 1.5% of scheduled flights were cancelled (1 of 65).
- How long are typical delays?
- Across all flights the average arrival delay was 13 min (early arrivals count as zero). Flights that were late arrived 51 min behind schedule on average, and 6.3% of flights were an hour or more late.
- How long is taxi time at BZN?
- Flights on this route spent 17 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAH to BZN — 76% on time
More flights from Bozeman
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BZN → IAH, nonstop flights by US airlines that report to the DOT. How we calculate this.