BOS to IAH flight delays & on-time performance
Nonstop flights from Boston Logan International Airport to George Bush Intercontinental Airport · 1,597 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BOS or IAH right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Boston (BOS) to Houston (IAH) arrived on time 81% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.7% were cancelled, and 7% arrived an hour or more late.
- United Airlines was the most punctual airline here (83% on time); JetBlue was the least (72%).
- Departures scheduled around 7am did best (93% on time); around 5pm did worst (63%).
- Wednesday was the most reliable day to fly (85% on time) and Thursday the least (77%).
- The largest source of delay minutes was late-arriving aircraft (46%).
Which airline is most on time from BOS 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 | 83% | 1.4% | 13 min | 5.9% | 1,561 |
| JetBlue | 72% | 2.6% | 17 min | 9.2% | 460 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am93%71 flights
- 6am92%36 flights
- 7am93%380 flights
- 8am85%99 flights
- 9am82%228 flights
- 10am83%132 flights
- 11am91%58 flights
- 12pm58%54 flights
- 1pm88%304 flights
- 2pm58%56 flights
- 3pm70%320 flights
- 4pm85%80 flights
- 5pm63%203 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday83%4.0% cancelled
- Tuesday81%2.9% cancelled
- Wednesday85%3.2% cancelled
- Thursday77%0.7% cancelled
- Friday78%0.0% cancelled
- Saturday81%0.4% cancelled
- Sunday83%0.7% 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 aircraft46%
- Air traffic control & airport congestion29%
- Airline (crew, maintenance, cleaning, fueling)24%
- Extreme weather2%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather62%
- Airline (crew, maintenance, cleaning, fueling)21%
- Air traffic control & airport congestion18%
- Security0%
BOS to IAH: common questions
- How often are BOS to IAH flights on time?
- 81% 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 Boston to Houston cancelled?
- 1.7% of scheduled flights were cancelled (34 of 2,021).
- How long are typical delays?
- Across all flights the average arrival delay was 14 min (early arrivals count as zero). Flights that were late arrived 67 min behind schedule on average, and 6.7% of flights were an hour or more late.
- How long is taxi time at BOS?
- Flights on this route spent 19 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IAH to BOS — 72% on time
More flights from Boston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BOS → IAH, nonstop flights by US airlines that report to the DOT. How we calculate this.