IAH to BOS flight delays & on-time performance
Nonstop flights from George Bush Intercontinental Airport to Boston Logan International Airport · 1,597 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at IAH or BOS 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 Boston (BOS) arrived on time 72% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.5% were cancelled, and 13% arrived an hour or more late.
- United Airlines was the most punctual airline here (76% on time); JetBlue was the least (57%).
- Departures scheduled around 7am did best (94% on time); around 5pm did worst (52%).
- Saturday was the most reliable day to fly (79% on time) and Thursday the least (68%).
- The largest source of delay minutes was air traffic control & airport congestion (47%).
Which airline is most on time from IAH to BOS?
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 | 76% | 1.1% | 18 min | 9.7% | 1,559 |
| JetBlue | 57% | 2.8% | 40 min | 22.6% | 460 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am94%361 flights
- 9am73%215 flights
- 10am81%37 flights
- 11am79%52 flights
- 12pm62%291 flights
- 1pm63%221 flights
- 2pm57%120 flights
- 4pm67%244 flights
- 5pm52%66 flights
- 6pm70%385 flights
- 7pm75%21 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday71%3.4% cancelled
- Tuesday70%1.4% cancelled
- Wednesday72%1.7% cancelled
- Thursday68%0.3% cancelled
- Friday73%0.7% cancelled
- Saturday79%0.4% cancelled
- Sunday69%2.3% 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 congestion47%
- Late-arriving aircraft30%
- Airline (crew, maintenance, cleaning, fueling)18%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather63%
- Airline (crew, maintenance, cleaning, fueling)23%
- Air traffic control & airport congestion13%
- Security0%
IAH to BOS: common questions
- How often are IAH to BOS flights on time?
- 72% 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 Boston cancelled?
- 1.5% of scheduled flights were cancelled (30 of 2,019).
- How long are typical delays?
- Across all flights the average arrival delay was 23 min (early arrivals count as zero). Flights that were late arrived 77 min behind schedule on average, and 12.6% of flights were an hour or more late.
- How long is taxi time at IAH?
- Flights on this route spent 23 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BOS to IAH — 81% 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 → BOS, nonstop flights by US airlines that report to the DOT. How we calculate this.