IAH to TUL flight delays & on-time performance
Nonstop flights from George Bush Intercontinental Airport to Tulsa International Airport · 429 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at IAH or TUL 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 Tulsa (TUL) arrived on time 82% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.4% were cancelled, and 6% arrived an hour or more late.
- SkyWest Airlines was the most punctual airline here (84% on time); United Airlines was the least (78%).
- Departures scheduled around 7am did best (86% on time); around 6pm did worst (67%).
- Wednesday was the most reliable day to fly (89% on time) and Friday the least (77%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (45%).
Which airline is most on time from IAH to TUL?
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. | 84% | 0.3% | 11 min | 6.3% | 778 |
| United Airlines | 78% | 0.6% | 14 min | 6.2% | 309 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am86%356 flights
- 11am84%105 flights
- 12pm85%240 flights
- 2pm85%108 flights
- 6pm67%63 flights
- 7pm71%85 flights
- 8pm76%114 flights
- 9pm85%13 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday81%0.0% cancelled
- Tuesday84%0.0% cancelled
- Wednesday89%0.6% cancelled
- Thursday84%0.0% cancelled
- Friday77%0.6% cancelled
- Saturday79%0.7% 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.
- Airline (crew, maintenance, cleaning, fueling)45%
- Late-arriving aircraft39%
- Air traffic control & airport congestion10%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather75%
- Airline (crew, maintenance, cleaning, fueling)25%
- Air traffic control & airport congestion0%
- Security0%
IAH to TUL: common questions
- How often are IAH to TUL flights on time?
- 82% 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 Tulsa cancelled?
- 0.4% of scheduled flights were cancelled (4 of 1,087).
- 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 63 min behind schedule on average, and 6.3% of flights were an hour or more late.
- How long is taxi time at IAH?
- Flights on this route spent 22 min taxiing from the gate to takeoff on average.
Related routes
Return trip: TUL to IAH — 84% 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 → TUL, nonstop flights by US airlines that report to the DOT. How we calculate this.