About 1 in 5 F9 1742 flights from Houston arrived 15+ minutes late, diverted or cancelled over the past year (21%); 1.7% were cancelled. The typical flight landed 11 minutes early.
F9 1742: IAH → RDU
Scheduled to leave Houston at 9:40 a.m. local time. Over the past year it arrived on time 79% of the time (174 flights), in line with other F9 flights on the route at that hour (82%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 28 | 64% |
| Tuesday | 18 | — |
| Wednesday | 14 | — |
| Thursday | 34 | 82% |
| Friday | 28 | 75% |
| Saturday | 18 | — |
| Sunday | 34 | 74% |
Why it was late
All flights IAH → RDU · Connecting off F9 1742? Check the risk
Questions
How often is F9 1742 from IAH to RDU late?
Frontier Airlines 1742 from Houston, TX to Raleigh/Durham, NC arrived 15 or more minutes late, was diverted or was cancelled on 21% of 174 scheduled flights between September 2025 and August 2026. 1.7% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Frontier Airlines for today's flight. Method.