Flight F91398
Frontier Airlines flight F91398
Looking for F91398 in the air…
Houston (IAH) to Chicago (MDW)
Historically, this flight arrives 15+ minutes late 48% of the time, and when it is late the delay averages 107 minutes. It was cancelled 3.1% of the time.
- On-time arrivals
- 51.6%
- Less than 15 minutes late
- Cancelled
- 3.1%
- Of scheduled flights
- Average delay when late
- 107 min
- Flights arriving 15+ minutes late
- Flights tracked
- 32
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 84%
- Airline (crew, maintenance, cleaning) 12%
- Air traffic control & airport 4%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Nov 2025
Mar 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| November 2025 | 50.0% | 9 |
| December 2025 | 46.2% | 13 |
| January 2026 | 50.0% | 4 |
| February 2026 | 80.0% | 5 |
| March 2026 | 0.0% | 1 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data