Route
IAH → MDW
George Bush Intercontinental Airport Chicago Midway International Airport
917 miles
Return route MDW → IAH →
How punctual is this route?
- On-time arrivals
- 72.4%
- Less than 15 minutes late
- Cancelled
- 2.0%
- Of scheduled flights
- Average delay when late
- 95 min
- Flights arriving 15+ minutes late
- Flights tracked
- 100
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 83%
- Airline (crew, maintenance, cleaning) 12%
- Air traffic control & airport 5%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Apr 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 82.4% | 17 |
| October 2025 | 90.5% | 21 |
| November 2025 | 65.2% | 24 |
| December 2025 | 46.2% | 13 |
| January 2026 | 50.0% | 4 |
| February 2026 | 85.7% | 7 |
| March 2026 | 55.6% | 10 |
| April 2026 | 100.0% | 4 |
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
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Frontier Airlines | 100 | 72.4% | 2.0% | 95 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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