Route Reliability
Chicago → Houston
MDW–IAH · 917 miles · Chicago Midway International Airport to George Bush Intercontinental Airport
77
Usually Fine
WanderNerd Reliability Score
- 75%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 1.5%
- Cancelled
- 130
- Flights in the data
Data through May 2026.
Frontier Airlines is the only airline in this data on this route, arriving on time 75% of the time across 130 flights. No comparison to make.
What the data says
Morning-you made the right choice.
MDW–IAH flights departing between 9 AM–12 PM arrived on time 92% of the time, versus 56% between 3–6 PM.
Mondays have been rough.
MDW–IAH flights arrived on time 93% of the time on Thursdays and just 54% on Mondays. That gap is worth planning around.
The breakdown
- Mon54%(41 flights)
- Tue—(1 flights)
- Wed—(3 flights)
- Thu93%(15 flights)
- Fri90%(41 flights)
- Sat—(7 flights)
- Sun75%(20 flights)
- 6–9 AM89%(37 flights)
- 9 AM–12 PM92%(26 flights)
- 12–3 PM68%(22 flights)
- 3–6 PM56%(43 flights)
62%
Dec
Aug 85% → Dec 62% on time
| Month | On-time percentage | Flights |
|---|---|---|
| August 2025 | 85% | 13 |
| September 2025 | 88% | 17 |
| October 2025 | 95% | 21 |
| November 2025 | 78% | 23 |
| December 2025 | 62% | 13 |
Same trip, other airports
Keep nerding
Based on 130 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.