Route
MDW → BOI
Chicago Midway International Airport Boise Air Terminal/Gowen Field
1,448 miles
Return route BOI → MDW →
How punctual is this route?
- On-time arrivals
- 60.7%
- Less than 15 minutes late
- Cancelled
- 2.3%
- Of scheduled flights
- Average delay when late
- 66 min
- Flights arriving 15+ minutes late
- Flights tracked
- 86
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 43%
- Airline (crew, maintenance, cleaning) 35%
- Extreme weather 15%
- Air traffic control & airport 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 82.4% | 17 |
| October 2025 | 100.0% | 1 |
| June 2026 | 50.0% | 23 |
| July 2026 | 65.4% | 27 |
| August 2026 | 44.4% | 18 |
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 |
|---|---|---|---|---|
| Southwest Airlines | 86 | 60.7% | 2.3% | 66 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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WN2737
43% late · 36 flights
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