Route Reliability
Spokane → Chicago
GEG–MDW · 1,511 miles · Spokane International Airport to Chicago Midway International Airport
82
Pretty Reliable
WanderNerd Reliability Score
- 89%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 1.3%
- Cancelled
- 77
- Flights in the data
Data through May 2026.
Southwest Airlines is the only airline in this data on this route, arriving on time 89% of the time across 77 flights. No comparison to make.
What the data says
Morning flights do better here.
GEG–MDW flights departing between 6–9 AM arrived on time 95% of the time, versus 80% between 12–3 PM.
Friday is doing you no favors.
GEG–MDW flights arrived on time 100% of the time on Sundays and just 81% on Fridays. That gap is worth planning around.
Flights on this route
The breakdown
- Mon81%(16 flights)
- Tue—(0 flights)
- Wed—(0 flights)
- Thu94%(17 flights)
- Fri81%(16 flights)
- Sat—(8 flights)
- Sun100%(17 flights)
- 6–9 AM95%(43 flights)
- 9 AM–12 PM—(1 flights)
- 12–3 PM80%(30 flights)
82%
Sep
Jun 95% → Sep 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 95% | 20 |
| July 2025 | 100% | 19 |
| August 2025 | 78% | 18 |
| September 2025 | 82% | 17 |
Same trip, other airports
Keep nerding
Based on 77 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.