Route Reliability
Milwaukee → San Diego
MKE–SAN · 1,739 miles · Milwaukee Mitchell International Airport to San Diego International Airport
- 70%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 0%
- Cancelled
- 142
- Flights in the data
Data through May 2026.
Southwest Airlines is the only airline in this data on this route, arriving on time 70% of the time across 142 flights. No comparison to make.
What the data says
The 3–6 PM departure wins.
MKE–SAN flights departing between 3–6 PM arrived on time 77% of the time, versus 67% between 12–3 PM.
Mondays have been rough.
MKE–SAN flights arrived on time 83% of the time on Saturdays and just 61% on Mondays. That gap is worth planning around.
It basically never cancels.
Out of 142 scheduled flights, only 0.0% were cancelled.
Ticking up lately.
MKE–SAN flights arrived on time 70% of the time over the last three months in the data, compared with 66% in the three months before that.
Flights on this route
The breakdown
- Mon61%(23 flights)
- Tue—(3 flights)
- Wed—(1 flights)
- Thu65%(23 flights)
- Fri64%(28 flights)
- Sat83%(36 flights)
- Sun74%(27 flights)
- 9 AM–12 PM71%(17 flights)
- 12–3 PM67%(90 flights)
- 3–6 PM77%(34 flights)
Oct 62% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| October 2025 | 62% | 21 |
| November 2025 | 68% | 19 |
| December 2025 | 77% | 17 |
| February 2026 | 55% | 11 |
| March 2026 | 71% | 21 |
| April 2026 | 56% | 18 |
| May 2026 | 82% | 17 |
Keep nerding
Based on 142 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.