Route
OAK → MDW
Oakland San Francisco Bay Airport Chicago Midway International Airport
Alerts at OAK and MDW
How punctual is this route?
- On-time arrivals
- 84.5%
- Less than 15 minutes late
- Cancelled
- 0.2%
- Of scheduled flights
- Average delay when late
- 43 min
- Flights arriving 15+ minutes late
- Flights tracked
- 526
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 44%
- Airline (crew, maintenance, cleaning) 37%
- Air traffic control & airport 17%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 91.2% | 34 |
| October 2025 | 97.1% | 35 |
| November 2025 | 74.2% | 33 |
| December 2025 | 84.8% | 33 |
| January 2026 | 87.5% | 32 |
| February 2026 | 92.9% | 28 |
| March 2026 | 84.9% | 55 |
| April 2026 | 90.6% | 53 |
| May 2026 | 84.6% | 52 |
| June 2026 | 67.9% | 56 |
| July 2026 | 82.8% | 58 |
| August 2026 | 84.2% | 57 |
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 | 526 | 84.5% | 0.2% | 43 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN3059
34% late · 61 flights
-
WN3552
12% late · 58 flights
-
WN4248
12% late · 58 flights
-
WN2363
11% late · 46 flights
-
WN3551
10% late · 42 flights
-
WN4069
16% late · 32 flights
-
WN3123
10% late · 31 flights
-
WN1150
15% late · 28 flights
-
WN2986
21% late · 28 flights
-
WN2744
11% late · 27 flights
-
WN1218
4% late · 25 flights
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