Route
MDW → RDU
Chicago Midway International Airport Raleigh-Durham International Airport
How punctual is this route?
- On-time arrivals
- 79.8%
- Less than 15 minutes late
- Cancelled
- 2.0%
- Of scheduled flights
- Average delay when late
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 960
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 47%
- Airline (crew, maintenance, cleaning) 36%
- Air traffic control & airport 14%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 90.0% | 90 |
| October 2025 | 85.0% | 80 |
| November 2025 | 89.0% | 85 |
| December 2025 | 77.5% | 89 |
| January 2026 | 91.8% | 67 |
| February 2026 | 89.1% | 56 |
| March 2026 | 74.6% | 66 |
| April 2026 | 80.6% | 74 |
| May 2026 | 82.5% | 80 |
| June 2026 | 67.8% | 88 |
| July 2026 | 65.9% | 92 |
| August 2026 | 71.0% | 93 |
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 | 960 | 79.8% | 2.0% | 62 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
WN1108
12% late · 64 flights
-
WN2080
15% late · 60 flights
-
WN4601
13% late · 58 flights
-
WN4808
7% late · 58 flights
-
WN3357
25% late · 57 flights
-
WN2665
26% late · 47 flights
-
WN852
11% late · 45 flights
-
WN4221
58% late · 43 flights
-
WN2349
20% late · 41 flights
-
WN4653
8% late · 40 flights
-
WN4462
23% late · 36 flights
-
WN724
34% late · 33 flights
-
WN931
19% late · 33 flights
-
WN1029
19% late · 31 flights
-
WN673
12% late · 26 flights
-
WN3356
29% late · 24 flights
-
WN2875
17% late · 23 flights
-
WN2429
0% late · 21 flights
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