AUS to MDW flight delays & on-time performance
Nonstop flights from Austin Bergstrom International Airport to Chicago Midway International Airport · 972 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at AUS or MDW right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Austin (AUS) to Chicago (MDW) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1% were cancelled, and 6% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 5am did best (92% on time); around 3pm did worst (44%).
- Wednesday was the most reliable day to fly (81% on time) and Sunday the least (70%).
- The largest source of delay minutes was late-arriving aircraft (48%).
Which airline is most on time from AUS to MDW?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 77% | 1.0% | 14 min | 6.3% | 1,349 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am92%132 flights
- 6am92%178 flights
- 7am78%37 flights
- 9am85%111 flights
- 10am91%120 flights
- 11am87%40 flights
- 12pm91%67 flights
- 1pm70%52 flights
- 2pm70%156 flights
- 3pm44%135 flights
- 4pm58%54 flights
- 5pm76%25 flights
- 6pm81%31 flights
- 7pm63%46 flights
- 8pm59%17 flights
- 9pm71%108 flights
- 10pm68%35 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday74%1.8% cancelled
- Tuesday77%0.0% cancelled
- Wednesday81%0.0% cancelled
- Thursday79%0.9% cancelled
- Friday77%0.9% cancelled
- Saturday80%1.5% cancelled
- Sunday70%2.1% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft48%
- Airline (crew, maintenance, cleaning, fueling)29%
- Air traffic control & airport congestion19%
- Extreme weather3%
- Security1%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather79%
- Airline (crew, maintenance, cleaning, fueling)21%
- Air traffic control & airport congestion0%
- Security0%
AUS to MDW: common questions
- How often are AUS to MDW flights on time?
- 77% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Austin to Chicago cancelled?
- 1.0% of scheduled flights were cancelled (14 of 1,349).
- How long are typical delays?
- Across all flights the average arrival delay was 14 min (early arrivals count as zero). Flights that were late arrived 52 min behind schedule on average, and 6.3% of flights were an hour or more late.
- How long is taxi time at AUS?
- Flights on this route spent 13 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MDW to AUS — 77% on time
More flights from Austin
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: AUS → MDW, nonstop flights by US airlines that report to the DOT. How we calculate this.