JAX to MDW flight delays & on-time performance
Nonstop flights from Jacksonville International Airport to Chicago Midway International Airport · 848 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at JAX or MDW right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Jacksonville (JAX) to Chicago (MDW) arrived on time 80% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.4% 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 1pm did best (100% on time); around 6pm did worst (64%).
- Saturday was the most reliable day to fly (88% on time) and Sunday the least (69%).
- The largest source of delay minutes was late-arriving aircraft (55%).
Which airline is most on time from JAX 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 | 80% | 1.4% | 12 min | 5.6% | 416 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am73%16 flights
- 7am94%104 flights
- 1pm100%18 flights
- 2pm82%22 flights
- 3pm86%38 flights
- 5pm70%92 flights
- 6pm64%64 flights
- 7pm82%41 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday83%1.7% cancelled
- Tuesday78%1.7% cancelled
- Wednesday78%0.0% cancelled
- Thursday79%3.3% cancelled
- Friday85%1.6% cancelled
- Saturday88%1.9% cancelled
- Sunday69%0.0% 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 aircraft55%
- Airline (crew, maintenance, cleaning, fueling)24%
- Air traffic control & airport congestion15%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
JAX to MDW: common questions
- How often are JAX to MDW flights on time?
- 80% 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 Jacksonville to Chicago cancelled?
- 1.4% of scheduled flights were cancelled (6 of 416).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 51 min behind schedule on average, and 5.6% of flights were an hour or more late.
- How long is taxi time at JAX?
- Flights on this route spent 12 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MDW to JAX — 73% on time
More flights from Jacksonville
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: JAX → MDW, nonstop flights by US airlines that report to the DOT. How we calculate this.