Jacksonville (JAX) to Chicago (MDW)
Flight time
≈ 2h 30m
Bearing
338° N
Jacksonville (JAX) to Chicago (MDW) is 850 miles (1,368 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies JAX–MDW
Filed traffic dataIn July 2026, Southwest Airlines was the only carrier flying nonstop JAX–MDW; the Boeing 737 MAX 8 was the most common aircraft at 55% of departures; flights ran 78% full.
Departures
113
July 2026
Seats
18,635
both directions
Passengers
14,506
both directions
Load factor
77.8%
RPM ÷ ASM
Who flies JAX–MDW?
Southwest Airlines was the only carrier to fly nonstop JAX–MDW in July 2026 (113 departures).
- WN
113 departures · 18,635 seats
Share of departures100.0%77.8%
Load
What plane flies JAX–MDW?
In July 2026, the Boeing 737 MAX 8 flew 55% of JAX–MDW departures — more than any other aircraft type.
- Boeing 737 MAX 8
62 departures · 72.7% load
54.9% - Boeing 737-700
30 departures · 90.2% load
26.6% - Boeing 737-800
21 departures · 79.2% load
18.6%
How has JAX–MDW traffic changed?
Nonstop JAX–MDW departures rose from 66 in August 2025 to 113 in July 2026.
Monthly nonstop JAX–MDW traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
August 2025
66 departures · 8,430 passengers
79.8%
Load
September 2025
60 departures · 7,195 passengers
76.2%
Load
October 2025
62 departures · 7,706 passengers
74.8%
Load
November 2025
57 departures · 6,394 passengers
69.2%
Load
December 2025
63 departures · 6,752 passengers
67.7%
Load
January 2026
54 departures · 5,797 passengers
63.5%
Load
February 2026
54 departures · 6,213 passengers
70.6%
Load
March 2026
68 departures · 8,236 passengers
73.7%
Load
April 2026
63 departures · 7,351 passengers
71.7%
Load
May 2026
63 departures · 7,906 passengers
77.6%
Load
June 2026
107 departures · 14,093 passengers
80.0%
Load
July 2026
113 departures · 14,506 passengers
77.8%
Load
By direction
Each direction is filed separately — they rarely match.
MDW → JAX
73.3% full
57 departures · 7,056 passengers
JAX → MDW
82.8% full
56 departures · 7,450 passengers
Nonstop JAX–MDW traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Jacksonville (JAX) from Chicago (MDW)?
JAX to MDW is 850 miles (1,368 km / 739 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from JAX to MDW?
A nonstop covers the 850-mile great-circle distance in roughly 2h 30m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies JAX–MDW?
In July 2026, the Boeing 737 MAX 8 flew the largest share of departures (54.9%), followed by the Boeing 737-700 (26.6%).
What mileage do I earn flying JAX–MDW?
Distance-based programs credit off the 850-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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