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1,368 km · Domestic

Jacksonville (JAX) – Chicago Midway (MDW)

In July 2026, 113 flights operated between Jacksonville and Chicago Midway (both directions), and 64.6% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January5654▼ 3.6%
February5254▲ 3.8%
March7166▼ 7.0%
April6162▲ 1.6%
May6162▲ 1.6%
June76105▲ 38.2%
July78113▲ 44.9%
August64––
September60––
October62–in progress
November58––
December62––
Year to date (Jan–Jul)455516▲ 13.4%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January83.9%83.3%▼ 0.7%
February92.3%72.2%▼ 21.8%
March83.1%56.1%▼ 32.5%
April77.0%79.0%▲ 2.6%
May75.4%72.6%▼ 3.7%
June73.7%64.8%▼ 12.1%
July62.8%64.6%▲ 2.9%
August79.7%––
September83.3%––
October72.6%–in progress
November70.7%––
December66.1%––
Year-to-date average (Jan–Jul)78.3%70.4%▼ 10.1%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January00–
February00–
March04–
April10▼ 100.0%
May10▼ 100.0%
June01–
July03–
August0––
September0––
October0–in progress
November2––
December0––
Year to date (Jan–Jul)28▲ 300.0%

By direction

JAX → MDW

Scheduled flights
732
Flights operated
724
Cancelled
8 · 1.1%
On-time departures
74.2%

MDW → JAX

Scheduled flights
733
Flights operated
729
Cancelled
4 · 0.5%
On-time departures
75.4%

JAX → MDW and MDW → JAX counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 1,465 100.0% 74.8% 12

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay17:00–18:0020.1min · 224 recorded · 222 measured
Recorded flights1,465JAX–MDW

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 22 recorded · 22 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 21 recorded · 20 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 140 recorded · 138 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 35 recorded · 35 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 64 recorded · 64 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 99 recorded · 98 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 92 recorded · 92 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 178 recorded · 178 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 39 recorded · 39 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 89 recorded · 89 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 85 recorded · 85 measured · Source: the US BTS 17:00 · 63.5% · 224 recorded · 222 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 191 recorded · 190 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 109 recorded · 105 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 24 recorded · 23 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 22 recorded · 22 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 21 recorded · 20 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 140 recorded · 138 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 35 recorded · 35 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 64 recorded · 64 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 99 recorded · 98 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 92 recorded · 92 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 178 recorded · 178 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 39 recorded · 39 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 89 recorded · 89 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 85 recorded · 85 measured · Source: the US BTS 17:00 · 20.1 min · 224 recorded · 222 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 191 recorded · 190 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 109 recorded · 105 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 24 recorded · 23 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 22 · 22 recorded · 22 measured · Source: the US BTS 06:00 · 21 · 21 recorded · 20 measured · Source: the US BTS 07:00 · 140 · 140 recorded · 138 measured · Source: the US BTS 08:00 · 52 · 52 recorded · 52 measured · Source: the US BTS 09:00 · 35 · 35 recorded · 35 measured · Source: the US BTS 10:00 · 64 · 64 recorded · 64 measured · Source: the US BTS 11:00 · 99 · 99 recorded · 98 measured · Source: the US BTS 12:00 · 92 · 92 recorded · 92 measured · Source: the US BTS 13:00 · 178 · 178 recorded · 178 measured · Source: the US BTS 14:00 · 39 · 39 recorded · 39 measured · Source: the US BTS 15:00 · 89 · 89 recorded · 89 measured · Source: the US BTS 16:00 · 85 · 85 recorded · 85 measured · Source: the US BTS 17:00 · 224 · 224 recorded · 222 measured · Source: the US BTS 18:00 · 191 · 191 recorded · 190 measured · Source: the US BTS 19:00 · 109 · 109 recorded · 105 measured · Source: the US BTS 20:00 · 24 · 24 recorded · 23 measured · Source: the US BTS 21:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00Fewer than 200 measured departures—2222
06:00Fewer than 200 measured departures—2021
07:00Fewer than 200 measured departures—138140
08:00Fewer than 200 measured departures—5252
09:00Fewer than 200 measured departures—3535
10:00Fewer than 200 measured departures—6464
11:00Fewer than 200 measured departures—9899
12:00Fewer than 200 measured departures—9292
13:00Fewer than 200 measured departures—178178
14:00Fewer than 200 measured departures—3939
15:00Fewer than 200 measured departures—8989
16:00Fewer than 200 measured departures—8585
17:0063.5%20.1 min222224
18:00Fewer than 200 measured departures—190191
19:00Fewer than 200 measured departures—105109
20:00Fewer than 200 measured departures—2324
21:00Fewer than 200 measured departures—11
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 73.1% · 210 recorded · 208 measured · Source: the US BTS Tuesday · 77.8% · 204 recorded · 203 measured · Source: the US BTS Wednesday · 78.4% · 205 recorded · 204 measured · Source: the US BTS Thursday · 70.1% · 206 recorded · 204 measured · Source: the US BTS Friday · 75.1% · 212 recorded · 209 measured · Source: the US BTS Saturday · 81.4% · 206 recorded · 204 measured · Source: the US BTS Sunday · 68.3% · 222 recorded · 221 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 13.4 min · 210 recorded · 208 measured · Source: the US BTS Tuesday · 8.7 min · 204 recorded · 203 measured · Source: the US BTS Wednesday · 10.9 min · 205 recorded · 204 measured · Source: the US BTS Thursday · 15.1 min · 206 recorded · 204 measured · Source: the US BTS Friday · 14.4 min · 212 recorded · 209 measured · Source: the US BTS Saturday · 10.7 min · 206 recorded · 204 measured · Source: the US BTS Sunday · 15.6 min · 222 recorded · 221 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 210 · 210 recorded · 208 measured · Source: the US BTS Tuesday · 204 · 204 recorded · 203 measured · Source: the US BTS Wednesday · 205 · 205 recorded · 204 measured · Source: the US BTS Thursday · 206 · 206 recorded · 204 measured · Source: the US BTS Friday · 212 · 212 recorded · 209 measured · Source: the US BTS Saturday · 206 · 206 recorded · 204 measured · Source: the US BTS Sunday · 222 · 222 recorded · 221 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday73.1%13.4 min208210
Tuesday77.8%8.7 min203204
Wednesday78.4%10.9 min204205
Thursday70.1%15.1 min204206
Friday75.1%14.4 min209212
Saturday81.4%10.7 min204206
Sunday68.3%15.6 min221222

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 110 · 110 recorded · 110 measured · Source: the US BTS Feb · 106 · 106 recorded · 106 measured · Source: the US BTS Mar · 141 · 141 recorded · 137 measured · Source: the US BTS Apr · 124 · 124 recorded · 123 measured · Source: the US BTS May · 124 · 124 recorded · 123 measured · Source: the US BTS Jun · 182 · 182 recorded · 181 measured · Source: the US BTS Jul · 194 · 194 recorded · 191 measured · Source: the US BTS Aug · 64 · 64 recorded · 64 measured · Source: the US BTS Sep · 60 · 60 recorded · 60 measured · Source: the US BTS Oct · 116 · 116 recorded · 116 measured · Source: the US BTS Nov · 120 · 120 recorded · 118 measured · Source: the US BTS Dec · 124 · 124 recorded · 124 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—110110
FebFewer than 200 measured departures—106106
MarFewer than 200 measured departures—137141
AprFewer than 200 measured departures—123124
MayFewer than 200 measured departures—123124
JunFewer than 200 measured departures—181182
JulFewer than 200 measured departures—191194
AugFewer than 200 measured departures—6464
SepFewer than 200 measured departures—6060
OctFewer than 200 measured departures—116116
NovFewer than 200 measured departures—118120
DecFewer than 200 measured departures—124124

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 74.2% 1,087
  • Delayed >15 min 25.0% 366
  • Cancelled 0.8% 12
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

22
22 of 22
Flight numbersBy direction DeparturesOn time
WN4816 JAX → MDW 81 86.4%
WN1581 MDW → JAX 69 89.9%
WN3234 JAX → MDW 61 54.1%
WN1913 MDW → JAX 58 63.8%
WN1384 JAX → MDW 57 94.7%
WN1558 MDW → JAX 57 86.0%
WN3097 JAX → MDW 57 79.0%
WN4026 JAX → MDW 57 89.5%
WN2698 MDW → JAX 53 84.9%
WN2164 JAX → MDW 50 46.8%
WN3851 JAX → MDW 50 65.3%
WN3123 MDW → JAX 45 75.0%
WN3830 MDW → JAX 45 66.7%
WN1008 JAX → MDW 42 69.1%
WN251 MDW → JAX 42 83.3%
WN2792 MDW → JAX 42 43.9%
WN743 JAX → MDW 42 78.6%
WN4499 MDW → JAX 41 73.2%
WN1864 MDW → JAX 33 43.8%
WN2713 JAX → MDW 33 75.0%
WN2476 JAX → MDW 31 61.3%
WN3826 MDW → JAX 31 83.9%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 113 +44.9% 3 64.6%
June 2026 105 +38.2% 1 64.8%
May 2026 62 +1.6% 0 72.6%
April 2026 62 +1.6% 0 79.0%
March 2026 66 −7.0% 4 56.1%
February 2026 54 +3.8% 0 72.2%
January 2026 54 −3.6% 0 83.3%
December 2025 62 +0.0% 0 66.1%
November 2025 58 −3.3% 2 70.7%
October 2025 62 +14.8% 0 72.6%
September 2025 60 0 83.3%
August 2025 64 0 79.7%
July 2025 78 0 62.8%
June 2025 76 0 73.7%
May 2025 61 1 75.4%
April 2025 61 1 77.0%
March 2025 71 0 83.1%
February 2025 52 0 92.3%
January 2025 56 0 83.9%
December 2024 62 0 80.6%
November 2024 60 0 90.0%
October 2024 54 0 87.0%

How to read this chart

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