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1,200 km · Domestic

Charleston (CHS) – Chicago Midway (MDW)

In July 2026, 99 flights operated between Charleston and Chicago Midway (both directions), and 70.7% 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
January18180.0%
February3435▲ 2.9%
March7357▼ 21.9%
April7065▼ 7.1%
May7072▲ 2.9%
June78100▲ 28.2%
July7699▲ 30.3%
August71––
September68––
October70–in progress
November41––
December34––
Year to date (Jan–Jul)419446▲ 6.4%

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
January88.9%83.3%▼ 6.3%
February91.2%82.9%▼ 9.1%
March84.9%66.7%▼ 21.4%
April75.7%76.9%▲ 1.6%
May81.4%76.4%▼ 6.1%
June82.1%56.0%▼ 31.8%
July77.6%70.7%▼ 8.9%
August83.1%––
September86.8%––
October88.6%–in progress
November61.0%––
December70.6%––
Year-to-date average (Jan–Jul)83.1%73.3%▼ 11.8%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January00–
February01–
March110.0%
April01–
May00–
June00–
July220.0%
August1––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)35▲ 66.7%

By direction

CHS → MDW

Scheduled flights
643
Flights operated
640
Cancelled
3 · 0.5%
On-time departures
83.9%

MDW → CHS

Scheduled flights
640
Flights operated
633
Cancelled
7 · 1.1%
On-time departures
72.8%

CHS → MDW and MDW → CHS counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 1,283 100.0% 78.4% 10

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

Recorded flights1,283CHS–MDW

Departure hour

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 · 105 · 105 recorded · 104 measured · Source: the US BTS 06:00 · 125 · 125 recorded · 125 measured · Source: the US BTS 07:00 · 109 · 109 recorded · 109 measured · Source: the US BTS 08:00 · 136 · 136 recorded · 135 measured · Source: the US BTS 09:00 · 23 · 23 recorded · 23 measured · Source: the US BTS 10:00 · 26 · 26 recorded · 26 measured · Source: the US BTS 11:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 12:00 · 37 · 37 recorded · 36 measured · Source: the US BTS 13:00 · 81 · 81 recorded · 81 measured · Source: the US BTS 14:00 · 18 · 18 recorded · 18 measured · Source: the US BTS 15:00 · 77 · 77 recorded · 76 measured · Source: the US BTS 16:00 · 74 · 74 recorded · 74 measured · Source: the US BTS 17:00 · 77 · 77 recorded · 76 measured · Source: the US BTS 18:00 · 127 · 127 recorded · 126 measured · Source: the US BTS 19:00 · 179 · 179 recorded · 177 measured · Source: the US BTS 20:00 · 45 · 45 recorded · 44 measured · Source: the US BTS 21:00 · 43 · 43 recorded · 42 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.

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
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—104105
06:00Fewer than 200 measured departures—125125
07:00Fewer than 200 measured departures—109109
08:00Fewer than 200 measured departures—135136
09:00Fewer than 200 measured departures—2323
10:00Fewer than 200 measured departures—2626
11:00Fewer than 200 measured departures—11
12:00Fewer than 200 measured departures—3637
13:00Fewer than 200 measured departures—8181
14:00Fewer than 200 measured departures—1818
15:00Fewer than 200 measured departures—7677
16:00Fewer than 200 measured departures—7474
17:00Fewer than 200 measured departures—7677
18:00Fewer than 200 measured departures—126127
19:00Fewer than 200 measured departures—177179
20:00Fewer than 200 measured departures—4445
21:00Fewer than 200 measured departures—4243
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 · Fewer than 200 measured departures · 176 recorded · 173 measured · Source: the US BTS Tuesday · Fewer than 200 measured departures · 128 recorded · 128 measured · Source: the US BTS Wednesday · Fewer than 200 measured departures · 120 recorded · 119 measured · Source: the US BTS Thursday · Fewer than 200 measured departures · 176 recorded · 174 measured · Source: the US BTS Friday · Fewer than 200 measured departures · 188 recorded · 188 measured · Source: the US BTS Saturday · 80.0% · 207 recorded · 205 measured · Source: the US BTS Sunday · 75.5% · 288 recorded · 286 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 · Fewer than 200 measured departures · 176 recorded · 173 measured · Source: the US BTS Tuesday · Fewer than 200 measured departures · 128 recorded · 128 measured · Source: the US BTS Wednesday · Fewer than 200 measured departures · 120 recorded · 119 measured · Source: the US BTS Thursday · Fewer than 200 measured departures · 176 recorded · 174 measured · Source: the US BTS Friday · Fewer than 200 measured departures · 188 recorded · 188 measured · Source: the US BTS Saturday · 9.6 min · 207 recorded · 205 measured · Source: the US BTS Sunday · 12.9 min · 288 recorded · 286 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 · 176 · 176 recorded · 173 measured · Source: the US BTS Tuesday · 128 · 128 recorded · 128 measured · Source: the US BTS Wednesday · 120 · 120 recorded · 119 measured · Source: the US BTS Thursday · 176 · 176 recorded · 174 measured · Source: the US BTS Friday · 188 · 188 recorded · 188 measured · Source: the US BTS Saturday · 207 · 207 recorded · 205 measured · Source: the US BTS Sunday · 288 · 288 recorded · 286 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
MondayFewer than 200 measured departures—173176
TuesdayFewer than 200 measured departures—128128
WednesdayFewer than 200 measured departures—119120
ThursdayFewer than 200 measured departures—174176
FridayFewer than 200 measured departures—188188
Saturday80.0%9.6 min205207
Sunday75.5%12.9 min286288

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 · 36 · 36 recorded · 36 measured · Source: the US BTS Feb · 70 · 70 recorded · 69 measured · Source: the US BTS Mar · 132 · 132 recorded · 130 measured · Source: the US BTS Apr · 136 · 136 recorded · 135 measured · Source: the US BTS May · 142 · 142 recorded · 142 measured · Source: the US BTS Jun · 178 · 178 recorded · 178 measured · Source: the US BTS Jul · 179 · 179 recorded · 175 measured · Source: the US BTS Aug · 72 · 72 recorded · 71 measured · Source: the US BTS Sep · 68 · 68 recorded · 68 measured · Source: the US BTS Oct · 116 · 116 recorded · 116 measured · Source: the US BTS Nov · 84 · 84 recorded · 83 measured · Source: the US BTS Dec · 70 · 70 recorded · 70 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—3636
FebFewer than 200 measured departures—6970
MarFewer than 200 measured departures—130132
AprFewer than 200 measured departures—135136
MayFewer than 200 measured departures—142142
JunFewer than 200 measured departures—178178
JulFewer than 200 measured departures—175179
AugFewer than 200 measured departures—7172
SepFewer than 200 measured departures—6868
OctFewer than 200 measured departures—116116
NovFewer than 200 measured departures—8384
DecFewer than 200 measured departures—7070

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 77.8% 998
  • Delayed >15 min 21.4% 275
  • Cancelled 0.8% 10
  • 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

17
17 of 17
Flight numbersBy direction DeparturesOn time
WN1045 CHS → MDW 64 93.8%
WN2013 CHS → MDW 60 93.3%
WN1994 CHS → MDW 58 96.6%
WN4183 MDW → CHS 58 74.1%
WN1477 MDW → CHS 57 66.1%
WN4167 CHS → MDW 57 94.7%
WN3165 CHS → MDW 50 94.0%
WN4539 MDW → CHS 49 70.8%
WN2621 MDW → CHS 47 87.2%
WN2713 MDW → CHS 40 69.2%
WN1271 MDW → CHS 36 61.8%
WN1959 CHS → MDW 36 61.1%
WN232 MDW → CHS 34 94.1%
WN2468 MDW → CHS 33 71.9%
WN3931 MDW → CHS 33 72.7%
WN3698 CHS → MDW 32 93.8%
WN2764 CHS → MDW 31 80.7%

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 99 +30.3% 2 70.7%
June 2026 100 +28.2% 0 56.0%
May 2026 72 +2.9% 0 76.4%
April 2026 65 −7.1% 1 76.9%
March 2026 57 −21.9% 1 66.7%
February 2026 35 +2.9% 1 82.9%
January 2026 18 +0.0% 0 83.3%
December 2025 34 −5.6% 0 70.6%
November 2025 41 −2.4% 1 61.0%
October 2025 70 +52.2% 0 88.6%
September 2025 68 0 86.8%
August 2025 71 1 83.1%
July 2025 76 2 77.6%
June 2025 78 0 82.1%
May 2025 70 0 81.4%
April 2025 70 0 75.7%
March 2025 73 1 84.9%
February 2025 34 0 91.2%
January 2025 18 0 88.9%
December 2024 36 0 83.3%
November 2024 42 0 95.2%
October 2024 46 0 95.7%

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