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774 km · Domestic

Chicago Midway (MDW) – Frederick W. Smith (MEM)

In July 2026, 121 flights operated between Chicago Midway and Frederick W. Smith (both directions), and 63.6% 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
January8074▼ 7.5%
February86860.0%
March110113▲ 2.7%
April108120▲ 11.1%
May113124▲ 9.7%
June111119▲ 7.2%
July114121▲ 6.1%
August113––
September112––
October116–in progress
November104––
December116––
Year to date (Jan–Jul)722757▲ 4.8%

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
January76.3%90.5%▲ 18.6%
February84.9%83.7%▼ 1.4%
March82.7%68.1%▼ 17.7%
April84.3%85.0%▲ 0.8%
May81.4%73.4%▼ 9.8%
June73.0%68.9%▼ 5.6%
July66.7%63.6%▼ 4.6%
August85.0%––
September91.1%––
October88.8%–in progress
November82.7%––
December81.9%––
Year-to-date average (Jan–Jul)78.5%76.2%▼ 2.9%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January26▲ 200.0%
February00–
March07–
April40▼ 100.0%
May10▼ 100.0%
June01–
July23▲ 50.0%
August1––
September0––
October0–in progress
November4––
December0––
Year to date (Jan–Jul)917▲ 88.9%

By direction

MDW → MEM

Scheduled flights
1,186
Flights operated
1,172
Cancelled
14 · 1.2%
On-time departures
77.5%

MEM → MDW

Scheduled flights
1,188
Flights operated
1,171
Cancelled
17 · 1.4%
On-time departures
82.1%

MDW → MEM and MEM → MDW counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 2,374 100.0% 79.8% 31

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 delay07:00–08:001.3min · 266 recorded · 262 measured
Gap to highest-delay hour24.8min07:00 ↔ 21:00
Recorded flights2,374MDW–MEM

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 · 92.0% · 344 recorded · 338 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 110 recorded · 108 measured · Source: the US BTS 07:00 · 93.1% · 266 recorded · 262 measured · Source: the US BTS 08:00 · 89.6% · 252 recorded · 249 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 129 recorded · 128 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 138 recorded · 137 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 11 recorded · 11 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 12 recorded · 11 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 39 recorded · 39 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 10 recorded · 10 measured · Source: the US BTS 15:00 · 73.4% · 216 recorded · 214 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 173 recorded · 171 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 113 recorded · 111 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 60 recorded · 60 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 18 recorded · 18 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 147 recorded · 145 measured · Source: the US BTS 21:00 · 61.8% · 208 recorded · 204 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 128 recorded · 127 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 · 2.8 min · 344 recorded · 338 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 110 recorded · 108 measured · Source: the US BTS 07:00 · 1.3 min · 266 recorded · 262 measured · Source: the US BTS 08:00 · 3.2 min · 252 recorded · 249 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 129 recorded · 128 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 138 recorded · 137 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 11 recorded · 11 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 12 recorded · 11 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 39 recorded · 39 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 10 recorded · 10 measured · Source: the US BTS 15:00 · 13.5 min · 216 recorded · 214 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 173 recorded · 171 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 113 recorded · 111 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 60 recorded · 60 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 18 recorded · 18 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 147 recorded · 145 measured · Source: the US BTS 21:00 · 26.0 min · 208 recorded · 204 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 128 recorded · 127 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 · 344 · 344 recorded · 338 measured · Source: the US BTS 06:00 · 110 · 110 recorded · 108 measured · Source: the US BTS 07:00 · 266 · 266 recorded · 262 measured · Source: the US BTS 08:00 · 252 · 252 recorded · 249 measured · Source: the US BTS 09:00 · 129 · 129 recorded · 128 measured · Source: the US BTS 10:00 · 138 · 138 recorded · 137 measured · Source: the US BTS 11:00 · 11 · 11 recorded · 11 measured · Source: the US BTS 12:00 · 12 · 12 recorded · 11 measured · Source: the US BTS 13:00 · 39 · 39 recorded · 39 measured · Source: the US BTS 14:00 · 10 · 10 recorded · 10 measured · Source: the US BTS 15:00 · 216 · 216 recorded · 214 measured · Source: the US BTS 16:00 · 173 · 173 recorded · 171 measured · Source: the US BTS 17:00 · 113 · 113 recorded · 111 measured · Source: the US BTS 18:00 · 60 · 60 recorded · 60 measured · Source: the US BTS 19:00 · 18 · 18 recorded · 18 measured · Source: the US BTS 20:00 · 147 · 147 recorded · 145 measured · Source: the US BTS 21:00 · 208 · 208 recorded · 204 measured · Source: the US BTS 22:00 · 128 · 128 recorded · 127 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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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———
05:0092.0%2.8 min338344
06:00Fewer than 200 measured departures—108110
07:0093.1%1.3 min262266
08:0089.6%3.2 min249252
09:00Fewer than 200 measured departures—128129
10:00Fewer than 200 measured departures—137138
11:00Fewer than 200 measured departures—1111
12:00Fewer than 200 measured departures—1112
13:00Fewer than 200 measured departures—3939
14:00Fewer than 200 measured departures—1010
15:0073.4%13.5 min214216
16:00Fewer than 200 measured departures—171173
17:00Fewer than 200 measured departures—111113
18:00Fewer than 200 measured departures—6060
19:00Fewer than 200 measured departures—1818
20:00Fewer than 200 measured departures—145147
21:0061.8%26.0 min204208
22:00Fewer than 200 measured departures—127128
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 74.6% · 364 recorded · 358 measured · Source: the US BTS Tuesday · 82.4% · 341 recorded · 341 measured · Source: the US BTS Wednesday · 85.0% · 339 recorded · 334 measured · Source: the US BTS Thursday · 78.3% · 360 recorded · 354 measured · Source: the US BTS Friday · 79.1% · 364 recorded · 359 measured · Source: the US BTS Saturday · 82.5% · 238 recorded · 234 measured · Source: the US BTS Sunday · 78.0% · 368 recorded · 363 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 · 12.6 min · 364 recorded · 358 measured · Source: the US BTS Tuesday · 7.5 min · 341 recorded · 341 measured · Source: the US BTS Wednesday · 7.8 min · 339 recorded · 334 measured · Source: the US BTS Thursday · 10.2 min · 360 recorded · 354 measured · Source: the US BTS Friday · 14.9 min · 364 recorded · 359 measured · Source: the US BTS Saturday · 10.6 min · 238 recorded · 234 measured · Source: the US BTS Sunday · 12.6 min · 368 recorded · 363 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 · 364 · 364 recorded · 358 measured · Source: the US BTS Tuesday · 341 · 341 recorded · 341 measured · Source: the US BTS Wednesday · 339 · 339 recorded · 334 measured · Source: the US BTS Thursday · 360 · 360 recorded · 354 measured · Source: the US BTS Friday · 364 · 364 recorded · 359 measured · Source: the US BTS Saturday · 238 · 238 recorded · 234 measured · Source: the US BTS Sunday · 368 · 368 recorded · 363 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday74.6%12.6 min358364
Tuesday82.4%7.5 min341341
Wednesday85.0%7.8 min334339
Thursday78.3%10.2 min354360
Friday79.1%14.9 min359364
Saturday82.5%10.6 min234238
Sunday78.0%12.6 min363368

Month of year

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

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · Fewer than 200 measured departures · 162 recorded · 154 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 172 recorded · 172 measured · Source: the US BTS Mar · 75.3% · 230 recorded · 223 measured · Source: the US BTS Apr · 84.7% · 232 recorded · 228 measured · Source: the US BTS May · 77.2% · 238 recorded · 237 measured · Source: the US BTS Jun · 70.9% · 231 recorded · 230 measured · Source: the US BTS Jul · 65.1% · 240 recorded · 235 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 114 recorded · 113 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 112 recorded · 112 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 190 recorded · 190 measured · Source: the US BTS Nov · 83.7% · 219 recorded · 215 measured · Source: the US BTS Dec · 80.3% · 234 recorded · 234 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · Fewer than 200 measured departures · 162 recorded · 154 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 172 recorded · 172 measured · Source: the US BTS Mar · 13.9 min · 230 recorded · 223 measured · Source: the US BTS Apr · 7.3 min · 232 recorded · 228 measured · Source: the US BTS May · 11.3 min · 238 recorded · 237 measured · Source: the US BTS Jun · 20.8 min · 231 recorded · 230 measured · Source: the US BTS Jul · 22.1 min · 240 recorded · 235 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 114 recorded · 113 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 112 recorded · 112 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 190 recorded · 190 measured · Source: the US BTS Nov · 9.3 min · 219 recorded · 215 measured · Source: the US BTS Dec · 10.2 min · 234 recorded · 234 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
Jan · 162 · 162 recorded · 154 measured · Source: the US BTS Feb · 172 · 172 recorded · 172 measured · Source: the US BTS Mar · 230 · 230 recorded · 223 measured · Source: the US BTS Apr · 232 · 232 recorded · 228 measured · Source: the US BTS May · 238 · 238 recorded · 237 measured · Source: the US BTS Jun · 231 · 231 recorded · 230 measured · Source: the US BTS Jul · 240 · 240 recorded · 235 measured · Source: the US BTS Aug · 114 · 114 recorded · 113 measured · Source: the US BTS Sep · 112 · 112 recorded · 112 measured · Source: the US BTS Oct · 190 · 190 recorded · 190 measured · Source: the US BTS Nov · 219 · 219 recorded · 215 measured · Source: the US BTS Dec · 234 · 234 recorded · 234 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—154162
FebFewer than 200 measured departures—172172
Mar75.3%13.9 min223230
Apr84.7%7.3 min228232
May77.2%11.3 min237238
Jun70.9%20.8 min230231
Jul65.1%22.1 min235240
AugFewer than 200 measured departures—113114
SepFewer than 200 measured departures—112112
OctFewer than 200 measured departures—190190
Nov83.7%9.3 min215219
Dec80.3%10.2 min234234

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 78.7% 1,869
  • Delayed >15 min 20.0% 474
  • Cancelled 1.3% 31
  • 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

34
34 of 34
Flight numbersBy direction DeparturesOn time
WN379 MEM → MDW 120 89.1%
WN2249 MDW → MEM 77 76.3%
WN5317 MDW → MEM 65 75.4%
WN3955 MEM → MDW 61 95.1%
WN1646 MDW → MEM 59 86.2%
WN209 MDW → MEM 58 74.1%
WN4100 MDW → MEM 58 37.5%
WN2824 MDW → MEM 57 82.5%
WN3345 MEM → MDW 57 56.4%
WN3410 MEM → MDW 57 93.0%
WN2710 MEM → MDW 56 82.1%
WN4671 MDW → MEM 53 92.3%
WN1108 MDW → MEM 51 62.0%
WN2059 MDW → MEM 50 94.0%
WN3479 MEM → MDW 50 91.8%
WN3787 MEM → MDW 50 88.0%
WN3408 MEM → MDW 46 93.3%
WN1792 MDW → MEM 42 85.7%
WN2906 MEM → MDW 42 95.1%
WN2976 MDW → MEM 42 85.4%
WN3610 MEM → MDW 41 78.1%
WN3695 MEM → MDW 41 85.4%
WN2987 MDW → MEM 40 95.0%
WN1433 MDW → MEM 39 89.7%
WN1765 MEM → MDW 36 65.7%
WN2403 MDW → MEM 35 65.7%
WN2174 MDW → MEM 33 53.1%
WN2694 MEM → MDW 33 96.6%
WN2703 MEM → MDW 33 97.0%
WN2916 MEM → MDW 33 84.9%
WN3180 MEM → MDW 33 46.9%
WN1081 MEM → MDW 32 56.3%
WN322 MDW → MEM 32 68.8%
WN130 MEM → MDW 30 85.7%

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 121 +6.1% 3 63.6%
June 2026 119 +7.2% 1 68.9%
May 2026 124 +9.7% 0 73.4%
April 2026 120 +11.1% 0 85.0%
March 2026 113 +2.7% 7 68.1%
February 2026 86 +0.0% 0 83.7%
January 2026 74 −7.5% 6 90.5%
December 2025 116 −1.7% 0 81.9%
November 2025 104 −6.3% 4 82.7%
October 2025 116 +56.8% 0 88.8%
September 2025 112 0 91.1%
August 2025 113 1 85.0%
July 2025 114 2 66.7%
June 2025 111 0 73.0%
May 2025 113 1 81.4%
April 2025 108 4 84.3%
March 2025 110 0 82.7%
February 2025 86 0 84.9%
January 2025 80 2 76.3%
December 2024 118 0 78.8%
November 2024 111 0 84.7%
October 2024 74 0 90.5%

How to read this chart

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