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1,905 km · Domestic

Chicago Midway (MDW) – Miami (MIA)

In July 2026, 62 flights operated between Chicago Midway and Miami (both directions), and 56.5% 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
January116101▼ 12.9%
February12676▼ 39.7%
March171154▼ 9.9%
April130114▼ 12.3%
May1061060.0%
June8062▼ 22.5%
July7762▼ 19.5%
August58––
September50––
October48–in progress
November72––
December89––
Year to date (Jan–Jul)806675▼ 16.3%

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
January78.4%71.3%▼ 9.1%
February77.0%69.7%▼ 9.5%
March78.4%66.2%▼ 15.6%
April84.6%73.7%▼ 12.9%
May82.1%67.0%▼ 18.4%
June75.0%71.0%▼ 5.3%
July83.1%56.5%▼ 32.0%
August70.7%––
September84.0%––
October81.3%–in progress
November84.7%––
December65.2%––
Year-to-date average (Jan–Jul)79.8%67.9%▼ 14.9%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January01–
February20▼ 100.0%
March34▲ 33.3%
April02–
May00–
June00–
July10▼ 100.0%
August0––
September0––
October0–in progress
November6––
December1––
Year to date (Jan–Jul)67▲ 16.7%

Airlines on this route

  1. Southwest Airlines 81.3%
  2. Frontier Airlines 18.7%

Oct 1, 2024 – Jul 31, 2026

By direction

MDW → MIA

Scheduled flights
1,036
Flights operated
1,027
Cancelled
9 · 0.9%
On-time departures
75.9%

MIA → MDW

Scheduled flights
1,035
Flights operated
1,022
Cancelled
13 · 1.3%
On-time departures
73.2%

MDW → MIA and MIA → MDW counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 1,684 81.3% 73.8% 15
Frontier Airlines F9 387 18.7% 77.9% 7

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 delay09:00–10:007.4min · 202 recorded · 201 measured
Gap to highest-delay hour18.2min09:00 ↔ 18:00
Recorded flights2,071MDW–MIA

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 · 36 recorded · 36 measured · Source: the US BTS 06:00 · 89.7% · 238 recorded · 232 measured · Source: the US BTS 07:00 · 86.7% · 213 recorded · 211 measured · Source: the US BTS 08:00 · 75.0% · 200 recorded · 200 measured · Source: the US BTS 09:00 · 87.6% · 202 recorded · 201 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 10 recorded · 10 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 124 recorded · 124 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 138 recorded · 136 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 153 recorded · 152 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 78 recorded · 78 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 121 recorded · 121 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 157 recorded · 156 measured · Source: the US BTS 18:00 · 56.8% · 224 recorded · 222 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 73 recorded · 68 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 45 recorded · 44 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 7 recorded · 6 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 · 36 recorded · 36 measured · Source: the US BTS 06:00 · 8.1 min · 238 recorded · 232 measured · Source: the US BTS 07:00 · 12.4 min · 213 recorded · 211 measured · Source: the US BTS 08:00 · 12.7 min · 200 recorded · 200 measured · Source: the US BTS 09:00 · 7.4 min · 202 recorded · 201 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 10 recorded · 10 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 124 recorded · 124 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 138 recorded · 136 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 153 recorded · 152 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 78 recorded · 78 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 121 recorded · 121 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 157 recorded · 156 measured · Source: the US BTS 18:00 · 25.6 min · 224 recorded · 222 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 73 recorded · 68 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 45 recorded · 44 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 7 recorded · 6 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 · 36 · 36 recorded · 36 measured · Source: the US BTS 06:00 · 238 · 238 recorded · 232 measured · Source: the US BTS 07:00 · 213 · 213 recorded · 211 measured · Source: the US BTS 08:00 · 200 · 200 recorded · 200 measured · Source: the US BTS 09:00 · 202 · 202 recorded · 201 measured · Source: the US BTS 10:00 · 10 · 10 recorded · 10 measured · Source: the US BTS 11:00 · 124 · 124 recorded · 124 measured · Source: the US BTS 12:00 · 138 · 138 recorded · 136 measured · Source: the US BTS 13:00 · 52 · 52 recorded · 52 measured · Source: the US BTS 14:00 · 153 · 153 recorded · 152 measured · Source: the US BTS 15:00 · 78 · 78 recorded · 78 measured · Source: the US BTS 16:00 · 121 · 121 recorded · 121 measured · Source: the US BTS 17:00 · 157 · 157 recorded · 156 measured · Source: the US BTS 18:00 · 224 · 224 recorded · 222 measured · Source: the US BTS 19:00 · 73 · 73 recorded · 68 measured · Source: the US BTS 20:00 · 45 · 45 recorded · 44 measured · Source: the US BTS 21:00 · 7 · 7 recorded · 6 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

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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———
05:00Fewer than 200 measured departures—3636
06:0089.7%8.1 min232238
07:0086.7%12.4 min211213
08:0075.0%12.7 min200200
09:0087.6%7.4 min201202
10:00Fewer than 200 measured departures—1010
11:00Fewer than 200 measured departures—124124
12:00Fewer than 200 measured departures—136138
13:00Fewer than 200 measured departures—5252
14:00Fewer than 200 measured departures—152153
15:00Fewer than 200 measured departures—7878
16:00Fewer than 200 measured departures—121121
17:00Fewer than 200 measured departures—156157
18:0056.8%25.6 min222224
19:00Fewer than 200 measured departures—6873
20:00Fewer than 200 measured departures—4445
21:00Fewer than 200 measured departures—67
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 · 73.5% · 313 recorded · 309 measured · Source: the US BTS Tuesday · Fewer than 200 measured departures · 192 recorded · 190 measured · Source: the US BTS Wednesday · Fewer than 200 measured departures · 190 recorded · 190 measured · Source: the US BTS Thursday · 74.8% · 306 recorded · 302 measured · Source: the US BTS Friday · 74.8% · 302 recorded · 301 measured · Source: the US BTS Saturday · 71.8% · 426 recorded · 419 measured · Source: the US BTS Sunday · 68.9% · 342 recorded · 338 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 · 16.9 min · 313 recorded · 309 measured · Source: the US BTS Tuesday · Fewer than 200 measured departures · 192 recorded · 190 measured · Source: the US BTS Wednesday · Fewer than 200 measured departures · 190 recorded · 190 measured · Source: the US BTS Thursday · 12.7 min · 306 recorded · 302 measured · Source: the US BTS Friday · 16.9 min · 302 recorded · 301 measured · Source: the US BTS Saturday · 16.9 min · 426 recorded · 419 measured · Source: the US BTS Sunday · 21.1 min · 342 recorded · 338 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 · 313 · 313 recorded · 309 measured · Source: the US BTS Tuesday · 192 · 192 recorded · 190 measured · Source: the US BTS Wednesday · 190 · 190 recorded · 190 measured · Source: the US BTS Thursday · 306 · 306 recorded · 302 measured · Source: the US BTS Friday · 302 · 302 recorded · 301 measured · Source: the US BTS Saturday · 426 · 426 recorded · 419 measured · Source: the US BTS Sunday · 342 · 342 recorded · 338 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday73.5%16.9 min309313
TuesdayFewer than 200 measured departures—190192
WednesdayFewer than 200 measured departures—190190
Thursday74.8%12.7 min302306
Friday74.8%16.9 min301302
Saturday71.8%16.9 min419426
Sunday68.9%21.1 min338342

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 · 75.1% · 218 recorded · 217 measured · Source: the US BTS Feb · 74.3% · 204 recorded · 202 measured · Source: the US BTS Mar · 72.6% · 332 recorded · 325 measured · Source: the US BTS Apr · 79.5% · 246 recorded · 244 measured · Source: the US BTS May · 74.5% · 212 recorded · 212 measured · Source: the US BTS Jun · Fewer than 200 measured departures · 142 recorded · 142 measured · Source: the US BTS Jul · Fewer than 200 measured departures · 140 recorded · 139 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 58 recorded · 58 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 50 recorded · 50 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 86 recorded · 86 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 172 recorded · 166 measured · Source: the US BTS Dec · 68.3% · 211 recorded · 208 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
Jan · 13.5 min · 218 recorded · 217 measured · Source: the US BTS Feb · 21.0 min · 204 recorded · 202 measured · Source: the US BTS Mar · 19.1 min · 332 recorded · 325 measured · Source: the US BTS Apr · 9.2 min · 246 recorded · 244 measured · Source: the US BTS May · 19.3 min · 212 recorded · 212 measured · Source: the US BTS Jun · Fewer than 200 measured departures · 142 recorded · 142 measured · Source: the US BTS Jul · Fewer than 200 measured departures · 140 recorded · 139 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 58 recorded · 58 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 50 recorded · 50 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 86 recorded · 86 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 172 recorded · 166 measured · Source: the US BTS Dec · 19.3 min · 211 recorded · 208 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 · 218 · 218 recorded · 217 measured · Source: the US BTS Feb · 204 · 204 recorded · 202 measured · Source: the US BTS Mar · 332 · 332 recorded · 325 measured · Source: the US BTS Apr · 246 · 246 recorded · 244 measured · Source: the US BTS May · 212 · 212 recorded · 212 measured · Source: the US BTS Jun · 142 · 142 recorded · 142 measured · Source: the US BTS Jul · 140 · 140 recorded · 139 measured · Source: the US BTS Aug · 58 · 58 recorded · 58 measured · Source: the US BTS Sep · 50 · 50 recorded · 50 measured · Source: the US BTS Oct · 86 · 86 recorded · 86 measured · Source: the US BTS Nov · 172 · 172 recorded · 166 measured · Source: the US BTS Dec · 211 · 211 recorded · 208 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan75.1%13.5 min217218
Feb74.3%21.0 min202204
Mar72.6%19.1 min325332
Apr79.5%9.2 min244246
May74.5%19.3 min212212
JunFewer than 200 measured departures—142142
JulFewer than 200 measured departures—139140
AugFewer than 200 measured departures—5858
SepFewer than 200 measured departures—5050
OctFewer than 200 measured departures—8686
NovFewer than 200 measured departures—166172
Dec68.3%19.3 min208211

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 73.7% 1,527
  • Delayed >15 min 25.2% 522
  • Cancelled 1.1% 22
  • 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

24
24 of 24
Flight numbersBy direction DeparturesOn time
F992109 MIA → MDW 171 76.9%
F992110 MDW → MIA 155 79.9%
WN3476 MIA → MDW 96 64.6%
WN4156 MDW → MIA 81 80.3%
WN3679 MIA → MDW 63 71.0%
WN174 MIA → MDW 61 90.0%
WN3736 MDW → MIA 59 79.3%
WN1645 MDW → MIA 57 71.9%
WN1686 MDW → MIA 57 87.7%
WN2930 MIA → MDW 57 63.2%
WN2464 MDW → MIA 50 66.0%
WN2529 MIA → MDW 47 70.2%
WN3558 MDW → MIA 43 65.1%
WN1478 MIA → MDW 42 97.6%
WN1453 MDW → MIA 40 57.5%
WN3722 MDW → MIA 40 75.0%
WN1352 MIA → MDW 39 33.3%
WN3230 MIA → MDW 39 87.2%
F992456 MDW → MIA 34 81.3%
WN1277 MDW → MIA 33 72.7%
WN1982 MIA → MDW 33 78.1%
WN2013 MDW → MIA 33 72.7%
WN2096 MIA → MDW 33 76.7%
WN2176 MDW → MIA 33 78.8%

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 62 −19.5% 0 56.5%
June 2026 62 −22.5% 0 71.0%
May 2026 106 +0.0% 0 67.0%
April 2026 114 −12.3% 2 73.7%
March 2026 154 −9.9% 4 66.2%
February 2026 76 −39.7% 0 69.7%
January 2026 101 −12.9% 1 71.3%
December 2025 89 −25.2% 1 65.2%
November 2025 72 −23.4% 6 84.7%
October 2025 48 +26.3% 0 81.3%
September 2025 50 0 84.0%
August 2025 58 0 70.7%
July 2025 77 1 83.1%
June 2025 80 0 75.0%
May 2025 106 0 82.1%
April 2025 130 0 84.6%
March 2025 171 3 78.4%
February 2025 126 2 77.0%
January 2025 116 0 78.4%
December 2024 119 2 70.6%
November 2024 94 0 68.1%
October 2024 38 0 89.5%

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