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2,874 km · Domestic

Chicago Midway (MDW) – Sacramento (SMF)

In July 2026, 168 flights operated between Chicago Midway and Sacramento (both directions), and 59.5% 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
January62620.0%
February6056▼ 6.7%
March64114▲ 78.1%
April93120▲ 29.0%
May105124▲ 18.1%
June146157▲ 7.5%
July159168▲ 5.7%
August156––
September156––
October110–in progress
November59––
December62––
Year to date (Jan–Jul)689801▲ 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
January79.0%83.9%▲ 6.2%
February95.0%87.5%▼ 7.9%
March79.7%77.2%▼ 3.1%
April84.9%80.0%▼ 5.8%
May79.0%72.6%▼ 8.1%
June71.9%63.1%▼ 12.2%
July66.0%59.5%▼ 9.8%
August71.8%––
September78.2%––
October82.7%–in progress
November93.2%––
December66.1%––
Year-to-date average (Jan–Jul)79.4%74.8%▼ 5.7%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January00–
February00–
March03–
April10▼ 100.0%
May10▼ 100.0%
June01–
July12▲ 100.0%
August0––
September0––
October0–in progress
November2––
December0––
Year to date (Jan–Jul)36▲ 100.0%

By direction

MDW → SMF

Scheduled flights
1,117
Flights operated
1,109
Cancelled
8 · 0.7%
On-time departures
68.6%

SMF → MDW

Scheduled flights
1,119
Flights operated
1,116
Cancelled
3 · 0.3%
On-time departures
82.3%

MDW → SMF and SMF → MDW counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 2,236 100.0% 75.5% 11

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 delay06:00–07:003.6min · 205 recorded · 205 measured
Gap to highest-delay hour10.4min06:00 ↔ 11:00
Recorded flights2,236MDW–SMF

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 · 93.3% · 224 recorded · 223 measured · Source: the US BTS 06:00 · 94.2% · 205 recorded · 205 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 121 recorded · 120 measured · Source: the US BTS 08:00 · 90.4% · 270 recorded · 270 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 142 recorded · 141 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 170 recorded · 168 measured · Source: the US BTS 11:00 · 68.1% · 212 recorded · 210 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 86 recorded · 86 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 130 recorded · 130 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 68 recorded · 68 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 56 recorded · 56 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 24 recorded · 24 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 57 recorded · 57 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 43 recorded · 43 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 7 recorded · 7 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 184 recorded · 180 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 35 recorded · 35 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 150 recorded · 150 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 · 3.9 min · 224 recorded · 223 measured · Source: the US BTS 06:00 · 3.6 min · 205 recorded · 205 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 121 recorded · 120 measured · Source: the US BTS 08:00 · 3.6 min · 270 recorded · 270 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 142 recorded · 141 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 170 recorded · 168 measured · Source: the US BTS 11:00 · 14.0 min · 212 recorded · 210 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 86 recorded · 86 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 130 recorded · 130 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 68 recorded · 68 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 56 recorded · 56 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 24 recorded · 24 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 57 recorded · 57 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 43 recorded · 43 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 7 recorded · 7 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 52 recorded · 52 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 184 recorded · 180 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 35 recorded · 35 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 150 recorded · 150 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 · 224 · 224 recorded · 223 measured · Source: the US BTS 06:00 · 205 · 205 recorded · 205 measured · Source: the US BTS 07:00 · 121 · 121 recorded · 120 measured · Source: the US BTS 08:00 · 270 · 270 recorded · 270 measured · Source: the US BTS 09:00 · 142 · 142 recorded · 141 measured · Source: the US BTS 10:00 · 170 · 170 recorded · 168 measured · Source: the US BTS 11:00 · 212 · 212 recorded · 210 measured · Source: the US BTS 12:00 · 86 · 86 recorded · 86 measured · Source: the US BTS 13:00 · 130 · 130 recorded · 130 measured · Source: the US BTS 14:00 · 68 · 68 recorded · 68 measured · Source: the US BTS 15:00 · 56 · 56 recorded · 56 measured · Source: the US BTS 16:00 · 24 · 24 recorded · 24 measured · Source: the US BTS 17:00 · 57 · 57 recorded · 57 measured · Source: the US BTS 18:00 · 43 · 43 recorded · 43 measured · Source: the US BTS 19:00 · 7 · 7 recorded · 7 measured · Source: the US BTS 20:00 · 52 · 52 recorded · 52 measured · Source: the US BTS 21:00 · 184 · 184 recorded · 180 measured · Source: the US BTS 22:00 · 35 · 35 recorded · 35 measured · Source: the US BTS 23:00 · 150 · 150 recorded · 150 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———
05:0093.3%3.9 min223224
06:0094.2%3.6 min205205
07:00Fewer than 200 measured departures—120121
08:0090.4%3.6 min270270
09:00Fewer than 200 measured departures—141142
10:00Fewer than 200 measured departures—168170
11:0068.1%14.0 min210212
12:00Fewer than 200 measured departures—8686
13:00Fewer than 200 measured departures—130130
14:00Fewer than 200 measured departures—6868
15:00Fewer than 200 measured departures—5656
16:00Fewer than 200 measured departures—2424
17:00Fewer than 200 measured departures—5757
18:00Fewer than 200 measured departures—4343
19:00Fewer than 200 measured departures—77
20:00Fewer than 200 measured departures—5252
21:00Fewer than 200 measured departures—180184
22:00Fewer than 200 measured departures—3535
23:00Fewer than 200 measured departures—150150

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 72.2% · 344 recorded · 342 measured · Source: the US BTS Tuesday · 80.5% · 346 recorded · 343 measured · Source: the US BTS Wednesday · 82.3% · 347 recorded · 345 measured · Source: the US BTS Thursday · 72.1% · 350 recorded · 348 measured · Source: the US BTS Friday · 72.3% · 348 recorded · 347 measured · Source: the US BTS Saturday · 76.6% · 270 recorded · 269 measured · Source: the US BTS Sunday · 71.0% · 231 recorded · 231 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 · 14.3 min · 344 recorded · 342 measured · Source: the US BTS Tuesday · 9.1 min · 346 recorded · 343 measured · Source: the US BTS Wednesday · 10.0 min · 347 recorded · 345 measured · Source: the US BTS Thursday · 15.0 min · 350 recorded · 348 measured · Source: the US BTS Friday · 16.1 min · 348 recorded · 347 measured · Source: the US BTS Saturday · 10.0 min · 270 recorded · 269 measured · Source: the US BTS Sunday · 15.6 min · 231 recorded · 231 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 · 344 · 344 recorded · 342 measured · Source: the US BTS Tuesday · 346 · 346 recorded · 343 measured · Source: the US BTS Wednesday · 347 · 347 recorded · 345 measured · Source: the US BTS Thursday · 350 · 350 recorded · 348 measured · Source: the US BTS Friday · 348 · 348 recorded · 347 measured · Source: the US BTS Saturday · 270 · 270 recorded · 269 measured · Source: the US BTS Sunday · 231 · 231 recorded · 231 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday72.2%14.3 min342344
Tuesday80.5%9.1 min343346
Wednesday82.3%10.0 min345347
Thursday72.1%15.0 min348350
Friday72.3%16.1 min347348
Saturday76.6%10.0 min269270
Sunday71.0%15.6 min231231

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 · 124 recorded · 124 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 116 recorded · 116 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 181 recorded · 178 measured · Source: the US BTS Apr · 82.2% · 214 recorded · 213 measured · Source: the US BTS May · 75.6% · 230 recorded · 229 measured · Source: the US BTS Jun · 67.3% · 304 recorded · 303 measured · Source: the US BTS Jul · 62.7% · 330 recorded · 327 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 156 recorded · 156 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 156 recorded · 156 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 178 recorded · 178 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 123 recorded · 121 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 124 recorded · 124 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 · Fewer than 200 measured departures · 124 recorded · 124 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 116 recorded · 116 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 181 recorded · 178 measured · Source: the US BTS Apr · 8.8 min · 214 recorded · 213 measured · Source: the US BTS May · 10.8 min · 230 recorded · 229 measured · Source: the US BTS Jun · 18.5 min · 304 recorded · 303 measured · Source: the US BTS Jul · 20.6 min · 330 recorded · 327 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 156 recorded · 156 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 156 recorded · 156 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 178 recorded · 178 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 123 recorded · 121 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 124 recorded · 124 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 · 124 · 124 recorded · 124 measured · Source: the US BTS Feb · 116 · 116 recorded · 116 measured · Source: the US BTS Mar · 181 · 181 recorded · 178 measured · Source: the US BTS Apr · 214 · 214 recorded · 213 measured · Source: the US BTS May · 230 · 230 recorded · 229 measured · Source: the US BTS Jun · 304 · 304 recorded · 303 measured · Source: the US BTS Jul · 330 · 330 recorded · 327 measured · Source: the US BTS Aug · 156 · 156 recorded · 156 measured · Source: the US BTS Sep · 156 · 156 recorded · 156 measured · Source: the US BTS Oct · 178 · 178 recorded · 178 measured · Source: the US BTS Nov · 123 · 123 recorded · 121 measured · Source: the US BTS Dec · 124 · 124 recorded · 124 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—124124
FebFewer than 200 measured departures—116116
MarFewer than 200 measured departures—178181
Apr82.2%8.8 min213214
May75.6%10.8 min229230
Jun67.3%18.5 min303304
Jul62.7%20.6 min327330
AugFewer than 200 measured departures—156156
SepFewer than 200 measured departures—156156
OctFewer than 200 measured departures—178178
NovFewer than 200 measured departures—121123
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 75.1% 1,679
  • Delayed >15 min 24.4% 546
  • Cancelled 0.5% 11
  • 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

29
29 of 29
Flight numbersBy direction DeparturesOn time
WN2358 MDW → SMF 88 86.4%
WN3321 MDW → SMF 60 31.7%
WN2766 MDW → SMF 58 89.7%
WN3388 MDW → SMF 58 82.8%
WN3417 MDW → SMF 58 55.2%
WN3496 SMF → MDW 58 93.1%
WN3802 SMF → MDW 58 75.9%
WN4121 MDW → SMF 57 30.9%
WN2728 SMF → MDW 56 91.1%
WN1587 SMF → MDW 52 94.2%
WN1790 MDW → SMF 50 90.0%
WN2093 SMF → MDW 50 92.0%
WN2406 MDW → SMF 50 64.0%
WN3732 SMF → MDW 50 96.0%
WN3966 SMF → MDW 50 78.0%
WN455 SMF → MDW 50 72.0%
WN2409 MDW → SMF 49 46.9%
WN1287 MDW → SMF 46 86.7%
WN2485 SMF → MDW 46 91.3%
WN2502 MDW → SMF 43 66.7%
WN3451 SMF → MDW 42 73.8%
WN3769 SMF → MDW 42 63.4%
WN4267 SMF → MDW 42 61.9%
WN1048 SMF → MDW 33 84.4%
WN2094 MDW → SMF 33 63.6%
WN2718 SMF → MDW 33 81.8%
WN1030 MDW → SMF 32 35.5%
WN198 MDW → SMF 31 83.9%
WN4523 SMF → MDW 31 87.1%

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 168 +5.7% 2 59.5%
June 2026 157 +7.5% 1 63.1%
May 2026 124 +18.1% 0 72.6%
April 2026 120 +29.0% 0 80.0%
March 2026 114 +78.1% 3 77.2%
February 2026 56 −6.7% 0 87.5%
January 2026 62 +0.0% 0 83.9%
December 2025 62 +0.0% 0 66.1%
November 2025 59 −4.8% 2 93.2%
October 2025 110 +61.8% 0 82.7%
September 2025 156 0 78.2%
August 2025 156 0 71.8%
July 2025 159 1 66.0%
June 2025 146 0 71.9%
May 2025 105 1 79.0%
April 2025 93 1 84.9%
March 2025 64 0 79.7%
February 2025 60 0 95.0%
January 2025 62 0 79.0%
December 2024 62 0 72.6%
November 2024 62 0 75.8%
October 2024 68 0 92.6%

How to read this chart

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