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2,950 km · Domestic

Chicago Midway (MDW) – Mineta San Jose (SJC)

In July 2026, 122 flights operated between Chicago Midway and Mineta San Jose (both directions), and 64.8% 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
January6228▼ 54.8%
February5638▼ 32.1%
March61101▲ 65.6%
April85111▲ 30.6%
May92114▲ 23.9%
June140118▼ 15.7%
July158122▼ 22.8%
August109––
September104––
October64–in progress
November58––
December62––
Year to date (Jan–Jul)654632▼ 3.4%

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
January90.3%85.7%▼ 5.1%
February91.1%94.7%▲ 4.0%
March88.5%76.2%▼ 13.9%
April83.5%75.7%▼ 9.3%
May81.5%62.3%▼ 23.6%
June70.0%58.5%▼ 16.4%
July67.1%64.8%▼ 3.4%
August72.5%––
September73.1%––
October76.6%–in progress
November89.7%––
December83.9%––
Year-to-date average (Jan–Jul)81.7%74.0%▼ 9.5%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January00–
February00–
March13▲ 200.0%
April01–
May00–
June02–
July10▼ 100.0%
August1––
September0––
October0–in progress
November2––
December0––
Year to date (Jan–Jul)26▲ 200.0%

By direction

MDW → SJC

Scheduled flights
945
Flights operated
935
Cancelled
10 · 1.1%
On-time departures
71.9%

SJC → MDW

Scheduled flights
927
Flights operated
925
Cancelled
2 · 0.2%
On-time departures
79.7%

MDW → SJC and SJC → MDW counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 1,872 100.0% 75.8% 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 delay08:00–09:004.8min · 342 recorded · 342 measured
Gap to highest-delay hour8.6min08:00 ↔ 11:00
Recorded flights1,872MDW–SJC

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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 145 recorded · 145 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 116 recorded · 114 measured · Source: the US BTS 08:00 · 90.9% · 342 recorded · 342 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 128 recorded · 127 measured · Source: the US BTS 10:00 · 76.8% · 264 recorded · 263 measured · Source: the US BTS 11:00 · 66.5% · 211 recorded · 209 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 17 recorded · 17 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 42 recorded · 42 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 17 recorded · 17 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 61 recorded · 61 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 33 recorded · 33 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 75 recorded · 75 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 56 recorded · 56 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 65 recorded · 63 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 128 recorded · 125 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 23 recorded · 22 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 149 recorded · 149 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 145 recorded · 145 measured · Source: the US BTS 07:00 · Fewer than 200 measured departures · 116 recorded · 114 measured · Source: the US BTS 08:00 · 4.8 min · 342 recorded · 342 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 128 recorded · 127 measured · Source: the US BTS 10:00 · 10.1 min · 264 recorded · 263 measured · Source: the US BTS 11:00 · 13.4 min · 211 recorded · 209 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 17 recorded · 17 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 42 recorded · 42 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 17 recorded · 17 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 61 recorded · 61 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 33 recorded · 33 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 75 recorded · 75 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 56 recorded · 56 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 65 recorded · 63 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 128 recorded · 125 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 23 recorded · 22 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 149 recorded · 149 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 · No observations · 0 recorded · 0 measured · Source: the US BTS 06:00 · 145 · 145 recorded · 145 measured · Source: the US BTS 07:00 · 116 · 116 recorded · 114 measured · Source: the US BTS 08:00 · 342 · 342 recorded · 342 measured · Source: the US BTS 09:00 · 128 · 128 recorded · 127 measured · Source: the US BTS 10:00 · 264 · 264 recorded · 263 measured · Source: the US BTS 11:00 · 211 · 211 recorded · 209 measured · Source: the US BTS 12:00 · 17 · 17 recorded · 17 measured · Source: the US BTS 13:00 · 42 · 42 recorded · 42 measured · Source: the US BTS 14:00 · 17 · 17 recorded · 17 measured · Source: the US BTS 15:00 · 61 · 61 recorded · 61 measured · Source: the US BTS 16:00 · 33 · 33 recorded · 33 measured · Source: the US BTS 17:00 · 75 · 75 recorded · 75 measured · Source: the US BTS 18:00 · 56 · 56 recorded · 56 measured · Source: the US BTS 19:00 · 65 · 65 recorded · 63 measured · Source: the US BTS 20:00 · 128 · 128 recorded · 125 measured · Source: the US BTS 21:00 · 23 · 23 recorded · 22 measured · Source: the US BTS 22:00 · 149 · 149 recorded · 149 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———
05:00No observations———
06:00Fewer than 200 measured departures—145145
07:00Fewer than 200 measured departures—114116
08:0090.9%4.8 min342342
09:00Fewer than 200 measured departures—127128
10:0076.8%10.1 min263264
11:0066.5%13.4 min209211
12:00Fewer than 200 measured departures—1717
13:00Fewer than 200 measured departures—4242
14:00Fewer than 200 measured departures—1717
15:00Fewer than 200 measured departures—6161
16:00Fewer than 200 measured departures—3333
17:00Fewer than 200 measured departures—7575
18:00Fewer than 200 measured departures—5656
19:00Fewer than 200 measured departures—6365
20:00Fewer than 200 measured departures—125128
21:00Fewer than 200 measured departures—2223
22:00Fewer than 200 measured departures—149149
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% · 288 recorded · 286 measured · Source: the US BTS Tuesday · 79.3% · 282 recorded · 280 measured · Source: the US BTS Wednesday · 79.9% · 280 recorded · 279 measured · Source: the US BTS Thursday · 71.7% · 288 recorded · 286 measured · Source: the US BTS Friday · 75.7% · 288 recorded · 288 measured · Source: the US BTS Saturday · 81.1% · 220 recorded · 217 measured · Source: the US BTS Sunday · 69.6% · 226 recorded · 224 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 · 14.4 min · 288 recorded · 286 measured · Source: the US BTS Tuesday · 11.3 min · 282 recorded · 280 measured · Source: the US BTS Wednesday · 8.0 min · 280 recorded · 279 measured · Source: the US BTS Thursday · 12.2 min · 288 recorded · 286 measured · Source: the US BTS Friday · 11.3 min · 288 recorded · 288 measured · Source: the US BTS Saturday · 9.5 min · 220 recorded · 217 measured · Source: the US BTS Sunday · 17.1 min · 226 recorded · 224 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 · 288 · 288 recorded · 286 measured · Source: the US BTS Tuesday · 282 · 282 recorded · 280 measured · Source: the US BTS Wednesday · 280 · 280 recorded · 279 measured · Source: the US BTS Thursday · 288 · 288 recorded · 286 measured · Source: the US BTS Friday · 288 · 288 recorded · 288 measured · Source: the US BTS Saturday · 220 · 220 recorded · 217 measured · Source: the US BTS Sunday · 226 · 226 recorded · 224 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday73.1%14.4 min286288
Tuesday79.3%11.3 min280282
Wednesday79.9%8.0 min279280
Thursday71.7%12.2 min286288
Friday75.7%11.3 min288288
Saturday81.1%9.5 min217220
Sunday69.6%17.1 min224226

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 · 90 recorded · 90 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 94 recorded · 94 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 166 recorded · 162 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 197 recorded · 196 measured · Source: the US BTS May · 70.9% · 206 recorded · 206 measured · Source: the US BTS Jun · 64.7% · 260 recorded · 258 measured · Source: the US BTS Jul · 66.1% · 281 recorded · 280 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 110 recorded · 109 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 104 recorded · 104 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 118 recorded · 118 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 122 recorded · 120 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 124 recorded · 123 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 · 90 recorded · 90 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 94 recorded · 94 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 166 recorded · 162 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 197 recorded · 196 measured · Source: the US BTS May · 14.6 min · 206 recorded · 206 measured · Source: the US BTS Jun · 17.6 min · 260 recorded · 258 measured · Source: the US BTS Jul · 18.7 min · 281 recorded · 280 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 110 recorded · 109 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 104 recorded · 104 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 118 recorded · 118 measured · Source: the US BTS Nov · Fewer than 200 measured departures · 122 recorded · 120 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 124 recorded · 123 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 · 90 · 90 recorded · 90 measured · Source: the US BTS Feb · 94 · 94 recorded · 94 measured · Source: the US BTS Mar · 166 · 166 recorded · 162 measured · Source: the US BTS Apr · 197 · 197 recorded · 196 measured · Source: the US BTS May · 206 · 206 recorded · 206 measured · Source: the US BTS Jun · 260 · 260 recorded · 258 measured · Source: the US BTS Jul · 281 · 281 recorded · 280 measured · Source: the US BTS Aug · 110 · 110 recorded · 109 measured · Source: the US BTS Sep · 104 · 104 recorded · 104 measured · Source: the US BTS Oct · 118 · 118 recorded · 118 measured · Source: the US BTS Nov · 122 · 122 recorded · 120 measured · Source: the US BTS Dec · 124 · 124 recorded · 123 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—9090
FebFewer than 200 measured departures—9494
MarFewer than 200 measured departures—162166
AprFewer than 200 measured departures—196197
May70.9%14.6 min206206
Jun64.7%17.6 min258260
Jul66.1%18.7 min280281
AugFewer than 200 measured departures—109110
SepFewer than 200 measured departures—104104
OctFewer than 200 measured departures—118118
NovFewer than 200 measured departures—120122
DecFewer than 200 measured departures—123124

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 75.3% 1,409
  • Delayed >15 min 24.1% 451
  • Cancelled 0.6% 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

29
29 of 29
Flight numbersBy direction DeparturesOn time
WN950 SJC → MDW 114 90.4%
WN781 MDW → SJC 64 87.1%
WN3730 SJC → MDW 63 88.9%
WN2409 SJC → MDW 61 91.7%
WN3803 SJC → MDW 58 89.7%
WN4252 SJC → MDW 58 86.2%
WN1245 MDW → SJC 53 77.4%
WN3869 SJC → MDW 52 71.2%
WN3917 MDW → SJC 51 70.6%
WN1284 MDW → SJC 50 84.0%
WN3886 SJC → MDW 50 76.0%
WN4357 SJC → MDW 50 54.0%
WN3752 MDW → SJC 49 83.7%
WN1526 MDW → SJC 42 92.9%
WN1648 SJC → MDW 42 73.8%
WN1877 SJC → MDW 42 42.9%
WN2546 SJC → MDW 42 57.1%
WN3762 MDW → SJC 42 56.1%
WN4508 SJC → MDW 42 59.5%
WN2659 MDW → SJC 41 15.0%
WN2958 MDW → SJC 39 74.4%
WN1454 MDW → SJC 37 56.8%
WN3919 MDW → SJC 35 57.1%
WN2008 MDW → SJC 34 76.5%
WN1039 SJC → MDW 33 90.9%
WN3372 MDW → SJC 33 78.1%
WN4447 SJC → MDW 32 96.9%
WN3401 SJC → MDW 31 83.9%
WN2077 SJC → MDW 30 93.3%

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 122 −22.8% 0 64.8%
June 2026 118 −15.7% 2 58.5%
May 2026 114 +23.9% 0 62.3%
April 2026 111 +30.6% 1 75.7%
March 2026 101 +65.6% 3 76.2%
February 2026 38 −32.1% 0 94.7%
January 2026 28 −54.8% 0 85.7%
December 2025 62 +1.6% 0 83.9%
November 2025 58 −6.5% 2 89.7%
October 2025 64 +18.5% 0 76.6%
September 2025 104 0 73.1%
August 2025 109 1 72.5%
July 2025 158 1 67.1%
June 2025 140 0 70.0%
May 2025 92 0 81.5%
April 2025 85 0 83.5%
March 2025 61 1 88.5%
February 2025 56 0 91.1%
January 2025 62 0 90.3%
December 2024 61 1 77.0%
November 2024 62 0 90.3%
October 2024 54 0 87.0%

How to read this chart

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