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2,442 km · Domestic

Harry Reid (LAS) – Chicago Midway (MDW)

In July 2026, 403 flights operated between Harry Reid and Chicago Midway (both directions), and 62.8% 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
January380322▼ 15.3%
February367279▼ 24.0%
March481382▼ 20.6%
April506381▼ 24.7%
May466401▼ 13.9%
June503386▼ 23.3%
July506403▼ 20.4%
August429––
September424––
October418–in progress
November342––
December371––
Year to date (Jan–Jul)3,2092,554▼ 20.4%

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
January82.1%77.3%▼ 5.8%
February77.4%69.9%▼ 9.7%
March76.5%57.1%▼ 25.4%
April76.7%70.6%▼ 8.0%
May77.7%63.8%▼ 17.9%
June71.0%54.1%▼ 23.8%
July62.5%62.8%▲ 0.5%
August76.0%––
September75.9%––
October74.9%–in progress
November74.6%––
December70.9%––
Year-to-date average (Jan–Jul)74.8%65.1%▼ 13.0%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January00–
February20▼ 100.0%
March68▲ 33.3%
April15▲ 400.0%
May01–
June52▼ 60.0%
July71▼ 85.7%
August2––
September1––
October0–in progress
November15––
December0––
Year to date (Jan–Jul)2117▼ 19.0%

Airlines on this route

  1. Southwest Airlines 96.5%
  2. Frontier Airlines 3.4%
  3. Allegiant Air 0.0%

Oct 1, 2024 – Jul 31, 2026

By direction

LAS → MDW

Scheduled flights
4,538
Flights operated
4,511
Cancelled
27 · 0.6%
On-time departures
71.6%

MDW → LAS

Scheduled flights
4,492
Flights operated
4,461
Cancelled
31 · 0.7%
On-time departures
73.8%

LAS → MDW and MDW → LAS counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Southwest Airlines WN 8,717 96.5% 72.6% 53
Frontier Airlines F9 309 3.4% 75.7% 5
Allegiant Air G4 4 0.0% 50.0% 0

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 delay06:00–07:000.6min · 681 recorded · 680 measured
Gap to highest-delay hour27.0min06:00 ↔ 19:00
Recorded flights9,030LAS–MDW

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 · 92.9% · 664 recorded · 659 measured · Source: the US BTS 06:00 · 95.2% · 681 recorded · 680 measured · Source: the US BTS 07:00 · 91.6% · 644 recorded · 642 measured · Source: the US BTS 08:00 · 85.1% · 554 recorded · 552 measured · Source: the US BTS 09:00 · 82.2% · 493 recorded · 489 measured · Source: the US BTS 10:00 · 75.6% · 400 recorded · 398 measured · Source: the US BTS 11:00 · 73.1% · 641 recorded · 640 measured · Source: the US BTS 12:00 · 64.8% · 491 recorded · 483 measured · Source: the US BTS 13:00 · 65.5% · 391 recorded · 388 measured · Source: the US BTS 14:00 · 65.2% · 376 recorded · 373 measured · Source: the US BTS 15:00 · 56.6% · 487 recorded · 484 measured · Source: the US BTS 16:00 · 60.0% · 619 recorded · 615 measured · Source: the US BTS 17:00 · 59.7% · 542 recorded · 538 measured · Source: the US BTS 18:00 · 54.7% · 520 recorded · 519 measured · Source: the US BTS 19:00 · 54.6% · 327 recorded · 324 measured · Source: the US BTS 20:00 · 60.9% · 319 recorded · 317 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 · 120 recorded · 118 measured · Source: the US BTS 23:00 · 76.8% · 577 recorded · 573 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 · 1.0 min · 664 recorded · 659 measured · Source: the US BTS 06:00 · 0.6 min · 681 recorded · 680 measured · Source: the US BTS 07:00 · 3.6 min · 644 recorded · 642 measured · Source: the US BTS 08:00 · 6.5 min · 554 recorded · 552 measured · Source: the US BTS 09:00 · 7.9 min · 493 recorded · 489 measured · Source: the US BTS 10:00 · 13.5 min · 400 recorded · 398 measured · Source: the US BTS 11:00 · 13.7 min · 641 recorded · 640 measured · Source: the US BTS 12:00 · 19.0 min · 491 recorded · 483 measured · Source: the US BTS 13:00 · 18.4 min · 391 recorded · 388 measured · Source: the US BTS 14:00 · 18.6 min · 376 recorded · 373 measured · Source: the US BTS 15:00 · 23.8 min · 487 recorded · 484 measured · Source: the US BTS 16:00 · 23.9 min · 619 recorded · 615 measured · Source: the US BTS 17:00 · 19.7 min · 542 recorded · 538 measured · Source: the US BTS 18:00 · 26.8 min · 520 recorded · 519 measured · Source: the US BTS 19:00 · 27.6 min · 327 recorded · 324 measured · Source: the US BTS 20:00 · 24.0 min · 319 recorded · 317 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 · 120 recorded · 118 measured · Source: the US BTS 23:00 · 12.3 min · 577 recorded · 573 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 · 664 · 664 recorded · 659 measured · Source: the US BTS 06:00 · 681 · 681 recorded · 680 measured · Source: the US BTS 07:00 · 644 · 644 recorded · 642 measured · Source: the US BTS 08:00 · 554 · 554 recorded · 552 measured · Source: the US BTS 09:00 · 493 · 493 recorded · 489 measured · Source: the US BTS 10:00 · 400 · 400 recorded · 398 measured · Source: the US BTS 11:00 · 641 · 641 recorded · 640 measured · Source: the US BTS 12:00 · 491 · 491 recorded · 483 measured · Source: the US BTS 13:00 · 391 · 391 recorded · 388 measured · Source: the US BTS 14:00 · 376 · 376 recorded · 373 measured · Source: the US BTS 15:00 · 487 · 487 recorded · 484 measured · Source: the US BTS 16:00 · 619 · 619 recorded · 615 measured · Source: the US BTS 17:00 · 542 · 542 recorded · 538 measured · Source: the US BTS 18:00 · 520 · 520 recorded · 519 measured · Source: the US BTS 19:00 · 327 · 327 recorded · 324 measured · Source: the US BTS 20:00 · 319 · 319 recorded · 317 measured · Source: the US BTS 21:00 · 184 · 184 recorded · 180 measured · Source: the US BTS 22:00 · 120 · 120 recorded · 118 measured · Source: the US BTS 23:00 · 577 · 577 recorded · 573 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———
05:0092.9%1.0 min659664
06:0095.2%0.6 min680681
07:0091.6%3.6 min642644
08:0085.1%6.5 min552554
09:0082.2%7.9 min489493
10:0075.6%13.5 min398400
11:0073.1%13.7 min640641
12:0064.8%19.0 min483491
13:0065.5%18.4 min388391
14:0065.2%18.6 min373376
15:0056.6%23.8 min484487
16:0060.0%23.9 min615619
17:0059.7%19.7 min538542
18:0054.7%26.8 min519520
19:0054.6%27.6 min324327
20:0060.9%24.0 min317319
21:00Fewer than 200 measured departures—180184
22:00Fewer than 200 measured departures—118120
23:0076.8%12.3 min573577

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 72.1% · 1,398 recorded · 1,391 measured · Source: the US BTS Tuesday · 75.8% · 1,259 recorded · 1,257 measured · Source: the US BTS Wednesday · 77.8% · 1,251 recorded · 1,244 measured · Source: the US BTS Thursday · 68.8% · 1,368 recorded · 1,361 measured · Source: the US BTS Friday · 69.8% · 1,392 recorded · 1,379 measured · Source: the US BTS Saturday · 77.2% · 974 recorded · 967 measured · Source: the US BTS Sunday · 69.5% · 1,388 recorded · 1,373 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 · 14.7 min · 1,398 recorded · 1,391 measured · Source: the US BTS Tuesday · 11.4 min · 1,259 recorded · 1,257 measured · Source: the US BTS Wednesday · 11.0 min · 1,251 recorded · 1,244 measured · Source: the US BTS Thursday · 17.4 min · 1,368 recorded · 1,361 measured · Source: the US BTS Friday · 17.3 min · 1,392 recorded · 1,379 measured · Source: the US BTS Saturday · 12.0 min · 974 recorded · 967 measured · Source: the US BTS Sunday · 16.7 min · 1,388 recorded · 1,373 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 · 1,398 · 1,398 recorded · 1,391 measured · Source: the US BTS Tuesday · 1,259 · 1,259 recorded · 1,257 measured · Source: the US BTS Wednesday · 1,251 · 1,251 recorded · 1,244 measured · Source: the US BTS Thursday · 1,368 · 1,368 recorded · 1,361 measured · Source: the US BTS Friday · 1,392 · 1,392 recorded · 1,379 measured · Source: the US BTS Saturday · 974 · 974 recorded · 967 measured · Source: the US BTS Sunday · 1,388 · 1,388 recorded · 1,373 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday72.1%14.7 min1,3911,398
Tuesday75.8%11.4 min1,2571,259
Wednesday77.8%11.0 min1,2441,251
Thursday68.8%17.4 min1,3611,368
Friday69.8%17.3 min1,3791,392
Saturday77.2%12.0 min967974
Sunday69.5%16.7 min1,3731,388

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 · 79.9% · 702 recorded · 702 measured · Source: the US BTS Feb · 74.2% · 648 recorded · 646 measured · Source: the US BTS Mar · 67.9% · 877 recorded · 863 measured · Source: the US BTS Apr · 74.1% · 893 recorded · 887 measured · Source: the US BTS May · 71.3% · 868 recorded · 867 measured · Source: the US BTS Jun · 63.7% · 896 recorded · 889 measured · Source: the US BTS Jul · 62.6% · 917 recorded · 909 measured · Source: the US BTS Aug · 76.0% · 431 recorded · 429 measured · Source: the US BTS Sep · 75.9% · 425 recorded · 424 measured · Source: the US BTS Oct · 79.3% · 754 recorded · 754 measured · Source: the US BTS Nov · 80.3% · 793 recorded · 777 measured · Source: the US BTS Dec · 74.8% · 826 recorded · 825 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 · 9.6 min · 702 recorded · 702 measured · Source: the US BTS Feb · 14.4 min · 648 recorded · 646 measured · Source: the US BTS Mar · 19.4 min · 877 recorded · 863 measured · Source: the US BTS Apr · 12.3 min · 893 recorded · 887 measured · Source: the US BTS May · 14.4 min · 868 recorded · 867 measured · Source: the US BTS Jun · 19.6 min · 896 recorded · 889 measured · Source: the US BTS Jul · 23.9 min · 917 recorded · 909 measured · Source: the US BTS Aug · 13.9 min · 431 recorded · 429 measured · Source: the US BTS Sep · 11.8 min · 425 recorded · 424 measured · Source: the US BTS Oct · 9.0 min · 754 recorded · 754 measured · Source: the US BTS Nov · 8.8 min · 793 recorded · 777 measured · Source: the US BTS Dec · 12.8 min · 826 recorded · 825 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 · 702 · 702 recorded · 702 measured · Source: the US BTS Feb · 648 · 648 recorded · 646 measured · Source: the US BTS Mar · 877 · 877 recorded · 863 measured · Source: the US BTS Apr · 893 · 893 recorded · 887 measured · Source: the US BTS May · 868 · 868 recorded · 867 measured · Source: the US BTS Jun · 896 · 896 recorded · 889 measured · Source: the US BTS Jul · 917 · 917 recorded · 909 measured · Source: the US BTS Aug · 431 · 431 recorded · 429 measured · Source: the US BTS Sep · 425 · 425 recorded · 424 measured · Source: the US BTS Oct · 754 · 754 recorded · 754 measured · Source: the US BTS Nov · 793 · 793 recorded · 777 measured · Source: the US BTS Dec · 826 · 826 recorded · 825 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan79.9%9.6 min702702
Feb74.2%14.4 min646648
Mar67.9%19.4 min863877
Apr74.1%12.3 min887893
May71.3%14.4 min867868
Jun63.7%19.6 min889896
Jul62.6%23.9 min909917
Aug76.0%13.9 min429431
Sep75.9%11.8 min424425
Oct79.3%9.0 min754754
Nov80.3%8.8 min777793
Dec74.8%12.8 min825826

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 72.2% 6,523
  • Delayed >15 min 27.1% 2,449
  • Cancelled 0.6% 58
  • 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

112
112 of 112
Flight numbersBy direction DeparturesOn time
F992329 MDW → LAS 155 76.5%
F992330 LAS → MDW 151 75.0%
WN3150 LAS → MDW 97 68.0%
WN1943 MDW → LAS 96 85.1%
WN5055 LAS → MDW 96 100.0%
WN4188 LAS → MDW 94 75.5%
WN1361 MDW → LAS 92 76.1%
WN2054 LAS → MDW 81 79.0%
WN459 MDW → LAS 75 80.0%
WN257 MDW → LAS 74 94.6%
WN943 LAS → MDW 70 81.4%
WN4911 MDW → LAS 68 82.4%
WN3212 LAS → MDW 64 74.6%
WN3204 LAS → MDW 62 69.5%
WN2651 MDW → LAS 61 91.8%
WN3341 LAS → MDW 61 65.6%
WN2042 MDW → LAS 60 80.0%
WN2909 LAS → MDW 60 52.5%
WN1778 LAS → MDW 59 74.1%
WN1267 MDW → LAS 58 67.2%
WN1422 LAS → MDW 58 93.1%
WN1429 LAS → MDW 58 86.2%
WN2171 LAS → MDW 58 89.7%
WN2276 LAS → MDW 58 63.8%
WN2395 LAS → MDW 58 74.1%
WN2674 MDW → LAS 58 89.7%
WN3200 LAS → MDW 58 15.5%
WN3464 LAS → MDW 58 27.6%
WN3840 LAS → MDW 58 67.2%
WN1138 LAS → MDW 57 55.4%
WN1182 MDW → LAS 57 89.5%
WN1230 LAS → MDW 57 78.6%
WN2794 MDW → LAS 57 73.7%
WN3198 LAS → MDW 57 82.5%
WN3285 MDW → LAS 57 96.5%
WN3422 MDW → LAS 57 52.6%
WN396 MDW → LAS 57 61.4%
WN623 MDW → LAS 55 80.0%
WN3273 LAS → MDW 54 94.4%
WN4270 LAS → MDW 53 73.6%
WN883 MDW → LAS 53 98.1%
WN3895 MDW → LAS 52 73.1%
WN4028 MDW → LAS 52 52.9%
WN908 MDW → LAS 52 78.9%
WN1556 MDW → LAS 51 86.0%
WN1987 MDW → LAS 51 42.9%
WN2480 MDW → LAS 51 70.6%
WN1036 LAS → MDW 50 78.0%
WN1639 MDW → LAS 50 57.1%
WN1833 LAS → MDW 50 86.0%
WN224 MDW → LAS 50 60.0%
WN2273 LAS → MDW 50 40.0%
WN2302 MDW → LAS 50 94.0%
WN2653 LAS → MDW 50 56.0%
WN2795 MDW → LAS 50 47.9%
WN2797 MDW → LAS 50 28.0%
WN2993 LAS → MDW 50 74.0%
WN365 LAS → MDW 50 74.0%
WN4346 MDW → LAS 50 74.0%
WN1637 MDW → LAS 49 77.6%
WN1729 LAS → MDW 49 85.7%
WN1923 LAS → MDW 49 79.6%
WN2270 LAS → MDW 49 98.0%
WN3471 LAS → MDW 49 59.2%
WN3624 MDW → LAS 49 75.5%
WN591 LAS → MDW 48 83.3%
WN123 MDW → LAS 47 76.6%
WN3603 LAS → MDW 47 42.6%
WN1094 LAS → MDW 46 84.4%
WN1162 MDW → LAS 46 63.0%
WN2818 LAS → MDW 46 73.9%
WN3635 MDW → LAS 46 91.1%
WN745 MDW → LAS 45 75.6%
WN2699 MDW → LAS 44 93.2%
WN2461 LAS → MDW 43 95.4%
WN2668 LAS → MDW 43 74.4%
WN3148 MDW → LAS 43 50.0%
WN3834 MDW → LAS 43 47.6%
WN113 MDW → LAS 42 78.1%
WN2793 MDW → LAS 42 81.0%
WN2921 LAS → MDW 42 95.2%
WN3136 MDW → LAS 42 100.0%
WN3219 LAS → MDW 42 48.8%
WN3330 LAS → MDW 42 78.1%
WN347 MDW → LAS 42 83.3%
WN3713 MDW → LAS 42 95.1%
WN694 LAS → MDW 42 97.6%
WN1731 LAS → MDW 41 65.9%
WN2821 LAS → MDW 36 58.3%
WN2271 LAS → MDW 34 76.5%
WN2444 MDW → LAS 34 52.9%
WN3655 MDW → LAS 34 94.1%
WN4286 LAS → MDW 34 97.1%
WN1125 LAS → MDW 33 54.6%
WN1344 MDW → LAS 33 81.8%
WN2274 LAS → MDW 33 33.3%
WN3572 MDW → LAS 33 25.0%
WN407 LAS → MDW 33 93.9%
WN512 MDW → LAS 33 22.6%
WN588 LAS → MDW 33 87.5%
WN875 MDW → LAS 33 90.9%
WN2190 MDW → LAS 32 78.1%
WN2444 LAS → MDW 32 46.9%
WN3591 LAS → MDW 32 59.4%
WN3981 MDW → LAS 32 81.3%
WN4583 LAS → MDW 32 90.6%
WN569 MDW → LAS 32 84.4%
WN3320 MDW → LAS 31 74.2%
WN3375 MDW → LAS 31 87.1%
WN341 MDW → LAS 31 90.3%
WN2084 LAS → MDW 30 66.7%
WN4709 LAS → MDW 30 80.0%

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 403 −20.4% 1 62.8%
June 2026 386 −23.3% 2 54.1%
May 2026 401 −13.9% 1 63.8%
April 2026 381 −24.7% 5 70.6%
March 2026 382 −20.6% 8 57.1%
February 2026 279 −24.0% 0 69.9%
January 2026 322 −15.3% 0 77.3%
December 2025 371 −18.3% 0 70.9%
November 2025 342 −21.4% 15 74.6%
October 2025 418 +24.4% 0 74.9%
September 2025 424 1 75.9%
August 2025 429 2 76.0%
July 2025 506 7 62.5%
June 2025 503 5 71.0%
May 2025 466 0 77.7%
April 2025 506 1 76.7%
March 2025 481 6 76.5%
February 2025 367 2 77.4%
January 2025 380 0 82.1%
December 2024 454 1 78.0%
November 2024 435 1 84.8%
October 2024 336 0 84.8%

How to read this chart

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