PlainFlights

Route · LAS → MDW · 2020–2025 BTS data

Las Vegas to Chicago

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), LAS to MDW (Las Vegas to Chicago) ranks #486 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

77.4%
On-time
-1.6 pts
vs US avg
55 min
Delay when late
16,976
Flights
#486 of 4927
Corpus placement

Cancelled

0.9%

Best Month

Nov 2024 91%

Worst Month

Jul 2024 61%

Distance

1,521 mi

Carriers

5

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 186 40 0 1 WN
Nov 2025 179 33 6 2 WN
Oct 2025 209 46 0 0 WN
Sep 2025 212 36 1 0 WN,G4
Aug 2025 216 33 2 2 WN
Jul 2025 255 68 4 4 WN,F9
Jun 2025 251 50 2 2 WN,F9
May 2025 238 40 0 0 WN,F9
Apr 2025 258 38 0 1 F9,WN
Mar 2025 252 54 3 2 WN,F9
Feb 2025 180 34 1 1 WN,F9
Jan 2025 191 29 0 0 WN,F9
Dec 2024 227 39 1 0 F9,WN
Nov 2024 218 19 0 2 WN,F9
Oct 2024 265 34 1 0 WN,F9
Sep 2024 247 40 0 1 WN,F9
Aug 2024 260 52 1 0 F9,WN
Jul 2024 285 111 3 3 F9,WN
Jun 2024 276 88 0 3 F9,WN
May 2024 309 79 1 4 F9,WN
Apr 2024 294 54 3 0 F9,WN
Mar 2024 279 80 2 3 F9,WN
Feb 2024 213 33 2 0 F9,WN
Jan 2024 239 58 17 1 F9,WN

LAS–MDW seasonal on-time pattern

Best: February (84.6%) · weakest: July (68.2%)

65%70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 80%

Strongest calendar month

February

84.6% on-time · ~184 flights/mo

Busiest calendar month

July

~270 flights/mo avg

Weakest calendar month

July

68.2% on-time · ~270 flights/mo

Cancellation Rate

0.9%

50 of 5,739 flights

Diversion Rate

0.6%

32 of 5,739 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

LAS - Las Vegas

Full on-time, delay-cause, and seasonal performance for Las Vegas, NV.

LAS on-time profile

MDW - Chicago

Full on-time, delay-cause, and seasonal performance for Chicago, IL.

MDW on-time profile

Compare the two airports

See LAS and MDW side by side on delays, cancellations, and reliability.

Compare LAS vs MDW

Origin-hub reliability standing

Mid-pack among LAS departures

From LAS, this corridor sits with 71 other 75–85% on-time routes out of 83 tracked departures, not the hub's reliability leaders (2 at ≥85%) and not the softest ( 10 below 75%). Destination: Chicago · fleet on-time rank #4004 of 4927.

What the Data Says About LAS to MDW

The Las Vegas to Chicago corridor (LAS to MDW) posts a 77.4% on-time rate on the lower edge of the average band, based on 16,976 tracked flights. Late flights run 55.3 minutes behind on average. 5 carriers cover the 1,521-mile route; over the last 24 months, 50 of 5,739 flights were cancelled (0.9%) and 0.6% diverted.

The monthly split is wide on this route: Nov 2024 posted the strongest performance at 91% on-time, while Jul 2024 came in at just 61% - a 30-point swing worth factoring into travel timing.

On the multi-year calendar, LAS–MDW peaks in February at 84.6% on-time while July carries the heaviest traffic (~270 flights per month) ; the softest month is July at 68.2%, a 16.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does LAS to MDW rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, LAS to MDW ranks #486 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from LAS to MDW? ▼
Flights from Las Vegas to Chicago have a 77.4% on-time rate based on 16,976 flights. The average delay is 55.3 minutes. The best recent month was Nov 2024 with 91% on-time.
What is the cancellation rate for LAS to MDW? ▼
Over the last 24 months, 0.9% of flights on this route were cancelled (50 of 5,739 flights) and 0.6% were diverted.
How far is the flight from LAS to MDW? ▼
The flight distance from Las Vegas (LAS) to Chicago (MDW) is approximately 1,521 miles. This route is served by 5 carriers.
When is the best time to fly from LAS to MDW? ▼
The best recent month for on-time performance was Nov 2024 (91% on-time). The worst was Jul 2024 (61% on-time). Consider booking during months with historically better performance.

Airports on this route

LAS Airport

Las Vegas
MDW Airport

Chicago
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using LAS–MDW data

LAS–MDW is mid-pack at 77.4% on-time; month and carrier mix move more than the corridor headline.

  • Compare LAS and MDW airport profiles: delay causes and top routes differ even on the same corridor. LAS airport
  • If your dates flex, February (84.6% on-time) beats July (68.2%) on this corridor. Seasonal chart
  • 4 other routes post a similar 77.4% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.