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192 km · Domestic

Purdue University (LAF) – Chicago O'Hare (ORD)

In July 2026, 92 flights operated between Purdue University and Chicago O'Hare (both directions), and 84.8% 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 periods12 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January–95–
February–88–
March–91–
April–86–
May–98–
June–82–
July–92–
August83––
September94––
October98–in progress
November87––
December99––

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods12 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January–74.7%–
February–79.5%–
March–76.9%–
April–59.3%–
May–73.5%–
June–81.7%–
July–84.8%–
August78.3%––
September81.9%––
October75.5%–in progress
November79.3%––
December71.7%––

Cancelled flights by month

The most recent periods12 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January–3–
February–0–
March–7–
April–8–
May–0–
June–4–
July–6–
August2––
September0––
October0–in progress
November5––
December5––

By direction

LAF → ORD

Scheduled flights
566
Flights operated
549
Cancelled
17 · 3.0%
On-time departures
79.8%

ORD → LAF

Scheduled flights
567
Flights operated
544
Cancelled
23 · 4.1%
On-time departures
73.0%

LAF → ORD and ORD → LAF counted separately.

Airlines on this route

Aug 1, 2025 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
SkyWest Airlines OO 1,133 100.0% 76.4% 40

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 · Aug 5, 2025 → Jul 31, 2026

Lowest average delay12:00–13:0018.4min · 232 recorded · 223 measured
Gap to highest-delay hour17.4min12:00 ↔ 21:00
Recorded flights1,133LAF–ORD

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 · 84.6% · 344 recorded · 338 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 13 recorded · 12 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 12:00 · 78.9% · 232 recorded · 223 measured · Source: the US BTS 13:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 207 recorded · 197 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 24 recorded · 24 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · 71.7% · 289 recorded · 279 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 21 recorded · 17 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 · 23.4 min · 344 recorded · 338 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 13 recorded · 12 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 12:00 · 18.4 min · 232 recorded · 223 measured · Source: the US BTS 13:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 207 recorded · 197 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 24 recorded · 24 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · 35.8 min · 289 recorded · 279 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 21 recorded · 17 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 · 344 · 344 recorded · 338 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 09:00 · 2 · 2 recorded · 2 measured · Source: the US BTS 10:00 · 13 · 13 recorded · 12 measured · Source: the US BTS 11:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 12:00 · 232 · 232 recorded · 223 measured · Source: the US BTS 13:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 14:00 · 207 · 207 recorded · 197 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · 24 · 24 recorded · 24 measured · Source: the US BTS 17:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 18:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 19:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · 289 · 289 recorded · 279 measured · Source: the US BTS 22:00 · 21 · 21 recorded · 17 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.

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———
06:0084.6%23.4 min338344
07:00No observations———
08:00No observations———
09:00Fewer than 200 measured departures—22
10:00Fewer than 200 measured departures—1213
11:00Fewer than 200 measured departures—11
12:0078.9%18.4 min223232
13:00No observations———
14:00Fewer than 200 measured departures—197207
15:00No observations———
16:00Fewer than 200 measured departures—2424
17:00No observations———
18:00No observations———
19:00No observations———
20:00No observations———
21:0071.7%35.8 min279289
22:00Fewer than 200 measured departures—1721
23:00No observations———

Day of week

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 202 · 202 recorded · 193 measured · Source: the US BTS Tuesday · 109 · 109 recorded · 105 measured · Source: the US BTS Wednesday · 106 · 106 recorded · 105 measured · Source: the US BTS Thursday · 200 · 200 recorded · 195 measured · Source: the US BTS Friday · 206 · 206 recorded · 197 measured · Source: the US BTS Saturday · 108 · 108 recorded · 105 measured · Source: the US BTS Sunday · 202 · 202 recorded · 193 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
MondayFewer than 200 measured departures—193202
TuesdayFewer than 200 measured departures—105109
WednesdayFewer than 200 measured departures—105106
ThursdayFewer than 200 measured departures—195200
FridayFewer than 200 measured departures—197206
SaturdayFewer than 200 measured departures—105108
SundayFewer than 200 measured departures—193202

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 98 · 98 recorded · 95 measured · Source: the US BTS Feb · 88 · 88 recorded · 88 measured · Source: the US BTS Mar · 98 · 98 recorded · 91 measured · Source: the US BTS Apr · 94 · 94 recorded · 86 measured · Source: the US BTS May · 98 · 98 recorded · 98 measured · Source: the US BTS Jun · 86 · 86 recorded · 82 measured · Source: the US BTS Jul · 98 · 98 recorded · 92 measured · Source: the US BTS Aug · 85 · 85 recorded · 83 measured · Source: the US BTS Sep · 94 · 94 recorded · 94 measured · Source: the US BTS Oct · 98 · 98 recorded · 98 measured · Source: the US BTS Nov · 92 · 92 recorded · 87 measured · Source: the US BTS Dec · 104 · 104 recorded · 99 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—9598
FebFewer than 200 measured departures—8888
MarFewer than 200 measured departures—9198
AprFewer than 200 measured departures—8694
MayFewer than 200 measured departures—9898
JunFewer than 200 measured departures—8286
JulFewer than 200 measured departures—9298
AugFewer than 200 measured departures—8385
SepFewer than 200 measured departures—9494
OctFewer than 200 measured departures—9898
NovFewer than 200 measured departures—8792
DecFewer than 200 measured departures—99104

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% 835
  • Delayed >15 min 22.8% 258
  • Cancelled 3.5% 40
  • 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

6
Flight numbersBy direction DeparturesOn time
OO5043 LAF → ORD 345 84.6%
OO5048 ORD → LAF 320 70.5%
OO5070 LAF → ORD 169 71.4%
OO5070 ORD → LAF 86 81.9%
OO5027 ORD → LAF 48 72.7%
OO5016 ORD → LAF 32 77.4%

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 92 6 84.8%
June 2026 82 4 81.7%
May 2026 98 0 73.5%
April 2026 86 8 59.3%
March 2026 91 7 76.9%
February 2026 88 0 79.5%
January 2026 95 3 74.7%
December 2025 99 5 71.7%
November 2025 87 5 79.3%
October 2025 98 0 75.5%
September 2025 94 0 81.9%
August 2025 83 2 78.3%

How to read this chart

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