ON TIMEBOARD

ORD → LSE on time

Chicago O'Hare (Chicago, IL) to La Crosse (La Crosse, WI). Every scheduled flight, September 2025 to August 2026.

On time
71%
arrived < 15 min late
Cancelled
4.7%
1,061 flights
Typical arrival
−5 min
median vs schedule
When late
+60 min
average delay
Flights / day
3
1 airline

71% of flights from Chicago to La Crosse arrived on time over the past 12 months. That is worse than the typical U.S. route. The 8 a.m. departures ran on time 82% of the time; the 10 p.m. ones 66%. 13% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for ORD → LSE: when a flight was late, it was under 45 minutes late 56% of the time. About 1 in 13 flights landed an hour or more late, and 1 in 88 three hours or more; 4.7% were cancelled outright.

Share of all 1,061 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
American Airlines1,06171%4.7%−5 min7.5%+60 minEnvoy

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at ORD). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%8 a.m. departures: 82% on time (146 flights)828a9 a.m. departures: 78% on time (114 flights)789a10 a.m. departures: too few flights (87 flights)10a11 a.m. departures: too few flights11anoon departures: too few flights (5 flights)12p1 p.m. departures: too few flights (4 flights)1p2 p.m. departures: too few flights (48 flights)2p3 p.m. departures: too few flights (75 flights)3p4 p.m. departures: 73% on time (211 flights)734p5 p.m. departures: too few flights5p6 p.m. departures: too few flights (17 flights)6p7 p.m. departures: too few flights (1 flights)7p8 p.m. departures: too few flights (30 flights)8p9 p.m. departures: too few flights (36 flights)9p10 p.m. departures: 66% on time (228 flights)6610p11 p.m. departures: too few flights (59 flights)11p
ORD → LSE, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

Last flight of the day

On ORD → LSE, each airline's last flight of the day was cancelled 7.2% of the time, against 3.5% for its earlier flights (2.1× as often). It arrived 3+ hours late 0.8% of the time (earlier flights: 1.3%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
American Airlines11:00 p.m.7.2%0.8%3.5%first flight 10:05 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

If you need to be in LSE tonight, book an earlier flight so there's a backup if it's cancelled.

By month

Each calendar month pooled over 2023–2026. Best: October (79%). Worst: July (62%).

40%70%100%Jan: 66% on time (220 flights)66JanFeb: 79% on time (194 flights)79FebMar: 70% on time (240 flights)70MarApr: 78% on time (266 flights)78AprMay: 79% on time (277 flights)79MayJun: 74% on time (270 flights)74JunJul: 62% on time (275 flights)62JulAug: 75% on time (266 flights)75AugSep: 79% on time (221 flights)79SepOct: 79% on time (227 flights)79OctNov: 78% on time (247 flights)78NovDec: 68% on time (225 flights)68Dec

By day of week

DayFlightsOn timeCancelled
Monday15970%7.5%
Tuesday15177%4.0%
Wednesday15069%3.3%
Thursday15168%2.6%
Friday15468%3.9%
Saturday14077%4.3%
Sunday15670%7.0%

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Late inbound plane 51%Airline (crew, maintenance, ops) 20%Air traffic & airport (NAS) 19%Severe weather 9%

Cancellations: weather 29 · air traffic/airport 21

Month by month

Not enough months with data to draw a trend.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
AA 371310:19 p.m.23766%8.0%−4 minEnvoy

Worst days in the past year

DateFlightsOn timeCancelled
Nov 30, 202540%2
Nov 29, 202530%3
Aug 10, 202630%1
Dec 7, 202530%1
Apr 14, 202630%1

Questions

How often are flights from ORD to LSE on time?

71% of 1,061 scheduled flights from Chicago, IL to La Crosse, WI arrived within 15 minutes of schedule between September 2025 and August 2026. 4.7% were cancelled.

What is the best time of day to fly ORD to LSE?

Flights scheduled to leave at 8 a.m. were the most reliable (82% on time). The 10 p.m. departures were the least (66%).

What month has the most delays from ORD to LSE?

July (62% on time). The best month is October (79%), over 2023–2026.

Is the last flight of the day from ORD to LSE more likely to be cancelled?

Yes. Each airline's last ORD–LSE flight of the day was cancelled 7.2% of the time over the past year, against 3.5% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.