Route reliability record
ORD→LAN
Chicago to Lansing
- Flights
- 718
- Period
- September 2025 to August 2026
- Distance
- 179 mi
- Carriers
- 1
This route sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 5 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 718 ORD to LAN flights, with a median arrival 4 minutes early.
Best time to fly ORD to LAN: a 2pm–5pm departure, ideally on a Tuesday. Flights in that window arrived on time 78.0% of the time and Tuesday flights 82.4%, against 72.8% for the route overall.
The national on-time rate over the same period is 77.3%, so this route runs 5 points behind the country as a whole. Across a thousand flights that is about 45 extra late arrivals.
Key figures
On time
72.8%
Arrivals under 15 minutes late, of 698 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
2.79%
National rate is 1.89%
Best carrier
Envoy
72.8% on time across 718 flights
These figures cover 718 flights between September 2025 and August 2026. Beyond the headline rate, 10.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
Which airline is most reliable on ORD to LAN
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Air | 718 | 72.8% | 68 min | 2.79% | C |
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Best ways to make this trip
The most reliable ways to fly Chicago to Lansing
Every airline on this route and on the routes between nearby airports, ranked by how often a scheduled flight actually operated and arrived on time. 4 of the top 5 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. MDW → GRRChicago to Grand Rapids | Southwest Airlines | 74.0% | 74.6% | 0.86% | 8am–11am, Wed | — |
| 2. ORD → GRRChicago to Grand Rapids | Envoy Air | 72.2% | 75.2% | 3.93% | 5am–8am, Sat | — |
| 3. ORD → LANChicago to Lansing | Envoy Air | 70.8% | 72.8% | 2.79% | 2pm–5pm, Tue | — |
| 4. ORD → GRRChicago to Grand Rapids | Republic Airways | 69.2% | 71.7% | 3.46% | 11am–2pm, Thu | — |
| 5. ORD → GRRChicago to Grand Rapids | SkyWest Airlines | 68.9% | 71.8% | 4.09% | 5am–8am, Wed | — |
Success is the share of scheduled flights that operated and arrived less than 15 minutes late, so a cancelled flight counts against it. “(route)” means the best time comes from every carrier on the route rather than this airline alone.
Departure window
The best time of day to leave
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 718 flights.
- 5am–8am—
- 8am–11am143 flights74.3%
- 11am–2pm163 flights77.8%
- 2pm–5pm51 flights78.0%
- 5pm–8pm7 flights—
- 8pm–5am354 flights68.8%
Scale runs 60% to 85%. Rows with fewer than 30 flights show a dash.
The best window here is not the first bank but the 2pm–5pm slot at 78.0% on time, ahead of 8pm–5am at 68.8%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 8pm–5am window is the busiest, with 354 flights scheduled in it.
Explore
Filter ORD to LAN by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On ORD to LAN, the best departure window is 2pm–5pm at 78.0% on time and the worst is 8pm–5am at 68.8%, a real gap of 9.2 points. All US flights leaving 2pm–5pm ran 71.9%.
- 5–8am—
- 8–11am74.3%
- 11am–2pm77.8%
- 2–5pm78.0%
- 5–8pm—
- 8pm–5am68.8%
best all US flightsScale 60% to 95%. Cells under 30 flights show a dash.
Across the year
When delays peak on this route
This route's year swings by 32 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.
January is the weak month at 53.3% on time, against 85.5% in October. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. May was the busiest month here, with 62 flights.
Across the week, Tuesday is the strongest day at 82.4% on time and Friday the weakest at 68.6%, a spread of 14 points.
Delay causes
Why this route gets delayed
Late-arriving aircraft accounts for 55% of the 13,000 delay minutes carriers reported here, and the remaining four split what is left.
- 55%Late-arriving aircraft
- 19%National Airspace System
- 16%Extreme weather
- 10%Carrier
Extreme weather accounts for 16% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.7 times the usual weather exposure. The split is drawn from 12,824 reported delay minutes.
55% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 13,000 reported delay minutes here, that single category outweighs weather by 3 to one.
Cancellations run at 2.79%, against 1.89% nationally. That is roughly one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here actually costs
10.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
At 179 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 2pm–5pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 80.8% on time across 718 flights, 8 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 8 points of difference.
One caution: this is a thin sample. 718 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
Work out the risk of missing a connection in LAN after this flight
What to do with this
Booking this route
Put together: treat all of this as provisional. 718 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 72.8% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 698 completed flights over 12 months sit behind that.
Common questions
ORD to LAN questions
How often is ORD to LAN delayed?
Roughly one flight in four arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 27.2% of the 718 flights in this analysis, against 22.7% nationally. Delayed flights are late by about an hour on average.
How reliable is ORD to LAN compared with the rest of the country?
72.8% of flights arrive on time here against a national 77.3%, a difference of 5 points against it. That is worth a C on this site's grading scale.
What time of day has the fewest delays on ORD to LAN?
The 2pm–5pm departure window is the strongest at 78.0% on time. The 8pm–5am window is the weakest at 68.8%, 9 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.
How bad are January delays on ORD to LAN?
January is the weakest month at 53.3% on time, compared with 85.5% in October. Across the year that is 32 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.
Related
Where to go next
- LAN to ORD — the return legseparate record
- Chicago O'Hare International (ORD) delay statistics
- ORD to LGA, a related route66.6%
- DTW to LAN, a related route73.6%
- ORD to BOS, a related route66.6%
- Envoy Air on-time record72.8%
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Direction matters. ORD to LAN and LAN to ORD are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.
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Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.