Route reliability record
LGA→GRR
New York to Grand Rapids
- Flights
- 915
- Period
- September 2025 to August 2026
- Distance
- 618 mi
- Carriers
- 1
This route carries a cancellation problem, not just a delay problem: 6.1% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, close to three flights in four arrive on time, worth a B− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 915 LGA to GRR flights, with a median arrival 11 minutes early.
Best time to fly LGA to GRR: a 8am–11am departure, ideally on a Monday. Flights in that window arrived on time 84.9% of the time and Monday flights 84.7%, against 77.8% for the route overall.
The US average over the same twelve months is 77.3%, so there is little to separate this route from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.
Key figures
On time
77.8%
Arrivals under 15 minutes late, of 859 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
6.12%
National rate is 1.89%
Best carrier
Republic
77.8% on time across 915 flights
These figures cover 915 flights between September 2025 and August 2026. Beyond the headline rate, 10.0% 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 LGA to GRR
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 |
|---|---|---|---|---|---|
| Republic Airways | 915 | 77.8% | 68 min | 6.12% | B− |
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Best ways to make this trip
The most reliable ways to fly New York to Grand Rapids
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. 1 of the top 2 use a different airport at one end.
| Option | Airline | Success | On time | Cancelled | Best departure | Most punctual flight |
|---|---|---|---|---|---|---|
| 1. EWR → GRRNewark to Grand Rapids | Republic Airways | 78.6% | 83.0% | 5.29% | 2pm–5pm, Mon (route) | — |
| 2. LGA → GRRNew York to Grand Rapids | Republic Airways | 73.0% | 77.8% | 6.12% | 8am–11am, Mon | — |
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 matters more here than the choice of carrier. The gap between the best and worst window is 15 points, against half a point between the best and worst carrier.
- 5am–8am1 flights—
- 8am–11am324 flights84.9%
- 11am–2pm113 flights79.6%
- 2pm–5pm148 flights73.9%
- 5pm–8pm47 flights70.2%
- 8pm–5am282 flights71.4%
Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 84.9% of the time, against 70.2% for the evening window. That is 15 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 324 flights scheduled in it.
Explore
Filter LGA to GRR 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 LGA to GRR, the best departure window is 8am–11am at 84.9% on time and the worst is 5pm–8pm at 70.2%, a wide gap of 14.7 points. All US flights leaving 8am–11am ran 83.9%.
- 5–8am—
- 8–11am84.9%
- 11am–2pm79.6%
- 2–5pm73.9%
- 5–8pm70.2%
- 8pm–5am71.4%
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 22 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.
September is the best month on the calendar at 87.5% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. October was the busiest month here, with 116 flights.
Across the week, Monday is the strongest day at 84.7% on time and Thursday the weakest at 69.2%, a spread of 16 points.
Delay causes
Why this route gets delayed
Late-arriving aircraft accounts for 49% of the 13,000 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Late-arriving aircraft
- 26%Carrier
- 22%National Airspace System
- 3%Extreme weather
49% 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 17 to one. The split is drawn from 13,040 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 84.9% on time here.
Cancellations run at 6.12%, against 1.89% nationally. That is roughly one flight in fifteen 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
10.0% 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.
The 618 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg is a different operation and performs like one: it runs 81.0% on time across 915 flights, 3 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 3 points of difference.
One caution: this is a thin sample. 915 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 GRR after this flight
What to do with this
Booking this route
Put together: the delay figures matter less here than the 6.12% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 859 completed flights over 12 months sit behind that.
Common questions
LGA to GRR questions
How often is LGA to GRR delayed?
Roughly one flight in five arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 22.2% of the 915 flights in this analysis, against 22.7% nationally. Delayed flights are late by a little over an hour on average.
How reliable is LGA to GRR compared with the rest of the country?
77.8% of flights arrive on time here against a national 77.3%, a difference of half a point in its favour. That is worth a B− on this site's grading scale.
What time of day has the fewest delays on LGA to GRR?
The 8am–11am departure window is the strongest at 84.9% on time. The 5pm–8pm window is the weakest at 70.2%, 15 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 November delays on LGA to GRR?
November is the weakest month at 65.3% on time, compared with 87.5% in September. Across the year that is 22 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
- GRR to LGA — the return legseparate record
- LaGuardia (LGA) delay statistics
- LGA to ORD, a related route66.7%
- ORD to GRR, a related route69.5%
- LGA to ATL, a related route75.5%
- Republic Airways on-time record77.8%
- The US routes with the most cancellations
- Why the first flight of the morning is statistically safest
Direction matters. LGA to GRR and GRR to LGA 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.