Route profile
LGA→CHS
Flight reliability, delays and best times to fly from New York to Charleston, 641 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 14% of comparable major US routes (4,598 compared)
Calculated from 4,448 flights. How this is calculated · What counts as on time
LGA → CHS arrives on time 78.0% of the time; the return trip, CHS → LGA, arrives on time 80.3% of the time, a 2.2-point gap between the two directions of the same city pair.
LGA → CHS spends 35.2 minutes on the ground on a 641-mile trip: 26.3 minutes from pushback to wheels-up at LGA and 9.0 minutes from touchdown to gate at CHS.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What sets this route apart
Where LGA to CHS differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
LGA to CHS struggles most at 8 AM: 81.4% of its flights scheduled then arrive on time, 4.7 points behind the 86.1% on routes of similar length at the same hour. Against all other routes the gap is 4.5 points.
In December, LGA to CHS runs 8.6 points below routes of similar length, 70.2% on time to 78.8%. Against all other routes the gap is 8.6 points.
March is kinder to LGA to CHS than to routes of similar length: 84.1% on time against 78.1%, 6 points better. Against all other routes the gap is 6.2 points.
Delta Air Lines’ flights on LGA to CHS arrive on time 75.1% of the time, 6.1 points below the 81.2% it manages on its routes of similar length. Against all other routes the gap is 6.4 points.
LGA to CHS against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 8 AM departures | 81.4% | routes of similar length | 86.1% | −4.7 pts | 264 here, 147,907 there |
| Month: December | 70.2% | routes of similar length | 78.8% | −8.6 pts | 376 here, 173,083 there |
| Month: March | 84.1% | routes of similar length | 78.1% | +6.0 pts | 301 here, 176,104 there |
| Airline: Delta Air Lines | 75.1% | routes of similar length | 81.2% | −6.1 pts | 1,080 here, 433,646 there |
Each comparison pools the flights of other routes, with this route’s own left out. Similar length means within 15% of this route’s 641 miles, with at least 5 such routes. A bucket is set against the most comparable group that has enough flights: similar length, then the same origin (at least 3 routes), then all other routes. Hours, weekdays and months appear only where both sides have 120 completed flights, and airlines where both have 600. The gap must be at least 2 points and 2 standard errors, and only the largest gap each way is kept per measure. These are differences in the flights counted, not causes.
Why LGA → CHS flights are cancelled
July 2023 – July 2026
LGA → CHS cancelled 168 of 4,448 scheduled flights — about 1 in every 26. The reason filed most often was the air traffic system, 40.5% of the cancellations coded on this route — about 1 in every 65 scheduled flights.
Share of cancellations
Of 168 cancelled departures carrying a reason code.
What each reason means
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
68 cancellations, 40.5% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
55 cancellations, 32.7% of the total.
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
45 cancellations, 26.8% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
168 coded cancellations were recorded on LGA → CHS; the section appears from 50.
When it goes wrong
July 2023 – July 2026
53 min late
against a median of 9 min early
LGA → CHS has an average that understates its risk: a typical arrival is 9 min early, but the worst tenth are 62 minutes worse than that. If the trip has something unmissable at the end of it, the median is the wrong number to plan against.
Percentiles over 4,448 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at CHS after arriving from LGA.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 34% | Likely to miss |
| 45 min | 21% | High risk |
| 60 min | 15% | Some risk |
| 90 min | 9.2% | Some risk |
| 120 min | 5.8% | Some risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 3.78% of the time and diverts 0.22% of the time, which a late arrival never shows up in.
Chance of missing is the share of 4,270 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 53 minutes late (90th-percentile gate arrival delay), over 4,448 operations.
Any other layover length: connection checker.
Best time to fly
LGA → CHS flights departing 5–9 AM arrived on time 86.2% of the time, against 70.3% for 6–9 PM departures, a gap of 15.9 percentage points.
By departure window
By departure hour
- 12 AM to 6 AM: too few flights to score
- 7 AM: 89.0% on time from 553 flights
- 8 AM: 81.4% on time from 278 flights
- 9 AM: 82.5% on time from 196 flights
- 10 AM: 81.3% on time from 339 flights
- 11 AM: 79.3% on time from 530 flights
- 12 PM to 1 PM: too few flights to score
- 2 PM: 76.1% on time from 275 flights
- 3 PM: 74.7% on time from 986 flights
- 4 PM to 5 PM: too few flights to score
- 6 PM: 70.1% on time from 351 flights
- 7 PM: 70.0% on time from 488 flights
- 8 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why LGA → CHS runs late
July 2023 – July 2026
crew, maintenance, boarding and fueling, all within the carrier’s control
the inbound aircraft was late, so this flight started late
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for LGA → CHS. Only delays of 15 minutes or more are attributed. What the five causes mean
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| Republic Airways | 1,833 | 77.1% | 4.86% | -9 min | 9.8% |
| Delta Air Lines | 1,109 | 75.1% | 2.25% | -9 min | 10.6% |
| Endeavor Air | 1,061 | 81.8% | 4.34% | -12 min | 7.5% |
| Spirit Airlines | 259 | 77.6% | 1.54% | -9 min | 9.8% |
Republic Airways flew 43.0% of the 4,262 flights listed. Republic Airways cancelled 4.86% of its flights here against 1.54% for Spirit Airlines.
Endeavor Air arrived on time 6.7 percentage points more often than Delta Air Lines on this route.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Friday the least, a gap of 6.8 percentage points.
By month
- Jan: 74.3%
- Feb: 83.2%
- Mar: 84.1%
- Apr: 78.9%
- May: 76.4%
- Jun: 77.9%
- Jul: 67.9%
- Aug: 81.0%
- Sep: 81.5%
- Oct: 83.3%
- Nov: 81.4%
- Dec: 70.2%
July is historically the weakest month and March the strongest, a spread of 16.2 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 74.6% from 139 flights
- August 2023: 88.4% from 143 flights
- September 2023: 71.2% from 140 flights
- October 2023: 91.4% from 151 flights
- November 2023: 85.0% from 140 flights
- December 2023: 83.1% from 137 flights
- January 2024: too few flights to score (115)
- February 2024: too few flights to score (112)
- March 2024: too few flights to score (119)
- April 2024: 80.9% from 137 flights
- May 2024: 78.8% from 149 flights
- June 2024: 79.9% from 149 flights
- July 2024: 73.9% from 155 flights
- August 2024: 72.5% from 154 flights
- September 2024: 91.1% from 146 flights
- October 2024: 89.2% from 148 flights
- November 2024: 87.9% from 141 flights
- December 2024: too few flights to score (111)
- January 2025: too few flights to score (13)
- February 2025: no flights recorded
- March 2025: too few flights to score (66)
- April 2025: too few flights to score (108)
- May 2025: too few flights to score (98)
- June 2025: too few flights to score (101)
- July 2025: too few flights to score (105)
- August 2025: too few flights to score (107)
- September 2025: 81.3% from 125 flights
- October 2025: 65.5% from 124 flights
- November 2025: 71.0% from 142 flights
- December 2025: 52.7% from 139 flights
- January 2026: too few flights to score (111)
- February 2026: too few flights to score (88)
- March 2026: 76.9% from 131 flights
- April 2026: 75.4% from 126 flights
- May 2026: too few flights to score (116)
- June 2026: 85.8% from 127 flights
- July 2026: 63.6% from 135 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 73.6% against 77.7% in the 12 months before — declining by 4.1 percentage points.
Data and methodology
Calculated by FlyerIntel from 4,448 LGA → CHS flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed