Route profile
CHS→LGA
Flight reliability, delays and best times to fly from Charleston to New York, 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 11% of comparable major US routes (4,598 compared)
Calculated from 4,449 flights. How this is calculated · What counts as on time
CHS → LGA arrives on time 80.3% of the time; the return trip, LGA → CHS, arrives on time 78.0% of the time, a 2.2-point gap between the two directions of the same city pair.
CHS → LGA spends 25.7 minutes on the ground on a 641-mile trip: 17.3 minutes from pushback to wheels-up at CHS and 8.4 minutes from touchdown to gate at LGA.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
Every day of the week performs about the same on this route, steadier than 92% of 4,467 comparable routes.
82.5% on time on the best day (Tuesday) against 77.8% on the worst (Sunday).
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 4,467 in the comparison.
What sets this route apart
Where CHS to LGA differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
CHS to LGA is at its best against routes of similar length for flights scheduled at 7 PM: 75.5% arrive on time, 7.7 points ahead of the 67.8% those routes manage at that hour. Against all other routes the gap is 7.7 points.
CHS to LGA holds up on Fridays better than routes of similar length do: 80.0% on time to their 76.0%, a 4 points lead. Against all other routes the gap is 3.8 points.
May is kinder to CHS to LGA than to routes of similar length: 80.2% on time against 74.2%, 6 points better. Against all other routes the gap is 5 points.
Delta Air Lines’ flights on CHS to LGA arrive on time 76.6% of the time, 4.6 points below the 81.2% it manages on its routes of similar length. Against all other routes the gap is 4.9 points.
CHS to LGA against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 7 PM departures | 75.5% | routes of similar length | 67.8% | +7.7 pts | 196 here, 125,011 there |
| Weekday: Friday | 80.0% | routes of similar length | 76.0% | +4.0 pts | 620 here, 324,812 there |
| Month: May | 80.2% | routes of similar length | 74.2% | +6.0 pts | 353 here, 184,540 there |
| Airline: Delta Air Lines | 76.6% | routes of similar length | 81.2% | −4.6 pts | 1,072 here, 433,654 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 CHS → LGA flights are cancelled
July 2023 – July 2026
CHS → LGA cancelled 184 of 4,449 scheduled flights — about 1 in every 24. The reason filed most often was the airline, 35.9% of the cancellations coded on this route — about 1 in every 67 scheduled flights.
Share of cancellations
Of 184 cancelled departures carrying a reason code.
What each reason means
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
66 cancellations, 35.9% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
62 cancellations, 33.7% of the total.
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
56 cancellations, 30.4% 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.
184 coded cancellations were recorded on CHS → LGA; the section appears from 50.
When it goes wrong
July 2023 – July 2026
58 min late
against a median of 9 min early
CHS → LGA has an average that understates its risk: a typical arrival is 9 min early, but the worst tenth are 67 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 4,449 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at LGA after arriving from CHS.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 30% | Likely to miss |
| 45 min | 19% | High risk |
| 60 min | 15% | Some risk |
| 90 min | 9.6% | Some risk |
| 120 min | 6.2% | 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 4.14% of the time and diverts 0.40% of the time, which a late arrival never shows up in.
Chance of missing is the share of 4,247 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 58 minutes late (90th-percentile gate arrival delay), over 4,449 operations.
Any other layover length: connection checker.
Best time to fly
CHS → LGA flights departing 5–9 AM arrived on time 90.1% of the time, against 68.6% for 3–6 PM departures, a gap of 21.5 percentage points.
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 92.5% on time from 663 flights
- 7 AM: 86.7% on time from 200 flights
- 8 AM: 84.3% on time from 155 flights
- 9 AM: too few flights to score
- 10 AM: 86.0% on time from 534 flights
- 11 AM: 80.7% on time from 310 flights
- 12 PM: 77.9% on time from 173 flights
- 1 PM: 83.3% on time from 140 flights
- 2 PM: 77.1% on time from 726 flights
- 3 PM to 4 PM: too few flights to score
- 5 PM: 71.7% on time from 271 flights
- 6 PM: 72.8% on time from 810 flights
- 7 PM: 75.5% on time from 203 flights
- 8 PM to 11 PM: too few flights to score
Why CHS → LGA 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 CHS → LGA. 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 | 1,834 | 81.2% | 5.02% | -9 min | 8.8% |
| Delta Air Lines | 1,109 | 76.6% | 2.71% | -9 min | 12.8% |
| Endeavor Air | 1,061 | 84.3% | 4.43% | -10 min | 6.9% |
| Spirit Airlines | 259 | 71.8% | 4.25% | -3 min | 18.1% |
Republic Airways flew 43.0% of the 4,263 flights listed. Republic Airways cancelled 5.02% of its flights here against 2.71% for Delta Air Lines.
Endeavor Air arrived on time 12.5 percentage points more often than Spirit Airlines on this route.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 4.7 percentage points.
By month
- Jan: 84.8%
- Feb: 86.8%
- Mar: 83.2%
- Apr: 79.8%
- May: 80.2%
- Jun: 76.4%
- Jul: 66.0%
- Aug: 81.3%
- Sep: 83.8%
- Oct: 89.0%
- Nov: 82.3%
- Dec: 77.3%
July is historically the weakest month and October the strongest, a spread of 23.0 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 69.9% from 139 flights
- August 2023: 91.1% from 143 flights
- September 2023: 78.8% from 140 flights
- October 2023: 94.7% from 151 flights
- November 2023: 88.6% from 140 flights
- December 2023: 87.5% 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: 82.2% from 137 flights
- May 2024: 82.8% from 149 flights
- June 2024: 77.5% from 149 flights
- July 2024: 68.9% from 155 flights
- August 2024: 71.7% from 154 flights
- September 2024: 89.0% from 146 flights
- October 2024: 91.9% from 148 flights
- November 2024: 92.9% from 141 flights
- December 2024: too few flights to score (111)
- January 2025: too few flights to score (14)
- 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: 82.9% from 125 flights
- October 2025: 78.0% from 124 flights
- November 2025: 65.2% from 142 flights
- December 2025: 63.0% from 139 flights
- January 2026: too few flights to score (110)
- February 2026: too few flights to score (88)
- March 2026: 75.7% from 131 flights
- April 2026: 76.8% from 126 flights
- May 2026: too few flights to score (116)
- June 2026: 80.5% from 127 flights
- July 2026: 69.5% from 136 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 75.8% against 79.1% in the 12 months before — declining by 3.3 percentage points.
Data and methodology
Calculated by FlyerIntel from 4,449 CHS → LGA 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