Route profile
EWR→CHS
Flight reliability, delays and best times to fly from Newark to Charleston, 628 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 33% of comparable major US routes (4,598 compared)
Calculated from 4,370 flights. How this is calculated · What counts as on time
EWR → CHS arrives on time 80.9% of the time; the return trip, CHS → EWR, arrives on time 82.2% of the time.
EWR → CHS spends 29.8 minutes on the ground on a 628-mile trip: 22.4 minutes from pushback to wheels-up at EWR and 7.3 minutes from touchdown to gate at CHS.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
What stands out
On-time performance swings unusually widely by time of day here, wider than 95% of 4,023 comparable routes.
92.0% on time for 5–9 AM departures, against 58.7% for 6–9 PM.
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 4,023 in the comparison.
What sets this route apart
Where EWR to CHS differs most from similar routes by hour, weekday, month and airline, July 2023 – July 2026.
EWR to CHS is at its best against routes of similar length for flights scheduled at 4 PM: 78.8% arrive on time, 8.6 points ahead of the 70.2% those routes manage at that hour. Against all other routes the gap is 8.1 points.
EWR to CHS holds up on Sundays better than routes of similar length do: 79.2% on time to their 74.8%, a 4.4 points lead. Against all other routes the gap is 4.4 points.
March is kinder to EWR to CHS than to routes of similar length: 84.4% on time against 78.3%, 6.1 points better. Against all other routes the gap is 6.5 points.
Spirit Airlines does better on EWR to CHS than on its routes of similar length: 79.2% on time here, 73.5% there, 5.7 points apart. Against all other routes the gap is 3.9 points.
EWR to CHS against comparable routes
July 2023 – July 2026| Measure | This route | Compared with | Them | Gap | Flights behind it |
|---|---|---|---|---|---|
| Hour: 4 PM departures | 78.8% | routes of similar length | 70.2% | +8.6 pts | 345 here, 120,602 there |
| Weekday: Sunday | 79.2% | routes of similar length | 74.8% | +4.4 pts | 610 here, 308,510 there |
| Month: March | 84.4% | routes of similar length | 78.3% | +6.1 pts | 365 here, 169,405 there |
| Airline: Spirit Airlines | 79.2% | routes of similar length | 73.5% | +5.7 pts | 966 here, 73,037 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 628 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 EWR → CHS flights are cancelled
July 2023 – July 2026
EWR → CHS cancelled 131 of 4,370 scheduled flights — about 1 in every 33. The reason filed most often was extreme weather, 64.9% of the cancellations coded on this route — about 1 in every 51 scheduled flights.
Share of cancellations
Of 131 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
85 cancellations, 64.9% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
37 cancellations, 28.2% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
9 cancellations, 6.9% 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.
131 coded cancellations were recorded on EWR → CHS; the section appears from 50.
When it goes wrong
July 2023 – July 2026
44 min late
against a median of 10 min early
Percentiles over 4,370 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at CHS after arriving from EWR.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 31% | Likely to miss |
| 45 min | 19% | High risk |
| 60 min | 13% | Some risk |
| 90 min | 7.7% | Some risk |
| 120 min | 4.8% | Low 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 3.00% of the time and diverts 0.18% of the time, which a late arrival never shows up in.
Chance of missing is the share of 4,231 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 44 minutes late (90th-percentile gate arrival delay), over 4,370 operations.
Any other layover length: connection checker.
Best time to fly
EWR → CHS flights departing 5–9 AM arrived on time 92.0% of the time, against 58.7% for 6–9 PM departures, a gap of 33.3 percentage points.
By departure window
By departure hour
- 12 AM to 5 AM: too few flights to score
- 6 AM: 93.4% on time from 766 flights
- 7 AM: 92.4% on time from 372 flights
- 8 AM: too few flights to score
- 9 AM: 82.6% on time from 475 flights
- 10 AM: 88.5% on time from 246 flights
- 11 AM: 81.0% on time from 272 flights
- 12 PM: 85.8% on time from 178 flights
- 1 PM: too few flights to score
- 2 PM: 78.2% on time from 127 flights
- 3 PM: 70.3% on time from 152 flights
- 4 PM: 78.8% on time from 362 flights
- 5 PM to 8 PM: too few flights to score
- 9 PM: 68.7% on time from 1,046 flights
- 10 PM to 11 PM: too few flights to score
Why EWR → CHS runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
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 EWR → CHS. Only delays of 15 minutes or more are attributed. What the five causes mean
Late-arriving aircraft is the largest cause on EWR → CHS, at 38.4%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 92.0% of the time and 6–9 PM departures 58.7%.
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 |
|---|---|---|---|---|---|
| United Airlines | 2,657 | 80.6% | 1.54% | -9 min | 7.6% |
| Spirit Airlines | 1,002 | 79.2% | 3.59% | -9 min | 9.1% |
| Republic Airways | 711 | 84.4% | 7.59% | -13 min | 6.0% |
United Airlines flew 60.8% of the 4,370 flights listed. Republic Airways cancelled 7.59% of its flights here against 1.54% for United Airlines.
Republic Airways arrived on time 5.2 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 Friday the least, a gap of 8.2 percentage points.
By month
- Jan: 81.9%
- Feb: 86.5%
- Mar: 84.4%
- Apr: 84.1%
- May: 77.8%
- Jun: 78.0%
- Jul: 70.8%
- Aug: 80.0%
- Sep: 86.6%
- Oct: 81.6%
- Nov: 80.9%
- Dec: 80.2%
July is historically the weakest month and September the strongest, a spread of 15.8 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 59.9% from 153 flights
- August 2023: 79.1% from 135 flights
- September 2023: too few flights to score (116)
- October 2023: 87.7% from 123 flights
- November 2023: 88.4% from 121 flights
- December 2023: 86.4% from 132 flights
- January 2024: 85.0% from 120 flights
- February 2024: too few flights to score (114)
- March 2024: 89.3% from 124 flights
- April 2024: too few flights to score (117)
- May 2024: 87.8% from 124 flights
- June 2024: 85.1% from 120 flights
- July 2024: 80.0% from 120 flights
- August 2024: too few flights to score (113)
- September 2024: too few flights to score (119)
- October 2024: too few flights to score (114)
- November 2024: too few flights to score (116)
- December 2024: 83.9% from 124 flights
- January 2025: too few flights to score (115)
- February 2025: too few flights to score (104)
- March 2025: 85.2% from 123 flights
- April 2025: 84.4% from 138 flights
- May 2025: 59.0% from 127 flights
- June 2025: too few flights to score (104)
- July 2025: too few flights to score (112)
- August 2025: too few flights to score (114)
- September 2025: too few flights to score (103)
- October 2025: 75.0% from 129 flights
- November 2025: 79.9% from 140 flights
- December 2025: 69.5% from 123 flights
- January 2026: too few flights to score (114)
- February 2026: too few flights to score (107)
- March 2026: 78.5% from 124 flights
- April 2026: too few flights to score (113)
- May 2026: too few flights to score (93)
- June 2026: too few flights to score (90)
- July 2026: too few flights to score (92)
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 79.7% against 79.3% in the 12 months before — broadly unchanged.
Data and methodology
Calculated by FlyerIntel from 4,370 EWR → 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