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Route on-time record

GSP to EWR: most on-time flights and the best time to fly

Greenville/Greer/Spartanburg (Greenville-Spartanburg International Airport) to Newark (Newark Liberty International Airport). 743 nonstop flights in Jun 2025 to May 2026, 86% arrived within 15 minutes and 4.6% were cancelled. The most reliable flight number was Republic 3684 at 11:18 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

GSP → EWR

Greenville/Greer/Spartanburg to Newark: 743 nonstop flights a year

On time (12 months)

86%

Cancelled

4.6%

avg delay 15 min

Best time to leave

9 AM to noon

93% on time vs 56% 3 to 6 PM

Most reliable airline

Republic

82% chance on time

Check GSP to EWR fares

Lowest nonstop fare seen in the next two months: $505 (United 3444 on 2026-11-29). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · Republic 3684 · sold as American Eagle, Delta Connection or United Express

    11:18 AM → 1:20 PM2h 02m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    91%

    chance on time

    On time (history)
    96%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 96% of the time (78 flights, Jun 2025 to May 2026).
    • Never cancelled in 78 scheduled flights.
    • Leaves in this route's most on-time window (9 AM to noon: 93% on time; 3 to 6 PM: 56%).
    • Lands inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 78 flights

    Find 11:18 AM flight fares Opens this date on Aviasales

  2. #2 · Republic 3487 · sold as American Eagle, Delta Connection or United Express

    6:00 AM → 8:03 AM2h 03m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    91%

    chance on time

    On time (history)
    100%
    Cancelled
    0.0%
    Avg arrival delay
    1 min
    • Arrived on time 100% of the time (21 flights, Jun 2025 to May 2026).
    • Short track record (21 flights), so its score leans on the airline's record at this hour.

    Limited track record · 21 flights

    Find 6:00 AM flight fares Opens this date on Aviasales

  3. #3 · Republic 3472 · sold as American Eagle, Delta Connection or United Express

    12:07 PM → 2:10 PM2h 03m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    88%

    chance on time

    On time (history)
    93%
    Cancelled
    0.0%
    Avg arrival delay
    6 min
    • Arrived on time 93% of the time (72 flights, Jun 2025 to May 2026).
    • Never cancelled in 72 scheduled flights.
    • Lands inside EWR's trouble window: 65% of its 259 ground stops and delay programs started between 1 PM and 7 PM.

    Moderate track record · 72 flights

    Find 12:07 PM flight fares Opens this date on Aviasales

  4. #4 · Republic 3700 · sold as American Eagle, Delta Connection or United Express

    6:30 AM → 8:35 AM2h 05m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    87%

    chance on time

    On time (history)
    91%
    Cancelled
    0.0%
    Avg arrival delay
    3 min
    • Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
    • Short track record (11 flights), so its score leans on the airline's record at this hour.

    Limited track record · 11 flights

    Find 6:30 AM flight fares Opens this date on Aviasales

  5. #5 · Republic 3582 · sold as American Eagle, Delta Connection or United Express

    6:15 AM → 8:22 AM2h 07m nonstop

    Local times, typical schedule. Last flown 2026-03-28.

    85%

    chance on time

    On time (history)
    92%
    Cancelled
    9.9%
    Avg arrival delay
    8 min
    • Arrived on time 92% of the time (73 flights, Jun 2025 to May 2026).
    • Cancelled 9.9% of the time (8 of 81).

    Moderate track record · 73 flights

    Find 6:15 AM flight fares Opens this date on Aviasales

  6. #6 · Republic 3578 · sold as American Eagle, Delta Connection or United Express

    7:49 PM → 9:53 PM2h 04m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    83%

    chance on time

    On time (history)
    90%
    Cancelled
    0.0%
    Avg arrival delay
    2 min
    • Arrived on time 90% of the time (10 flights, Jun 2025 to May 2026).
    • Short track record (10 flights), so its score leans on the airline's record at this hour.

    Limited track record · 10 flights

    Find 7:49 PM flight fares Opens this date on Aviasales

  7. #7 · Republic 3569 · sold as American Eagle, Delta Connection or United Express

    6:27 PM → 8:30 PM2h 03m nonstop

    Local times, typical schedule. Last flown 2026-05-19.

    78%

    chance on time

    On time (history)
    90%
    Cancelled
    4.8%
    Avg arrival delay
    6 min
    • Arrived on time 90% of the time (20 flights, Jun 2025 to May 2026).
    • Short track record (20 flights), so its score leans on the airline's record at this hour.

    Limited track record · 20 flights

    Find 6:27 PM flight fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

  • Republic Airways (sold as American Eagle, Delta Connection or United Express)82%

    743 flights · 86% on time as flown · 4.6% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • Before 9 AM91%

    395 flights · avg delay 9 min

  • 9 AM to noon93%

    72 flights · avg delay 6 min

  • Noon to 3 PM91%

    129 flights · avg delay 5 min

  • 3 to 6 PM56%

    69 flights · avg delay 69 min

  • 6 to 9 PM71%

    78 flights · avg delay 25 min

Best day: Tuesday (90%). Worst: Friday (84%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
92
F
95
M
91
A
89
M
86
J
82
J
76
A
85
S
87
O
89
N
93
D
91

What delays this route

  • Air traffic control and airport volume49%
  • Airline (crew, maintenance, boarding)25%
  • Late-arriving aircraft23%
  • Severe weather3%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

GSP to EWR questions

What time of day is best to fly GSP to EWR?
9 AM to noon: 93% of flights arrived on time, against 56% for departures 3 to 6 PM.
Which airline is most on time from GSP to EWR?
Republic, with a season-adjusted 82% chance of operating and arriving on time over 743 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on GSP to EWR?
July (76% on time); the best was February (95%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from GSP

Live status: FAA delays and ground stops