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828 km · Domestic

Greenville-Spartanburg (GSP) – Philadelphia (PHL)

In July 2026, 60 flights operated between Greenville-Spartanburg and Philadelphia (both directions), and 63.3% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January5890▲ 55.2%
February8467▼ 20.2%
March8959▼ 33.7%
April6160▼ 1.6%
May10962▼ 43.1%
June6559▼ 9.2%
July60600.0%
August62––
September152––
October72–in progress
November58––
December59––
Year to date (Jan–Jul)526457▼ 13.1%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January84.5%75.6%▼ 10.5%
February72.6%76.1%▲ 4.8%
March78.7%76.3%▼ 3.0%
April80.3%96.7%▲ 20.4%
May66.1%91.9%▲ 39.0%
June72.3%67.8%▼ 6.2%
July71.7%63.3%▼ 11.7%
August83.9%––
September95.4%––
October88.9%–in progress
November81.0%––
December67.8%––
Year-to-date average (Jan–Jul)75.2%78.2%▲ 4.1%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January48▲ 100.0%
February43▼ 25.0%
March13▲ 200.0%
April00–
May50▼ 100.0%
June31▼ 66.7%
July220.0%
August0––
September0––
October0–in progress
November2––
December3––
Year to date (Jan–Jul)1917▼ 10.5%

Airlines on this route

  1. PSA Airlines 99.9%
  2. American Airlines 0.1%
  3. Republic Airways 0.1%

Oct 1, 2024 – Jul 31, 2026

By direction

GSP → PHL

Scheduled flights
803
Flights operated
784
Cancelled
19 · 2.4%
On-time departures
87.5%

PHL → GSP

Scheduled flights
802
Flights operated
778
Cancelled
24 · 3.0%
On-time departures
72.2%

GSP → PHL and PHL → GSP counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
PSA Airlines OH 1,603 99.9% 79.9% 43
American Airlines AA 1 0.1% 100.0% 0
Republic Airways YX 1 0.1% 0.0% 0

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay08:00–09:007.5min · 235 recorded · 232 measured
Gap to highest-delay hour18.6min08:00 ↔ 18:00
Recorded flights1,605GSP–PHL

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 20 recorded · 19 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 201 recorded · 195 measured · Source: the US BTS 07:00 · 90.7% · 241 recorded · 236 measured · Source: the US BTS 08:00 · 84.1% · 235 recorded · 232 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 55 recorded · 55 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 25 recorded · 23 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 22 recorded · 22 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 11 recorded · 11 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 60 recorded · 60 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 31 recorded · 30 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 115 recorded · 112 measured · Source: the US BTS 18:00 · 69.5% · 523 recorded · 502 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 64 recorded · 63 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 20 recorded · 19 measured · Source: the US BTS 06:00 · Fewer than 200 measured departures · 201 recorded · 195 measured · Source: the US BTS 07:00 · 13.7 min · 241 recorded · 236 measured · Source: the US BTS 08:00 · 7.5 min · 235 recorded · 232 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 55 recorded · 55 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 25 recorded · 23 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 22 recorded · 22 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 1 recorded · 1 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 11 recorded · 11 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 60 recorded · 60 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 31 recorded · 30 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 115 recorded · 112 measured · Source: the US BTS 18:00 · 26.1 min · 523 recorded · 502 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 64 recorded · 63 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 20 · 20 recorded · 19 measured · Source: the US BTS 06:00 · 201 · 201 recorded · 195 measured · Source: the US BTS 07:00 · 241 · 241 recorded · 236 measured · Source: the US BTS 08:00 · 235 · 235 recorded · 232 measured · Source: the US BTS 09:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 10:00 · 55 · 55 recorded · 55 measured · Source: the US BTS 11:00 · 25 · 25 recorded · 23 measured · Source: the US BTS 12:00 · 22 · 22 recorded · 22 measured · Source: the US BTS 13:00 · 1 · 1 recorded · 1 measured · Source: the US BTS 14:00 · 11 · 11 recorded · 11 measured · Source: the US BTS 15:00 · 60 · 60 recorded · 60 measured · Source: the US BTS 16:00 · 31 · 31 recorded · 30 measured · Source: the US BTS 17:00 · 115 · 115 recorded · 112 measured · Source: the US BTS 18:00 · 523 · 523 recorded · 502 measured · Source: the US BTS 19:00 · 64 · 64 recorded · 63 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00Fewer than 200 measured departures—1920
06:00Fewer than 200 measured departures—195201
07:0090.7%13.7 min236241
08:0084.1%7.5 min232235
09:00Fewer than 200 measured departures—11
10:00Fewer than 200 measured departures—5555
11:00Fewer than 200 measured departures—2325
12:00Fewer than 200 measured departures—2222
13:00Fewer than 200 measured departures—11
14:00Fewer than 200 measured departures—1111
15:00Fewer than 200 measured departures—6060
16:00Fewer than 200 measured departures—3031
17:00Fewer than 200 measured departures—112115
18:0069.5%26.1 min502523
19:00Fewer than 200 measured departures—6364
20:00No observations———
21:00No observations———
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 80.1% · 236 recorded · 226 measured · Source: the US BTS Tuesday · 83.7% · 220 recorded · 215 measured · Source: the US BTS Wednesday · 83.3% · 230 recorded · 228 measured · Source: the US BTS Thursday · 77.5% · 230 recorded · 227 measured · Source: the US BTS Friday · 75.7% · 241 recorded · 235 measured · Source: the US BTS Saturday · 79.9% · 214 recorded · 209 measured · Source: the US BTS Sunday · 79.3% · 234 recorded · 222 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 20.4 min · 236 recorded · 226 measured · Source: the US BTS Tuesday · 12.3 min · 220 recorded · 215 measured · Source: the US BTS Wednesday · 16.2 min · 230 recorded · 228 measured · Source: the US BTS Thursday · 21.2 min · 230 recorded · 227 measured · Source: the US BTS Friday · 17.5 min · 241 recorded · 235 measured · Source: the US BTS Saturday · 13.4 min · 214 recorded · 209 measured · Source: the US BTS Sunday · 15.2 min · 234 recorded · 222 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 236 · 236 recorded · 226 measured · Source: the US BTS Tuesday · 220 · 220 recorded · 215 measured · Source: the US BTS Wednesday · 230 · 230 recorded · 228 measured · Source: the US BTS Thursday · 230 · 230 recorded · 227 measured · Source: the US BTS Friday · 241 · 241 recorded · 235 measured · Source: the US BTS Saturday · 214 · 214 recorded · 209 measured · Source: the US BTS Sunday · 234 · 234 recorded · 222 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday80.1%20.4 min226236
Tuesday83.7%12.3 min215220
Wednesday83.3%16.2 min228230
Thursday77.5%21.2 min227230
Friday75.7%17.5 min235241
Saturday79.9%13.4 min209214
Sunday79.3%15.2 min222234

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 160 · 160 recorded · 148 measured · Source: the US BTS Feb · 158 · 158 recorded · 151 measured · Source: the US BTS Mar · 152 · 152 recorded · 148 measured · Source: the US BTS Apr · 121 · 121 recorded · 121 measured · Source: the US BTS May · 176 · 176 recorded · 171 measured · Source: the US BTS Jun · 128 · 128 recorded · 124 measured · Source: the US BTS Jul · 124 · 124 recorded · 120 measured · Source: the US BTS Aug · 62 · 62 recorded · 62 measured · Source: the US BTS Sep · 152 · 152 recorded · 152 measured · Source: the US BTS Oct · 126 · 126 recorded · 126 measured · Source: the US BTS Nov · 125 · 125 recorded · 123 measured · Source: the US BTS Dec · 121 · 121 recorded · 116 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

No bucket in this view has 200 measured departures yet. Flight counts are shown; on-time and delay charts become available when the sample is large enough.

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—148160
FebFewer than 200 measured departures—151158
MarFewer than 200 measured departures—148152
AprFewer than 200 measured departures—121121
MayFewer than 200 measured departures—171176
JunFewer than 200 measured departures—124128
JulFewer than 200 measured departures—120124
AugFewer than 200 measured departures—6262
SepFewer than 200 measured departures—152152
OctFewer than 200 measured departures—126126
NovFewer than 200 measured departures—123125
DecFewer than 200 measured departures—116121

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 77.8% 1,248
  • Delayed >15 min 19.6% 314
  • Cancelled 2.7% 43
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

8
8 of 8
Flight numbersBy direction DeparturesOn time
OH5618 PHL → GSP 401 68.0%
OH5130 GSP → PHL 278 89.2%
OH5058 PHL → GSP 255 73.6%
OH5621 GSP → PHL 231 88.8%
OH5333 GSP → PHL 82 83.1%
OH5427 PHL → GSP 63 82.3%
OH5427 GSP → PHL 63 82.0%
OH5395 GSP → PHL 59 94.8%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 60 +0.0% 2 63.3%
June 2026 59 −9.2% 1 67.8%
May 2026 62 −43.1% 0 91.9%
April 2026 60 −1.6% 0 96.7%
March 2026 59 −33.7% 3 76.3%
February 2026 67 −20.2% 3 76.1%
January 2026 90 +55.2% 8 75.6%
December 2025 59 +3.5% 3 67.8%
November 2025 58 −10.8% 2 81.0%
October 2025 72 +33.3% 0 88.9%
September 2025 152 0 95.4%
August 2025 62 0 83.9%
July 2025 60 2 71.7%
June 2025 65 3 72.3%
May 2025 109 5 66.1%
April 2025 61 0 80.3%
March 2025 89 1 78.7%
February 2025 84 4 72.6%
January 2025 58 4 84.5%
December 2024 57 2 84.2%
November 2024 65 0 87.7%
October 2024 54 0 87.0%

How to read this chart

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