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449 km · Domestic

Buffalo Niagara (BUF) – Philadelphia (PHL)

In June 2026, 34 flights operated between Buffalo Niagara and Philadelphia (both directions), and 94.1% left on time, according to the US BTS.

Official · June 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 periods12 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January–––
February–30–
March–59–
April–58–
May–58–
June4834▼ 29.2%
July106––
August20––
September30––
October122–in progress
November56––
December35––

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods12 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January–––
February–73.3%–
March–79.7%–
April–89.7%–
May–91.4%–
June60.4%94.1%▲ 55.8%
July68.9%––
August75.0%––
September83.3%––
October82.0%–in progress
November71.4%––
December57.1%––

Cancelled flights by month

The most recent periods12 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January–––
February–3–
March–3–
April–2–
May–1–
June10▼ 100.0%
July7––
August0––
September0––
October1–in progress
November4––
December8––

Airlines on this route

  1. PSA Airlines 54.2%
  2. Republic Airways 36.4%
  3. American Airlines 9.3%

Oct 1, 2024 – Jun 30, 2026

By direction

BUF → PHL

Scheduled flights
365
Flights operated
356
Cancelled
9 · 2.5%
On-time departures
82.9%

PHL → BUF

Scheduled flights
365
Flights operated
344
Cancelled
21 · 5.8%
On-time departures
74.7%

BUF → PHL and PHL → BUF counted separately.

Airlines on this route

Oct 1, 2024 – Jun 30, 2026
AirlineScheduled flights Share On-time departures Cancelled
PSA Airlines OH 396 54.2% 72.1% 19
Republic Airways YX 266 36.4% 86.4% 9
American Airlines AA 68 9.3% 87.9% 2

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 → Jun 17, 2026

Recorded flights730BUF–PHL

Departure hour

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 · 126 · 126 recorded · 120 measured · Source: the US BTS 06:00 · 110 · 110 recorded · 108 measured · Source: the US BTS 07:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 08:00 · 53 · 53 recorded · 53 measured · Source: the US BTS 09:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 10:00 · 50 · 50 recorded · 50 measured · Source: the US BTS 11:00 · 4 · 4 recorded · 3 measured · Source: the US BTS 12:00 · 28 · 28 recorded · 28 measured · Source: the US BTS 13:00 · 10 · 10 recorded · 9 measured · Source: the US BTS 14:00 · 6 · 6 recorded · 6 measured · Source: the US BTS 15:00 · 3 · 3 recorded · 3 measured · Source: the US BTS 16:00 · 15 · 15 recorded · 15 measured · Source: the US BTS 17:00 · 24 · 24 recorded · 24 measured · Source: the US BTS 18:00 · 50 · 50 recorded · 49 measured · Source: the US BTS 19:00 · 31 · 31 recorded · 28 measured · Source: the US BTS 20:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 21:00 · 202 · 202 recorded · 186 measured · Source: the US BTS 22:00 · 13 · 13 recorded · 13 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.

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
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—120126
06:00Fewer than 200 measured departures—108110
07:00Fewer than 200 measured departures—55
08:00Fewer than 200 measured departures—5353
09:00No observations———
10:00Fewer than 200 measured departures—5050
11:00Fewer than 200 measured departures—34
12:00Fewer than 200 measured departures—2828
13:00Fewer than 200 measured departures—910
14:00Fewer than 200 measured departures—66
15:00Fewer than 200 measured departures—33
16:00Fewer than 200 measured departures—1515
17:00Fewer than 200 measured departures—2424
18:00Fewer than 200 measured departures—4950
19:00Fewer than 200 measured departures—2831
20:00No observations———
21:00Fewer than 200 measured departures—186202
22:00Fewer than 200 measured departures—1313
23:00No observations———

Day of week

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 113 · 113 recorded · 103 measured · Source: the US BTS Tuesday · 108 · 108 recorded · 106 measured · Source: the US BTS Wednesday · 104 · 104 recorded · 98 measured · Source: the US BTS Thursday · 96 · 96 recorded · 92 measured · Source: the US BTS Friday · 100 · 100 recorded · 99 measured · Source: the US BTS Saturday · 106 · 106 recorded · 102 measured · Source: the US BTS Sunday · 103 · 103 recorded · 100 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
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
MondayFewer than 200 measured departures—103113
TuesdayFewer than 200 measured departures—106108
WednesdayFewer than 200 measured departures—98104
ThursdayFewer than 200 measured departures—9296
FridayFewer than 200 measured departures—99100
SaturdayFewer than 200 measured departures—102106
SundayFewer than 200 measured departures—100103

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 · No observations · 0 recorded · 0 measured · Source: the US BTS Feb · 33 · 33 recorded · 30 measured · Source: the US BTS Mar · 62 · 62 recorded · 59 measured · Source: the US BTS Apr · 60 · 60 recorded · 58 measured · Source: the US BTS May · 59 · 59 recorded · 58 measured · Source: the US BTS Jun · 83 · 83 recorded · 82 measured · Source: the US BTS Jul · 113 · 113 recorded · 106 measured · Source: the US BTS Aug · 20 · 20 recorded · 20 measured · Source: the US BTS Sep · 30 · 30 recorded · 30 measured · Source: the US BTS Oct · 159 · 159 recorded · 158 measured · Source: the US BTS Nov · 68 · 68 recorded · 64 measured · Source: the US BTS Dec · 43 · 43 recorded · 35 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
JanNo observations———
FebFewer than 200 measured departures—3033
MarFewer than 200 measured departures—5962
AprFewer than 200 measured departures—5860
MayFewer than 200 measured departures—5859
JunFewer than 200 measured departures—8283
JulFewer than 200 measured departures—106113
AugFewer than 200 measured departures—2020
SepFewer than 200 measured departures—3030
OctFewer than 200 measured departures—158159
NovFewer than 200 measured departures—6468
DecFewer than 200 measured departures—3543

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 75.6% 552
  • Delayed >15 min 20.3% 148
  • Cancelled 4.1% 30
  • 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

10
10 of 10
Flight numbersBy direction DeparturesOn time
OH5119 PHL → BUF 59 58.2%
OH5128 BUF → PHL 58 72.4%
OH5426 PHL → BUF 45 65.0%
YX4650 BUF → PHL 44 93.2%
YX4651 PHL → BUF 44 93.0%
OH5617 BUF → PHL 32 81.3%
OH5625 PHL → BUF 32 57.1%
OH5446 BUF → PHL 30 81.5%
YX4588 PHL → BUF 30 81.5%
YX4590 BUF → PHL 30 82.1%

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
June 2026 34 −29.2% 0 94.1%
May 2026 58 1 91.4%
April 2026 58 2 89.7%
March 2026 59 3 79.7%
February 2026 30 3 73.3%
December 2025 35 8 57.1%
November 2025 56 +600.0% 4 71.4%
October 2025 122 +238.9% 1 82.0%
September 2025 30 0 83.3%
August 2025 20 0 75.0%
July 2025 106 7 68.9%
June 2025 48 1 60.4%
November 2024 8 0 100.0%
October 2024 36 0 100.0%

How to read this chart

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