Aviation Data
EN
EnglishTiếng Việt

453 km · Domestic

Buffalo Niagara (BUF) – Newark Liberty (EWR)

In July 2026, 121 flights operated between Buffalo Niagara and Newark Liberty (both directions), and 83.5% 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
January6117▼ 72.1%
February832▼ 97.6%
March11153▼ 52.3%
April5966▲ 11.9%
May49170▲ 246.9%
June18140▲ 677.8%
July100121▲ 21.0%
August41––
September11––
October74–in progress
November117––
December103––
Year to date (Jan–Jul)481569▲ 18.3%

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
January85.2%94.1%▲ 10.4%
February89.2%100.0%▲ 12.1%
March90.1%86.8%▼ 3.7%
April78.0%86.4%▲ 10.8%
May75.5%95.9%▲ 27.0%
June66.7%86.4%▲ 29.5%
July72.0%83.5%▲ 16.0%
August78.0%––
September72.7%––
October75.7%–in progress
November80.3%––
December83.5%––
Year-to-date average (Jan–Jul)79.5%90.4%▲ 13.7%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January10▼ 100.0%
February52▼ 60.0%
March12▲ 100.0%
April10▼ 100.0%
May14▲ 300.0%
June08–
July823▲ 187.5%
August0––
September0––
October0–in progress
November1––
December8––
Year to date (Jan–Jul)1739▲ 129.4%

Airlines on this route

  1. Republic Airways 65.3%
  2. United Airlines 34.7%

Oct 1, 2024 – Jul 31, 2026

By direction

BUF → EWR

Scheduled flights
865
Flights operated
835
Cancelled
30 · 3.5%
On-time departures
89.1%

EWR → BUF

Scheduled flights
865
Flights operated
830
Cancelled
35 · 4.0%
On-time departures
77.5%

BUF → EWR and EWR → BUF counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Republic Airways YX 1,129 65.3% 88.0% 54
United Airlines UA 601 34.7% 74.7% 11

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 delay06:00–07:005.4min · 501 recorded · 491 measured
Gap to highest-delay hour16.5min06:00 ↔ 21:00
Recorded flights1,730BUF–EWR

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 · 1 recorded · 1 measured · Source: the US BTS 06:00 · 90.8% · 501 recorded · 491 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 104 recorded · 103 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 64 recorded · 63 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 177 recorded · 173 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 58 recorded · 57 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 18 recorded · 18 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 72 recorded · 72 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 19 recorded · 19 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 100 recorded · 93 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 14 recorded · 12 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 4 recorded · 3 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 97 recorded · 83 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 53 recorded · 47 measured · Source: the US BTS 21:00 · 66.6% · 348 recorded · 335 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 100 recorded · 95 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 · 1 recorded · 1 measured · Source: the US BTS 06:00 · 5.4 min · 501 recorded · 491 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · Fewer than 200 measured departures · 104 recorded · 103 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 64 recorded · 63 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 177 recorded · 173 measured · Source: the US BTS 11:00 · Fewer than 200 measured departures · 58 recorded · 57 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 18 recorded · 18 measured · Source: the US BTS 13:00 · Fewer than 200 measured departures · 72 recorded · 72 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 19 recorded · 19 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · Fewer than 200 measured departures · 100 recorded · 93 measured · Source: the US BTS 17:00 · Fewer than 200 measured departures · 14 recorded · 12 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 4 recorded · 3 measured · Source: the US BTS 19:00 · Fewer than 200 measured departures · 97 recorded · 83 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 53 recorded · 47 measured · Source: the US BTS 21:00 · 21.9 min · 348 recorded · 335 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 100 recorded · 95 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 · 1 · 1 recorded · 1 measured · Source: the US BTS 06:00 · 501 · 501 recorded · 491 measured · Source: the US BTS 07:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 08:00 · 104 · 104 recorded · 103 measured · Source: the US BTS 09:00 · 64 · 64 recorded · 63 measured · Source: the US BTS 10:00 · 177 · 177 recorded · 173 measured · Source: the US BTS 11:00 · 58 · 58 recorded · 57 measured · Source: the US BTS 12:00 · 18 · 18 recorded · 18 measured · Source: the US BTS 13:00 · 72 · 72 recorded · 72 measured · Source: the US BTS 14:00 · 19 · 19 recorded · 19 measured · Source: the US BTS 15:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 16:00 · 100 · 100 recorded · 93 measured · Source: the US BTS 17:00 · 14 · 14 recorded · 12 measured · Source: the US BTS 18:00 · 4 · 4 recorded · 3 measured · Source: the US BTS 19:00 · 97 · 97 recorded · 83 measured · Source: the US BTS 20:00 · 53 · 53 recorded · 47 measured · Source: the US BTS 21:00 · 348 · 348 recorded · 335 measured · Source: the US BTS 22:00 · 100 · 100 recorded · 95 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—11
06:0090.8%5.4 min491501
07:00No observations———
08:00Fewer than 200 measured departures—103104
09:00Fewer than 200 measured departures—6364
10:00Fewer than 200 measured departures—173177
11:00Fewer than 200 measured departures—5758
12:00Fewer than 200 measured departures—1818
13:00Fewer than 200 measured departures—7272
14:00Fewer than 200 measured departures—1919
15:00No observations———
16:00Fewer than 200 measured departures—93100
17:00Fewer than 200 measured departures—1214
18:00Fewer than 200 measured departures—34
19:00Fewer than 200 measured departures—8397
20:00Fewer than 200 measured departures—4753
21:0066.6%21.9 min335348
22:00Fewer than 200 measured departures—95100
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 80.5% · 266 recorded · 256 measured · Source: the US BTS Tuesday · 86.2% · 264 recorded · 253 measured · Source: the US BTS Wednesday · 84.0% · 260 recorded · 250 measured · Source: the US BTS Thursday · 81.5% · 269 recorded · 259 measured · Source: the US BTS Friday · 88.3% · 254 recorded · 248 measured · Source: the US BTS Saturday · Fewer than 200 measured departures · 176 recorded · 172 measured · Source: the US BTS Sunday · 79.3% · 241 recorded · 227 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 · 12.7 min · 266 recorded · 256 measured · Source: the US BTS Tuesday · 6.5 min · 264 recorded · 253 measured · Source: the US BTS Wednesday · 7.3 min · 260 recorded · 250 measured · Source: the US BTS Thursday · 13.9 min · 269 recorded · 259 measured · Source: the US BTS Friday · 4.7 min · 254 recorded · 248 measured · Source: the US BTS Saturday · Fewer than 200 measured departures · 176 recorded · 172 measured · Source: the US BTS Sunday · 15.0 min · 241 recorded · 227 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 · 266 · 266 recorded · 256 measured · Source: the US BTS Tuesday · 264 · 264 recorded · 253 measured · Source: the US BTS Wednesday · 260 · 260 recorded · 250 measured · Source: the US BTS Thursday · 269 · 269 recorded · 259 measured · Source: the US BTS Friday · 254 · 254 recorded · 248 measured · Source: the US BTS Saturday · 176 · 176 recorded · 172 measured · Source: the US BTS Sunday · 241 · 241 recorded · 227 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
Monday80.5%12.7 min256266
Tuesday86.2%6.5 min253264
Wednesday84.0%7.3 min250260
Thursday81.5%13.9 min259269
Friday88.3%4.7 min248254
SaturdayFewer than 200 measured departures—172176
Sunday79.3%15.0 min227241

Month of year

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

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · Fewer than 200 measured departures · 79 recorded · 78 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 92 recorded · 85 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 167 recorded · 164 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 126 recorded · 125 measured · Source: the US BTS May · 91.3% · 224 recorded · 219 measured · Source: the US BTS Jun · Fewer than 200 measured departures · 166 recorded · 158 measured · Source: the US BTS Jul · 78.3% · 252 recorded · 221 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 41 recorded · 41 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 11 recorded · 11 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 171 recorded · 171 measured · Source: the US BTS Nov · 79.0% · 225 recorded · 224 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 176 recorded · 168 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
Jan · Fewer than 200 measured departures · 79 recorded · 78 measured · Source: the US BTS Feb · Fewer than 200 measured departures · 92 recorded · 85 measured · Source: the US BTS Mar · Fewer than 200 measured departures · 167 recorded · 164 measured · Source: the US BTS Apr · Fewer than 200 measured departures · 126 recorded · 125 measured · Source: the US BTS May · 3.0 min · 224 recorded · 219 measured · Source: the US BTS Jun · Fewer than 200 measured departures · 166 recorded · 158 measured · Source: the US BTS Jul · 16.3 min · 252 recorded · 221 measured · Source: the US BTS Aug · Fewer than 200 measured departures · 41 recorded · 41 measured · Source: the US BTS Sep · Fewer than 200 measured departures · 11 recorded · 11 measured · Source: the US BTS Oct · Fewer than 200 measured departures · 171 recorded · 171 measured · Source: the US BTS Nov · 12.2 min · 225 recorded · 224 measured · Source: the US BTS Dec · Fewer than 200 measured departures · 176 recorded · 168 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
Jan · 79 · 79 recorded · 78 measured · Source: the US BTS Feb · 92 · 92 recorded · 85 measured · Source: the US BTS Mar · 167 · 167 recorded · 164 measured · Source: the US BTS Apr · 126 · 126 recorded · 125 measured · Source: the US BTS May · 224 · 224 recorded · 219 measured · Source: the US BTS Jun · 166 · 166 recorded · 158 measured · Source: the US BTS Jul · 252 · 252 recorded · 221 measured · Source: the US BTS Aug · 41 · 41 recorded · 41 measured · Source: the US BTS Sep · 11 · 11 recorded · 11 measured · Source: the US BTS Oct · 171 · 171 recorded · 171 measured · Source: the US BTS Nov · 225 · 225 recorded · 224 measured · Source: the US BTS Dec · 176 · 176 recorded · 168 measured · Source: the US BTS

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

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
JanFewer than 200 measured departures—7879
FebFewer than 200 measured departures—8592
MarFewer than 200 measured departures—164167
AprFewer than 200 measured departures—125126
May91.3%3.0 min219224
JunFewer than 200 measured departures—158166
Jul78.3%16.3 min221252
AugFewer than 200 measured departures—4141
SepFewer than 200 measured departures—1111
OctFewer than 200 measured departures—171171
Nov79.0%12.2 min224225
DecFewer than 200 measured departures—168176

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 80.2% 1,387
  • Delayed >15 min 16.1% 278
  • Cancelled 3.8% 65
  • 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

26
26 of 26
Flight numbersBy direction DeparturesOn time
UA2212 EWR → BUF 177 57.5%
UA2357 BUF → EWR 150 94.6%
YX3529 EWR → BUF 133 91.7%
YX3607 EWR → BUF 91 86.8%
UA1598 BUF → EWR 79 86.1%
YX3457 EWR → BUF 73 91.8%
YX3444 BUF → EWR 71 81.7%
YX3420 BUF → EWR 57 84.6%
YX3716 BUF → EWR 56 82.6%
UA225 EWR → BUF 54 50.0%
YX3476 EWR → BUF 54 82.6%
YX3436 BUF → EWR 52 86.5%
YX3489 BUF → EWR 52 88.5%
YX3537 EWR → BUF 52 88.2%
UA2622 BUF → EWR 36 91.7%
YX3432 BUF → EWR 36 100.0%
YX3522 EWR → BUF 36 79.4%
UA1513 EWR → BUF 35 55.9%
YX3442 BUF → EWR 35 96.9%
YX3595 EWR → BUF 34 77.4%
YX3670 BUF → EWR 34 90.9%
YX3484 BUF → EWR 32 93.8%
YX3715 BUF → EWR 32 82.1%
UA2335 EWR → BUF 31 67.7%
UA1739 BUF → EWR 30 93.3%
YX3527 BUF → EWR 30 96.7%

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 121 +21.0% 23 83.5%
June 2026 140 +677.8% 8 86.4%
May 2026 170 +246.9% 4 95.9%
April 2026 66 +11.9% 0 86.4%
March 2026 53 −52.3% 2 86.8%
February 2026 2 −97.6% 2 100.0%
January 2026 17 −72.1% 0 94.1%
December 2025 103 +58.5% 8 83.5%
November 2025 117 +9.3% 1 80.3%
October 2025 74 −23.7% 0 75.7%
September 2025 11 0 72.7%
August 2025 41 0 78.0%
July 2025 100 8 72.0%
June 2025 18 0 66.7%
May 2025 49 1 75.5%
April 2025 59 1 78.0%
March 2025 111 1 90.1%
February 2025 83 5 89.2%
January 2025 61 1 85.2%
December 2024 65 0 67.7%
November 2024 107 0 77.6%
October 2024 97 0 87.6%

How to read this chart

Loading the guide…