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2,594 km · International

Newark Liberty (EWR) – Luis Munoz Marin (SJU)

In July 2026, 346 flights operated between Newark Liberty and Luis Munoz Marin (both directions), and 69.1% 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
January437394▼ 9.8%
February382332▼ 13.1%
March423372▼ 12.1%
April407381▼ 6.4%
May408268▼ 34.3%
June350320▼ 8.6%
July377346▼ 8.2%
August382––
September303––
October282–in progress
November279––
December383––
Year to date (Jan–Jul)2,7842,413▼ 13.3%

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
January74.1%70.3%▼ 5.1%
February80.9%70.8%▼ 12.5%
March75.4%74.2%▼ 1.6%
April78.9%80.1%▲ 1.5%
May76.7%86.9%▲ 13.3%
June74.0%81.3%▲ 9.9%
July68.2%69.1%▲ 1.3%
August73.3%––
September80.5%––
October77.0%–in progress
November74.9%––
December70.5%––
Year-to-date average (Jan–Jul)75.5%76.1%▲ 0.9%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January037–
February228▲ 1,300.0%
March24▲ 100.0%
April51▼ 80.0%
May62▼ 66.7%
June102▼ 80.0%
July2120▼ 4.8%
August4––
September0––
October6–in progress
November10––
December13––
Year to date (Jan–Jul)4694▲ 104.3%

Airlines on this route

  1. United Airlines 49.3%
  2. JetBlue Airways 30.1%
  3. Frontier Airlines 17.0%
  4. Spirit Airlines 3.6%

Oct 1, 2024 – Jul 31, 2026

By direction

EWR → SJU

Scheduled flights
4,039
Flights operated
3,952
Cancelled
87 · 2.2%
On-time departures
75.8%

SJU → EWR

Scheduled flights
4,037
Flights operated
3,944
Cancelled
93 · 2.3%
On-time departures
75.4%

EWR → SJU and SJU → EWR counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 3,982 49.3% 76.4% 76
JetBlue Airways B6 2,431 30.1% 76.3% 58
Frontier Airlines F9 1,371 17.0% 74.1% 24
Spirit Airlines NK 292 3.6% 65.6% 22

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 delay06:00–07:005.7min · 509 recorded · 497 measured
Gap to highest-delay hour40.4min06:00 ↔ 22:00
Recorded flights8,076EWR–SJU

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · Fewer than 200 measured departures · 6 recorded · 6 measured · Source: the US BTS 01:00 · 75.2% · 422 recorded · 419 measured · Source: the US BTS 02:00 · 79.2% · 254 recorded · 250 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 · 87.3% · 235 recorded · 228 measured · Source: the US BTS 06:00 · 87.9% · 509 recorded · 497 measured · Source: the US BTS 07:00 · 81.3% · 641 recorded · 620 measured · Source: the US BTS 08:00 · 83.1% · 504 recorded · 496 measured · Source: the US BTS 09:00 · 85.3% · 675 recorded · 668 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 100 recorded · 100 measured · Source: the US BTS 11:00 · 74.4% · 421 recorded · 406 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 55 recorded · 55 measured · Source: the US BTS 13:00 · 70.5% · 637 recorded · 620 measured · Source: the US BTS 14:00 · 69.5% · 317 recorded · 305 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 126 recorded · 123 measured · Source: the US BTS 16:00 · 73.4% · 483 recorded · 474 measured · Source: the US BTS 17:00 · 59.1% · 228 recorded · 220 measured · Source: the US BTS 18:00 · 78.4% · 458 recorded · 453 measured · Source: the US BTS 19:00 · 69.0% · 1,132 recorded · 1,109 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 202 recorded · 196 measured · Source: the US BTS 21:00 · 71.6% · 360 recorded · 345 measured · Source: the US BTS 22:00 · 61.1% · 288 recorded · 285 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 23 recorded · 21 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 · Fewer than 200 measured departures · 6 recorded · 6 measured · Source: the US BTS 01:00 · 24.6 min · 422 recorded · 419 measured · Source: the US BTS 02:00 · 13.3 min · 254 recorded · 250 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 · 7.7 min · 235 recorded · 228 measured · Source: the US BTS 06:00 · 5.7 min · 509 recorded · 497 measured · Source: the US BTS 07:00 · 23.3 min · 641 recorded · 620 measured · Source: the US BTS 08:00 · 11.1 min · 504 recorded · 496 measured · Source: the US BTS 09:00 · 5.7 min · 675 recorded · 668 measured · Source: the US BTS 10:00 · Fewer than 200 measured departures · 100 recorded · 100 measured · Source: the US BTS 11:00 · 24.5 min · 421 recorded · 406 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 55 recorded · 55 measured · Source: the US BTS 13:00 · 29.1 min · 637 recorded · 620 measured · Source: the US BTS 14:00 · 27.3 min · 317 recorded · 305 measured · Source: the US BTS 15:00 · Fewer than 200 measured departures · 126 recorded · 123 measured · Source: the US BTS 16:00 · 17.3 min · 483 recorded · 474 measured · Source: the US BTS 17:00 · 26.6 min · 228 recorded · 220 measured · Source: the US BTS 18:00 · 17.1 min · 458 recorded · 453 measured · Source: the US BTS 19:00 · 21.1 min · 1,132 recorded · 1,109 measured · Source: the US BTS 20:00 · Fewer than 200 measured departures · 202 recorded · 196 measured · Source: the US BTS 21:00 · 22.5 min · 360 recorded · 345 measured · Source: the US BTS 22:00 · 46.1 min · 288 recorded · 285 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 23 recorded · 21 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 · 6 · 6 recorded · 6 measured · Source: the US BTS 01:00 · 422 · 422 recorded · 419 measured · Source: the US BTS 02:00 · 254 · 254 recorded · 250 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 · 235 · 235 recorded · 228 measured · Source: the US BTS 06:00 · 509 · 509 recorded · 497 measured · Source: the US BTS 07:00 · 641 · 641 recorded · 620 measured · Source: the US BTS 08:00 · 504 · 504 recorded · 496 measured · Source: the US BTS 09:00 · 675 · 675 recorded · 668 measured · Source: the US BTS 10:00 · 100 · 100 recorded · 100 measured · Source: the US BTS 11:00 · 421 · 421 recorded · 406 measured · Source: the US BTS 12:00 · 55 · 55 recorded · 55 measured · Source: the US BTS 13:00 · 637 · 637 recorded · 620 measured · Source: the US BTS 14:00 · 317 · 317 recorded · 305 measured · Source: the US BTS 15:00 · 126 · 126 recorded · 123 measured · Source: the US BTS 16:00 · 483 · 483 recorded · 474 measured · Source: the US BTS 17:00 · 228 · 228 recorded · 220 measured · Source: the US BTS 18:00 · 458 · 458 recorded · 453 measured · Source: the US BTS 19:00 · 1,132 · 1,132 recorded · 1,109 measured · Source: the US BTS 20:00 · 202 · 202 recorded · 196 measured · Source: the US BTS 21:00 · 360 · 360 recorded · 345 measured · Source: the US BTS 22:00 · 288 · 288 recorded · 285 measured · Source: the US BTS 23:00 · 23 · 23 recorded · 21 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00Fewer than 200 measured departures—66
01:0075.2%24.6 min419422
02:0079.2%13.3 min250254
03:00No observations———
04:00No observations———
05:0087.3%7.7 min228235
06:0087.9%5.7 min497509
07:0081.3%23.3 min620641
08:0083.1%11.1 min496504
09:0085.3%5.7 min668675
10:00Fewer than 200 measured departures—100100
11:0074.4%24.5 min406421
12:00Fewer than 200 measured departures—5555
13:0070.5%29.1 min620637
14:0069.5%27.3 min305317
15:00Fewer than 200 measured departures—123126
16:0073.4%17.3 min474483
17:0059.1%26.6 min220228
18:0078.4%17.1 min453458
19:0069.0%21.1 min1,1091,132
20:00Fewer than 200 measured departures—196202
21:0071.6%22.5 min345360
22:0061.1%46.1 min285288
23:00Fewer than 200 measured departures—2123

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 73.5% · 1,204 recorded · 1,164 measured · Source: the US BTS Tuesday · 79.5% · 1,122 recorded · 1,101 measured · Source: the US BTS Wednesday · 81.2% · 1,155 recorded · 1,141 measured · Source: the US BTS Thursday · 76.0% · 1,141 recorded · 1,133 measured · Source: the US BTS Friday · 75.7% · 1,190 recorded · 1,167 measured · Source: the US BTS Saturday · 73.4% · 1,115 recorded · 1,080 measured · Source: the US BTS Sunday · 69.8% · 1,149 recorded · 1,110 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 22.8 min · 1,204 recorded · 1,164 measured · Source: the US BTS Tuesday · 16.8 min · 1,122 recorded · 1,101 measured · Source: the US BTS Wednesday · 14.5 min · 1,155 recorded · 1,141 measured · Source: the US BTS Thursday · 17.0 min · 1,141 recorded · 1,133 measured · Source: the US BTS Friday · 19.1 min · 1,190 recorded · 1,167 measured · Source: the US BTS Saturday · 22.5 min · 1,115 recorded · 1,080 measured · Source: the US BTS Sunday · 23.6 min · 1,149 recorded · 1,110 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 1,204 · 1,204 recorded · 1,164 measured · Source: the US BTS Tuesday · 1,122 · 1,122 recorded · 1,101 measured · Source: the US BTS Wednesday · 1,155 · 1,155 recorded · 1,141 measured · Source: the US BTS Thursday · 1,141 · 1,141 recorded · 1,133 measured · Source: the US BTS Friday · 1,190 · 1,190 recorded · 1,167 measured · Source: the US BTS Saturday · 1,115 · 1,115 recorded · 1,080 measured · Source: the US BTS Sunday · 1,149 · 1,149 recorded · 1,110 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday73.5%22.8 min1,1641,204
Tuesday79.5%16.8 min1,1011,122
Wednesday81.2%14.5 min1,1411,155
Thursday76.0%17.0 min1,1331,141
Friday75.7%19.1 min1,1671,190
Saturday73.4%22.5 min1,0801,115
Sunday69.8%23.6 min1,1101,149

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 · 72.3% · 868 recorded · 831 measured · Source: the US BTS Feb · 76.2% · 744 recorded · 714 measured · Source: the US BTS Mar · 74.8% · 801 recorded · 795 measured · Source: the US BTS Apr · 79.4% · 794 recorded · 788 measured · Source: the US BTS May · 80.8% · 684 recorded · 676 measured · Source: the US BTS Jun · 77.5% · 682 recorded · 670 measured · Source: the US BTS Jul · 68.6% · 764 recorded · 723 measured · Source: the US BTS Aug · 73.3% · 386 recorded · 382 measured · Source: the US BTS Sep · 80.5% · 303 recorded · 303 measured · Source: the US BTS Oct · 79.2% · 519 recorded · 510 measured · Source: the US BTS Nov · 78.4% · 684 recorded · 672 measured · Source: the US BTS Dec · 70.6% · 847 recorded · 832 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 19.5 min · 868 recorded · 831 measured · Source: the US BTS Feb · 20.1 min · 744 recorded · 714 measured · Source: the US BTS Mar · 18.8 min · 801 recorded · 795 measured · Source: the US BTS Apr · 15.2 min · 794 recorded · 788 measured · Source: the US BTS May · 11.9 min · 684 recorded · 676 measured · Source: the US BTS Jun · 19.2 min · 682 recorded · 670 measured · Source: the US BTS Jul · 38.4 min · 764 recorded · 723 measured · Source: the US BTS Aug · 20.2 min · 386 recorded · 382 measured · Source: the US BTS Sep · 17.1 min · 303 recorded · 303 measured · Source: the US BTS Oct · 14.3 min · 519 recorded · 510 measured · Source: the US BTS Nov · 16.9 min · 684 recorded · 672 measured · Source: the US BTS Dec · 19.2 min · 847 recorded · 832 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 868 · 868 recorded · 831 measured · Source: the US BTS Feb · 744 · 744 recorded · 714 measured · Source: the US BTS Mar · 801 · 801 recorded · 795 measured · Source: the US BTS Apr · 794 · 794 recorded · 788 measured · Source: the US BTS May · 684 · 684 recorded · 676 measured · Source: the US BTS Jun · 682 · 682 recorded · 670 measured · Source: the US BTS Jul · 764 · 764 recorded · 723 measured · Source: the US BTS Aug · 386 · 386 recorded · 382 measured · Source: the US BTS Sep · 303 · 303 recorded · 303 measured · Source: the US BTS Oct · 519 · 519 recorded · 510 measured · Source: the US BTS Nov · 684 · 684 recorded · 672 measured · Source: the US BTS Dec · 847 · 847 recorded · 832 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan72.3%19.5 min831868
Feb76.2%20.1 min714744
Mar74.8%18.8 min795801
Apr79.4%15.2 min788794
May80.8%11.9 min676684
Jun77.5%19.2 min670682
Jul68.6%38.4 min723764
Aug73.3%20.2 min382386
Sep80.5%17.1 min303303
Oct79.2%14.3 min510519
Nov78.4%16.9 min672684
Dec70.6%19.2 min832847

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 73.9% 5,969
  • Delayed >15 min 23.9% 1,927
  • Cancelled 2.2% 180
  • 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

28
28 of 28
Flight numbersBy direction DeparturesOn time
UA1173 SJU → EWR 658 71.8%
UA1556 EWR → SJU 658 85.3%
UA2143 EWR → SJU 658 77.0%
UA2219 SJU → EWR 658 76.3%
UA1543 EWR → SJU 656 66.2%
UA2036 SJU → EWR 656 81.0%
F993573 EWR → SJU 417 61.6%
B662389 EWR → SJU 372 69.8%
B662390 SJU → EWR 309 76.5%
B661889 EWR → SJU 285 83.2%
F993574 SJU → EWR 230 90.0%
F993576 SJU → EWR 223 73.5%
F993571 EWR → SJU 221 83.6%
B661890 SJU → EWR 213 77.0%
B661990 SJU → EWR 197 65.6%
B66390 SJU → EWR 189 71.2%
B66389 EWR → SJU 188 82.4%
F993572 SJU → EWR 186 68.3%
B661390 SJU → EWR 130 62.5%
B661289 EWR → SJU 126 77.2%
B661389 EWR → SJU 97 94.9%
NK455 EWR → SJU 97 66.7%
NK456 SJU → EWR 97 65.2%
B661089 EWR → SJU 95 86.0%
B662890 SJU → EWR 72 91.3%
F993111 SJU → EWR 47 86.7%
F993112 EWR → SJU 46 72.7%
B661090 SJU → EWR 44 84.1%

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
July 2026 346 −8.2% 20 69.1%
June 2026 320 −8.6% 2 81.3%
May 2026 268 −34.3% 2 86.9%
April 2026 381 −6.4% 1 80.1%
March 2026 372 −12.1% 4 74.2%
February 2026 332 −13.1% 28 70.8%
January 2026 394 −9.8% 37 70.3%
December 2025 383 −14.7% 13 70.5%
November 2025 279 −29.0% 10 74.9%
October 2025 282 +23.7% 6 77.0%
September 2025 303 0 80.5%
August 2025 382 4 73.3%
July 2025 377 21 68.2%
June 2025 350 10 74.0%
May 2025 408 6 76.7%
April 2025 407 5 78.9%
March 2025 423 2 75.4%
February 2025 382 2 80.9%
January 2025 437 0 74.1%
December 2024 449 2 70.6%
November 2024 393 2 80.9%
October 2024 228 3 82.0%

How to read this chart

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