FlightRecord

Newark Liberty International Airport (EWR): Delays & On-Time Performance

Data through May 2026

Newark Liberty International Airport (EWR) is a tale of two seasons: departures ran 87% on-time in May 2026 but sank to 68% in July 2024. Across the year it averages 79% against a national 78%, over roughly 335 departures a day to 95 destinations.

Departures on-time
79%
left <15 min late
Avg dep delay
18 min
Arrivals on-time
75%
Cancelled
2.8%
Destinations
95
nonstop
Airlines
12

Monthly on-time trend

Monthly departure on-time percentage at EWR50%75%100%June 2024: 74% on-time (10,768 flights)74Jun 2024July 2024: 68% on-time (11,102 flights)68August 2024: 74% on-time (10,861 flights)74September 2024: 86% on-time (10,572 flights)86Sep 2024October 2024: 85% on-time (11,260 flights)85November 2024: 79% on-time (10,698 flights)79December 2024: 75% on-time (10,865 flights)75Dec 2024January 2025: 83% on-time (10,144 flights)83February 2025: 81% on-time (9,403 flights)81March 2025: 81% on-time (10,648 flights)81Mar 2025April 2025: 78% on-time (9,507 flights)78May 2025: 70% on-time (9,070 flights)70June 2025: 77% on-time (9,048 flights)77Jun 2025July 2025: 70% on-time (10,478 flights)70August 2025: 77% on-time (10,410 flights)77September 2025: 84% on-time (9,945 flights)84Sep 2025October 2025: 80% on-time (10,578 flights)80November 2025: 79% on-time (10,403 flights)79December 2025: 73% on-time (10,652 flights)73Dec 2025January 2026: 80% on-time (9,977 flights)80February 2026: 81% on-time (9,244 flights)81March 2026: 77% on-time (10,755 flights)77Mar 2026April 2026: 86% on-time (10,358 flights)86May 2026: 87% on-time (10,300 flights)87

Best time of day to depart from EWR

On-time percentage by scheduled departure hour at EWR5 a.m.: 90% on-time (4,606 flights)56 a.m.: 91% on-time (20,715 flights)67 a.m.: 89% on-time (19,479 flights)78 a.m.: 87% on-time (13,620 flights)89 a.m.: 86% on-time (16,278 flights)910 a.m.: 84% on-time (14,981 flights)1011 a.m.: 83% on-time (13,400 flights)1112 p.m.: 80% on-time (9,729 flights)121 p.m.: 80% on-time (12,670 flights)132 p.m.: 77% on-time (15,197 flights)143 p.m.: 75% on-time (14,867 flights)154 p.m.: 75% on-time (17,039 flights)165 p.m.: 70% on-time (14,134 flights)176 p.m.: 70% on-time (15,627 flights)187 p.m.: 67% on-time (15,847 flights)198 p.m.: 65% on-time (13,024 flights)209 p.m.: 67% on-time (12,879 flights)2110 p.m.: 58% on-time (2,836 flights)2211 p.m.: 59% on-time (118 flights)23scheduled departure hour

Busiest routes from EWR

RouteFlights/12moOn-timeAvg delay
EWR → MCO6,65476%19 min
EWR → ATL6,26873%23 min
EWR → ORD5,98472%23 min
EWR → LAX5,00374%22 min
EWR → FLL4,76274%20 min
EWR → SFO4,41673%25 min
EWR → MIA3,97776%20 min
EWR → BOS3,85472%23 min

Most reliable routes

  1. EWR → BZN85%
  2. EWR → SAT85%
  3. EWR → RIC85%
  4. EWR → HHH84%
  5. EWR → SNA84%

Most delay-prone routes

  1. EWR → SMF66%
  2. EWR → JAC68%
  3. EWR → SJU69%
  4. EWR → BQN70%
  5. EWR → ORD72%

Airline performance at EWR

AirlineOn-time departuresAvg delayFlights
Republic Airways86%11 min45,035
Allegiant Air83%16 min1,260
United Airlines78%18 min134,734
American Airlines77%22 min13,019
Alaska Airlines77%20 min6,316
JetBlue Airways77%20 min10,628
Delta Air Lines75%26 min13,181
Spirit Airlines73%24 min18,456
Frontier Airlines71%32 min1,977
Envoy Air71%24 min1,471
Endeavor Air71%31 min956

Frequently asked questions

How often are flights delayed at EWR?
22% of departures from Newark Liberty International Airport left 15+ minutes late between 2024-06 and 2026-05, with an average departure delay of 18 minutes. The national on-time average over the same period was 78%.
What is the best time of day to depart from EWR?
Flights scheduled around 6 a.m. depart on time 91% of the time at EWR, versus 58% around 10 p.m.. Booking before noon is the usual rule of thumb here.
What is the worst month for delays at EWR?
In this dataset, July 2024 was the weakest month at EWR, with 68% of departures on time.
How often are flights cancelled at EWR?
2.8% of scheduled departures from EWR were cancelled in this period, compared with a national rate of 1.6%.

Popular route pages from this airport

Based on 247,046 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.