Route Reliability

Route reliability

Newark (EWR) to Denver (DEN): which airline is most on time?

On-time arrivals, cancellations and long delays for every airline that reported nonstop flights from Newark, NJ (EWR) to Denver, CO (DEN), September 2025 to August 2026.

Historical performance Official DOT data through August 2026 · Not live flight status

Newark, NJDenver, CO

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Three-letter airport codes, nonstop U.S. domestic flights. One direction at a time.

Route at a glance · September 2025 to August 2026

EWR to DEN

Newark, NJ to Denver, CO

On time
76.1%vs 75.6% U.S. average About average
Cancelled
1.5%vs 1.9% U.S. average Better than average
60+ min late
8.8%vs 8.1% U.S. average About average
Scheduled flights
3,349in 12 months1 airline
Only rated airline
United Airlines76.1% on time · 3,349 flights

On time about as often as the U.S. average, with fewer cancellations.

Compared with all U.S. flights, September 2025 to August 2026. “About average” means within 1.5 points for on time, 0.3 for cancelled and 1 for 60+ minutes late.

Airlines on this route

Ranked by on-time arrival

Airlines from EWR to DEN, September 2025 to August 2026. Rates are shares of all scheduled flights.
Airline On time Cancelled 60+ min late Avg delay when late Diverted Flights
1. United Airlines 76.1% 1.5% 8.8% 84 min 0.6% 3,349

On time = arrived within 15 minutes of schedule. Avg delay when late = average arrival delay of flights 15+ minutes late. "Most reliable" needs at least 300 flights in 12 months. Tap a heading to sort.

What this means

How EWR to DEN compares.

  • United Airlines was the only airline with enough flights on this route to rate (3,349 flights). 76.1% of them arrived within 15 minutes of schedule.
  • 1.5% of flights on this route were cancelled (about 1 in 67), about the same as the U.S. average of 1.9%.
  • 8.8% of flights, about 1 in 11, arrived an hour or more late. When a flight was late (15+ minutes), the average arrival delay was 84 min.
  • Overall, 76.1% of flights on this route arrived on time, 0.5 points higher than the U.S. average of 75.6%.
  • Over the last 3 years, March was the most reliable month on this route (85.0% on time) and July the least reliable (65.8%).
  • Cancellations peaked in January, when 8.0% of flights were cancelled.
  • Flights scheduled to depart 6 am to 7 am were the most punctual (93.0% on time); flights scheduled to depart 5 pm to 6 pm were the least (64.0%).
  • In the other direction, Denver (DEN) to Newark (EWR), 76.8% of flights were on time and 1.5% were cancelled. Compare airlines DEN to EWR.

Best and worst months to fly EWR to DEN

Jan 70.8%
Feb 76.0%
Mar 85.0%
Apr 79.1%
May 74.8%
Jun 68.9%
Jul 65.8%
Aug 67.8%
Sep 83.5%
Oct 80.0%
Nov 81.8%
Dec 80.2%
Share of scheduled flights on time 12-month average 76.1%
All airlines combined, by calendar month, September 2023 to August 2026 (3 years pooled). Scale starts at zero.
Show as table
PeriodOn timeFlights
January 70.8% 727
February 76.0% 641
March 85.0% 781
April 79.1% 751
May 74.8% 805
June 68.9% 801
July 65.8% 895
August 67.8% 884
September 83.5% 869
October 80.0% 885
November 81.8% 771
December 80.2% 812

Month by month, last 12 months

Sep 84.9%
Oct 70.3%
Nov 77.1%
Dec 71.3%
Jan 71.3%
Feb 77.6%
Mar 81.1%
Apr 88.9%
May 87.3%
Jun 74.0%
Jul 69.0%
Aug 61.2%
Share of scheduled flights on time U.S. average 75.6%
All airlines combined, September 2025 to August 2026. Scale starts at zero.
Show as table
PeriodOn timeFlights
Sep 2025 84.9% 298
Oct 2025 70.3% 300
Nov 2025 77.1% 266
Dec 2025 71.3% 279
Jan 2026 71.3% 251
Feb 2026 77.6% 219
Mar 2026 81.1% 275
Apr 2026 88.9% 270
May 2026 87.3% 291
Jun 2026 74.0% 300
Jul 2026 69.0% 306
Aug 2026 61.2% 294

Best and worst departure times

<6a Insufficient sample
6a 93.0%
7a 81.4%
8a 80.8%
9a 83.2%
10a 78.7%
11a 81.1%
12p 85.4%
1p 78.6%
2p 71.5%
3p 71.1%
4p 70.7%
5p 64.0%
6p 65.7%
7p 69.4%
8p 67.1%
9p 74.0%
10p Insufficient sample
Share of scheduled flights on time
By scheduled local departure hour at EWR, September 2025 to August 2026. Hours with no scheduled flights are omitted. Scale starts at zero.
Show as table
PeriodOn timeFlights
Departing before 6 am Insufficient sample 2
Departing 6 am to 7 am 93.0% 298
Departing 7 am to 8 am 81.4% 366
Departing 8 am to 9 am 80.8% 52
Departing 9 am to 10 am 83.2% 196
Departing 10 am to 11 am 78.7% 169
Departing 11 am to noon 81.1% 228
Departing noon to 1 pm 85.4% 137
Departing 1 pm to 2 pm 78.6% 145
Departing 2 pm to 3 pm 71.5% 319
Departing 3 pm to 4 pm 71.1% 346
Departing 4 pm to 5 pm 70.7% 222
Departing 5 pm to 6 pm 64.0% 161
Departing 6 pm to 7 pm 65.7% 265
Departing 7 pm to 8 pm 69.4% 85
Departing 8 pm to 9 pm 67.1% 234
Departing 9 pm to 10 pm 74.0% 123
Departing 10 pm to 11 pm Insufficient sample 1
Woman at an airport window watching a plane take off
Photo: Depositphotos (licensed stock, illustrative only). Credits

Sources & data dates

Source
U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
Period
September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
Data through
August 2026
Processed
2026-11-03
Scope
Nonstop scheduled flights from Newark, NJ (EWR) to Denver, CO (DEN), one direction. Airlines that report to the DOT only.
Method
Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.

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