EWR to IAD flight delays
Newark, NJ (EWR) Washington, VA (IAD) · 212 miles
1,502 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
73.87%
Arrived on time
Within 15 minutes of schedule
2.33%
Cancelled
Share of scheduled flights
75 min
When late, late by
Average across delayed arrivals
20 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In May it ran 38.7 points more punctual than in July — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The route has been getting better. The later months in the record run 14.3 points more punctual than the earlier ones, which usually means a schedule that was too tight has been given more room.
Only United Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Flights from Newark to Washington run late more often than the average route, though not severely.
Which airline should you fly on this route?
Over January 2025 – August 2026, United Airlines arrived on time most often on EWR to IAD. Flights ran closest to schedule in May and worst in July.
Every airline on EWR to IAD
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| United Airlines | 1,474 | 73.89% | 2.24% | 75 min | D |
| Republic Airways | 28 | 73.08% | 7.14% | 68 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
IAD to EWR Washington back to Newark 75.29% on time DOther routes from Newark
Common questions
Are flights from Newark to Washington usually delayed?
73.87% of flights on the EWR to IAD route arrived within 15 minutes of schedule, so roughly 3 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from Newark to Washington?
Only United Airlines appears in the published record on this route, with 1,474 flights and 73.89% arriving on time.
How often are EWR to IAD flights cancelled?
2.33% of scheduled flights did not operate — about 23 in every thousand. That is in the normal range.
What is the best month to fly Newark to Washington?
May, when 86.5% of flights arrived on time. The worst was July at 47.8%.
When EWR to IAD flights are late, how late are they?
About 75 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on EWR to IAD during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →