JFK to IAD flight delays
New York, NY (JFK) Washington, VA (IAD) · 228 miles
531 flights · July 2024 – July 2026 · US Bureau of Transportation Statistics
82.32%
Arrived on time
Within 15 minutes of schedule
0.75%
Cancelled
Share of scheduled flights
91 min
When late, late by
Average across delayed arrivals
17 min
Delay per flight
Averaged over every flight flown
What the record says about this route
Which airline you fly changes the odds here. Republic Airways arrived on time 9.3 points more often than SkyWest Airlines over the same period on the same route — same airports, same weather, same air traffic control. A gap that survives all of that is about how the two airlines are run.
The season swings this route hard. In April it ran 44.8 points more punctual than in August — 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 shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 91 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The two directions do not behave alike. IAD to JFK arrives on time 14.1 points less often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Which airline should you fly on this route?
Over July 2024 – July 2026, Republic Airways arrived on time most often on JFK to IAD. SkyWest Airlines was late most often. Flights ran closest to schedule in October and worst in August.
Every airline on JFK 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 |
|---|---|---|---|---|---|
| SkyWest Airlines | 342 | 78.4% | 0.88% | 100 min | C |
| Republic Airways | 115 | 87.72% | 0.87% | 63 min | A |
| Endeavor Air | 74 | 91.89% | 0% | 40 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
IAD to JFK Washington back to New York 68.21% on time FOther routes from New York
Common questions
Are flights from New York to Washington usually delayed?
82.32% of flights on the JFK to IAD route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airline is most on time from New York to Washington?
Republic Airways, at 87.72% on time across 115 flights. The least punctual on the route was SkyWest Airlines at 78.4%.
How often are JFK to IAD flights cancelled?
0.75% of scheduled flights did not operate — about 8 in every thousand. That is in the normal range.
What is the best month to fly New York to Washington?
April, when 100% of flights arrived on time. The worst was August at 55.2%.
When JFK to IAD flights are late, how late are they?
About 91 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 JFK to IAD during July 2024 – July 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 →