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Route Reliability

Washington → New York

IAD–JFK · 228 miles · Washington Dulles International Airport to John F. Kennedy International Airport

39
Bring Snacks
WanderNerd Reliability Score
66%
Arrive within 15 minutes
23 min
Average arrival delay
7.0%
Cancelled
713
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 66% of the time across 713 flights. No comparison to make.

What the data says

The late departure is the smart one here.

IAD–JFK flights departing between 6–9 PM arrived on time 66% of the time, versus 53% between 3–6 PM.

Sunday scaries are real for this one.

IAD–JFK flights arrived on time 71% of the time on Wednesdays and just 54% on Sundays. That gap is worth planning around.

Keep a backup plan handy.

This route was cancelled 7.0% of the time. Typical for U.S. flights is around 1–2%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon68%(93 flights)
  • Tue65%(95 flights)
  • Wed71%(98 flights)
  • Thu62%(95 flights)
  • Fri71%(97 flights)
  • Sat68%(96 flights)
  • Sun54%(89 flights)
On-time by departure window
  • 12–3 PM66%(332 flights)
  • 3–6 PM53%(15 flights)
  • 6–9 PM66%(316 flights)
On-time trend by month
68%
May

Jun 56% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202556%50
July 202564%50
August 202566%61
September 202570%60
October 202561%61
November 202567%55
December 202559%46
January 202683%52
February 202662%50
March 202656%59
April 202676%59
May 202668%60

Same trip, other airports

Keep nerding

Based on 713 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.