ON TIMEBOARD

DL 684 on time

Delta Air Lines 684: New York to Portland at 5:59 p.m. (past 12 months)

On time
61%
364 flights · likely 56–66%
Cancelled
3.6%
of scheduled flights
Typical arrival
+4 min
median vs schedule
When late
+68 min
average delay
Similar flights
64%
DL, same route & hour

About 1 in 3 DL 684 flights from New York arrived 15+ minutes late, diverted or cancelled over the past year (39%); 3.6% were cancelled. The typical flight landed 4 minutes late.

DL 684: JFK → PDX

Scheduled to leave New York at 5:59 p.m. local time. Over the past year it arrived on time 61% of the time (364 flights), in line with other DL flights on the route at that hour (64%). Last seen in the data Aug 31, 2026.

Usually Delta Air Lines's last flight of the day from New York to Portland (51% of days). Delta Air Lines's last JFK–PDX flight was cancelled 3.8% of the time, against 0.5% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 8:30 a.m. the next morning.

Month by month

40%70%100%Sep 2025: 77% on time (30 flights)77SepOct 2025: 68% on time (31 flights)68OctNov 2025: 55% on time (29 flights)55NovDec 2025: 52% on time (31 flights)52DecJan 2026: 71% on time (31 flights)71JanFeb 2026: 61% on time (28 flights)61FebMar 2026: 45% on time (31 flights)45MarApr 2026: 60% on time (30 flights)60AprMay 2026: 65% on time (31 flights)65MayJun 2026: 70% on time (30 flights)70JunJul 2026: 61% on time (31 flights)61JulAug 2026: 52% on time (31 flights)52Aug

By day of week

DayFlightsOn time
Monday5360%
Tuesday5262%
Wednesday5269%
Thursday5159%
Friday5254%
Saturday5269%
Sunday5256%

Why it was late

Air traffic & airport (NAS) 53%Airline (crew, maintenance, ops) 26%Late inbound plane 21%

All flights JFK → PDX · Connecting off DL 684? Check the risk

Questions

How often is DL 684 from JFK to PDX late?

Delta Air Lines 684 from New York, NY to Portland, OR arrived 15 or more minutes late, was diverted or was cancelled on 39% of 364 scheduled flights between September 2025 and August 2026. 3.6% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.