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14-Day Performance
Average Delay
+16.8m On-Time Rate
46.2% Trend
Worsening Based on 13 flights
Current security wait time at LHR:
3 minutes
Performance Overview
46.2%
On Time
(0-15 min) 53.8%
Delayed
(16-45 min) 0%
Severely Delayed
(>45 min)14-Day Delay Trend
Performance by Day of Week
Recent Activity (Last 7 Days)
Apr 3
Friday
Scheduled: 4:20 PM
Actual: 4:38 PM
+18m
Landed
Apr 2
Thursday
Scheduled: 4:20 PM
Actual: 4:45 PM
+25m
Landed
Apr 1
Wednesday
Scheduled: 4:20 PM
Actual: 4:29 PM
+10m
Landed
Mar 31
Tuesday
Scheduled: 4:20 PM
Actual: 4:35 PM
+15m
Landed
Mar 30
Monday
Scheduled: 4:20 PM
Actual: 4:47 PM
+27m
Landed
Mar 29
Sunday
Scheduled: 5:45 PM
Expected: 5:54 PM
+9m
Landed
Mar 28
Saturday
Scheduled: 4:10 PM
Actual: 4:39 PM
+29m
Landed
Flight DL4 FAQ
Over the last 14 days, DL4 from LHR to JFK has an average delay of +16.8 minutes based on 13 flights tracked.
DL4 has a 46.2% on-time rate over the last 14 days, making it frequently delayed. On-time is defined as arriving within 15 minutes of the scheduled time.
The delay trend for DL4 is Worsening — delays have been increasing over the last 14 days.
DL4 is operated by Delta Air Lines and flies from Heathrow Airport (LHR) to JFK International Airport (JFK).