| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| May 31 | LHR | JFK | 16:50 | 19:10 |
Landed
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| May 29 | LHR | JFK | 16:20 | 18:11 |
Landed
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| May 27 | LHR | JFK | 16:43 | 18:36 |
Landed
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| May 24 | LHR | JFK | 16:47 | 18:56 |
Landed
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| May 22 | LHR | JFK | 16:49 | 18:50 |
Landed
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| May 20 | LHR | JFK | 16:37 | 19:09 |
Landed
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| May 17 | LHR | JFK | 17:00 | 19:18 |
Landed
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| May 15 | LHR | JFK | 16:38 | 18:50 |
Landed
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| May 13 | LHR | JFK | 18:55 | 20:57 |
Delayed
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| May 10 | LHR | JFK | 16:53 | 19:03 |
Landed
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KLM Flight KL4840 connects London, United Kingdom to New York, United States, taking off from London Heathrow Airport LHR and landing at New York John F. Kennedy International Airport JFK.
How long is the KL4840 flight from London to New York?
The average flight time from London to New York is 7 hours and 8 minutes. The flight distance is 5539 km / 3442 miles and the average flight speed is 776 km/h / 482 mph.
What is the On-Time Performance (OTP) of KLM Flight KL4840 London to New York?
The Airportia On-Time Performance Rating for KLM Flight KL4840 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight KL4840 arriving at?
Flight KL4840 arrives at New York John F. Kennedy International Airport (JFK) Terminal 4.
When was the latest KL4840 flight?
The latest flight took off on Sunday, May 31st, 2026 with the flight status being Landed on 19:10.
How else can the flight KL4840 be referenced as?
This KLM flight can also be referenced as KLM4840, KL 4840, KLM 4840.
How often is flight KL4840 delayed?
On average, 10% of all KL4840 flights are delayed. The average delay is 102 minutes.
Can I get compensation for my delayed or cancelled KL4840 flight or baggage issues?
If your KL4840 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our KL4840 Flight Tracker above for more details.
Other flights departing from London LHR: BA482, BA560, BA882, VS47
Other flights arriving at New York JFK: JL4, DL213, VS47, DL8840
All flights connecting London LHR to New York JFK.