Part of the data ring
FlyTime
KEF → JFK

Reykjavík to New York

5h 36mgate to gate

The flight from Keflavik International Airport (KEF) to John F. Kennedy International Airport (JFK) covers 4,163 km (2,587 miles) and takes approximately 5h 36m gate to gate for a typical jet.

The route heads west on an initial great-circle bearing of 257°, passing near 54.9° N, 55.5° W at its midpoint.

Great-circle strip Plate KEF–JFK
5h 36mGATE TO GATE1h 24m4h 12mKEFReykjavíkJFKNew York257° WEST2,248 NM01,0412,0823,1224,163 km

Bearing 257° west Midpoint 54.9° N, 55.5° W Model 805 km/h + 25 min

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

Flight time5h 36mestimated, gate to gate
Distance4,163km · 2,587 mi
Nautical2,248nautical miles
Direction257°west

How this is worked out

  1. Take both airports' published coordinates from OurAirports — nothing here is scraped from another flight site.
  2. Great-circle distance by haversine on a mean earth radius of 6,371.0088 km: 4,163 km.
  3. Airborne time = that distance ÷ 805 km/h, a representative jet cruise speed: 5h 10m.
  4. Add a flat 25 minutes for pushback, taxi, climb, descent and taxi-in — the reason a 400 km hop is never half an hour: 5h 36m gate to gate.
  5. Winds, aircraft type and airline schedule padding are not modelled. The cruise-speed table shows how much that assumption is worth.
4,163 km / 805 km/h = 5h 10m airborne
            + 25 min ground = 5h 36m gate to gate

The full model, and what it ignores →

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

The same route, plotted on a world grid

The strip above gives the route its length and its shape. This gives it a position: latitude and longitude only, no coastlines, because a hand-drawn coastline would be decoration pretending to be data. On a flat grid the shortest path looks bent; on a globe it is straight.

KEF JFK

Flight time at different cruise speeds

Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.

Typical ofCruise speedAirborneGate to gate
Turboprop / regional550 km/h7h 34m7h 59m
Narrowbody jet (A320, 737)780 km/h5h 20m5h 45m
Widebody jet (777, 787, A350)900 km/h4h 38m5h 03m
Private jet (Gulfstream)850 km/h4h 54m5h 19m

Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

Both airports

KEFJFK
AirportKeflavik International AirportJohn F. Kennedy International Airport
CityReykjavíkNew York
CountryIcelandUnited States
ICAOBIKFKJFK
Coordinates63.985, -22.605640.6394, -73.7793
Elevation171 ft13 ft

Every figure on this plate is geometry. The shape of the earth is knowable; the airline's schedule is not.

Questions this plate answers

How long is the flight from Reykjavík to New York?

A non-stop flight from Reykjavík (KEF) to New York (JFK) takes about 5h 36m. The great-circle distance is 4,163 km (2,587 miles, 2,248 nautical miles), flying west on an initial bearing of 257°.

How far is Reykjavík from New York?

4,163 kilometres in a straight line over the earth's surface — 2,587 miles or 2,248 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.

Is there a non-stop flight between KEF and JFK?

This page calculates the direct-line time and distance; it does not track airline schedules. At 4,163 km the route is comfortably within range of a non-stop service if an airline chooses to fly it. Check an airline or booking site for what is actually scheduled.

Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.

See all 10 sites in this family, with what each one answers

Published by

Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.