Part of the data ring
FlyTime
ISB → LKO

Attock to Lucknow

1h 46mgate to gate

The flight from Islamabad International Airport (ISB) to Chaudhary Charan Singh International Airport (LKO) covers 1,081 km (672 miles) and takes approximately 1h 46m gate to gate for a typical jet.

The route heads south-east on an initial great-circle bearing of 132°, passing near 30.2° N, 77.0° E at its midpoint.

Great-circle strip Plate ISB–LKO
1h 46mGATE TO GATE26m1h 19mISBAttockLKOLucknow132° SOUTH-EAST584 NM02705418111,081 km

Bearing 132° south-east Midpoint 30.2° N, 77.0° E Model 805 km/h + 25 min

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

Flight time1h 46mestimated, gate to gate
Distance1,081km · 672 mi
Nautical584nautical miles
Direction132°south-east

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: 1,081 km.
  3. Airborne time = that distance ÷ 805 km/h, a representative jet cruise speed: 1h 21m.
  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: 1h 46m 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.
1,081 km / 805 km/h = 1h 21m airborne
            + 25 min ground = 1h 46m 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.

ISB LKO

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/h1h 58m2h 23m
Narrowbody jet (A320, 737)780 km/h1h 23m1h 48m
Widebody jet (777, 787, A350)900 km/h1h 12m1h 37m
Private jet (Gulfstream)850 km/h1h 16m1h 42m

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

ISBLKO
AirportIslamabad International AirportChaudhary Charan Singh International Airport
CityAttockLucknow
CountryPakistanIndia
ICAOOPISVILK
Coordinates33.549, 72.825726.7606, 80.8893
Elevation1,761 ft410 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 Attock to Lucknow?

A non-stop flight from Attock (ISB) to Lucknow (LKO) takes about 1h 46m. The great-circle distance is 1,081 km (672 miles, 584 nautical miles), flying south-east on an initial bearing of 132°.

How far is Attock from Lucknow?

1,081 kilometres in a straight line over the earth's surface — 672 miles or 584 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 ISB and LKO?

This page calculates the direct-line time and distance; it does not track airline schedules. At 1,081 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.