Riyadh (RUH) to Islamabad (ISB): 1,677 miles (2,699 km) great-circle, about 3h 50m nonstop by our estimate. Cheapest fare observed: $396 round-trip on Saudia, with 1 stop, departing May 7, 2026.
$396 round-trip, Saudia SV1031, departing 2026-05-07 at 12:00, returning 2026-05-11. The recorded itinerary left on a Thursday, returning on a Monday 4 nights later; the fare was observed 12 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $396, it ranked 14th of the 29 round-trip fares we recorded from RUH (median $414). That is 23.6 cents per great-circle mile (round-trip price over one-way distance), close to the RUH median of 26.0 cents across 29 round-trip routes.
Routes from RUH of similar length: Tashkent (1,716 mi) at $701 and Lahore (1,741 mi) at $352.
Saudia had the cheapest fare on 3 of 29 RUH routes. It is the 16th longest of the 29 routes we track from RUH.
Of 7 departure airports with a fare to Islamabad, Riyadh (RUH) ranked 2nd at $396. Lowest: $327 from Abu Dhabi (AUH); highest: $1168 from London (LGW); 0 nonstop. Cheapest-fare airlines (routes): Saudia (3), Air Arabia (1), Azerbaijan Airlines (1), Etihad (1) and Pegasus Airlines (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Riyadh, Asia/Karachi; flight time is our estimate.