Riyadh (RUH) to Kolkata (CCU): 2,634 miles (4,239 km) great-circle, about 5h 45m nonstop by our estimate. Cheapest fare observed: $371 round-trip on Biman Bangladesh Airlines, with 1 stop, departing July 2, 2026.
$371 round-trip, Biman Bangladesh Airlines BG340, departing 2026-07-02 at 07:10, returning 2026-08-02. The recorded itinerary left on a Thursday, returning on a Sunday 31 nights later; the fare was observed 68 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $371, it ranked 12th of the 29 round-trip fares we recorded from RUH (median $414). That is 14.1 cents per great-circle mile (round-trip price over one-way distance), below the RUH median of 26.0 cents across 29 round-trip routes.
Routes from RUH of similar length: St. Petersburg (2,534 mi) at $651 and Dhaka (2,739 mi) at $414.
RUH to CCU is the only one of 29 RUH routes where Biman Bangladesh Airlines priced cheapest. It is the 3rd longest of the 29 routes we track from RUH.
Of 7 departure airports with a fare to Kolkata, Riyadh (RUH) ranked 5th at $371. Lowest: $124 from Delhi (DEL); highest: $861 from Doha (DOH); 4 nonstop. Cheapest-fare airlines (routes): Air India Express (2), Air India (1), Biman Bangladesh Airlines (1), Emirates (1), flydubai (1) and SpiceJet (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Riyadh, Asia/Kolkata; flight time is our estimate.