Delhi (DEL) to Colombo (CMB): 1,488 miles (2,395 km) great-circle, about 3h 30m nonstop by our estimate. Cheapest fare observed: $348 round-trip on SriLankan Airlines, nonstop, departing July 15, 2026.
$348 round-trip, SriLankan Airlines UL196, departing 2026-07-15 at 18:45, returning 2026-07-18. The recorded itinerary left on a Wednesday, returning on a Saturday 3 nights later; the fare was observed 81 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $348, it ranked 15th of the 30 round-trip fares we recorded from DEL (median $371). That is 23.4 cents per great-circle mile (round-trip price over one-way distance), below the DEL median of 27.9 cents across 30 round-trip routes.
Routes from DEL of similar length: Trivandrum (1,387 mi) at $229 and Dubai (1,356 mi) at $475.
SriLankan Airlines had the cheapest fare on 2 of 30 DEL routes. It is the 13th longest of the 30 routes we track from DEL.
Of 15 departure airports with a fare to Colombo, Delhi (DEL) ranked 4th at $348. Lowest: $210 from Chennai (MAA); highest: $1494 from Edmonton (YEG); 5 nonstop. Cheapest-fare airlines (routes): IndiGo (3), SriLankan Airlines (2), Air Arabia Abu Dhabi (1), AirAsia (1), airline 01 (1) and Batik Air Malaysia (1), plus 6 more.
The reverse, Colombo (CMB) to Delhi (DEL), was $335 round-trip on Air India, nonstop, departing May 12, 2026. Colombo to Delhi flights.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Kolkata, Asia/Colombo; flight time is our estimate.