AirHint found the following cheapest return flights from London (LHR) to Kathmandu (KTM) in April 2026 (see full year).

Return flights

11 Apr - 27 Apr	British Airways
13 Apr - 30 Apr	British Airways
13 Apr - 29 Apr	Air India
13 Apr - 20 Apr	British Airways
13 Apr - 27 Apr	Air India
23 Apr - 11 May	Air India
24 Apr - 05 May	Air India
16 Apr - 27 Apr	Air India
12 Apr - 25 Apr	IndiGo
12 Apr - 30 Apr	IndiGo
08 Apr - 20 Apr	IndiGo
15 Apr - 30 Apr	IndiGo
27 Apr - 04 May	Gulf Air
13 Apr - 04 May	IndiGo
15 Apr - 04 May	IndiGo
22 Apr - 06 May	IndiGo
20 Apr - 12 May	IndiGo
14 Apr - 04 May	IndiGo
21 Apr - 12 May	IndiGo
06 Apr - 04 May	IndiGo

Also check the deals for one-way flights from London to Kathmandu in April.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Kathmandu

Cheap car rent in Kathmandu

Cheapest return flights from London to Kathmandu in April from 570€

Return flights