Cheapest one-way flights from London to Belfast in September from 101€

Best time to book flights for London (LCY) to Belfast (BHD) flights at AirHint

AirHint found the following cheapest one-way flights from London (LCY) to Belfast (BHD) in September 2025 (see full year).

One-Way flights

13 Sep British Airways direct
02 Sep British Airways direct
01 Sep British Airways direct

Also check the deals for return flights from London to Belfast in September.

Skyscanner

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 Belfast

Cheap car rent in Belfast