Cheapest one-way flights from London to Belfast in September from 36€

Best time to book flights for London (LGW) to Belfast (BFS) flights at AirHint

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

One-Way flights

28 Sep easyJet direct
09 Sep easyJet direct
02 Sep easyJet direct
20 Sep easyJet direct
01 Sep easyJet direct
26 Sep easyJet direct
15 Sep easyJet 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