Cheapest return flights from London to Belfast in September from $248

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

Return flights

27 Sep - 29 Sep British Airways direct
29 Sep - 06 Oct British Airways direct
27 Sep - 04 Oct British Airways direct
27 Sep - 05 Oct British Airways direct
27 Sep - 07 Oct British Airways direct
22 Sep - 29 Sep British Airways direct
24 Sep - 29 Sep British Airways direct
23 Sep - 07 Oct British Airways direct
23 Sep - 01 Oct British Airways direct
30 Sep - 06 Oct British Airways direct
22 Sep - 01 Oct British Airways direct
22 Sep - 02 Oct British Airways direct
22 Sep - 03 Oct British Airways direct
25 Sep - 29 Sep British Airways direct
24 Sep - 26 Sep British Airways direct
23 Sep - 30 Sep British Airways direct
24 Sep - 25 Sep British Airways direct
30 Sep - 30 Sep British Airways direct
29 Sep - 30 Sep British Airways direct
22 Sep - 30 Sep British Airways direct

Also check the deals for one-way 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

Feel free to contact us with any feedback or request another flight research.