Cheap flights from London to Belfast from $21 LCY, LGW, LHR, LTN, SEN, STN → BFS, BHD

Found recently, and the cheapest we hold

It is also the cheapest return we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $40 to $44.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 2-night return fares leaving within 3 days of 14 Dec to compare.

Every date we hold

582 fares on 19 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $43.

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $18 to $21.

At $21, the cheapest one-way found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

No. We hold one-way fares on 3 other departure dates within 3 days of 18 Nov, and none is cheaper.

Every date we hold

249 fares on 33 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $20.

Return

Fares 14 to 29 days before departure were typically 27% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Fares 14 to 29 days before departure were typically 34% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from London to Belfast?

The cheapest return found recently is $43 with easyJet, 14 Dec to 16 Dec, found 2 days ago. The cheapest return fare on each of 19 departure dates is usually $49 to $68.

How much is a one-way flight from London to Belfast?

The cheapest one-way found recently is $21 with Ryanair, 18 Nov, found 2 days ago. The cheapest one-way we hold, of any age, is $20 with Ryanair UK, 18 Nov, found 3 days ago. The cheapest one-way fare on each of 33 departure dates is usually $24 to $46.

What is the cheapest month to fly from London to Belfast?

December 2026 is the cheapest month for a return, from $43, 14 Dec to 16 Dec, found 2 days ago. November 2026 is the cheapest month for a one-way, from $20, 18 Nov, found 3 days ago.

Every date in December 2026

Every date in November 2026

How far ahead should I book a flight from London to Belfast?

In 49 days of prices between 24 Sept and 11 Nov, return fares 14 to 29 days before departure were typically 27% lower than 0 to 6 days before departure. One-way fares 14 to 29 days before departure were typically 34% lower than 0 to 6 days before departure.

Is there a direct flight from London to Belfast?

Yes, the cheapest nonstop return found recently is $43 with easyJet, 14 Dec to 16 Dec, found 2 days ago. The cheapest nonstop one-way found recently is $21 with Ryanair, 18 Nov, found 2 days ago.

How long is the flight from London to Belfast?

The cheapest nonstop one-way found recently, with Ryanair on 18 Nov, takes 1 h 20 min from Stansted Airport (STN) to Belfast International Airport (BFS).

Which airlines have the cheapest flights from London to Belfast?

Between 13 Nov and 20 Feb 2027, easyJet has the cheapest return on 9 of the 19 departure dates we hold, Ryanair UK on 5 and Ryanair on 5. Between 14 Nov and 15 Sept 2027, easyJet has the cheapest one-way on 17 of the 33 departure dates we hold, Ryanair on 5 and Ryanair UK on 5.