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London to Belfast flights in December 2026 from $24 LCY, LGW, LHR, LTN, SEN, STN → BFS, BHD

London City Airport (LCY), London Gatwick Airport (LGW), London Heathrow Airport (LHR), London Luton Airport (LTN), London Southend Airport (SEN), Stansted Airport (STN) → Belfast International Airport (BFS), George Best Belfast City Airport (BHD)

For departures in December 2026, the cheapest return found recently is $43 with easyJet, 14 Dec – 16 Dec, found 2 days ago. The cheapest one-way found recently is $24 with easyJet, 11 Dec, found 2 days ago.

Return

In December 2026, the cheapest return fare on each of 9 departure dates is usually $48 to $55. Across all 19 departure dates we hold on this route, it is usually $49 to $68. Of the 4 months with enough return fares to compare, December 2026 is usually the cheapest.

Cheapest return found recently

$43

14 Dec – 16 Dec · easyJet

London Southend Airport (SEN) → George Best Belfast City Airport (BHD)

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

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

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
14 Dec – 16 Dec$43easyJetout nonstop, back nonstopfound 2 days agoSee prices for these dates
12 Dec – 16 Dec$45Ryanair UKout nonstop, back nonstopfound 3 days agoSee prices for these dates
9 Dec – 10 Dec$48easyJetout nonstop, back nonstopfound 4 days agoSee prices for these dates
10 Dec – 10 Dec$49easyJetout nonstop, back nonstopfound 2 days agoSee prices for these dates
2 Dec – 2 Dec$49Ryanair UKout nonstop, back nonstopfound 2 days agoSee prices for these dates

Every date we hold

9 departure dates

2 Dec – 2 Dec: $49, found 2 days ago7 Dec – 7 Dec: $55, found 2 days ago8 Dec – 8 Dec: $55, found 2 days ago9 Dec – 10 Dec: $48, found 4 days ago10 Dec – 10 Dec: $49, found 2 days ago11 Dec – 11 Dec: $57, found 2 days ago12 Dec – 16 Dec: $45, found 3 days ago14 Dec – 16 Dec: $43, found 2 days ago29 Dec – 14 Jan 2027: $49, found 2 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
2 Dec – 2 Dec$49Ryanair UKStansted Airport (STN) → Belfast International Airport (BFS)out nonstop, back nonstopfound 2 days agoSee prices for these dates
7 Dec – 7 Dec$55easyJetLondon Luton Airport (LTN) → Belfast International Airport (BFS)out nonstop, back nonstopfound 2 days agoSee prices for these dates
8 Dec – 8 Dec$55easyJetLondon Luton Airport (LTN) → Belfast International Airport (BFS)out nonstop, back nonstopfound 2 days agoSee prices for these dates
9 Dec – 10 Dec$48easyJetLondon Luton Airport (LTN) → Belfast International Airport (BFS)out nonstop, back nonstopfound 4 days agoSee prices for these dates
10 Dec – 10 Dec$49easyJetLondon Luton Airport (LTN) → Belfast International Airport (BFS)out nonstop, back nonstopfound 2 days agoSee prices for these dates
11 Dec – 11 Dec$57easyJetLondon Luton Airport (LTN) → Belfast International Airport (BFS)out nonstop, back nonstopfound 2 days agoSee prices for these dates
12 Dec – 16 Dec$45Ryanair UKStansted Airport (STN) → Belfast International Airport (BFS)out nonstop, back nonstopfound 3 days agoSee prices for these dates
14 Dec – 16 Dec$43easyJetLondon Southend Airport (SEN) → George Best Belfast City Airport (BHD)out nonstop, back nonstopfound 2 days agoSee prices for these dates
29 Dec – 14 Jan 2027$49RyanairStansted Airport (STN) → Belfast International Airport (BFS)out nonstop, back nonstopfound 2 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $43.

November 2026From $543 departure dates14 Nov – 15 Nov · found 6 days agoSee prices for these datesEvery date in November 2026
December 2026From $43Cheapest seen9 departure dates14 Dec – 16 Dec · found 2 days agoSee prices for these dates
January 2027From $564 departure dates5 Jan 2027 – 11 Jan 2027 · found 6 days agoSee prices for these dates
February 2027From $553 departure dates20 Feb 2027 – 23 Feb 2027 · found 7 days agoSee prices for these dates

One-way

In December 2026, the cheapest one-way fare on each of 17 departure dates is usually $25 to $46. Across all 33 departure dates we hold on this route, it is usually $24 to $46. Of the 3 months with enough one-way fares to compare, 1 is usually cheaper than December 2026.

Cheapest one-way found recently

$24

11 Dec · easyJet

London Southend Airport (SEN) → George Best Belfast City Airport (BHD)

nonstop

found 2 days ago

Open this tripCheck today's price

Cheapest we hold, of any age

$22

16 Dec · Ryanair

Stansted Airport (STN) → Belfast International Airport (BFS)

nonstop

found 3 days ago

Open this tripCheck today's price

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
16 Dec$22Ryanairnonstopfound 3 days agoOpen this trip
31 Dec$22Ryanairnonstopfound 7 days agoOpen this trip
14 Dec$22Ryanair UKnonstopfound 4 days agoOpen this trip
11 Dec$24easyJetnonstopfound 2 days agoOpen this trip
8 Dec$25easyJetnonstopfound 2 days agoOpen this trip

Every date we hold

17 departure dates

1 Dec: $28, found 6 days ago2 Dec: $27, found 4 days ago3 Dec: $121, found 5 days ago4 Dec: $27, found 4 days ago5 Dec: $118, found 3 days ago8 Dec: $25, found 2 days ago11 Dec: $24, found 2 days ago12 Dec: $114, found 2 days ago14 Dec: $22, found 4 days ago16 Dec: $22, found 3 days ago18 Dec: $48, found 5 days ago20 Dec: $46, found 4 days ago21 Dec: $34, found 7 days ago24 Dec: $28, found 3 days ago28 Dec: $30, found 4 days ago30 Dec: $25, found 6 days ago31 Dec: $22, found 7 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec$28easyJetLondon Luton Airport (LTN) → Belfast International Airport (BFS)nonstopfound 6 days agoOpen this trip
2 Dec$27easyJetLondon Luton Airport (LTN) → Belfast International Airport (BFS)nonstopfound 4 days agoOpen this trip
3 Dec$121BA CityflyerLondon City Airport (LCY) → George Best Belfast City Airport (BHD)nonstopfound 5 days agoOpen this trip
4 Dec$27easyJetLondon Southend Airport (SEN) → George Best Belfast City Airport (BHD)nonstopfound 4 days agoOpen this trip
5 Dec$118British AirwaysLondon City Airport (LCY) → George Best Belfast City Airport (BHD)nonstopfound 3 days agoOpen this trip
8 Dec$25easyJetLondon Luton Airport (LTN) → Belfast International Airport (BFS)nonstopfound 2 days agoOpen this trip
11 Dec$24easyJetLondon Southend Airport (SEN) → George Best Belfast City Airport (BHD)nonstopfound 2 days agoOpen this trip
12 Dec$114BA CityflyerLondon City Airport (LCY) → George Best Belfast City Airport (BHD)nonstopfound 2 days agoOpen this trip
14 Dec$22Ryanair UKStansted Airport (STN) → Belfast International Airport (BFS)nonstopfound 4 days agoOpen this trip
16 Dec$22RyanairStansted Airport (STN) → Belfast International Airport (BFS)nonstopfound 3 days agoOpen this trip
18 Dec$48easyJetLondon Southend Airport (SEN) → George Best Belfast City Airport (BHD)nonstopfound 5 days agoOpen this trip
20 Dec$46Ryanair UKStansted Airport (STN) → Belfast International Airport (BFS)1 stopfound 4 days agoOpen this trip
21 Dec$34easyJetLondon Southend Airport (SEN) → George Best Belfast City Airport (BHD)nonstopfound 7 days agoOpen this trip
24 Dec$28RyanairStansted Airport (STN) → Belfast International Airport (BFS)nonstopfound 3 days agoOpen this trip
28 Dec$30easyJetLondon Luton Airport (LTN) → Belfast International Airport (BFS)nonstopfound 4 days agoOpen this trip
30 Dec$25RyanairStansted Airport (STN) → Belfast International Airport (BFS)nonstopfound 6 days agoOpen this trip
31 Dec$22RyanairStansted Airport (STN) → Belfast International Airport (BFS)nonstopfound 7 days agoOpen this trip

Which month looks cheapest?

November 2026 is the cheapest month — from $20.

November 2026From $20Cheapest seen9 departure dates18 Nov · found 3 days agoOpen this tripEvery date in November 2026
December 2026From $2217 departure dates16 Dec · found 3 days agoOpen this trip
January 2027From $246 departure dates1 Jan 2027 · found 5 days agoOpen this trip
September 2027From $371 departure date15 Sept 2027 · found 4 days agoOpen this trip

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work