Cheap flights from Southampton to Belfast from $78 SOU → BFS, BHD
Southampton Airport (SOU) → Belfast International Airport (BFS), George Best Belfast City Airport (BHD)
The cheapest one-way found recently is $78 with Aer Lingus, 16 Nov, found today.
- Cheapest one-way found recently
- $78, Aer Lingus, found today
- Cheapest month to fly
- November 2026, one-way fares from $78 found in the last 7 days
- Airlines with nonstop flights
- Aer Lingus
- Shortest nonstop flight found
- 1 h 35 min
One-way
The cheapest one-way fare on each of 3 departure dates is usually $84 to $97.
Cheapest one-way found recently
$78
16 Nov · Aer Lingus
Southampton Airport (SOU) → George Best Belfast City Airport (BHD)
Leaves 7:40 p.m. · 1 h 35 min trip
nonstop
found today
Cheapest nonstop one-way
$78
16 Nov · Aer Lingus
Southampton Airport (SOU) → George Best Belfast City Airport (BHD)
Leaves 7:40 p.m. · 1 h 35 min trip
nonstop
found today
Found recently, and the cheapest we hold
$78 16 Novfound todayOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 35 days, 27 Sept to 12 Nov, the cheapest one-way we saw each day was $54 to $160.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 14 Nov to 18 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 1 other departure date within 3 days of 16 Nov, and it is not cheaper.
Every date we hold
3 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 14 Nov | $89 | Aer Lingus | Southampton Airport (SOU) → George Best Belfast City Airport (BHD) | nonstop | found today | Open this trip |
| 16 Nov | $78 | Aer Lingus | Southampton Airport (SOU) → George Best Belfast City Airport (BHD) | nonstop | found today | Open this trip |
| 18 Dec | $104 | easyJet | Southampton Airport (SOU) → Belfast International Airport (BFS) | 1 stop | found 5 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $78.
Airlines on the cheapest dates: Aer Lingus, easyJet.
Premium cabin fares from Southampton to Belfast
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 16 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Southampton to Belfast?
One-way
The cheapest fares were 90 to 179 days before departure.
From the cheapest one-way each day between 27 Sept and 12 Nov (35 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.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $61 | $60 | +5% | 12 |
| 7–13 days | $60 | $54 | +3% | 17 |
| 30–59 days | $60 | $60 | +3% | 13 |
| 60–89 days | $64 | $58 | +10% | 16 |
| 90–179 days | $58 | $58 | Cheapest seen | 7 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
London → Belfast
111 km from Southampton
$41
3 Dec – 3 Dec · STN → BFS · out nonstop, back nonstop
found 5 hours ago
Bristol → Belfast
102 km from Southampton
$145
26 Feb 2027 – 1 Mar 2027 · BRS → BFS · out nonstop, back nonstop
found 4 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
London → Belfast
111 km from Southampton
$20
$58 less than flying from Southampton
2 Dec · STN → BFS · nonstop
found today
Bristol → Belfast
102 km from Southampton
$83
$5 more than flying from Southampton
12 Dec · BRS → BFS · 1 stop
found yesterday
Cardiff → Belfast
139 km from Southampton
$92
$14 more than flying from Southampton
12 Mar 2027 · CWL → BHD · nonstop
found 2 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest one-way found recently is for 16 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a one-way flight from Southampton to Belfast?
The cheapest one-way found recently is $78 with Aer Lingus, 16 Nov, found today. The cheapest one-way fare on each of 3 departure dates is usually $84 to $97.
What is the cheapest month to fly from Southampton to Belfast?
November 2026 is the cheapest month for a one-way, from $78, 16 Nov, found today.
How far ahead should I book a flight from Southampton to Belfast?
In 35 days of prices between 27 Sept and 12 Nov, one-way fares were cheapest 90 to 179 days before departure.
Is there a direct flight from Southampton to Belfast?
Yes, the cheapest nonstop one-way found recently is $78 with Aer Lingus, 16 Nov, found today.
How long is the flight from Southampton to Belfast?
The cheapest nonstop one-way found recently, with Aer Lingus on 16 Nov, takes 1 h 35 min from Southampton Airport (SOU) to George Best Belfast City Airport (BHD).
Which airlines have the cheapest flights from Southampton to Belfast?
Between 14 Nov and 18 Dec, Aer Lingus has the cheapest one-way on 2 of the 3 departure dates we hold, and easyJet on 1.
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