Cheap flights from Belfast Intl Airport to Southampton from £33
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SOU
2 Nov — 9 Nov1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Belfast Intl to Southampton Eastleigh are usually found in March or April, booked 46 days in advance, depart on a Thursday or Tuesday and return on a Tuesday
Cheap flight deals from Belfast Intl to Southampton
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest flights from Belfast Intl to Southampton
Explore the most affordable flight options available from Belfast Intl to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 October 2026.
Mon 12/1010:35 -
Nonstop1h 15m
Mon 19/1012:25 -
Nonstop1h 15m
Deal found 30/9£54
Sat 10/1010:30 -
Nonstop1h 15m
Mon 12/1012:25 -
Nonstop1h 15m
Deal found 29/9£56
Sat 10/1010:30 -
Nonstop1h 15m
Sun 11/1012:35 -
Nonstop1h 15m
Deal found 30/9£57
Sat 17/1010:30 -
Nonstop1h 15m
Mon 19/1012:25 -
Nonstop1h 15m
Deal found 28/9£60
Sat 3/1010:30 -
Nonstop1h 15m
Sun 4/1012:35 -
Nonstop1h 15m
Deal found 28/9£76
Best flights from Belfast Intl to Southampton
Discover carefully curated flight deals from Belfast Intl to Southampton that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 October 2026.
Sat 17/1010:30 -
Nonstop1h 15m
Mon 19/1012:25 -
Nonstop1h 15m
Deal found 28/9£60
Sat 17/1010:30 -
Nonstop1h 15m
Wed 21/1010:45 -
2 stops12h 35m
Deal found 2/10£133
Fri 16/1010:35 -
Nonstop1h 15m
Mon 19/1012:25 -
Nonstop1h 15m
Deal found 3/10£98
Fri 23/1013:35 -
Nonstop1h 15m
Mon 26/1010:45 -
Nonstop1h 20m
Deal found 1/10£101
Sat 17/1010:30 -
Nonstop1h 15m
Wed 21/1010:45 -
1 stop8h 55m
Deal found 2/10£110
Fri 23/1013:35 -
Nonstop1h 15m
Mon 26/1017:55 -
2 stops14h 00m
Deal found 1/10£146
Tue 13/1021:15 -
1 stop13h 00m
Fri 16/1012:20 -
Nonstop1h 15m
Deal found 29/9£118
Wed 28/1008:15 -
1 stop24h 25m
Wed 4/1109:15 -
1 stop11h 40m
Deal found 30/9£147
Direct flights from Belfast Intl to Southampton
Explore direct flight options from Belfast Intl to Southampton based on user searches, and compare prices and availability for your desired travel dates. Data last updated 3 October 2026.
Sat 17/1010:30 -
Nonstop1h 15m
Mon 19/1012:25 -
Nonstop1h 15m
Deal found 28/9£60
Fri 16/1010:35 -
Nonstop1h 15m
Mon 19/1012:25 -
Nonstop1h 15m
Deal found 3/10£98
Fri 23/1013:35 -
Nonstop1h 15m
Mon 26/1010:45 -
Nonstop1h 20m
Deal found 1/10£101
Fri 16/1010:35 -
Nonstop1h 15m
Sun 18/1012:35 -
Nonstop1h 15m
Deal found 2/10£110
Fri 23/1013:35 -
Nonstop1h 15m
Sat 24/1012:15 -
Nonstop1h 15m
Deal found 29/9£129
Last-minute flights from Belfast Intl to Southampton
Discover last-minute flight deals from Belfast Intl to Southampton. Data last updated 3 October 2026 and is based on user searches.
Sat 3/1010:30 -
Nonstop1h 15m
Sun 4/1012:35 -
Nonstop1h 15m
Deal found 28/9£76
Sat 10/1010:30 -
Nonstop1h 15m
Mon 12/1012:25 -
Nonstop1h 15m
Deal found 29/9£56
Sat 10/1010:30 -
Nonstop1h 15m
Sun 11/1012:35 -
Nonstop1h 15m
Deal found 30/9£57
Mon 12/1010:35 -
Nonstop1h 15m
Mon 19/1012:25 -
Nonstop1h 15m
Deal found 30/9£54
Sat 17/1010:30 -
Nonstop1h 15m
Mon 19/1012:25 -
Nonstop1h 15m
Deal found 28/9£60
One-way flights from Belfast Intl to Southampton
Search for one-way flight options from Belfast Intl to Southampton. Find affordable one-way fares based on user searches. Data last updated 3 October 2026.
Sun 11/1010:50 -
Nonstop1h 15m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/9£33
Fri 8/107:00 -
1 stop5h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/9£51
Thu 7/121:05 -
1 stop15h 50m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/9£57
Sun 10/111:15 -
1 stop4h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 2/10£65
Sat 19/1219:55 -
1 stop19h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 1/10£69
Sat 7/1115:25 -
2 stops17h 20m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 1/10£98
Sun 10/107:50 -
2 stops11h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 2/10£113
Sat 7/1119:55 -
1 stop19h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 1/10£114
Thu 7/107:20 -
2 stops12h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 29/9£117
Fri 8/108:20 -
2 stops11h 10m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 30/9£131
Find flight deals from Belfast Intl to Southampton
Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to Southampton (SOU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 3 October 2026.
Customise your flight search to find flights from Belfast Intl to Southampton that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 3 October 2026.
Use the filters below to find and compare flights from Belfast Intl Airport to Southampton that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Fri 8/1
07:00-12:55
1 stop5h 55m
Southampton Eastleigh
Wed 31/12
00:00-00:00
Nonstop0h 00m
£51
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Thu 7/1
21:05-12:55
1 stop15h 50m
Southampton Eastleigh
Wed 31/12
00:00-00:00
Nonstop0h 00m
£57
Fastest return journey
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Sat 17/10
10:30-11:45
Nonstop1h 15m
Southampton Eastleigh
Mon 19/10
12:25-13:40
Nonstop1h 15m
£60
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Sun 10/1
11:15-15:35
1 stop4h 20m
Southampton Eastleigh
Wed 31/12
00:00-00:00
Nonstop0h 00m
£65
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Sat 19/12
19:55-15:35
1 stop19h 40m
Southampton Eastleigh
Wed 31/12
00:00-00:00
Nonstop0h 00m
£69
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Sun 11/10
20:20-20:05
1 stop23h 45m
Southampton Eastleigh
Wed 31/12
00:00-00:00
Nonstop0h 00m
£86
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Fri 16/10
10:35-11:50
Nonstop1h 15m
Southampton Eastleigh
Mon 19/10
12:25-13:40
Nonstop1h 15m
£98
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Fri 23/10
13:35-14:50
Nonstop1h 15m
Southampton Eastleigh
Mon 26/10
10:45-12:05
Nonstop1h 20m
£101
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Sat 17/10
10:30-11:45
Nonstop1h 15m
Southampton Eastleigh
Wed 21/10
10:45-19:40
1 stop8h 55m
£110
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Sun 10/1
07:50-19:30
2 stops11h 40m
Southampton Eastleigh
Wed 31/12
00:00-00:00
Nonstop0h 00m
£113
Flights are sorted by cheapest return flights first.
Deals found on 30/9
Showing 1-10 of 18 resultsSorted by cheapest first
1
2
Best time to book a flight from Belfast Intl to Southampton
Have a flexible travel schedule? Discover the best time to fly to Southampton from Belfast Intl with our price prediction graph.
BFS-SOU
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Belfast Intl Airport to Southampton
How far ahead should I book a flight from Belfast Intl Airport to Southampton?
To ensure you get the cheapest price possible for a flight from Belfast Intl Airport to Southampton, you should look to book at least 45 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Belfast Intl Airport to Southampton?
Currently, March is the cheapest month in which you can book a flight from Belfast Intl Airport to Southampton (average of £98). Flying from Belfast Intl Airport to Southampton in January is currently the most expensive (average of £208). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BFS to SOU?
Find hourly flight availability from Belfast Intl to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 October 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 58% on flights from Belfast Intl Airport to Southampton by exploring options for tickets at midday.
How much does it cost for a return flight from Belfast Intl Airport to Southampton?
Airfare is below average for this route at the moment.
Belfast Intl Airport to Southampton flights typically cost between £93 and £144 in October.The cheapest return price found within the last 5 days was £60 on easyJet (17 Oct–19 Oct).
Reviews of airlines servicing Southampton
Get insights into the airlines that provide service to Southampton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southampton. Reviews last updated 3 October 2026.
Read reviews from past customers who have flown with Aer Lingus and easyJet
from Belfast Intl Airport to Southampton. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Related info for your journey
Find useful and relevant information for your journey from Belfast Intl to Southampton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Southampton from Belfast Intl?
Southampton Eastleigh (SOU) is the airport you will fly into if you book a flight from Belfast Intl to Southampton. You should not have trouble finding flights to Eastleigh from Belfast Intl; the airport handles an average of 0 inbound flights from Belfast Intl per day. You should also have plenty of airline options to choose from since 2 airlines have flights to the Southampton airport from Belfast Intl. It is only a 3.5 mi journey from Eastleigh (SOU) to Southampton’s city center.
How long is the flight from Belfast Intl Airport to Southampton?
Departing from Belfast Intl Airport to Southampton will take you 1h 15m. Belfast Intl Airport and Southampton are separated by a distance of 326 mi. Most flights are nonstop.
What are the cheapest airlines flying from Belfast Intl Airport to Southampton round-trip?
Currently priced at £49, easyJet will fly you from Belfast Intl Airport to Southampton and back. In addition to easyJet, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Aer Lingus for as low as £83. These flights start at 63% lower than the current average price 3 months from now.
What are the cheapest flights from Belfast Intl Airport to Southampton?
On average you can expect to pay £132 for a flight from Belfast Intl Airport to Southampton. The cheapest flight overall is £46 while the most popular route, (Belfast Intl - Southampton Eastleigh) is currently priced at £68.
Can I find deals for flights from Belfast Intl to Southampton that include hotel bookings?
Yes. In addition to deals on Belfast Intl to Southampton flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Belfast Intl to Southampton?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast Intl to Southampton.
Can I find deals for business class flights from Belfast Intl to Southampton?
Yes. Cheapflights offers flight deals from Belfast Intl to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Belfast Intl Airport to Southampton?
Currently, March is the cheapest month in which you can book a flight from Belfast Intl Airport to Southampton (average of £98). Flying from Belfast Intl Airport to Southampton in January is currently the most expensive (average of £208). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Browse through other flights departing from Belfast Intl. Flights are based on user searches made on Cheapflights and were last updated on 3 October 2026.
Explore flights to Southampton departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 3 October 2026.
Top 2 airlines flying from Belfast Intl to Southampton
Discover the top 2 airlines that operate flights from Belfast Intl to Southampton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated 3 October 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Belfast Intl to Southampton?
When you search for this flight from Belfast Intl to Southampton, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to Southampton?
Cheapflights simply makes it quick and affordable to book flights from Belfast Intl to Southampton by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Belfast Intl to Southampton with no change fees?
Certainly. Search results for flights to Southampton from Belfast Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Belfast Intl to Southampton become cheaper?
Of course! You can now track prices for flights from Belfast Intl to Southampton and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
We value your privacy
Cheapflights and its partners wish to use cookies or similar technologies to store and/or access information on and about your device and process personal data such as your IP address, device identifiers etc., in order to improve your experience on the site, to analyse navigation, to offer and measure personalised advertising, and to facilitate sharing on social networks. We also allow the use of third-party cookies (including those from our advertising partners) on our sites.
By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review your choices and withdraw your consent at any time by clicking the ’Privacy Preferences’ link in the page side navigation.