How long is the flight from Southampton to Belfast?

There are many flights that can get you from Southampton to Belfast in 1h 20m. Fly via easyJet, Aer Lingus, or KLM to get the fastest option. Airlines will cover a distance of 326 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from Southampton to Belfast round-trip?

Our cheapest airline available from Southampton to Belfast is easyJet. Our recent data shows that you can find tickets from as low as £46 on this airline. An additional option worth looking into is Aer Lingus, starting at £81. You may be able to fly from Southampton to Belfast for 61% less than the average price by searching for these airlines.

In terms of precipitation, rainfall in Belfast ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast when rainfall is around 50.0 mm.

If weather is an important factor for your trip to Belfast, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

What are the cheapest flights from Southampton to Belfast?

Looking at all options, your cheapest flight can be booked for £52. While the most popular route (Southampton Eastleigh - Belfast Intl) can be booked for £72 on average, our data indicates £84 when flying from Southampton to Belfast.

What airport do you fly from for flights from Southampton to Belfast?

For a flight from Southampton to Belfast, you will be flying from Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city. Eastleigh is the only Southampton airport and it handles 0 outbound flights to Belfast per day. 2 airlines have flights to Belfast from Southampton Eastleigh on a regular basis.

Can I find deals for flights from Southampton to Belfast that include hotel bookings?

Yes. In addition to deals on Southampton to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Southampton to Belfast?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Belfast.

Can I find deals for business class flights from Southampton to Belfast?

Yes. Cheapflights offers flight deals from Southampton to Belfast by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£23+ Cheap Flights from Southampton to Belfast

Cheapflights Tip: The best prices from Southampton Eastleigh to Belfast are usually found in September or May, booked 59 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Southampton to Belfast

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Southampton to Belfast
Explore the most affordable flight options available from Southampton to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Thu 10/1216:10 -

Nonstop1h 35m

Mon 14/1214:05 -

Nonstop1h 35m

Deal found 29/10£72

Thu 10/1216:10 -

Nonstop1h 35m

Sun 13/1210:25 -

Nonstop1h 40m

Deal found 28/10£73

Tue 24/1119:40 -

Nonstop1h 35m

Tue 1/1210:25 -

Nonstop1h 40m

Deal found 27/10£77

Thu 3/1216:10 -

Nonstop1h 35m

Mon 7/1210:25 -

Nonstop1h 40m

Deal found 27/10£78

Tue 24/1112:15 -

1 stop4h 00m

Tue 1/1221:05 -

1 stop11h 40m

Deal found 27/10£97

Thu 10/1216:10 -

Nonstop1h 35m

Mon 14/1208:00 -

1 stop6h 55m

Deal found 29/10£99

Tue 1/1212:35 -

Nonstop1h 35m

Thu 3/1214:05 -

Nonstop1h 35m

Deal found 25/10£100

Wed 25/1109:15 -

1 stop24h 10m

Wed 2/1218:55 -

1 stop13h 45m

Deal found 25/10£103

Thu 3/1216:10 -

Nonstop1h 35m

Sun 6/1210:25 -

Nonstop1h 40m

Deal found 25/10£103

Thu 10/1213:55 -

1 stop4h 10m

Mon 14/1208:40 -

1 stop6h 15m

Deal found 27/10£106

Wed 11/1108:50 -

Nonstop1h 35m

Thu 12/1110:25 -

Nonstop1h 40m

Deal found 26/10£106

Tue 17/1119:40 -

Nonstop1h 35m

Thu 19/1110:25 -

Nonstop1h 40m

Deal found 26/10£107

Best flights from Southampton to Belfast
Discover carefully curated flight deals from Southampton to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Fri 26/218:35 -

Nonstop1h 20m

Mon 1/309:15 -

Nonstop1h 20m

Deal found 27/10£58

Fri 12/219:15 -

Nonstop1h 35m

Sun 14/210:25 -

Nonstop1h 40m

Deal found 25/10£95

Thu 10/1217:10 -

1 stop13h 45m

Sun 13/1220:40 -

2 stops15h 15m

Deal found 28/10£173

Thu 10/1208:40 -

1 stop8h 05m

Sun 13/1209:40 -

1 stop22h 30m

Deal found 28/10£175

Fri 26/218:35 -

Nonstop1h 20m

Wed 3/318:55 -

1 stop13h 45m

Deal found 27/10£103

Fri 2/408:55 -

Nonstop1h 40m

Mon 5/406:40 -

Nonstop1h 45m

Deal found 25/10£106

Wed 25/1109:15 -

1 stop24h 10m

Wed 2/1218:55 -

1 stop13h 45m

Deal found 25/10£103

Thu 26/1112:35 -

Nonstop1h 35m

Thu 3/1210:25 -

Nonstop1h 40m

Deal found 29/10£233

Thu 10/1213:55 -

1 stop4h 10m

Mon 14/1208:40 -

1 stop6h 15m

Deal found 27/10£106

Fri 5/213:25 -

1 stop5h 20m

Mon 15/211:50 -

1 stop3h 05m

Deal found 25/10£134

Thu 3/1213:55 -

1 stop8h 25m

Sun 6/1211:15 -

1 stop4h 20m

Deal found 25/10£142

Thu 25/312:35 -

Nonstop1h 35m

Sun 28/310:25 -

Nonstop1h 40m

Deal found 28/10£233

Tue 24/1108:50 -

Nonstop1h 35m

Tue 1/1217:35 -

Nonstop1h 35m

Deal found 27/10£234

Sat 13/208:20 -

1 stop13h 35m

Sun 14/211:15 -

1 stop4h 20m

Deal found 26/10£160

Thu 3/1216:10 -

Nonstop1h 35m

Sun 6/1214:05 -

Nonstop1h 35m

Deal found 26/10£235

Fri 12/212:25 -

2 stops8h 35m

Sun 14/208:20 -

2 stops11h 10m

Deal found 25/10£346

Sat 14/1108:50 -

Nonstop1h 35m

Sun 15/1110:25 -

Nonstop1h 40m

Deal found 29/10£310

Thu 26/1109:00 -

1 stop4h 15m

Thu 10/1210:25 -

Nonstop1h 40m

Deal found 29/10£363

Fri 2/408:55 -

Nonstop1h 40m

Mon 5/406:30 -

2 stops25h 55m

Deal found 28/10£379

Find flight deals from Southampton to Belfast

Round-trip from	£46
One-way from	£23
Popular in	December
Cheapest in	September
Average price	£112

easyJet
5/2-15/2
Nonstop
2h 40m total
Southampton to Belfast

Search Deals

easyJet
5/2-31/12
Nonstop
1h 20m total
Southampton to Belfast

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (£15 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£4 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Southampton to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

SouthamptonBelfast

SOU Southampton Eastleigh - BHD Belfast City

SOUBHD

Southampton Eastleigh

Mon 30/11

19:40-21:15

Nonstop1h 35m

Belfast City

Wed 31/12

00:00-00:00

Nonstop0h 00m

£37

SouthamptonBelfast

SOU Southampton Eastleigh - BHD Belfast City

SOUBHD

Southampton Eastleigh

Thu 4/2

19:15-20:50

Nonstop1h 35m

Belfast City

Wed 31/12

00:00-00:00

Nonstop0h 00m

£37

SouthamptonBelfast

SOU Southampton Eastleigh - BHD Belfast City

SOUBHD

Southampton Eastleigh

Wed 3/2

12:35-14:10

Nonstop1h 35m

Belfast City

Wed 31/12

00:00-00:00

Nonstop0h 00m

£37

SouthamptonBelfast

SOU Southampton Eastleigh - BHD Belfast City

SOUBHD

Southampton Eastleigh

Fri 5/2

19:15-20:50

Nonstop1h 35m

Belfast City

Wed 31/12

00:00-00:00

Nonstop0h 00m

£43

SouthamptonBelfast

SOU Southampton Eastleigh - BFS Belfast Intl

SOUBFS

Southampton Eastleigh

Tue 24/11

12:15-16:15

1 stop4h 00m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£53

SouthamptonBelfast

SOU Southampton Eastleigh - BFS Belfast Intl

SOUBFS

Southampton Eastleigh

Fri 26/2

18:35-19:55

Nonstop1h 20m

Belfast Intl

Mon 1/3

09:15-10:35

Nonstop1h 20m

£58

SouthamptonBelfast

SOU Southampton Eastleigh - BHD Belfast City

SOUBHD

Southampton Eastleigh

Fri 5/2

12:35-08:55

1 stop20h 20m

Belfast City

Wed 31/12

00:00-00:00

Nonstop0h 00m

£63

SouthamptonBelfast

SOU Southampton Eastleigh - BFS Belfast Intl

SOUBFS

Southampton Eastleigh

Fri 5/2

12:35-18:45

1 stop6h 10m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£64

SouthamptonBelfast

SOU Southampton Eastleigh - BFS Belfast Intl

SOUBFS

Southampton Eastleigh

Mon 23/11

17:55-16:15

1 stop22h 20m

Belfast Intl

Wed 31/12

00:00-00:00

Nonstop0h 00m

£64

SouthamptonBelfast

SOU Southampton Eastleigh - BHD Belfast City

SOUBHD

Southampton Eastleigh

Sat 6/2

08:20-17:45

1 stop9h 25m

Belfast City

Wed 31/12

00:00-00:00

Nonstop0h 00m

£75

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 41 resultsSorted by cheapest first

...

Best time to book a flight from Southampton to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Southampton with our price prediction graph.

SOU-BF1

SOU-BHD

SOU-BFS

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 Southampton to Belfast

SOU-BF1

SOU-BHD

SOU-BFS

What is the cheapest month to book a flight from Southampton to Belfast?

Currently, September is the cheapest month in which you can book a flight from Southampton to Belfast (average of £88). Flying from Southampton to Belfast in December is currently the most expensive (average of £162). 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 SOU to BFS?

One of the essential ways to save on airfare from Southampton to Belfast is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the afternoon could potentially save you up to 43% on airfare.

How much does it cost for a return flight from Southampton to Belfast?

Airfare is below average for this route at the moment.

Southampton to Belfast flights typically cost between £101 and £198 in February.
The cheapest return price found within the last 5 days was £46 on easyJet (5 Feb–15 Feb).

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

Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from Southampton to Belfast. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Belfast

Read reviews from past customers who have flown with Aer Lingus and easyJet from Southampton to Belfast. 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.

Aer Lingus

7.3

Good

1,868 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Griffith,Feb 2026

MAN - DUB

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.

Aer Lingus

7.3

Good

1,868 reviews

Aer Lingus

7.3

Good

1,868 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Griffith,Feb 2026

MAN - DUB

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.

easyJet

6.9

Okay

1,922 reviews

Aer Lingus

7.3

Good

1,868 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Griffith,Feb 2026

MAN - DUB

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

What airport do you fly from for flights from Southampton to Belfast?
For a flight from Southampton to Belfast, you will be flying from Eastleigh. Southampton Eastleigh (SOU) is just 3.5 mi from the center of the city. Eastleigh is the only Southampton airport and it handles 0 outbound flights to Belfast per day. 2 airlines have flights to Belfast from Southampton Eastleigh on a regular basis.
How long is the flight from Southampton to Belfast?
There are many flights that can get you from Southampton to Belfast in 1h 20m. Fly via easyJet, Aer Lingus, or KLM to get the fastest option. Airlines will cover a distance of 326 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Southampton to Belfast round-trip?
Our cheapest airline available from Southampton to Belfast is easyJet. Our recent data shows that you can find tickets from as low as £46 on this airline. An additional option worth looking into is Aer Lingus, starting at £81. You may be able to fly from Southampton to Belfast for 61% less than the average price by searching for these airlines.
What are the cheapest flights from Southampton to Belfast?
Looking at all options, your cheapest flight can be booked for £52. While the most popular route (Southampton Eastleigh - Belfast Intl) can be booked for £72 on average, our data indicates £84 when flying from Southampton to Belfast.
Can I find deals for flights from Southampton to Belfast that include hotel bookings?
Yes. In addition to deals on Southampton to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southampton to Belfast?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Belfast.
Can I find deals for business class flights from Southampton to Belfast?
Yes. Cheapflights offers flight deals from Southampton to Belfast 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 Southampton to Belfast?
Currently, September is the cheapest month in which you can book a flight from Southampton to Belfast (average of £88). Flying from Southampton to Belfast in December is currently the most expensive (average of £162). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Stansted to Campbeltown flights

Top 2 airlines flying from Southampton to Belfast

Airline	Cheapest	Average	Flexibility	On-time
easyJet	Cheapest£46	Average£83	FlexibilityNo cancel fee	On-time86%	Search easyJet flights
Aer Lingus	Cheapest£81	Average£131	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

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How does Cheapflights help users find flights from Southampton to Belfast?

Cheapflights makes it easy to find Southampton to Belfast flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Southampton to Belfast?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast from Southampton.

Can Cheapflights find flights from Southampton to Belfast with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Southampton to Belfast, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Southampton to Belfast become cheaper?

Yes, Cheapflights offers price alerts on Southampton to Belfast flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Southampton to Belfast from £23

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southampton to Belfast

Cheapest flights from Southampton to BelfastExplore the most affordable flight options available from Southampton to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Explore the most affordable flight options available from Southampton to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Southampton to BelfastDiscover carefully curated flight deals from Southampton to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Discover carefully curated flight deals from Southampton to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Direct flights from Southampton to BelfastExplore direct flight options from Southampton to Belfast based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Explore direct flight options from Southampton to Belfast based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Last-minute flights from Southampton to BelfastDiscover last-minute flight deals from Southampton to Belfast. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Southampton to Belfast. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Southampton to BelfastSearch for one-way flight options from Southampton to Belfast. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from Southampton to Belfast. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Find flight deals from Southampton to Belfast

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Southampton to Belfast that are best for you.

Best time to book a flight from Southampton to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Southampton with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Southampton to Belfast?

What is the cheapest time of day to fly from SOU to BFS?

Find hourly flight availability from Southampton to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 October 2026.

One of the essential ways to save on airfare from Southampton to Belfast is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the afternoon could potentially save you up to 43% on airfare.

How much does it cost for a return flight from Southampton to Belfast?

Airfare is below average for this route at the moment.

Southampton to Belfast flights typically cost between £101 and £198 in February.The cheapest return price found within the last 5 days was £46 on easyJet (5 Feb–15 Feb).

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

Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from Southampton to Belfast. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Belfast

Read reviews from past customers who have flown with Aer Lingus and easyJet from Southampton to Belfast. 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.

Related info for your journey

What airport do you fly from for flights from Southampton to Belfast?

How long is the flight from Southampton to Belfast?

What are the cheapest airlines flying from Southampton to Belfast round-trip?

What are the cheapest flights from Southampton to Belfast?

Can I find deals for flights from Southampton to Belfast that include hotel bookings?

How can I find direct flights from Southampton to Belfast?

Can I find deals for business class flights from Southampton to Belfast?

What is the cheapest month to book a flight from Southampton to Belfast?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Southampton to Belfast

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Belfast by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Northern Ireland

Book a non-stop flight to one of these other cities located in Northern Ireland.

Search flights from Southampton to Belfast by cabin class

Find flights from Southampton to Belfast, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Southampton and Belfast flights

Browse other Southampton and Belfast flight options. Last updated on 30 October 2026.

Other flights from Southampton

Browse through other flights departing from Southampton. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.

Popular flight searches

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Top 2 airlines flying from Southampton to Belfast

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How does Cheapflights help users find flights from Southampton to Belfast?

Why should you use Cheapflights to find cheap flight tickets from Southampton to Belfast?

Can Cheapflights find flights from Southampton to Belfast with no change fees?

Can Cheapflights notify me if prices for flights from Southampton to Belfast become cheaper?

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Travel Smart

Cheapest flights from Southampton to Belfast
Explore the most affordable flight options available from Southampton to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Southampton to Belfast
Discover carefully curated flight deals from Southampton to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Direct flights from Southampton to Belfast
Explore direct flight options from Southampton to Belfast based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Last-minute flights from Southampton to Belfast
Discover last-minute flight deals from Southampton to Belfast. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Southampton to Belfast
Search for one-way flight options from Southampton to Belfast. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Southampton to Belfast flights typically cost between £101 and £198 in February.
The cheapest return price found within the last 5 days was £46 on easyJet (5 Feb–15 Feb).