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Cheap flights from Southampton to Belfast from £45

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — BHD
5 Feb — 12 Feb1
1 adult

The best prices from Southampton Eastleigh to Belfast are usually found in September or January, booked 88 days in advance, depart on a Tuesday or Friday and return on a Monday

Cheap flight deals from Southampton to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Southampton (SOU) to Belfast (BF1). 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 31 January 2025.

Round-trip from

£69

One-way from

£45

Popular in

December

Cheapest in

September

Average price

£76
easyJet
  • easyJet
  • 29/5-1/6
  • Nonstop
  • 2h 35m total
  • Southampton to Belfast
Search Deals
Aer Lingus
  • Aer Lingus
  • 9/2
  • Nonstop
  • 1h 40m total
  • Southampton to Belfast
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£8 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from Southampton to Belfast

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 31 January 2025.

Thu 29/515:05SOU - BFS
Nonstop1h 20measyJet
Sun 1/610:10BFS - SOU
Nonstop1h 15measyJet
Deal found 30/1£69
Wed 5/319:25SOU - BHD
Nonstop1h 35mAer Lingus
Wed 19/317:20BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 30/1£75
Thu 6/212:30SOU - BFS
1 stop19h 20mMultiple Airlines
Fri 7/211:45BFS - SOU
Nonstop1h 10mMultiple Airlines
Deal found 30/1£127
Tue 25/208:55SOU - BHD
Nonstop1h 40mMultiple Airlines
Thu 27/207:10BHD - SOU
1 stop10h 10mMultiple Airlines
Deal found 30/1£150
Wed 5/317:20SOU - BHD
1 stop23h 30mKLM
Wed 19/306:30BHD - SOU
1 stop26h 00mKLM
Deal found 30/1£182
Sun 16/209:35SOU - BHD
Nonstop1h 40mBritish Airways
Sat 22/206:40BHD - SOU
Nonstop1h 45mBritish Airways
Deal found 30/1£267

Find flights from Southampton to Belfast within your budget

Customise your flight search to find flights from Southampton to Belfast 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 858,174 searches. Data last updated 31 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Thu 29/5

15:05-16:25

Nonstop1h 20m

Belfast Intl

Sun 1/6

10:10-11:25

Nonstop1h 15m

£69

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Wed 5/3

19:25-21:00

Nonstop1h 35m

Belfast City

Wed 19/3

17:20-18:55

Nonstop1h 35m

£75

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Tue 25/2

08:55-10:35

Nonstop1h 40m

Belfast City

Thu 27/2

07:10-17:20

1 stop10h 10m

£150

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Wed 5/3

17:20-16:50

1 stop23h 30m

Belfast City

Wed 19/3

06:30-08:30

1 stop26h 00m

£182

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Wed 5/3

13:00-16:40

1 stop3h 40m

Belfast Intl

Wed 19/3

08:20-12:30

1 stop4h 10m

£198

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sun 16/2

09:35-11:15

Nonstop1h 40m

Belfast City

Sat 22/2

06:40-08:25

Nonstop1h 45m

£267

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sun 9/2

09:35-11:15

Nonstop1h 40m

£45

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Sun 6/4

12:00-13:20

Nonstop1h 20m

£47

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Wed 5/2

09:20-13:10

1 stop3h 50m

£116

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sat 5/4

12:25-14:10

Nonstop1h 45m

£120

Flights are sorted by cheapest return flights first.

Deals found on 29/1

Showing 1-10 of 11 results
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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.
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.

Travel insights for flights from Southampton to Belfast

Get recent, data-driven insights about flights from Southampton to Belfast including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Southampton to Belfast. Price data was last updated on 24 January 2025.

Booking 88 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.

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

Currently, January is the cheapest month in which you can book a flight from Southampton to Belfast (average of £67). Flying from Southampton to Belfast in July is currently the most expensive (average of £90). 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?

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 31 January 2025.

One of the essential ways to save on airfare from Southampton to Belfast is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 28% on airfare.

Rainfall in Belfast by month

Plan your trip to Belfast by taking into account the average rainfall totals by month.

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.

Temperature in Belfast by month

Plan your trip to Belfast by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated 31 January 2025.
KLM
7.8
Good
1,335 reviews
Check prices

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.7

Entertainment

7.2

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,335 reviews
KLM
7.8
Good
1,335 reviews
Check prices

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.7

Entertainment

7.2

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Aer Lingus
7.1
Good
1,077 reviews
KLM
7.8
Good
1,335 reviews
Check prices

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.7

Entertainment

7.2

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

easyJet
6.9
Okay
1,849 reviews
KLM
7.8
Good
1,335 reviews
Check prices

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.7

Entertainment

7.2

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

British Airways
6.6
Okay
6,793 reviews
KLM
7.8
Good
1,335 reviews
Check prices

Overall

7.8

Boarding

7.8

Food

7.3

Comfort

7.7

Entertainment

7.2

Crew

8.4

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from Southampton to Belfast. 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 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.

  • 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 £69 on this airline. Additional options worth looking into are Aer Lingus and KLM, starting at £75 and £182 round-trip. You may be able to fly from Southampton to Belfast for 20% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Southampton to Belfast one-way?

    One-way options have recently been found by users for as low as £45 on Aer Lingus. Other airlines that offer cheap prices include easyJet from £47 and British Airways from £120 one-way.

  • What are the cheapest flights from Southampton to Belfast?

    Looking at all options, your cheapest flight can be booked for £27. While the most popular route (Southampton Eastleigh - Belfast Intl) can be booked for £32 on average our data indicates £58 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, January is the cheapest month in which you can book a flight from Southampton to Belfast (average of £67). Flying from Southampton to Belfast in July is currently the most expensive (average of £90). 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

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Alternative routes for Southampton to Belfast

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Southampton to Belfast

Discover the top 2 airlines that operate flights from Southampton to Belfast. 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 858,174 searches. Data last updated 31 January 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£36Average£74FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£58Average£102FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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 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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