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Cheap flights from Southampton to Belfast from £18

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — BHD
26 Jan — 2 Feb1
1 adult

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

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 21 January 2025.

Round-trip from

£71

One-way from

£18

Popular in

December

Cheapest in

January

Average price

£75
Aer Lingus
  • Aer Lingus
  • 10/3-11/3
  • Nonstop
  • 3h 25m total
  • Southampton to Belfast
easyJet
  • easyJet
  • 12/3
  • Nonstop
  • 1h 20m total
  • Southampton to Belfast
Highest demand for flights based on searches. 10% potential increase in price (£8 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Average for round-trip flights in January 2025

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 21 January 2025.

Thu 24/720:40SOU - BFS
Nonstop1h 20measyJet
Mon 28/710:35BFS - SOU
Nonstop1h 15measyJet
Deal found 21/1£66
Mon 10/309:35SOU - BHD
Nonstop1h 40mAer Lingus
Tue 11/306:40BHD - SOU
Nonstop1h 45mAer Lingus
Deal found 20/1£71
Sat 8/309:40SOU - BHD
1 stop9h 55mMultiple Airlines
Tue 11/317:20BHD - SOU
Nonstop1h 35mMultiple Airlines
Deal found 21/1£128
Wed 19/316:10SOU - BFS
Nonstop1h 20mMultiple Airlines
Fri 21/311:15BFS - SOU
2 stops8h 25mMultiple Airlines
Deal found 20/1£135
Wed 12/317:20SOU - BHD
1 stop3h 40mKLM
Wed 19/306:30BHD - SOU
1 stop26h 00mKLM
Deal found 20/1£181
Thu 21/811:25SOU - BHD
1 stop5h 15measyJet
Thu 28/817:10BHD - SOU
1 stop22h 45measyJet
Deal found 20/1£193
Tue 21/108:55SOU - BHD
Nonstop1h 40mBritish Airways
Wed 22/106:40BHD - SOU
Nonstop1h 45mBritish Airways
Deal found 20/1£224

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 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Mon 10/3

09:35-11:15

Nonstop1h 40m

Belfast City

Tue 11/3

06:40-08:25

Nonstop1h 45m

£71

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

£74

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sat 8/3

09:40-19:35

1 stop9h 55m

Belfast City

Tue 11/3

17:20-18:55

Nonstop1h 35m

£128

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Wed 19/3

16:10-17:30

Nonstop1h 20m

Belfast Intl

Fri 21/3

11:15-19:40

2 stops8h 25m

£135

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Wed 12/3

17:20-21:00

1 stop3h 40m

Belfast City

Wed 19/3

06:30-08:30

1 stop26h 00m

£181

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sun 16/3

19:25-21:00

Nonstop1h 35m

Belfast City

Sun 30/3

06:40-08:25

Nonstop1h 45m

£225

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Fri 18/7

16:25-11:45

1 stop19h 20m

Belfast City

Sun 20/7

18:05-10:35

1 stop16h 30m

£285

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Wed 12/3

16:10-17:30

Nonstop1h 20m

£18

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Tue 28/1

19:25-21:00

Nonstop1h 35m

£98

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Sun 30/3

08:25-20:25

2 stops12h 00m

£103

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 12 results
1
2

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 17 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 21 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 at midday 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 21 January 2025.
Read through reviews of airlines operating flights from Southampton to Belfast, such as easyJet, British Airways and KLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
7.8
Good
1,341 reviews

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Entertainment

7.2

Boarding

7.8

Reviews

1 / 10

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.

7.8
Good
1,341 reviews
7.8
Good
1,341 reviews

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Entertainment

7.2

Boarding

7.8

Reviews

1 / 10

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.

7.1
Good
1,082 reviews
7.8
Good
1,341 reviews

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Entertainment

7.2

Boarding

7.8

Reviews

1 / 10

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.

6.9
Okay
1,859 reviews
7.8
Good
1,341 reviews

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Entertainment

7.2

Boarding

7.8

Reviews

1 / 10

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.

6.6
Okay
6,834 reviews
7.8
Good
1,341 reviews

Overall

7.8

Comfort

7.7

Crew

8.4

Food

7.3

Entertainment

7.2

Boarding

7.8

Reviews

1 / 10

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 Aer Lingus. Our recent data shows that you can find tickets from as low as £71 on this airline. Additional options worth looking into are easyJet and KLM, starting at £74 and £181 round-trip. You may be able to fly from Southampton to Belfast for 19% 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 £18 on easyJet. Other airlines that offer cheap prices include British Airways from £98 and Aer Lingus from £114 one-way.

  • What are the cheapest flights from Southampton to Belfast?

    Looking at all options, your cheapest flight can be booked for £28. While the most popular route (Southampton Eastleigh - Belfast Intl) can be booked for £36 on average our data indicates £66 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

Browse thousands of different options on Cheapflights for your next trip

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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.

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 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£35Average£75FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£59Average£105FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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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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