Find flights
When to book
Airlines
FAQs

Cheap flights from Belfast to Portsmouth from £54

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — LHR
13 Apr — 20 Apr1
1 adult

Cheapflights Tip: The best prices from Belfast to Portsmouth are usually found in March or January, booked 46 days in advance, depart on a Monday or Friday and return on a Tuesday

Cheap flight deals from Belfast to Portsmouth

Keep the following information in mind while searching for Belfast to Portsmouth flight deals. Data was last updated 8 April 2025.

Round-trip from

£54

Popular in

June

Cheapest in

March

Average price

£92
easyJet
  • easyJet
  • 18/5-19/5
  • Nonstop
  • 2h 35m total
  • Belfast to Portsmouth
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£29 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Belfast to Portsmouth

Cheapest flights from Belfast to Portsmouth
Explore the most affordable flight options available from Belfast to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 April 2025.

Sun 18/510:10BFS - SOU
Nonstop1h 15measyJet
Mon 19/511:50SOU - BFS
Nonstop1h 20measyJet
Deal found 7/4£54
Tue 29/406:40BHD - SOU
Nonstop1h 45mAer Lingus
Tue 27/516:45SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 7/4£78
Tue 29/418:45BHD - SOU
1 stop13h 45mMultiple Airlines
Tue 27/516:45SOU - BHD
Nonstop1h 35mMultiple Airlines
Deal found 7/4£128
Sun 18/506:20BFS - SOU
2 stops26h 50mMultiple Airlines
Mon 19/511:50SOU - BFS
Nonstop1h 20mMultiple Airlines
Deal found 7/4£134
Wed 9/712:10BHD - SOU
1 stop22h 45measyJet
Sat 12/708:25SOU - BHD
1 stop7h 25measyJet
Deal found 8/4£155
Sat 10/514:40BHD - SOU
Nonstop1h 35mBritish Airways
Sun 11/508:55SOU - BHD
Nonstop1h 35mBritish Airways
Deal found 7/4£227
Sat 13/906:30BHD - SOU
1 stop10h 30mKLM
Sat 27/909:20SOU - BHD
1 stop11h 55mKLM
Deal found 7/4£333

Cheapflights Fare Finder

Customise your flight search to find flights from Belfast to Portsmouth 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 8 April 2025.
Use the filters below to find and compare flights from Belfast to Portsmouth that are best for you.

Fly from

Belfast

Fly to

Portsmouth

Route

Depart

Return

Price

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sun 18/5

10:10-11:25

Nonstop1h 15m

Southampton Eastleigh

Mon 19/5

11:50-13:10

Nonstop1h 20m

£54

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 29/4

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Tue 27/5

16:45-18:20

Nonstop1h 35m

£78

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 29/4

18:45-08:30

1 stop13h 45m

Southampton Eastleigh

Tue 27/5

16:45-18:20

Nonstop1h 35m

£128

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sun 18/5

06:20-09:10

2 stops26h 50m

Southampton Eastleigh

Mon 19/5

11:50-13:10

Nonstop1h 20m

£134

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 9/7

12:10-10:55

1 stop22h 45m

Southampton Eastleigh

Sat 12/7

08:25-15:50

1 stop7h 25m

£155

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 10/5

14:40-16:15

Nonstop1h 35m

Southampton Eastleigh

Sun 11/5

08:55-10:30

Nonstop1h 35m

£227

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 13/9

06:30-17:00

1 stop10h 30m

Southampton Eastleigh

Sat 27/9

09:20-21:15

1 stop11h 55m

£333

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 9/8

06:40-08:25

Nonstop1h 45m

£55

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sun 13/4

10:10-11:25

Nonstop1h 15m

£65

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 9/9

10:40-08:30

1 stop21h 50m

£73

Flights are sorted by cheapest return flights first.

Deals found on 7/4

Showing 1-10 of 13 results
1
2

Best time to book a flight from Belfast to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Belfast 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.

Cheapflights Insights

Everything you need to know about your flight from Belfast to Portsmouth

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

Use this chart to determine the optimal time to book a return flight from Belfast to Portsmouth. Price data was last updated on 4 April 2025.

The price you pay for your flight from Belfast to Portsmouth may vary depending on when you book. For the best chance of a lower fare, look to book 46 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Belfast to Portsmouth (average of £112). Flying from Belfast to Portsmouth in August is currently the most expensive (average of £164). 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 P0R?

Find hourly flight availability from Belfast to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 April 2025.

When flying from Belfast to Portsmouth, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Belfast to Portsmouth?

Use this chart to determine the cheapest time to fly return from Belfast to Portsmouth. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their Belfast to Portsmouth flight should consider departing on Monday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Portsmouth by month

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

In terms of precipitation, rainfall in Portsmouth ranges from 25.0 - 76.0 inches per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Portsmouth when rainfall is around 25.0 mm.

Temperature in Portsmouth by month

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

If weather is an important factor for your trip to Portsmouth, 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 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Portsmouth

Get insights into the airlines that provide service to Portsmouth. 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 Portsmouth. Reviews last updated 8 April 2025.
KLM
7.8
Good
1,321 reviews
Check prices

Comfort

7.7

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,321 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Comfort

7.7

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Aer Lingus
7.0
Good
1,060 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Comfort

7.7

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
easyJet
6.9
Okay
1,795 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Comfort

7.7

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
British Airways
6.6
Okay
6,722 reviews
KLM
7.8
Good
1,321 reviews
Check prices

Comfort

7.7

Food

7.3

Overall

7.8

Crew

8.4

Entertainment

7.1

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

Find useful and relevant information for your journey from Belfast to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    £55 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on easyJet and British Airways, with prices starting from £65 and £120, respectively.

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

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

  • How can I find direct flights from Belfast to Portsmouth?

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

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

    Yes. Cheapflights offers flight deals from Belfast to Portsmouth 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 to Portsmouth?

    Currently, January is the cheapest month in which you can book a flight from Belfast to Portsmouth (average of £112). Flying from Belfast to Portsmouth in August is currently the most expensive (average of £164). 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

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

Alternative routes for Belfast to Portsmouth

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to Gatwick flights
Belfast Intl to Luton flights
Belfast Intl to Stansted flights
Belfast City to Heathrow flights
Belfast Intl to London City flights
Belfast City to London City flights
Belfast City to Gatwick flights
Belfast Intl to Heathrow flights
Belfast City to Luton flights
Belfast Intl to Manchester flights
Belfast City to Stansted flights
Belfast Intl to Edinburgh flights
Belfast City to Manchester flights
Belfast Intl to Newcastle upon Tyne flights
Belfast Intl to Birmingham flights
Belfast Intl to Leeds flights
Belfast Intl to Liverpool flights
Belfast City to Edinburgh flights
Belfast Intl to Bristol flights
Belfast City to Birmingham flights
Belfast Intl to Southampton flights
Belfast City to Newcastle upon Tyne flights
Belfast City to Leeds flights
Belfast Intl to Exeter flights
Belfast City to Liverpool flights
Derry to Heathrow flights
Belfast City to Southampton flights
Belfast City to Exeter flights
Belfast Intl to Southend flights
Belfast Intl to East Midlands flights
Derry to Stansted flights
Belfast City to Southend flights
Belfast City to Bristol flights
Belfast City to East Midlands flights
Derry to Liverpool flights
Belfast City to Doncaster flights
Belfast Intl to Doncaster flights

Top 6 airlines flying from Belfast to Portsmouth

Discover the top 6 airlines that operate flights from Belfast to Portsmouth. 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 8 April 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£25Average£48FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£27Average£48FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£31Average£87FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£61Average£124FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£75Average£150FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£135Average£217FlexibilityNo cancel feeOn-time79%
Search Loganair 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 Belfast to Portsmouth?

Deals for Belfast to Portsmouth flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast to Portsmouth for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Portsmouth from Belfast 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 to Portsmouth become cheaper?

Yes, Cheapflights offers price alerts on Belfast to Portsmouth 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.

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.
Site
©2025 Cheapflights