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Cheap flights from Belfast City Airport to Portsmouth from £48

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 30/7. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — LHR
22 Jul — 29 Jul1
1 adult

Cheapflights Tip: The best prices from Belfast City to Portsmouth are usually found in March or February, booked 38 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap flight deals from Belfast City to Portsmouth

Keep the following information in mind while searching for Belfast City to Portsmouth flight deals. Data was last updated 17 July 2025.

Round-trip from

£84

One-way from

£48

Popular in

July

Cheapest in

March

Average price

£149
Aer Lingus
  • Aer Lingus
  • 28/8-31/8
  • Nonstop
  • 3h 20m total
  • Belfast to Portsmouth
Search Deals
Aer Lingus
  • Aer Lingus
  • 30/7
  • Nonstop
  • 1h 45m total
  • Belfast to Portsmouth
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£21 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Belfast City to Portsmouth

Cheapest flights from Belfast City to Portsmouth
Explore the most affordable flight options available from Belfast City to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 July 2025.

Thu 28/806:40BHD - SOU
Nonstop1h 45mAer Lingus
Sun 31/808:55SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 15/7£84
Thu 28/806:40BHD - SOU
Nonstop1h 45mMultiple Airlines
Sun 31/821:30SOU - BHD
1 stop9h 55mMultiple Airlines
Deal found 15/7£111
Thu 28/817:10BHD - SOU
1 stop22h 45measyJet
Sun 31/821:30SOU - BHD
1 stop9h 55measyJet
Deal found 15/7£155
Sat 9/810:10BHD - SOU
Nonstop1h 45mBritish Airways
Sun 10/808:55SOU - BHD
Nonstop1h 35mBritish Airways
Deal found 16/7£225
Sat 9/806:30BHD - SOU
1 stop10h 30mKLM
Sat 16/809:20SOU - BHD
1 stop7h 35mKLM
Deal found 16/7£394

Cheapflights Fare Finder

Customise your flight search to find flights from Belfast City 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 17 July 2025.
Use the filters below to find and compare flights from Belfast City Airport to Portsmouth that are best for you.

Fly from

Belfast City

Fly to

Portsmouth

Route

Depart

Return

Price

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 28/8

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sun 31/8

08:55-10:30

Nonstop1h 35m

£84

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 28/8

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sun 31/8

21:30-07:25

1 stop9h 55m

£111

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 28/8

17:10-15:55

1 stop22h 45m

Southampton Eastleigh

Sun 31/8

21:30-07:25

1 stop9h 55m

£155

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 9/8

10:10-11:55

Nonstop1h 45m

Southampton Eastleigh

Sun 10/8

08:55-10:30

Nonstop1h 35m

£225

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 9/8

06:30-17:00

1 stop10h 30m

Southampton Eastleigh

Sat 16/8

09:20-16:55

1 stop7h 35m

£394

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 30/7

06:40-08:25

Nonstop1h 45m

£48

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 26/8

10:40-10:20

1 stop23h 40m

£113

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 26/7

06:40-08:25

Nonstop1h 45m

£136

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 30/7

15:25-08:40

2 stops17h 15m

£143

Flights are sorted by cheapest return flights first.

Deals found on 16/7

Best time to book a flight from Belfast City to Portsmouth

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

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

Use this chart to determine the optimal time to book a return flight from Belfast City to Portsmouth. Price data was last updated on 11 July 2025.

To ensure you get the cheapest price possible for a flight from Belfast City Airport to Portsmouth, you should look to book at least 38 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 City Airport to Portsmouth?

Currently, January is the cheapest month in which you can book a flight from Belfast City Airport to Portsmouth (average of £112). Flying from Belfast City Airport 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 BHD to P0R?

Find hourly flight availability from Belfast City 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 17 July 2025.

When flying from Belfast City Airport 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 City Airport to Portsmouth?

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

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

Weekly flight availability from Belfast City Airport to Portsmouth

Explore weekly flight availability from Belfast City to Portsmouth. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 17 July 2025.

The most flights from BHD to P0R are scheduled on a Wednesday (45 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost for a return flight from Belfast City Airport to Portsmouth?

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 17 July 2025.
Read through reviews of airlines operating flights from Belfast City Airport to Portsmouth, such as KLM, Aer Lingus, andeasyJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,373 reviews
Check prices

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,373 reviews
KLM
7.8
Good
1,373 reviews
Check prices

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Aer Lingus
7.1
Good
1,168 reviews
KLM
7.8
Good
1,373 reviews
Check prices

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
easyJet
6.9
Okay
1,819 reviews
KLM
7.8
Good
1,373 reviews
Check prices

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
British Airways
6.6
Okay
7,145 reviews
KLM
7.8
Good
1,373 reviews
Check prices

Boarding

7.8

Crew

8.4

Food

7.3

Comfort

7.7

Overall

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Belfast City 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 City Airport to Portsmouth one-way?

    To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at £48. easyJet flights start at £113 while deals on British Airways start at £136 one-way.

  • What are the most reliable airlines from Belfast City Airport to Portsmouth?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Belfast City Airport to Portsmouth on time: Japan Airlines (85%), British Airways (85%), American Airlines (84%).

  • What are the cheapest flights from Belfast City Airport to Portsmouth?

    Looking at all options, your cheapest flight can be booked for £57. While the most popular route (Belfast City - Southampton Eastleigh) can be booked for £84 on average our data indicates £2,853 when flying from Belfast City Airport to Portsmouth.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Belfast City Airport to Portsmouth (average of £112). Flying from Belfast City Airport 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

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Top 3 airlines flying from Belfast City to Portsmouth

Discover the top 3 airlines that operate flights from Belfast City 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 17 July 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£31Average£89FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£62Average£199FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£77Average£145FlexibilityNo cancel feeOn-time70%
Search British Airways 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 City to Portsmouth?

Cheapflights makes it easy to find Belfast City to Portsmouth 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 Belfast City to Portsmouth?

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

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

Yes! Cheapflights helps users easily find flights from Belfast City to Portsmouth with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Portsmouth from Belfast City today and book when prices fit your budget.

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