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Cheap flights from Belfast City Airport to Portsmouth from £46

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — LHR
1 Apr — 8 Apr1
1 adult

Cheapflights Tip: The best prices from Belfast City to Portsmouth are usually found in February or January, booked 22 days in advance, depart on a Wednesday or Monday and return on a Sunday

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 27 March 2025.

Round-trip from

£139

One-way from

£46

Popular in

June

Cheapest in

February

Average price

£93
Aer Lingus
  • Aer Lingus
  • 17/4-20/4
  • Nonstop
  • 3h 20m total
  • Belfast to Portsmouth
Search Deals
Aer Lingus
  • Aer Lingus
  • 11/4
  • Nonstop
  • 1h 45m total
  • Belfast to Portsmouth
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£25 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 March 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 27 March 2025.

Fri 4/406:40BHD - SOU
Nonstop1h 45mAer Lingus
Sun 6/413:10SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 26/3£91
Sat 27/910:10BHD - SOU
Nonstop1h 45mMultiple Airlines
Wed 8/1009:00SOU - BHD
1 stop5h 35mMultiple Airlines
Deal found 26/3£170
Sat 27/917:25BHD - SOU
1 stop15h 20mKLM
Wed 8/1009:20SOU - BHD
1 stop11h 45mKLM
Deal found 26/3£275
Fri 4/415:00BHD - SOU
1 stop17h 25measyJet
Sun 6/416:35SOU - BHD
1 stop14h 50measyJet
Deal found 26/3£304
Mon 23/606:40BHD - SOU
Nonstop1h 45mBritish Airways
Mon 30/616:30SOU - BHD
1 stop4h 40mBritish Airways
Deal found 26/3£332

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 27 March 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 17/4

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sun 20/4

13:10-14:45

Nonstop1h 35m

£139

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 17/4

18:45-15:55

1 stop21h 10m

Southampton Eastleigh

Sun 20/4

16:45-18:20

Nonstop1h 35m

£252

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Mon 23/6

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Mon 30/6

16:30-21:10

1 stop4h 40m

£332

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 11/4

06:40-08:25

Nonstop1h 45m

£46

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 10/6

10:40-08:30

1 stop21h 50m

£52

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 10/6

18:00-08:05

2 stops14h 05m

£118

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 14/6

14:40-16:15

Nonstop1h 35m

£119

Flights are sorted by cheapest return flights first.

Deals found on 25/3

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 21 March 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 22 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 27 March 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 Tuesday afternoons when fares are most often at their lowest. Sunday afternoons 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 27 March 2025.
See what other customers who have flown with Aer Lingus, easyJet and British Airways from Belfast to Portsmouth have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.0
Good
1,062 reviews
Check prices

Comfort

7.0

Food

6.4

Crew

7.9

Boarding

7.2

Overall

7.0

Entertainment

6.7

Reviews

1 / 20
4.0
Okay

Tadhg,Mar 2025

DUB - MAN

Flew Man to BGI. Crew were poor. Both coffee or tea due to a "water issue". Business class meal for gluten free was disappointing. 1903 lounge was excellent.
Aer Lingus
7.0
Good
1,062 reviews
Aer Lingus
7.0
Good
1,062 reviews
Check prices

Comfort

7.0

Food

6.4

Crew

7.9

Boarding

7.2

Overall

7.0

Entertainment

6.7

Reviews

1 / 20
4.0
Okay

Tadhg,Mar 2025

DUB - MAN

Flew Man to BGI. Crew were poor. Both coffee or tea due to a "water issue". Business class meal for gluten free was disappointing. 1903 lounge was excellent.
easyJet
6.9
Okay
1,792 reviews
Aer Lingus
7.0
Good
1,062 reviews
Check prices

Comfort

7.0

Food

6.4

Crew

7.9

Boarding

7.2

Overall

7.0

Entertainment

6.7

Reviews

1 / 20
4.0
Okay

Tadhg,Mar 2025

DUB - MAN

Flew Man to BGI. Crew were poor. Both coffee or tea due to a "water issue". Business class meal for gluten free was disappointing. 1903 lounge was excellent.
British Airways
6.6
Okay
6,712 reviews
Aer Lingus
7.0
Good
1,062 reviews
Check prices

Comfort

7.0

Food

6.4

Crew

7.9

Boarding

7.2

Overall

7.0

Entertainment

6.7

Reviews

1 / 20
4.0
Okay

Tadhg,Mar 2025

DUB - MAN

Flew Man to BGI. Crew were poor. Both coffee or tea due to a "water issue". Business class meal for gluten free was disappointing. 1903 lounge was excellent.

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 £46. easyJet flights start at £52 while deals on British Airways start at £119 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: China Southern (93%), Malaysia Airlines (93%), Kenya Airways (93%).

  • 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 £76 on average our data indicates £1,409 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 27 March 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£33Average£78FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£63Average£139FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£77Average£148FlexibilityNo 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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