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Cheap flights from Portsmouth to Northern Ireland from £32

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BFS
8 Apr — 15 Apr1
1 adult

Cheap flight deals from Portsmouth to Northern Ireland

Keep the following information in mind while searching for Portsmouth to Northern Ireland flight deals. Data was last updated 3 April 2025.

Round-trip from

£51

One-way from

£32

Popular in

July

Cheapest in

January

Average price

£59
easyJet
  • easyJet
  • 16/5-18/5
  • Nonstop
  • 2h 35m total
  • Portsmouth to Northern Ireland
Search Deals
easyJet
  • easyJet
  • 11/7
  • Nonstop
  • 1h 20m total
  • Portsmouth to Northern Ireland
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£12 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Portsmouth to Northern Ireland

Cheapest flights from Portsmouth to Northern Ireland
Explore the most affordable flight options available from Portsmouth to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 April 2025.

Thu 15/515:05SOU - BFS
Nonstop1h 20measyJet
Sun 18/510:10BFS - SOU
Nonstop1h 15measyJet
Deal found 1/4£56
Mon 7/416:45SOU - BHD
Nonstop1h 35mAer Lingus
Fri 11/406:40BHD - SOU
Nonstop1h 45mAer Lingus
Deal found 2/4£94
Thu 15/520:00SOU - BFS
2 stops25h 15mMultiple Airlines
Sun 18/510:10BFS - SOU
Nonstop1h 15mMultiple Airlines
Deal found 1/4£124
Tue 15/408:55SOU - BHD
Nonstop1h 35mMultiple Airlines
Fri 18/415:00BHD - SOU
1 stop17h 25mMultiple Airlines
Deal found 2/4£192
Thu 22/508:55SOU - BHD
Nonstop1h 35mBritish Airways
Thu 22/514:40BHD - SOU
Nonstop1h 35mBritish Airways
Deal found 2/4£225
Mon 14/709:20SOU - BHD
1 stop11h 45mKLM
Mon 21/706:30BHD - SOU
1 stop10h 30mKLM
Deal found 2/4£423

Cheapflights Fare Finder

Customise your flight search to find flights from Portsmouth to Northern Ireland 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 3 April 2025.
Use the filters below to find and compare flights from Portsmouth to Northern Ireland that are best for you.

Fly from

Portsmouth

Fly to

Northern Ireland

Route

Depart

Return

Price

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Thu 15/5

15:05-16:25

Nonstop1h 20m

Belfast Intl

Sun 18/5

10:10-11:25

Nonstop1h 15m

£56

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Thu 15/5

20:00-21:15

2 stops25h 15m

Belfast Intl

Sun 18/5

10:10-11:25

Nonstop1h 15m

£124

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sat 31/5

08:55-10:30

Nonstop1h 35m

Belfast City

Sat 31/5

16:00-17:35

Nonstop1h 35m

£124

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Tue 15/4

08:55-10:30

Nonstop1h 35m

Belfast City

Fri 18/4

15:00-08:25

1 stop17h 25m

£192

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Thu 22/5

08:55-10:30

Nonstop1h 35m

Belfast City

Thu 22/5

14:40-16:15

Nonstop1h 35m

£225

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Mon 14/7

09:20-21:05

1 stop11h 45m

Belfast City

Mon 21/7

06:30-17:00

1 stop10h 30m

£423

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Fri 11/7

12:15-13:35

Nonstop1h 20m

£32

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Wed 11/6

08:55-10:30

Nonstop1h 35m

£43

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Wed 11/6

09:00-14:35

1 stop5h 35m

£86

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Wed 11/6

09:10-21:30

2 stops12h 20m

£98

Flights are sorted by cheapest return flights first.

Deals found on 2/4

Showing 1-10 of 13 results
1
2

Best time to book a flight from Portsmouth to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Portsmouth 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 Portsmouth to Northern Ireland

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

Currently, January is the cheapest month in which you can book a flight from Portsmouth to Northern Ireland (average of £67). Flying from Portsmouth to Northern Ireland 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 P0R to NIR?

Find hourly flight availability from Portsmouth to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 April 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Northern Ireland as you normally would.

Rainfall in Northern Ireland by month

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

In terms of precipitation, rainfall in Northern Ireland 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 Northern Ireland when rainfall is around 50.0 mm.

Temperature in Northern Ireland by month

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

If weather is an important factor for your trip to Northern Ireland, 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 Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. 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 Northern Ireland. Reviews last updated 3 April 2025.
Get a feel of what it's like to fly with KLM, Aer Lingus and easyJet from Portsmouth to Northern Ireland by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,323 reviews
Check prices

Entertainment

7.2

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

Food

7.3

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
1,323 reviews
KLM
7.8
Good
1,323 reviews
Check prices

Entertainment

7.2

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

Food

7.3

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
1,323 reviews
Check prices

Entertainment

7.2

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

Food

7.3

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
1,792 reviews
KLM
7.8
Good
1,323 reviews
Check prices

Entertainment

7.2

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

Food

7.3

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
6,717 reviews
KLM
7.8
Good
1,323 reviews
Check prices

Entertainment

7.2

Overall

7.8

Comfort

7.7

Boarding

7.8

Crew

8.4

Food

7.3

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 Portsmouth to Northern Ireland. 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 Portsmouth to Northern Ireland one-way?

    The cheapest airline one-way is easyJet, with whom users have recently found tickets for as low as £32. However, be on the lookout for offers from Aer Lingus and British Airways, as they are both options that can get you from Portsmouth to Northern Ireland for a low price.

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

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

  • How can I find direct flights from Portsmouth to Northern Ireland?

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Northern Ireland 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 Portsmouth to Northern Ireland?

    Currently, January is the cheapest month in which you can book a flight from Portsmouth to Northern Ireland (average of £67). Flying from Portsmouth to Northern Ireland 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 Portsmouth to Northern Ireland

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Top 6 airlines flying from Portsmouth to Northern Ireland

Discover the top 6 airlines that operate flights from Portsmouth to Northern Ireland. 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 3 April 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£21Average£38FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£30Average£53FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£31Average£77FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£56Average£99FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£71Average£163FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£132Average£172FlexibilityNo 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 Portsmouth to Northern Ireland?

When you search for this flight from Portsmouth to Northern Ireland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights simply makes it quick and affordable to book flights from Portsmouth to Northern Ireland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Portsmouth to Northern Ireland, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Portsmouth to Northern Ireland become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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