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 £20. 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.

How far in advance should I book a flight from Portsmouth to Northern Ireland?

To save on the cost of your flight from Portsmouth to Northern Ireland, book at least 28 days before your planned departure. Booking around this time can save you about 136% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £56 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £111.

What is the cheapest month to fly from Portsmouth to Northern Ireland?

Our data shows that January tends to be the cheapest month to fly to Northern Ireland from Portsmouth. Users have commonly found prices around £62 for the month, but tickets can be as low as £15. Due to multiple factors, prepare for potentially higher prices in August.

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.

£20+ Flights from Portsmouth to Northern Ireland

Find flights from Portsmouth to Northern Ireland within your budget

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Fri 25/4

21:35-22:55

Nonstop1h 20m

Belfast Intl

Sun 27/4

10:10-11:25

Nonstop1h 15m

£71

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Mon 2/12

09:35-11:15

Nonstop1h 40m

Belfast City

Wed 4/12

06:40-08:25

Nonstop1h 45m

£77

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Wed 11/12

16:10-17:30

Nonstop1h 20m

Belfast Intl

Wed 18/12

18:20-08:45

2 stops14h 25m

£135

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Fri 7/2

19:25-21:00

Nonstop1h 35m

Belfast City

Mon 10/2

08:05-15:35

2 stops7h 30m

£161

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Fri 14/2

17:20-21:00

1 stop3h 40m

Belfast City

Mon 17/2

06:30-16:50

1 stop10h 20m

£265

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Mon 28/4

08:40-12:40

1 stop4h 00m

Belfast City

Thu 1/5

17:20-18:55

Nonstop1h 35m

£342

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Wed 11/12

16:10-17:30

Nonstop1h 20m

£20

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sat 4/1

08:55-10:35

Nonstop1h 40m

£34

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sat 4/1

09:40-19:35

1 stop9h 55m

£91

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Fri 21/2

08:10-15:40

1 stop7h 30m

£92

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Showing 1-10 of 13 results

Cheap flight deals from Portsmouth to Northern Ireland

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 21 November 2024.

Fri 22/1113:30SOU - BFS

Nonstop1h 20measyJet

Mon 9/1210:45BFS - SOU

Nonstop1h 10measyJet

Deal found 19/11£75

Mon 2/1209:35SOU - BHD

Nonstop1h 40mAer Lingus

Wed 4/1206:40BHD - SOU

Nonstop1h 45mAer Lingus

Deal found 20/11£77

Wed 11/1216:10SOU - BFS

Nonstop1h 20mMultiple Airlines

Wed 18/1218:20BFS - SOU

2 stops14h 25mMultiple Airlines

Deal found 19/11£135

Mon 2/1209:35SOU - BHD

Nonstop1h 40mMultiple Airlines

Wed 4/1216:45BHD - SOU

2 stops16h 00mMultiple Airlines

Deal found 20/11£176

Fri 22/1119:25SOU - BHD

Nonstop1h 35mBritish Airways

Mon 25/1113:30BHD - SOU

Nonstop1h 40mBritish Airways

Deal found 21/11£238

Fri 22/1117:20SOU - BHD

1 stop3h 40mKLM

Mon 9/1206:30BHD - SOU

1 stop10h 20mKLM

Deal found 20/11£519

Best flights from Portsmouth to Northern Ireland
Discover carefully curated flight deals from Portsmouth to Northern Ireland that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 November 2024.

Fri 14/213:30SOU - BFS

Nonstop1h 20measyJet

Mon 17/210:45BFS - SOU

Nonstop1h 10measyJet

Deal found 19/11£73

Mon 2/1209:35SOU - BHD

Nonstop1h 40mAer Lingus

Wed 4/1206:40BHD - SOU

Nonstop1h 45mAer Lingus

Deal found 20/11£77

Wed 11/1216:10SOU - BFS

Nonstop1h 20mMultiple Airlines

Wed 18/1218:20BFS - SOU

2 stops14h 25mMultiple Airlines

Deal found 21/11£135

Fri 14/217:20SOU - BHD

1 stop3h 40mKLM

Mon 17/206:30BHD - SOU

1 stop10h 20mKLM

Deal found 19/11£265

Fri 7/219:25SOU - BHD

Nonstop1h 35mMultiple Airlines

Mon 10/208:05BHD - SOU

2 stops7h 30mMultiple Airlines

Deal found 20/11£161

Mon 28/408:40SOU - BHD

1 stop4h 00mBritish Airways

Thu 1/517:20BHD - SOU

Nonstop1h 35mBritish Airways

Deal found 20/11£342

Direct flights from Portsmouth to Northern Ireland
Explore direct flight options from Portsmouth to Northern Ireland based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 November 2024.

Fri 25/421:35SOU - BFS

Nonstop1h 20measyJet

Sun 27/410:10BFS - SOU

Nonstop1h 15measyJet

Deal found 19/11£71

Mon 2/1209:35SOU - BHD

Nonstop1h 40mAer Lingus

Wed 4/1206:40BHD - SOU

Nonstop1h 45mAer Lingus

Deal found 20/11£77

Fri 14/219:25SOU - BHD

Nonstop1h 35mMultiple Airlines

Mon 17/213:30BHD - SOU

Nonstop1h 40mMultiple Airlines

Deal found 19/11£162

Last-minute flights from Portsmouth to Northern Ireland
Discover last-minute flight deals from Portsmouth to Northern Ireland. Data last updated 21 November 2024 and is based on user searches.

Fri 22/1113:30SOU - BFS

Nonstop1h 20measyJet

Mon 9/1210:45BFS - SOU

Nonstop1h 10measyJet

Deal found 19/11£75

Fri 22/1119:25SOU - BHD

Nonstop1h 35mBritish Airways

Mon 25/1113:30BHD - SOU

Nonstop1h 40mBritish Airways

Deal found 21/11£238

Fri 22/1117:20SOU - BHD

1 stop3h 40mKLM

Mon 9/1206:30BHD - SOU

1 stop10h 20mKLM

Deal found 20/11£519

Mon 25/1112:25SOU - BFS

Nonstop1h 20measyJet

Mon 2/1210:45BFS - SOU

Nonstop1h 10measyJet

Deal found 18/11£84

Thu 28/1119:25SOU - BHD

Nonstop1h 35mBritish Airways

Mon 2/1213:30BHD - SOU

Nonstop1h 40mBritish Airways

Deal found 20/11£324

Mon 2/1209:35SOU - BHD

Nonstop1h 40mAer Lingus

Wed 4/1206:40BHD - SOU

Nonstop1h 45mAer Lingus

Deal found 20/11£77

Mon 2/1209:35SOU - BHD

Nonstop1h 40mMultiple Airlines

Wed 4/1216:45BHD - SOU

2 stops16h 00mMultiple Airlines

Deal found 20/11£176

Wed 11/1216:10SOU - BFS

Nonstop1h 20mMultiple Airlines

Wed 18/1218:20BFS - SOU

2 stops14h 25mMultiple Airlines

Deal found 19/11£135

One-way flights from Portsmouth to Northern Ireland
Search for one-way flight options from Portsmouth to Northern Ireland. Find affordable one-way fares based on user searches. Data last updated 21 November 2024.

Wed 11/1216:10SOU - BFS

Nonstop1h 20measyJet

Deal found 20/11£20

Sat 4/108:55SOU - BHD

Nonstop1h 40mAer Lingus

Deal found 20/11£34

Sat 4/109:40SOU - BHD

1 stop9h 55mMultiple Airlines

Deal found 20/11£91

Fri 21/208:10SOU - BFS

1 stop7h 30mMultiple Airlines

Deal found 20/11£92

Tue 18/208:30SOU - BHD

2 stops7h 45mBritish Airways

Deal found 20/11£192

Sat 22/209:30SOU - BHD

1 stop7h 20mKLM

Deal found 20/11£204

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.

Travel insights for flights from Portsmouth to Northern Ireland

Get recent, data-driven insights about flights from Portsmouth to Northern Ireland including ideal travel times, pricing trends, and more.

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 August 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?

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

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

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 a feel of what it's like to fly with easyJet and British Airways 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

1,350 reviews

Check prices

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

KLM

7.8

Good

1,350 reviews

KLM

7.8

Good

1,350 reviews

Check prices

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Aer Lingus

7.1

Good

1,089 reviews

KLM

7.8

Good

1,350 reviews

Check prices

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

easyJet

6.9

Okay

1,944 reviews

KLM

7.8

Good

1,350 reviews

Check prices

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

British Airways

6.7

Okay

6,837 reviews

KLM

7.8

Good

1,350 reviews

Check prices

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Related info for your journey

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 £20. 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 August 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

Alternative routes for Portsmouth to Northern Ireland

Heathrow to Edinburgh flights

Gatwick to Belfast Intl flights

Luton to Edinburgh flights

Stansted to Edinburgh flights

Gatwick to Edinburgh flights

London City to Edinburgh flights

Luton to Belfast Intl flights

Edinburgh to Gatwick flights

Edinburgh to Luton flights

Edinburgh to Stansted flights

Edinburgh to Heathrow flights

Edinburgh to London City flights

Stansted to Belfast Intl flights

Heathrow to Glasgow Intl flights

Gatwick to Glasgow Intl flights

Heathrow to Belfast City flights

Heathrow to Belfast Intl flights

Manchester to Belfast Intl flights

Gatwick to Belfast City flights

Stansted to Glasgow Intl flights

Edinburgh to Belfast Intl flights

London City to Glasgow Intl flights

Luton to Glasgow Intl flights

London City to Belfast Intl flights

London City to Belfast City flights

Birmingham to Edinburgh flights

Manchester to Heathrow flights

Heathrow to Manchester flights

Bristol to Edinburgh flights

Manchester to Gatwick flights

Manchester to Belfast City flights

Luton to Belfast City flights

Newcastle upon Tyne to Belfast Intl flights

Gatwick to Manchester flights

London City to Manchester flights

Liverpool to Belfast Intl flights

Leeds to Belfast Intl flights

Newcastle upon Tyne to Heathrow flights

Birmingham to Belfast Intl flights

Edinburgh to Belfast City flights

Manchester to London City flights

Southampton to Edinburgh flights

Heathrow to Birmingham flights

Heathrow to Derry flights

Heathrow to Inverness flights

Exeter to Heathrow flights

Stansted to Manchester flights

Birmingham to Glasgow Intl flights

Heathrow to Aberdeen flights

Bristol to Glasgow Intl flights

Direct flights to United Kingdom

Top 6 airlines flying from Portsmouth to Northern Ireland

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£19	Average£36	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
easyJet	Cheapest£23	Average£79	FlexibilityNo cancel fee	On-time86%	Search easyJet flights
Ryanair UK	Cheapest£35	Average£56	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair UK flights
Aer Lingus	Cheapest£56	Average£113	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
British Airways	Cheapest£67	Average£149	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Loganair	Cheapest£129	Average£176	FlexibilityNo cancel fee	On-time79%	Search Loganair flights

Fly with Cheapflights

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!

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.

View all available airlines

Cheap flights from Portsmouth to Northern Ireland from £20

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find flights from Portsmouth to Northern Ireland within your budget

Cheap flight deals from Portsmouth to Northern Ireland

Find flight deals from Portsmouth to Northern Ireland

Cheapest flights from Portsmouth to Northern IrelandExplore 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 21 November 2024.

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 21 November 2024.

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.

Travel insights for flights from Portsmouth to Northern Ireland

Get recent, data-driven insights about flights from Portsmouth to Northern Ireland including ideal travel times, pricing trends, and more.

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

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 21 November 2024.

Rainfall in Northern Ireland by month

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

Temperature in Northern Ireland by month

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

Reviews of airlines servicing Northern Ireland

Get a feel of what it's like to fly with easyJet and British Airways 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.

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?

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

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

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

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

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 Portsmouth to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Portsmouth to Northern Ireland

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?

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 21 November 2024.