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Cheap flights from Northern Ireland to Portsmouth from £45

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 16/3. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LHR
26 Dec — 2 Jan1
1 adult

Cheap flight deals from Northern Ireland to Portsmouth

Discover tips and strategies to find the most affordable flight options for your journey from Northern Ireland (GBNIR) to Portsmouth (P0R). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 December 2024.

Round-trip from

£49

One-way from

£45
easyJet
  • easyJet
  • 20/1-27/1
  • Nonstop
  • 2h 30m total
  • Northern Ireland to Portsmouth
Aer Lingus
  • Aer Lingus
  • 16/3
  • Nonstop
  • 1h 45m total
  • Northern Ireland to Portsmouth

Find flight deals from Northern Ireland to Portsmouth

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

Mon 20/110:45BFS - SOU
Nonstop1h 10measyJet
Mon 27/112:25SOU - BFS
Nonstop1h 20measyJet
Deal found 20/12£49
Mon 20/113:30BHD - SOU
Nonstop1h 40mAer Lingus
Wed 22/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 20/12£78
Mon 20/110:50BFS - SOU
2 stops8h 50mMultiple Airlines
Mon 27/112:25SOU - BFS
Nonstop1h 20mMultiple Airlines
Deal found 20/12£142
Tue 4/217:20BHD - SOU
Nonstop1h 35mBritish Airways
Wed 5/219:25SOU - BHD
Nonstop1h 35mBritish Airways
Deal found 20/12£225
Fri 4/406:30BHD - SOU
1 stop10h 30mKLM
Thu 10/417:35SOU - BHD
1 stop3h 40mKLM
Deal found 20/12£314
Fri 4/407:10BHD - SOU
1 stop8h 45mMultiple Airlines
Thu 10/419:25SOU - BHD
Nonstop1h 35mMultiple Airlines
Deal found 20/12£192

Find flights from Northern Ireland to Portsmouth within your budget

Customise your flight search to find flights from Northern Ireland 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 21 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Mon 20/1

13:30-15:10

Nonstop1h 40m

Southampton Eastleigh

Wed 22/1

08:55-10:35

Nonstop1h 40m

£78

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Wed 19/2

14:30-15:40

Nonstop1h 10m

Southampton Eastleigh

Wed 26/2

09:20-19:55

1 stop10h 35m

£98

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Mon 20/1

10:50-19:40

2 stops8h 50m

Southampton Eastleigh

Mon 27/1

12:25-13:45

Nonstop1h 20m

£142

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 4/4

07:10-15:55

1 stop8h 45m

Southampton Eastleigh

Thu 10/4

19:25-21:00

Nonstop1h 35m

£192

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 4/2

17:20-18:55

Nonstop1h 35m

Southampton Eastleigh

Wed 5/2

19:25-21:00

Nonstop1h 35m

£225

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 4/4

06:30-17:00

1 stop10h 30m

Southampton Eastleigh

Thu 10/4

17:35-21:15

1 stop3h 40m

£314

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sun 16/3

07:20-09:05

Nonstop1h 45m

£45

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sun 16/3

07:10-17:35

1 stop10h 25m

£136

Flights are sorted by cheapest return flights first.

Deals found on 20/12

Best time to book a flight from Northern Ireland to Portsmouth

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

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

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

Currently, January is the cheapest month in which you can book a flight from Northern Ireland to Portsmouth (average of £112). Flying from Northern Ireland to Portsmouth in July is currently the most expensive (average of £160). 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 NIR to P0R?

Find hourly flight availability from Northern Ireland 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 21 December 2024.

When flying from Northern Ireland 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.

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 21 December 2024.
7.8
Good
1,344 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.2

Food

7.3

Crew

8.4

Boarding

7.9

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

7.8
Good
1,344 reviews
7.8
Good
1,344 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.2

Food

7.3

Crew

8.4

Boarding

7.9

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

7.1
Good
1,076 reviews
7.8
Good
1,344 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.2

Food

7.3

Crew

8.4

Boarding

7.9

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

6.9
Okay
1,896 reviews
7.8
Good
1,344 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.2

Food

7.3

Crew

8.4

Boarding

7.9

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

6.6
Okay
6,815 reviews
7.8
Good
1,344 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.2

Food

7.3

Crew

8.4

Boarding

7.9

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find deals for flights from Northern Ireland to Portsmouth that include hotel bookings?

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Northern Ireland to Portsmouth (average of £112). Flying from Northern Ireland to Portsmouth in July is currently the most expensive (average of £160). 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 Northern Ireland to Portsmouth

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

Top 6 airlines flying from Northern Ireland to Portsmouth

Discover the top 6 airlines that operate flights from Northern Ireland 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 21 December 2024.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£19Average£40FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
RyanairCheapest£33Average£49FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
easyJetCheapest£34Average£80FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£58Average£130FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£76Average£152FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LoganairCheapest£121Average£181FlexibilityNo 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 Northern Ireland to Portsmouth?

Deals for Northern Ireland 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 Northern Ireland to Portsmouth?

Cheapflights helps you find that perfect flight to Portsmouth from Northern Ireland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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

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

Not ready to book yet? You can track prices for flights from Northern Ireland to Portsmouth on Cheapflights with our Price Alert feature and get notified when better prices are available.

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