What are the cheapest airlines to fly from Northern Ireland to Portsmouth one-way?

For one-way options, check prices for easyJet. According to our data, you can fly for as low as £49. Users have also found prices from £62 and £118 on Aer Lingus and British Airways, respectively.

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

To save on the cost of your flight from Northern Ireland to Portsmouth, book at least 54 days before your planned departure. Booking around this time can save you about 141% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £51 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 Northern Ireland to Portsmouth?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, March can be a great choice for travel to Portsmouth. Flights to Portsmouth from Northern Ireland in March are about £62 on average during March, but can be found for as low as £19.

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.

£45+ Flights from Northern Ireland to Portsmouth

Find flights from Northern Ireland to Portsmouth within your budget

Fly from

Fly to

Route

Depart

Return

Price

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Mon 9/12

10:45-11:55

Nonstop1h 10m

Southampton Eastleigh

Wed 11/12

16:10-17:30

Nonstop1h 20m

£45

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sun 9/2

07:20-09:05

Nonstop1h 45m

Southampton Eastleigh

Thu 13/2

08:55-10:35

Nonstop1h 40m

£96

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Fri 10/1

11:15-19:40

2 stops8h 25m

Southampton Eastleigh

Mon 13/1

12:25-13:45

Nonstop1h 20m

£137

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sun 9/2

07:20-09:05

Nonstop1h 45m

Southampton Eastleigh

Thu 13/2

09:30-16:25

2 stops6h 55m

£218

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Tue 17/12

12:25-08:50

1 stop20h 25m

£49

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 26/11

06:40-08:25

Nonstop1h 45m

£62

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 29/1

06:40-08:25

Nonstop1h 45m

£118

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 29/1

14:20-19:10

1 stop4h 50m

£142

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Tue 26/11

07:10-08:45

2 stops25h 35m

£219

Flights are sorted by cheapest return flights first.

Deals found on 20/11

Cheap flight deals from Northern Ireland to Portsmouth

Find flight deals from Northern Ireland to Portsmouth

Cheapest flights from Northern Ireland to Portsmouth
Explore the most affordable flight options available from Northern Ireland to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.

Mon 9/1210:45BFS - SOU

Nonstop1h 10measyJet

Wed 11/1216:10SOU - BFS

Nonstop1h 20measyJet

Deal found 20/11£45

Mon 9/1217:30BFS - SOU

2 stops15h 15mMultiple Airlines

Wed 11/1216:10SOU - BFS

Nonstop1h 20mMultiple Airlines

Deal found 20/11£148

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 November 2024.

Mon 9/1210:45BFS - SOU

Nonstop1h 10measyJet

Wed 11/1216:10SOU - BFS

Nonstop1h 20measyJet

Deal found 20/11£45

Sun 9/207:20BHD - SOU

Nonstop1h 45mAer Lingus

Thu 13/208:55SOU - BHD

Nonstop1h 40mAer Lingus

Deal found 20/11£96

Fri 10/111:15BFS - SOU

2 stops8h 25mMultiple Airlines

Mon 13/112:25SOU - BFS

Nonstop1h 20mMultiple Airlines

Deal found 20/11£137

Sun 9/207:20BHD - SOU

Nonstop1h 45mMultiple Airlines

Thu 13/209:30SOU - BHD

2 stops6h 55mMultiple Airlines

Deal found 20/11£218

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

Mon 9/1210:45BFS - SOU

Nonstop1h 10measyJet

Wed 11/1216:10SOU - BFS

Nonstop1h 20measyJet

Deal found 20/11£45

Sun 9/207:20BHD - SOU

Nonstop1h 45mAer Lingus

Thu 13/208:55SOU - BHD

Nonstop1h 40mAer Lingus

Deal found 20/11£96

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

Mon 9/1210:45BFS - SOU

Nonstop1h 10measyJet

Wed 11/1216:10SOU - BFS

Nonstop1h 20measyJet

Deal found 20/11£45

Mon 9/1217:30BFS - SOU

2 stops15h 15mMultiple Airlines

Wed 11/1216:10SOU - BFS

Nonstop1h 20mMultiple Airlines

Deal found 20/11£148

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

Tue 17/1212:25BFS - SOU

1 stop20h 25measyJet

Deal found 20/11£49

Tue 26/1106:40BHD - SOU

Nonstop1h 45mAer Lingus

Deal found 20/11£62

Wed 29/106:40BHD - SOU

Nonstop1h 45mBritish Airways

Deal found 20/11£118

Wed 29/114:20BHD - SOU

1 stop4h 50mMultiple Airlines

Deal found 20/11£142

Tue 26/1107:10BFS - SOU

2 stops25h 35mMultiple Airlines

Deal found 20/11£219

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?

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

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

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

Aer Lingus

7.1

Good

1,089 reviews

Check prices

Reviews

1 / 10

Our experience with Aer Lingus was really good, all the crew members were really friendly

Aer Lingus

7.1

Good

1,089 reviews

Aer Lingus

7.1

Good

1,089 reviews

Check prices

Reviews

1 / 10

Our experience with Aer Lingus was really good, all the crew members were really friendly

easyJet

6.9

Okay

1,944 reviews

Aer Lingus

7.1

Good

1,089 reviews

Check prices

Reviews

1 / 10

Our experience with Aer Lingus was really good, all the crew members were really friendly

British Airways

6.7

Okay

6,837 reviews

Aer Lingus

7.1

Good

1,089 reviews

Check prices

Reviews

1 / 10

Our experience with Aer Lingus was really good, all the crew members were really friendly

Related info for your journey

What are the cheapest airlines to fly from Northern Ireland to Portsmouth one-way?
For one-way options, check prices for easyJet. According to our data, you can fly for as low as £49. Users have also found prices from £62 and £118 on Aer Lingus and British Airways, respectively.
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

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Northern Ireland to Portsmouth

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£19	Average£39	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
easyJet	Cheapest£33	Average£80	FlexibilityNo cancel fee	On-time86%	Search easyJet flights
Ryanair UK	Cheapest£34	Average£49	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair UK flights
Aer Lingus	Cheapest£57	Average£128	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
British Airways	Cheapest£75	Average£148	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Loganair	Cheapest£119	Average£175	FlexibilityNo cancel fee	On-time79%	Search Loganair flights

Fly with Cheapflights

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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Cheap flights from Northern Ireland to Portsmouth from £45

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find flights from Northern Ireland to Portsmouth within your budget

Cheap flight deals from Northern Ireland to Portsmouth

Find flight deals from Northern Ireland to Portsmouth

Cheapest flights from Northern Ireland to PortsmouthExplore the most affordable flight options available from Northern Ireland to Portsmouth. 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 Northern Ireland to Portsmouth. 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 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.

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?

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 November 2024.

Rainfall in Portsmouth by month

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

Temperature in Portsmouth by month

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

Reviews of airlines servicing Portsmouth

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.

What are the cheapest airlines to fly from Northern Ireland to Portsmouth one-way?

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

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

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

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

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 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

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?

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

Can Cheapflights 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?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Northern Ireland to Portsmouth
Explore the most affordable flight options available from Northern Ireland to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 November 2024.