To save on the cost of your flight from Northern Ireland to Portsmouth, book at least 51 days before your planned departure. Booking around this time can save you about 176% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £70 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £111.
Due to multiple factors, expect to potentially pay more when booking in December. For low rates, May can be a great choice for travel to Portsmouth. Flights to Portsmouth from Northern Ireland in May are about £63 on average during May, but can be found for as low as £22.
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.
Fly from
Fly to
Budget
£67 - £115
Route
Depart
Return
Price
Belfast IntlSouthampton Eastleigh
BFS - SOU
BFSSOU
Belfast Intl
Fri 17/5
Nonstop1h 15m
Southampton Eastleigh
Sun 19/5
Nonstop1h 20m
Belfast CitySouthampton Eastleigh
BHD - SOU
BHDSOU
Belfast City
Sat 10/8
Nonstop1h 45m
Southampton Eastleigh
Thu 22/8
Nonstop1h 35m
Belfast IntlSouthampton Eastleigh
BFS - SOU
BFSSOU
Belfast Intl
Sat 8/6
Nonstop1h 15m
Southampton Eastleigh
Sat 15/6
Nonstop1h 20m
Belfast CitySouthampton Eastleigh
BHD - SOU
BHDSOU
Belfast City
Fri 24/5
Nonstop1h 45m
Southampton Eastleigh
Fri 31/5
Nonstop1h 35m
Belfast IntlSouthampton Eastleigh
BFS - SOU
BFSSOU
Belfast Intl
Mon 5/8
Nonstop1h 15m
Southampton Eastleigh
Thu 8/8
Nonstop1h 20m
Belfast IntlSouthampton Eastleigh
BFS - SOU
BFSSOU
Belfast Intl
Thu 16/5
Nonstop1h 15m
Southampton Eastleigh
Sun 19/5
Nonstop1h 20m
Belfast CitySouthampton Eastleigh
BHD - SOU
BHDSOU
Belfast City
Fri 24/5
Nonstop1h 45m
Southampton Eastleigh
Fri 31/5
Nonstop1h 35m
Belfast CitySouthampton Eastleigh
BHD - SOU
BHDSOU
Belfast City
Sat 8/6
Nonstop1h 45m
Southampton Eastleigh
Sat 15/6
Nonstop1h 45m
Belfast CitySouthampton Eastleigh
BHD - SOU
BHDSOU
Belfast City
Sat 10/8
Nonstop1h 45m
Southampton Eastleigh
Thu 22/8
1 stop4h 35m
No data available for this route at this time. Please check back soon.
Overall
Boarding
Food
Entertainment
Comfort
Crew
Reviews
It was on the time I wouldn’t change I tank 🫡
Overall
Boarding
Food
Entertainment
Comfort
Crew
Reviews
It was on the time I wouldn’t change I tank 🫡
Overall
Boarding
Food
Entertainment
Comfort
Crew
Reviews
It was on the time I wouldn’t change I tank 🫡
Overall
Boarding
Food
Entertainment
Comfort
Crew
Reviews
It was on the time I wouldn’t change I tank 🫡
29%of flight departures | Early morningMidnight to 6 am |
---|---|
30%of flight departures | Morning6 am to noon |
28%of flight departures | AfternoonNoon to 6 pm |
13%of flight departures | Evening6 pm to midnight |
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