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 27/9. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — LHR
14 Sep — 21 Sep1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Belfast to Portsmouth are usually found in April or March, booked 47 days in advance, depart on a Tuesday or Thursday and return on a Friday
Cheap flight deals from Belfast to Portsmouth
Enter your travel dates to find the best prices.
Cheapest
Best
Direct
Last-minute
One-way
Cheapest flights from Belfast to Portsmouth
Explore the most affordable flight options available from Belfast to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2026.
Sun 27/910:50 -
Nonstop1h 15m
Sun 4/1012:35 -
Nonstop1h 15m
Deal found 13/8£38
Sat 3/1010:30 -
Nonstop1h 15m
Sun 4/1012:35 -
Nonstop1h 15m
Deal found 13/8£42
Sun 27/910:50 -
Nonstop1h 15m
Mon 28/912:25 -
Nonstop1h 15m
Deal found 10/8£45
Sun 20/910:50 -
Nonstop1h 15m
Mon 28/912:25 -
Nonstop1h 15m
Deal found 14/8£50
Sat 26/910:30 -
Nonstop1h 15m
Mon 28/912:25 -
Nonstop1h 15m
Deal found 11/8£55
Mon 28/910:35 -
Nonstop1h 15m
Mon 5/1012:25 -
Nonstop1h 15m
Deal found 14/8£64
Sun 13/910:50 -
Nonstop1h 15m
Sun 20/912:35 -
Nonstop1h 15m
Deal found 13/8£68
Sat 12/910:30 -
Nonstop1h 15m
Sat 19/912:15 -
Nonstop1h 15m
Deal found 14/8£71
Sun 30/806:40 -
Nonstop1h 45m
Thu 3/919:30 -
Nonstop1h 35m
Deal found 15/8£78
Sun 27/906:40 -
Nonstop1h 45m
Sun 4/1008:55 -
Nonstop1h 40m
Deal found 13/8£81
Fri 11/906:40 -
Nonstop1h 45m
Fri 18/908:55 -
Nonstop1h 40m
Deal found 14/8£87
Tue 8/917:25 -
Nonstop1h 35m
Tue 15/912:35 -
Nonstop1h 35m
Deal found 10/8£87
Best flights from Belfast to Portsmouth
Discover carefully curated flight deals from Belfast to Portsmouth that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 August 2026.
Sun 27/910:50 -
Nonstop1h 15m
Sun 4/1012:35 -
Nonstop1h 15m
Deal found 13/8£38
Sat 3/1010:25 -
Nonstop1h 40m
Sun 4/1008:55 -
Nonstop1h 40m
Deal found 13/8£87
Sun 27/910:50 -
Nonstop1h 15m
Mon 28/912:25 -
Nonstop1h 15m
Deal found 10/8£45
Mon 28/910:35 -
Nonstop1h 15m
Mon 5/1012:25 -
Nonstop1h 15m
Deal found 14/8£64
Tue 1/917:00 -
2 stops15h 05m
Fri 4/919:30 -
Nonstop1h 35m
Deal found 10/8£155
Sat 12/910:30 -
Nonstop1h 15m
Sat 19/912:15 -
Nonstop1h 15m
Deal found 14/8£71
Fri 4/906:40 -
Nonstop1h 45m
Mon 7/919:30 -
Nonstop1h 35m
Deal found 11/8£88
Sat 31/1006:40 -
Nonstop1h 45m
Sat 7/1108:55 -
Nonstop1h 40m
Deal found 11/8£233
Fri 30/1012:55 -
Nonstop1h 20m
Fri 30/1017:15 -
1 stop5h 30m
Deal found 15/8£89
Fri 30/1012:55 -
Nonstop1h 20m
Sat 31/1008:20 -
1 stop8h 00m
Deal found 13/8£89
Fri 30/1012:55 -
Nonstop1h 20m
Wed 4/1109:15 -
1 stop24h 10m
Deal found 13/8£96
Fri 30/1012:55 -
Nonstop1h 20m
Thu 5/1113:55 -
1 stop8h 25m
Deal found 13/8£101
Tue 1/921:15 -
1 stop13h 00m
Fri 4/912:20 -
Nonstop1h 15m
Deal found 10/8£101
Fri 4/910:35 -
Nonstop1h 15m
Mon 7/912:25 -
Nonstop1h 15m
Deal found 11/8£107
Sun 11/1010:25 -
Nonstop1h 40m
Wed 14/1012:35 -
Nonstop1h 35m
Deal found 13/8£233
Thu 24/917:25 -
Nonstop1h 35m
Sat 26/908:55 -
Nonstop1h 40m
Deal found 10/8£233
Mon 8/217:25 -
Nonstop1h 35m
Wed 10/208:55 -
Nonstop1h 40m
Deal found 14/8£233
Direct flights from Belfast to Portsmouth
Explore direct flight options from Belfast to Portsmouth based on user searches, and compare prices and availability for your desired travel dates. Data last updated 15 August 2026.
Sun 27/910:50 -
Nonstop1h 15m
Sun 4/1012:35 -
Nonstop1h 15m
Deal found 13/8£38
Sat 3/1010:30 -
Nonstop1h 15m
Sun 4/1012:35 -
Nonstop1h 15m
Deal found 13/8£42
Sun 27/910:50 -
Nonstop1h 15m
Mon 28/912:25 -
Nonstop1h 15m
Deal found 10/8£45
Sun 20/910:50 -
Nonstop1h 15m
Mon 28/912:25 -
Nonstop1h 15m
Deal found 14/8£50
Sat 26/910:30 -
Nonstop1h 15m
Mon 28/912:25 -
Nonstop1h 15m
Deal found 11/8£55
Mon 28/910:35 -
Nonstop1h 15m
Mon 5/1012:25 -
Nonstop1h 15m
Deal found 14/8£64
Sun 13/910:50 -
Nonstop1h 15m
Sun 20/912:35 -
Nonstop1h 15m
Deal found 13/8£68
Sat 12/910:30 -
Nonstop1h 15m
Sat 19/912:15 -
Nonstop1h 15m
Deal found 14/8£71
Sun 30/806:40 -
Nonstop1h 45m
Thu 3/919:30 -
Nonstop1h 35m
Deal found 15/8£78
Sun 27/906:40 -
Nonstop1h 45m
Sun 4/1008:55 -
Nonstop1h 40m
Deal found 13/8£81
Fri 11/906:40 -
Nonstop1h 45m
Fri 18/908:55 -
Nonstop1h 40m
Deal found 14/8£87
Tue 8/917:25 -
Nonstop1h 35m
Tue 15/912:35 -
Nonstop1h 35m
Deal found 10/8£87
Last-minute flights from Belfast to Portsmouth
Discover last-minute flight deals from Belfast to Portsmouth. Data last updated 15 August 2026 and is based on user searches.
Sun 30/806:40 -
Nonstop1h 45m
Thu 3/919:30 -
Nonstop1h 35m
Deal found 15/8£78
Tue 1/906:40 -
Nonstop1h 45m
Fri 4/908:55 -
Nonstop1h 40m
Deal found 10/8£88
Tue 8/917:25 -
Nonstop1h 35m
Tue 15/912:35 -
Nonstop1h 35m
Deal found 10/8£87
Fri 11/906:40 -
Nonstop1h 45m
Fri 18/908:55 -
Nonstop1h 40m
Deal found 14/8£87
Sat 12/910:30 -
Nonstop1h 15m
Sat 19/912:15 -
Nonstop1h 15m
Deal found 14/8£71
Sun 13/910:50 -
Nonstop1h 15m
Sun 20/912:35 -
Nonstop1h 15m
Deal found 13/8£68
Sun 20/910:50 -
Nonstop1h 15m
Mon 28/912:25 -
Nonstop1h 15m
Deal found 14/8£50
Sat 26/910:30 -
Nonstop1h 15m
Mon 28/912:25 -
Nonstop1h 15m
Deal found 11/8£55
Sun 27/910:50 -
Nonstop1h 15m
Sun 4/1012:35 -
Nonstop1h 15m
Deal found 13/8£38
Sun 27/910:50 -
Nonstop1h 15m
Mon 28/912:25 -
Nonstop1h 15m
Deal found 10/8£45
Sun 27/906:40 -
Nonstop1h 45m
Sun 4/1008:55 -
Nonstop1h 40m
Deal found 13/8£81
Mon 28/910:35 -
Nonstop1h 15m
Mon 5/1012:25 -
Nonstop1h 15m
Deal found 14/8£64
One-way flights from Belfast to Portsmouth
Search for one-way flight options from Belfast to Portsmouth. Find affordable one-way fares based on user searches. Data last updated 15 August 2026.
Sun 27/910:50 -
Nonstop1h 15m
Deal found 12/8£16
Sun 30/806:40 -
Nonstop1h 45m
Deal found 12/8£44
Mon 23/1117:25 -
Nonstop1h 35m
Deal found 15/8£48
Fri 20/1120:45 -
1 stop11h 00m
Deal found 12/8£50
Sat 21/1110:25 -
Nonstop1h 40m
Deal found 13/8£54
Fri 18/921:05 -
1 stop10h 15m
Deal found 13/8£56
Fri 11/1217:25 -
Nonstop1h 35m
Deal found 11/8£58
Sun 30/810:50 -
Nonstop1h 15m
Deal found 12/8£61
Thu 20/806:40 -
Nonstop1h 45m
Deal found 12/8£66
Fri 18/909:50 -
1 stop21h 30m
Deal found 13/8£76
Mon 30/1121:10 -
1 stop14h 35m
Deal found 12/8£81
Mon 23/1115:30 -
1 stop20h 15m
Deal found 15/8£81
Find flight deals from Belfast to Portsmouth
Keep the following information in mind while searching for Belfast to Portsmouth flight deals. Data was last updated 15 August 2026.
Customise your flight search to find flights from Belfast 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 15 August 2026.
Use the filters below to find and compare flights from Belfast to Portsmouth that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
Fastest return journey
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Sun 27/9
10:50-12:05
Nonstop1h 15m
Southampton Eastleigh
Sun 4/10
12:35-13:50
Nonstop1h 15m
£38
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Sun 27/9
10:50-12:05
Nonstop1h 15m
Southampton Eastleigh
Mon 28/9
12:25-13:40
Nonstop1h 15m
£45
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Mon 28/9
10:35-11:50
Nonstop1h 15m
Southampton Eastleigh
Mon 5/10
12:25-13:40
Nonstop1h 15m
£64
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Sat 12/9
10:30-11:45
Nonstop1h 15m
Southampton Eastleigh
Sat 19/9
12:15-13:30
Nonstop1h 15m
£71
BelfastSouthampton
BHD Belfast City - SOU Southampton Eastleigh
BHDSOU
Belfast City
Sat 3/10
10:25-12:05
Nonstop1h 40m
Southampton Eastleigh
Sun 4/10
08:55-10:35
Nonstop1h 40m
£87
BelfastSouthampton
BHD Belfast City - SOU Southampton Eastleigh
BHDSOU
Belfast City
Fri 4/9
06:40-08:25
Nonstop1h 45m
Southampton Eastleigh
Mon 7/9
19:30-21:05
Nonstop1h 35m
£88
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Fri 30/10
12:55-14:15
Nonstop1h 20m
Southampton Eastleigh
Fri 30/10
17:15-22:45
1 stop5h 30m
£89
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Fri 30/10
12:55-14:15
Nonstop1h 20m
Southampton Eastleigh
Sat 31/10
08:20-16:20
1 stop8h 00m
£89
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Fri 30/10
12:55-14:15
Nonstop1h 20m
Southampton Eastleigh
Wed 4/11
09:15-09:25
1 stop24h 10m
£96
BelfastSouthampton
BFS Belfast Intl - SOU Southampton Eastleigh
BFSSOU
Belfast Intl
Fri 30/10
12:55-14:15
Nonstop1h 20m
Southampton Eastleigh
Thu 5/11
13:55-22:20
1 stop8h 25m
£101
Flights are sorted by cheapest return flights first.
Deals found on 11/8
Showing 1-10 of 34 resultsSorted by cheapest first
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Best time to book a flight from Belfast to Portsmouth
Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Belfast with our price prediction graph.
BFS-SOU
BHD-SOU
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 Belfast to Portsmouth
BF1-P0R
BFS-SOU
BHD-SOU
What is the cheapest time of day to fly from BFS to P0R?
Find hourly flight availability from Belfast 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 15 August 2026.
A simple way to save on the total cost of your ticket is to fly from Belfast to Portsmouth in the evening. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight in the afternoon.
How much does it cost for a return flight from Belfast to Portsmouth?
Airfare is below average for this route at the moment.
Belfast to Portsmouth flights typically cost between £95 and £158 in September.The cheapest return price found within the last 5 days was £38 on easyJet (27 Sept–4 Oct).
What is the cheapest day to fly from Belfast to Portsmouth?
Use this chart to determine the cheapest time to fly return from Belfast to Portsmouth. Price data was last updated on 15 August 2026.
Travellers seeking maximum savings on their Belfast to Portsmouth flight should consider departing on Tuesday at midday when fares are most often at their lowest. Monday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
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 15 August 2026.
Get a feel of what it's like to fly with Aer Lingus and easyJet from Belfast to Portsmouth by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Related info for your journey
Find useful and relevant information for your journey from Belfast to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
How long is the flight from Belfast to Portsmouth?
There are many flights that can get you from Belfast to Portsmouth in 1h 15m. Fly via easyJet or Aer Lingus to get the fastest option. Airlines will cover a distance of 326 mi. All flights are typically direct.
Can I find deals for flights from Belfast to Portsmouth that include hotel bookings?
Yes. In addition to deals on Belfast to Portsmouth flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Belfast to Portsmouth?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to Portsmouth.
Can I find deals for business class flights from Belfast to Portsmouth?
Yes. Cheapflights offers flight deals from Belfast 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.
Discover the top 5 airlines that operate flights from Belfast 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 15 August 2026.
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 Belfast to Portsmouth?
Deals for Belfast 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 Belfast to Portsmouth?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast to Portsmouth for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Belfast to Portsmouth with no change fees?
Certainly. Search results for flights to Portsmouth from Belfast shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Belfast to Portsmouth become cheaper?
Yes, Cheapflights offers price alerts on Belfast to Portsmouth flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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