This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/1. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — LHR
17 Jan — 24 Jan1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Belfast to Portsmouth are usually found in March or April, booked 76 days in advance, depart on a Saturday or Wednesday and return on a Tuesday
Cheap flight deals from Belfast to Portsmouth
Enter your travel dates to find the best prices.
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 18 December 2025.
Sat 20/1212:45BFS - SOU
2 stops20h 00mMultiple Airlines
Mon 22/1208:30SOU - BFS
2 stops23h 40mMultiple Airlines
Deal found 16/12£221
Mon 29/1217:45BHD - SOU
1 stop15h 05measyJet
Wed 31/1209:25SOU - BHD
1 stop7h 50measyJet
Deal found 16/12£239
Wed 24/1206:40BHD - SOU
Nonstop1h 45mAer Lingus
Sat 27/1208:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 16/12£250
Mon 29/1208:00BHD - SOU
1 stop9h 35mMultiple Airlines
Wed 31/1208:55SOU - BHD
Nonstop1h 40mMultiple Airlines
Deal found 16/12£289
Wed 24/1206:40BHD - SOU
Nonstop1h 45mMultiple Airlines
Sat 27/1213:55SOU - BHD
1 stop7h 05mMultiple Airlines
Deal found 16/12£292
Sat 20/1206:55BFS - SOU
1 stop6h 15measyJet
Mon 22/1212:05SOU - BFS
1 stop4h 55measyJet
Deal found 16/12£307
Wed 24/1206:30BHD - SOU
1 stop10h 30mKLM
Sat 27/1209:25SOU - BHD
1 stop11h 35mKLM
Deal found 16/12£307
Wed 24/1207:55BFS - SOU
1 stop3h 00mMultiple Airlines
Sat 27/1209:25SOU - BFS
3 stops21h 20mMultiple Airlines
Deal found 16/12£349
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 18 December 2025.
Sat 17/113:40BHD - SOU
Nonstop1h 35mAer Lingus
Mon 19/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 16/12£97
Fri 30/105:45BFS - SOU
1 stop8h 00mMultiple Airlines
Fri 6/217:45SOU - BFS
1 stop13h 40mMultiple Airlines
Deal found 16/12£138
Fri 30/111:45BFS - SOU
1 stop5h 25measyJet
Fri 6/217:45SOU - BFS
1 stop13h 40measyJet
Deal found 16/12£144
Thu 22/110:10BHD - SOU
Nonstop1h 40mAer Lingus
Fri 30/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 17/12£102
Mon 19/110:10BHD - SOU
Nonstop1h 40mAer Lingus
Tue 20/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 16/12£114
Mon 19/116:55BHD - SOU
Nonstop1h 35mAer Lingus
Wed 21/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 16/12£114
Mon 19/108:20BHD - SOU
1 stop3h 05mMultiple Airlines
Wed 21/112:15SOU - BHD
Nonstop1h 35mMultiple Airlines
Deal found 16/12£144
Thu 1/113:35BFS - SOU
1 stop3h 45measyJet
Mon 5/112:05SOU - BFS
1 stop8h 15measyJet
Deal found 17/12£152
Mon 19/108:20BHD - SOU
1 stop3h 05mMultiple Airlines
Tue 20/112:15SOU - BHD
Nonstop1h 35mMultiple Airlines
Deal found 16/12£144
Mon 19/108:15BFS - SOU
1 stop3h 10mMultiple Airlines
Wed 21/111:55SOU - BFS
1 stop4h 05mMultiple Airlines
Deal found 16/12£160
Mon 19/108:15BFS - SOU
1 stop3h 10mMultiple Airlines
Tue 20/115:00SOU - BFS
1 stop4h 05mMultiple Airlines
Deal found 16/12£160
Sat 17/113:40BHD - SOU
Nonstop1h 35mMultiple Airlines
Mon 19/112:00SOU - BHD
1 stop5h 20mMultiple Airlines
Deal found 16/12£163
Thu 22/120:00BHD - SOU
2 stops17h 45mMultiple Airlines
Fri 30/119:00SOU - BHD
Nonstop1h 35mMultiple Airlines
Deal found 17/12£166
Thu 22/118:35BFS - SOU
2 stops19h 10mMultiple Airlines
Fri 30/112:00SOU - BFS
1 stop8h 25mMultiple Airlines
Deal found 17/12£186
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 18 December 2025.
Sat 17/113:40BHD - SOU
Nonstop1h 35mAer Lingus
Mon 19/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 16/12£97
Thu 22/110:10BHD - SOU
Nonstop1h 40mAer Lingus
Fri 30/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 17/12£102
Mon 19/110:10BHD - SOU
Nonstop1h 40mAer Lingus
Tue 20/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 16/12£114
Mon 19/116:55BHD - SOU
Nonstop1h 35mAer Lingus
Wed 21/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 16/12£114
Wed 29/414:40BHD - SOU
Nonstop1h 35mAer Lingus
Wed 6/516:45SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 17/12£146
Thu 8/116:55BHD - SOU
Nonstop1h 35mBritish Airways
Mon 12/112:20SOU - BHD
Nonstop1h 35mBritish Airways
Deal found 14/12£230
Last-minute flights from Belfast to Portsmouth
Discover last-minute flight deals from Belfast to Portsmouth. Data last updated 18 December 2025 and is based on user searches.
Thu 1/113:35BFS - SOU
1 stop3h 45measyJet
Mon 5/112:05SOU - BFS
1 stop8h 15measyJet
Deal found 17/12£152
Sat 17/113:40BHD - SOU
Nonstop1h 35mAer Lingus
Mon 19/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 16/12£97
Sat 17/113:40BHD - SOU
Nonstop1h 35mMultiple Airlines
Mon 19/112:05SOU - BHD
2 stops21h 45mMultiple Airlines
Deal found 16/12£153
Mon 19/110:10BHD - SOU
Nonstop1h 40mAer Lingus
Tue 20/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 16/12£114
Mon 19/116:55BHD - SOU
Nonstop1h 35mAer Lingus
Wed 21/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 16/12£114
Mon 19/108:20BHD - SOU
1 stop3h 05mMultiple Airlines
Tue 20/112:15SOU - BHD
Nonstop1h 35mMultiple Airlines
Deal found 16/12£144
Mon 19/113:15BHD - SOU
2 stops6h 25mMultiple Airlines
Wed 21/108:55SOU - BHD
Nonstop1h 40mMultiple Airlines
Deal found 16/12£147
Mon 19/108:15BFS - SOU
1 stop3h 10mMultiple Airlines
Tue 20/115:00SOU - BFS
1 stop4h 05mMultiple Airlines
Deal found 16/12£160
Thu 22/110:10BHD - SOU
Nonstop1h 40mAer Lingus
Fri 30/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 17/12£102
Thu 22/120:00BHD - SOU
2 stops17h 45mMultiple Airlines
Fri 30/119:00SOU - BHD
Nonstop1h 35mMultiple Airlines
Deal found 17/12£166
Fri 30/105:45BFS - SOU
1 stop8h 00mMultiple Airlines
Fri 6/217:45SOU - BFS
1 stop13h 40mMultiple Airlines
Deal found 16/12£138
Fri 30/111:45BFS - SOU
1 stop5h 25measyJet
Fri 6/217:45SOU - BFS
1 stop13h 40measyJet
Deal found 16/12£144
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 18 December 2025.
Wed 15/412:40BHD - SOU
2 stops20h 45mLoganair
Deal found 17/12£270
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 18 December 2025.
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 18 December 2025.
Use the filters below to find and compare flights from Belfast to Portsmouth that are best for you.
Fly from
Belfast
Fly to
Portsmouth
Route
Depart
Return
Price
BelfastSouthampton
BHD - SOU
BHDSOU
Belfast City
Sat 17/1
13:40-15:15
Nonstop1h 35m
Southampton Eastleigh
Mon 19/1
19:00-20:35
Nonstop1h 35m
£97
BelfastSouthampton
BHD - SOU
BHDSOU
Belfast City
Thu 22/1
10:10-11:50
Nonstop1h 40m
Southampton Eastleigh
Fri 30/1
19:00-20:35
Nonstop1h 35m
£102
BelfastSouthampton
BHD - SOU
BHDSOU
Belfast City
Mon 19/1
10:10-11:50
Nonstop1h 40m
Southampton Eastleigh
Tue 20/1
08:55-10:35
Nonstop1h 40m
£114
BelfastSouthampton
BHD - SOU
BHDSOU
Belfast City
Mon 19/1
16:55-18:30
Nonstop1h 35m
Southampton Eastleigh
Wed 21/1
08:55-10:35
Nonstop1h 40m
£114
BelfastSouthampton
BFS - SOU
BFSSOU
Belfast Intl
Fri 30/1
05:45-13:45
1 stop8h 00m
Southampton Eastleigh
Fri 6/2
17:45-07:25
1 stop13h 40m
£138
BelfastSouthampton
BFS - SOU
BFSSOU
Belfast Intl
Fri 30/1
11:45-17:10
1 stop5h 25m
Southampton Eastleigh
Fri 6/2
17:45-07:25
1 stop13h 40m
£144
BelfastSouthampton
BHD - SOU
BHDSOU
Belfast City
Mon 19/1
08:20-11:25
1 stop3h 05m
Southampton Eastleigh
Wed 21/1
12:15-13:50
Nonstop1h 35m
£144
BelfastSouthampton
BHD - SOU
BHDSOU
Belfast City
Mon 19/1
08:20-11:25
1 stop3h 05m
Southampton Eastleigh
Tue 20/1
12:15-13:50
Nonstop1h 35m
£144
BelfastSouthampton
BFS - SOU
BFSSOU
Belfast Intl
Thu 1/1
13:35-17:20
1 stop3h 45m
Southampton Eastleigh
Mon 5/1
12:05-20:20
1 stop8h 15m
£152
BelfastSouthampton
BFS - SOU
BFSSOU
Belfast Intl
Mon 19/1
08:15-11:25
1 stop3h 10m
Southampton Eastleigh
Wed 21/1
11:55-16:00
1 stop4h 05m
£160
Flights are sorted by cheapest return flights first.
Deals found on 17/12
Showing 1-10 of 15 results
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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.
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
How far ahead should I book a flight from Belfast to Portsmouth?
Use this chart to determine the optimal time to book a return flight from Belfast to Portsmouth. Price data was last updated on 12 December 2025.
The price you pay for your flight from Belfast to Portsmouth may vary depending on when you book. For the best chance of a lower fare, look to book 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Belfast to Portsmouth?
Currently, February is the cheapest month in which you can book a flight from Belfast to Portsmouth (average of £14). Flying from Belfast to Portsmouth in July is currently the most expensive (average of £47). 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 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 18 December 2025.
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 38% on your trip compared to booking a flight in the afternoon.
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 16 December 2024.
Travellers seeking maximum savings on their Belfast to Portsmouth flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons 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 18 December 2025.
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.
They did not list a gate until it was time to board.
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 35m. Fly via Aer Lingus or easyJet to get the fastest option. Airlines will cover a distance of 316 mi. This flight may include one or multiple stops.
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.
What is the cheapest month to book a flight from Belfast to Portsmouth?
Currently, February is the cheapest month in which you can book a flight from Belfast to Portsmouth (average of £14). Flying from Belfast to Portsmouth in July is currently the most expensive (average of £47). 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.
Discover the top 6 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 18 December 2025.
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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