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 28/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BHD
25 Jan — 1 Feb1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Portsmouth to Belfast are usually found in January or March, booked 83 days in advance, depart on a Tuesday or Saturday and return on a Saturday
Cheap flight deals from Portsmouth to Belfast
Enter your travel dates to find the best prices.
Cheapest flights from Portsmouth to Belfast
Explore the most affordable flight options available from Portsmouth to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 December 2025.
Tue 30/1219:00SOU - BHD
Nonstop1h 35mMultiple Airlines
Thu 1/112:00BHD - SOU
1 stop5h 20mMultiple Airlines
Deal found 26/12£242
Tue 30/1219:00SOU - BHD
Nonstop1h 35mAer Lingus
Thu 1/110:10BHD - SOU
Nonstop1h 40mAer Lingus
Deal found 26/12£263
Wed 31/1209:25SOU - BFS
1 stop3h 20measyJet
Wed 31/1221:20BFS - SOU
2 stops16h 15measyJet
Deal found 25/12£293
Wed 31/1209:25SOU - BFS
1 stop3h 20mMultiple Airlines
Wed 31/1216:25BFS - SOU
3 stops21h 10mMultiple Airlines
Deal found 25/12£491
Best flights from Portsmouth to Belfast
Discover carefully curated flight deals from Portsmouth to Belfast that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 26 December 2025.
Mon 13/412:25SOU - BFS
Nonstop1h 15measyJet
Fri 17/410:35BFS - SOU
Nonstop1h 15measyJet
Deal found 25/12£78
Wed 21/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Wed 28/110:10BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 24/12£87
Tue 14/412:35SOU - BHD
1 stop4h 15mMultiple Airlines
Fri 17/410:55BHD - SOU
Nonstop1h 40mMultiple Airlines
Deal found 25/12£161
Mon 13/416:45SOU - BHD
Nonstop1h 35mAer Lingus
Sat 18/414:40BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 25/12£111
Tue 6/108:55SOU - BHD
Nonstop1h 40mBritish Airways
Wed 7/110:10BHD - SOU
Nonstop1h 35mBritish Airways
Deal found 23/12£228
Tue 14/413:25SOU - BFS
1 stop17h 40measyJet
Fri 17/410:35BFS - SOU
Nonstop1h 15measyJet
Deal found 25/12£117
Mon 13/416:45SOU - BHD
Nonstop1h 35mAer Lingus
Fri 17/406:40BHD - SOU
Nonstop1h 45mAer Lingus
Deal found 25/12£113
Fri 23/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Fri 30/116:55BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 24/12£123
Sun 8/218:20SOU - BFS
1 stop13h 25measyJet
Sun 15/211:30BFS - SOU
1 stop6h 15measyJet
Deal found 25/12£139
Wed 15/412:35SOU - BHD
1 stop3h 25mMultiple Airlines
Fri 17/414:40BHD - SOU
Nonstop1h 35mMultiple Airlines
Deal found 25/12£161
Mon 13/412:25SOU - BFS
Nonstop1h 15measyJet
Thu 16/421:40BFS - SOU
1 stop9h 45measyJet
Deal found 25/12£145
Mon 13/418:20SOU - BFS
1 stop3h 10mMultiple Airlines
Fri 17/410:35BFS - SOU
Nonstop1h 15mMultiple Airlines
Deal found 25/12£163
Tue 14/412:35SOU - BFS
1 stop3h 00mMultiple Airlines
Fri 17/410:35BFS - SOU
Nonstop1h 15mMultiple Airlines
Deal found 25/12£170
Fri 23/119:00SOU - BHD
Nonstop1h 35mMultiple Airlines
Fri 30/108:20BHD - SOU
1 stop8h 50mMultiple Airlines
Deal found 25/12£173
Fri 23/117:45SOU - BFS
1 stop13h 40measyJet
Fri 30/111:45BFS - SOU
1 stop5h 25measyJet
Deal found 25/12£190
Mon 13/408:55SOU - BHD
Nonstop1h 40mMultiple Airlines
Thu 16/407:15BHD - SOU
1 stop3h 50mMultiple Airlines
Deal found 25/12£175
Fri 23/108:10SOU - BFS
2 stops15h 15mMultiple Airlines
Fri 30/105:45BFS - SOU
1 stop8h 00mMultiple Airlines
Deal found 25/12£178
Sun 8/218:20SOU - BFS
2 stops13h 40mMultiple Airlines
Sun 15/216:45BFS - SOU
2 stops26h 35mMultiple Airlines
Deal found 25/12£190
Mon 13/412:25SOU - BFS
Nonstop1h 15mMultiple Airlines
Sat 18/407:15BFS - SOU
1 stop3h 30mMultiple Airlines
Deal found 25/12£195
Tue 14/412:35SOU - BHD
1 stop4h 15mMultiple Airlines
Thu 16/407:15BHD - SOU
1 stop3h 50mMultiple Airlines
Deal found 25/12£209
Direct flights from Portsmouth to Belfast
Explore direct flight options from Portsmouth to Belfast based on user searches, and compare prices and availability for your desired travel dates. Data last updated 26 December 2025.
Mon 13/412:25SOU - BFS
Nonstop1h 15measyJet
Fri 17/410:35BFS - SOU
Nonstop1h 15measyJet
Deal found 25/12£78
Wed 21/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Wed 28/110:10BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 24/12£87
Tue 14/408:55SOU - BHD
Nonstop1h 40mAer Lingus
Sat 18/414:40BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 25/12£90
Tue 14/416:45SOU - BHD
Nonstop1h 35mAer Lingus
Fri 17/414:40BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 25/12£91
Mon 13/416:45SOU - BHD
Nonstop1h 35mAer Lingus
Sat 18/414:40BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 25/12£111
Mon 13/416:45SOU - BHD
Nonstop1h 35mAer Lingus
Fri 17/406:40BHD - SOU
Nonstop1h 45mAer Lingus
Deal found 25/12£113
Fri 23/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Fri 30/116:55BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 24/12£123
Mon 12/112:20SOU - BHD
Nonstop1h 35mAer Lingus
Mon 12/116:55BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 24/12£212
Tue 6/112:15SOU - BHD
Nonstop1h 35mBritish Airways
Thu 8/116:55BHD - SOU
Nonstop1h 35mBritish Airways
Deal found 23/12£228
Mon 9/219:00SOU - BHD
Nonstop1h 35mBritish Airways
Fri 13/216:55BHD - SOU
Nonstop1h 35mBritish Airways
Deal found 23/12£229
Fri 23/119:00SOU - BHD
Nonstop1h 35mBritish Airways
Fri 6/216:55BHD - SOU
Nonstop1h 35mBritish Airways
Deal found 25/12£261
Last-minute flights from Portsmouth to Belfast
Discover last-minute flight deals from Portsmouth to Belfast. Data last updated 26 December 2025 and is based on user searches.
Wed 31/1209:25SOU - BFS
1 stop3h 20measyJet
Wed 31/1221:20BFS - SOU
2 stops16h 15measyJet
Deal found 25/12£293
Wed 31/1209:25SOU - BFS
1 stop3h 20mMultiple Airlines
Wed 31/1216:25BFS - SOU
3 stops21h 10mMultiple Airlines
Deal found 25/12£491
Tue 6/112:15SOU - BHD
Nonstop1h 35mBritish Airways
Thu 8/116:55BHD - SOU
Nonstop1h 35mBritish Airways
Deal found 23/12£228
Mon 12/112:20SOU - BHD
Nonstop1h 35mAer Lingus
Mon 12/116:55BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 24/12£212
Wed 21/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Wed 28/110:10BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 24/12£87
Wed 21/112:15SOU - BHD
Nonstop1h 35mMultiple Airlines
Wed 28/118:05BHD - SOU
2 stops23h 15mMultiple Airlines
Deal found 24/12£163
Wed 21/111:55SOU - BFS
1 stop4h 05mMultiple Airlines
Wed 28/115:45BFS - SOU
2 stops17h 00mMultiple Airlines
Deal found 24/12£225
Wed 21/112:15SOU - BHD
Nonstop1h 35mBritish Airways
Wed 4/206:40BHD - SOU
Nonstop1h 45mBritish Airways
Deal found 24/12£229
Fri 23/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Fri 30/116:55BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 24/12£123
Fri 23/119:00SOU - BHD
Nonstop1h 35mMultiple Airlines
Fri 30/108:20BHD - SOU
1 stop8h 50mMultiple Airlines
Deal found 25/12£173
Fri 23/108:10SOU - BFS
2 stops15h 15mMultiple Airlines
Fri 30/105:45BFS - SOU
1 stop8h 00mMultiple Airlines
Deal found 25/12£178
Fri 23/117:45SOU - BFS
1 stop13h 40measyJet
Fri 30/111:45BFS - SOU
1 stop5h 25measyJet
Deal found 25/12£190
One-way flights from Portsmouth to Belfast
Search for one-way flight options from Portsmouth to Belfast. Find affordable one-way fares based on user searches. Data last updated 26 December 2025.
Sat 28/208:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 24/12£38
Sat 28/213:55SOU - BFS
1 stop23h 35measyJet
Deal found 24/12£59
Sat 28/213:55SOU - BHD
1 stop7h 05mMultiple Airlines
Deal found 24/12£87
Sat 28/215:25SOU - BHD
2 stops16h 45measyJet
Deal found 24/12£93
Find flight deals from Portsmouth to Belfast
Keep the following information in mind while searching for Portsmouth to Belfast flight deals. Data was last updated 26 December 2025.
Customise your flight search to find flights from Portsmouth to Belfast 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 26 December 2025.
Use the filters below to find and compare flights from Portsmouth to Belfast that are best for you.
Fly from
Portsmouth
Fly to
Belfast
Route
Depart
Return
Price
SouthamptonBelfast
SOU - BFS
SOUBFS
Southampton Eastleigh
Mon 13/4
12:25-13:40
Nonstop1h 15m
Belfast Intl
Fri 17/4
10:35-11:50
Nonstop1h 15m
£78
SouthamptonBelfast
SOU - BHD
SOUBHD
Southampton Eastleigh
Wed 21/1
08:55-10:35
Nonstop1h 40m
Belfast City
Wed 28/1
10:10-11:45
Nonstop1h 35m
£87
SouthamptonBelfast
SOU - BHD
SOUBHD
Southampton Eastleigh
Mon 13/4
16:45-18:20
Nonstop1h 35m
Belfast City
Sat 18/4
14:40-16:15
Nonstop1h 35m
£111
SouthamptonBelfast
SOU - BHD
SOUBHD
Southampton Eastleigh
Mon 13/4
16:45-18:20
Nonstop1h 35m
Belfast City
Fri 17/4
06:40-08:25
Nonstop1h 45m
£113
SouthamptonBelfast
SOU - BFS
SOUBFS
Southampton Eastleigh
Tue 14/4
13:25-07:05
1 stop17h 40m
Belfast Intl
Fri 17/4
10:35-11:50
Nonstop1h 15m
£117
SouthamptonBelfast
SOU - BHD
SOUBHD
Southampton Eastleigh
Fri 23/1
19:00-20:35
Nonstop1h 35m
Belfast City
Fri 30/1
16:55-18:30
Nonstop1h 35m
£123
SouthamptonBelfast
SOU - BFS
SOUBFS
Southampton Eastleigh
Sun 8/2
18:20-07:45
1 stop13h 25m
Belfast Intl
Sun 15/2
11:30-17:45
1 stop6h 15m
£139
SouthamptonBelfast
SOU - BFS
SOUBFS
Southampton Eastleigh
Mon 13/4
12:25-13:40
Nonstop1h 15m
Belfast Intl
Thu 16/4
21:40-07:25
1 stop9h 45m
£145
SouthamptonBelfast
SOU - BHD
SOUBHD
Southampton Eastleigh
Tue 14/4
12:35-16:50
1 stop4h 15m
Belfast City
Fri 17/4
10:55-12:35
Nonstop1h 40m
£161
SouthamptonBelfast
SOU - BHD
SOUBHD
Southampton Eastleigh
Wed 15/4
12:35-16:00
1 stop3h 25m
Belfast City
Fri 17/4
14:40-16:15
Nonstop1h 35m
£161
Flights are sorted by cheapest return flights first.
Deals found on 24/12
Showing 1-10 of 24 results
1
2
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Best time to book a flight from Portsmouth to Belfast
Have a flexible travel schedule? Discover the best time to fly to Belfast from Portsmouth 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 Portsmouth to Belfast
How far ahead should I book a flight from Portsmouth to Belfast?
Use this chart to determine the optimal time to book a return flight from Portsmouth to Belfast. Price data was last updated on 19 December 2025.
To ensure you get the cheapest price possible for a flight from Portsmouth to Belfast, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Portsmouth to Belfast?
Currently, January is the cheapest month in which you can book a flight from Portsmouth to Belfast (average of £14). Flying from Portsmouth to Belfast in August is currently the most expensive (average of £39). 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 P0R to BFS?
Find hourly flight availability from Portsmouth to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 December 2025.
One of the essential ways to save on airfare from Portsmouth to Belfast is to remain as flexible as possible. Flights that are at midday tend to be the most expensive. A flight in the evening could potentially save you up to 34% on airfare.
What is the cheapest day to fly from Portsmouth to Belfast?
Use this chart to determine the cheapest time to fly return from Portsmouth to Belfast. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their Portsmouth to Belfast flight should consider departing on Sunday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Belfast
Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated 26 December 2025.
See what other customers who have flown with Aer Lingus and easyJet from Portsmouth to Belfast have to say. You can also see how each airline compares 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 Portsmouth to Belfast. 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 Portsmouth to Belfast?
easyJet and Aer Lingus can get you from Portsmouth to Belfast in just under 1h 15m. Your travel time will be generally consistent. There are 326 mi between Portsmouth and Belfast. All flights are typically direct.
Can I find deals for flights from Portsmouth to Belfast that include hotel bookings?
Yes. In addition to deals on Portsmouth to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portsmouth to Belfast?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Belfast.
Can I find deals for business class flights from Portsmouth to Belfast?
Yes. Cheapflights offers flight deals from Portsmouth to Belfast 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 Portsmouth to Belfast?
Currently, January is the cheapest month in which you can book a flight from Portsmouth to Belfast (average of £14). Flying from Portsmouth to Belfast in August is currently the most expensive (average of £39). 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 Portsmouth to Belfast. 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 26 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 Portsmouth to Belfast?
Cheapflights helps you search for flights from Portsmouth to Belfast via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Belfast?
Cheapflights helps you find that perfect flight to Belfast from Portsmouth 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 Portsmouth to Belfast with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Portsmouth to Belfast flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Portsmouth to Belfast become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!
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