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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BHD
17 Jan — 24 Jan1
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 February, 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 18 December 2025.
Wed 31/1216:05SOU - BHD
2 stops17h 40mMultiple Airlines
Sun 4/106:50BHD - SOU
2 stops25h 55mMultiple Airlines
Deal found 16/12£198
Wed 31/1216:05SOU - BFS
2 stops16h 20mMultiple Airlines
Sun 4/122:05BFS - SOU
2 stops17h 30mMultiple Airlines
Deal found 15/12£203
Mon 22/1208:30SOU - BFS
2 stops23h 40mMultiple Airlines
Fri 26/1211:45BFS - SOU
1 stop5h 25mMultiple Airlines
Deal found 16/12£211
Mon 22/1212:05SOU - BFS
1 stop3h 30measyJet
Fri 26/1211:45BFS - SOU
1 stop5h 25measyJet
Deal found 16/12£241
Wed 31/1208:55SOU - BHD
Nonstop1h 40mAer Lingus
Sun 4/110:10BHD - SOU
Nonstop1h 40mAer Lingus
Deal found 16/12£259
Tue 23/1209:20SOU - BHD
1 stop26h 55mMultiple Airlines
Tue 30/1210:10BHD - SOU
1 stop22h 40mMultiple Airlines
Deal found 16/12£363
Wed 24/1208:35SOU - BHD
1 stop5h 15mBritish Airways
Fri 26/1216:55BHD - SOU
Nonstop1h 35mBritish Airways
Deal found 16/12£379
Tue 23/1219:00SOU - BHD
Nonstop1h 35mAer Lingus
Tue 30/1206:40BHD - SOU
Nonstop1h 45mAer Lingus
Deal found 16/12£387
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 18 December 2025.
Fri 12/612:20SOU - BFS
Nonstop1h 15measyJet
Mon 15/610:35BFS - SOU
Nonstop1h 15measyJet
Deal found 17/12£95
Fri 9/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Sun 11/110:10BHD - SOU
Nonstop1h 40mAer Lingus
Deal found 16/12£115
Sat 31/117:15SOU - BFS
1 stop4h 45mMultiple Airlines
Sat 7/207:00BFS - SOU
1 stop6h 10mMultiple Airlines
Deal found 16/12£170
Sat 28/215:45SOU - BHD
Nonstop1h 35mBritish Airways
Wed 4/306:40BHD - SOU
Nonstop1h 45mBritish Airways
Deal found 15/12£230
Fri 9/117:45SOU - BFS
1 stop13h 40measyJet
Sun 11/121:45BFS - SOU
1 stop13h 40measyJet
Deal found 16/12£147
Fri 9/120:10SOU - BHD
2 stops16h 40mMultiple Airlines
Sun 11/110:10BHD - SOU
Nonstop1h 40mMultiple Airlines
Deal found 16/12£171
Fri 12/608:00SOU - BHD
1 stop6h 30measyJet
Mon 15/612:25BHD - SOU
1 stop24h 25measyJet
Deal found 17/12£167
Fri 12/616:45SOU - BHD
Nonstop1h 35mAer Lingus
Mon 15/606:40BHD - SOU
Nonstop1h 45mAer Lingus
Deal found 17/12£193
Fri 30/108:10SOU - BFS
2 stops24h 15mMultiple Airlines
Sun 1/222:45BFS - SOU
2 stops20h 35mMultiple Airlines
Deal found 16/12£191
Tue 13/112:15SOU - BHD
Nonstop1h 35mBritish Airways
Tue 20/110:10BHD - SOU
Nonstop1h 35mBritish Airways
Deal found 16/12£230
Fri 9/108:10SOU - BFS
2 stops15h 15mMultiple Airlines
Sun 11/123:05BFS - SOU
2 stops16h 30mMultiple Airlines
Deal found 16/12£197
Fri 30/117:45SOU - BFS
1 stop13h 40measyJet
Sun 1/211:30BFS - SOU
1 stop6h 15measyJet
Deal found 16/12£198
Tue 13/112:15SOU - BHD
Nonstop1h 35mBritish Airways
Tue 27/110:10BHD - SOU
Nonstop1h 35mBritish Airways
Deal found 16/12£230
Wed 31/1216:05SOU - BHD
2 stops17h 40mMultiple Airlines
Sun 4/106:50BHD - SOU
2 stops25h 55mMultiple Airlines
Deal found 16/12£198
Mon 2/312:20SOU - BHD
Nonstop1h 35mBritish Airways
Thu 5/310:10BHD - SOU
Nonstop1h 40mBritish Airways
Deal found 15/12£230
Fri 12/608:00SOU - BFS
1 stop6h 00mMultiple Airlines
Mon 15/618:50BFS - SOU
2 stops18h 00mMultiple Airlines
Deal found 17/12£205
Fri 12/608:55SOU - BHD
Nonstop1h 40mMultiple Airlines
Mon 15/609:30BHD - SOU
1 stop11h 15mMultiple Airlines
Deal found 17/12£205
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 18 December 2025.
Tue 13/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Tue 20/106:40BHD - SOU
Nonstop1h 45mAer Lingus
Deal found 16/12£90
Fri 12/612:20SOU - BFS
Nonstop1h 15measyJet
Mon 15/610:35BFS - SOU
Nonstop1h 15measyJet
Deal found 17/12£95
Fri 9/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Sun 11/110:10BHD - SOU
Nonstop1h 40mAer Lingus
Deal found 16/12£115
Fri 30/112:20SOU - BHD
Nonstop1h 35mAer Lingus
Sun 1/216:55BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 16/12£150
Mon 5/112:20SOU - BHD
Nonstop1h 35mAer Lingus
Mon 5/116:55BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 17/12£162
Fri 12/616:45SOU - BHD
Nonstop1h 35mAer Lingus
Mon 15/606:40BHD - SOU
Nonstop1h 45mAer Lingus
Deal found 17/12£193
Tue 13/112:15SOU - BHD
Nonstop1h 35mBritish Airways
Tue 27/110:10BHD - SOU
Nonstop1h 35mBritish Airways
Deal found 16/12£230
Wed 14/112:15SOU - BHD
Nonstop1h 35mBritish Airways
Wed 28/110:10BHD - SOU
Nonstop1h 35mBritish Airways
Deal found 17/12£230
Wed 31/1208:55SOU - BHD
Nonstop1h 40mAer Lingus
Sun 4/110:10BHD - SOU
Nonstop1h 40mAer Lingus
Deal found 16/12£259
Last-minute flights from Portsmouth to Belfast
Discover last-minute flight deals from Portsmouth to Belfast. Data last updated 18 December 2025 and is based on user searches.
Mon 5/112:20SOU - BHD
Nonstop1h 35mAer Lingus
Mon 5/116:55BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 17/12£162
Tue 6/108:55SOU - BHD
Nonstop1h 40mMultiple Airlines
Tue 6/114:25BHD - SOU
1 stop3h 05mMultiple Airlines
Deal found 17/12£153
Fri 9/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Sun 11/110:10BHD - SOU
Nonstop1h 40mAer Lingus
Deal found 16/12£115
Fri 9/117:45SOU - BFS
1 stop13h 40measyJet
Sun 11/121:45BFS - SOU
1 stop13h 40measyJet
Deal found 16/12£147
Fri 9/120:10SOU - BHD
2 stops16h 40mMultiple Airlines
Sun 11/110:10BHD - SOU
Nonstop1h 40mMultiple Airlines
Deal found 16/12£171
Fri 9/108:10SOU - BFS
2 stops15h 15mMultiple Airlines
Sun 11/123:05BFS - SOU
2 stops16h 30mMultiple Airlines
Deal found 16/12£197
Tue 13/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Tue 20/106:40BHD - SOU
Nonstop1h 45mAer Lingus
Deal found 16/12£90
Fri 30/112:20SOU - BHD
Nonstop1h 35mAer Lingus
Sun 1/216:55BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 16/12£150
Fri 30/112:00SOU - BHD
1 stop5h 20mMultiple Airlines
Sun 1/210:10BHD - SOU
Nonstop1h 40mMultiple Airlines
Deal found 16/12£188
Fri 30/108:10SOU - BFS
2 stops24h 15mMultiple Airlines
Sun 1/222:45BFS - SOU
2 stops20h 35mMultiple Airlines
Deal found 16/12£191
Fri 30/117:35SOU - BHD
1 stop23h 15mKLM
Sun 1/217:20BHD - SOU
1 stop15h 30mKLM
Deal found 16/12£197
Sat 31/117:15SOU - BFS
1 stop4h 45mMultiple Airlines
Sat 7/207:00BFS - SOU
1 stop6h 10mMultiple Airlines
Deal found 16/12£170
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 18 December 2025.
Mon 26/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 17/12£41
Sun 15/218:20SOU - BFS
1 stop26h 00measyJet
Deal found 17/12£50
Fri 2/117:45SOU - BFS
1 stop13h 40measyJet
Deal found 16/12£61
Mon 26/112:05SOU - BHD
1 stop5h 10measyJet
Deal found 17/12£71
Mon 26/112:05SOU - BFS
1 stop19h 50measyJet
Deal found 17/12£73
Fri 2/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 16/12£84
Fri 2/117:45SOU - BHD
1 stop15h 35mMultiple Airlines
Deal found 16/12£99
Mon 26/108:30SOU - BFS
2 stops13h 40mMultiple Airlines
Deal found 17/12£103
Sun 15/220:10SOU - BFS
2 stops22h 45mMultiple Airlines
Deal found 17/12£105
Mon 26/108:30SOU - BHD
2 stops12h 40mMultiple Airlines
Deal found 17/12£114
Fri 2/108:40SOU - BFS
3 stops13h 20mMultiple Airlines
Deal found 16/12£235
Sun 15/212:15SOU - BHD
2 stops26h 30mLoganair
Deal found 17/12£335
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 18 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 18 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
Fri 12/6
12:20-13:35
Nonstop1h 15m
Belfast Intl
Mon 15/6
10:35-11:50
Nonstop1h 15m
£95
SouthamptonBelfast
SOU - BHD
SOUBHD
Southampton Eastleigh
Fri 9/1
19:00-20:35
Nonstop1h 35m
Belfast City
Sun 11/1
10:10-11:50
Nonstop1h 40m
£115
SouthamptonBelfast
SOU - BFS
SOUBFS
Southampton Eastleigh
Fri 9/1
17:45-07:25
1 stop13h 40m
Belfast Intl
Sun 11/1
21:45-11:25
1 stop13h 40m
£147
SouthamptonBelfast
SOU - BHD
SOUBHD
Southampton Eastleigh
Fri 12/6
08:00-14:30
1 stop6h 30m
Belfast City
Mon 15/6
12:25-12:50
1 stop24h 25m
£167
SouthamptonBelfast
SOU - BFS
SOUBFS
Southampton Eastleigh
Sat 31/1
17:15-22:00
1 stop4h 45m
Belfast Intl
Sat 7/2
07:00-13:10
1 stop6h 10m
£170
SouthamptonBelfast
SOU - BHD
SOUBHD
Southampton Eastleigh
Fri 9/1
20:10-12:50
2 stops16h 40m
Belfast City
Sun 11/1
10:10-11:50
Nonstop1h 40m
£171
SouthamptonBelfast
SOU - BFS
SOUBFS
Southampton Eastleigh
Fri 30/1
08:10-08:25
2 stops24h 15m
Belfast Intl
Sun 1/2
22:45-19:20
2 stops20h 35m
£191
SouthamptonBelfast
SOU - BHD
SOUBHD
Southampton Eastleigh
Fri 12/6
16:45-18:20
Nonstop1h 35m
Belfast City
Mon 15/6
06:40-08:25
Nonstop1h 45m
£193
SouthamptonBelfast
SOU - BFS
SOUBFS
Southampton Eastleigh
Fri 9/1
08:10-23:25
2 stops15h 15m
Belfast Intl
Sun 11/1
23:05-15:35
2 stops16h 30m
£197
SouthamptonBelfast
SOU - BFS
SOUBFS
Southampton Eastleigh
Fri 30/1
17:45-07:25
1 stop13h 40m
Belfast Intl
Sun 1/2
11:30-17:45
1 stop6h 15m
£198
Flights are sorted by cheapest return flights first.
Deals found on 17/12
Showing 1-10 of 29 results
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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 12 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 £40). 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 18 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 33% 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.
How much does it cost for a return flight from Portsmouth to Belfast?
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 18 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.
Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
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 £40). 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 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 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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