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Cheap flights from Belfast City Airport to Portsmouth from £37

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 21/7. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — LHR
11 Jul — 18 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Belfast City to Portsmouth are usually found in March or October, booked 48 days in advance, depart on a Sunday or Tuesday and return on a Saturday

Cheap flight deals from Belfast City to Portsmouth

Enter your travel dates to find the best prices.

Cheapest flights from Belfast City to Portsmouth
Explore the most affordable flight options available from Belfast City to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 June 2026.

Thu 16/710:25
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Mon 20/708:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 10/6£74
Thu 8/1006:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Thu 15/1008:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 9/6£78
Sat 20/614:40
BHD
-
SOU
Nonstop1h 35m
Aer Lingus
Sat 27/619:40
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 7/6£83
Wed 22/717:25
BHD
-
SOU
Nonstop1h 35m
Aer Lingus
Sat 25/719:40
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 10/6£87
Tue 30/606:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Fri 3/708:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 6/6£90
Sat 12/910:25
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Sun 27/912:35
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 6/6£93
Fri 20/1106:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Sat 5/1208:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 8/6£96
Sun 26/710:25
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Wed 29/719:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 7/6£101
Sun 12/710:25
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Sun 19/708:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 10/6£108
Sat 6/617:30
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Sat 13/619:40
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 5/6£111

Find flight deals from Belfast City to Portsmouth

Keep the following information in mind while searching for Belfast City to Portsmouth flight deals. Data was last updated 11 June 2026.

Round-trip from

£74

One-way from

£37

Popular in

July

Cheapest in

March

Average price

£185
Aer Lingus
  • Aer Lingus
  • 16/7-20/7
  • Nonstop
  • 3h 20m total
  • Belfast to Portsmouth
Search Deals
Aer Lingus
  • Aer Lingus
  • 21/7
  • Nonstop
  • 1h 40m total
  • Belfast to Portsmouth
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£31 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast City 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 11 June 2026.
Use the filters below to find and compare flights from Belfast City Airport to Portsmouth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 16/7

10:25-12:05

Nonstop1h 40m

Southampton Eastleigh

Mon 20/7

08:55-10:35

Nonstop1h 40m

£81

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 20/11

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sat 5/12

08:55-10:35

Nonstop1h 40m

£96

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 30/6

18:35-19:30

2 stops24h 55m

Southampton Eastleigh

Fri 3/7

08:55-10:35

Nonstop1h 40m

£163

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 20/8

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Mon 24/8

12:35-14:10

Nonstop1h 35m

£231

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 25/7

10:25-12:05

Nonstop1h 40m

Southampton Eastleigh

Sat 8/8

08:55-10:35

Nonstop1h 40m

£231
Fastest return journey

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sun 26/7

17:25-19:00

Nonstop1h 35m

Southampton Eastleigh

Fri 31/7

12:35-14:10

Nonstop1h 35m

£232

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 8/10

09:50-16:50

1 stop7h 00m

Southampton Eastleigh

Thu 15/10

09:05-16:55

1 stop7h 50m

£238

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 12/9

10:25-12:05

Nonstop1h 40m

Southampton Eastleigh

Sat 26/9

06:45-12:25

2 stops29h 40m

£316

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 3/9

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Mon 7/9

12:20-13:50

1 stop25h 30m

£324
Cheapest one-way

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 21/7

10:25-12:05

Nonstop1h 40m

£37

Flights are sorted by cheapest return flights first.

Deals found on 8/6

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Best time to book a flight from Belfast City to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Belfast City 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 City Airport to Portsmouth

What is the cheapest time of day to fly from BHD to P0R?

Find hourly flight availability from Belfast City 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 11 June 2026.

When flying from Belfast City Airport to Portsmouth, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 57% versus a flight in the afternoon.

How much does it cost for a return flight from Belfast City Airport to Portsmouth?

What is the cheapest day to fly from Belfast City Airport to Portsmouth?

Use this chart to determine the cheapest time to fly return from Belfast City to Portsmouth. Price data was last updated on 8 June 2026.

Travellers seeking maximum savings on their Belfast City Airport to Portsmouth flight should consider departing on Friday evenings when fares are most often at their lowest. Monday evenings 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 11 June 2026.
Read through reviews of airlines operating flights from Belfast City Airport to Portsmouth, such as Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,603 reviews
Check prices

Crew

8.1

Entertainment

7.0

Boarding

7.4

Overall

7.3

Food

6.7

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

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.
Aer Lingus
7.3
Good
1,603 reviews
Aer Lingus
7.3
Good
1,603 reviews
Check prices

Crew

8.1

Entertainment

7.0

Boarding

7.4

Overall

7.3

Food

6.7

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

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 City 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 City Airport to Portsmouth?

    For as low as £81, Aer Lingus can have you in Portsmouth from Belfast City Airport in 1h 40m. Belfast City Airport and Portsmouth are separated by a distance of 316 mi. Most flights are nonstop.

  • What are the most reliable airlines from Belfast City Airport to Portsmouth?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Belfast City Airport to Portsmouth on time: LATAM Airlines (84%), American Airlines (83%), British Airways (82%).

  • What are the cheapest flights from Belfast City Airport to Portsmouth?

    Looking at all options, your cheapest flight can be booked for £68. While the most popular route (Belfast City - Southampton Eastleigh) can be booked for £78 on average, our data indicates £1,515 when flying from Belfast City Airport to Portsmouth.

  • Can I find deals for flights from Belfast City to Portsmouth that include hotel bookings?

    Yes. In addition to deals on Belfast City to Portsmouth flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast City to Portsmouth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast City to Portsmouth.

  • Can I find deals for business class flights from Belfast City to Portsmouth?

    Yes. Cheapflights offers flight deals from Belfast City 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Belfast City to Portsmouth

Discover the top 3 airlines that operate flights from Belfast City 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 11 June 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£36Average£100FlexibilityNo cancel feeOn-time86%
Search easyJet flights
British AirwaysCheapest£87Average£166FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£88Average£144FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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 City to Portsmouth?

Cheapflights makes it easy to find Belfast City to Portsmouth flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Belfast City to Portsmouth?

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Can Cheapflights find flights from Belfast City to Portsmouth with no change fees?

Yes! Cheapflights helps users easily find flights from Belfast City to Portsmouth with no change fees.

Can Cheapflights notify me if prices for flights from Belfast City to Portsmouth become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Portsmouth from Belfast City today and book when prices fit your budget.

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