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Cheap flights from Portsmouth to Finland from £419

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — HEL
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Portsmouth to Finland

Keep the following information in mind while searching for Portsmouth to Finland flight deals. Data was last updated 18 September 2025.

Round-trip from

£449

One-way from

£419

Popular in

July

Cheapest in

November

Average price

£142
1/11-8/11
  • 1/11-8/11
  • 4 total stops
  • 35h 00m total
  • Portsmouth to Finland
Search Deals
British Airways
  • British Airways
  • 3/10
  • 2 total stops
  • 16h 25m total
  • Portsmouth to Finland
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£31 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Portsmouth to Finland

Cheapest flights from Portsmouth to Finland
Explore the most affordable flight options available from Portsmouth to Finland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Sat 1/1109:40SOU - VAA
2 stops13h 25mMultiple Airlines
Sat 8/1117:35VAA - SOU
2 stops21h 35mMultiple Airlines
Deal found 17/9£449
Fri 31/1008:10SOU - KTT
3 stops27h 50mMultiple Airlines
Fri 7/1113:35KTT - SOU
3 stops25h 35mMultiple Airlines
Deal found 16/9£485
Mon 6/1016:50SOU - HEL
2 stops17h 30mBritish Airways
Fri 10/1006:50HEL - SOU
1 stop14h 35mBritish Airways
Deal found 17/9£1,167

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Finland 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 September 2025.
Use the filters below to find and compare flights from Portsmouth to Finland that are best for you.

Fly from

Portsmouth

Fly to

Finland

Route

Depart

Return

Price

SouthamptonVaasa

SOU - VAA

SOUVAA

Southampton Eastleigh

Sat 1/11

09:40-01:05

2 stops13h 25m

Vaasa

Sat 8/11

17:35-13:10

2 stops21h 35m

£449

SouthamptonKittilä

SOU - KTT

SOUKTT

Southampton Eastleigh

Fri 31/10

08:10-14:00

3 stops27h 50m

Kittilä

Fri 7/11

13:35-13:10

3 stops25h 35m

£485

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Thu 22/1

15:05-22:50

1 stop5h 45m

Helsinki-Vantaa

Sat 24/1

08:00-16:40

1 stop10h 40m

£584

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Fri 6/3

12:15-23:00

1 stop8h 45m

Helsinki-Vantaa

Sun 8/3

08:00-17:20

1 stop11h 20m

£586

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Mon 6/10

16:50-12:20

2 stops17h 30m

Helsinki-Vantaa

Fri 10/10

06:50-19:25

1 stop14h 35m

£1,167

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Fri 3/10

19:55-14:20

2 stops16h 25m

£419

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Best time to book a flight from Portsmouth to Finland

Have a flexible travel schedule? Discover the best time to fly to Finland 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 Finland

What is the cheapest month to book a flight from Portsmouth to Finland?

Currently, November is the cheapest month in which you can book a flight from Portsmouth to Finland (average of £92). Flying from Portsmouth to Finland in July is currently the most expensive (average of £305). 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 FI?

Find hourly flight availability from Portsmouth to Finland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Finland as you normally would.

Weekly flight availability from Portsmouth to Finland

Explore weekly flight availability from Portsmouth to Finland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 September 2025.

The most flights from P0R to FI0 are scheduled on a Monday (40 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (27 on average).

Reviews of airlines servicing Finland

Get insights into the airlines that provide service to Finland. 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 Finland. Reviews last updated 18 September 2025.
Get a feel of what it's like to fly with KLM from Portsmouth to Finland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,386 reviews
Check prices

Comfort

7.7

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.
KLM
7.8
Good
1,386 reviews
KLM
7.8
Good
1,386 reviews
Check prices

Comfort

7.7

Boarding

7.8

Food

7.3

Crew

8.4

Entertainment

7.2

Overall

7.8

Reviews

1 / 20
4.0
Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Finland. 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 Finland?

    British Airways can get you from Portsmouth to Finland in just under 5h 45m. Your travel time can differ by up to . Airlines will cover a distance of 1200 mi.

  • What are the most popular routes from Portsmouth to Finland?

    The most popular route from Portsmouth to Finland is Southampton Eastleigh - Helsinki-Vantaa. You may also consider Southampton Eastleigh - Kokkola Kruunupyy or Southampton Eastleigh - Kittilä.

  • What are the most reliable airlines from Portsmouth to Finland?

    Before booking your flight to Finland from Portsmouth, check out the most reliable airlines to get you to your destination on time: Japan Airlines (74%), Malaysia Airlines (73%), SriLankan Airlines( 72%).

  • What are the cheapest flights from Portsmouth to Finland?

    The cheapest flight price from Portsmouth to Finland is £125. On average you can expect to pay £999. The most popular route, (Southampton Eastleigh - Helsinki-Vantaa), can usually be booked for £429.

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

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

  • How can I find direct flights from Portsmouth to Finland?

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

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

    Yes. Cheapflights offers flight deals from Portsmouth to Finland 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 Finland?

    Currently, November is the cheapest month in which you can book a flight from Portsmouth to Finland (average of £92). Flying from Portsmouth to Finland in July is currently the most expensive (average of £305). 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.

See more FAQs

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Top 10 airlines flying from Portsmouth to Finland

Discover the top 10 airlines that operate flights from Portsmouth to Finland. 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 September 2025.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£42Average£106FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
airBalticCheapest£44Average£75FlexibilityNo cancel feeOn-time87%
Search airBaltic flights
RyanairCheapest£47Average£141FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
NorwegianCheapest£59Average£185FlexibilityNo cancel feeOn-time74%
Search Norwegian flights
easyJetCheapest£100Average£272FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Scandinavian AirlinesCheapest£117Average£229FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
KLMCheapest£133Average£239FlexibilityNo cancel feeOn-time75%
Search KLM flights
FinnairCheapest£139Average£330FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£148Average£422FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£156Average£280FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Portsmouth to Finland?

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portsmouth to Finland.

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

Need flexible booking options for your flight to Finland from Portsmouth? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for Portsmouth to Finland flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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