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Cheap flights from Portsmouth to Helsinki from £198

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — HEL
22 Apr — 29 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to Helsinki

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Helsinki
Explore the most affordable flight options available from Portsmouth to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 March 2026.

Thu 7/517:20
SOU
-
HEL
1 stop5h 05m
KLM
Thu 14/518:25
HEL
-
SOU
1 stop16h 10m
KLM
Deal found 22/3£198
Sun 3/517:20
SOU
-
HEL
1 stop17h 45m
KLM
Sun 10/518:25
HEL
-
SOU
1 stop16h 10m
KLM
Deal found 19/3£290
Sun 3/518:20
SOU
-
HEL
2 stops15h 15m
Multiple Airlines
Sun 10/515:35
HEL
-
SOU
3 stops31h 10m
Multiple Airlines
Deal found 19/3£302
Thu 7/515:25
SOU
-
HEL
1 stop18h 10m
Multiple Airlines
Thu 14/520:30
HEL
-
SOU
2 stops25h 00m
Multiple Airlines
Deal found 22/3£308
Mon 23/314:35
SOU
-
HEL
1 stop5h 50m
Multiple Airlines
Thu 26/311:05
HEL
-
SOU
2 stops22h 35m
Multiple Airlines
Deal found 19/3£419

Find flight deals from Portsmouth to Helsinki

Keep the following information in mind while searching for Portsmouth to Helsinki flight deals. Data was last updated 23 March 2026.

Round-trip from

£198

Popular in

July

Cheapest in

February

Average price

£99
KLM
  • KLM
  • 7/5-14/5
  • 2 total stops
  • 21h 15m total
  • Portsmouth to Helsinki
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£36 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 March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Helsinki 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 23 March 2026.
Use the filters below to find and compare flights from Portsmouth to Helsinki that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Sun 3/5

17:20-12:55

2 stops17h 35m

Helsinki-Vantaa

Sun 10/5

18:25-08:35

1 stop16h 10m

£316

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Thu 7/5

06:50-00:10

2 stops15h 20m

Helsinki-Vantaa

Thu 14/5

07:05-08:45

3 stops27h 40m

£319

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Fri 18/9

06:50-22:30

1 stop13h 40m

Helsinki-Vantaa

Fri 2/10

08:20-20:45

1 stop14h 25m

£615

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Thu 16/4

15:15-13:00

1 stop19h 45m

Helsinki-Vantaa

Mon 20/4

19:30-17:40

2 stops24h 10m

£624

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Thu 23/4

06:50-12:15

2 stops27h 25m

Helsinki-Vantaa

Mon 27/4

19:30-17:40

2 stops24h 10m

£652
Fastest return journey

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Tue 21/4

12:35-22:35

1 stop8h 00m

Helsinki-Vantaa

Tue 28/4

16:05-20:50

1 stop6h 45m

£660

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Fri 19/6

06:50-22:35

1 stop13h 45m

Helsinki-Vantaa

Fri 3/7

16:05-20:45

1 stop6h 40m

£708

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Mon 20/4

12:35-22:35

1 stop8h 00m

Helsinki-Vantaa

Mon 4/5

14:05-08:25

2 stops20h 20m

£714
Cheapest one-way
Fastest single journey

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Tue 30/6

12:35-22:35

1 stop8h 00m

£243

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Tue 21/4

19:55-13:00

1 stop15h 05m

£331

Flights are sorted by cheapest return flights first.

Deals found on 20/3

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from Portsmouth to Helsinki

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

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

Currently, March is the cheapest month in which you can book a flight from Portsmouth to Helsinki (average of £42). Flying from Portsmouth to Helsinki in July is currently the most expensive (average of £104). 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 HEL?

Find hourly flight availability from Portsmouth to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 March 2026.

When flying from Portsmouth to Helsinki, 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 37% versus a flight at midday.

Weekly flight availability from Portsmouth to Helsinki

Explore weekly flight availability from Portsmouth to Helsinki. 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 23 March 2026.

The most flights from P0R to HEL are scheduled on a Wednesday (29 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (22 on average).

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Helsinki. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Helsinki from Portsmouth?

    If you book a flight to Helsinki from Portsmouth, you will be flying to Helsinki-Vantaa, which is the city’s only airport. Helsinki-Vantaa (HEL) is located 10.6 mi from the center of Helsinki. There are 0 flights from Portsmouth to Helsinki-Vantaa per day from 10 different airlines.

  • How long is the flight from Portsmouth to Helsinki?

    For as low as £615, British Airways can have you in Helsinki from Portsmouth in 13h 40m. There are 1200 mi between Portsmouth and Helsinki.

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

    Before booking your flight to Helsinki from Portsmouth, check out the most reliable airlines to get you to your destination on time: Japan Airlines (83%), Malaysia Airlines (83%), Vietnam Airlines( 82%).

  • What are the cheapest flights from Portsmouth to Helsinki?

    Looking for the cheapest flight from Portsmouth to Helsinki? While on average our users pay £1,209, our data indicates the cheapest price to be £138. The most popular route (Southampton Eastleigh - Helsinki-Vantaa), is priced around £198.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Portsmouth to Helsinki (average of £42). Flying from Portsmouth to Helsinki in July is currently the most expensive (average of £104). 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

Travelling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Espoo
Vantaa

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Top 10 airlines flying from Portsmouth to Helsinki

Discover the top 10 airlines that operate flights from Portsmouth to Helsinki. 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 23 March 2026.
AirlineCheapestAverageFlexibilityOn-time
RyanairCheapest£49Average£136FlexibilityNo cancel feeOn-timeN/A
Search Ryanair flights
NorwegianCheapest£60Average£187FlexibilityNo cancel feeOn-time74%
Search Norwegian flights
airBalticCheapest£77Average£207FlexibilityNo cancel feeOn-time87%
Search airBaltic flights
NorwegianCheapest£99Average£179FlexibilityNo cancel feeOn-timeN/A
Search Norwegian flights
FinnairCheapest£126Average£260FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Scandinavian AirlinesCheapest£128Average£157FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£130Average£451FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£155Average£266FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£166Average£249FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest£168Average£191FlexibilityNo cancel feeOn-time77%
Search Air France 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 Portsmouth to Helsinki?

Cheapflights helps you search for flights from Portsmouth to Helsinki 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 Helsinki?

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 Helsinki.

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

Certainly. Search results for flights to Helsinki from Portsmouth 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 Portsmouth to Helsinki 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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