How long is the flight from Portsmouth to Helsinki?

For as low as £245, KLM can have you in Helsinki from Portsmouth in 17h 40m. There are 1200 mi between Portsmouth and Helsinki.

In terms of precipitation, rainfall in Helsinki ranges from 30.0 - 70.0 inches per month. August is typically the wettest month, when rainfall can reach 70.0 mm. February is typically the driest time to visit Helsinki when rainfall is around 30.0 mm.

If weather is an important factor for your trip to Helsinki, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of February, when temperatures are typically at their lowest (around -6.0 C).

What are the cheapest flights from Portsmouth to Helsinki?

Looking for the cheapest flight from Portsmouth to Helsinki? While on average our users pay £1,566, our data indicates the cheapest price to be £122. The most popular route (Southampton Eastleigh - Helsinki-Vantaa), is priced around £245.

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: Malaysia Airlines (83%), Japan Airlines (81%), LATAM Airlines( 79%).

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 9 different airlines.

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.

£235+ Cheap Flights from Portsmouth to Helsinki

Cheap flight deals from Portsmouth to Helsinki

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 11 September 2026.

Fri 23/1015:20 -

2 stops17h 55m

Thu 29/1022:05 -

2 stops15h 50m

Deal found 7/9£235

Sat 3/1017:20 -

1 stop5h 05m

Tue 13/1007:00 -

1 stop11h 50m

Deal found 11/9£265

Sat 24/1017:20 -

1 stop5h 05m

Sat 31/1014:05 -

1 stop20h 50m

Deal found 9/9£282

Sat 3/1009:20 -

2 stops22h 15m

Tue 13/1023:50 -

2 stops21h 40m

Deal found 11/9£296

Fri 23/1017:20 -

1 stop5h 05m

Thu 29/1018:20 -

1 stop15h 50m

Deal found 7/9£301

Fri 23/1015:20 -

2 stops17h 55m

Fri 30/1023:40 -

2 stops14h 15m

Deal found 8/9£306

Sat 24/1020:00 -

1 stop17h 45m

Sat 31/1018:20 -

2 stops16h 25m

Deal found 9/9£307

Fri 23/1017:20 -

1 stop5h 05m

Fri 30/1018:20 -

1 stop16h 35m

Deal found 8/9£340

Sun 27/1217:30 -

1 stop4h 50m

Wed 30/1218:20 -

1 stop15h 50m

Deal found 10/9£364

Find flight deals from Portsmouth to Helsinki

Round-trip from	£235
Popular in	June
Cheapest in	February
Average price	£156

23/10-29/10
4 total stops
33h 45m total
Portsmouth to Helsinki

Search Deals

Highest demand for flights based on searches. 30% potential increase in price (£55 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£7 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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 Southampton Eastleigh - HEL Helsinki-Vantaa

SOUHEL

Southampton Eastleigh

Sat 24/10

17:20-00:25

1 stop5h 05m

Helsinki-Vantaa

Sat 31/10

14:05-08:55

1 stop20h 50m

£282

SouthamptonHelsinki

SOU Southampton Eastleigh - HEL Helsinki-Vantaa

SOUHEL

Southampton Eastleigh

Fri 23/10

17:20-00:25

1 stop5h 05m

Helsinki-Vantaa

Thu 29/10

18:20-08:10

1 stop15h 50m

£301

Fastest return journey

SouthamptonHelsinki

SOU Southampton Eastleigh - HEL Helsinki-Vantaa

SOUHEL

Southampton Eastleigh

Tue 22/12

17:30-00:20

1 stop4h 50m

Helsinki-Vantaa

Tue 29/12

18:20-08:10

1 stop15h 50m

£307

SouthamptonHelsinki

SOU Southampton Eastleigh - HEL Helsinki-Vantaa

SOUHEL

Southampton Eastleigh

Sat 3/10

09:20-09:35

2 stops22h 15m

Helsinki-Vantaa

Tue 13/10

15:40-08:05

3 stops18h 25m

£319

SouthamptonHelsinki

SOU Southampton Eastleigh - HEL Helsinki-Vantaa

SOUHEL

Southampton Eastleigh

Fri 23/10

15:20-11:15

2 stops17h 55m

Helsinki-Vantaa

Thu 29/10

15:25-11:55

3 stops22h 30m

£321

SouthamptonHelsinki

SOU Southampton Eastleigh - HEL Helsinki-Vantaa

SOUHEL

Southampton Eastleigh

Thu 4/3

17:30-14:50

2 stops19h 20m

Helsinki-Vantaa

Mon 8/3

18:20-08:10

1 stop15h 50m

£332

SouthamptonHelsinki

SOU Southampton Eastleigh - HEL Helsinki-Vantaa

SOUHEL

Southampton Eastleigh

Sun 27/12

17:30-00:20

1 stop4h 50m

Helsinki-Vantaa

Wed 30/12

18:20-08:10

1 stop15h 50m

£364

SouthamptonHelsinki

SOU Southampton Eastleigh - HEL Helsinki-Vantaa

SOUHEL

Southampton Eastleigh

Mon 30/11

19:40-12:20

2 stops38h 40m

Helsinki-Vantaa

Wed 31/12

00:00-23:00

Nonstop0h 00m

£392

SouthamptonHelsinki

SOU Southampton Eastleigh - HEL Helsinki-Vantaa

SOUHEL

Southampton Eastleigh

Sun 29/11

19:40-21:10

2 stops23h 30m

Helsinki-Vantaa

Wed 31/12

00:00-23:00

Nonstop0h 00m

£392

SouthamptonHelsinki

SOU Southampton Eastleigh - HEL Helsinki-Vantaa

SOUHEL

Southampton Eastleigh

Tue 1/12

19:40-21:10

2 stops23h 30m

Helsinki-Vantaa

Wed 31/12

00:00-23:00

Nonstop0h 00m

£392

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 15 resultsSorted by cheapest first

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.

SOU-HEL

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

P0R-HEL

SOU-HEL

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

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 25% versus a flight at midday.

Weekly flight availability from Portsmouth to Helsinki

The most flights from P0R to HEL are scheduled on a Monday (27 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (19 on average).

Reviews of airlines servicing Helsinki

Check out reviews from past customers who have flown with KLM from Portsmouth to Helsinki to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

KLM

7.8

Good

1,576 reviews

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

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 9 different airlines.
How long is the flight from Portsmouth to Helsinki?
For as low as £245, KLM can have you in Helsinki from Portsmouth in 17h 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: Malaysia Airlines (83%), Japan Airlines (81%), LATAM Airlines( 79%).
What are the cheapest flights from Portsmouth to Helsinki?
Looking for the cheapest flight from Portsmouth to Helsinki? While on average our users pay £1,566, our data indicates the cheapest price to be £122. The most popular route (Southampton Eastleigh - Helsinki-Vantaa), is priced around £245.
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.

See more FAQs

Espoo

Vantaa

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Top 9 airlines flying from Portsmouth to Helsinki

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£51	Average£106	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Norwegian	Cheapest£63	Average£170	FlexibilityNo cancel fee	On-time74%	Search Norwegian flights
Norwegian	Cheapest£90	Average£222	FlexibilityNo cancel fee	On-timeN/A	Search Norwegian flights
Scandinavian Airlines	Cheapest£128	Average£179	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Finnair	Cheapest£139	Average£301	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Lufthansa	Cheapest£152	Average£261	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
KLM	Cheapest£163	Average£298	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Air France	Cheapest£186	Average£189	FlexibilityNo cancel fee	On-time77%	Search Air France flights
British Airways	Cheapest£221	Average£398	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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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Cheap flights from Portsmouth to Helsinki from £235

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to Helsinki

Cheapest flights from Portsmouth to HelsinkiExplore 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 11 September 2026.

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 11 September 2026.

Best flights from Portsmouth to HelsinkiDiscover carefully curated flight deals from Portsmouth to Helsinki that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Discover carefully curated flight deals from Portsmouth to Helsinki that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Last-minute flights from Portsmouth to HelsinkiDiscover last-minute flight deals from Portsmouth to Helsinki. Data last updated 11 September 2026 and is based on user searches.

Discover last-minute flight deals from Portsmouth to Helsinki. Data last updated 11 September 2026 and is based on user searches.

One-way flights from Portsmouth to HelsinkiSearch for one-way flight options from Portsmouth to Helsinki. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Search for one-way flight options from Portsmouth to Helsinki. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Find flight deals from Portsmouth to Helsinki

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portsmouth to Helsinki that are best for you.

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.

Cheapflights Insights

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 11 September 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 25% versus a flight at midday.

Weekly flight availability from Portsmouth to Helsinki

The most flights from P0R to HEL are scheduled on a Monday (27 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (19 on average).

Reviews of airlines servicing Helsinki

Check out reviews from past customers who have flown with KLM from Portsmouth to Helsinki to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

How long is the flight from Portsmouth to Helsinki?

What are the most reliable airlines from Portsmouth to Helsinki?

What are the cheapest flights from Portsmouth to Helsinki?

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

How can I find direct flights from Portsmouth to Helsinki?

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

Travelling to a place near Helsinki?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portsmouth to Helsinki

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Helsinki by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Finland

Book a non-stop flight to one of these other cities located in Finland.

Search flights from Portsmouth to Helsinki by cabin class

Find flights from Portsmouth to Helsinki, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Helsinki

Explore flights to Helsinki departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 11 September 2026.

Portsmouth and Helsinki flights

Browse other Portsmouth and Helsinki flight options. Last updated on 11 September 2026.

Popular flight searches

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Portsmouth to Helsinki flights

Consider these flights travelling from Portsmouth to Helsinki.

Top 9 airlines flying from Portsmouth to Helsinki

Fly with Cheapflights

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

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

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

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

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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 11 September 2026.

Best flights from Portsmouth to Helsinki
Discover carefully curated flight deals from Portsmouth to Helsinki that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 11 September 2026.

Last-minute flights from Portsmouth to Helsinki
Discover last-minute flight deals from Portsmouth to Helsinki. Data last updated 11 September 2026 and is based on user searches.

One-way flights from Portsmouth to Helsinki
Search for one-way flight options from Portsmouth to Helsinki. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.