How long is the flight from Portsmouth to Helsinki?

For as low as £576, British Airways can have you in Helsinki from Portsmouth in 26h 55m. 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 £1,043, our data indicates the cheapest price to be £125. The most popular route (Southampton Eastleigh - Helsinki-Vantaa), is priced around £221.

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 (74%), Malaysia Airlines (73%), LATAM Airlines( 71%).

What are the most popular airlines that fly from Portsmouth to Helsinki?

Finnair, British Airways and Norwegian are the most popular airlines when flying from Portsmouth to Helsinki.

How far in advance should I book a flight from Portsmouth to Helsinki?

Travelers have found it’s best to book a flight 50 days in advance to save up to 80% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 50 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portsmouth to Helsinki 1-2 weeks in advance for as low as £169, or £198 for flights within the next 24 hours.

What is the cheapest month to fly from Portsmouth to Helsinki?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, November can be a great choice for travel to Helsinki. Flights to Helsinki from Portsmouth in November are about £139 on average during November, but can be found for as low as £44.

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.

£291+ Flights from Portsmouth to Helsinki

Cheap flight deals from Portsmouth to Helsinki

Round-trip from	£291
Popular in	July
Cheapest in	November
Average price	£143

27/10-29/10
3 total stops
26h 30m total
Portsmouth to Helsinki

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. 5% potential price decrease (£5 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Portsmouth to Helsinki

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 16 September 2025.

Mon 27/1014:35SOU - HEL

1 stop5h 50mMultiple Airlines

Wed 29/1014:05HEL - SOU

2 stops20h 40mMultiple Airlines

Deal found 13/9£291

Mon 27/1018:10SOU - HEL

3 stops26h 55mBritish Airways

Wed 29/1019:35HEL - SOU

3 stops20h 35mBritish Airways

Deal found 13/9£576

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 16 September 2025.

Mon 27/1014:35SOU - HEL

1 stop5h 50mMultiple Airlines

Wed 29/1014:05HEL - SOU

2 stops20h 40mMultiple Airlines

Deal found 13/9£291

Mon 27/1018:10SOU - HEL

3 stops26h 55mBritish Airways

Wed 29/1019:35HEL - SOU

3 stops20h 35mBritish Airways

Deal found 13/9£576

Last-minute flights from Portsmouth to Helsinki
Discover last-minute flight deals from Portsmouth to Helsinki. Data last updated 16 September 2025 and is based on user searches.

Mon 27/1014:35SOU - HEL

1 stop5h 50mMultiple Airlines

Wed 29/1014:05HEL - SOU

2 stops20h 40mMultiple Airlines

Deal found 13/9£291

Mon 27/1018:10SOU - HEL

3 stops26h 55mBritish Airways

Wed 29/1019:35HEL - SOU

3 stops20h 35mBritish Airways

Deal found 13/9£576

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

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Mon 27/10

14:35-22:25

1 stop5h 50m

Helsinki-Vantaa

Wed 29/10

14:05-08:45

2 stops20h 40m

£291

SouthamptonHelsinki

SOU - HEL

SOUHEL

Southampton Eastleigh

Mon 27/10

18:10-23:05

3 stops26h 55m

Helsinki-Vantaa

Wed 29/10

19:35-14:10

3 stops20h 35m

£576

Flights are sorted by cheapest return flights first.

Deals found on 13/9

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, November is the cheapest month in which you can book a flight from Portsmouth to Helsinki (average of £92). Flying from Portsmouth to Helsinki 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 HEL?

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

What is the cheapest day to fly from Portsmouth to Helsinki?

Travellers seeking maximum savings on their Portsmouth to Helsinki flight should consider departing on Saturday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portsmouth to Helsinki

The most flights from P0R to HEL are scheduled on a Saturday (42 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (39 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

1,385 reviews

Check prices

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

1,385 reviews

KLM

7.8

Good

1,385 reviews

Check prices

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

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 £576, British Airways can have you in Helsinki from Portsmouth in 26h 55m. 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 (74%), Malaysia Airlines (73%), LATAM Airlines( 71%).
What are the cheapest flights from Portsmouth to Helsinki?
Looking for the cheapest flight from Portsmouth to Helsinki? While on average our users pay £1,043, our data indicates the cheapest price to be £125. The most popular route (Southampton Eastleigh - Helsinki-Vantaa), is priced around £221.
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, November is the cheapest month in which you can book a flight from Portsmouth to Helsinki (average of £92). Flying from Portsmouth to Helsinki 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

Espoo

Vantaa

Browse thousands of different options on Cheapflights for your next trip

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Other flights to Helsinki

Top 9 airlines flying from Portsmouth to Helsinki

Airline	Cheapest	Average	Flexibility	On-time
Ryanair	Cheapest£42	Average£106	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
airBaltic	Cheapest£44	Average£75	FlexibilityNo cancel fee	On-time87%	Search airBaltic flights
Ryanair	Cheapest£47	Average£154	FlexibilityNo cancel fee	On-timeN/A	Search Ryanair flights
Norwegian	Cheapest£59	Average£155	FlexibilityNo cancel fee	On-time74%	Search Norwegian flights
Scandinavian Airlines	Cheapest£121	Average£152	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
KLM	Cheapest£134	Average£240	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Finnair	Cheapest£139	Average£242	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
British Airways	Cheapest£149	Average£423	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£160	Average£237	FlexibilityNo cancel fee	On-time76%	Search Lufthansa 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 £291

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to Helsinki

Keep the following information in mind while searching for Portsmouth to Helsinki flight deals. Data was last updated 16 September 2025.

Round-trip from

Popular in

Cheapest in

Average price

Find 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 16 September 2025.

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 16 September 2025.

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

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?

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 16 September 2025.

What is the cheapest day to fly from Portsmouth to Helsinki?

Use this chart to determine the cheapest time to fly return from Portsmouth to Helsinki. Price data was last updated on 6 October 2024.

Weekly flight availability from Portsmouth to Helsinki

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

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?

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?

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

Travelling to a place near Helsinki?

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Alternative routes for Portsmouth to Helsinki

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

Top 9 airlines flying from Portsmouth to Helsinki

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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?

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 16 September 2025.