$252 Cheap Flights from Helsinki (HEL) to Cardiff (CWL)

View $252 flight on Mon, Jul 21, 2025Opens in a new window

Popular airlines from Helsinki-Vantaa Airport (HEL) to Cardiff International Airport (CWL)

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Cheap Flights from Helsinki to Cardiff (HEL-CWL)

Prices were available within the past 7 days and start at $252 for one-way flights and $671 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Finnair
Wed, Sep 3 - Wed, Sep 10
HEL
Helsinki
CWL
Cardiff
$671 Roundtrip, found 3 days ago
$671
Roundtrip
found 3 days ago
Select Finnair flight, departing Wed, Sep 3 from Helsinki to Cardiff, returning Wed, Sep 10, priced at $671 found 3 days ago
Finnair
Fri, Aug 22 - Sun, Aug 24
HEL
Helsinki
CWL
Cardiff
$678 Roundtrip, found 6 hours ago
$678
Roundtrip
found 6 hours ago
Select Finnair flight, departing Fri, Aug 22 from Helsinki to Cardiff, returning Sun, Aug 24, priced at $678 found 6 hours ago
Finnair
Fri, Aug 22 - Sun, Aug 24
HEL
Helsinki
CWL
Cardiff
$701 Roundtrip, found 6 hours ago
$701
Roundtrip
found 6 hours ago
Select Finnair flight, departing Fri, Aug 22 from Helsinki to Cardiff, returning Sun, Aug 24, priced at $701 found 6 hours ago
Finnair
Wed, Sep 3 - Wed, Sep 10
HEL
Helsinki
CWL
Cardiff
$763 Roundtrip, found 3 days ago
$763
Roundtrip
found 3 days ago
Select Finnair flight, departing Wed, Sep 3 from Helsinki to Cardiff, returning Wed, Sep 10, priced at $763 found 3 days ago
Finnair
Fri, Aug 22 - Sun, Aug 24
HEL
Helsinki
CWL
Cardiff
$771 Roundtrip, found 6 hours ago
$771
Roundtrip
found 6 hours ago
Select Finnair flight, departing Fri, Aug 22 from Helsinki to Cardiff, returning Sun, Aug 24, priced at $771 found 6 hours ago
Finnair
Fri, Aug 22 - Sun, Aug 24
HEL
Helsinki
CWL
Cardiff
$794 Roundtrip, found 6 hours ago
$794
Roundtrip
found 6 hours ago
Select Finnair flight, departing Fri, Aug 22 from Helsinki to Cardiff, returning Sun, Aug 24, priced at $794 found 6 hours ago
Flights from Helsinki (HEL) to Cardiff (CWL)
Origin airport
Vantaa
Destination airport
Cardiff Intl.
Roundtrip price
$670
Distance
1244 mi

Helsinki to Cardiff Flights

The cheapest times to fly from Helsinki to Cardiff

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Helsinki to Cardiff are during the month of September. You can find some of the cheapest flights from Helsinki to Cardiff with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Helsinki to Cardiff

Sunday is one of the best days to book for cheap flights from Helsinki to Cardiff: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Helsinki to Cardiff

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Helsinki to Cardiff in 2025. You can also book with separate airlines for your outbound and return journeys, from $252 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Helsinki to Cardiff flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Helsinki to Cardiff airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Vantaa Airport (HEL) to Cardiff Intl. Airport (CWL) cost?
Discover the latest flight deals from HEL to CWL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from HEL to CWL?
The cheapest flights from HEL to CWL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from HEL to CWL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from HEL to CWL. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Vantaa Airport (HEL) to Cardiff Intl. Airport (CWL)?
You’ll have to hop on a flight with a layover if you’re traveling from Vantaa Airport (HEL) to Cardiff Intl. Airport (CWL). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from HEL to CWL?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on a number of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Vantaa Airport (HEL) to Cardiff Intl. Airport (CWL)?
Select a flight from Vantaa Airport (HEL) to Cardiff Intl. Airport (CWL) that takes off before 3 PM to reduce the risk of cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Vantaa Airport (HEL) to Cardiff Intl. Airport (CWL) last-minute?
Holding off until right before your break to book a ticket from HEL to CWL generally means paying more. While it’s possible to find some last-minute deals, there’s no guarantee. Keep your travel schedule open to boost your chances of landing a bargain.
Is it cheaper to book a HEL to CWL flight and hotel package?
Compared with arranging hotels and flights separately, booking a HEL to CWL flight and hotel package with Expedia could lead to significant savings. What’s more, managing everything in one place takes the hassle out of planning your trip. Just secure your flights and select from our extensive range of hotels, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Vantaa Airport (HEL) to Cardiff Intl. Airport (CWL)?
In most instances, you can reschedule or cancel your HEL to CWL flight. However, there may be additional charges, especially if you booked more than 24 hours ago. Check your itinerary for the airline’s fees and policies on flight changes, or if you’d like more details, visit our Customer Service portal.

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*Available to One Key members.