$182 Cheap Flights from Sonderborg (SGD) to Helsinki (HEL)

View $182 flight on Thu, May 22, 2025Opens in a new window

Popular airlines from Sonderborg (SGD) to Helsinki-Vantaa Airport (HEL)

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Cheap Flights from Sonderborg to Helsinki (SGD-HEL)

Prices were available within the past 7 days and start at $182 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Sonderborg (SGD) to Helsinki (HEL)
Origin airport
Sonderborg
Destination airport
Vantaa
Distance
669 mi

Sonderborg to Helsinki Flights

The cheapest times to fly from Sonderborg to Helsinki

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 Sonderborg to Helsinki are during the month of . You can find some of the cheapest flights from Sonderborg to Helsinki with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sonderborg to Helsinki

Sunday is one of the best days to book for cheap flights from Sonderborg to Helsinki: 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 Sonderborg to Helsinki

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 Sonderborg to Helsinki in 2025. You can also book with separate airlines for your outbound and return journeys, from $182 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 Sonderborg to Helsinki 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 Sonderborg to Helsinki 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

Is it cheaper to buy a plane ticket from Sonderborg Airport (SGD) to HEL last minute?
Booking your trip from Sonderborg Airport (SGD) to Vantaa Airport (HEL) at the last minute could save you some dough if you strike it lucky and find a good deal. However, tickets usually don’t drop in price as the date of departure nears. If you choose to wait, flights could also be booked up or the best seats gone (because no one wants the middle seat). If you’d rather play it safe, book well ahead of the date you want to leave. Remember that some of the most awesome deals can be found up to a year in advance. If your preferred carrier hasn’t released tickets yet, check back regularly as offers are updated on Expedia all the time.
What airports do you fly into for Helsinki from Sønderborg?
With Vantaa Airport (HEL), Helsinki-Malmi Airport (HEM) and Lahti (QLF-Lahti Vesivehmaa) to select from, getting from Sønderborg to Helsinki is a breeze. The city’s main hub, Vantaa Airport (HEL), is approximately 10 mi north of the downtown area. Along with the price of tickets, consider factors like transportation options from the airport and the distance to your hotel before making your choice. Get your Helsinki trip off to a terrific start by visiting Helsinki Cathedral and Senate Square.
Can I change the date of my flight from Sonderborg Airport (SGD) to Helsinki Airport?
It’s a piece of cake to make amendments to your Sonderborg Airport to Helsinki Airport trip yourself. Just log in to the Expedia Trips portal and hit “change flight.” Browse around for new flights and choose the one that fits your plans. You’ll see an estimate of your flight change cost, if applicable. You can also head to our Customer Service portal to connect with our Virtual Agent and get answers to all your questions.

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