$167 Cheap Flights from Copenhagen (CPH) to Sonderborg (SGD)

View $167 flight on Mon, Aug 11, 2025Opens in a new window

Popular airlines from Copenhagen Airport, Kastrup (CPH) to Sonderborg (SGD)

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Cheap Flights from Copenhagen to Sonderborg (CPH-SGD)

Prices were available within the past 7 days and start at $167 for one-way flights and $303 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hahn Air Technologies
Mon, Sep 15 - Mon, Sep 22
CPH
Copenhagen
SGD
Sønderborg
$303 Roundtrip, found 1 day ago
$303
Roundtrip
found 1 day ago
Select Hahn Air Technologies flight, departing Mon, Sep 15 from Copenhagen to Sønderborg, returning Mon, Sep 22, priced at $303 found 1 day ago
Hahn Air Technologies
Fri, Aug 15 - Tue, Aug 19
CPH
Copenhagen
SGD
Sønderborg
$304 Roundtrip, found 1 day ago
$304
Roundtrip
found 1 day ago
Select Hahn Air Technologies flight, departing Fri, Aug 15 from Copenhagen to Sønderborg, returning Tue, Aug 19, priced at $304 found 1 day ago
Hahn Air Technologies
Wed, Aug 27 - Thu, Aug 28
CPH
Copenhagen
SGD
Sønderborg
$306 Roundtrip, found 6 days ago
$306
Roundtrip
found 6 days ago
Select Hahn Air Technologies flight, departing Wed, Aug 27 from Copenhagen to Sønderborg, returning Thu, Aug 28, priced at $306 found 6 days ago
Hahn Air Technologies
Thu, Aug 7 - Thu, Aug 14
CPH
Copenhagen
SGD
Sønderborg
$307 Roundtrip, found 2 days ago
$307
Roundtrip
found 2 days ago
Select Hahn Air Technologies flight, departing Thu, Aug 7 from Copenhagen to Sønderborg, returning Thu, Aug 14, priced at $307 found 2 days ago
Hahn Air Technologies
Thu, Sep 4 - Wed, Sep 10
CPH
Copenhagen
SGD
Sønderborg
$309 Roundtrip, found 3 days ago
$309
Roundtrip
found 3 days ago
Select Hahn Air Technologies flight, departing Thu, Sep 4 from Copenhagen to Sønderborg, returning Wed, Sep 10, priced at $309 found 3 days ago
Hahn Air Technologies
Wed, Sep 3 - Sun, Sep 7
CPH
Copenhagen
SGD
Sønderborg
$310 Roundtrip, found 5 days ago
$310
Roundtrip
found 5 days ago
Select Hahn Air Technologies flight, departing Wed, Sep 3 from Copenhagen to Sønderborg, returning Sun, Sep 7, priced at $310 found 5 days ago
Hahn Air Technologies
Thu, Aug 7 - Thu, Aug 14
CPH
Copenhagen
SGD
Sønderborg
$323 Roundtrip, found 2 days ago
$323
Roundtrip
found 2 days ago
Select Hahn Air Technologies flight, departing Thu, Aug 7 from Copenhagen to Sønderborg, returning Thu, Aug 14, priced at $323 found 2 days ago
0
Flights from Copenhagen (CPH) to Sonderborg (SGD)
Origin airport
Kastrup
Destination airport
Sonderborg
Airlines serving
Hahn Air Technologies
Roundtrip price
$302
Distance
121 mi

Copenhagen to Sonderborg Flights

The cheapest times to fly from Copenhagen to Sonderborg

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

 

The best time to book a flight from Copenhagen to Sonderborg

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

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 Copenhagen to Sonderborg in 2025. You can also book with separate airlines for your outbound and return journeys, from $167 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 Copenhagen to Sonderborg 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 Copenhagen to Sonderborg 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 Kastrup Airport (CPH) to Sonderborg Airport (SGD) cost?
You can book cheap return flights starting from $306 from Kastrup Airport (CPH) to Sonderborg Airport (SGD). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Hahn Air flight leaving CPH on August 1 2025 and touching down at SGD. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from CPH to SGD?
The cheapest flights from CPH to SGD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Kastrup Airport (CPH) to Sonderborg Airport (SGD)?
Fly directly from Kastrup Airport (CPH) to Sonderborg Airport (SGD) on an Air Alsie flight.
What is the cheapest airline that flies from CPH to SGD?
Right now, the cheapest airline operating one-way flights from CPH to SGD is Hahn Air. You can book a seat on this route from $168. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from CPH on August 28 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Kastrup Airport (CPH) to Sonderborg Airport (SGD)?
Daily, an average of 3 nonstop flights take off from Kastrup Airport (CPH) to Sonderborg Airport (SGD). Choose the departure time that fits your schedule best.
What are the most popular departure times for flights from Kastrup Airport (CPH) to Sonderborg Airport (SGD)?
Flights between CPH and SGD are busiest at 8 AM. If you'd like a quieter experience and potentially cheaper prices, look for a time when demand is lower.
What day of the week has the most flights from CPH to SGD?
Depart on a Tuesday if you're looking for the best choice of flights from Kastrup Airport (CPH) to Sonderborg Airport (SGD).
What is the earliest flight from Kastrup Airport (CPH) to Sonderborg Airport (SGD)?
The first flight of the day jetting off from Kastrup Airport (CPH) is at around 8:15AM UTC+1. Board this plane and you'll reach Sonderborg Airport (SGD) at approximately 9:00AM UTC+1. The entire trip takes 45m.
How long does it take to fly from Kastrup Airport (CPH) to Sonderborg Airport (SGD)?
Flights from CPH to SGD have an average travel time of 45 minutes. The distance between the two is 120 mi.
What is the best time to fly from Kastrup Airport (CPH) to Sonderborg Airport (SGD)?
Opt for a flight from Kastrup Airport (CPH) to Sonderborg Airport (SGD) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this hour 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.
What airports do you fly into for Sønderborg from Kastrup Airport (CPH)?
Sonderborg Airport (SGD) is the only airport in Sønderborg with direct flights from Kastrup Airport (CPH). Browse the options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Kastrup Airport (CPH) to Sonderborg Airport (SGD) last-minute?
Booking your ticket from CPH to SGD shortly before your trip is usually more expensive. But if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a CPH to SGD flight and hotel package?
Compared with arranging hotels and flights separately, booking a CPH to SGD flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place takes the hassle out of planning your trip. Just secure your flights and select from our wide range of stays, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Kastrup Airport (CPH) to Sonderborg Airport (SGD)?
If you reserved your CPH to SGD flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.