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Find cheap flights to Sonderborg in 2026/2027 from €221 This is the cheapest return flight found to Sonderborg from Ireland on FlightsFinder on September 17th 2026 at 10:12. This offer may no longer be available. Click the offer to check live prices & dates of travel.
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Our Flight Finder compares the cheapest flights to Sonderborg from the most established flight comparison sites.
Fly to Sonderborg and visit sites like Sønderborg Castle, Dybbøl Mill, Historiecenter Dybbøl Banke & Alssund.
1. Enter your search requirements for Sonderborg
2. Compare the best Sonderborg deals from top comparison engines
3. Book your Sonderborg flight at the cheapest price
These economy flights were found on FlightsFinder from Ireland to Sonderborg in the last few days. Prices subject to availability.
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These economy flights were found on FlightsFinder from Ireland to Sonderborg in the last few days. Prices subject to availability.
No flights found for this month.
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According to our data, October is on average the cheapest time to book flights to Sonderborg.
You can get flights from €221 return.
According to our data, September is on average the most expensive time to book flights to Sonderborg.
A return flight could set you back more than €341.
Located on the picturesque Danish island of Als, Sonderborg boasts a harmonious blend of rich history, stunning natural landscapes, and vibrant cultural experiences. This charming coastal city is renowned for its historic castle, which overlooks the tranquil waters of the Als Sound. Visitors can explore the lively streets lined with colorful houses, enjoy fresh seafood at local restaurants, or unwind on the sandy beaches. With its welcoming atmosphere and a perfect balance of tradition and modernity, Sonderborg offers a truly unforgettable Scandinavian experience for all who wander its cobbled streets.
A good price for a flight to Sonderborg is €199 - €243.
The popular airports near Sonderborg are Sonderborg Airport (SGD), Billund Airport (BLL), and Hamburg Airport (HAM).
The flight to Sonderborg (SGD) is roughly 1 hour 57 minutes and 656 miles (1,056 kilometres) from Dublin, Ireland - Dublin International Airport (DUB).
The best way is to compare flights to Sonderborg from leading comparison sites using our search engine dashboard.
We have currently found no direct flights to Sonderborg.
The main airport in Sonderborg is about 7 kilometers (4.3 miles) from the city centre.
Typically, flights are cheapest to Sonderborg 2 months before departure.
Studies show flights to Sonderborg are typically cheaper on Tuesdays and Wednesdays.
16.9 °C
Fri, 18 Sep 2026
Dublin, Ireland - Dublin International Airport (DUB) to Sonderborg (SGD)
Distance:
656 miles (1,056 kilometres)
Average flight time (direct 1 hour 57 minutes)
Shannon, Ireland - Shannon International Airport (SNN) to Sonderborg (SGD)
Distance:
777 miles (1,250 kilometres)
Average flight time (direct 2 hours 13 minutes)
Knock, Ireland - Ireland West Airport (NOC) to Sonderborg (SGD)
Distance:
749 miles (1,206 kilometres)
Average flight time (direct 2 hours 9 minutes)
Cork, Ireland - Cork International Airport (ORK) to Sonderborg (SGD)
Distance:
781 miles (1,257 kilometres)
Average flight time (direct 2 hours 14 minutes)
Kerry, Ireland - Kerry Airport (KIR) to Sonderborg (SGD)
Distance:
813 miles (1,308 kilometres)
Average flight time (direct 2 hours 18 minutes)
Donegal, Ireland - Donegal Airport (CFN) to Sonderborg (SGD)
Distance:
717 miles (1,153 kilometres)
Average flight time (direct 2 hours 5 minutes)
Waterford, Ireland - Waterford Airport (WAT) to Sonderborg (SGD)
Distance:
717 miles (1,153 kilometres)
Average flight time (direct 2 hours 5 minutes)
From Dublin (DUB), Ireland to Sonderborg, Denmark (SGD): €221
Depart: 13 Oct 2026 · Return: 18 Oct 2026 Price found 17 Sep 2026, 10:12
From Cork (ORK), Ireland to Sonderborg, Denmark (SGD): €249
Depart: 10 Dec 2026 · Return: 14 Dec 2026 Price found 08 Sep 2026, 15:08
From Shannon (SNN), Ireland to Sonderborg, Denmark (SGD): €249
Depart: 25 Oct 2026 · Return: 01 Nov 2026 Price found 10 Sep 2026, 21:22
From Farranfore (KIR), Ireland to Sonderborg, Denmark (SGD): €262
Depart: 10 Dec 2026 · Return: 14 Dec 2026 Price found 08 Sep 2026, 15:08
From Knock (NOC), Ireland to Sonderborg, Denmark (SGD): €372
Depart: 22 Sep 2026 · Return: 25 Sep 2026 Price found 15 Sep 2026, 10:41
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