Skyscanner

Cheap Flights to Siegen

Travellers and cabin class

Compare Siegen flights across hundreds of providers

Find the cheapest month or even day of the year to fly to Siegen

Book the best Siegen fare with no extra fees

Flight deals to Siegen

Looking for a cheap last-minute deal or the best return flight to Siegen? Find our lowest prices on one-way and return tickets to the easiest airport right here.
Cologne.30 € per passenger.Departing Sun, 13 Jul, returning Sun, 27 Jul.Return flight with Ryanair.Outbound direct flight with Ryanair departs from Ireland West Knock on Sun, 13 Jul, arriving in Cologne.Inbound direct flight with Ryanair departs from Cologne on Sun, 27 Jul, arriving in Ireland West Knock.Price includes taxes and charges.From 30 €, select.
Cologne.41 € per passenger.Departing Sun, 17 Aug, returning Thu, 21 Aug.Return flight with Ryanair.Outbound direct flight with Ryanair departs from Ireland West Knock on Sun, 17 Aug, arriving in Cologne.Inbound direct flight with Ryanair departs from Cologne on Thu, 21 Aug, arriving in Ireland West Knock.Price includes taxes and charges.From 41 €, select.
Cologne.42 € per passenger.Departing Thu, 17 Jul, returning Thu, 7 Aug.Return flight with Ryanair.Outbound direct flight with Ryanair departs from Ireland West Knock on Thu, 17 Jul, arriving in Cologne.Inbound direct flight with Ryanair departs from Cologne on Thu, 7 Aug, arriving in Ireland West Knock.Price includes taxes and charges.From 42 €, select.
Cologne.42 € per passenger.Departing Sun, 21 Sep, returning Thu, 25 Sep.Return flight with Ryanair.Outbound direct flight with Ryanair departs from Ireland West Knock on Sun, 21 Sep, arriving in Cologne.Inbound direct flight with Ryanair departs from Cologne on Thu, 25 Sep, arriving in Ireland West Knock.Price includes taxes and charges.From 42 €, select.
Cologne.42 € per passenger.Departing Thu, 28 Aug, returning Thu, 11 Sep.Return flight with Ryanair.Outbound direct flight with Ryanair departs from Ireland West Knock on Thu, 28 Aug, arriving in Cologne.Inbound direct flight with Ryanair departs from Cologne on Thu, 11 Sep, arriving in Ireland West Knock.Price includes taxes and charges.From 42 €, select.
Cologne.44 € per passenger.Departing Sun, 15 Jun, returning Thu, 26 Jun.Return flight with Ryanair.Outbound direct flight with Ryanair departs from Ireland West Knock on Sun, 15 Jun, arriving in Cologne.Inbound direct flight with Ryanair departs from Cologne on Thu, 26 Jun, arriving in Ireland West Knock.Price includes taxes and charges.From 44 €, select.
Cologne.51 € per passenger.Departing Wed, 1 Oct, returning Wed, 15 Oct.Return flight with Ryanair.Outbound direct flight with Ryanair departs from Dublin on Wed, 1 Oct, arriving in Cologne.Inbound direct flight with Ryanair departs from Cologne on Wed, 15 Oct, arriving in Dublin.Price includes taxes and charges.From 51 €, select.
Cologne.60 € per passenger.Departing Wed, 24 Sep, returning Wed, 8 Oct.Return flight with Ryanair.Outbound direct flight with Ryanair departs from Dublin on Wed, 24 Sep, arriving in Cologne.Inbound direct flight with Ryanair departs from Cologne on Wed, 8 Oct, arriving in Dublin.Price includes taxes and charges.From 60 €, select.

Flying to Siegen

The things to know before you go.
Fly intoCologne Airport
Distance to Siegen61.8 km
Average flight time1 hr, 59 mins
Most popular airlineRyanair
Cheapest flight found30 €
Cheapest month to flyJuly

Find the cheapest time to fly to Siegen

Flexible on travel dates? Find the cheapest month – or even day – to catch a flight to Siegen.
Jun
from 44 €
Jul
from 30 €
Aug
from 41 €
Sep
from 42 €
Oct
from 51 €
Nov
from 86 €
Dec
from 127 €
Jan
from 86 €
Feb
from 86 €
Mar
from 94 €
Apr
from 164 €
May
from 152 €

Frequently asked questions

The average flight time to Siegen is 2 hours and 2 minutes. We've calculated this based on journeys to Cologne Airport.
There are 2 airports near Siegen: Cologne Airport and Dortmund Airport.
Ryanair and Malta Air both offer direct flights to Cologne Airport.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Siegen but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
Yes – you can fly direct to Cologne Airport and the average flight time is 1 hour and 58 minutes.
The best price we found for a return flight to Siegen is 30 €. This is an estimate based on information collected from different airlines and travel providers flying to Cologne Airport over the last 4 days and is subject to change and availability.
The cheapest airport near Siegen is Cologne – which is 61.8 km away from the centre of Siegen. We've found flights into this airport from 30 €.
After crunching the numbers on our flight calendar, we found that the cheapest date to fly to Cologne Airport, the closest airport to Siegen is Sunday, 13 July 2025.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Siegen is around 40 days in advance, so don’t leave your flight to the last minute.
Cologne Airport is 61.8km from Siegen and Dortmund Airport is 76.2km from Siegen.
The average temperature in Siegen in June is around 15°C. The warmest month in Siegen is typically July, which averages 22°C. The coolest month is January, with temperatures averaging -3°C. The rainiest month is December, and it usually rains the least in April.
Currently, the cheapest airline that flies to Cologne Airport - the closest airport to Siegen - Ryanair.
Cologne Airport is 61.8km from Siegen which is approximately 1 hour and 9 minutes driving time. Check out the options for car hire at Cologne Airport.
Dortmund Airport is 76.2km from Siegen which is approximately 1 hour and 33 minutes driving time. Check out the options for car hire at Dortmund Airport.

Plan your trip to Siegen