$25 Cheap Flights from Cologne (CGN) to Dublin (DUB)

View $25 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from Cologne - Bonn Airport (CGN) to Dublin Airport (DUB)

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Cheap Flights from Cologne to Dublin (CGN-DUB)

Prices were available within the past 7 days and start at $25 for one-way flights and $66 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Ryanair
Wed, Aug 20 - Wed, Aug 27
CGN
Cologne
DUB
Dublin
$66 Roundtrip, found 21 hours ago
$66
Roundtrip
found 21 hours ago
Select Ryanair flight, departing Wed, Aug 20 from Cologne to Dublin, returning Wed, Aug 27, priced at $66 found 21 hours ago
Ryanair
Thu, Nov 13 - Sun, Nov 16
CGN
Cologne
DUB
Dublin
$81 Roundtrip, found 3 days ago
$81
Roundtrip
found 3 days ago
Select Ryanair flight, departing Thu, Nov 13 from Cologne to Dublin, returning Sun, Nov 16, priced at $81 found 3 days ago
Ryanair
Sun, Sep 28 - Wed, Oct 1
CGN
Cologne
DUB
Dublin
$104 Roundtrip, found 6 days ago
$104
Roundtrip
found 6 days ago
Select Ryanair flight, departing Sun, Sep 28 from Cologne to Dublin, returning Wed, Oct 1, priced at $104 found 6 days ago
Ryanair
Wed, Aug 13 - Fri, Aug 22
CGN
Cologne
DUB
Dublin
$141 Roundtrip, found 16 hours ago
$141
Roundtrip
found 16 hours ago
Select Ryanair flight, departing Wed, Aug 13 from Cologne to Dublin, returning Fri, Aug 22, priced at $141 found 16 hours ago
Ryanair
Sun, Aug 3 - Wed, Aug 6
CGN
Cologne
DUB
Dublin
$157 Roundtrip, found 2 days ago
$157
Roundtrip
found 2 days ago
Select Ryanair flight, departing Sun, Aug 3 from Cologne to Dublin, returning Wed, Aug 6, priced at $157 found 2 days ago
Ryanair
Fri, Aug 1 - Sun, Aug 3
CGN
Cologne
DUB
Dublin
$197 Roundtrip, found 2 days ago
$197
Roundtrip
found 2 days ago
Select Ryanair flight, departing Fri, Aug 1 from Cologne to Dublin, returning Sun, Aug 3, priced at $197 found 2 days ago
Ryanair
Wed, Aug 6 - Sun, Aug 10
CGN
Cologne
DUB
Dublin
$217 Roundtrip, found 1 day ago
$217
Roundtrip
found 1 day ago
Select Ryanair flight, departing Wed, Aug 6 from Cologne to Dublin, returning Sun, Aug 10, priced at $217 found 1 day ago
Lufthansa
Thu, Jul 24 - Mon, Jul 28
CGN
Cologne
DUB
Dublin
$221 Roundtrip, found 12 hours ago
$221
Roundtrip
found 12 hours ago
Select Lufthansa flight, departing Thu, Jul 24 from Cologne to Dublin, returning Mon, Jul 28, priced at $221 found 12 hours ago
British Airways
Wed, Aug 13 - Fri, Aug 22
CGN
Cologne
DUB
Dublin
$304 Roundtrip, found 16 hours ago
$304
Roundtrip
found 16 hours ago
Select British Airways flight, departing Wed, Aug 13 from Cologne to Dublin, returning Fri, Aug 22, priced at $304 found 16 hours ago
Swiss International Air Lines
Thu, Jul 24 - Mon, Jul 28
CGN
Cologne
DUB
Dublin
$428 Roundtrip, found 12 hours ago
$428
Roundtrip
found 12 hours ago
Select Swiss International Air Lines flight, departing Thu, Jul 24 from Cologne to Dublin, returning Mon, Jul 28, priced at $428 found 12 hours ago

Find the cheapest month to fly from Cologne (CGN) to Dublin (DUB)

May is typically the cheapest month to fly

From $73 - $314 per traveler.

Graph displaying average flight prices per month

Flights from Cologne (CGN) to Dublin (DUB)
Origin airport
Cologne - Bonn
Destination airport
Dublin
Airlines serving
British Airways, Lufthansa, Ryanair, Swiss International Air Lines
Roundtrip price
$65
Distance
591 mi
Average flight time
1 hour 55 mins

Cologne to Dublin Flights

The cheapest times to fly from Cologne to Dublin

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

 

The best time to book a flight from Cologne to Dublin

Sunday is one of the best days to book for cheap flights from Cologne to Dublin: 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 Cologne to Dublin

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 Cologne to Dublin in 2025. You can also book with separate airlines for your outbound and return journeys, from $25 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 Cologne to Dublin 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 Cologne to Dublin 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 Cologne - Bonn Airport (CGN) to Dublin Airport (DUB) cost?
Discover the latest flight deals from CGN to DUB 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 CGN to DUB?
The cheapest flights from CGN to DUB 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 Cologne - Bonn Airport (CGN) to Dublin Airport (DUB)?
Although Cologne (CGN-Cologne - Bonn) doesn't offer any direct flights to Dublin Airport (DUB), other airports have nonstop options. Flying from Duesseldorf Intl. Airport (DUS) will get you to Dublin without any layovers.
What is the cheapest airline that flies from CGN to DUB?
Travel from CGN to DUB with Ryanair. This airline currently offers the cheapest one-way fare for this route, starting from $41. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from CGN on August 6 2025. Prices were last updated on July 7 2025 and have not changed since.
How many flights per day from Cologne - Bonn Airport (CGN) to Dublin Airport (DUB)?
On average, Cologne - Bonn Airport (CGN) offers 2 nonstop flights to Dublin Airport (DUB) weekly. If you're looking for more options, take advantage of Expedia's filters to find flights with one or two stops. Fit in a quick visit to another city or simply break up your journey.
What are the most popular departure times for flights from Cologne - Bonn Airport (CGN) to Dublin Airport (DUB)?
Flights between CGN and DUB are busiest at 9 AM. If you'd like a less crowded experience and potentially cheaper prices, look for a departure outside the usual busy windows.
What day of the week has the most flights from CGN to DUB?
Friday offers the most flights from Cologne - Bonn Airport (CGN) to Dublin Airport (DUB). Consider leaving on this day and you'll have the best chance of finding a departure that fits your schedule.
What is the earliest flight from Cologne - Bonn Airport (CGN) to Dublin Airport (DUB)?
The first flight of the day out of Cologne - Bonn Airport (CGN) is at around 9:40AM UTC+1. Board this plane and you'll reach Dublin Airport (DUB) at approximately 10:40AM UTC+0. The total flight duration is 2h.
How long does it take to fly from Cologne - Bonn Airport (CGN) to Dublin Airport (DUB)?
It usually takes 2 hours to fly the 590 mi from CGN to DUB.
What is the best time to fly from Cologne - Bonn Airport (CGN) to Dublin Airport (DUB)?
Choose a flight from Cologne - Bonn Airport (CGN) to Dublin Airport (DUB) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time have a 22% higher chance of being canceled, on average.**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 Dublin from Cologne - Bonn Airport (CGN)?
If you've booked a direct flight from Cologne - Bonn Airport (CGN) to Dublin, Dublin Airport (DUB) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Cologne - Bonn Airport (CGN) to Dublin Airport (DUB) last-minute?
Booking your plane ticket from CGN to DUB just before your journey is usually more expensive. But if you're flexible with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a CGN to DUB flight and hotel package?
You'll typically save money by booking a CGN to DUB flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've selected your preferred flights and accommodations, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from Cologne - Bonn Airport (CGN) to Dublin Airport (DUB)?
In most cases, you can modify or cancel your CGN to DUB flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you need further details, visit our Customer Service portal.

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*Available to One Key members.