Cheap flights from Dublin to Bonn - Rhein-Sieg

View AU$209 flight on Thu, 16 Oct. 2025Opens in a new window

Popular airlines from Dublin to Bonn - Rhein-Sieg

  • Air France

    Air France

  • British Airways

    British Airways

  • Aer Lingus

    Aer Lingus

  • KLM

    KLM

  • Lufthansa

    Lufthansa

  • Swiss International Air Lines

    Swiss International Air Lines

  • Eurowings Luftverkehrs

    Eurowings Luftverkehrs

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Dublin (DUB) to Bonn - Rhein-Sieg (CGN)

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

Lufthansa
Wed, 6 Aug. - Wed, 20 Aug.
DUB
Dublin
CGN
Cologne
AU$379 Return, found 5 days ago
AU$379
Return
found 5 days ago
Select Lufthansa flight, departing Wed, 6 Aug. from Dublin to Cologne, returning Wed, 20 Aug., priced at AU$379 found 5 days ago
Lufthansa
Sun, 23 Nov. - Thu, 4 Dec.
DUB
Dublin
CGN
Cologne
AU$385 Return, found 1 day ago
AU$385
Return
found 1 day ago
Select Lufthansa flight, departing Sun, 23 Nov. from Dublin to Cologne, returning Thu, 4 Dec., priced at AU$385 found 1 day ago
Lufthansa
Wed, 6 Aug. - Wed, 20 Aug.
DUB
Dublin
CGN
Cologne
AU$393 Return, found 5 days ago
AU$393
Return
found 5 days ago
Select Lufthansa flight, departing Wed, 6 Aug. from Dublin to Cologne, returning Wed, 20 Aug., priced at AU$393 found 5 days ago
Lufthansa
Thu, 28 Aug. - Sun, 31 Aug.
DUB
Dublin
CGN
Cologne
AU$396 Return, found 1 day ago
AU$396
Return
found 1 day ago
Select Lufthansa flight, departing Thu, 28 Aug. from Dublin to Cologne, returning Sun, 31 Aug., priced at AU$396 found 1 day ago
Swiss International Air Lines
Sun, 23 Nov. - Thu, 4 Dec.
DUB
Dublin
CGN
Cologne
AU$557 Return, found 1 day ago
AU$557
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Sun, 23 Nov. from Dublin to Cologne, returning Thu, 4 Dec., priced at AU$557 found 1 day ago
British Airways
Sun, 23 Nov. - Thu, 4 Dec.
DUB
Dublin
CGN
Cologne
AU$571 Return, found 1 day ago
AU$571
Return
found 1 day ago
Select British Airways flight, departing Sun, 23 Nov. from Dublin to Cologne, returning Thu, 4 Dec., priced at AU$571 found 1 day ago

Find the cheapest month to fly from Dublin (DUB) to Frankfurt (FRA)

May is typically the cheapest month to fly

From AU$83 - AU$264 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.