Cheap flights from London to Bonn - Rhein-Sieg

View AU$126 flight on Thu, 25 Sep. 2025Opens in a new window

Popular airlines from London to Bonn - Rhein-Sieg

  • British Airways

    British Airways

  • Lufthansa

    Lufthansa

  • Air France

    Air France

  • SAS

    SAS

  • Eurowings Luftverkehrs

    Eurowings Luftverkehrs

  • Aer Lingus

    Aer Lingus

  • Swiss International Air Lines

    Swiss International Air Lines

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Cheap Flights from London (LON) 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.

Eurowings Luftverkehrs
Fri, 5 Sep. - Fri, 12 Sep.
LHR
London
CGN
Cologne
AU$239 Return, found 2 days ago
AU$239
Return
found 2 days ago
Select Eurowings Luftverkehrs flight, departing Fri, 5 Sep. from London to Cologne, returning Fri, 12 Sep., priced at AU$239 found 2 days ago
Eurowings Luftverkehrs
Fri, 26 Sep. - Mon, 29 Sep.
LHR
London
CGN
Cologne
AU$258 Return, found 3 hours ago
AU$258
Return
found 3 hours ago
Select Eurowings Luftverkehrs flight, departing Fri, 26 Sep. from London to Cologne, returning Mon, 29 Sep., priced at AU$258 found 3 hours ago
British Airways
Fri, 5 Sep. - Fri, 12 Sep.
LHR
London
CGN
Cologne
AU$273 Return, found 2 days ago
AU$273
Return
found 2 days ago
Select British Airways flight, departing Fri, 5 Sep. from London to Cologne, returning Fri, 12 Sep., priced at AU$273 found 2 days ago
Lufthansa
Sat, 27 Dec. - Wed, 31 Dec.
LHR
London
CGN
Cologne
AU$361 Return, found 2 days ago
AU$361
Return
found 2 days ago
Select Lufthansa flight, departing Sat, 27 Dec. from London to Cologne, returning Wed, 31 Dec., priced at AU$361 found 2 days ago
Austrian Airlines
Mon, 15 Dec. - Tue, 6 Jan.
LHR
London
CGN
Cologne
AU$397 Return, found 2 days ago
AU$397
Return
found 2 days ago
Select Austrian Airlines flight, departing Mon, 15 Dec. from London to Cologne, returning Tue, 6 Jan., priced at AU$397 found 2 days ago
Swiss International Air Lines
Tue, 28 Oct. - Sat, 1 Nov.
LHR
London
CGN
Cologne
AU$570 Return, found 1 day ago
AU$570
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Tue, 28 Oct. from London to Cologne, returning Sat, 1 Nov., priced at AU$570 found 1 day ago

Find the cheapest month to fly from London (LON) to Frankfurt (FRA)

March is typically the cheapest month to fly

From AU$84 - AU$281 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.