Cheap flights from London to Bonn - Rhein-Sieg

View AU$125 flight on Mon, 17 Nov. 2025Opens in a new window

Popular airlines from London to Bonn - Rhein-Sieg

  • British Airways

    British Airways

  • Lufthansa

    Lufthansa

  • Austrian Airlines

    Austrian Airlines

  • Brussels Airlines

    Brussels Airlines

  • Swiss International Air Lines

    Swiss International Air Lines

  • Air France

    Air France

  • KLM

    KLM

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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 4 days ago
AU$239
Return
found 4 days ago
Select Eurowings Luftverkehrs flight, departing Fri, 5 Sep. from London to Cologne, returning Fri, 12 Sep., priced at AU$239 found 4 days ago
Eurowings Luftverkehrs
Tue, 9 Sep. - Tue, 16 Sep.
LHR
London
CGN
Cologne
AU$250 Return, found 14 hours ago
AU$250
Return
found 14 hours ago
Select Eurowings Luftverkehrs flight, departing Tue, 9 Sep. from London to Cologne, returning Tue, 16 Sep., priced at AU$250 found 14 hours ago
British Airways
Fri, 5 Sep. - Fri, 12 Sep.
LHR
London
CGN
Cologne
AU$273 Return, found 4 days ago
AU$273
Return
found 4 days ago
Select British Airways flight, departing Fri, 5 Sep. from London to Cologne, returning Fri, 12 Sep., priced at AU$273 found 4 days ago
Lufthansa
Tue, 9 Sep. - Tue, 16 Sep.
LHR
London
CGN
Cologne
AU$360 Return, found 14 hours ago
AU$360
Return
found 14 hours ago
Select Lufthansa flight, departing Tue, 9 Sep. from London to Cologne, returning Tue, 16 Sep., priced at AU$360 found 14 hours ago
Austrian Airlines
Wed, 8 Oct. - Sun, 1 Feb.
LHR
London
CGN
Cologne
AU$396 Return, found 1 day ago
AU$396
Return
found 1 day ago
Select Austrian Airlines flight, departing Wed, 8 Oct. from London to Cologne, returning Sun, 1 Feb., priced at AU$396 found 1 day ago
Swiss International Air Lines
Thu, 28 Aug. - Wed, 3 Sep.
LHR
London
CGN
Cologne
AU$569 Return, found 1 day ago
AU$569
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Thu, 28 Aug. from London to Cologne, returning Wed, 3 Sep., priced at AU$569 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.