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Cheap flights from Ontario (ONT) to London (LCY)

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How to find the cheapest flight from Ontario (ONT) to London (LCY)

How to find the cheapest flight from Ontario (ONT) to London (LCY)
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How to find the cheapest flight from Ontario (ONT) to London (LCY)
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How to find the cheapest flight from Ontario (ONT) to London (LCY)
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Cheap flights from Ontario to London in August , September 2026

25 Aug - 30 Sep $ 1,432.00
ONT
Ontario
Frontier Airlines
3 STOPS
LCY
London
LCY
London
Frontier Airlines
3 STOPS
ONT
Ontario
Pick dates
25 Aug - 30 Sep $ 1,460.00
ONT
Ontario
Frontier Airlines
3 STOPS
LCY
London
LCY
London
Frontier Airlines
3 STOPS
ONT
Ontario
Pick dates
26 Aug - 30 Sep $ 1,492.00
ONT
Ontario
Frontier Airlines
2 STOPS
LCY
London
LCY
London
Frontier Airlines
3 STOPS
ONT
Ontario
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Last minute flights from Ontario to London

25 Aug - 01 Sep $ 1,840.00
ONT
Ontario
Frontier Airlines
3 STOPS
LCY
London
LCY
London
Frontier Airlines
3 STOPS
ONT
Ontario
Pick dates
25 Aug - 01 Sep $ 1,868.00
ONT
Ontario
Frontier Airlines
3 STOPS
LCY
London
LCY
London
Frontier Airlines
3 STOPS
ONT
Ontario
Pick dates
22 Aug - 31 Aug $ 2,037.00
ONT
Ontario
JetBlue Airways
2 STOPS
LCY
London
LCY
London
JetBlue Airways
2 STOPS
ONT
Ontario
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One-way flights to London from Ontario

6:02 AM - 11:55 AM
Swiss International Air Lines
3 Stops
22h 33m
ONT - LCY
$ 785
Kiwi
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7:13 PM - 11:55 AM
United Airlines
2 Stops
57h 22m
ONT - LCY
$ 870
Kiwi
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7:00 AM - 11:00 AM
United Airlines
2 Stops
20h 40m
ONT - LCY
$ 1,013
Kiwi
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How to find the cheapest flight from Ontario (ONT) to London (LCY)

Related info for your journey
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How to find the cheapest flight from Ontario (ONT) to London (LCY)
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How to find the cheapest flight from Ontario (ONT) to London (LCY)
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