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Cheap flights from Ontario (ONT) to Shannon (SNN)

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How to find the cheapest flight from Ontario (ONT) to Shannon (SNN)

How to find the cheapest flight from Ontario (ONT) to Shannon (SNN)
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How to find the cheapest flight from Ontario (ONT) to Shannon (SNN)
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How to find the cheapest flight from Ontario (ONT) to Shannon (SNN)
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Cheap flights from Ontario to Shannon in January , February 2026

26 Jan - 26 Feb $ 1,116.00
ONT
Ontario
Alaska Airlines
3 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
3 STOPS
ONT
Ontario
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20 Jan - 26 Feb $ 1,164.00
ONT
Ontario
Alaska Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
3 STOPS
ONT
Ontario
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31 Jan - 07 Feb $ 1,172.00
ONT
Ontario
Hawaiian Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Hawaiian Airlines
2 STOPS
ONT
Ontario
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Last minute flights from Ontario to Shannon

26 Jan - 02 Feb $ 1,056.00
ONT
Ontario
Frontier Airlines
3 STOPS
SNN
Shannon
SNN
Shannon
Frontier Airlines
3 STOPS
ONT
Ontario
Pick dates
20 Jan - 02 Feb $ 1,103.00
ONT
Ontario
Frontier Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Frontier Airlines
3 STOPS
ONT
Ontario
Pick dates
25 Jan - 02 Feb $ 1,142.00
ONT
Ontario
Frontier Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Frontier Airlines
3 STOPS
ONT
Ontario
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One-way flights to Shannon from Ontario

1:53 PM - 3:15 PM
Aer Lingus
2 Stops
18h 52m
ONT - SNN
$ 320
Kiwi
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1:53 PM - 6:05 PM
Aer Lingus
2 Stops
21h 32m
ONT - SNN
$ 320
Kiwi
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1:53 PM - 3:15 PM
Aer Lingus
2 Stops
18h 52m
ONT - SNN
$ 538
Kiwi
Pick dates

How to find the cheapest flight from Ontario (ONT) to Shannon (SNN)

Related info for your journey
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How to find the cheapest flight from Ontario (ONT) to Shannon (SNN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Ontario (ONT) to Shannon (SNN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.