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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 March , April 2026

30 Mar - 28 Apr $ 1,174.00
ONT
Ontario
Alaska Airlines
3 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
3 STOPS
ONT
Ontario
Pick dates
30 Mar - 28 Apr $ 1,205.00
ONT
Ontario
Alaska Airlines
3 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
3 STOPS
ONT
Ontario
Pick dates
23 Mar - 28 Apr $ 1,232.00
ONT
Ontario
Alaska Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
3 STOPS
ONT
Ontario
Pick dates

Last minute flights from Ontario to Shannon

23 Mar - 31 Mar $ 1,572.00
ONT
Ontario
Alaska Airlines
3 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
3 STOPS
ONT
Ontario
Pick dates
23 Mar - 31 Mar $ 1,589.00
ONT
Ontario
Alaska Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
3 STOPS
ONT
Ontario
Pick dates
18 Mar - 31 Mar $ 1,637.00
ONT
Ontario
Alaska Airlines
3 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
3 STOPS
ONT
Ontario
Pick dates

One-way flights to Shannon from Ontario

9:06 AM - 2:40 PM
Aer Lingus
3 Stops
23h 4m
ONT - SNN
$ 634
Kiwi
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9:49 PM - 6:30 PM
Aer Lingus
3 Stops
23h 36m
ONT - SNN
$ 668
Kiwi
Pick dates
6:15 AM - 10:00 AM
Aer Lingus
3 Stops
22h 15m
ONT - SNN
$ 712
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.