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

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0 Children (2~11)
0 Infants (0~2)
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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 August , September 2026

25 Aug - 04 Sep $ 941.00
ONT
Ontario
United Airlines
1 STOPS
SNN
Shannon
SNN
Shannon
United Airlines
1 STOPS
ONT
Ontario
Pick dates
30 Aug - 05 Sep $ 1,362.00
ONT
Ontario
United Airlines
1 STOPS
SNN
Shannon
SNN
Shannon
United Airlines
1 STOPS
ONT
Ontario
Pick dates
30 Aug - 06 Sep $ 1,387.00
ONT
Ontario
United Airlines
1 STOPS
SNN
Shannon
SNN
Shannon
United Airlines
2 STOPS
ONT
Ontario
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Last minute flights from Ontario to Shannon

25 Aug - 31 Aug $ 1,670.00
ONT
Ontario
Alaska Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
2 STOPS
ONT
Ontario
Pick dates
24 Aug - 31 Aug $ 1,670.00
ONT
Ontario
Alaska Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
2 STOPS
ONT
Ontario
Pick dates
23 Aug - 31 Aug $ 1,743.00
ONT
Ontario
Alaska Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
2 STOPS
ONT
Ontario
Pick dates

One-way flights to Shannon from Ontario

7:00 AM - 6:05 PM
United Airlines
1 Stops
16h 30m
ONT - SNN
$ 635
Kiwi
Pick dates
7:00 AM - 6:05 PM
United Airlines
1 Stops
16h 30m
ONT - SNN
$ 635
Kiwi
Pick dates
7:00 AM - 6:05 PM
United Airlines
1 Stops
16h 30m
ONT - SNN
$ 636
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.