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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 November , December 2026

30 Nov - 06 Dec $ 1,255.00
ONT
Ontario
Alaska Airlines
3 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
2 STOPS
ONT
Ontario
Pick dates
30 Nov - 10 Dec $ 1,257.00
ONT
Ontario
Alaska Airlines
3 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
2 STOPS
ONT
Ontario
Pick dates
30 Nov - 07 Dec $ 1,264.00
ONT
Ontario
Alaska Airlines
3 STOPS
SNN
Shannon
SNN
Shannon
Alaska Airlines
2 STOPS
ONT
Ontario
Pick dates

Last minute flights from Ontario to Shannon

25 Nov - 01 Dec $ 1,353.00
ONT
Ontario
Frontier Airlines
3 STOPS
SNN
Shannon
SNN
Shannon
Frontier Airlines
3 STOPS
ONT
Ontario
Pick dates
26 Nov - 01 Dec $ 1,383.00
ONT
Ontario
Frontier Airlines
3 STOPS
SNN
Shannon
SNN
Shannon
Frontier Airlines
3 STOPS
ONT
Ontario
Pick dates
26 Nov - 01 Dec $ 1,401.00
ONT
Ontario
Frontier Airlines
3 STOPS
SNN
Shannon
SNN
Shannon
Frontier Airlines
3 STOPS
ONT
Ontario
Pick dates

One-way flights to Shannon from Ontario

8:15 AM - 6:05 PM
Aer Lingus
3 Stops
27h 10m
ONT - SNN
$ 534
Kiwi
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8:15 AM - 6:05 PM
Aer Lingus
3 Stops
27h 10m
ONT - SNN
$ 598
Kiwi
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11:55 AM - 6:05 PM
Aer Lingus
3 Stops
23h 30m
ONT - SNN
$ 646
Kiwi
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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.