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Cheap flights from Boston (BOS) to Shannon (SNN)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Boston (BOS) to Shannon (SNN)

How to find the cheapest flight from Boston (BOS) to Shannon (SNN)
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How to find the cheapest flight from Boston (BOS) to Shannon (SNN)
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How to find the cheapest flight from Boston (BOS) to Shannon (SNN)
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Cheap flights from Boston to Shannon in December 2025 , January 2026

31 Dec - 09 Jan $ 626.00
BOS
Boston
Aer Lingus
DIRECT
SNN
Shannon
SNN
Shannon
Aer Lingus
DIRECT
BOS
Boston
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26 Dec - 10 Jan $ 1,861.00
BOS
Boston
Aer Lingus
DIRECT
SNN
Shannon
SNN
Shannon
Aer Lingus
DIRECT
BOS
Boston
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26 Dec - 08 Jan $ 1,861.00
BOS
Boston
Aer Lingus
DIRECT
SNN
Shannon
SNN
Shannon
Aer Lingus
DIRECT
BOS
Boston
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Last minute flights from Boston to Shannon

30 Dec - 01 Jan $ 1,705.00
BOS
Boston
Lufthansa
DIRECT
SNN
Shannon
SNN
Shannon
Lufthansa
2 STOPS
BOS
Boston
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26 Dec - 31 Dec $ 2,476.00
BOS
Boston
Aer Lingus
DIRECT
SNN
Shannon
SNN
Shannon
Aer Lingus
DIRECT
BOS
Boston
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17 Dec - 31 Dec $ 2,903.00
BOS
Boston
Aer Lingus
DIRECT
SNN
Shannon
SNN
Shannon
Aer Lingus
DIRECT
BOS
Boston
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One-way flights to Shannon from Boston

7:25 PM - 7:25 PM
Aer Lingus
0 Stops
5h 55m
BOS - SNN
$ 554
Kiwi
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7:25 PM - 7:25 PM
Aer Lingus
0 Stops
5h 55m
BOS - SNN
$ 1,068
Kiwi
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7:25 PM - 7:25 PM
Aer Lingus
0 Stops
5h 55m
BOS - SNN
$ 1,496
Kiwi
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How to find the cheapest flight from Boston (BOS) to Shannon (SNN)

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How to find the cheapest flight from Boston (BOS) 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 Boston (BOS) to Shannon (SNN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.