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Cheap flights from St Louis (STL) 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 St Louis (STL) to Shannon (SNN)

How to find the cheapest flight from St Louis (STL) to Shannon (SNN)
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How to find the cheapest flight from St Louis (STL) to Shannon (SNN)
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How to find the cheapest flight from St Louis (STL) to Shannon (SNN)
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Cheap flights from St Louis to Shannon in March , April 2026

24 Mar - 07 Apr $ 828.00
STL
St Louis
United Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
United Airlines
1 STOPS
STL
St Louis
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23 Mar - 06 Apr $ 881.00
STL
St Louis
United Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
United Airlines
1 STOPS
STL
St Louis
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23 Mar - 06 Apr $ 881.00
STL
St Louis
United Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
United Airlines
1 STOPS
STL
St Louis
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Last minute flights from St Louis to Shannon

23 Mar - 01 Apr $ 1,602.00
STL
St Louis
Frontier Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Frontier Airlines
3 STOPS
STL
St Louis
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24 Mar - 01 Apr $ 1,604.00
STL
St Louis
Frontier Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Frontier Airlines
3 STOPS
STL
St Louis
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17 Mar - 01 Apr $ 1,645.00
STL
St Louis
Frontier Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Frontier Airlines
3 STOPS
STL
St Louis
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One-way flights to Shannon from St Louis

5:59 PM - 3:15 PM
Aer Lingus
2 Stops
17h 46m
STL - SNN
$ 575
Kiwi
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6:59 PM - 3:15 PM
Aer Lingus
2 Stops
16h 46m
STL - SNN
$ 577
Kiwi
Pick dates
6:59 PM - 3:15 PM
Aer Lingus
2 Stops
16h 46m
STL - SNN
$ 618
Kiwi
Pick dates

How to find the cheapest flight from St Louis (STL) to Shannon (SNN)

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