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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 July , August 2026

28 Jul - 29 Aug $ 1,313.00
STL
St Louis
Air Canada
2 STOPS
SNN
Shannon
SNN
Shannon
Air Canada
3 STOPS
STL
St Louis
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28 Jul - 18 Aug $ 1,325.00
STL
St Louis
Air Canada
2 STOPS
SNN
Shannon
SNN
Shannon
Air Canada
3 STOPS
STL
St Louis
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28 Jul - 27 Aug $ 1,496.00
STL
St Louis
Air Canada
2 STOPS
SNN
Shannon
SNN
Shannon
Air Canada
2 STOPS
STL
St Louis
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Last minute flights from St Louis to Shannon

28 Jul - 01 Aug $ 2,354.00
STL
St Louis
Frontier Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Frontier Airlines
3 STOPS
STL
St Louis
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28 Jul - 01 Aug $ 2,401.00
STL
St Louis
Frontier Airlines
2 STOPS
SNN
Shannon
SNN
Shannon
Frontier Airlines
3 STOPS
STL
St Louis
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28 Jul - 01 Aug $ 2,433.00
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

3:22 PM - 6:05 PM
United Airlines
1 Stops
10h 8m
STL - SNN
$ 546
Kiwi
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3:22 PM - 6:05 PM
United Airlines
1 Stops
10h 8m
STL - SNN
$ 547
Kiwi
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1:13 PM - 6:05 PM
United Airlines
1 Stops
12h 17m
STL - SNN
$ 547
Kiwi
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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.