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Cheap flights from St Louis (STL) to Boston (BOS)

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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 Boston (BOS)

How to find the cheapest flight from St Louis (STL) to Boston (BOS)
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How to find the cheapest flight from St Louis (STL) to Boston (BOS)
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How to find the cheapest flight from St Louis (STL) to Boston (BOS)
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Cheap flights from St Louis to Boston in November , December 2026

22 Nov - 12 Dec $ 408.00
STL
St Louis
Frontier Airlines
2 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
STL
St Louis
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13 Nov - 07 Dec $ 1,278.00
STL
St Louis
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
STL
St Louis
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14 Nov - 04 Dec $ 1,284.00
STL
St Louis
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
STL
St Louis
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Last minute flights from St Louis to Boston

22 Nov - 30 Nov $ 608.00
STL
St Louis
Frontier Airlines
2 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
STL
St Louis
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16 Nov - 30 Nov $ 1,694.00
STL
St Louis
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
STL
St Louis
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14 Nov - 30 Nov $ 1,703.00
STL
St Louis
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
STL
St Louis
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One-way flights to Boston from St Louis

2:10 PM - 6:00 AM
JetBlue Airways
2 Stops
18h 15m
STL - BOS
$ 241
Kiwi
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3:23 PM - 9:20 PM
Alaska Airlines
1 Stops
13h 17m
STL - BOS
$ 794
Kiwi
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6:00 AM - 9:30 AM
Alaska Airlines
1 Stops
11h
STL - BOS
$ 795
Kiwi
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How to find the cheapest flight from St Louis (STL) to Boston (BOS)

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