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Cheap flights from Baltimore (BWI) to Boston (BOS)

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0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Baltimore (BWI) to Boston (BOS)

How to find the cheapest flight from Baltimore (BWI) to Boston (BOS)
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How to find the cheapest flight from Baltimore (BWI) to Boston (BOS)
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How to find the cheapest flight from Baltimore (BWI) to Boston (BOS)
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Cheap flights from Baltimore to Boston in August , September 2026

31 Aug - 22 Sep $ 340.00
BWI
Baltimore
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
BWI
Baltimore
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17 Aug - 12 Sep $ 1,166.00
BWI
Baltimore
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
BWI
Baltimore
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17 Aug - 11 Sep $ 1,283.00
BWI
Baltimore
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
BWI
Baltimore
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Last minute flights from Baltimore to Boston

29 Aug - 31 Aug $ 502.00
BWI
Baltimore
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
BWI
Baltimore
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26 Aug - 01 Sep $ 746.00
BWI
Baltimore
Alaska Airlines
1 STOPS
BOS
Boston
BOS
Boston
Alaska Airlines
1 STOPS
BWI
Baltimore
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19 Aug - 31 Aug $ 1,056.00
BWI
Baltimore
United Airlines
1 STOPS
BOS
Boston
BOS
Boston
United Airlines
1 STOPS
BWI
Baltimore
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One-way flights to Boston from Baltimore

9:32 PM - 9:05 AM
Frontier Airlines
1 Stops
14h 15m
BWI - BOS
$ 201
Kiwi
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9:32 PM - 6:00 AM
Frontier Airlines
1 Stops
11h 9m
BWI - BOS
$ 254
Kiwi
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9:37 PM - 6:00 AM
Frontier Airlines
1 Stops
11h 4m
BWI - BOS
$ 259
Kiwi
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How to find the cheapest flight from Baltimore (BWI) to Boston (BOS)

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