Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Baltimore (BWI) to Boston (BOS)

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.
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.

Cheap flights from Baltimore to Boston in October , November 2026

28 Oct - 10 Nov $ 276.00
BWI
Baltimore
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
BWI
Baltimore
Pick dates
28 Oct - 26 Nov $ 285.00
BWI
Baltimore
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
BWI
Baltimore
Pick dates
28 Oct - 04 Nov $ 297.00
BWI
Baltimore
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
BWI
Baltimore
Pick dates

Last minute flights from Baltimore to Boston

28 Oct - 31 Oct $ 317.00
BWI
Baltimore
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
BWI
Baltimore
Pick dates
21 Oct - 31 Oct $ 339.00
BWI
Baltimore
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
BWI
Baltimore
Pick dates
20 Oct - 31 Oct $ 340.00
BWI
Baltimore
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
BWI
Baltimore
Pick dates

One-way flights to Boston from Baltimore

5:40 AM - 9:01 AM
Frontier Airlines
1 Stops
6h 4m
BWI - BOS
$ 156
Kiwi
Pick dates
5:40 AM - 9:05 AM
Frontier Airlines
1 Stops
6h 12m
BWI - BOS
$ 190
Kiwi
Pick dates
5:40 AM - 9:05 AM
Frontier Airlines
1 Stops
6h 12m
BWI - BOS
$ 191
Kiwi
Pick dates

How to find the cheapest flight from Baltimore (BWI) to Boston (BOS)

Related info for your journey
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.
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.