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 June , July 2026

28 Jun - 17 Jul $ 506.00
BWI
Baltimore
Frontier Airlines
2 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
BWI
Baltimore
Pick dates
30 Jun - 04 Jul $ 1,003.00
BWI
Baltimore
Frontier Airlines
1 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
BWI
Baltimore
Pick dates
29 Jun - 07 Jul $ 1,268.00
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 Jun - 30 Jun $ 784.00
BWI
Baltimore
Frontier Airlines
2 STOPS
BOS
Boston
BOS
Boston
Frontier Airlines
1 STOPS
BWI
Baltimore
Pick dates
28 Jun - 30 Jun $ 848.00
BWI
Baltimore
United Airlines
1 STOPS
BOS
Boston
BOS
Boston
United Airlines
1 STOPS
BWI
Baltimore
Pick dates
29 Jun - 01 Jul $ 2,733.00
BWI
Baltimore
Icelandair
1 STOPS
BOS
Boston
BOS
Boston
Icelandair
1 STOPS
BWI
Baltimore
Pick dates

One-way flights to Boston from Baltimore

6:15 AM - 12:53 PM
United Airlines
1 Stops
10h 14m
BWI - BOS
$ 407
Kiwi
Pick dates
6:15 AM - 7:45 PM
United Airlines
1 Stops
17h 6m
BWI - BOS
$ 407
Kiwi
Pick dates
8:16 AM - 10:25 AM
United Airlines
1 Stops
5h 46m
BWI - BOS
$ 542
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.