Baltimore to Boston in August 2026

Dated one-way fares from Baltimore to Boston in August 2026. Use the calendar to see which days are cheaper.

Lowest this month $156

Highest this month $263

Sample fare $156

Airports BWI–BOS

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August 2026 price calendar

From $156 · up to $263

Mon

Tue

Wed

Thu

Fri

Sat

Sun

28 $173 29 $156 30 $167 31 $263

Boston BOS

$156

Aug 29, 5:28pm · 15h 41m · 1 stop

BWI → BOS · Frontier Airlines

Boston BOS

$167

Aug 30, 9:32pm · 11h 9m · 1 stop

BWI → BOS · Frontier Airlines

Boston BOS

$173

Aug 28, 11:09am · 22h · 1 stop

BWI → BOS · Frontier Airlines

Boston BOS

$263

Aug 31, 4:20pm · 1h 30m · 0 stops

BWI → BOS · Southwest Airlines

This page is only August 2026 on the Baltimore to Boston route. Open the full route if you want the next months side by side.

Prices move as seats sell. Confirm the live itinerary before you book Baltimore to Boston in August 2026.