$147 Cheap Frontier Airlines flights Boston (BOS) to Washington (IAD)

$147 Cheap Frontier Airlines flights Boston (BOS) to Washington (IAD)

Prices were available within the past 7 days and start at $147 for one-way flights and $223 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Dec 15 - Mon, Jan 5

BOS

Boston

IAD

Washington

$223 Roundtrip, found 12 hours ago

$223

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Mon, Dec 15 from Boston to Washington, returning Mon, Jan 5, priced at $223 found 12 hours ago

Mon, Dec 15 - Thu, Dec 25

BOS

Boston

IAD

Washington

$248 Roundtrip, found 12 hours ago

$248

Roundtrip

found 12 hours ago

Select Frontier Airlines flight, departing Mon, Dec 15 from Boston to Washington, returning Thu, Dec 25, priced at $248 found 12 hours ago

Sat, Dec 20 - Mon, Jan 12

BOS

Boston

IAD

Washington

$302 Roundtrip, found 16 hours ago

$302

Roundtrip

found 16 hours ago

Select Frontier Airlines flight, departing Sat, Dec 20 from Boston to Washington, returning Mon, Jan 12, priced at $302 found 16 hours ago