$142 Cheap Frontier Airlines flights Washington (IAD) to Boston (BOS)

$142 Cheap Frontier Airlines flights Washington (IAD) to Boston (BOS)

Prices were available within the past 7 days and start at $142 for one-way flights and $312 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jul 10 - Thu, Jul 17

IAD

Washington

BOS

Boston

$312 Roundtrip, found 11 hours ago

$312

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Thu, Jul 10 from Washington to Boston, returning Thu, Jul 17, priced at $312 found 11 hours ago

Thu, Jul 10 - Sat, Jul 12

IAD

Washington

BOS

Boston

$340 Roundtrip, found 11 hours ago

$340

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Thu, Jul 10 from Washington to Boston, returning Sat, Jul 12, priced at $340 found 11 hours ago

Thu, Jul 10 - Fri, Jul 11

IAD

Washington

BOS

Boston

$344 Roundtrip, found 11 hours ago

$344

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Thu, Jul 10 from Washington to Boston, returning Fri, Jul 11, priced at $344 found 11 hours ago