$237 Cheap Frontier Airlines flights San Francisco (SFO) to Boston (BOS)

$237 Cheap Frontier Airlines flights San Francisco (SFO) to Boston (BOS)

Prices were available within the past 7 days and start at $237 for one-way flights and $1,008 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Dec 21 - Fri, Dec 26

SFO

San Francisco

BOS

Boston

$1,008 Roundtrip, found 3 days ago

$1,008

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sun, Dec 21 from San Francisco to Boston, returning Fri, Dec 26, priced at $1,008 found 3 days ago