Flights from Boston to Gaithersburg

Cheapest flights from Boston

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 20 - Mon, Sep 22

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$64 Roundtrip, found 2 days ago

$64

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sat, Sep 20 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Mon, Sep 22, priced at $64 found 2 days ago

Tue, Jul 8 - Mon, Jul 14

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$74 Roundtrip, found 1 day ago

$74

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Tue, Jul 8 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Mon, Jul 14, priced at $74 found 1 day ago

Thu, Jul 10 - Sun, Jul 13

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$77 Roundtrip, found 1 day ago

$77

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, Jul 10 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Sun, Jul 13, priced at $77 found 1 day ago

Tue, Jun 24 - Tue, Jul 1

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$82 Roundtrip, found 6 days ago

$82

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Tue, Jun 24 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Tue, Jul 1, priced at $82 found 6 days ago

Tue, Jul 8 - Thu, Jul 10

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$87 Roundtrip, found 1 day ago

$87

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Tue, Jul 8 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Thu, Jul 10, priced at $87 found 1 day ago

Wed, Jun 25 - Wed, Jun 25

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$90 Roundtrip, found 6 days ago

$90

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Wed, Jun 25 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Wed, Jun 25, priced at $90 found 6 days ago

Thu, Jul 10 - Thu, Jul 10

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$93 Roundtrip, found 1 day ago

$93

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, Jul 10 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Thu, Jul 10, priced at $93 found 1 day ago

Tue, Jun 24 - Fri, Jun 27

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$95 Roundtrip, found 6 days ago

$95

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Tue, Jun 24 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Fri, Jun 27, priced at $95 found 6 days ago

Thu, Jul 10 - Sun, Jul 13

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$96 Roundtrip, found 1 day ago

$96

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Thu, Jul 10 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Sun, Jul 13, priced at $96 found 1 day ago

Fri, Jul 11 - Sun, Jul 13

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$100 Roundtrip, found 1 day ago

$100

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Fri, Jul 11 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Sun, Jul 13, priced at $100 found 1 day ago

Sat, Sep 20 - Mon, Sep 22

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$103 Roundtrip, found 2 days ago

$103

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sat, Sep 20 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Mon, Sep 22, priced at $103 found 2 days ago

Wed, Jun 25 - Wed, Jul 2

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$106 Roundtrip, found 6 days ago

$106

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Wed, Jun 25 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Wed, Jul 2, priced at $106 found 6 days ago

Wed, Jun 25 - Wed, Jul 2

BOS

Logan Intl.

IAD

Washington Dulles Intl.

$172 Roundtrip, found 6 days ago

$172

Roundtrip

found 6 days ago

Select United flight, departing Wed, Jun 25 from Logan Intl. to Washington Dulles Intl., returning Wed, Jul 2, priced at $172 found 6 days ago

Wed, Jun 25 - Wed, Jul 2

BOS

Logan Intl.

DCA

Ronald Reagan Washington National

$172 Roundtrip, found 6 days ago

$172

Roundtrip

found 6 days ago

Select American Airlines flight, departing Wed, Jun 25 from Logan Intl. to Ronald Reagan Washington National, returning Wed, Jul 2, priced at $172 found 6 days ago

Wed, Jun 25 - Wed, Jul 2

BOS

Logan Intl.

DCA

Ronald Reagan Washington National

$177 Roundtrip, found 6 days ago

$177

Roundtrip

found 6 days ago

Select Delta flight, departing Wed, Jun 25 from Logan Intl. to Ronald Reagan Washington National, returning Wed, Jul 2, priced at $177 found 6 days ago

Wed, Jun 25 - Wed, Jul 2

BOS

Logan Intl.

DCA

Ronald Reagan Washington National

$217 Roundtrip, found 6 days ago

$217

Roundtrip

found 6 days ago

Select JetBlue Airways flight, departing Wed, Jun 25 from Logan Intl. to Ronald Reagan Washington National, returning Wed, Jul 2, priced at $217 found 6 days ago

Tue, Jun 17 - Mon, Jun 23

BOS

Logan Intl.

BWI

Baltimore Washington Intl. Thurgood Marshall

$229 Roundtrip, found 9 hours ago

$229

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Tue, Jun 17 from Logan Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Mon, Jun 23, priced at $229 found 9 hours ago

Tue, Sep 23 - Wed, Sep 24

PVD

T.F. Green

BWI

Baltimore Washington Intl. Thurgood Marshall

$257 Roundtrip, found 2 days ago

$257

Roundtrip

found 2 days ago

Select American Airlines flight, departing Tue, Sep 23 from T.F. Green to Baltimore Washington Intl. Thurgood Marshall, returning Wed, Sep 24, priced at $257 found 2 days ago

Thu, Sep 18 - Sat, Sep 20

MHT

Manchester-Boston Regional

BWI

Baltimore Washington Intl. Thurgood Marshall

$266 Roundtrip, found 6 days ago

$266

Roundtrip

found 6 days ago

Select American Airlines flight, departing Thu, Sep 18 from Manchester-Boston Regional to Baltimore Washington Intl. Thurgood Marshall, returning Sat, Sep 20, priced at $266 found 6 days ago

Sat, Jun 21 - Mon, Jun 23

ORH

Worcester Regional

BWI

Baltimore Washington Intl. Thurgood Marshall

$876 Roundtrip, found 9 hours ago

$876

Roundtrip

found 9 hours ago

Select American Airlines flight, departing Sat, Jun 21 from Worcester Regional to Baltimore Washington Intl. Thurgood Marshall, returning Mon, Jun 23, priced at $876 found 9 hours ago