Flights from Boston to Carlsbad

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.

Wed, Jul 9 - Sat, Jul 12

BOS

Logan Intl.

SAN

San Diego Intl.

$277 Roundtrip, found 1 day ago

$277

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Wed, Jul 9 from Logan Intl. to San Diego Intl., returning Sat, Jul 12, priced at $277 found 1 day ago

Tue, Jul 8 - Tue, Jul 15

BOS

Logan Intl.

SAN

San Diego Intl.

$277 Roundtrip, found 1 day ago

$277

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Jul 8 from Logan Intl. to San Diego Intl., returning Tue, Jul 15, priced at $277 found 1 day ago

Tue, Jul 8 - Sat, Jul 12

BOS

Logan Intl.

SAN

San Diego Intl.

$277 Roundtrip, found 1 day ago

$277

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Tue, Jul 8 from Logan Intl. to San Diego Intl., returning Sat, Jul 12, priced at $277 found 1 day ago

Wed, May 21 - Thu, May 22

BOS

Logan Intl.

SAN

San Diego Intl.

$279 Roundtrip, found 6 days ago

$279

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Wed, May 21 from Logan Intl. to San Diego Intl., returning Thu, May 22, priced at $279 found 6 days ago

Wed, May 21 - Thu, May 22

BOS

Logan Intl.

SAN

San Diego Intl.

$282 Roundtrip, found 6 days ago

$282

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Wed, May 21 from Logan Intl. to San Diego Intl., returning Thu, May 22, priced at $282 found 6 days ago

Sat, Jul 12 - Wed, Jul 16

PVD

T.F. Green

SAN

San Diego Intl.

$287 Roundtrip, found 3 hours ago

$287

Roundtrip

found 3 hours ago

Select American Airlines flight, departing Sat, Jul 12 from T.F. Green to San Diego Intl., returning Wed, Jul 16, priced at $287 found 3 hours ago

Sat, Jul 12 - Wed, Jul 16

PVD

T.F. Green

SAN

San Diego Intl.

$288 Roundtrip, found 3 hours ago

$288

Roundtrip

found 3 hours ago

Select Breeze Airways flight, departing Sat, Jul 12 from T.F. Green to San Diego Intl., returning Wed, Jul 16, priced at $288 found 3 hours ago

Wed, May 21 - Thu, May 22

BOS

Logan Intl.

SAN

San Diego Intl.

$292 Roundtrip, found 6 days ago

$292

Roundtrip

found 6 days ago

Select United flight, departing Wed, May 21 from Logan Intl. to San Diego Intl., returning Thu, May 22, priced at $292 found 6 days ago

Wed, Jul 9 - Fri, Jul 11

BOS

Logan Intl.

SAN

San Diego Intl.

$292 Roundtrip, found 1 day ago

$292

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Wed, Jul 9 from Logan Intl. to San Diego Intl., returning Fri, Jul 11, priced at $292 found 1 day ago

Sat, Jul 12 - Wed, Jul 16

PVD

T.F. Green

SAN

San Diego Intl.

$293 Roundtrip, found 3 hours ago

$293

Roundtrip

found 3 hours ago

Select Breeze Airways flight, departing Sat, Jul 12 from T.F. Green to San Diego Intl., returning Wed, Jul 16, priced at $293 found 3 hours ago

Wed, Jul 9 - Tue, Jul 15

PVD

T.F. Green

SAN

San Diego Intl.

$297 Roundtrip, found 1 day ago

$297

Roundtrip

found 1 day ago

Select Delta flight, departing Wed, Jul 9 from T.F. Green to San Diego Intl., returning Tue, Jul 15, priced at $297 found 1 day ago

Thu, Jul 10 - Mon, Jul 14

BOS

Logan Intl.

SAN

San Diego Intl.

$307 Roundtrip, found 1 day ago

$307

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Thu, Jul 10 from Logan Intl. to San Diego Intl., returning Mon, Jul 14, priced at $307 found 1 day ago

Fri, Jul 11 - Sun, Jul 13

ORH

Worcester Regional

SAN

San Diego Intl.

$307 Roundtrip, found 1 day ago

$307

Roundtrip

found 1 day ago

Select Delta flight, departing Fri, Jul 11 from Worcester Regional to San Diego Intl., returning Sun, Jul 13, priced at $307 found 1 day ago

Wed, May 21 - Thu, May 22

BOS

Logan Intl.

SAN

San Diego Intl.

$313 Roundtrip, found 6 days ago

$313

Roundtrip

found 6 days ago

Select United flight, departing Wed, May 21 from Logan Intl. to San Diego Intl., returning Thu, May 22, priced at $313 found 6 days ago

Sat, Jul 12 - Wed, Jul 16

PVD

T.F. Green

SAN

San Diego Intl.

$316 Roundtrip, found 3 hours ago

$316

Roundtrip

found 3 hours ago

Select Breeze Airways flight, departing Sat, Jul 12 from T.F. Green to San Diego Intl., returning Wed, Jul 16, priced at $316 found 3 hours ago

Thu, Jul 10 - Mon, Jul 14

BOS

Logan Intl.

SAN

San Diego Intl.

$317 Roundtrip, found 1 day ago

$317

Roundtrip

found 1 day ago

Select American Airlines flight, departing Thu, Jul 10 from Logan Intl. to San Diego Intl., returning Mon, Jul 14, priced at $317 found 1 day ago

Thu, Jul 10 - Mon, Jul 14

BOS

Logan Intl.

CLD

McClellan-Palomar

$322 Roundtrip, found 1 day ago

$322

Roundtrip

found 1 day ago

Select American Airlines flight, departing Thu, Jul 10 from Logan Intl. to McClellan-Palomar, returning Mon, Jul 14, priced at $322 found 1 day ago

Thu, Jul 10 - Mon, Jul 14

BOS

Logan Intl.

SAN

San Diego Intl.

$327 Roundtrip, found 1 day ago

$327

Roundtrip

found 1 day ago

Select United flight, departing Thu, Jul 10 from Logan Intl. to San Diego Intl., returning Mon, Jul 14, priced at $327 found 1 day ago

Tue, Jul 8 - Wed, Jul 16

MHT

Manchester-Boston Regional

SAN

San Diego Intl.

$368 Roundtrip, found 1 day ago

$368

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Tue, Jul 8 from Manchester-Boston Regional to San Diego Intl., returning Wed, Jul 16, priced at $368 found 1 day ago

Thu, Jul 10 - Mon, Jul 14

BOS

Logan Intl.

SAN

San Diego Intl.

$478 Roundtrip, found 1 day ago

$478

Roundtrip

found 1 day ago

Select Sun Country Airlines flight, departing Thu, Jul 10 from Logan Intl. to San Diego Intl., returning Mon, Jul 14, priced at $478 found 1 day ago