
Flights from Boston to San Gregorio
Photo by Jay Morales
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.

Tue, Nov 4 - Thu, Nov 6
BOS
Logan Intl.
SJC
Norman Y. Mineta San Jose Intl.
$164 Roundtrip, found 1 day ago
$164
Roundtrip
found 1 day ago

Tue, Nov 4 - Thu, Nov 6
BOS
Logan Intl.
SJC
Norman Y. Mineta San Jose Intl.
$209 Roundtrip, found 1 day ago
$209
Roundtrip
found 1 day ago

Tue, Nov 4 - Thu, Nov 6
BOS
Logan Intl.
SJC
Norman Y. Mineta San Jose Intl.
$218 Roundtrip, found 1 day ago
$218
Roundtrip
found 1 day ago

Tue, Nov 4 - Thu, Nov 6
BOS
Logan Intl.
SJC
Norman Y. Mineta San Jose Intl.
$223 Roundtrip, found 1 day ago
$223
Roundtrip
found 1 day ago

Sat, Sep 6 - Sat, Sep 13
BOS
Logan Intl.
SFO
San Francisco Intl.
$237 Roundtrip, found 13 hours ago
$237
Roundtrip
found 13 hours ago

Wed, Sep 3 - Sat, Sep 13
BOS
Logan Intl.
SFO
San Francisco Intl.
$237 Roundtrip, found 1 day ago
$237
Roundtrip
found 1 day ago

Sat, Sep 6 - Wed, Sep 17
BOS
Logan Intl.
SFO
San Francisco Intl.
$237 Roundtrip, found 2 days ago
$237
Roundtrip
found 2 days ago

Tue, Sep 2 - Sat, Sep 13
BOS
Logan Intl.
SFO
San Francisco Intl.
$237 Roundtrip, found 1 day ago
$237
Roundtrip
found 1 day ago

Tue, Nov 4 - Thu, Nov 6
BOS
Logan Intl.
SJC
Norman Y. Mineta San Jose Intl.
$244 Roundtrip, found 1 day ago
$244
Roundtrip
found 1 day ago

Tue, Nov 4 - Thu, Nov 6
BOS
Logan Intl.
SJC
Norman Y. Mineta San Jose Intl.
$246 Roundtrip, found 1 day ago
$246
Roundtrip
found 1 day ago

Sat, Sep 6 - Wed, Sep 17
BOS
Logan Intl.
SFO
San Francisco Intl.
$247 Roundtrip, found 2 days ago
$247
Roundtrip
found 2 days ago

Sat, Sep 6 - Wed, Sep 17
BOS
Logan Intl.
SFO
San Francisco Intl.
$247 Roundtrip, found 2 days ago
$247
Roundtrip
found 2 days ago

Sat, Sep 6 - Fri, Sep 12
BOS
Logan Intl.
SFO
San Francisco Intl.
$248 Roundtrip, found 13 hours ago
$248
Roundtrip
found 13 hours ago

Fri, Sep 12 - Fri, Sep 12
BOS
Logan Intl.
SFO
San Francisco Intl.
$254 Roundtrip, found 13 hours ago
$254
Roundtrip
found 13 hours ago

Tue, Nov 4 - Thu, Nov 6
BOS
Logan Intl.
SJC
Norman Y. Mineta San Jose Intl.
$255 Roundtrip, found 1 day ago
$255
Roundtrip
found 1 day ago

Sat, Sep 6 - Wed, Sep 17
BOS
Logan Intl.
SFO
San Francisco Intl.
$257 Roundtrip, found 2 days ago
$257
Roundtrip
found 2 days ago

Wed, Oct 22 - Sun, Nov 9
BOS
Logan Intl.
SFO
San Francisco Intl.
$258 Roundtrip, found 4 days ago
$258
Roundtrip
found 4 days ago

Tue, Oct 21 - Fri, Nov 7
BOS
Logan Intl.
SFO
San Francisco Intl.
$258 Roundtrip, found 4 days ago
$258
Roundtrip
found 4 days ago

Sat, Sep 6 - Fri, Sep 26
BOS
Logan Intl.
OAK
Oakland Intl.
$268 Roundtrip, found 20 hours ago
$268
Roundtrip
found 20 hours ago
Tue, Aug 5 - Sun, Aug 10
BOS
Logan Intl.
SFO
San Francisco Intl.
$558 Roundtrip, found 1 hour ago
$558
Roundtrip
found 1 hour ago