JetBlue Airways Flight 434 Deals & Information (2025/2026)

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JetBlue Airways Flight 434 Route Deals From $119

The cheapest prices found with in the last 7 days for return flights were $239 and $119 for one-way flights to Logan Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Sep 13 - Wed, Sep 17
SFO
San Francisco Intl.
BOS
Logan Intl.
$239 Roundtrip, just found
$239
Roundtrip
just found
Select JetBlue Airways flight, departing Sat, Sep 13 from San Francisco Intl. to Logan Intl., returning Wed, Sep 17, priced at $239 just found
Sat, Nov 8 - Sun, Nov 9
SFO
San Francisco Intl.
BOS
Logan Intl.
$242 Roundtrip, found 5 days ago
$242
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Sat, Nov 8 from San Francisco Intl. to Logan Intl., returning Sun, Nov 9, priced at $242 found 5 days ago
Thu, Nov 13 - Mon, Nov 17
SFO
San Francisco Intl.
BOS
Logan Intl.
$259 Roundtrip, just found
$259
Roundtrip
just found
Select JetBlue Airways flight, departing Thu, Nov 13 from San Francisco Intl. to Logan Intl., returning Mon, Nov 17, priced at $259 just found
Sat, Sep 13 - Wed, Sep 17
SFO
San Francisco Intl.
BOS
Logan Intl.
$264 Roundtrip, just found
$264
Roundtrip
just found
Select JetBlue Airways flight, departing Sat, Sep 13 from San Francisco Intl. to Logan Intl., returning Wed, Sep 17, priced at $264 just found
Tue, Jul 29 - Sun, Aug 24
SFO
San Francisco Intl.
BOS
Logan Intl.
$265 Roundtrip, found 3 days ago
$265
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Tue, Jul 29 from San Francisco Intl. to Logan Intl., returning Sun, Aug 24, priced at $265 found 3 days ago
Mon, Oct 6 - Tue, Oct 14
SFO
San Francisco Intl.
BOS
Logan Intl.
$267 Roundtrip, just found
$267
Roundtrip
just found
Select JetBlue Airways flight, departing Mon, Oct 6 from San Francisco Intl. to Logan Intl., returning Tue, Oct 14, priced at $267 just found
Tue, Jul 22 - Wed, Jul 30
SFO
San Francisco Intl.
BOS
Logan Intl.
$268 Roundtrip, found 3 days ago
$268
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Tue, Jul 22 from San Francisco Intl. to Logan Intl., returning Wed, Jul 30, priced at $268 found 3 days ago
Sun, Sep 14 - Wed, Sep 17
SFO
San Francisco Intl.
BOS
Logan Intl.
$269 Roundtrip, just found
$269
Roundtrip
just found
Select JetBlue Airways flight, departing Sun, Sep 14 from San Francisco Intl. to Logan Intl., returning Wed, Sep 17, priced at $269 just found
Mon, Oct 6 - Tue, Oct 14
SFO
San Francisco Intl.
BOS
Logan Intl.
$273 Roundtrip, just found
$273
Roundtrip
just found
Select JetBlue Airways flight, departing Mon, Oct 6 from San Francisco Intl. to Logan Intl., returning Tue, Oct 14, priced at $273 just found

Frequently asked questions

What route does flight number B6434 take?
You'll be landing into BOS from SFO if you're traveling on flight number B6434. You'll be in the air for 5 hours and 38 minutes during this journey. It's also worthwhile noting that the flight conveniently travels non-stop.
What terminal does B6434 fly out of?
You'll likely be hopping on the plane at Terminal 1 if you're flying on B6434 direct from SFO to BOS.
What kind of plane is on flight number B6434?
The Airbus A320 family is the aircraft model predominantly used for flight B6434. More often than not, this flight jets off from San Francisco, CA Airport (SFO-San Francisco Intl.) and arrives at Logan Intl. Airport (BOS).
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your B6434 flight with Travelocity, please visit our Customer Service Portal.