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 $242 and $119 for one-way flights to Logan Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Aug 12 - Wed, Aug 13
SFO
San Francisco Intl.
BOS
Logan Intl.
$242 Roundtrip, just found
$242
Roundtrip
just found
Select JetBlue Airways flight, departing Tue, Aug 12 from San Francisco Intl. to Logan Intl., returning Wed, Aug 13, priced at $242 just found
Fri, Sep 26 - Tue, Sep 30
SFO
San Francisco Intl.
BOS
Logan Intl.
$266 Roundtrip, just found
$266
Roundtrip
just found
Select JetBlue Airways flight, departing Fri, Sep 26 from San Francisco Intl. to Logan Intl., returning Tue, Sep 30, priced at $266 just found
Tue, Aug 12 - Tue, Aug 26
SFO
San Francisco Intl.
BOS
Logan Intl.
$272 Roundtrip, found 20 hours ago
$272
Roundtrip
found 20 hours ago
Select JetBlue Airways flight, departing Tue, Aug 12 from San Francisco Intl. to Logan Intl., returning Tue, Aug 26, priced at $272 found 20 hours ago
Thu, Aug 14 - Mon, Aug 25
SFO
San Francisco Intl.
BOS
Logan Intl.
$274 Roundtrip, just found
$274
Roundtrip
just found
Select JetBlue Airways flight, departing Thu, Aug 14 from San Francisco Intl. to Logan Intl., returning Mon, Aug 25, priced at $274 just found
Fri, Nov 7 - Sat, Nov 8
SFO
San Francisco Intl.
BOS
Logan Intl.
$276 Roundtrip, found 8 hours ago
$276
Roundtrip
found 8 hours ago
Select JetBlue Airways flight, departing Fri, Nov 7 from San Francisco Intl. to Logan Intl., returning Sat, Nov 8, priced at $276 found 8 hours ago
Fri, Sep 26 - Tue, Sep 30
SFO
San Francisco Intl.
BOS
Logan Intl.
$277 Roundtrip, just found
$277
Roundtrip
just found
Select JetBlue Airways flight, departing Fri, Sep 26 from San Francisco Intl. to Logan Intl., returning Tue, Sep 30, priced at $277 just found
Sat, Aug 16 - Sat, Aug 23
SFO
San Francisco Intl.
BOS
Logan Intl.
$282 Roundtrip, just found
$282
Roundtrip
just found
Select JetBlue Airways flight, departing Sat, Aug 16 from San Francisco Intl. to Logan Intl., returning Sat, Aug 23, priced at $282 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.