United Flight UA433 Deals & Information (2025/2026)

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United Flight 433 Route Deals From $274

The cheapest prices found with in the last 7 days for return flights were $289 and $274 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 28 - Sat, Nov 1
PHL
Philadelphia Intl.
SFO
San Francisco Intl.
$289 Roundtrip, found 2 hours ago
$289
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Oct 28 from Philadelphia Intl. to San Francisco Intl., returning Sat, Nov 1, priced at $289 found 2 hours ago
Tue, Oct 28 - Sat, Nov 1
PHL
Philadelphia Intl.
SFO
San Francisco Intl.
$299 Roundtrip, found 2 hours ago
$299
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Oct 28 from Philadelphia Intl. to San Francisco Intl., returning Sat, Nov 1, priced at $299 found 2 hours ago
Tue, Aug 12 - Tue, Aug 19
PHL
Philadelphia Intl.
SFO
San Francisco Intl.
$304 Roundtrip, found 7 hours ago
$304
Roundtrip
found 7 hours ago
Select United flight, departing Tue, Aug 12 from Philadelphia Intl. to San Francisco Intl., returning Tue, Aug 19, priced at $304 found 7 hours ago
Thu, Oct 23 - Tue, Oct 28
PHL
Philadelphia Intl.
SFO
San Francisco Intl.
$312 Roundtrip, found 4 days ago
$312
Roundtrip
found 4 days ago
Select United flight, departing Thu, Oct 23 from Philadelphia Intl. to San Francisco Intl., returning Tue, Oct 28, priced at $312 found 4 days ago
Tue, Oct 28 - Sat, Nov 1
PHL
Philadelphia Intl.
SFO
San Francisco Intl.
$313 Roundtrip, found 2 hours ago
$313
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Oct 28 from Philadelphia Intl. to San Francisco Intl., returning Sat, Nov 1, priced at $313 found 2 hours ago
Tue, Aug 12 - Tue, Aug 19
PHL
Philadelphia Intl.
SFO
San Francisco Intl.
$319 Roundtrip, found 7 hours ago
$319
Roundtrip
found 7 hours ago
Select United flight, departing Tue, Aug 12 from Philadelphia Intl. to San Francisco Intl., returning Tue, Aug 19, priced at $319 found 7 hours ago
Wed, Aug 13 - Wed, Aug 20
PHL
Philadelphia Intl.
SFO
San Francisco Intl.
$321 Roundtrip, found 7 hours ago
$321
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Aug 13 from Philadelphia Intl. to San Francisco Intl., returning Wed, Aug 20, priced at $321 found 7 hours ago

Frequently asked questions

What route does flight number UA433 take?
Flight number UA433 takes approximately 5 hours and 7 minutes to fly straight from Kona Intl. Airport (KOA) to San Francisco Airport. We all know there's magic in the destination, but half the fun is in the journey!
What kind of plane is on flight number UA433?
The route for UA433 is predominantly Ellison Onizuka Kona Intl. Airport at Keāhole to San Francisco, CA Airport (SFO-San Francisco Intl.), and the Boeing 737-900 is the type of aircraft you're likely to be heading off on.
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 UA433 flight with Travelocity, please visit our Customer Service Portal.