
United Flight 4781 Deals & Information (2025/2026)
Wander Wisely with exceptional service, 24/7 supportOpens in a new window
Feel at ease with free flight cancellations within 24 hours of booking
Change your flight without a fee on select flights
United Flight 4781 Route Deals From $39
The cheapest prices found with in the last 7 days for return flights were $77 and $39 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.
PDX
Portland Intl.
SFO
San Francisco Intl.
$77 Roundtrip, just found
$77
Roundtrip
just found
PDX
Portland Intl.
SFO
San Francisco Intl.
$94 Roundtrip, found 5 days ago
$94
Roundtrip
found 5 days ago
PDX
Portland Intl.
SFO
San Francisco Intl.
$107 Roundtrip, found 19 hours ago
$107
Roundtrip
found 19 hours ago
PDX
Portland Intl.
SFO
San Francisco Intl.
$114 Roundtrip, just found
$114
Roundtrip
just found
PDX
Portland Intl.
SFO
San Francisco Intl.
$120 Roundtrip, found 6 days ago
$120
Roundtrip
found 6 days ago
PDX
Portland Intl.
SFO
San Francisco Intl.
$129 Roundtrip, found 19 hours ago
$129
Roundtrip
found 19 hours ago
PDX
Portland Intl.
SFO
San Francisco Intl.
$129 Roundtrip, found 5 days ago
$129
Roundtrip
found 5 days ago
PDX
Portland Intl.
SFO
San Francisco Intl.
$130 Roundtrip, found 2 days ago
$130
Roundtrip
found 2 days ago
PDX
Portland Intl.
SFO
San Francisco Intl.
$135 Roundtrip, found 2 days ago
$135
Roundtrip
found 2 days ago