United Flight 878 Deals & Information (2026/2027)

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United Flight 878 Route Deals From $558

The cheapest prices found with in the last 7 days for return flights were $911 and $558 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 9 - Wed, Sep 30
HKG
Hong Kong Intl.
SFO
San Francisco Intl.
$911 Roundtrip, found 6 days ago
$911
Roundtrip
found 6 days ago
Select United flight, departing Wed, Sep 9 from Hong Kong Intl. to San Francisco Intl., returning Wed, Sep 30, priced at $911 found 6 days ago
Mon, Sep 14 - Fri, Oct 2
HKG
Hong Kong Intl.
SFO
San Francisco Intl.
$915 Roundtrip, found 3 hours ago
$915
Roundtrip
found 3 hours ago
Select United flight, departing Mon, Sep 14 from Hong Kong Intl. to San Francisco Intl., returning Fri, Oct 2, priced at $915 found 3 hours ago
Mon, Sep 14 - Fri, Oct 2
HKG
Hong Kong Intl.
SFO
San Francisco Intl.
$920 Roundtrip, found 3 hours ago
$920
Roundtrip
found 3 hours ago
Select United flight, departing Mon, Sep 14 from Hong Kong Intl. to San Francisco Intl., returning Fri, Oct 2, priced at $920 found 3 hours ago
Mon, Sep 14 - Fri, Oct 2
HKG
Hong Kong Intl.
SFO
San Francisco Intl.
$953 Roundtrip, found 3 hours ago
$953
Roundtrip
found 3 hours ago
Select United flight, departing Mon, Sep 14 from Hong Kong Intl. to San Francisco Intl., returning Fri, Oct 2, priced at $953 found 3 hours ago