United Flight 820 Deals & Information (2025/2026)

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United Flight 820 Route Deals From $285

The cheapest prices found with in the last 7 days for return flights were $407 and $285 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Jan 25 - Sun, Feb 8
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$407 Roundtrip, found 1 hour ago
$407
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Jan 25 from Mexico City Intl. to San Francisco Intl., returning Sun, Feb 8, priced at $407 found 1 hour ago
Fri, Nov 21 - Wed, Dec 3
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$411 Roundtrip, found 4 hours ago
$411
Roundtrip
found 4 hours ago
Select United flight, departing Fri, Nov 21 from Mexico City Intl. to San Francisco Intl., returning Wed, Dec 3, priced at $411 found 4 hours ago