United Flight AM820 Deals & Information (2025/2026)

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United Flight 820 Route Deals From $283

The cheapest prices found with in the last 7 days for return flights were $399 and $283 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Aug 4 - Thu, Aug 14
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$399 Roundtrip, found 5 hours ago
$399
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 4 from Mexico City Intl. to San Francisco Intl., returning Thu, Aug 14, priced at $399 found 5 hours ago
Mon, Aug 4 - Thu, Aug 14
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$403 Roundtrip, found 5 hours ago
$403
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 4 from Mexico City Intl. to San Francisco Intl., returning Thu, Aug 14, priced at $403 found 5 hours ago
Mon, Aug 4 - Thu, Aug 14
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$408 Roundtrip, found 5 hours ago
$408
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 4 from Mexico City Intl. to San Francisco Intl., returning Thu, Aug 14, priced at $408 found 5 hours ago
Thu, Jul 31 - Fri, Aug 1
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$410 Roundtrip, found 5 days ago
$410
Roundtrip
found 5 days ago
Select United flight, departing Thu, Jul 31 from Mexico City Intl. to San Francisco Intl., returning Fri, Aug 1, priced at $410 found 5 days ago
Thu, Jul 24 - Thu, Jul 31
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$414 Roundtrip, found 3 days ago
$414
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jul 24 from Mexico City Intl. to San Francisco Intl., returning Thu, Jul 31, priced at $414 found 3 days ago
Mon, Aug 4 - Thu, Aug 14
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$415 Roundtrip, found 5 hours ago
$415
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 4 from Mexico City Intl. to San Francisco Intl., returning Thu, Aug 14, priced at $415 found 5 hours ago
Mon, Aug 4 - Thu, Aug 14
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$419 Roundtrip, found 5 hours ago
$419
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 4 from Mexico City Intl. to San Francisco Intl., returning Thu, Aug 14, priced at $419 found 5 hours ago
Thu, Jul 24 - Thu, Jul 31
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$420 Roundtrip, found 3 days ago
$420
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jul 24 from Mexico City Intl. to San Francisco Intl., returning Thu, Jul 31, priced at $420 found 3 days ago
Mon, Aug 4 - Thu, Aug 14
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$424 Roundtrip, found 5 hours ago
$424
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 4 from Mexico City Intl. to San Francisco Intl., returning Thu, Aug 14, priced at $424 found 5 hours ago
Mon, Aug 4 - Thu, Aug 14
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$425 Roundtrip, found 5 hours ago
$425
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 4 from Mexico City Intl. to San Francisco Intl., returning Thu, Aug 14, priced at $425 found 5 hours ago
Mon, Aug 4 - Thu, Aug 14
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$428 Roundtrip, found 5 hours ago
$428
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 4 from Mexico City Intl. to San Francisco Intl., returning Thu, Aug 14, priced at $428 found 5 hours ago
Mon, Aug 4 - Thu, Aug 14
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$429 Roundtrip, found 5 hours ago
$429
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 4 from Mexico City Intl. to San Francisco Intl., returning Thu, Aug 14, priced at $429 found 5 hours ago
Thu, Jul 24 - Thu, Jul 31
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$430 Roundtrip, found 3 days ago
$430
Roundtrip
found 3 days ago
Select United flight, departing Thu, Jul 24 from Mexico City Intl. to San Francisco Intl., returning Thu, Jul 31, priced at $430 found 3 days ago
Mon, Aug 4 - Thu, Aug 14
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$432 Roundtrip, found 5 hours ago
$432
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 4 from Mexico City Intl. to San Francisco Intl., returning Thu, Aug 14, priced at $432 found 5 hours ago
Mon, Jul 28 - Sat, Aug 2
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$433 Roundtrip, found 3 days ago
$433
Roundtrip
found 3 days ago
Select United flight, departing Mon, Jul 28 from Mexico City Intl. to San Francisco Intl., returning Sat, Aug 2, priced at $433 found 3 days ago
Mon, Aug 4 - Thu, Aug 14
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$446 Roundtrip, found 5 hours ago
$446
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 4 from Mexico City Intl. to San Francisco Intl., returning Thu, Aug 14, priced at $446 found 5 hours ago
Mon, Aug 4 - Thu, Aug 14
MEX
Mexico City Intl.
SFO
San Francisco Intl.
$451 Roundtrip, found 5 hours ago
$451
Roundtrip
found 5 hours ago
Select United flight, departing Mon, Aug 4 from Mexico City Intl. to San Francisco Intl., returning Thu, Aug 14, priced at $451 found 5 hours ago