United Flight AS5312 Deals & Information (2025/2026)

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United Flight 5312 Route Deals From $92

The cheapest prices found with in the last 7 days for return flights were $157 and $92 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Aug 14 - Sat, Aug 16
BOI
Boise
SFO
San Francisco Intl.
$157 Roundtrip, found 5 days ago
$157
Roundtrip
found 5 days ago
Select United flight, departing Thu, Aug 14 from Boise to San Francisco Intl., returning Sat, Aug 16, priced at $157 found 5 days ago
Wed, Aug 20 - Sat, Aug 23
BOI
Boise
SFO
San Francisco Intl.
$169 Roundtrip, found 6 days ago
$169
Roundtrip
found 6 days ago
Select United flight, departing Wed, Aug 20 from Boise to San Francisco Intl., returning Sat, Aug 23, priced at $169 found 6 days ago
Thu, Aug 14 - Sat, Aug 16
BOI
Boise
SFO
San Francisco Intl.
$175 Roundtrip, found 5 days ago
$175
Roundtrip
found 5 days ago
Select United flight, departing Thu, Aug 14 from Boise to San Francisco Intl., returning Sat, Aug 16, priced at $175 found 5 days ago
Mon, Aug 4 - Thu, Aug 7
BOI
Boise
SFO
San Francisco Intl.
$196 Roundtrip, found 1 day ago
$196
Roundtrip
found 1 day ago
Select United flight, departing Mon, Aug 4 from Boise to San Francisco Intl., returning Thu, Aug 7, priced at $196 found 1 day ago
Thu, Aug 14 - Sat, Aug 16
BOI
Boise
SFO
San Francisco Intl.
$203 Roundtrip, found 5 days ago
$203
Roundtrip
found 5 days ago
Select United flight, departing Thu, Aug 14 from Boise to San Francisco Intl., returning Sat, Aug 16, priced at $203 found 5 days ago
Thu, Aug 14 - Sat, Aug 16
BOI
Boise
SFO
San Francisco Intl.
$207 Roundtrip, found 5 days ago
$207
Roundtrip
found 5 days ago
Select United flight, departing Thu, Aug 14 from Boise to San Francisco Intl., returning Sat, Aug 16, priced at $207 found 5 days ago

Frequently asked questions

What route does flight number UA5312 take?
UA5312 takes multiple routes. The most popular is between FSD and DEN, which flies direct. This flight takes around 1 hour and 46 minutes. That said, there are likely to be other flights with the same number that are multi-stop.
What kind of plane is on flight number UA5312?
If you're on flight UA5312 from Joe Foss Field to Denver Intl. Airport (DEN), you'll most likely be jetting off on an Embraer 175. This flight number serves several routes, but this is the most common one.
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 UA5312 flight with Travelocity, please visit our Customer Service Portal.