United Flight AS5720 Deals & Information (2025/2026)

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United Flight 5720 Route Deals From $89

The cheapest prices found with in the last 7 days for return flights were $177 and $89 for one-way flights to Boise for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Aug 9 - Sat, Aug 16
SFO
San Francisco Intl.
BOI
Boise
$177 Roundtrip, found 8 hours ago
$177
Roundtrip
found 8 hours ago
Select United flight, departing Sat, Aug 9 from San Francisco Intl. to Boise, returning Sat, Aug 16, priced at $177 found 8 hours ago
Sat, Aug 9 - Sat, Aug 16
SFO
San Francisco Intl.
BOI
Boise
$180 Roundtrip, found 8 hours ago
$180
Roundtrip
found 8 hours ago
Select United flight, departing Sat, Aug 9 from San Francisco Intl. to Boise, returning Sat, Aug 16, priced at $180 found 8 hours ago
Fri, Oct 10 - Wed, Oct 15
SFO
San Francisco Intl.
BOI
Boise
$190 Roundtrip, found 6 days ago
$190
Roundtrip
found 6 days ago
Select United flight, departing Fri, Oct 10 from San Francisco Intl. to Boise, returning Wed, Oct 15, priced at $190 found 6 days ago
Sat, Aug 9 - Sat, Aug 16
SFO
San Francisco Intl.
BOI
Boise
$193 Roundtrip, found 8 hours ago
$193
Roundtrip
found 8 hours ago
Select United flight, departing Sat, Aug 9 from San Francisco Intl. to Boise, returning Sat, Aug 16, priced at $193 found 8 hours ago

Frequently asked questions

What route does flight number UA5720 take?
UA5720 flies direct from South Bend Airport to ORD. During this journey, you’ll be in the air for approximately 52 minutes. It pays to book ahead to secure your favorite seat.
What kind of plane is on flight number UA5720?
Expect to cruise aboard a Bombardier CRJ if you’re booked on flight UA5720. Most flights from South Bend, IN Airport (SBN-South Bend Intl.) to O’Hare Airport use this aircraft type.
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 UA5720 flight with Travelocity, please visit our Customer Service Portal.