United Flight 5423 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 5423 Route Deals From $312

The cheapest prices found with in the last 7 days for return flights were $380 and $312 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jan 24 - Tue, Jan 27
SUN
Friedman Memorial
SFO
San Francisco Intl.
$380 Roundtrip, found 3 days ago
$380
Roundtrip
found 3 days ago
Select United flight, departing Sat, Jan 24 from Friedman Memorial to San Francisco Intl., returning Tue, Jan 27, priced at $380 found 3 days ago
Sat, Jan 24 - Tue, Jan 27
SUN
Friedman Memorial
SFO
San Francisco Intl.
$438 Roundtrip, found 3 days ago
$438
Roundtrip
found 3 days ago
Select United flight, departing Sat, Jan 24 from Friedman Memorial to San Francisco Intl., returning Tue, Jan 27, priced at $438 found 3 days ago

Frequently asked questions

What route does flight number UA5423 take?
UA5423 is used on a range of routes. Typically, UA5423 flies directly from BFL to DEN. If you've booked a seat on this route, you'll be in the air for 2 hours and 28 minutes.
What kind of plane is on flight number UA5423?
Chances are you'll travel aboard a Bombardier CRJ if you've booked a fare on flight number UA5423 from BFL to Denver Intl. Airport (DEN). This is the most commonly used aircraft type on this popular route.
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 UA5423 flight with Travelocity, please visit our Customer Service Portal.