United Flight 357 Deals & Information (2025/2026)

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United Flight 357 Route Deals From $89

The cheapest prices found with in the last 7 days for return flights were $157 and $89 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 23 - Tue, Sep 30
LAX
Los Angeles Intl.
SEA
Seattle - Tacoma Intl.
$157 Roundtrip, found 5 hours ago
$157
Roundtrip
found 5 hours ago
Select United flight, departing Tue, Sep 23 from Los Angeles Intl. to Seattle - Tacoma Intl., returning Tue, Sep 30, priced at $157 found 5 hours ago

Frequently asked questions

What route does flight number UA357 take?
UA357 is used on multiple routes. Most often, UA357 flies straight from Colorado Springs, CO Airport (COS) to Chicago, IL Airport (ORD-O'Hare Intl.). If that's your flight path, you'll be up above the clouds for about 2 hours and 29 minutes.
What kind of plane is on flight number UA357?
Chances are you'll travel aboard the Airbus A319 if you've booked a seat on flight number UA357 from COS to ORD. It's the most commonly used aircraft type on this busy 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 UA357 flight with Travelocity, please visit our Customer Service Portal.