United Flight AA1557 Deals & Information (2025/2026)

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United Flight 1557 Route Deals From $120

The cheapest prices found with in the last 7 days for return flights were $214 and $120 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 28 - Fri, Nov 7
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$214 Roundtrip, found 1 day ago
$214
Roundtrip
found 1 day ago
Select United flight, departing Tue, Oct 28 from Buffalo Niagara Intl. to O'Hare Intl., returning Fri, Nov 7, priced at $214 found 1 day ago
Sat, Jan 17 - Tue, Jan 20
BUF
Buffalo Niagara Intl.
ORD
O'Hare Intl.
$249 Roundtrip, found 8 hours ago
$249
Roundtrip
found 8 hours ago
Select United flight, departing Sat, Jan 17 from Buffalo Niagara Intl. to O'Hare Intl., returning Tue, Jan 20, priced at $249 found 8 hours ago

Frequently asked questions

What route does flight number UA1557 take?
Flight number UA1557 operates non-stop from OGG to San Francisco Intl. Airport (SFO). During this trip, you can expect to be in the air for 4 hours and 56 minutes. It pays to book ahead to lock in your preferred seat.
How often is UA1557 on time?
About 70% of flight number UA1557 services touch down on time — so allow a bit of extra room in your travel plans. If you experience a delay, the standard wait is around 25 minutes. Be conscious of this if you need to make a connecting flight or your friend is meeting you at the airport. This trip has a star rating of 1.65.
What kind of plane is on flight number UA1557?
Get ready to cruise aboard a Boeing 737-800 if you've reserved a seat on flight UA1557. Most services from Kahului Airport to San Francisco Airport use this kind of plane.
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 UA1557 flight with Travelocity, please visit our Customer Service Portal.