United Flight 3557 Deals & Information (2026/2027)

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United Flight 3557 Route Deals From $112

The cheapest prices found with in the last 7 days for return flights were $253 and $112 for one-way flights to Pearson Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, May 7 - Wed, May 20
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$253 Roundtrip, just found
$253
Roundtrip
just found
Select United flight, departing Thu, May 7 from Newark Liberty Intl. Airport to Pearson Intl., returning Wed, May 20, priced at $253 just found
Mon, May 11 - Wed, May 13
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$263 Roundtrip, found 1 hour ago
$263
Roundtrip
found 1 hour ago
Select United flight, departing Mon, May 11 from Newark Liberty Intl. Airport to Pearson Intl., returning Wed, May 13, priced at $263 found 1 hour ago
Tue, May 26 - Thu, Jun 4
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$273 Roundtrip, found 15 hours ago
$273
Roundtrip
found 15 hours ago
Select United flight, departing Tue, May 26 from Newark Liberty Intl. Airport to Pearson Intl., returning Thu, Jun 4, priced at $273 found 15 hours ago
Mon, Jun 1 - Thu, Jun 4
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$274 Roundtrip, found 13 hours ago
$274
Roundtrip
found 13 hours ago
Select United flight, departing Mon, Jun 1 from Newark Liberty Intl. Airport to Pearson Intl., returning Thu, Jun 4, priced at $274 found 13 hours ago
Thu, May 14 - Sun, May 17
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$280 Roundtrip, found 3 hours ago
$280
Roundtrip
found 3 hours ago
Select United flight, departing Thu, May 14 from Newark Liberty Intl. Airport to Pearson Intl., returning Sun, May 17, priced at $280 found 3 hours ago
Sun, May 10 - Tue, May 12
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$292 Roundtrip, found 10 hours ago
$292
Roundtrip
found 10 hours ago
Select United flight, departing Sun, May 10 from Newark Liberty Intl. Airport to Pearson Intl., returning Tue, May 12, priced at $292 found 10 hours ago
Thu, May 14 - Sun, May 17
EWR
Newark Liberty Intl. Airport
YYZ
Pearson Intl.
$295 Roundtrip, found 3 hours ago
$295
Roundtrip
found 3 hours ago
Select United flight, departing Thu, May 14 from Newark Liberty Intl. Airport to Pearson Intl., returning Sun, May 17, priced at $295 found 3 hours ago

Frequently asked questions

What route does flight number UA3557 take?
UA3557 flies direct from Chicago, IL Airport (ORD-O'Hare Intl.) to Hartsfield–Jackson Atlanta International Airport. During this trip, expect to be in the air for approximately 1 hour and 58 minutes. Book ahead to lock in your preferred seat.
What terminal does UA3557 fly out of?
UA3557 runs between O'Hare Airport and Hartsfield-Jackson Atlanta Intl. Airport (ATL), and those booked on this flight commonly board the plane from Terminal 2.
What kind of plane is on flight number UA3557?
The Embraer 170 is the aircraft most often used for flight UA3557. This flight nearly always sets off from Chicago, IL Airport (ORD-O'Hare Intl.) and lands at Atlanta, GA Airport (ATL-Hartsfield-Jackson Atlanta Intl.).
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 UA3557 flight with Travelocity, please visit our Customer Service Portal.