United Flight 4510 Deals & Information (2026/2027)

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United Flight 4510 Route Deals From $111

The cheapest prices found with in the last 7 days for return flights were $182 and $111 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Feb 24 - Wed, Feb 25
SDF
Louisville Intl.
ORD
O'Hare Intl.
$182 Roundtrip, found 1 day ago
$182
Roundtrip
found 1 day ago
Select United flight, departing Tue, Feb 24 from Louisville Intl. to O'Hare Intl., returning Wed, Feb 25, priced at $182 found 1 day ago
Tue, Feb 24 - Wed, Feb 25
SDF
Louisville Intl.
ORD
O'Hare Intl.
$201 Roundtrip, found 1 day ago
$201
Roundtrip
found 1 day ago
Select United flight, departing Tue, Feb 24 from Louisville Intl. to O'Hare Intl., returning Wed, Feb 25, priced at $201 found 1 day ago
Tue, Feb 24 - Wed, Feb 25
SDF
Louisville Intl.
ORD
O'Hare Intl.
$211 Roundtrip, found 1 day ago
$211
Roundtrip
found 1 day ago
Select United flight, departing Tue, Feb 24 from Louisville Intl. to O'Hare Intl., returning Wed, Feb 25, priced at $211 found 1 day ago
Tue, Feb 24 - Wed, Feb 25
SDF
Louisville Intl.
ORD
O'Hare Intl.
$230 Roundtrip, found 1 day ago
$230
Roundtrip
found 1 day ago
Select United flight, departing Tue, Feb 24 from Louisville Intl. to O'Hare Intl., returning Wed, Feb 25, priced at $230 found 1 day ago
Fri, Mar 13 - Mon, Mar 23
SDF
Louisville Intl.
ORD
O'Hare Intl.
$235 Roundtrip, found 5 days ago
$235
Roundtrip
found 5 days ago
Select United flight, departing Fri, Mar 13 from Louisville Intl. to O'Hare Intl., returning Mon, Mar 23, priced at $235 found 5 days ago
Tue, Feb 24 - Wed, Feb 25
SDF
Louisville Intl.
ORD
O'Hare Intl.
$244 Roundtrip, found 1 day ago
$244
Roundtrip
found 1 day ago
Select United flight, departing Tue, Feb 24 from Louisville Intl. to O'Hare Intl., returning Wed, Feb 25, priced at $244 found 1 day ago
Tue, Feb 24 - Wed, Feb 25
SDF
Louisville Intl.
ORD
O'Hare Intl.
$246 Roundtrip, found 1 day ago
$246
Roundtrip
found 1 day ago
Select United flight, departing Tue, Feb 24 from Louisville Intl. to O'Hare Intl., returning Wed, Feb 25, priced at $246 found 1 day ago
Tue, Feb 24 - Wed, Feb 25
SDF
Louisville Intl.
ORD
O'Hare Intl.
$263 Roundtrip, found 1 day ago
$263
Roundtrip
found 1 day ago
Select United flight, departing Tue, Feb 24 from Louisville Intl. to O'Hare Intl., returning Wed, Feb 25, priced at $263 found 1 day ago
Tue, Feb 24 - Wed, Feb 25
SDF
Louisville Intl.
ORD
O'Hare Intl.
$266 Roundtrip, found 1 day ago
$266
Roundtrip
found 1 day ago
Select United flight, departing Tue, Feb 24 from Louisville Intl. to O'Hare Intl., returning Wed, Feb 25, priced at $266 found 1 day ago

Frequently asked questions

What route does flight number UA4510 take?
UA4510 flies direct from Toronto, ON Airport (YYZ-Pearson Intl.) to O'Hare Intl. Airport (ORD) in around 1 hour and 49 minutes. It can take other routes though, some of which may be multi-stop journeys. Keep this in mind when booking your airfare to avoid any confusion.
What terminal does UA4510 fly out of?
Terminal 1 is where you'll likely take off from if you're booked on a flight leaving from YYZ. YYZ to O'Hare Intl. Airport (ORD) is the most popular route for flight number UA4510.
What kind of plane is on flight number UA4510?
UA4510 is a flight number that is used on multiple routes. If you've booked a ticket on its most popular one, Toronton Pearson to O'Hare Airport, you're likely to be hopping on board a Canadair (Bombardier) Regional Jet 550.
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 UA4510 flight with Travelocity, please visit our Customer Service Portal.