United Flight 4510 Deals & Information (2026/2027)

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United Flight 4510 Route Deals From $49

The cheapest prices found with in the last 7 days for return flights were $100 and $49 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Apr 21 - Wed, Apr 22
SDF
Louisville Intl.
ORD
O'Hare Intl.
$100 Roundtrip, found 3 days ago
$100
Roundtrip
found 3 days ago
Select United flight, departing Tue, Apr 21 from Louisville Intl. to O'Hare Intl., returning Wed, Apr 22, priced at $100 found 3 days ago
Wed, Apr 22 - Thu, Apr 23
SDF
Louisville Intl.
ORD
O'Hare Intl.
$130 Roundtrip, found 3 days ago
$130
Roundtrip
found 3 days ago
Select United flight, departing Wed, Apr 22 from Louisville Intl. to O'Hare Intl., returning Thu, Apr 23, priced at $130 found 3 days ago
Tue, Apr 21 - Wed, Apr 22
SDF
Louisville Intl.
ORD
O'Hare Intl.
$142 Roundtrip, found 3 days ago
$142
Roundtrip
found 3 days ago
Select United flight, departing Tue, Apr 21 from Louisville Intl. to O'Hare Intl., returning Wed, Apr 22, priced at $142 found 3 days ago
Tue, Apr 21 - Wed, Apr 22
SDF
Louisville Intl.
ORD
O'Hare Intl.
$143 Roundtrip, found 3 days ago
$143
Roundtrip
found 3 days ago
Select United flight, departing Tue, Apr 21 from Louisville Intl. to O'Hare Intl., returning Wed, Apr 22, priced at $143 found 3 days ago
Mon, Apr 13 - Wed, Apr 15
SDF
Louisville Intl.
ORD
O'Hare Intl.
$147 Roundtrip, found 3 days ago
$147
Roundtrip
found 3 days ago
Select United flight, departing Mon, Apr 13 from Louisville Intl. to O'Hare Intl., returning Wed, Apr 15, priced at $147 found 3 days ago
Tue, Apr 21 - Wed, Apr 22
SDF
Louisville Intl.
ORD
O'Hare Intl.
$152 Roundtrip, found 3 days ago
$152
Roundtrip
found 3 days ago
Select United flight, departing Tue, Apr 21 from Louisville Intl. to O'Hare Intl., returning Wed, Apr 22, priced at $152 found 3 days ago
Mon, Apr 13 - Wed, Apr 15
SDF
Louisville Intl.
ORD
O'Hare Intl.
$158 Roundtrip, found 3 days ago
$158
Roundtrip
found 3 days ago
Select United flight, departing Mon, Apr 13 from Louisville Intl. to O'Hare Intl., returning Wed, Apr 15, priced at $158 found 3 days ago
Wed, Mar 25 - Tue, Apr 7
SDF
Louisville Intl.
ORD
O'Hare Intl.
$161 Roundtrip, found 6 days ago
$161
Roundtrip
found 6 days ago
Select United flight, departing Wed, Mar 25 from Louisville Intl. to O'Hare Intl., returning Tue, Apr 7, priced at $161 found 6 days ago
Mon, Apr 13 - Wed, Apr 15
SDF
Louisville Intl.
ORD
O'Hare Intl.
$162 Roundtrip, found 3 days ago
$162
Roundtrip
found 3 days ago
Select United flight, departing Mon, Apr 13 from Louisville Intl. to O'Hare Intl., returning Wed, Apr 15, priced at $162 found 3 days ago
Tue, Apr 21 - Wed, Apr 22
SDF
Louisville Intl.
ORD
O'Hare Intl.
$177 Roundtrip, found 3 days ago
$177
Roundtrip
found 3 days ago
Select United flight, departing Tue, Apr 21 from Louisville Intl. to O'Hare Intl., returning Wed, Apr 22, priced at $177 found 3 days ago
Mon, Apr 13 - Wed, Apr 15
SDF
Louisville Intl.
ORD
O'Hare Intl.
$179 Roundtrip, found 3 days ago
$179
Roundtrip
found 3 days ago
Select United flight, departing Mon, Apr 13 from Louisville Intl. to O'Hare Intl., returning Wed, Apr 15, priced at $179 found 3 days ago
Wed, Apr 22 - Thu, Apr 23
SDF
Louisville Intl.
ORD
O'Hare Intl.
$182 Roundtrip, found 3 days ago
$182
Roundtrip
found 3 days ago
Select United flight, departing Wed, Apr 22 from Louisville Intl. to O'Hare Intl., returning Thu, Apr 23, priced at $182 found 3 days ago
Mon, Apr 13 - Wed, Apr 15
SDF
Louisville Intl.
ORD
O'Hare Intl.
$189 Roundtrip, found 3 days ago
$189
Roundtrip
found 3 days ago
Select United flight, departing Mon, Apr 13 from Louisville Intl. to O'Hare Intl., returning Wed, Apr 15, priced at $189 found 3 days 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.