United Flight UA4555 Deals & Information (2025/2026)

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United Flight 4555 Route Deals From $224

The cheapest prices found with in the last 7 days for return flights were $209 and $224 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Nov 4 - Tue, Nov 11
SCE
University Park
ORD
O'Hare Intl.
$209 Roundtrip, found 3 days ago
$209
Roundtrip
found 3 days ago
Select United flight, departing Tue, Nov 4 from University Park to O'Hare Intl., returning Tue, Nov 11, priced at $209 found 3 days ago
Fri, Sep 12 - Mon, Sep 15
SCE
University Park
ORD
O'Hare Intl.
$214 Roundtrip, found 8 hours ago
$214
Roundtrip
found 8 hours ago
Select United flight, departing Fri, Sep 12 from University Park to O'Hare Intl., returning Mon, Sep 15, priced at $214 found 8 hours ago
Tue, Nov 4 - Tue, Nov 11
SCE
University Park
ORD
O'Hare Intl.
$219 Roundtrip, found 3 days ago
$219
Roundtrip
found 3 days ago
Select United flight, departing Tue, Nov 4 from University Park to O'Hare Intl., returning Tue, Nov 11, priced at $219 found 3 days ago
Fri, Sep 12 - Mon, Sep 15
SCE
University Park
ORD
O'Hare Intl.
$223 Roundtrip, found 8 hours ago
$223
Roundtrip
found 8 hours ago
Select United flight, departing Fri, Sep 12 from University Park to O'Hare Intl., returning Mon, Sep 15, priced at $223 found 8 hours ago
Tue, Nov 4 - Thu, Nov 13
SCE
University Park
ORD
O'Hare Intl.
$230 Roundtrip, found 5 days ago
$230
Roundtrip
found 5 days ago
Select United flight, departing Tue, Nov 4 from University Park to O'Hare Intl., returning Thu, Nov 13, priced at $230 found 5 days ago
Fri, Sep 12 - Mon, Sep 15
SCE
University Park
ORD
O'Hare Intl.
$236 Roundtrip, found 8 hours ago
$236
Roundtrip
found 8 hours ago
Select United flight, departing Fri, Sep 12 from University Park to O'Hare Intl., returning Mon, Sep 15, priced at $236 found 8 hours ago
Fri, Dec 5 - Sun, Dec 7
SCE
University Park
ORD
O'Hare Intl.
$242 Roundtrip, found 5 days ago
$242
Roundtrip
found 5 days ago
Select United flight, departing Fri, Dec 5 from University Park to O'Hare Intl., returning Sun, Dec 7, priced at $242 found 5 days ago
Sat, Aug 30 - Sun, Aug 31
SCE
University Park
ORD
O'Hare Intl.
$243 Roundtrip, found 4 days ago
$243
Roundtrip
found 4 days ago
Select United flight, departing Sat, Aug 30 from University Park to O'Hare Intl., returning Sun, Aug 31, priced at $243 found 4 days ago
Fri, Sep 12 - Mon, Sep 15
SCE
University Park
ORD
O'Hare Intl.
$245 Roundtrip, found 8 hours ago
$245
Roundtrip
found 8 hours ago
Select United flight, departing Fri, Sep 12 from University Park to O'Hare Intl., returning Mon, Sep 15, priced at $245 found 8 hours ago
Fri, Dec 5 - Sat, Dec 6
SCE
University Park
ORD
O'Hare Intl.
$246 Roundtrip, found 5 days ago
$246
Roundtrip
found 5 days ago
Select United flight, departing Fri, Dec 5 from University Park to O'Hare Intl., returning Sat, Dec 6, priced at $246 found 5 days ago

Frequently asked questions

What route does flight number UA4555 take?
Flight number UA4555 operates directly from ORD to TYS. During this trip, expect to be in the air for 1 hour and 42 minutes. It pays to book ahead to get your favorite seat.
What terminal does UA4555 fly out of?
Flight number UA4555 runs between ORD and Knoxville Airport, and passengers traveling on this flight normally board the aircraft from Terminal 1.
What kind of plane is on flight number UA4555?
The route for UA4555 is most commonly O'Hare Intl. Airport (ORD) to Knoxville, TN Airport (TYS-McGhee Tyson), and the Canadair (Bombardier) Regional Jet 550 is the aircraft model you're likely to be taking off on.
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 UA4555 flight with Travelocity, please visit our Customer Service Portal.