United Flight NK4535 Deals & Information (2025/2026)

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United Flight 4535 Route Deals From $74

The cheapest prices found with in the last 7 days for return flights were $110 and $74 for one-way flights to Pittsburgh Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 2 - Tue, Sep 16
EWR
Newark Liberty Intl. Airport
PIT
Pittsburgh Intl.
$110 Roundtrip, found 3 hours ago
$110
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Sep 2 from Newark Liberty Intl. Airport to Pittsburgh Intl., returning Tue, Sep 16, priced at $110 found 3 hours ago
Sat, Sep 13 - Mon, Sep 15
EWR
Newark Liberty Intl. Airport
PIT
Pittsburgh Intl.
$113 Roundtrip, found 4 days ago
$113
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 13 from Newark Liberty Intl. Airport to Pittsburgh Intl., returning Mon, Sep 15, priced at $113 found 4 days ago
Sat, Sep 13 - Mon, Sep 15
EWR
Newark Liberty Intl. Airport
PIT
Pittsburgh Intl.
$120 Roundtrip, found 4 days ago
$120
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 13 from Newark Liberty Intl. Airport to Pittsburgh Intl., returning Mon, Sep 15, priced at $120 found 4 days ago
Fri, Sep 26 - Sun, Sep 28
EWR
Newark Liberty Intl. Airport
PIT
Pittsburgh Intl.
$121 Roundtrip, found 8 hours ago
$121
Roundtrip
found 8 hours ago
Select United flight, departing Fri, Sep 26 from Newark Liberty Intl. Airport to Pittsburgh Intl., returning Sun, Sep 28, priced at $121 found 8 hours ago
Tue, Sep 2 - Tue, Sep 16
EWR
Newark Liberty Intl. Airport
PIT
Pittsburgh Intl.
$123 Roundtrip, found 3 hours ago
$123
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Sep 2 from Newark Liberty Intl. Airport to Pittsburgh Intl., returning Tue, Sep 16, priced at $123 found 3 hours ago

Frequently asked questions

What route does flight number UA4535 take?
UA4535 flies directly from GSP to O'Hare Airport in about 2 hours and 11 minutes. It can be used on other routes though, some of which may be multi-stop journeys. Keep this in mind when locking in your seat to avoid any confusion.
What kind of plane is on flight number UA4535?
UA4535 is a flight number that's used on multiple routes. If you're traveling on its most popular one, GSP to O'Hare Intl. Airport (ORD), chances are you'll be climbing 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 UA4535 flight with Travelocity, please visit our Customer Service Portal.