United Flight AA4537 Deals & Information (2025/2026)

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United Flight 4537 Route Deals From $224

The cheapest prices found with in the last 7 days for return flights were $199 and $224 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Dec 20 - Wed, Dec 31
GSO
Piedmont Triad Intl.
ORD
O'Hare Intl.
$199 Roundtrip, found 6 days ago
$199
Roundtrip
found 6 days ago
Select United flight, departing Sat, Dec 20 from Piedmont Triad Intl. to O'Hare Intl., returning Wed, Dec 31, priced at $199 found 6 days ago
Fri, Sep 12 - Tue, Sep 16
GSO
Piedmont Triad Intl.
ORD
O'Hare Intl.
$206 Roundtrip, found 6 days ago
$206
Roundtrip
found 6 days ago
Select United flight, departing Fri, Sep 12 from Piedmont Triad Intl. to O'Hare Intl., returning Tue, Sep 16, priced at $206 found 6 days ago
Fri, Sep 12 - Tue, Sep 16
GSO
Piedmont Triad Intl.
ORD
O'Hare Intl.
$216 Roundtrip, found 6 days ago
$216
Roundtrip
found 6 days ago
Select United flight, departing Fri, Sep 12 from Piedmont Triad Intl. to O'Hare Intl., returning Tue, Sep 16, priced at $216 found 6 days ago
Fri, Sep 12 - Tue, Sep 16
GSO
Piedmont Triad Intl.
ORD
O'Hare Intl.
$238 Roundtrip, found 6 days ago
$238
Roundtrip
found 6 days ago
Select United flight, departing Fri, Sep 12 from Piedmont Triad Intl. to O'Hare Intl., returning Tue, Sep 16, priced at $238 found 6 days ago
Wed, Jul 30 - Tue, Aug 12
GSO
Piedmont Triad Intl.
ORD
O'Hare Intl.
$244 Roundtrip, found 13 hours ago
$244
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Jul 30 from Piedmont Triad Intl. to O'Hare Intl., returning Tue, Aug 12, priced at $244 found 13 hours ago
Fri, Nov 21 - Sun, Nov 23
GSO
Piedmont Triad Intl.
ORD
O'Hare Intl.
$251 Roundtrip, found 1 day ago
$251
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 21 from Piedmont Triad Intl. to O'Hare Intl., returning Sun, Nov 23, priced at $251 found 1 day ago
Wed, Jul 30 - Tue, Aug 12
GSO
Piedmont Triad Intl.
ORD
O'Hare Intl.
$257 Roundtrip, found 13 hours ago
$257
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Jul 30 from Piedmont Triad Intl. to O'Hare Intl., returning Tue, Aug 12, priced at $257 found 13 hours ago
Wed, Jul 30 - Tue, Aug 12
GSO
Piedmont Triad Intl.
ORD
O'Hare Intl.
$268 Roundtrip, found 13 hours ago
$268
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Jul 30 from Piedmont Triad Intl. to O'Hare Intl., returning Tue, Aug 12, priced at $268 found 13 hours ago

Frequently asked questions

What route does flight number UA4537 take?
UA4537 takes numerous routes. The most frequently flown is between O'Hare Airport and Piedmont Triad Intl. Airport (GSO), which flies direct. This service usually takes 1 hour and 48 minutes. That said, you might find other flights with the same number that have one or more stops.
What terminal does UA4537 fly out of?
You'll likely depart from Terminal 1 if you're setting off from O'Hare Airport. Flight number UA4537 serves a variety of routes, but the direct flight between ORD and GSO is the most frequently traveled one.
What kind of plane is on flight number UA4537?
There's every chance you'll be on board a Canadair (Bombardier) Regional Jet 550 if you're flying from Chicago, IL Airport (ORD-O'Hare Intl.) to PTI Airport, the most popular route for flight number UA4537.
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 UA4537 flight with Travelocity, please visit our Customer Service Portal.