United Flight 3597 Deals & Information (2026/2027)

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United Flight 3597 Route Deals From $148

The cheapest prices found with in the last 7 days for return flights were $291 and $148 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Dec 5 - Wed, Dec 9
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$291 Roundtrip, found 6 days ago
$291
Roundtrip
found 6 days ago
Select United flight, departing Sat, Dec 5 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Wed, Dec 9, priced at $291 found 6 days ago
Thu, Oct 22 - Tue, Oct 27
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$293 Roundtrip, found 1 day ago
$293
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 22 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Tue, Oct 27, priced at $293 found 1 day ago
Sat, Nov 14 - Mon, Nov 16
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$297 Roundtrip, found 18 hours ago
$297
Roundtrip
found 18 hours ago
Select United flight, departing Sat, Nov 14 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Mon, Nov 16, priced at $297 found 18 hours ago
Sat, Nov 14 - Mon, Nov 16
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$307 Roundtrip, found 18 hours ago
$307
Roundtrip
found 18 hours ago
Select United flight, departing Sat, Nov 14 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Mon, Nov 16, priced at $307 found 18 hours ago
Thu, Oct 22 - Tue, Oct 27
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$316 Roundtrip, found 1 day ago
$316
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 22 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Tue, Oct 27, priced at $316 found 1 day ago
Thu, Oct 22 - Tue, Oct 27
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$317 Roundtrip, found 1 day ago
$317
Roundtrip
found 1 day ago
Select United flight, departing Thu, Oct 22 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Tue, Oct 27, priced at $317 found 1 day ago
Sat, Nov 14 - Mon, Nov 16
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$318 Roundtrip, found 18 hours ago
$318
Roundtrip
found 18 hours ago
Select United flight, departing Sat, Nov 14 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Mon, Nov 16, priced at $318 found 18 hours ago

Frequently asked questions

What route does flight number UA3597 take?
UA3597 serves multiple routes, but the most common is between O'Hare Airport and Adams Field. If you manage to score a direct flight, you'll stroll through arrivals in approximately 1 hour and 57 minutes. Multi-stop flights can also travel under this number, as can flights on other routes.
What terminal does UA3597 fly out of?
UA3597 flights from Chicago, IL Airport (ORD-O'Hare Intl.) usually head off from Terminal 2. This flight number runs on several different routes, but the most frequented one is Chicago, IL Airport (ORD-O'Hare Intl.) to Clinton National Airport Airport (LIT).
What kind of plane is on flight number UA3597?
UA3597 is a flight number that serves multiple routes. If you have a ticket on the most popular one, Chicago, IL Airport (ORD-O'Hare Intl.) to Little Rock, AR (LIT-Clinton National Airport), there's a good chance you'll be hopping on board an Embraer 175.
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 UA3597 flight with Travelocity, please visit our Customer Service Portal.