United Flight 3597 Deals & Information (2026/2027)

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United Flight 3597 Route Deals From $147

The cheapest prices found with in the last 7 days for return flights were $290 and $147 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Dec 8 - Fri, Dec 11
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$290 Roundtrip, found 1 day ago
$290
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 8 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Fri, Dec 11, priced at $290 found 1 day ago
Fri, Jan 29 - Mon, Feb 1
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$293 Roundtrip, found 6 hours ago
$293
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Jan 29 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Mon, Feb 1, priced at $293 found 6 hours ago
Tue, Dec 8 - Fri, Dec 11
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$300 Roundtrip, found 1 day ago
$300
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 8 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Fri, Dec 11, priced at $300 found 1 day ago
Fri, Jan 29 - Mon, Feb 1
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$303 Roundtrip, found 6 hours ago
$303
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Jan 29 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Mon, Feb 1, priced at $303 found 6 hours ago
Mon, Dec 7 - Sat, Dec 12
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$309 Roundtrip, found 16 hours ago
$309
Roundtrip
found 16 hours ago
Select United flight, departing Mon, Dec 7 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Sat, Dec 12, priced at $309 found 16 hours ago
Sat, Dec 12 - Mon, Dec 14
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$311 Roundtrip, found 1 day ago
$311
Roundtrip
found 1 day ago
Select United flight, departing Sat, Dec 12 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Mon, Dec 14, priced at $311 found 1 day ago
Mon, Feb 22 - Sat, Feb 27
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$312 Roundtrip, found 1 day ago
$312
Roundtrip
found 1 day ago
Select United flight, departing Mon, Feb 22 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Sat, Feb 27, priced at $312 found 1 day ago
Mon, Dec 7 - Sat, Dec 12
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$313 Roundtrip, found 16 hours ago
$313
Roundtrip
found 16 hours ago
Select United flight, departing Mon, Dec 7 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Sat, Dec 12, priced at $313 found 16 hours ago
Tue, Dec 8 - Fri, Dec 11
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 8 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Fri, Dec 11, priced at $314 found 1 day ago
Tue, Dec 1 - Sat, Dec 5
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$318 Roundtrip, found 1 day ago
$318
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 1 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Sat, Dec 5, priced at $318 found 1 day 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.