United Flight 3597 Deals & Information (2026/2027)

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United Flight 3597 Route Deals From $136

The cheapest prices found with in the last 7 days for return flights were $271 and $136 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 1 - Mon, Dec 7
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$271 Roundtrip, found 3 days ago
$271
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 1 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Mon, Dec 7, priced at $271 found 3 days ago
Tue, Dec 1 - Mon, Dec 7
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$281 Roundtrip, found 3 days ago
$281
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 1 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Mon, Dec 7, priced at $281 found 3 days ago
Tue, Dec 1 - Mon, Dec 7
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$287 Roundtrip, found 3 days ago
$287
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 1 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Mon, Dec 7, priced at $287 found 3 days ago
Tue, Nov 17 - Thu, Nov 19
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 Tue, Nov 17 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Thu, Nov 19, priced at $291 found 6 days ago
Tue, Dec 1 - Mon, Dec 7
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$294 Roundtrip, found 3 days ago
$294
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 1 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Mon, Dec 7, priced at $294 found 3 days ago
Tue, Dec 1 - Mon, Dec 7
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$295 Roundtrip, found 3 days ago
$295
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 1 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Mon, Dec 7, priced at $295 found 3 days ago
Wed, Nov 25 - Thu, Nov 26
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$299 Roundtrip, found 4 days ago
$299
Roundtrip
found 4 days ago
Select United flight, departing Wed, Nov 25 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Thu, Nov 26, priced at $299 found 4 days ago
Tue, Nov 17 - Thu, Nov 19
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$305 Roundtrip, found 6 days ago
$305
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 17 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Thu, Nov 19, priced at $305 found 6 days ago
Wed, Nov 25 - Thu, Nov 26
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$307 Roundtrip, found 4 days ago
$307
Roundtrip
found 4 days ago
Select United flight, departing Wed, Nov 25 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Thu, Nov 26, priced at $307 found 4 days ago
Wed, Nov 25 - Thu, Nov 26
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$314 Roundtrip, found 4 days ago
$314
Roundtrip
found 4 days ago
Select United flight, departing Wed, Nov 25 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Thu, Nov 26, priced at $314 found 4 days 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.