United Flight 3512 Deals & Information (2026/2027)

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United Flight 3512 Route Deals From $158

The cheapest prices found with in the last 7 days for return flights were $315 and $158 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Dec 9 - Sat, Dec 12
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$315 Roundtrip, found 3 days ago
$315
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 9 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Sat, Dec 12, priced at $315 found 3 days ago
Thu, Dec 24 - Tue, Dec 29
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$330 Roundtrip, found 3 days ago
$330
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 24 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Tue, Dec 29, priced at $330 found 3 days ago
Wed, Dec 9 - Wed, Dec 16
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$331 Roundtrip, found 2 hours ago
$331
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Dec 9 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Wed, Dec 16, priced at $331 found 2 hours ago
Thu, Dec 24 - Tue, Dec 29
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$336 Roundtrip, found 3 days ago
$336
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 24 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Tue, Dec 29, priced at $336 found 3 days ago
Thu, Dec 24 - Tue, Dec 29
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$340 Roundtrip, found 3 days ago
$340
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 24 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Tue, Dec 29, priced at $340 found 3 days ago
Wed, Dec 9 - Wed, Dec 16
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$341 Roundtrip, found 2 hours ago
$341
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Dec 9 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Wed, Dec 16, priced at $341 found 2 hours ago
Wed, Dec 9 - Wed, Dec 16
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$344 Roundtrip, found 2 hours ago
$344
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Dec 9 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Wed, Dec 16, priced at $344 found 2 hours ago
Wed, Dec 9 - Wed, Dec 16
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$348 Roundtrip, found 2 hours ago
$348
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Dec 9 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Wed, Dec 16, priced at $348 found 2 hours ago
Wed, Dec 9 - Wed, Dec 16
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$351 Roundtrip, found 2 hours ago
$351
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Dec 9 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Wed, Dec 16, priced at $351 found 2 hours ago
Wed, Dec 9 - Wed, Dec 16
STL
Lambert-St. Louis Intl.
EWR
Newark Liberty Intl. Airport
$354 Roundtrip, found 2 hours ago
$354
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Dec 9 from Lambert-St. Louis Intl. to Newark Liberty Intl. Airport, returning Wed, Dec 16, priced at $354 found 2 hours ago

Frequently asked questions

What route does flight number UA3512 take?
UA3512 is used on multiple routes, but the most common is between ORD and Dane County Regional Airport (MSN). If your flight is direct, you'll stroll through arrivals in around 1 hour. Multi-stop flights can also use the same number, as can services on other routes.
How often is UA3512 on time?
If you're taking to the skies on United Airlines flight number UA3512 between ORD and Truax Field, allow for a little flexibility within your travel plans — these flights depart on time 50% of the time. In the event that it is delayed, you're likely to wait about 35 minutes. This is the most frequently used route for your trip, and it has a 1.25-star rating.
What terminal does UA3512 fly out of?
Terminal 2 is where you'll most likely take off from if you're booked on a flight from O'Hare Airport. O'Hare Intl. Airport (ORD) to Dane County Regional Airport (MSN) is the most frequently traveled route for flight number UA3512.
What kind of plane is on flight number UA3512?
Chances are you'll be boarding an Embraer 175 if you've booked a fare from Chicago, IL Airport (ORD-O'Hare Intl.) to MSN, the most popular route for flight UA3512.
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 UA3512 flight with Travelocity, please visit our Customer Service Portal.