United Flight 4397 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

United Flight 4397 Route Deals From $139

The cheapest prices found with in the last 7 days for return flights were $909 and $139 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 3 - Thu, Sep 4
ACK
Nantucket Memorial
EWR
Newark Liberty Intl. Airport
$909 Roundtrip, found 2 days ago
$909
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 3 from Nantucket Memorial to Newark Liberty Intl. Airport, returning Thu, Sep 4, priced at $909 found 2 days ago
Wed, Sep 3 - Thu, Sep 4
ACK
Nantucket Memorial
EWR
Newark Liberty Intl. Airport
$926 Roundtrip, found 2 days ago
$926
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 3 from Nantucket Memorial to Newark Liberty Intl. Airport, returning Thu, Sep 4, priced at $926 found 2 days ago
Wed, Sep 3 - Thu, Sep 4
ACK
Nantucket Memorial
EWR
Newark Liberty Intl. Airport
$991 Roundtrip, found 2 days ago
$991
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 3 from Nantucket Memorial to Newark Liberty Intl. Airport, returning Thu, Sep 4, priced at $991 found 2 days ago
Wed, Sep 3 - Thu, Sep 4
ACK
Nantucket Memorial
EWR
Newark Liberty Intl. Airport
$1,008 Roundtrip, found 2 days ago
$1,008
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 3 from Nantucket Memorial to Newark Liberty Intl. Airport, returning Thu, Sep 4, priced at $1,008 found 2 days ago
Wed, Sep 3 - Thu, Sep 4
ACK
Nantucket Memorial
EWR
Newark Liberty Intl. Airport
$1,021 Roundtrip, found 2 days ago
$1,021
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 3 from Nantucket Memorial to Newark Liberty Intl. Airport, returning Thu, Sep 4, priced at $1,021 found 2 days ago
Wed, Sep 3 - Thu, Sep 4
ACK
Nantucket Memorial
EWR
Newark Liberty Intl. Airport
$1,038 Roundtrip, found 2 days ago
$1,038
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 3 from Nantucket Memorial to Newark Liberty Intl. Airport, returning Thu, Sep 4, priced at $1,038 found 2 days ago
Wed, Sep 3 - Thu, Sep 4
ACK
Nantucket Memorial
EWR
Newark Liberty Intl. Airport
$1,054 Roundtrip, found 2 days ago
$1,054
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 3 from Nantucket Memorial to Newark Liberty Intl. Airport, returning Thu, Sep 4, priced at $1,054 found 2 days ago
Wed, Sep 3 - Thu, Sep 4
ACK
Nantucket Memorial
EWR
Newark Liberty Intl. Airport
$1,059 Roundtrip, found 2 days ago
$1,059
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 3 from Nantucket Memorial to Newark Liberty Intl. Airport, returning Thu, Sep 4, priced at $1,059 found 2 days ago
Wed, Sep 3 - Thu, Sep 4
ACK
Nantucket Memorial
EWR
Newark Liberty Intl. Airport
$1,071 Roundtrip, found 2 days ago
$1,071
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 3 from Nantucket Memorial to Newark Liberty Intl. Airport, returning Thu, Sep 4, priced at $1,071 found 2 days ago
Wed, Sep 3 - Thu, Sep 4
ACK
Nantucket Memorial
EWR
Newark Liberty Intl. Airport
$1,076 Roundtrip, found 2 days ago
$1,076
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 3 from Nantucket Memorial to Newark Liberty Intl. Airport, returning Thu, Sep 4, priced at $1,076 found 2 days ago

Frequently asked questions

What route does flight number UA4397 take?
UA4397 is used on a number of routes. Most often, UA4397 flies straight from O'Hare Intl. Airport (ORD) to Harrisburg, PA Airport (MDT-Harrisburg Intl.). If this is your route, you'll be flying for roughly 1 hour and 55 minutes.
How often is UA4397 on time?
If you're flying with United Airlines flight number UA4397 from O'Hare Airport to Harrisburg Intl. Airport, it's nice knowing that flights run according to schedule 93% of the time. In the event that a flight runs behind schedule, it should only be delayed by around 25 minutes. Thanks to this airline's high standards, this trip has a 3.4-star rating.
What terminal does UA4397 fly out of?
Terminal 1 is where you'll likely board from if you're booked on a flight leaving from ORD. O'Hare Airport to MDT is the most popular route for flight number UA4397.
What kind of plane is on flight number UA4397?
It's possible you'll be taking off on a Canadair (Bombardier) Regional Jet 550 if you're going from O'Hare Intl. Airport (ORD) to Harrisburg Intl. Airport, one of several routes used for flight number UA4397.
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 UA4397 flight with Travelocity, please visit our Customer Service Portal.