United Flight 4579 Deals & Information (2026/2027)

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United Flight 4579 Route Deals From $240

The cheapest prices found with in the last 7 days for return flights were $179 and $240 for one-way flights to Appleton Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$179 Roundtrip, found 2 days ago
$179
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $179 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$190 Roundtrip, found 2 days ago
$190
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $190 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$192 Roundtrip, found 2 days ago
$192
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $192 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$203 Roundtrip, found 2 days ago
$203
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $203 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$213 Roundtrip, found 2 days ago
$213
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $213 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$224 Roundtrip, found 2 days ago
$224
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $224 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$226 Roundtrip, found 2 days ago
$226
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $226 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$239 Roundtrip, found 2 days ago
$239
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $239 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$243 Roundtrip, found 2 days ago
$243
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $243 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$250 Roundtrip, found 2 days ago
$250
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $250 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$252 Roundtrip, found 2 days ago
$252
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $252 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$256 Roundtrip, found 2 days ago
$256
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $256 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$257 Roundtrip, found 2 days ago
$257
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $257 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$263 Roundtrip, found 2 days ago
$263
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $263 found 2 days ago
Wed, Feb 4 - Sat, Feb 14
ORD
O'Hare Intl.
ATW
Appleton Intl.
$273 Roundtrip, found 2 days ago
$273
Roundtrip
found 2 days ago
Select United flight, departing Wed, Feb 4 from O'Hare Intl. to Appleton Intl., returning Sat, Feb 14, priced at $273 found 2 days ago

Frequently asked questions

What route does flight number UA4579 take?
UA4579 is used on multiple routes, but the most common is between EWR and Lambert Field. If you manage to score a direct flight, you'll stroll through arrivals in roughly 2 hours and 42 minutes. Multi-stop flights can also use this number, as can flights on other routes.
What terminal does UA4579 fly out of?
If you're jetting off from EWR, there's a good chance you'll board the aircraft from Terminal C. The most traveled route for flight number UA4579 is Newark, NJ Airport (EWR-Liberty Intl.) to St. Louis, MO Airport (STL-Lambert-St. Louis Intl.), which is a direct flight.
What kind of plane is on flight number UA4579?
You'll probably be boarding the Canadair (Bombardier) Regional Jet 550 if you're on flight UA4579 from Liberty Intl. Airport (EWR) to St. Louis, MO Airport (STL-Lambert-St. Louis Intl.). It's the most commonly used aircraft on this route.
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 UA4579 flight with Travelocity, please visit our Customer Service Portal.