United Flight 4579 Deals & Information (2025/2026)

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United Flight 4579 Route Deals From $204

The cheapest prices found with in the last 7 days for return flights were $182 and $204 for one-way flights to Appleton Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Nov 7 - Mon, Nov 10
ORD
O'Hare Intl.
ATW
Appleton Intl.
$182 Roundtrip, found 1 day ago
$182
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from O'Hare Intl. to Appleton Intl., returning Mon, Nov 10, priced at $182 found 1 day ago
Fri, Nov 7 - Mon, Nov 10
ORD
O'Hare Intl.
ATW
Appleton Intl.
$189 Roundtrip, found 1 day ago
$189
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from O'Hare Intl. to Appleton Intl., returning Mon, Nov 10, priced at $189 found 1 day ago
Fri, Nov 7 - Mon, Nov 10
ORD
O'Hare Intl.
ATW
Appleton Intl.
$191 Roundtrip, found 1 day ago
$191
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from O'Hare Intl. to Appleton Intl., returning Mon, Nov 10, priced at $191 found 1 day ago
Fri, Nov 7 - Mon, Nov 10
ORD
O'Hare Intl.
ATW
Appleton Intl.
$211 Roundtrip, found 1 day ago
$211
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from O'Hare Intl. to Appleton Intl., returning Mon, Nov 10, priced at $211 found 1 day ago
Fri, Nov 7 - Mon, Nov 10
ORD
O'Hare Intl.
ATW
Appleton Intl.
$217 Roundtrip, found 1 day ago
$217
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from O'Hare Intl. to Appleton Intl., returning Mon, Nov 10, priced at $217 found 1 day ago
Fri, Nov 7 - Mon, Nov 10
ORD
O'Hare Intl.
ATW
Appleton Intl.
$220 Roundtrip, found 1 day ago
$220
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from O'Hare Intl. to Appleton Intl., returning Mon, Nov 10, priced at $220 found 1 day ago
Fri, Nov 7 - Mon, Nov 10
ORD
O'Hare Intl.
ATW
Appleton Intl.
$243 Roundtrip, found 1 day ago
$243
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from O'Hare Intl. to Appleton Intl., returning Mon, Nov 10, priced at $243 found 1 day ago
Fri, Nov 7 - Mon, Nov 10
ORD
O'Hare Intl.
ATW
Appleton Intl.
$247 Roundtrip, found 1 day ago
$247
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from O'Hare Intl. to Appleton Intl., returning Mon, Nov 10, priced at $247 found 1 day ago
Fri, Nov 7 - Mon, Nov 10
ORD
O'Hare Intl.
ATW
Appleton Intl.
$250 Roundtrip, found 1 day ago
$250
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from O'Hare Intl. to Appleton Intl., returning Mon, Nov 10, priced at $250 found 1 day ago
Fri, Nov 7 - Mon, Nov 10
ORD
O'Hare Intl.
ATW
Appleton Intl.
$252 Roundtrip, found 1 day ago
$252
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from O'Hare Intl. to Appleton Intl., returning Mon, Nov 10, priced at $252 found 1 day ago
Fri, Nov 7 - Mon, Nov 10
ORD
O'Hare Intl.
ATW
Appleton Intl.
$253 Roundtrip, found 1 day ago
$253
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from O'Hare Intl. to Appleton Intl., returning Mon, Nov 10, priced at $253 found 1 day 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.