United Flight 5478 Deals & Information (2026/2027)

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United Flight 5478 Route Deals From $164

The cheapest prices found with in the last 7 days for return flights were $239 and $164 for one-way flights to O'Hare Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jul 3 - Sun, Jul 5
ATW
Appleton Intl.
ORD
O'Hare Intl.
$239 Roundtrip, found 3 days ago
$239
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jul 3 from Appleton Intl. to O'Hare Intl., returning Sun, Jul 5, priced at $239 found 3 days ago
Fri, Jun 5 - Sun, Jun 7
ATW
Appleton Intl.
ORD
O'Hare Intl.
$245 Roundtrip, found 5 days ago
$245
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jun 5 from Appleton Intl. to O'Hare Intl., returning Sun, Jun 7, priced at $245 found 5 days ago
Fri, Jun 5 - Sun, Jun 7
ATW
Appleton Intl.
ORD
O'Hare Intl.
$260 Roundtrip, found 5 days ago
$260
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jun 5 from Appleton Intl. to O'Hare Intl., returning Sun, Jun 7, priced at $260 found 5 days ago
Fri, Jul 3 - Sun, Jul 5
ATW
Appleton Intl.
ORD
O'Hare Intl.
$269 Roundtrip, found 3 days ago
$269
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jul 3 from Appleton Intl. to O'Hare Intl., returning Sun, Jul 5, priced at $269 found 3 days ago
Fri, Jun 5 - Sun, Jun 7
ATW
Appleton Intl.
ORD
O'Hare Intl.
$275 Roundtrip, found 5 days ago
$275
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jun 5 from Appleton Intl. to O'Hare Intl., returning Sun, Jun 7, priced at $275 found 5 days ago
Fri, Jun 5 - Sun, Jun 7
ATW
Appleton Intl.
ORD
O'Hare Intl.
$294 Roundtrip, found 5 days ago
$294
Roundtrip
found 5 days ago
Select United flight, departing Fri, Jun 5 from Appleton Intl. to O'Hare Intl., returning Sun, Jun 7, priced at $294 found 5 days ago
Fri, Jul 3 - Sun, Jul 5
ATW
Appleton Intl.
ORD
O'Hare Intl.
$299 Roundtrip, found 3 days ago
$299
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jul 3 from Appleton Intl. to O'Hare Intl., returning Sun, Jul 5, priced at $299 found 3 days ago
Fri, Jul 3 - Sun, Jul 5
ATW
Appleton Intl.
ORD
O'Hare Intl.
$309 Roundtrip, found 3 days ago
$309
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jul 3 from Appleton Intl. to O'Hare Intl., returning Sun, Jul 5, priced at $309 found 3 days ago
Fri, Jul 3 - Sun, Jul 5
ATW
Appleton Intl.
ORD
O'Hare Intl.
$311 Roundtrip, found 3 days ago
$311
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jul 3 from Appleton Intl. to O'Hare Intl., returning Sun, Jul 5, priced at $311 found 3 days ago
Fri, May 8 - Mon, May 11
ATW
Appleton Intl.
ORD
O'Hare Intl.
$314 Roundtrip, found 3 days ago
$314
Roundtrip
found 3 days ago
Select United flight, departing Fri, May 8 from Appleton Intl. to O'Hare Intl., returning Mon, May 11, priced at $314 found 3 days ago

Frequently asked questions

What route does flight number UA5478 take?
UA5478 flies direct from Lambert-St. Louis Intl. Airport (STL) to DEN in around 2 hours and 17 minutes. It can sometimes take other routes though, some of which could be multi-stop trips. Keep this in mind when locking in your airfare to avoid any confusion.
What terminal does UA5478 fly out of?
If you're leaving from St. Louis, MO Airport (STL-Lambert-St. Louis Intl.), there's a fair chance you'll board from Terminal 1. The most traveled route for flight number UA5478 is STL to DEN, which is a direct flight.
What kind of plane is on flight number UA5478?
It's highly likely you'll be traveling aboard an Embraer 175 if you've booked a fare on flight number UA5478 from St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) to Denver, CO Airport (DEN-Denver Intl.). This is the most commonly used type of plane on this popular 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 UA5478 flight with Travelocity, please visit our Customer Service Portal.