United Flight UA478 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 478 Route Deals From $218

The cheapest prices found with in the last 7 days for return flights were $189 and $218 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 31 - Mon, Nov 3
BIL
Logan Intl.
DEN
Denver Intl.
$189 Roundtrip, found 1 day ago
$189
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 31 from Logan Intl. to Denver Intl., returning Mon, Nov 3, priced at $189 found 1 day ago
Wed, Jul 23 - Sat, Jul 26
BIL
Logan Intl.
DEN
Denver Intl.
$193 Roundtrip, found 2 days ago
$193
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 23 from Logan Intl. to Denver Intl., returning Sat, Jul 26, priced at $193 found 2 days ago
Sat, Jul 12 - Sun, Jul 13
BIL
Logan Intl.
DEN
Denver Intl.
$193 Roundtrip, found 6 days ago
$193
Roundtrip
found 6 days ago
Select United flight, departing Sat, Jul 12 from Logan Intl. to Denver Intl., returning Sun, Jul 13, priced at $193 found 6 days ago
Fri, Sep 26 - Wed, Oct 1
BIL
Logan Intl.
DEN
Denver Intl.
$194 Roundtrip, found 22 hours ago
$194
Roundtrip
found 22 hours ago
Select United flight, departing Fri, Sep 26 from Logan Intl. to Denver Intl., returning Wed, Oct 1, priced at $194 found 22 hours ago
Wed, Jul 23 - Sat, Jul 26
BIL
Logan Intl.
DEN
Denver Intl.
$198 Roundtrip, found 2 days ago
$198
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 23 from Logan Intl. to Denver Intl., returning Sat, Jul 26, priced at $198 found 2 days ago
Sat, Jul 12 - Sun, Jul 13
BIL
Logan Intl.
DEN
Denver Intl.
$198 Roundtrip, found 6 days ago
$198
Roundtrip
found 6 days ago
Select United flight, departing Sat, Jul 12 from Logan Intl. to Denver Intl., returning Sun, Jul 13, priced at $198 found 6 days ago
Thu, Sep 4 - Tue, Sep 16
BIL
Logan Intl.
DEN
Denver Intl.
$199 Roundtrip, found 5 days ago
$199
Roundtrip
found 5 days ago
Select United flight, departing Thu, Sep 4 from Logan Intl. to Denver Intl., returning Tue, Sep 16, priced at $199 found 5 days ago
Wed, Jul 23 - Sat, Jul 26
BIL
Logan Intl.
DEN
Denver Intl.
$203 Roundtrip, found 2 days ago
$203
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 23 from Logan Intl. to Denver Intl., returning Sat, Jul 26, priced at $203 found 2 days ago
Fri, Oct 31 - Mon, Nov 3
BIL
Logan Intl.
DEN
Denver Intl.
$219 Roundtrip, found 1 day ago
$219
Roundtrip
found 1 day ago
Select United flight, departing Fri, Oct 31 from Logan Intl. to Denver Intl., returning Mon, Nov 3, priced at $219 found 1 day ago
Fri, Sep 26 - Wed, Oct 1
BIL
Logan Intl.
DEN
Denver Intl.
$224 Roundtrip, found 22 hours ago
$224
Roundtrip
found 22 hours ago
Select United flight, departing Fri, Sep 26 from Logan Intl. to Denver Intl., returning Wed, Oct 1, priced at $224 found 22 hours ago
Wed, Jul 23 - Sat, Jul 26
BIL
Logan Intl.
DEN
Denver Intl.
$228 Roundtrip, found 2 days ago
$228
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 23 from Logan Intl. to Denver Intl., returning Sat, Jul 26, priced at $228 found 2 days ago
Fri, Sep 26 - Wed, Oct 1
BIL
Logan Intl.
DEN
Denver Intl.
$249 Roundtrip, found 22 hours ago
$249
Roundtrip
found 22 hours ago
Select United flight, departing Fri, Sep 26 from Logan Intl. to Denver Intl., returning Wed, Oct 1, priced at $249 found 22 hours ago
Sat, Jul 12 - Sun, Jul 13
BIL
Logan Intl.
DEN
Denver Intl.
$254 Roundtrip, found 6 days ago
$254
Roundtrip
found 6 days ago
Select United flight, departing Sat, Jul 12 from Logan Intl. to Denver Intl., returning Sun, Jul 13, priced at $254 found 6 days ago
Fri, Jul 18 - Mon, Jul 21
BIL
Logan Intl.
DEN
Denver Intl.
$258 Roundtrip, found 4 days ago
$258
Roundtrip
found 4 days ago
Select United flight, departing Fri, Jul 18 from Logan Intl. to Denver Intl., returning Mon, Jul 21, priced at $258 found 4 days ago
Wed, Jul 23 - Sat, Jul 26
BIL
Logan Intl.
DEN
Denver Intl.
$259 Roundtrip, found 2 days ago
$259
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 23 from Logan Intl. to Denver Intl., returning Sat, Jul 26, priced at $259 found 2 days ago
Fri, Jul 18 - Mon, Jul 21
BIL
Logan Intl.
DEN
Denver Intl.
$263 Roundtrip, found 4 days ago
$263
Roundtrip
found 4 days ago
Select United flight, departing Fri, Jul 18 from Logan Intl. to Denver Intl., returning Mon, Jul 21, priced at $263 found 4 days ago
Wed, Jul 23 - Sat, Jul 26
BIL
Logan Intl.
DEN
Denver Intl.
$264 Roundtrip, found 2 days ago
$264
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jul 23 from Logan Intl. to Denver Intl., returning Sat, Jul 26, priced at $264 found 2 days ago

Frequently asked questions

What route does flight number UA478 take?
Flight number UA478 flies directly from Denver, CO Airport (DEN-Denver Intl.) to ORD. During this journey, you can expect to be in the air for around 2 hours and 25 minutes. It's wise to book ahead to secure your favorite seat.
How often is UA478 on time?
If you're traveling on United Airlines flight number UA478 between Denver Intl. Airport (DEN) and O'Hare Intl. Airport (ORD), 86% of these trips run on schedule. In the rare event of a delay, the wait time is about 42 minutes on average. Thanks to the air carrier's quality service, this service has a star rating of 2.4.
What kind of plane is on flight number UA478?
Expect to step aboard a Boeing 737 MAX 9 if your flight number is UA478. Most services from DIA airport to O'Hare Airport use this aircraft type.
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 UA478 flight with Travelocity, please visit our Customer Service Portal.