United Flight 478 Deals & Information (2026/2027)

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United Flight 478 Route Deals From $220

The cheapest prices found with in the last 7 days for return flights were $189 and $220 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Feb 13 - Tue, Feb 17
BIL
Logan Intl.
DEN
Denver Intl.
$189 Roundtrip, found 13 hours ago
$189
Roundtrip
found 13 hours ago
Select United flight, departing Fri, Feb 13 from Logan Intl. to Denver Intl., returning Tue, Feb 17, priced at $189 found 13 hours ago
Fri, Feb 20 - Mon, Feb 23
BIL
Logan Intl.
DEN
Denver Intl.
$194 Roundtrip, just found
$194
Roundtrip
just found
Select United flight, departing Fri, Feb 20 from Logan Intl. to Denver Intl., returning Mon, Feb 23, priced at $194 just found
Fri, Feb 13 - Tue, Feb 17
BIL
Logan Intl.
DEN
Denver Intl.
$198 Roundtrip, found 13 hours ago
$198
Roundtrip
found 13 hours ago
Select United flight, departing Fri, Feb 13 from Logan Intl. to Denver Intl., returning Tue, Feb 17, priced at $198 found 13 hours ago
Fri, Mar 27 - Mon, Mar 30
BIL
Logan Intl.
DEN
Denver Intl.
$201 Roundtrip, found 2 days ago
$201
Roundtrip
found 2 days ago
Select United flight, departing Fri, Mar 27 from Logan Intl. to Denver Intl., returning Mon, Mar 30, priced at $201 found 2 days ago
Fri, Feb 20 - Mon, Feb 23
BIL
Logan Intl.
DEN
Denver Intl.
$206 Roundtrip, just found
$206
Roundtrip
just found
Select United flight, departing Fri, Feb 20 from Logan Intl. to Denver Intl., returning Mon, Feb 23, priced at $206 just found
Fri, Feb 13 - Tue, Feb 17
BIL
Logan Intl.
DEN
Denver Intl.
$218 Roundtrip, found 13 hours ago
$218
Roundtrip
found 13 hours ago
Select United flight, departing Fri, Feb 13 from Logan Intl. to Denver Intl., returning Tue, Feb 17, priced at $218 found 13 hours ago
Fri, Feb 13 - Tue, Feb 17
BIL
Logan Intl.
DEN
Denver Intl.
$222 Roundtrip, found 13 hours ago
$222
Roundtrip
found 13 hours ago
Select United flight, departing Fri, Feb 13 from Logan Intl. to Denver Intl., returning Tue, Feb 17, priced at $222 found 13 hours ago
Fri, Jan 30 - Wed, Feb 4
BIL
Logan Intl.
DEN
Denver Intl.
$222 Roundtrip, found 3 days ago
$222
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 30 from Logan Intl. to Denver Intl., returning Wed, Feb 4, priced at $222 found 3 days ago
Fri, Feb 13 - Tue, Feb 17
BIL
Logan Intl.
DEN
Denver Intl.
$227 Roundtrip, found 13 hours ago
$227
Roundtrip
found 13 hours ago
Select United flight, departing Fri, Feb 13 from Logan Intl. to Denver Intl., returning Tue, Feb 17, priced at $227 found 13 hours ago
Fri, Feb 13 - Tue, Feb 17
BIL
Logan Intl.
DEN
Denver Intl.
$230 Roundtrip, found 13 hours ago
$230
Roundtrip
found 13 hours ago
Select United flight, departing Fri, Feb 13 from Logan Intl. to Denver Intl., returning Tue, Feb 17, priced at $230 found 13 hours ago
Fri, Feb 13 - Tue, Feb 17
BIL
Logan Intl.
DEN
Denver Intl.
$234 Roundtrip, found 13 hours ago
$234
Roundtrip
found 13 hours ago
Select United flight, departing Fri, Feb 13 from Logan Intl. to Denver Intl., returning Tue, Feb 17, priced at $234 found 13 hours ago
Fri, Sep 4 - Mon, Sep 7
BIL
Logan Intl.
DEN
Denver Intl.
$239 Roundtrip, found 5 days ago
$239
Roundtrip
found 5 days ago
Select United flight, departing Fri, Sep 4 from Logan Intl. to Denver Intl., returning Mon, Sep 7, priced at $239 found 5 days ago
Fri, Feb 6 - Mon, Feb 9
BIL
Logan Intl.
DEN
Denver Intl.
$241 Roundtrip, found 5 days ago
$241
Roundtrip
found 5 days ago
Select United flight, departing Fri, Feb 6 from Logan Intl. to Denver Intl., returning Mon, Feb 9, priced at $241 found 5 days ago
Thu, Feb 12 - Sun, Feb 15
BIL
Logan Intl.
DEN
Denver Intl.
$242 Roundtrip, found 23 hours ago
$242
Roundtrip
found 23 hours ago
Select United flight, departing Thu, Feb 12 from Logan Intl. to Denver Intl., returning Sun, Feb 15, priced at $242 found 23 hours ago
Fri, Feb 13 - Tue, Feb 17
BIL
Logan Intl.
DEN
Denver Intl.
$243 Roundtrip, found 13 hours ago
$243
Roundtrip
found 13 hours ago
Select United flight, departing Fri, Feb 13 from Logan Intl. to Denver Intl., returning Tue, Feb 17, priced at $243 found 13 hours ago
Fri, Feb 27 - Mon, Mar 2
BIL
Logan Intl.
DEN
Denver Intl.
$245 Roundtrip, found 1 day ago
$245
Roundtrip
found 1 day ago
Select United flight, departing Fri, Feb 27 from Logan Intl. to Denver Intl., returning Mon, Mar 2, priced at $245 found 1 day ago
Fri, May 29 - Sun, May 31
BIL
Logan Intl.
DEN
Denver Intl.
$246 Roundtrip, found 1 day ago
$246
Roundtrip
found 1 day ago
Select United flight, departing Fri, May 29 from Logan Intl. to Denver Intl., returning Sun, May 31, priced at $246 found 1 day ago
Fri, May 29 - Sun, May 31
BIL
Logan Intl.
DEN
Denver Intl.
$248 Roundtrip, found 1 day ago
$248
Roundtrip
found 1 day ago
Select United flight, departing Fri, May 29 from Logan Intl. to Denver Intl., returning Sun, May 31, priced at $248 found 1 day ago
Fri, Feb 6 - Mon, Feb 9
BIL
Logan Intl.
DEN
Denver Intl.
$249 Roundtrip, found 5 days ago
$249
Roundtrip
found 5 days ago
Select United flight, departing Fri, Feb 6 from Logan Intl. to Denver Intl., returning Mon, Feb 9, priced at $249 found 5 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.