United Flight 478 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 $214

The cheapest prices found with in the last 7 days for return flights were $189 and $214 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, May 11 - Sat, May 16
BIL
Logan Intl.
DEN
Denver Intl.
$189 Roundtrip, found 4 hours ago
$189
Roundtrip
found 4 hours ago
Select United flight, departing Mon, May 11 from Logan Intl. to Denver Intl., returning Sat, May 16, priced at $189 found 4 hours ago
Fri, Jan 9 - Mon, Jan 12
BIL
Logan Intl.
DEN
Denver Intl.
$192 Roundtrip, found 3 days ago
$192
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 9 from Logan Intl. to Denver Intl., returning Mon, Jan 12, priced at $192 found 3 days ago
Thu, Jan 8 - Sun, Jan 11
BIL
Logan Intl.
DEN
Denver Intl.
$193 Roundtrip, found 8 hours ago
$193
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Jan 8 from Logan Intl. to Denver Intl., returning Sun, Jan 11, priced at $193 found 8 hours ago
Wed, Dec 24 - Fri, Dec 26
BIL
Logan Intl.
DEN
Denver Intl.
$193 Roundtrip, found 3 days ago
$193
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 24 from Logan Intl. to Denver Intl., returning Fri, Dec 26, priced at $193 found 3 days ago
Thu, Jan 8 - Sun, Jan 11
BIL
Logan Intl.
DEN
Denver Intl.
$194 Roundtrip, found 8 hours ago
$194
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Jan 8 from Logan Intl. to Denver Intl., returning Sun, Jan 11, priced at $194 found 8 hours ago
Fri, Feb 20 - Mon, Feb 23
BIL
Logan Intl.
DEN
Denver Intl.
$199 Roundtrip, found 2 days ago
$199
Roundtrip
found 2 days ago
Select United flight, departing Fri, Feb 20 from Logan Intl. to Denver Intl., returning Mon, Feb 23, priced at $199 found 2 days ago
Fri, Jan 16 - Mon, Jan 26
BIL
Logan Intl.
DEN
Denver Intl.
$203 Roundtrip, found 1 day ago
$203
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jan 16 from Logan Intl. to Denver Intl., returning Mon, Jan 26, priced at $203 found 1 day ago
Mon, May 11 - Sat, May 16
BIL
Logan Intl.
DEN
Denver Intl.
$204 Roundtrip, found 4 hours ago
$204
Roundtrip
found 4 hours ago
Select United flight, departing Mon, May 11 from Logan Intl. to Denver Intl., returning Sat, May 16, priced at $204 found 4 hours ago
Fri, Jan 16 - Mon, Jan 26
BIL
Logan Intl.
DEN
Denver Intl.
$206 Roundtrip, found 1 day ago
$206
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jan 16 from Logan Intl. to Denver Intl., returning Mon, Jan 26, priced at $206 found 1 day ago
Fri, Jan 9 - Mon, Jan 12
BIL
Logan Intl.
DEN
Denver Intl.
$207 Roundtrip, found 3 days ago
$207
Roundtrip
found 3 days ago
Select United flight, departing Fri, Jan 9 from Logan Intl. to Denver Intl., returning Mon, Jan 12, priced at $207 found 3 days ago
Wed, Dec 24 - Fri, Dec 26
BIL
Logan Intl.
DEN
Denver Intl.
$209 Roundtrip, found 3 days ago
$209
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 24 from Logan Intl. to Denver Intl., returning Fri, Dec 26, priced at $209 found 3 days ago
Thu, Jan 15 - Sun, Jan 18
BIL
Logan Intl.
DEN
Denver Intl.
$209 Roundtrip, found 8 hours ago
$209
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Jan 15 from Logan Intl. to Denver Intl., returning Sun, Jan 18, priced at $209 found 8 hours ago
Mon, May 11 - Sat, May 16
BIL
Logan Intl.
DEN
Denver Intl.
$219 Roundtrip, found 4 hours ago
$219
Roundtrip
found 4 hours ago
Select United flight, departing Mon, May 11 from Logan Intl. to Denver Intl., returning Sat, May 16, priced at $219 found 4 hours ago
Thu, Jan 15 - Sat, Jan 24
BIL
Logan Intl.
DEN
Denver Intl.
$220 Roundtrip, found 1 day ago
$220
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jan 15 from Logan Intl. to Denver Intl., returning Sat, Jan 24, priced at $220 found 1 day ago
Sat, Apr 25 - Mon, Apr 27
BIL
Logan Intl.
DEN
Denver Intl.
$221 Roundtrip, found 3 days ago
$221
Roundtrip
found 3 days ago
Select United flight, departing Sat, Apr 25 from Logan Intl. to Denver Intl., returning Mon, Apr 27, priced at $221 found 3 days ago
Thu, Jan 8 - Sun, Jan 11
BIL
Logan Intl.
DEN
Denver Intl.
$222 Roundtrip, found 8 hours ago
$222
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Jan 8 from Logan Intl. to Denver Intl., returning Sun, Jan 11, priced at $222 found 8 hours ago
Thu, Jan 8 - Sun, Jan 11
BIL
Logan Intl.
DEN
Denver Intl.
$224 Roundtrip, found 8 hours ago
$224
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Jan 8 from Logan Intl. to Denver Intl., returning Sun, Jan 11, priced at $224 found 8 hours ago
Wed, Dec 24 - Fri, Dec 26
BIL
Logan Intl.
DEN
Denver Intl.
$225 Roundtrip, found 3 days ago
$225
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 24 from Logan Intl. to Denver Intl., returning Fri, Dec 26, priced at $225 found 3 days ago
Wed, Feb 11 - Sun, Feb 22
BIL
Logan Intl.
DEN
Denver Intl.
$230 Roundtrip, found 3 days ago
$230
Roundtrip
found 3 days ago
Select United flight, departing Wed, Feb 11 from Logan Intl. to Denver Intl., returning Sun, Feb 22, priced at $230 found 3 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.