United Flight 478 Deals & Information (2026/2027)

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United Flight 478 Route Deals From $279

The cheapest prices found with in the last 7 days for return flights were $325 and $279 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Dec 24 - Tue, Dec 29
BIL
Logan Intl.
DEN
Denver Intl.
$325 Roundtrip, found 3 days ago
$325
Roundtrip
found 3 days ago
Select United flight, departing Thu, Dec 24 from Logan Intl. to Denver Intl., returning Tue, Dec 29, priced at $325 found 3 days ago
Tue, Mar 16 - Sat, Apr 3
BIL
Logan Intl.
DEN
Denver Intl.
$329 Roundtrip, found 1 day ago
$329
Roundtrip
found 1 day ago
Select United flight, departing Tue, Mar 16 from Logan Intl. to Denver Intl., returning Sat, Apr 3, priced at $329 found 1 day ago
Tue, Dec 15 - Sun, Dec 20
BIL
Logan Intl.
DEN
Denver Intl.
$335 Roundtrip, found 2 days ago
$335
Roundtrip
found 2 days ago
Select United flight, departing Tue, Dec 15 from Logan Intl. to Denver Intl., returning Sun, Dec 20, priced at $335 found 2 days ago
Wed, Dec 23 - Mon, Dec 28
BIL
Logan Intl.
DEN
Denver Intl.
$340 Roundtrip, found 3 days ago
$340
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 23 from Logan Intl. to Denver Intl., returning Mon, Dec 28, priced at $340 found 3 days ago
Sun, Nov 15 - Sun, Nov 22
BIL
Logan Intl.
DEN
Denver Intl.
$342 Roundtrip, found 6 days ago
$342
Roundtrip
found 6 days ago
Select United flight, departing Sun, Nov 15 from Logan Intl. to Denver Intl., returning Sun, Nov 22, priced at $342 found 6 days ago
Thu, Jun 17 - Sun, Jun 20
BIL
Logan Intl.
DEN
Denver Intl.
$346 Roundtrip, found 4 days ago
$346
Roundtrip
found 4 days ago
Select United flight, departing Thu, Jun 17 from Logan Intl. to Denver Intl., returning Sun, Jun 20, priced at $346 found 4 days ago
Tue, Dec 22 - Wed, Dec 30
BIL
Logan Intl.
DEN
Denver Intl.
$349 Roundtrip, found 6 days ago
$349
Roundtrip
found 6 days ago
Select United flight, departing Tue, Dec 22 from Logan Intl. to Denver Intl., returning Wed, Dec 30, priced at $349 found 6 days ago
Wed, Dec 23 - Mon, Dec 28
BIL
Logan Intl.
DEN
Denver Intl.
$351 Roundtrip, found 3 days ago
$351
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 23 from Logan Intl. to Denver Intl., returning Mon, Dec 28, priced at $351 found 3 days ago
Tue, Dec 22 - Wed, Dec 30
BIL
Logan Intl.
DEN
Denver Intl.
$352 Roundtrip, found 6 days ago
$352
Roundtrip
found 6 days ago
Select United flight, departing Tue, Dec 22 from Logan Intl. to Denver Intl., returning Wed, Dec 30, priced at $352 found 6 days ago
Thu, Dec 24 - Sun, Dec 27
BIL
Logan Intl.
DEN
Denver Intl.
$363 Roundtrip, found 17 hours ago
$363
Roundtrip
found 17 hours ago
Select United flight, departing Thu, Dec 24 from Logan Intl. to Denver Intl., returning Sun, Dec 27, priced at $363 found 17 hours ago
Mon, Nov 23 - Wed, Nov 25
BIL
Logan Intl.
DEN
Denver Intl.
$366 Roundtrip, found 2 days ago
$366
Roundtrip
found 2 days ago
Select United flight, departing Mon, Nov 23 from Logan Intl. to Denver Intl., returning Wed, Nov 25, priced at $366 found 2 days ago
Wed, Dec 23 - Mon, Dec 28
BIL
Logan Intl.
DEN
Denver Intl.
$372 Roundtrip, found 3 days ago
$372
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 23 from Logan Intl. to Denver Intl., returning Mon, Dec 28, priced at $372 found 3 days ago
Mon, Nov 23 - Wed, Nov 25
BIL
Logan Intl.
DEN
Denver Intl.
$374 Roundtrip, found 2 days ago
$374
Roundtrip
found 2 days ago
Select United flight, departing Mon, Nov 23 from Logan Intl. to Denver Intl., returning Wed, Nov 25, priced at $374 found 2 days ago
Wed, Dec 23 - Mon, Dec 28
BIL
Logan Intl.
DEN
Denver Intl.
$378 Roundtrip, found 3 days ago
$378
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 23 from Logan Intl. to Denver Intl., returning Mon, Dec 28, priced at $378 found 3 days ago
Wed, Dec 23 - Mon, Dec 28
BIL
Logan Intl.
DEN
Denver Intl.
$383 Roundtrip, found 3 days ago
$383
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 23 from Logan Intl. to Denver Intl., returning Mon, Dec 28, priced at $383 found 3 days ago
Sun, Nov 15 - Sun, Nov 22
BIL
Logan Intl.
DEN
Denver Intl.
$386 Roundtrip, found 6 days ago
$386
Roundtrip
found 6 days ago
Select United flight, departing Sun, Nov 15 from Logan Intl. to Denver Intl., returning Sun, Nov 22, priced at $386 found 6 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.