United Flight 478 Deals & Information (2026/2027)

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United Flight 478 Route Deals From $255

The cheapest prices found with in the last 7 days for return flights were $249 and $255 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jun 11 - Tue, Jun 16
BIL
Logan Intl.
DEN
Denver Intl.
$249 Roundtrip, found 1 day ago
$249
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from Logan Intl. to Denver Intl., returning Tue, Jun 16, priced at $249 found 1 day ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$255 Roundtrip, found 2 days ago
$255
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $255 found 2 days ago
Thu, Jun 11 - Tue, Jun 16
BIL
Logan Intl.
DEN
Denver Intl.
$262 Roundtrip, found 1 day ago
$262
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from Logan Intl. to Denver Intl., returning Tue, Jun 16, priced at $262 found 1 day ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$268 Roundtrip, found 2 days ago
$268
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $268 found 2 days ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$285 Roundtrip, found 2 days ago
$285
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $285 found 2 days ago
Tue, Jun 2 - Sat, Jun 6
BIL
Logan Intl.
DEN
Denver Intl.
$286 Roundtrip, found 3 days ago
$286
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jun 2 from Logan Intl. to Denver Intl., returning Sat, Jun 6, priced at $286 found 3 days ago
Thu, Jun 11 - Tue, Jun 16
BIL
Logan Intl.
DEN
Denver Intl.
$287 Roundtrip, found 1 day ago
$287
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from Logan Intl. to Denver Intl., returning Tue, Jun 16, priced at $287 found 1 day ago
Wed, Sep 30 - Tue, Oct 6
BIL
Logan Intl.
DEN
Denver Intl.
$292 Roundtrip, found 4 days ago
$292
Roundtrip
found 4 days ago
Select United flight, departing Wed, Sep 30 from Logan Intl. to Denver Intl., returning Tue, Oct 6, priced at $292 found 4 days ago
Mon, Jun 8 - Sat, Jun 13
BIL
Logan Intl.
DEN
Denver Intl.
$293 Roundtrip, found 6 days ago
$293
Roundtrip
found 6 days ago
Select United flight, departing Mon, Jun 8 from Logan Intl. to Denver Intl., returning Sat, Jun 13, priced at $293 found 6 days ago
Tue, Jun 2 - Tue, Jun 9
BIL
Logan Intl.
DEN
Denver Intl.
$309 Roundtrip, found 2 days ago
$309
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jun 2 from Logan Intl. to Denver Intl., returning Tue, Jun 9, priced at $309 found 2 days ago
Wed, Sep 30 - Tue, Oct 6
BIL
Logan Intl.
DEN
Denver Intl.
$315 Roundtrip, found 4 days ago
$315
Roundtrip
found 4 days ago
Select United flight, departing Wed, Sep 30 from Logan Intl. to Denver Intl., returning Tue, Oct 6, priced at $315 found 4 days ago
Wed, Sep 30 - Tue, Oct 6
BIL
Logan Intl.
DEN
Denver Intl.
$316 Roundtrip, found 4 days ago
$316
Roundtrip
found 4 days ago
Select United flight, departing Wed, Sep 30 from Logan Intl. to Denver Intl., returning Tue, Oct 6, priced at $316 found 4 days ago
Thu, Jun 11 - Tue, Jun 16
BIL
Logan Intl.
DEN
Denver Intl.
$319 Roundtrip, found 1 day ago
$319
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 11 from Logan Intl. to Denver Intl., returning Tue, Jun 16, priced at $319 found 1 day ago
Fri, Jun 19 - Mon, Jun 22
BIL
Logan Intl.
DEN
Denver Intl.
$323 Roundtrip, found 2 days ago
$323
Roundtrip
found 2 days ago
Select United flight, departing Fri, Jun 19 from Logan Intl. to Denver Intl., returning Mon, Jun 22, priced at $323 found 2 days ago
Fri, Jun 12 - Sun, Jun 14
BIL
Logan Intl.
DEN
Denver Intl.
$324 Roundtrip, found 1 day ago
$324
Roundtrip
found 1 day ago
Select United flight, departing Fri, Jun 12 from Logan Intl. to Denver Intl., returning Sun, Jun 14, priced at $324 found 1 day ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$327 Roundtrip, found 2 days ago
$327
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $327 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.