United Flight 478 Deals & Information (2026/2027)

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United Flight 478 Route Deals From

The cheapest prices found with in the last 7 days for return flights were $256 and for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$256 Roundtrip, found 21 hours ago
$256
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $256 found 21 hours ago
Fri, Apr 24 - Sat, Apr 25
BIL
Logan Intl.
DEN
Denver Intl.
$266 Roundtrip, found 1 day ago
$266
Roundtrip
found 1 day ago
Select United flight, departing Fri, Apr 24 from Logan Intl. to Denver Intl., returning Sat, Apr 25, priced at $266 found 1 day ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$267 Roundtrip, found 21 hours ago
$267
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $267 found 21 hours ago
Fri, Apr 10 - Sun, Apr 12
BIL
Logan Intl.
DEN
Denver Intl.
$278 Roundtrip, found 1 day ago
$278
Roundtrip
found 1 day ago
Select United flight, departing Fri, Apr 10 from Logan Intl. to Denver Intl., returning Sun, Apr 12, priced at $278 found 1 day ago
Fri, Apr 3 - Mon, Apr 6
BIL
Logan Intl.
DEN
Denver Intl.
$293 Roundtrip, found 2 days ago
$293
Roundtrip
found 2 days ago
Select United flight, departing Fri, Apr 3 from Logan Intl. to Denver Intl., returning Mon, Apr 6, priced at $293 found 2 days ago
Fri, Apr 24 - Sat, Apr 25
BIL
Logan Intl.
DEN
Denver Intl.
$297 Roundtrip, found 1 day ago
$297
Roundtrip
found 1 day ago
Select United flight, departing Fri, Apr 24 from Logan Intl. to Denver Intl., returning Sat, Apr 25, priced at $297 found 1 day ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$318 Roundtrip, found 21 hours ago
$318
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $318 found 21 hours ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$328 Roundtrip, found 21 hours ago
$328
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $328 found 21 hours ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$329 Roundtrip, found 21 hours ago
$329
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $329 found 21 hours ago
Fri, Mar 27 - Mon, Mar 30
BIL
Logan Intl.
DEN
Denver Intl.
$331 Roundtrip, found 15 hours ago
$331
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Mar 27 from Logan Intl. to Denver Intl., returning Mon, Mar 30, priced at $331 found 15 hours ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$339 Roundtrip, found 21 hours ago
$339
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $339 found 21 hours ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$340 Roundtrip, found 21 hours ago
$340
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $340 found 21 hours ago
Fri, Apr 24 - Sat, Apr 25
BIL
Logan Intl.
DEN
Denver Intl.
$341 Roundtrip, found 1 day ago
$341
Roundtrip
found 1 day ago
Select United flight, departing Fri, Apr 24 from Logan Intl. to Denver Intl., returning Sat, Apr 25, priced at $341 found 1 day ago
Fri, Apr 10 - Sun, Apr 12
BIL
Logan Intl.
DEN
Denver Intl.
$342 Roundtrip, found 1 day ago
$342
Roundtrip
found 1 day ago
Select United flight, departing Fri, Apr 10 from Logan Intl. to Denver Intl., returning Sun, Apr 12, priced at $342 found 1 day ago
Sat, Mar 28 - Sun, Mar 29
BIL
Logan Intl.
DEN
Denver Intl.
$344 Roundtrip, found 2 days ago
$344
Roundtrip
found 2 days ago
Select United flight, departing Sat, Mar 28 from Logan Intl. to Denver Intl., returning Sun, Mar 29, priced at $344 found 2 days ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$348 Roundtrip, found 21 hours ago
$348
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $348 found 21 hours ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$351 Roundtrip, found 21 hours ago
$351
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $351 found 21 hours ago
Fri, Apr 3 - Mon, Apr 6
BIL
Logan Intl.
DEN
Denver Intl.
$353 Roundtrip, found 2 days ago
$353
Roundtrip
found 2 days ago
Select United flight, departing Fri, Apr 3 from Logan Intl. to Denver Intl., returning Mon, Apr 6, priced at $353 found 2 days ago
Tue, Jun 16 - Sun, Jun 21
BIL
Logan Intl.
DEN
Denver Intl.
$358 Roundtrip, found 21 hours ago
$358
Roundtrip
found 21 hours ago
Select United flight, departing Tue, Jun 16 from Logan Intl. to Denver Intl., returning Sun, Jun 21, priced at $358 found 21 hours ago
Sun, May 10 - Thu, May 14
BIL
Logan Intl.
DEN
Denver Intl.
$520 Roundtrip, found 4 hours ago
$520
Roundtrip
found 4 hours ago
Select United flight, departing Sun, May 10 from Logan Intl. to Denver Intl., returning Thu, May 14, priced at $520 found 4 hours 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.