United Flight 671 Deals & Information (2026/2027)

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 671 Route Deals From $152

The cheapest prices found with in the last 7 days for return flights were $257 and $152 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Dec 9 - Fri, Dec 11
JAX
Jacksonville Intl.
DEN
Denver Intl.
$257 Roundtrip, found 1 day ago
$257
Roundtrip
found 1 day ago
Select United flight, departing Wed, Dec 9 from Jacksonville Intl. to Denver Intl., returning Fri, Dec 11, priced at $257 found 1 day ago
Mon, Dec 7 - Mon, Dec 14
JAX
Jacksonville Intl.
DEN
Denver Intl.
$263 Roundtrip, found 4 days ago
$263
Roundtrip
found 4 days ago
Select United flight, departing Mon, Dec 7 from Jacksonville Intl. to Denver Intl., returning Mon, Dec 14, priced at $263 found 4 days ago
Wed, Dec 9 - Sat, Dec 12
JAX
Jacksonville Intl.
DEN
Denver Intl.
$269 Roundtrip, found 3 days ago
$269
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 9 from Jacksonville Intl. to Denver Intl., returning Sat, Dec 12, priced at $269 found 3 days ago
Mon, Dec 7 - Mon, Dec 14
JAX
Jacksonville Intl.
DEN
Denver Intl.
$272 Roundtrip, found 4 days ago
$272
Roundtrip
found 4 days ago
Select United flight, departing Mon, Dec 7 from Jacksonville Intl. to Denver Intl., returning Mon, Dec 14, priced at $272 found 4 days ago
Mon, Nov 9 - Thu, Nov 12
JAX
Jacksonville Intl.
DEN
Denver Intl.
$275 Roundtrip, found 6 days ago
$275
Roundtrip
found 6 days ago
Select United flight, departing Mon, Nov 9 from Jacksonville Intl. to Denver Intl., returning Thu, Nov 12, priced at $275 found 6 days ago
Wed, Dec 9 - Fri, Dec 11
JAX
Jacksonville Intl.
DEN
Denver Intl.
$282 Roundtrip, found 1 day ago
$282
Roundtrip
found 1 day ago
Select United flight, departing Wed, Dec 9 from Jacksonville Intl. to Denver Intl., returning Fri, Dec 11, priced at $282 found 1 day ago
Tue, Jan 19 - Mon, Feb 1
JAX
Jacksonville Intl.
DEN
Denver Intl.
$283 Roundtrip, found 3 days ago
$283
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jan 19 from Jacksonville Intl. to Denver Intl., returning Mon, Feb 1, priced at $283 found 3 days ago
Thu, Nov 5 - Mon, Nov 9
JAX
Jacksonville Intl.
DEN
Denver Intl.
$286 Roundtrip, found 2 days ago
$286
Roundtrip
found 2 days ago
Select United flight, departing Thu, Nov 5 from Jacksonville Intl. to Denver Intl., returning Mon, Nov 9, priced at $286 found 2 days ago
Wed, Dec 9 - Fri, Dec 11
JAX
Jacksonville Intl.
DEN
Denver Intl.
$289 Roundtrip, found 1 day ago
$289
Roundtrip
found 1 day ago
Select United flight, departing Wed, Dec 9 from Jacksonville Intl. to Denver Intl., returning Fri, Dec 11, priced at $289 found 1 day ago
Thu, Nov 5 - Mon, Nov 9
JAX
Jacksonville Intl.
DEN
Denver Intl.
$290 Roundtrip, found 2 days ago
$290
Roundtrip
found 2 days ago
Select United flight, departing Thu, Nov 5 from Jacksonville Intl. to Denver Intl., returning Mon, Nov 9, priced at $290 found 2 days ago

Frequently asked questions

What route does flight number UA671 take?
UA671 travels between Denver, CO Airport (DEN-Denver Intl.) and BZN and flies direct. This trip typically takes 1 hour and 40 minutes.
How often is UA671 on time?
If you're traveling on United Airlines flight number UA671, you may want to have a book or tablet handy — 72% of these journeys arrive on time. If your service experiences a delay, the average wait is about 20 minutes. This flight has a rating of 2.05 stars.
What kind of plane is on flight number UA671?
The route for UA671 is most commonly DIA airport to BZN, and the Boeing 737-800 is the type of plane you'll probably be traveling on.
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 UA671 flight with Travelocity, please visit our Customer Service Portal.