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 $105

The cheapest prices found with in the last 7 days for return flights were $219 and $105 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Oct 20 - Sat, Oct 24
JAX
Jacksonville Intl.
DEN
Denver Intl.
$219 Roundtrip, found 16 hours ago
$219
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Oct 20 from Jacksonville Intl. to Denver Intl., returning Sat, Oct 24, priced at $219 found 16 hours ago
Sat, Sep 12 - Sat, Sep 26
JAX
Jacksonville Intl.
DEN
Denver Intl.
$221 Roundtrip, found 1 day ago
$221
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 12 from Jacksonville Intl. to Denver Intl., returning Sat, Sep 26, priced at $221 found 1 day ago
Sat, Oct 17 - Wed, Oct 21
JAX
Jacksonville Intl.
DEN
Denver Intl.
$228 Roundtrip, found 9 hours ago
$228
Roundtrip
found 9 hours ago
Select United flight, departing Sat, Oct 17 from Jacksonville Intl. to Denver Intl., returning Wed, Oct 21, priced at $228 found 9 hours ago
Tue, Oct 20 - Sat, Oct 24
JAX
Jacksonville Intl.
DEN
Denver Intl.
$229 Roundtrip, found 16 hours ago
$229
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Oct 20 from Jacksonville Intl. to Denver Intl., returning Sat, Oct 24, priced at $229 found 16 hours ago
Sat, Sep 12 - Sat, Sep 26
JAX
Jacksonville Intl.
DEN
Denver Intl.
$231 Roundtrip, found 1 day ago
$231
Roundtrip
found 1 day ago
Select United flight, departing Sat, Sep 12 from Jacksonville Intl. to Denver Intl., returning Sat, Sep 26, priced at $231 found 1 day ago
Tue, Oct 20 - Sat, Oct 24
JAX
Jacksonville Intl.
DEN
Denver Intl.
$249 Roundtrip, found 16 hours ago
$249
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Oct 20 from Jacksonville Intl. to Denver Intl., returning Sat, Oct 24, priced at $249 found 16 hours ago
Sat, Oct 24 - Mon, Oct 26
JAX
Jacksonville Intl.
DEN
Denver Intl.
$252 Roundtrip, found 23 hours ago
$252
Roundtrip
found 23 hours ago
Select United flight, departing Sat, Oct 24 from Jacksonville Intl. to Denver Intl., returning Mon, Oct 26, priced at $252 found 23 hours ago
Sat, Oct 24 - Mon, Oct 26
JAX
Jacksonville Intl.
DEN
Denver Intl.
$255 Roundtrip, found 23 hours ago
$255
Roundtrip
found 23 hours ago
Select United flight, departing Sat, Oct 24 from Jacksonville Intl. to Denver Intl., returning Mon, Oct 26, priced at $255 found 23 hours ago
Thu, Oct 15 - Mon, Oct 19
JAX
Jacksonville Intl.
DEN
Denver Intl.
$258 Roundtrip, found 23 hours ago
$258
Roundtrip
found 23 hours ago
Select United flight, departing Thu, Oct 15 from Jacksonville Intl. to Denver Intl., returning Mon, Oct 19, priced at $258 found 23 hours ago
Tue, Oct 20 - Sat, Oct 24
JAX
Jacksonville Intl.
DEN
Denver Intl.
$259 Roundtrip, found 16 hours ago
$259
Roundtrip
found 16 hours ago
Select United flight, departing Tue, Oct 20 from Jacksonville Intl. to Denver Intl., returning Sat, Oct 24, priced at $259 found 16 hours 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.