United Flight 5739 Deals & Information (2025/2026)

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United Flight 5739 Route Deals From $138

The cheapest prices found with in the last 7 days for return flights were $157 and $138 for one-way flights to Lambert-St. Louis Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Oct 2 - Mon, Oct 6
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$157 Roundtrip, found 4 days ago
$157
Roundtrip
found 4 days ago
Select United flight, departing Thu, Oct 2 from Denver Intl. to Lambert-St. Louis Intl., returning Mon, Oct 6, priced at $157 found 4 days ago
Wed, Jul 30 - Wed, Aug 6
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$171 Roundtrip, found 13 hours ago
$171
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Jul 30 from Denver Intl. to Lambert-St. Louis Intl., returning Wed, Aug 6, priced at $171 found 13 hours ago
Thu, Aug 7 - Sat, Aug 9
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$171 Roundtrip, found 6 days ago
$171
Roundtrip
found 6 days ago
Select United flight, departing Thu, Aug 7 from Denver Intl. to Lambert-St. Louis Intl., returning Sat, Aug 9, priced at $171 found 6 days ago
Mon, Nov 24 - Thu, Nov 27
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$189 Roundtrip, found 5 days ago
$189
Roundtrip
found 5 days ago
Select United flight, departing Mon, Nov 24 from Denver Intl. to Lambert-St. Louis Intl., returning Thu, Nov 27, priced at $189 found 5 days ago

Frequently asked questions

What route does flight number UA5739 take?
UA5739 jets from Denver, CO Airport (DEN-Denver Intl.) to Durango-La Plata County Airport and is a direct flight. This journey takes 1 hour and 5 minutes.
How often is UA5739 on time?
United Airlines flight number UA5739 from Denver Intl. Airport (DEN) to La Plata County Airport (DRO) operates according to schedule 85% of the time --- so you can relax knowing that you'll touch down at your destination ASAP. If this journey is late, you can expect to wait about 15 minutes. This route has a star rating of 3.5.
What kind of plane is on flight number UA5739?
Expect to step aboard a Bombardier CRJ if you're traveling on flight UA5739. Most flights from Denver, CO Airport (DEN-Denver Intl.) to DRO operate using this aircraft model.
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 UA5739 flight with Travelocity, please visit our Customer Service Portal.