United Flight 1731 Deals & Information (2026/2027)

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United Flight 1731 Route Deals From $452

The cheapest prices found with in the last 7 days for return flights were $461 and $452 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 9 - Wed, Sep 23
KOA
Kona Intl.
DEN
Denver Intl.
$461 Roundtrip, found 11 hours ago
$461
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Sep 9 from Kona Intl. to Denver Intl., returning Wed, Sep 23, priced at $461 found 11 hours ago
Wed, Sep 9 - Wed, Sep 23
KOA
Kona Intl.
DEN
Denver Intl.
$484 Roundtrip, found 11 hours ago
$484
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Sep 9 from Kona Intl. to Denver Intl., returning Wed, Sep 23, priced at $484 found 11 hours ago
Wed, Sep 9 - Wed, Sep 23
KOA
Kona Intl.
DEN
Denver Intl.
$501 Roundtrip, found 11 hours ago
$501
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Sep 9 from Kona Intl. to Denver Intl., returning Wed, Sep 23, priced at $501 found 11 hours ago
Wed, Sep 9 - Wed, Sep 23
KOA
Kona Intl.
DEN
Denver Intl.
$524 Roundtrip, found 11 hours ago
$524
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Sep 9 from Kona Intl. to Denver Intl., returning Wed, Sep 23, priced at $524 found 11 hours ago
Wed, Sep 9 - Wed, Sep 23
KOA
Kona Intl.
DEN
Denver Intl.
$555 Roundtrip, found 11 hours ago
$555
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Sep 9 from Kona Intl. to Denver Intl., returning Wed, Sep 23, priced at $555 found 11 hours ago
Wed, Sep 9 - Wed, Sep 23
KOA
Kona Intl.
DEN
Denver Intl.
$785 Roundtrip, found 11 hours ago
$785
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Sep 9 from Kona Intl. to Denver Intl., returning Wed, Sep 23, priced at $785 found 11 hours ago

Frequently asked questions

What route does flight number UA1731 take?
Flight number UA1731 operates direct from Ellison Onizuka Kona Intl. Airport at Keāhole to DIA airport. During this journey, expect to be in the air for roughly 6 hours and 39 minutes. It's wise to book ahead to secure your preferred seat.
How often is UA1731 on time?
Around 82% of UA1731 flights depart on time — so if you're taking to the skies between Kailua-Kona, HI Airport (KOA-Kona Intl.) and DEN, you can relax knowing that you'll land at your destination as quickly as possible. In the rare event that your United Airlines service is delayed, the average wait is about 35 minutes. Because of the airline's top-quality service, this route has a 1.7-star rating.
What kind of plane is on flight number UA1731?
Prepare to climb aboard a Boeing 767-300 if you're traveling on flight UA1731. Nearly all flights from Ellison Onizuka Kona Intl. Airport at Keāhole to Denver Intl. Airport (DEN) operate using 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 UA1731 flight with Travelocity, please visit our Customer Service Portal.