United Flight 1731 Deals & Information (2025/2026)

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United Flight 1731 Route Deals From $359

The cheapest prices found with in the last 7 days for return flights were $614 and $359 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 24 - Wed, Oct 8
KOA
Kona Intl.
DEN
Denver Intl.
$614 Roundtrip, found 16 hours ago
$614
Roundtrip
found 16 hours ago
Select United flight, departing Wed, Sep 24 from Kona Intl. to Denver Intl., returning Wed, Oct 8, priced at $614 found 16 hours ago
Wed, Sep 3 - Thu, Sep 11
KOA
Kona Intl.
DEN
Denver Intl.
$669 Roundtrip, found 1 day ago
$669
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 3 from Kona Intl. to Denver Intl., returning Thu, Sep 11, priced at $669 found 1 day 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.