United Flight 1731 Deals & Information (2025/2026)

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United Flight 1731 Route Deals From $400

The cheapest prices found with in the last 7 days for return flights were $533 and $400 for one-way flights to Denver Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Sep 4 - Thu, Sep 11
KOA
Kona Intl.
DEN
Denver Intl.
$533 Roundtrip, found 4 days ago
$533
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 4 from Kona Intl. to Denver Intl., returning Thu, Sep 11, priced at $533 found 4 days ago
Thu, Sep 4 - Thu, Sep 11
KOA
Kona Intl.
DEN
Denver Intl.
$644 Roundtrip, found 4 days ago
$644
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 4 from Kona Intl. to Denver Intl., returning Thu, Sep 11, priced at $644 found 4 days 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.