United Flight 643 Deals & Information (2025/2026)

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United Flight 643 Route Deals From $74

The cheapest prices found with in the last 7 days for return flights were $267 and $74 for one-way flights to Wichita Dwight D. Eisenhower National for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jan 13 - Tue, Jan 27
DEN
Denver Intl.
ICT
Wichita Dwight D. Eisenhower National
$267 Roundtrip, found 2 days ago
$267
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 13 from Denver Intl. to Wichita Dwight D. Eisenhower National, returning Tue, Jan 27, priced at $267 found 2 days ago
Tue, Jan 13 - Tue, Jan 27
DEN
Denver Intl.
ICT
Wichita Dwight D. Eisenhower National
$279 Roundtrip, found 2 days ago
$279
Roundtrip
found 2 days ago
Select United flight, departing Tue, Jan 13 from Denver Intl. to Wichita Dwight D. Eisenhower National, returning Tue, Jan 27, priced at $279 found 2 days ago
Tue, Dec 30 - Sat, Jan 3
DEN
Denver Intl.
ICT
Wichita Dwight D. Eisenhower National
$302 Roundtrip, found 11 hours ago
$302
Roundtrip
found 11 hours ago
Select United flight, departing Tue, Dec 30 from Denver Intl. to Wichita Dwight D. Eisenhower National, returning Sat, Jan 3, priced at $302 found 11 hours ago

Frequently asked questions

What route does flight number UA643 take?
UA643 takes approximately 5 hours and 3 minutes to jet directly from Kona Intl. Airport (KOA) to San Francisco, CA Airport (SFO-San Francisco Intl.). Sure, there's magic in the destination, but getting there is half the fun!
How often is UA643 on time?
United Airlines flight number UA643 from Kailua-Kona, HI Airport (KOA-Kona Intl.) to SFO runs on time 100% of the time — so you can relax knowing that you'll reach your destination ASAP. If this service happens to be late, you'll probably wait roughly 6 minutes. This route has a 4.55-star rating.
What kind of plane is on flight number UA643?
The route for UA643 is most commonly KOA to SFO, and the Boeing 737-900 is the type of plane you're likely to be heading off 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 UA643 flight with Travelocity, please visit our Customer Service Portal.