United Flight WN643 Deals & Information (2025/2026)

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United Flight 643 Route Deals From $105

The cheapest prices found with in the last 7 days for return flights were $235 and $105 for one-way flights to Wichita Dwight D. Eisenhower National for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Nov 3 - Thu, Nov 6
DEN
Denver Intl.
ICT
Wichita Dwight D. Eisenhower National
$235 Roundtrip, found 3 days ago
$235
Roundtrip
found 3 days ago
Select United flight, departing Mon, Nov 3 from Denver Intl. to Wichita Dwight D. Eisenhower National, returning Thu, Nov 6, priced at $235 found 3 days ago
Fri, Nov 7 - Mon, Nov 10
DEN
Denver Intl.
ICT
Wichita Dwight D. Eisenhower National
$259 Roundtrip, found 2 days ago
$259
Roundtrip
found 2 days ago
Select United flight, departing Fri, Nov 7 from Denver Intl. to Wichita Dwight D. Eisenhower National, returning Mon, Nov 10, priced at $259 found 2 days ago
Mon, Nov 3 - Thu, Nov 6
DEN
Denver Intl.
ICT
Wichita Dwight D. Eisenhower National
$275 Roundtrip, found 3 days ago
$275
Roundtrip
found 3 days ago
Select United flight, departing Mon, Nov 3 from Denver Intl. to Wichita Dwight D. Eisenhower National, returning Thu, Nov 6, priced at $275 found 3 days 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.