Does UA643 have Starlink Wi-Fi?

About 11% Starlink odds, weighted to recent UA643 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.

How the check works · Is Starlink Wi-Fi free?

Next UA643 departures

  • LAS → SFO · Mon, Oct 19, 5:45 AM PDT
    N17420 · 737 MAX 9
    Starlink

UA643 Starlink history

Based on 224 recent flights; Starlink found in 5 of 19 Wi-Fi checks since Jan 2, 2026 (last N69818, Oct 18, 2026).

Aircraft seen on UA643: Boeing 737-900ER, Boeing 737-700, Boeing 737 MAX 8, Boeing 737-800.

Routes UA643 flies

  • LAS → SFO · 1h 41m
    Seen 280 times · last seen Oct 19, 2026
    Plan this route
  • SNA → IAH · 3h 19m
    Seen 23 times · last seen Sep 25, 2026
    Plan this route
  • SFO → SNA · 1h 46m
    Seen 3 times · last seen Sep 13, 2026
    Plan this route

Other LAS → SFO flights

UA1799UA1267UA2356UA1160UA1125UA1603UA2615UA2478

Other ways to check

  • Know your tail number? Search it on the homepage.
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  • See every United Airlines aircraft on the fleet page.

Questions

How do I check if UA643 has Starlink?
Pick your travel date above. United Airlines assigns the aircraft about 2 days before departure, and the answer then comes from that aircraft. Before that, you get Starlink odds from recent UA643 flights, weighted to the latest.
How accurate is this?
We check each aircraft's Wi-Fi on united.com and match aircraft to flights using flight schedule data. Aircraft can be swapped before departure, so check again the day before you fly.