Does UA4021 have Starlink Wi-Fi?

Over 99% Starlink odds, weighted to recent UA4021 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 UA4021 departures

  • IAD → CLT · Sun, Oct 11, 8:15 AM EDT
    N86322 · E175
    Starlink

UA4021 Starlink history

Based on 66 recent flights; Starlink found in 25 of 25 Wi-Fi checks since Jan 6, 2026 (last N88331, Oct 9, 2026).

Aircraft seen on UA4021: Embraer E-175.

Routes UA4021 flies

  • IAD → CLT · 1h 29m
    Seen 82 times · last seen Oct 10, 2026
    Plan this route
  • IAH → MEM · 1h 46m
    Seen 357 times · last seen Sep 22, 2026
    Plan this route
  • IAD → IND · 1h 43m
    Seen 478 times · last seen Aug 11, 2026
    Plan this route
  • MSP → IAH · 3h 9m
    Seen 111 times · last seen Jun 19, 2026
    Plan this route

Other IAD → CLT flights

UA6209UA6239UA6234UA4504UA4063UA4070UA6155UA4005

Other ways to check

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Questions

How do I check if UA4021 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 UA4021 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.