How do I check if UA4043 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 UA4043 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.

Does UA4043 have Starlink Wi-Fi?

Over 99% Starlink odds, weighted to recent UA4043 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 UA4043 departures

IAH → SAT · Thu, Oct 8, 4:30 PM CDT
N85323 · E175
Starlink
IAH → SAT · Fri, Oct 9, 4:30 PM CDT
N86312 · E175
Starlink

UA4043 Starlink history

Based on 57 recent flights; Starlink found in 21 of 21 Wi-Fi checks since Mar 29, 2026 (last N89317, Oct 1, 2026).

Aircraft seen on UA4043: Embraer E-175.

Routes UA4043 flies

IAH → SAT · 1h 10m
Seen 138 times · last seen Oct 8, 2026
Plan this route
IAD → ATL · 2h 1m
Seen 221 times · last seen Sep 21, 2026
Plan this route
IAH → ECP · 1h 56m
Seen 843 times · last seen Aug 9, 2026
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IAH → GSP · 2h 24m
Seen 173 times · last seen May 20, 2026
Plan this route

Other IAH → SAT flights

UA6187 UA2198 UA6202 UA6201 UA5379 UA1542 UA6157 UA5517

Other ways to check

Know your tail number? Search it on the homepage.
Shopping on Google Flights? The free Chrome extension marks United flights that have Starlink.
See every United Airlines aircraft on the fleet page.

Questions

How do I check if UA4043 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 UA4043 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.