How do I check if UA1577 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 UA1577 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 UA1577 have Starlink Wi-Fi?

About 1% Starlink odds, weighted to recent UA1577 flights. A firm answer comes about 2 days before departure, once the aircraft is assigned.

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

UA1577 Starlink history

Based on 179 recent flights; Starlink found in 1 of 25 Wi-Fi checks since Jan 16, 2026 (last N14565, Jun 12, 2026).

Aircraft seen on UA1577: Airbus A320, Airbus A319, Airbus A320-232, Airbus A321neo.

Routes UA1577 flies

SFO → SAN · 1h 50m
Seen 13 times · last seen Oct 16, 2026
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ORD → SFO · 4h 48m
Seen 30 times · last seen Aug 22, 2026
Plan this route
ATL → ORD · 2h 22m
Seen 11 times · last seen May 23, 2026
Plan this route

Other SFO → SAN flights

UA2177 UA1561 UA1980 UA1668 UA442 UA2260 UA444 UA1257

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 UA1577 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 UA1577 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.