How do I check if UA400 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 UA400 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 UA400 have Starlink Wi-Fi?

About 6% Starlink odds, weighted to recent UA400 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 UA400 departures

SFO → BUR · Fri, Oct 30, 5:55 PM PDT
N77542 · 737-800
Starlink

UA400 Starlink history

Based on 77 recent flights; Starlink found in 2 of 10 Wi-Fi checks since Jan 2, 2026 (last N37287, Sep 2, 2026).

Aircraft seen on UA400: Boeing 737-800, Boeing 737 MAX 8, Boeing 757-300, Boeing 737.

Routes UA400 flies

SFO → BUR · 1h 14m
Seen 18 times · last seen Oct 29, 2026
Plan this route
YEG → DEN · 2h 47m
Seen 34 times · last seen Sep 3, 2026
Plan this route
RIC → DEN · 3h 50m
Seen 14 times · last seen Aug 9, 2026
Plan this route

Other SFO → BUR flights

UA2115 UA1367 UA626 UA5550 UA2001 UA1321 UA2611 UA2846

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 UA400 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 UA400 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.