How do I check if UA631 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 UA631 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 UA631 have Starlink Wi-Fi?

About 41% Starlink odds, weighted to recent UA631 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 UA631 departures

DEN → PHX · Thu, Oct 8, 1:25 PM MDT
N36444 · 737-900
Starlink

UA631 Starlink history

Based on 61 recent flights; Starlink found in 10 of 16 Wi-Fi checks since Feb 16, 2026 (last N78540, Sep 28, 2026).

Aircraft seen on UA631: Boeing 737-800, Boeing 737-900ER, Boeing 737-900, Airbus A319.

Routes UA631 flies

DEN → PHX · 1h 59m
Seen 164 times · last seen Oct 8, 2026
Plan this route
YVR → IAH · 4h 26m
Seen 428 times · last seen Aug 10, 2026
Plan this route

Other DEN → PHX flights

UA1481 UA1686 UA1507 UA1782 UA2655 UA1194 UA1729 UA1236

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 UA631 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 UA631 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.