How do I check if UA1421 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 UA1421 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 UA1421 have Starlink Wi-Fi?

About 20% Starlink odds, weighted to recent UA1421 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 UA1421 departures

ORD → FLL · Fri, Oct 9, 7:00 AM CDT
N38443 · 737-900
Starlink
FLL → IAD · Fri, Oct 9, 12:11 PM EDT
N66828 · 737-900
Starlink

UA1421 Starlink history

Based on 120 recent flights; Starlink found in 6 of 11 Wi-Fi checks since Feb 11, 2026 (last N54558, Sep 23, 2026).

Aircraft seen on UA1421: Airbus A321neo, Boeing 737-900ER, Boeing 737-800, Airbus A321.

Routes UA1421 flies

FLL → IAD · 2h 29m
Seen 538 times · last seen Oct 9, 2026
Plan this route
ORD → FLL · 3h 14m
Seen 396 times · last seen Oct 9, 2026
Plan this route

Other FLL → IAD flights

UA2169 UA754 UA2405

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 UA1421 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 UA1421 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.