How do I check if UA3421 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 UA3421 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 UA3421 have Starlink Wi-Fi?

Over 99% Starlink odds, weighted to recent UA3421 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 UA3421 departures

CLT → ORD · Thu, Oct 8, 5:31 PM EDT
N749YX · E175
Starlink
CLT → ORD · Fri, Oct 9, 5:31 PM EDT
N725YX · E175
Starlink

UA3421 Starlink history

Based on 78 recent flights; Starlink found in 20 of 23 Wi-Fi checks since Jan 5, 2026 (last N726YX, Oct 4, 2026).

Aircraft seen on UA3421: Embraer E-175.

Routes UA3421 flies

CLT → ORD · 2h 29m
Seen 331 times · last seen Oct 8, 2026
Plan this route
CMH → ORD · 1h 36m
Seen 264 times · last seen Sep 7, 2026
Plan this route
EWR → SDF · 2h 16m
Seen 700 times · last seen Aug 9, 2026
Plan this route
YHZ → EWR · 2h 18m
Seen 244 times · last seen Jun 22, 2026
Plan this route

Other CLT → ORD flights

UA3442 UA1304 UA3491 UA5654 UA5751 UA2771 UA4680 UA4718

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 UA3421 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 UA3421 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.