By the TSA Wait Times team · Updated · Published June 2026
Airport tips · reviewed June 2026
In-flight Wi-Fi has improved dramatically in 2026 — Starlink and Viasat Ka-band now deliver streaming-capable speeds on many routes. But not all aircraft are equipped equally, and carrier performance varies wildly. Here is a realistic guide to what to expect by airline.

On this page
Three main technologies are in use on US airlines in 2026. The hardware on your specific plane determines whether you can stream, browse, or barely send email.
Ground towers beam signal up to the aircraft. Works over the continental US only — does not work over water. The legacy GoGo ATG system was notoriously slow and is still on older Southwest and United aircraft. Adequate for messaging, poor for streaming.
Geosynchronous satellite coverage — works over water, more consistent than ATG, but slower than Ka-band and high latency due to the satellite altitude. Common on older United and American international aircraft.
Faster than Ku-band with good streaming capability. This is what JetBlue Fly-Fi and Delta's upgraded mainline aircraft use. Works over water, consistent coverage, capable of video calls on most aircraft.
The newest and fastest in-flight Wi-Fi technology. LEO satellites orbit much closer than geosynchronous, resulting in 20–50 ms latency (vs. 600 ms+ on geosynchronous) and speeds of 50–200+ Mbps. Alaska Airlines is deploying Starlink across its fleet in 2025–2026, and other carriers are evaluating it.
Delta's mainline fleet is largely equipped with Viasat Ka-band, delivering consistent streaming-capable speeds. Delta Sync Wi-Fi — the newer upgrade — adds free messaging for SkyMiles members and full Wi-Fi access for co-branded credit card holders.
JetBlue's Fly-Fi is free on every flight — no purchase required. Ka-band satellite coverage across most routes, consistently rated among the fastest airline Wi-Fi in the US.
If Wi-Fi access matters to you, JetBlue routes are worth searching first — the free Fly-Fi alone is a differentiator.
Alaska is deploying Starlink across its fleet in 2025–2026 — a dramatic upgrade from its previous Viasat system. Starlink-equipped aircraft are among the fastest Wi-Fi available on any US carrier.
How to check:Alaska's app shows whether your specific flight has Starlink or legacy Wi-Fi before you board.
United's Wi-Fi is heavily fleet-dependent — the airline operates a mix of GoGo ATG (slow), Viasat Ka-band (good), and Panasonic Ku-band (variable). Your experience depends almost entirely on which aircraft you are on.
Check United's in-flight entertainment page after booking to see the Wi-Fi system on your specific aircraft.
American is mid-pack in Wi-Fi quality. Newer aircraft — A321neo, 737 MAX — have Viasat and are stream-capable. Older fleet still runs ATG.
Southwest runs a GoGo ATG system — adequate for web browsing and messaging, but struggles with streaming. Reliable for light work; plan around the limitations.
Most Frontier and Allegiant flights do not offer in-flight Wi-Fi. Some Frontier routes have it on specific aircraft, but coverage is limited and inconsistent. Plan to go offline and download content before boarding.
Quick comparison at a glance
Fly-Fi is always free — no card required, no login wall, no hourly limit. On routes where JetBlue competes, it is the default choice for anyone who needs reliable in-flight Wi-Fi without paying for it.
If you are on Frontier, Allegiant, or an older aircraft without decent connectivity, plan ahead and you will not miss it.
Download before boarding
Netflix, Hulu, Disney+, and Apple TV+ all support offline downloads. Download your shows before you leave home, not at the airport — airport Wi-Fi speeds are unreliable for large downloads. Most streaming apps allow 25+ hours of offline content.
Airline seatback entertainment
Most airlines with decent Wi-Fi also have free seatback screens or an airline entertainment app. Delta, United, American, and JetBlue offer large catalogs of movies and TV — no Wi-Fi purchase needed.
Work offline tip
Queue any internet-dependent tasks before the flight. Draft emails and documents in offline mode, then send when you land. On a 3-hour flight, a pre-queued offline workflow often beats paying $20 for slow Wi-Fi.
JetBlue offers the best value — Fly-Fi is free on all flights and is streaming-capable. Delta has the most consistent paid Wi-Fi with good speeds. Alaska Airlines with Starlink is the fastest available on equipped aircraft.
$5–35 per flight depending on the airline and plan. JetBlue is free. United, Delta, and American range from $8–35. Some co-branded credit cards include free Wi-Fi as a cardholder benefit.
Yes on aircraft with Ka-band or Starlink (Delta, JetBlue, Alaska Starlink). Borderline on GoGo ATG (Southwest, older United). Not recommended for professional meetings on legacy systems.
Starlink uses SpaceX's low-earth-orbit satellite constellation for very fast, low-latency in-flight Wi-Fi (50–200+ Mbps, 20–50 ms latency). Alaska Airlines is deploying it across its fleet in 2025–2026.
Know when to leave for your flight
Great Wi-Fi does not help if you miss your flight. Get your Leave-By Time based on today's real TSA wait at your airport, your drive from home, and your airline's check-in cutoff.
Get my Leave-By Time →