Guides · Compare

Optimum vs. AT&T Internet Air

Where Optimum's cable or fiber meets AT&T's 5G service, here's how they compare.

Jean Gilles · Founder & Editor
Published Oct 6, 2026 · 2 min read
Add as a preferred source on Google
The verdict

Choose Optimum for speed and price: 300 Mbps is $35/mo and 1 Gig $55, with a 60-day money-back guarantee. Choose AT&T Internet Air ($55) for quick self-setup and a price that won't rise after year one, if Optimum isn't available or you're moving soon.

Side by side

Optimum
AT&T Internet Air
Price
300 Mbps $35 · 500 $45 · 1 Gig $55
$55
Price lock
1 year (3 with SecureWiFi+)
Won't go up after the first year
Connection
Cable or fiber
5G and 4G wireless
Data cap
None
None
Guarantee
60-day money-back
No annual contract
Setup
Technician or self-install
Self-setup in minutes
Optimum prices with AutoPay and paperless billing. October 2026.

Which to choose

  • Optimum for families, gaming and anyone who wants 1 Gig.
  • Internet Air for renters, quick moves, or as a step until fiber arrives.
  • Check whether AT&T Fiber reaches you: 300 Mbps fiber is $50.

Reviews: Optimum · AT&T Internet Air.

What it costs over three years

Plan
36 months
Optimum 300 Mbps
Up to $1,800 + taxes ($1,620 with SecureWiFi+)
Optimum 1 Gig
Up to $2,520 + taxes ($2,340 with SecureWiFi+)
AT&T Internet Air
$1,980 + taxes

Speeds in practice

Optimum's wired service stays close to plan speed most of the day. Internet Air depends on the 5G signal at your address and how busy the tower is; uploads are lower. Test Internet Air in the evening before relying on it.

Who each suits

Household
Better fit
Why
Family of four, streaming and gaming
Optimum 500 Mbps or 1 Gig
Wired speed holds up in the evening
One or two people, light use
Either; Optimum 300 is cheaper
$35 vs. $55
Renting short-term or moving soon
AT&T Internet Air
Self-setup, no technician
Working from home with video calls
Optimum
Steadier uploads and latency

Fees to check

  • Optimum: new customers get a 1-year price lock (3 years with SecureWiFi+); after it ends, the price can rise by up to $15/mo a year.
  • Optimum: equipment and installation fees vary by address.
  • Internet Air: no equipment fee; taxes and fees extra.

Questions

Is AT&T Internet Air faster than Optimum?

Usually not. Optimum's wired connection offers up to 1 Gig and steadier speeds; Internet Air depends on 5G signal.

Which is cheaper, Optimum or AT&T Internet Air?

Optimum: 300 Mbps is $35/mo vs. $55 for Internet Air.

Does Optimum have a contract?

No annual contract, and it offers a 60-day money-back guarantee.

Do I need AT&T wireless for Internet Air?

No. Internet Air is $55/mo without an AT&T phone plan.

Sources (1)
  1. Plan pages and Broadband Facts labels from AT&T Fiber, Optimum, AT&T Internet Air, checked Oct 2026

Prices and offers change often; confirm at your address before you order. How we research

Questions about this guide?Ask on our Facebook page and we'll answer there.Join the discussion →
About our expert
Jean Gilles
Founder & Editor, ShopHighSpeed

Jean founded ShopHighSpeed after trying to find one straight answer about business internet in his own town. He has been a Comcast and Verizon Fios customer, and ranks providers on what they actually deliver, not on what they advertise.

5G home internetInternet plans & pricingDeals & promos

Keep reading