AT&T Internet Air vs Xfinity: Which Is Better?
Updated
Choose Xfinity if it's wired to your home: it's cheaper at the entry tier, faster, and locks your price for five years. Choose AT&T Internet Air if you want a plug-in setup with no technician, a single simple plan, or a backup to cable in an area with a strong AT&T signal. AT&T Internet Air is a fixed wireless service that runs over AT&T's cellular network. Xfinity is cable internet delivered over a wired line. Here's how they stack up.
Xfinity is the better value if it's wired to your home: 300 Mbps for $45/mo with a 5-year price guarantee, and a listed 1 Gig tier. AT&T Internet Air starts at $55/mo for one plan (90 to 300 Mbps expected) with $0 self-setup and no annual contract, but AT&T doesn't advertise a multi-year price lock.
AT&T prices from att.com and Xfinity prices from xfinity.com, both checked October 8, 2026, with autopay and paperless billing. Taxes and fees extra.
AT&T Internet Air vs Xfinity at a glance
| AT&T Internet Air | Xfinity | |
|---|---|---|
| Technology | Fixed wireless (AT&T cellular network) | Cable (wired) |
| Plans | One plan | 300 Mbps, 500 Mbps, 1 Gig |
| Price | From $55/mo* | $45 to $70/mo with a 5-year price guarantee* |
| Price lock | No multi-year lock advertised | Five-year base-price guarantee; confirm the rate when it ends |
| Expected download | 90 to 300 Mbps | Up to the plan speed (300 Mbps to 1 Gig) |
| Expected upload | 8 to 30 Mbps | Varies by plan; check the broadband label |
| Data | Unlimited; speeds can be cut for at least 30 minutes during congestion | Unlimited data included |
| Equipment | All-Fi Hub included | WiFi equipment included |
| Setup | $0 self-setup | Self-install, or $100 if a technician is needed |
| Contract | No annual contract | No annual contract |
*With eligible AutoPay and paperless billing; taxes and fees extra. Xfinity's qualifying new-customer offer ends October 25, 2026 and requires bank-account AutoPay; other restrictions apply. AT&T prices from att.com as of October 8, 2026; Xfinity prices from xfinity.com as of October 8, 2026. AT&T Internet Air speeds are AT&T's expected range from its support site (updated August 25, 2026). Prices vary by address.
Price: Xfinity costs less and locks it in
Xfinity's 300 Mbps plan is $45/mo with a 5-year price guarantee. AT&T Internet Air starts at $55/mo, and AT&T doesn't advertise a multi-year lock on it. That's a $10/mo gap before you count Xfinity's faster tiers. At $70/mo, Xfinity's 1 Gig plan costs only $15 more than Internet Air for several times the top speed. For Xfinity's full bill, see what you actually pay for Xfinity, and compare this month's offers in our October 2026 internet deals roundup.
Our first-year and 5-year cost math
| Plan | Monthly | Year 1 | 5 years at today's price |
|---|---|---|---|
| AT&T Internet Air | $55 | $660 | $3,300 (if the price never rises) |
| Xfinity 300 Mbps | $45 | $540 ($640 with a technician install) | $2,700 (locked) |
| Xfinity 1 Gig | $70 | $840 ($940 with a technician install) | $4,200 (locked) |
Our math: listed monthly price as of October 8, 2026, with autopay. Excludes taxes, fees and promos. AT&T's price can change because no multi-year lock is advertised, so its five-year figure is an illustration assuming today's price stays unchanged.
Which one reaches your address?
Compare AT&T, Xfinity and other providers by ZIP.
Speed: compare the wired tier with your wireless signal
AT&T expects Internet Air customers to see 90 to 300 Mbps down and 8 to 30 Mbps up. That's enough for HD streaming and video calls in a small household. Xfinity offers higher advertised speed tiers over a wired line, which can suit a household with several heavy users. Actual performance still depends on the plan, home network and congestion; an advertised tier is not a measured guarantee. AT&T's own terms say it may "greatly reduce" Internet Air speeds for at least 30 minutes if your usage contributes to network congestion. Read why wireless home internet slows down at night for more.
Uploads are modest on both. If you send large files or stream to an audience, compare the upload numbers on each plan's broadband label, or look at fiber (see fiber vs 5G home internet). Our Xfinity "fiber-powered" vs real fiber guide explains the difference.
Is AT&T Fiber available instead?
If AT&T Fiber reaches your address, it changes the math. Fiber has matching upload and download speeds; check the current speed tiers, discounts and full price returned for your exact address. AT&T generally offers Internet Air where fiber isn't available. Learn more in Is AT&T Internet Air the same as fiber? and our Xfinity vs AT&T Internet comparison.
Who should pick which
- Pick Xfinity if you want the lowest price per Mbps, a 5-year price guarantee, faster tiers for gaming or several users, or the steadiest evening speeds.
- Pick AT&T Internet Air if you want a quick plug-in setup, don't need more than about 300 Mbps, already have AT&T wireless (ask whether a bundle discount applies), or rent and expect to move.
- Also compare: AT&T Internet Air vs T-Mobile Home Internet, AT&T Internet Air vs Verizon 5G Home Internet, Xfinity vs T-Mobile Home Internet and our AT&T Internet Air overview.
Want help choosing?
We can check speeds and prices at your address.
Frequently asked questions
Is AT&T Internet Air faster than Xfinity?
No. AT&T expects Internet Air to deliver 90 to 300 Mbps, while Xfinity sells wired plans including 300 Mbps and 1 Gig.
Which is cheaper, AT&T Internet Air or Xfinity?
Xfinity's 300 Mbps plan is $45/mo with a 5-year price guarantee, and AT&T Internet Air starts at $55/mo. Both prices are with autopay and paperless billing, as of October 8, 2026.
Does AT&T Internet Air have a data cap?
No cap, but AT&T says it may greatly reduce speeds for at least 30 minutes if your usage contributes to congestion.