Cheapest Internet in Boise (2026)

Only two providers selling in Boise publish prices on Boise-specific pages, both checked August 14, 2026. Quantum Fiber's Boise page lists an entry fiber plan at $50 a month for speeds up to 500 Mbps upload and download, with no annual contract and unlimited data, and prices its most popular tier, up to 1 Gig in both directions, at $45 a month against a regular rate of $75 a month. The page labels that gap Save $30/mo. and adds free installation it values at $129 on the gig tier. CenturyLink's Boise page lists Simply Unlimited Internet starting at $55 a month for speeds up to 100 Mbps with no annual contract; paperless billing or prepay is required, and the page says customers get the fastest speed available at their location up to that 100 Mbps cap.

Everything cheaper than those figures is a national list price that Boise happens to share. Sparklight's headline offer is 1 Gig for $40 a month for 12 months with free installation on online orders; its fine print limits the deal to new customers and dates its expiration at 9/30/26. T-Mobile lists its cheapest home internet plan, Rely, at $35 a month with AutoPay and a voice line, against a regular $50. Verizon advertises 5G Home plans starting at $35 a month, a price that requires Auto Pay and paper-free billing plus a Verizon mobile phone plan, against a $60 base price. Both $35 figures are bundle prices, not standalone internet rates. The ranked table further down carries the full list, satellite included.

Sparklight publishes the clearest step-up schedule of any provider selling here. Its own fine print says the promotional rate is $40 a month for the first 12 months, then $45 to $55 a month for months 13-24 and $50 to $75 a month for months 25-36 depending on location, with regular rates running from $60 to $105 a month and subject to change at any time. The promo also requires Auto Pay from a checking or savings account or debit card plus paperless billing. No Boise-specific step-up figure appears anywhere in print, so that range is the honest answer to what year two costs.

Quantum Fiber's discount has a published ceiling instead of a range: the $45 gig promo sits against a regular rate of $75 on the Boise page, and the 500 Mbps tier is listed at a flat $50. Viasat runs the steepest cliff of the group. Its banner advertises $90 off, taken as $30 a month off the first 3 months, with plans starting at $39.99 a month, and the footnote prices the Essentials plan at $69.99 thereafter, on a plan whose terms require a 12-month minimum service commitment.

Two carriers sell price stability in place of a promo. T-Mobile advertises a 5-Year Price Guarantee included with its home internet plans, with an exclusions sentence covering taxes and fees, voluntary equipment or speed upgrades, future wireless generations, select limited-time promotions, per-use charges, third-party services and network management practices. Verizon attaches a 3-year price lock to its $60-a-month 5G Home base price, a 4-year lock to the $70 Plus tier and a 5-year lock to the $85 Ultimate tier. Starlink moved the other direction: effective with June 2026 billing dates it raised Residential 100 Mbps from $50 to $55 a month, Residential 200 Mbps from $80 to $85 and Residential MAX from $120 to $130, for new and existing customers alike, per SatelliteInternet.com.

Quantum Fiber's advertised numbers already assume two things, per its own footnote: the pricing reflects a $5-a-month discount for enrolling in autopay with a bank account, paperless billing is required, and taxes and fees are extra. Sparklight prices equipment separately. Its fine print puts the modem with eero Wi-Fi device lease at $0 to $14.99 a month and states that equipment, taxes, surcharges and fees are not included for most plans, though the promo does include an unlimited data plan. CenturyLink's Boise page requires paperless billing or prepay and says additional taxes, fees and surcharges apply.

T-Mobile's prices carry three riders: plus taxes and fees, a one-time $35 device connection charge due at sale, and $10 more per line monthly for customers who skip AutoPay with a bank account or debit card. On the other side of the ledger, the page states there are no monthly equipment fees or annual contracts, includes the 5G Gateway device at no additional charge, and offers a 15-day money-back trial. Verizon is the outlier on fee transparency: its page says all-in pricing means any taxes and fees are already included in the price shown, the router comes included on all three 5G Home plans, and a 30-day money-back guarantee applies, though a $99 professional setup charge may apply, waived for select plans and locations.

Reading fee disclosures is about to change shape. FCC broadband consumer label rules carried compliance dates of April 10, 2024 for providers with more than 100,000 subscriber lines and October 10, 2024 for smaller ones, but on July 22, 2026 the FCC voted 3-0 to strip the requirement that ISPs display the full label at points of sale and in customer account portals, allowing a hyperlink instead, per Light Reading. Ask for the label link before you order.

In Boise the cheapest city-page price currently buys the most speed. Quantum Fiber's $45 promo covers its up-to-1-Gig tier, upload and download, while the same page charges $50 for up to 500 Mbps, so during the promotional period the gig tier is the cheaper of the two. CenturyLink's $55 Simply Unlimited tops out at 100 Mbps, the speed its Boise page names as the maximum available.

Sparklight's $40 promo is a 1 Gig cable offer with unlimited data included, and two published policies define what unlimited means. Its data-plan terms say that during network congestion affecting fellow subscribers, or once a customer's own usage passes 5TB, speeds may be slowed to 10Mbps x 1Mbps until the end of the data period. Its network management policy adds that customers who fall within the top 5% of Sparklight's data users may see throughput reduced periodically for the remainder of the current and next billing cycle.

T-Mobile's own FAQ is candid about fixed wireless. It says Rely customers see typical download speeds between 170 and 354 Mbps (the page itself misspells it mpbs), typical upload speeds run between 12 and 55 Mbps, and 25% of its customers see speeds below those ranges while 25% see speeds above them. A $35 fixed-wireless plan and a $45 fiber gig plan are different products wearing similar stickers.

Sparklight's Lift Internet is the cheapest wired plan published for this market: $29.95 a month for speeds up to 200 Mbps download and 20 Mbps upload, with no installation fees, no auto-pay requirement, no deposits and a wifi-capable modem included. Eligibility requires enrollment in at least one qualified U.S. government assistance program, with Medicaid, SNAP, TANF and WIC named as examples, verified through VerifyPass, and Lift cannot be combined with Sparklight's promotional offers.

The federal Lifeline program still stands. USAC describes it as a monthly benefit of up to $9.25 toward phone or internet services for eligible subscribers, up to $34.25 for those living on Tribal lands. Qualification runs through income at 135% or less of the federal poverty guidelines, which for 2026 works out to $21,546 for a single person and $44,550 for a family of four in the 48 contiguous states, or through participation in SNAP, Medicaid, Supplemental Security Income, Federal Public Housing Assistance or the Veterans and Survivors Pension Benefit.

The Affordable Connectivity Program is gone. The subsidy that provided up to $30 a month toward internet service, $75 a month on qualifying Tribal lands, had its last fully funded month in May 2024 with a partial benefit in June 2024, and per InternetProviders.ai's tracking, Congress had approved no additional funding as of February 2026, though legislation to revive the program has been introduced. Anyone still budgeting around an ACP discount should move that line item to Lift or Lifeline.

The cheapest price only counts where the wire runs. BroadbandNow's modeled coverage estimates for Boise, stamped valid as of 08/13/2026, put Sparklight's cable at 95.2% of the city, CenturyLink at 75.7%, Verizon 5G at 41%, T-Mobile 5G at 38.7% and Quantum Fiber at 29.1%, with Starlink, Viasat and Hughesnet reaching 100% by satellite. Those are third-party modeled estimates rather than provider-published coverage claims, and the Quantum figure matches its own hedges: the Boise page warns of limited availability in select areas, and the Meridian and Nampa pages, which carry tier prices identical to Boise's, warn that service and speed are available in select locations only.

Quantum Fiber's Idaho directory lists Boise, Meridian, Nampa, Caldwell, Kuna, Star, Eagle and Garden City among its served cities. Sparklight's own service-area directory lists Boise, Caldwell, Garden City, Kuna, Meridian, Nampa and Star; Eagle is absent from that list. Ziply Fiber, the fiber discounter elsewhere in Idaho, lists 33 communities it is building or serving and none sit in the Boise metro; the company's only Boise reference is a marketing line about construction projects underway from Boise and Meridian outward.

Where satellite is the only option, the floor sits higher. SatelliteInternet.com's Starlink review, updated August 11, 2026, lists Residential 100 Mbps at $55 a month with equipment at $349 or free rental and unlimited data, and Viasat's Essentials promo starts at $39.99 a month before stepping to $69.99. Further out, Idaho holds $583 million in federal BEAD broadband awards, with NTIA approval of the state's Final Proposal on December 19, 2025 and the formal Notice of Award issued January 26, 2026, per the Idaho Office of Broadband; that money is aimed at extending affordable access statewide but changes no Boise price today.