The best family phone plans are the ones that get cheaper per line as you add lines, and not every brand does that. Some discount heavily at four lines. Some charge exactly the single-line price times the number of lines. This page puts the totals side by side so you can see which is which.
Every figure is from the brand’s own site, read on October 8, 2026. We have not tested these plans.
Unlimited data for a family: total monthly price
Each row is that brand’s lowest-priced unlimited plan with a multi-line discount.
| Brand and plan | 2 lines | 3 lines | 4 lines | 5 lines |
|---|---|---|---|---|
| Metro by T-Mobile, $40 plan | $65 | $90 | $100 | Not shown |
| Cricket Select Unlimited | $65 | $90 | $100 | $120 |
| Total Wireless STARTER | $75 | $85 | $95 | $125 |
| T-Mobile Prepaid Unlimited | $75 | $105 | $135 | Not shown |
| Google Fi Essentials | $60 | $80 | $90 | $113 |
| Verizon Prepaid Unlimited | $80 | Not shown | $140 | Not shown |
The conditions differ, and they move the real total:
- Metro includes taxes and fees. Nobody else in this table does, except Total Wireless, which says “All taxes and fees are included with your plan prices.”
- Cricket’s prices are after a $5 Auto Pay credit that starts in the second month. Select Unlimited is for new lines only.
- Total Wireless, T-Mobile Prepaid and Verizon Prepaid prices are with automatic payments.
- Google Fi’s prices do not include taxes and government fees.
Two notes on sources. Cricket’s multi-line prices come from a Cricket rate sheet, and its main plans page confirms the four-line price. Total Wireless prints its multi-line prices in a grid that we read by column order, so confirm them on its page.
At four lines, Google Fi Essentials at $90, Total Wireless at $95 and Metro and Cricket at $100 are within $10 of each other. With taxes counted, Metro and Total Wireless move ahead.
Brands with no family discount
Three brands say outright that they do not discount extra lines.
US Mobile: “we do not have multi-line discounts (we just lowered our prices so that even a single line costs what one used to get after a multi-line discount)”. Four lines cost four times one line.
Mint Mobile: “although there aren’t any discounts you get the ease of managing multiple accounts in one place”. A Mint Family is two to five lines, each on its own plan.
Tello: lines share an account, and each is priced as its own plan.
That is not a mark against them. US Mobile’s and Tello’s single-line prices start low enough that four lines can still undercut a discounted family plan. Four 10 GB lines at Tello are $60 a month at its listed price, which Tello labels as introductory.
Straight Talk’s family pricing
Straight Talk prints its family offer as savings: “Save $15/mo when you add a 2nd line to your account; $45/mo with 3 lines, $80/mo with 4 lines, and $100/mo with 5 lines”, with all lines on the $45 Silver Unlimited plan. It also advertises “$25/line/mo with four lines”. Taken together that is $100 for four lines, but work out your own total at checkout, because the family discount “does not combine with Auto Pay discount”.
Boost Mobile
Boost takes $20 off for two lines and $40 off for three on its Unlimited+ and Unlimited Premium plans. We could not confirm its totals for four and five lines.
How to choose
Count taxes first. A plan with taxes included at $100 can cost less than one at $95 without.
Then look at what each line gets. The cheapest family prices are on each brand’s most limited unlimited plan. Cricket’s has no hotspot. Metro’s slows after 35 GB on a busy network.
And check who has to be on the same plan. Cricket requires every line on the account to be on Select Unlimited. Brands without family discounts let each person pick a different plan, which suits a household where one person uses far more data than the others.
For single-line prices, see cheapest plans and unlimited plans.