Yellow onions price in Boston.
Live shelf prices for yellow onions (3 lb bag) across all four major grocery delivery services in Boston, MA.
Yellow onions · 3 lb bag
Northeast Urban- Amazon Fresh (Prime)Cheapest$1.15
- Instacart — Whole Foods$1.25
- Instacart — Aldi$3.99
- Walmart+$4.17
Shelf price only — total delivered cost depends on basket size, fees, and tip.
Compare full basketHow we got these numbers
- Amazon Fresh (Prime):Live observation from May 13 ($1.15)
- Instacart — Whole Foods:Live observation from May 13 ($1.25)
- Instacart — Aldi:Live observation from May 10 ($3.99)
- Walmart+:Regional baseline ($4.17)
Live observations come from public weekly ads (Aldi, Whole Foods) and BLS Average Retail Food Prices, refreshed daily. Estimates use a per-category multiplier calibrated to NPR, Consumer Reports, and Tasting Table grocery comparison studies.
Why this category prices the way it does
Produce pricing swings with season and source — Aldi and Whole Foods source different supply chains, so the per-pound number on a given week can shift more than other categories.
Boston grocery context
Boston's grocery scene is shaped by the local Stop & Shop (Ahold Delhaize), Star Market (Albertsons), Market Basket (cult favorite, not on Instacart), and Roche Bros. Wegmans has multiple Boston-area stores (Newton, Burlington, Medford) with strong local following. Aldi has dense MA coverage. Whole Foods has multiple Boston and Cambridge locations. The metro's narrow streets and college-density mean delivery vehicles often double-park briefly — building access varies hugely between Back Bay brownstones and South End apartments.
Boston shoppers consistently get the best value from Instacart-Aldi for staples. Add Wegmans-via-Instacart for produce and prepared foods — the Newton and Medford stores have wide same-day windows. For Cambridge and Somerville, Trader Joe's is the cheapest premium fill-in option.
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Service fees, delivery, and tip all depend on basket size — the cheapest per-item service isn't always the cheapest overall.
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