Quest vs Labcorp prices: 53 identical tests, side by side

Is Quest or Labcorp cheaper?

Neither, consistently. Both labs price their consumer sites test by test, and the cheaper lab flips from one test to the next: Quest Health tends to undercut on common chemistry and hormone tests, Labcorp OnDemand on some panels and immunity titers. The table is the answer for the specific test you need; the medians above are the answer for "in general."

The larger gap is not between the two labs but between either lab's consumer site and ordering the same test through a lab-ordering network. TestWell's all-in price — sticker plus one $6 fee per order — is shown in the last column for the same draw at either lab.

Quest Health vs Labcorp OnDemand price list (2026)

Each lab price links to the product page it was read from. Where a lab's product differs in composition from TestWell's, the note says how. Download: Quest CSV · Labcorp CSV.

Quest vs Labcorp at a glance: same tests, different companies

Quest Diagnostics and Labcorp are separate, competing public companies — the two largest clinical laboratories in the country — and for routine blood work they are interchangeable. Both are CLIA-certified and CAP-accredited, both run the same tests under the same CPT codes to the same federal standards, and both return routine results in 1–3 business days (specialty and send-out tests, such as allergy panels, heavy metals and methylmalonic acid, take 5–12 at either). Each operates roughly 2,000 patient service centers; Quest also draws inside many Walmart stores and Labcorp inside many Walgreens, which extends both networks into suburbs and smaller towns.

Both sell tests directly to consumers through their own sites — Quest Health and Labcorp OnDemand — at the list prices in the table above, with a physician network authorizing the order; neither takes insurance for those orders, and each site only issues requisitions for its own lab. TestWell sits in front of both: one catalog, the same price at either lab for almost every test, one $6 fee per order, and one results portal even if you switch labs between orders.

Locations and hours: which lab is closer?

This is the difference that decides most choices. The two networks are not evenly distributed — one lab tends to dominate a metro area because of hospital and insurer contracts, so the nearest Quest may be ten minutes away and the nearest Labcorp forty, or the reverse. Hours are similar: most centers open early (often 6:30 or 7 AM, useful for fasting draws), close mid-afternoon, and a subset open Saturday mornings. Both take walk-ins at most locations and both let you book online; a Monday-morning walk-in can mean a long wait. Before you order, check the nearest center for each lab with the lab finder or the location pages by state and city.

Are Quest and Labcorp results and reference ranges the same?

Results are clinically equivalent, but reference ranges are not identical: each lab sets its own ranges from its own analyzers, calibrations and reference populations, so the “normal” window for TSH, testosterone, vitamin D or a liver enzyme can differ by a few percent between the two, and a value near a cut-off can be flagged at one lab and not the other. If you are tracking a marker over months — hormones on therapy, thyroid on levothyroxine, ferritin during iron replacement — stay with one lab so every result is measured on the same system. Quest posts results to MyQuest and Labcorp to the Labcorp Patient portal, each only for its own lab; TestWell orders from either lab land in one portal with the reviewed reference range alongside the report.

Which lab should you choose for the draw?

• Closest center wins. For routine tests the results are interchangeable, so distance, hours and wait times should decide.
• Tracking a value over time? Use the same lab every time so reference ranges and calibration stay constant.
• Your doctor already uses one? Match it, so new results sit next to old ones in the same system and the same ranges.
• Using insurance? Check which lab is in-network for your plan before the draw; that matters far more than list price.
• Paying yourself and ordering direct? Compare the specific tests you want in the table above — the cheaper lab flips from one test to the next — or order through TestWell, where the price is the same at either lab and you still pick the closer center.
• In New York or New Jersey? Neither lab takes self-ordered draws; TestWell routes the order to BioReference.

Frequently asked questions