Grammar fix

low cost

cheap; not expensive

Not costing much money; affordable or inexpensive.

collocationB1common

Hear it in context

Notice where the phrase sounds natural.

Many students prefer low cost accommodation near the university.money
One advantage of public transport in my city is that there are many low cost options for students and elderly people.IELTS speaking

Pattern: low cost + noun

WrongWe took a low cost airline.

RightWe took a low-cost airline.

Hyphenate before a noun — 'a low-cost airline'.

Patternlow cost + noun

Choose the version that sounds natural in speech.

Stiff The service is available at a minimal pecuniary outlay.

Natural It's pretty low-cost.

'Low-cost' is natural; 'minimal pecuniary outlay' is absurd.

Words that usually travel with it.

Similar to 'cheap', but 'low cost' is more neutral and often used in formal or business contexts.