Low cost airlines — St. Louis, MO

Last updated: September 24, 2026

What affects the price

Flight prices shift based on a few key factors. How far ahead you book is usually the biggest one, as seats tend to fill up and get more expensive as the departure date nears. Choosing mid-week travel instead of weekends can often save you money, and flying during off-peak hours helps too. Demand is a major driver, so big holidays or local events can push costs higher. We look at all the available options to find a deal that fits your needs. Exact pricing confirmed free on the call.

About this service

Budget carriers offer a practical way to fly when you prioritize savings over extra amenities. These airlines typically strip away standard perks like checked bags or seat selection to keep base fares affordable. If you are planning a simple trip and want to cut costs, these carriers might be the right fit. We can help you weigh the pros and cons of these options. Exact pricing confirmed free on the call.

Frequently asked in St. Louis

Also serving nearby: O Fallon · Springfield · Columbia · Champaign · Peoria

All cities in Missouri →

More on this: DOT Aviation Consumer Protection — refund rights and the 24-hour rule.

Service area details

Serving all of St. Louis — population 281,754; about 4,565 residents per square mile across 61.7 sq mi.

Neighborhoods served in St. Louis: The Hill, Central West End, Soulard, Downtown St. Louis, Tower Grove — and every surrounding area.