Cheapest airlines flights from Augusta to St. Louis

You can choose from 1 airlines that fly from Augusta to St. Louis, including Delta Air Lines, Delta Air Lines has lowest fares on this route.
Airlines are determined based on actual purchased flight tickets from Augusta to St. Louis according to previous 12 months data from Trip.com.

Search cheap flights from Augusta to St. Louis in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$171, and round-trip tickets start at US$349.

Displayed flight fares from Augusta to St. Louis are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Augusta to St. Louis Flight Details

The distance between Augusta and St. Louis is about 941.25 km. Based on Trip.com's latest data, travel demand is highest in December. The off-season for travel is November.

Cheapest one-way flight priceUS$171
Cheapest return ticket priceUS$349
Cheapest monthNovember
Peak season for travelDecember
Flight distance941.25 km
Popular airlineDelta Air Lines
Flight statistics for the Augusta–St. Louis route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Augusta to St. Louis (AGS-STL)?

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as US$171 on Cheapest nonstop routes (e.g. AGS to STL on Wed, Mar 11), while Delta Air Lines offers Cheapest nonstop round-trips from US$349 departing on Fri, Jan 30 and returning on Sun, Feb 1.
  • At the moment, several airlines serve connecting flights from Augusta to St. Louis, including: Delta Air Lines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Augusta to St. Louis is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Augusta to St. Louis, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Mar 11, with one-way flights priced at just US$171.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for St. Louis travel is around December.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Augusta to St. Louis is November, when demand for travel is lower.
  • After crunching the numbers on our January flight calendar, it's currently cheapest to fly from Augusta to St. Louis on January 21, 2026 with Delta Air Lines, with prices starting at US$174.
  • You can land at any one of the following hubs in St. Louis, with Augusta Regional Airport to St. Louis Lambert International Airport (AGS-STL) is by far the most common option on this route: St. Louis Downtown Airport (CPS) St. Louis Lambert International Airport (STL).
  • The time difference between St. Louis and Augusta is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.