Frontier Airlines at Atlanta Airport: North or South Terminal?

If you’re flying Frontier into or out of Hartsfield–Jackson Atlanta International Airport (ATL), it helps a lot to know which side of the terminal to use before you get dropped off, park, or hop on MARTA.

Here’s the short answer:

Below is a clear breakdown of what that means and how to get around ATL smoothly when you’re flying Frontier.

Which Terminal Does Frontier Use in Atlanta?

At ATL, the main building is divided into two sides:

• Domestic Terminal – North
• Domestic Terminal – South

Frontier Airlines operates from the:
👉 Domestic Terminal – South

This applies to:

• Frontier departures from Atlanta
• Frontier arrivals within the U.S. that use the domestic facilities

When you’re arranging a ride, parking, or using navigation apps, look specifically for “Domestic Terminal – South” for Frontier flights.

How the Terminals at ATL Are Set Up

Understanding the layout makes finding Frontier much easier.

Domestic Terminal (North vs. South)

• Domestic Terminal – North

  • Used by several major U.S. airlines
  • Has its own ticketing/check-in counters and security

• Domestic Terminal – South

  • Used by other major U.S. carriers plus Frontier
  • Has its own ticketing/check-in counters and security
  • This is where you’ll go for Frontier check-in, bag drop, and security screening

Once you pass through security, you’ll head to the Concourses (T, A, B, C, D, E, F) depending on your gate. The concourses are shared by multiple airlines, so don’t worry if you see a mix of different carriers once you’re inside.

Step-by-Step: Departing from Atlanta on Frontier

1. Getting Dropped Off

Ask your ride, taxi, or rideshare to drop you at:

• “Atlanta Airport Domestic Terminal – South, Frontier Airlines departures.”

Roadway signs on I-85, I-75, and the airport loop roads will show:

• Domestic – North
• Domestic – South

Follow the signs for Domestic – South.

2. Check-In and Bag Drop

Once inside the South Terminal, look for:

• Frontier check-in counters
• Self-service kiosks (if available)
• Bag drop area (if you’ve already checked in online)

Tip: Frontier often encourages online check-in and using the app before you get to the airport, especially if you’re traveling with only a personal item or pre-paid bags.

3. Security Screening

After check-in and bag drop:

• Proceed to TSA security in the Domestic Terminal – South.
• All domestic security lanes feed into the same central passenger train and walkways to the concourses.

4. Getting to Your Gate

After security, you’ll reach the Plane Train (the underground airport train) and pedestrian walkways.

• Check your boarding pass to see which Concourse (T, A, B, C, D, or others) your Frontier flight uses.
• Take the Plane Train or walk to the correct concourse.
• Follow signs to your specific gate number.

Arriving in Atlanta on Frontier

If you’re landing in Atlanta on a Frontier flight from another U.S. city, you’ll typically:

1. Arrive at a concourse gate (often in Concourses T, A, B, C, or D, depending on scheduling).
2. Take the Plane Train or walk toward:
   • “Baggage Claim / Ground Transportation / Domestic Terminal”
3. Follow signs for Domestic Terminal – South if you:
   • Checked a bag
   • Are meeting a ride at the curb
   • Are connecting to MARTA at the domestic entrance
4. Frontier baggage claim carousels are located on the Domestic side, typically associated with the South Terminal area.

Using MARTA When Flying Frontier

If you’re using MARTA (Metro Atlanta’s rail system) to reach Frontier at ATL:

• Take MARTA to the Airport Station, which is the last stop on the Red and Gold lines.
• The station is connected to the Domestic Terminal, between North and South.
• From the MARTA exit:
  • Follow indoor signs toward “Domestic Terminal – South” and then Frontier check-in.

This route is fully indoors and walkable, with clear signage.

Driving and Parking for Frontier Flights

If you’re driving yourself to the airport:

1. Follow Signs to Domestic – South

From major interstates (I-85, I-75, I-285), follow airport signage for:

• “Domestic Terminal”
• Then choose “South” at the split for North vs. South

2. Parking Options Near the South Terminal

Common options include:

• Hourly and Daily parking decks near the Domestic Terminal
• Economy lots serving the Domestic side
• ATL’s Park-Ride lots, which use shuttles to bring you to the Domestic Terminal

Once parked, follow signs inside the decks or from shuttle drop-offs to the Domestic Terminal – South and Frontier counters.

Quick Reference: Frontier Terminal Information in Atlanta

Tips for Atlanta Travelers Flying Frontier

• Double-check your airline and terminal: If you’re traveling with a group, make sure everyone is actually on Frontier, not another low-cost carrier using a different side of the terminal.
• Build in extra time: ATL is one of the busiest airports in the country. For Frontier flights, many travelers allow:
  • About 2 hours before a domestic flight (more during peak morning/afternoon times or holidays).
• Use signs generously: Inside ATL, terminal, airline, and concourse signs are frequent and clear. If you’re unsure, ask any airport staffer, “Where is Frontier check-in in the South Terminal?”

In summary: If you’re flying Frontier in Atlanta, you’ll use the Domestic Terminal – South. Plan your drop-off, parking, and MARTA route with the South Terminal in mind, and you’ll navigate ATL much more smoothly.