Indianapolis (IND) to St Louis (STL)

228mi
367 km198 nm

Flight time

≈ 1h 15m

Bearing

254° W

Indianapolis (IND) to St Louis (STL) is 228 miles (367 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.

Route map: IND → STLINDSTL

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What actually flies IND–STL

Filed traffic data

In July 2026, Southwest Airlines operated the most departures, one of 5 carriers flying nonstop IND–STL; the Embraer E175 was the most common aircraft at 25% of departures; flights ran 69% full.

Departures

8

July 2026

Seats

985

both directions

Passengers

676

both directions

Load factor

68.6%

RPM ÷ ASM

Who flies IND–STL?

Southwest Airlines operated the most nonstop IND–STL departures in July 2026 (3), one of 5 carriers on the route.

What plane flies IND–STL?

In July 2026, the Embraer E175 flew 25% of IND–STL departures — more than any other aircraft type.

How has IND–STL traffic changed?

Nonstop IND–STL departures rose from 2 in August 2025 to 8 in July 2026.

Monthly nonstop IND–STL traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.

  • August 2025

    2 departures · 129 passengers

    50.6%

    Load

  • September 2025

    1 departures · 130 passengers

    90.9%

    Load

  • October 2025

    4 departures · 328 passengers

    86.8%

    Load

  • November 2025

    2 departures · 270 passengers

    89.7%

    Load

  • December 2025

    2 departures · 179 passengers

    67.3%

    Load

  • January 2026

    5 departures · 256 passengers

    46.1%

    Load

  • February 2026

    1 departures · 73 passengers

    96.0%

    Load

  • March 2026

    4 departures · 282 passengers

    55.8%

    Load

  • April 2026

    10 departures · 1,069 passengers

    65.8%

    Load

  • May 2026

    6 departures · 418 passengers

    52.7%

    Load

  • June 2026

    6 departures · 438 passengers

    70.0%

    Load

  • July 2026

    8 departures · 676 passengers

    68.6%

    Load

By direction

Each direction is filed separately — they rarely match.

IND → STL

65.8% full

7 departures · 539 passengers

STL → IND

82.5% full

1 departures · 137 passengers

Nonstop IND–STL traffic has been filed since 2025.

Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).

The airports

IND

Indianapolis

US

Indianapolis International Airport

Coordinates

39.72°N, 86.29°W

Hemisphere

N · W

STL

St Louis

US

St. Louis Lambert International Airport

Coordinates

38.75°N, 90.37°W

Hemisphere

N · W

Frequently asked

How far is Indianapolis (IND) from St Louis (STL)?

IND to STL is 228 miles (367 km / 198 nautical miles) measured great-circle — the shortest path over the surface of the Earth.

How long is the flight from IND to STL?

A nonstop covers the 228-mile great-circle distance in roughly 1h 15m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.

What plane flies IND–STL?

In July 2026, the Embraer E175 flew the largest share of departures (25.0%), followed by the Boeing 737 MAX 8 (25.0%).

What mileage do I earn flying IND–STL?

Distance-based programs credit off the 228-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.

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