Cheap flights to Indiana Dunes National Park from St Louis

Round trips from St Louis from $218. Fly into Chicago (MDW). Cheapest dates, deal ratings and where to book.

• Chicago: $218, 2026-10-23 to 2026-10-31

Nearby

• Gateway Arch
• Cuyahoga Valley
• Mammoth Cave
• New River Gorge
• Great Smoky Mountains
• Isle Royale
• Shenandoah
• Voyageurs