Cheap flights to Gateway Arch National Park from Pittsburgh

Round trips from Pittsburgh from $246. Fly into St Louis (STL). Cheapest dates, deal ratings and where to book.

• St Louis: $246, 2026-10-29 to 2026-11-02
• St Louis: $259, 2026-10-09 to 2026-10-11

Nearby

• Mammoth Cave
• Indiana Dunes
• Hot Springs
• Great Smoky Mountains
• New River Gorge
• Cuyahoga Valley
• Congaree
• Shenandoah