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Connecting route · United States → United States

Flights from Idaho Falls to St Louis

There are no direct flights from Idaho Falls to St Louis. The fastest way is one stop via Denver or Salt Lake City, about 5h 15m door to door (14 connections a week on current schedules).

No direct flights · 2 connection options From 5h 15m
IDASTLDEN

Idaho Falls to St Louis at a glance

Fastest journey5h 15mVia Denver, on current schedules
Nonstop flightsNoneConnect via Denver or Salt Lake City

Best ways to fly from Idaho Falls to St Louis

Ranked by how easy the connection is: one airline or alliance first (bags and connection protected), then the quickest self-transfer options.

1
IDA Denver (DEN) STL
Leg 1: United Airlines · Leg 2: Frontier Airlines, Southwest Airlines, United Airlines
Sat14:45 IDA16:09 DEN2h 06m connection18:15 DEN21:00 STLUnited Airlines + Southwest Airlines
7 connections a week One airline, one ticket Fastest 5h 15m
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2
IDA Salt Lake City (SLC) STL
Leg 1: Delta Air Lines · Leg 2: Delta Air Lines, Southwest Airlines
Fri06:00 IDA06:48 SLC2h 42m connection09:30 SLC13:07 STLDelta Air Lines
7 connections a week One airline, one ticket Fastest 6h 07m
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Connections are computed from flights actually flown over the last 8 weeks, with at least 45 minutes to change on one airline and 2 hours on separate tickets. Times are local. The search shows live itineraries and exact times.

Good to know

Distance
1,903 km1,182 miles
Journey time
5h 15mon current schedules
Time difference
+1hSt Louis vs Idaho Falls
Currency in St Louis
USD
Airports
IDA → STL

Flights from Idaho Falls to St Louis: questions answered

Are there direct flights from Idaho Falls to St Louis?
No. There is no nonstop service, so you will connect, most easily in Denver and Salt Lake City. Some connections are on one airline or alliance, so your bags and connection are protected on a single ticket.
How long is the flight from Idaho Falls to St Louis?
With one connection the journey usually takes around 5h 15m, depending on the layover. The straight-line distance is 1,903 km.
Where do you change planes between Idaho Falls and St Louis?
The best connecting points are Denver (DEN) and Salt Lake City (SLC). United Airlines flies both legs via Denver, so you can book it as one ticket.
Which airports serve Idaho Falls and St Louis?
Idaho Falls: Idaho Falls Regional Airport (IDA). St Louis: St. Louis Lambert International Airport (STL).
What is the time difference between Idaho Falls and St Louis?
St Louis is 1 hour ahead of Idaho Falls.

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