Is there a direct flight from Rexburg?

No, you must connect through a major hub.

How long is the flight?

Flights typically take 6 to 8 hours including layovers.

What is the best way to get around St. Louis?

Rideshare services and rental cars are the most practical ways to navigate the city.

Is it worth driving to St. Louis?

The drive is about 19 hours; it is doable but flying is much faster.

What is the best time to visit?

Spring and fall offer the most pleasant weather for sightseeing.

Rexburg

Saint Louis

Flight

Rexburg to Saint Louis

Updated: 31 May 2026

The distance from Rexburg to St. Louis is approximately 1,900 km. Flying from Idaho Falls (IDA) to St. Louis Lambert International (STL) is the most efficient mode of transport, typically involving a connection. Driving takes about 19 hours and involves crossing through Wyoming, Nebraska, and Missouri. St. Louis is known for the Gateway Arch and its rich history.

Total Distance: 1,900 km driving distance; 1,700 km straight-line air distance.

Fastest Way

Flight from Idaho Falls (IDA) to St. Louis (STL) takes about 6 hours including connections.

Cheapest Way

Booking flights in advance is the most cost-effective way to travel.

Compare Rexburg to Saint Louis Routes

Flight

Connecting

Duration

6 hours

Avg Price

$350 - $650

Operator

United Airlines

Route

IDA to STL via Denver or Chicago.

United Airlines offers the most frequent connections to St. Louis from Idaho Falls.

Travel Tips

Airport Choice
Fly into St. Louis Lambert International (STL) for the best access to the city.
Transportation
Rent a car or use rideshare services to get around St. Louis.
Dining
Try local specialties like toasted ravioli and gooey butter cake.
Safety
Stay in well-populated areas and be aware of your surroundings, especially at night.
Weather
Be prepared for hot summers and cold winters.

Safety Tips

Driving Safety
If driving, be prepared for long stretches of highway through the plains.
Emergency Services
Know the location of your hotel and the nearest hospital.
Pedestrian Safety
Use crosswalks and be cautious of traffic, especially in busy downtown areas.
Weather Awareness
Be prepared for rapid weather changes, especially in the spring.