Fare Guide

Estimated lowest fares found within 7 days

Cheapest Airline Frontier Airlines

The cheapest airline(s) flying from Saint Louis to Detroit is Frontier Airlines.

  • Frontier Airlines Frontier Airlines
  • American Airlines American Airlines
  • United Airlines United Airlines
  • Southwest Airlines Southwest Airlines
  • Alaska Airlines Alaska Airlines
Cheapest Month April

Travel Period: April 2025 - March 2026

The cheapest month(s) to fly from Saint Louis to Detroit is April.

  • Apr 2025
  • May 2025
  • Jun 2025
  • Jul 2025
  • Aug 2025
  • Sep 2025
  • Oct 2025
  • Nov 2025
  • Dec 2025
  • Jan 2026
  • Feb 2026
  • Mar 2026
Cheapest Day of the Week Friday

The cheapest day(s) of the week to fly from Saint Louis to Detroit is Friday.

  • Sun Sunday
  • Mon Monday
  • Tue Tuesday
  • Wed Wednesday
  • Thu Thursday
  • Fri Friday
  • Sat Saturday
What’s the most popular airline flying from Saint Louis to Detroit?

The most popular airline flying from Saint Louis to Detroit is Southwest Airlines. Find the latest flight deals on Wego.

How far is Detroit from Saint Louis?

The flight distance between Saint Louis and Detroit is 732km. Check all available flights on Wego.

All Airports in Saint Louis

St Louis Lambert Intl Airport STL

Popular Airlines Flying From Saint Louis to Detroit

Southwest Airlines ‏()

Popular Destinations From Detroit

Popular Destinations From Saint Louis

Popular Hotels in Detroit