Cheap flights from Saint Louis to Key West
Selected dates may not give results due to COVID-19. We suggest you change the dates.
Round trip One way
Round trip
One way
Select departure
No results match your search criteria
  • Latest searches
Select arrival
No results match your search criteria
  • Latest searches
Round trip One way
Round trip
One way
{{ weekDay }}
{{ panel.label }}
Looking for a one-way flight?
{{ fromDate | dateToDayNumber }}

{{ fromDate | dateToMonthName }}

{{ fromDate | dateToDayName }}

{{ flexibleFromDateLabel }}
{{ option.label }}
?
{{ flexibleToDateLabel }}
{{ option.label }}
Class and passengers
Class
Economy
Available for Economy only
Number of passengers
Adults
{{ adults }}
Children
{{ children }}
Infants
{{ infants }}
  • Compare with:
    Sponsored

Find cheap flights from Saint Louis to Key West

Fly Scanner helps you compare the best deals to Key West, offering the most cost effective solutions for your trip. Find your airline ticket at the best price in seconds by comparing fares from hundreds of airlines and online travel agencies in a single search!

Are you looking for a Saint Louis - Key West direct flight?

If you are looking for direct flights only, just filter your search and we will include the best offers for you by selecting the cheapest ones among all the companies and agencies operating on the web. Try to customize your search and find the ideal airline ticket for you!

All Saint Louis - Key West flight offers in one search

With Fly Scanner you will find all flight offers from Saint Louis to Key West in one place, without wasting time. In just a few seconds you can compare all available flight offers and find the one that is most convenient for you.

Find only what interests you

The search engine Fly Scanner will show you in a few seconds airline tickets with the cheapest prices, including only results based on your preferences: the wide choice of filters will help you find the flight that best suits your needs, such as exclusively Saint Louis - Key West direct flights.

Frequently Asked Questions

Frequently asked questions about flights from Saint Louis to Key West.

How much does a Saint Louis - Key West flight cost?

The availability of airline tickets can vary greatly depending on the time of year and destination. This information is currently unavailable for flights from Saint Louis to Key West.

How far is Saint Louis from Key West?

Saint Louis is about 1102 mi from Key West.

What are the airports in Key West?

Key West has one airport: Key West - International.

What are the airports in Saint Louis?

Saint Louis has one airport: Saint Louis - Lambert.

What are the most popular destinations searched for in United States?

The most searched cities in United States according to our users are: Houston, Los Angeles, Miami, New York City, Orlando.

What is the cheapest month to fly from Saint Louis to Key West?

The cheapest month to fly from Saint Louis to Key West is May.

What is the most expensive month to fly from Saint Louis to Key West?

The most expensive month to fly from Saint Louis to Key West is June.

What is the best day of the week to fly from Saint Louis to Key West?

For flights from Saint Louis to Key West Saturday is on average the cheapest day to fly, while Saturday is the most expensive day to fly.
How do we get the info you see here? Please note that we offer an online comparison service and that all information and prices regarding services and/or products available on our website are provided by our third-party partners. We do our best to show you up-to-date information, but please note that we are not responsible for the completeness or accuracy of the information published, so please check all conditions carefully on the website of the partner before making a booking. Please check our Terms and Conditions for more details. Read more