Cheap Flight Tickets from St Louis (STL) to Key West (EYW), Starting at $342

Good to Know: Cheapest and Fastest STL - EYW Flights

Useful information for finding best airline tickets from Lambert St Louis International to Key West International on your next trip.

Cheapest Round Trip Flight

$342

DL Delta Airlines • 1 stop • 6h 55m

Oct 08 – Oct 11

The cheapest round trip flight from St Louis to Key West (STL-EYW-STL) is currently $342

🔍 Search Flights

Fastest Flight

6h 55m

The fastest nonstop flight from St Louis to Key West (STL-EYW) takes 6h 55m

Top Airlines Flying from St Louis to Key West

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Latest Flight Deals from St Louis (STL) to Key West (EYW)

Compare and book low fare round-trip air tickets from St Louis to Key West. Ideal for travelers with confirmed return itineraries.

Oct 08 - Oct 11, Economy
DL
St Louis → Key West
6h 55m
12:00 PM - 5:15 PM • 1 stop
DL
St Louis → Key West
8h 35m
2:00 PM - 6:15 PM • 1 stop
$342
Delta Airlines
Oct 08 - Oct 11, Economy
DL
St Louis → Key West
9h 13m
6:00 AM - 12:53 PM • 1 stop
DL
St Louis → Key West
12h 4m
11:51 AM - 6:15 PM • 1 stop
$342
Delta Airlines
Oct 08 - Oct 11, Economy
DL
St Louis → Key West
7h 16m
2:25 PM - 8:01 PM • 1 stop
DL
St Louis → Key West
8h 35m
2:00 PM - 6:15 PM • 1 stop
$342
Delta Airlines
Oct 08 - Oct 11, Economy
AA
St Louis → Key West
11h 46m
8:48 AM - 4:54 PM • 1 stop
AA
St Louis → Key West
9h
7:19 PM - 11:59 PM • 1 stop
$460
American Airlines
Oct 08 - Oct 11, Economy
AA
St Louis → Key West
11h 43m
5:00 AM - 1:03 PM • 1 stop
AA
St Louis → Key West
10h 14m
2:34 PM - 7:48 PM • 1 stop
$460
American Airlines
Oct 08 - Oct 11, Economy
DL
St Louis → Key West
15h 15m
7:00 AM - 5:15 PM • 1 stop
DL
St Louis → Key West
10h 40m
7:40 AM - 1:20 PM • 1 stop
$529
Delta Airlines

Fly from St Louis to Key West with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from St Louis to Key West? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on St Louis to Key West Flights

What are the airports in St Louis?
STL
What’s the most popular airline flying from STL to EYW?
The most popular airline flying from St Louis to Key West are
Can I fly from STL to EYW non-stop?
NO
Which airlines fly nonstop between St Louis and Key West?
The non-stop flights between St Louis and Key West are .
What’s the earliest departure time from STL to EYW Airport?
The earliest flight leaves STL at 5:00 am and lands in EYW - Key West International
What are the airports in Key West?
EYW
Can I make changes to my St Louis to Key West flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from STL to EYW?
Read the fare rules of the St Louis to Key West air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from St Louis and Key West?
operate flights between St Louis and Key West
How long does a flight from St Louis to Key West take?
It takes approximately 3 hour to fly non-stop from STL to EYW, which is 1100.35 miles by air.
Which airlines provide the cheapest flights from St Louis (STL) to Key West (EYW) ?
In the past couple of days, the cheapest tickets to EYW from STL were found on AA : USD 460
Do I need a passport to fly between STL and EYW?
No
What’s the latest departure time from STL to EYW ?
The last flight leaves STL at 2:25 pm

Essential Information for Booking Flights from St Louis (STL) - AI Insights

What's the cheapest airline from stl to eyw?
You can find affordable flights from Lambert St Louis International Airport (stl) to Key West International Airport (eyw) with American Airlines (AA). For a premium economy experience, consider booking a round trip ticket with 48 days of advance booking for the best low fares. You can search for cheap airline tickets on fareleaders.com to compare prices and find the best airfares.
What's the popular airline to fly from stl to eyw?
You can fly from Lambert St Louis International Airport (stl) to Key West International Airport (eyw) on American Airlines (AA) for a premium economy experience. This is a round-trip journey with no stops, and you can book your flight 48 days in advance to get the best airfare deals. Look for cheap flights and airfares on fareleaders.com for your next weekend getaway.
What's the cheapest day of the week to fly from stl to eyw?
The cheapest day to fly from Lambert St Louis International (STL) to Key West International (EYW) is Thursday. Flying on this day can help you save on airfares, making it a budget-friendly option for your round-trip journey.
What's the cheapest month to fly from stl to eyw?
The cheapest month to fly from St. Louis (STL) to Key West (EYW) is December, as it tends to have lower airfares compared to other months. You can expect to find budget-friendly flights during this time. Low fares and savings are available for Premium Economy bookings, making it an excellent option for enhanced comfort.
Which airline/airlines fly from stl to eyw?
The airlines that fly from Lambert St Louis International Airport (STL) to Key West International Airport (EYW) include Delta Airlines, Frontier Airlines, United Airlines, and American Airlines. You can find budget-friendly flights on these airlines for your round-trip journey. For the best deals, book at least 48 days in advance.
What is the cheapest airfare from Milwaukee to Key West?
The cheapest airfare from Milwaukee to Key West can be found on American Airlines (AA) with a round-trip fare starting from $X, which is available for booking until December for the best price.
How far in advance should I book my flight to get the best fare?
To get the best fare, it is recommended to book your flight at least 48 days in advance, as this allows you to take advantage of advance booking discounts and find the cheapest airfare from Milwaukee to Key West.
Can I book a Premium Economy seat on this flight?
Yes, you can book a Premium Economy seat on this flight, which offers enhanced comfort with more legroom and amenities. The Premium Economy seats are available on American Airlines (AA) and can be booked in advance to secure your preferred seat.
How many stops are there on this round trip flight?
There are 0 stops on this round trip flight from Milwaukee to Key West.
What is the web agency for booking flights in Spanish?
The web agency for booking flights in Spanish is not specified, but you can try searching on websites like Expedia or Kayak to find the best deals.
Can I book a weekend getaway flight with airfare?
Yes, you can book a weekend getaway flight with airfare. American Airlines (AA) offers a variety of flights to Key West that can be booked in advance to ensure availability and the best price.

St Louis (STL) to Key West (EYW): Airport Information

Origin Airport Lambert St Louis International , St Louis, US
Destination Airport Key West International , Key West, US
Distance 1100 miles

More Flight Options for St Louis (STL) and Key West (EYW)

Why Fareleaders for STL to EYW Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on St Louis to Key West flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on STL to EYW flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of St Louis to Key West flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the St Louis (STL) to Key West (EYW)
Terms and Conditions*