Find Cheap Flights from Lambert-St Louis to Key West (STL - EYW)

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Fri 1/19
Fri 1/26
Any month
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Good to Know

Low Season:
August
Best time to beat the crowds
2%
expected price decrease
High Season:
May
Most popular time to fly
5%
expected price increase
Average Price:
$546
(avg. price over the last 2 weeks)
Good Deal:
$423
or less (round trip)

When to Book Flights from Lambert-St Louis to Key West

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $423 or less.
The cheapest flight from Lambert-St Louis to Key West was found 60 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
High season is considered to be April, May and June. The cheapest month to fly is August.
Morning departure is around 1% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Lambert-St Louis to Key West Flights

How long does a flight from Lambert-St Louis to Key West take?
An average nonstop flight takes 9h 55m, covering a distance of 1102 miles.
Which airlines provide the cheapest flights from Lambert-St Louis to Key West?
In the past 3 days, the cheapest round-trip tickets were found on American Airlines ($309) and United ($567)
Do I need a passport to fly between Lambert-St Louis and Key West?
No.

Book cheap flights from Lambert-St Louis to Key West (round-trip)

Airports
Origin
St. Louis
$309
only
$309
Destination
Key West
$309
only
$309
Sat, Feb 17
STL
EYW
17h 46m
Thu, Feb 22
EYW
STL
8h 52m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27289 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
SJU
MIA
Okay 5.0

The crew are always excellent.

The comfort is horrible. Airline companies keep shrinking the seats and charging more. Also they keep serving less food. And flight changes.

TPA
PHX
Excellent 9.3

We had a newer plane. I LOVED that the seatbelts had a little more room, and also that each seat had it down screen. I really enjoyed the new pre-flight video; it was entertaining and I appreciated that it allowed the crew to get ready, rather than demonstrate a seatbelt for us.

I am not sure how boarding groups work, but I will never understand why we don't board from the back of the plane to the front. People waiting and trying to load luggage or climb over others makes the pre-flight more stressful than it needs to be. (This is obviously not specific to you airline.)

LAX
MIA
Excellent 10.0

Courteous and efficient service, good communication from employees.

Rude passengers reclining all the way without notice.

ONT
DFW
Excellent 10.0

Everything was great

MIA
GUA
Mediocre 2.3

Nothing, American Airlines is the worst major airline now.

The staff in Miami Airport is really bad, worst attitude I have seen, old planes, not comfortable, definetly the worst major airline now.

Fri, Jan 26
STL
EYW
9h 55m
Fri, Feb 2
EYW
STL
21h 33m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 53827 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
FLL
EWR
Good 6.6

Food was not good plane was dirty

BOI
DEN
Mediocre 3.6

I found the reason for being late to be questionable They said heavy snow but as i flew in i looked out the window and saw all roads nicely cleared That does not happen in 3 hours

They did not get my liggage to the connecting flight And here i am in Ukraine with no winter clothes at 7 below 3 days later

EWR
SJO
Mediocre 2.0

Más espacio, al menos una película que ver, y algún bocadillo por ser un vuelo de tantas horas

BOS
EWR
Excellent 8.0

it was very punctual and easy to get around.

ORD
BNA
Excellent 10.0

Everything

Sat, Mar 3
STL
EYW
17h 46m
Thu, Mar 8
EYW
STL
7h 03m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27289 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
MIA
Excellent 10.0

Courteous and efficient service, good communication from employees.

Rude passengers reclining all the way without notice.

LIM
CLO
Excellent 8.0

The entertainment screens did not work in my seat and my wife's seat.

DCA
MIA
Excellent 10.0

The wait time for the connection was not too long. But on the way back to the US, I almost missed my flight from Miami to Washington-DC because I didint have enough time to go though imigration and also had to wait for my luggages. Thank you!

ONT
DFW
Excellent 10.0

Everything was great

MIA
GUA
Mediocre 2.3

Nothing, American Airlines is the worst major airline now.

The staff in Miami Airport is really bad, worst attitude I have seen, old planes, not comfortable, definetly the worst major airline now.

Sat, Feb 17
STL
EYW
17h 46m
Wed, Feb 21
EYW
STL
16h 09m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27289 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
CLT
LHR
Okay 5.0

We didn’t crash

Pushed out of my seat by huge man next to me who ate smelly crisps and farted most of the trip

MIA
GUA
Mediocre 2.3

Nothing, American Airlines is the worst major airline now.

The staff in Miami Airport is really bad, worst attitude I have seen, old planes, not comfortable, definetly the worst major airline now.

ONT
DFW
Excellent 10.0

Everything was great

ORD
LGA
Okay 5.3

Gates, delays, changes

Boarding was a mess. No opportunity for priority boarding. Flight crew no help. Just another hum drum experience.

SJU
MIA
Okay 5.0

The crew are always excellent.

The comfort is horrible. Airline companies keep shrinking the seats and charging more. Also they keep serving less food. And flight changes.

Thu, Apr 12
STL
EYW
16h 18m
Mon, Apr 16
EYW
STL
16h 15m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27289 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
MIA
GUA
Mediocre 2.3

Nothing, American Airlines is the worst major airline now.

The staff in Miami Airport is really bad, worst attitude I have seen, old planes, not comfortable, definetly the worst major airline now.

CLT
LHR
Okay 5.0

We didn’t crash

Pushed out of my seat by huge man next to me who ate smelly crisps and farted most of the trip

PDX
DFW
Excellent 8.6

Seats smaller than before.

SJU
MIA
Okay 5.0

The crew are always excellent.

The comfort is horrible. Airline companies keep shrinking the seats and charging more. Also they keep serving less food. And flight changes.

DCA
MIA
Excellent 10.0

The wait time for the connection was not too long. But on the way back to the US, I almost missed my flight from Miami to Washington-DC because I didint have enough time to go though imigration and also had to wait for my luggages. Thank you!

Thu, Mar 15
STL
EYW
16h 18m
Mon, Mar 19
EYW
STL
16h 17m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27289 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
TPA
PHX
Excellent 9.3

We had a newer plane. I LOVED that the seatbelts had a little more room, and also that each seat had it down screen. I really enjoyed the new pre-flight video; it was entertaining and I appreciated that it allowed the crew to get ready, rather than demonstrate a seatbelt for us.

I am not sure how boarding groups work, but I will never understand why we don't board from the back of the plane to the front. People waiting and trying to load luggage or climb over others makes the pre-flight more stressful than it needs to be. (This is obviously not specific to you airline.)

ONT
DFW
Excellent 10.0

Everything was great

PDX
DFW
Excellent 8.6

Seats smaller than before.

CLT
LHR
Okay 5.0

We didn’t crash

Pushed out of my seat by huge man next to me who ate smelly crisps and farted most of the trip

SJU
MIA
Okay 5.0

The crew are always excellent.

The comfort is horrible. Airline companies keep shrinking the seats and charging more. Also they keep serving less food. And flight changes.

Sat, Feb 17
STL
EYW
17h 46m
Sat, Feb 24
EYW
STL
4h 27m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27289 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
CLT
LHR
Okay 5.0

We didn’t crash

Pushed out of my seat by huge man next to me who ate smelly crisps and farted most of the trip

TPA
PHX
Excellent 9.3

We had a newer plane. I LOVED that the seatbelts had a little more room, and also that each seat had it down screen. I really enjoyed the new pre-flight video; it was entertaining and I appreciated that it allowed the crew to get ready, rather than demonstrate a seatbelt for us.

I am not sure how boarding groups work, but I will never understand why we don't board from the back of the plane to the front. People waiting and trying to load luggage or climb over others makes the pre-flight more stressful than it needs to be. (This is obviously not specific to you airline.)

ORD
MCO
Okay 4.6

American continues to surprise through their lack of consideration and cheapness Prefer to have seat empty on the front rather than move passengers that are loyal frequent flyers. The most important point for American is you have to pay for everything including for flight status. No longer miles flew but how much you pay them

PDX
DFW
Excellent 8.6

Seats smaller than before.

LAX
MIA
Excellent 10.0

Courteous and efficient service, good communication from employees.

Rude passengers reclining all the way without notice.

Sun, Mar 11
STL
EYW
16h 59m
Sun, Mar 18
EYW
STL
16h 17m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27289 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
PDX
DFW
Excellent 8.6

Seats smaller than before.

DUB
PHL
Excellent 8.6

Smooth boarding, the crew was really nice (and it didn't hurt that they were generous with the wine).

TPA
PHX
Excellent 9.3

We had a newer plane. I LOVED that the seatbelts had a little more room, and also that each seat had it down screen. I really enjoyed the new pre-flight video; it was entertaining and I appreciated that it allowed the crew to get ready, rather than demonstrate a seatbelt for us.

I am not sure how boarding groups work, but I will never understand why we don't board from the back of the plane to the front. People waiting and trying to load luggage or climb over others makes the pre-flight more stressful than it needs to be. (This is obviously not specific to you airline.)

MIA
GUA
Mediocre 2.3

Nothing, American Airlines is the worst major airline now.

The staff in Miami Airport is really bad, worst attitude I have seen, old planes, not comfortable, definetly the worst major airline now.

DCA
MIA
Excellent 10.0

The wait time for the connection was not too long. But on the way back to the US, I almost missed my flight from Miami to Washington-DC because I didint have enough time to go though imigration and also had to wait for my luggages. Thank you!

Show more results

Lambert-St Louis to Key West Flight Information

Flights Arrive in Key West
Flights Depart from Lambert-St Louis
Flight Price $309
Distance 1102 miles
Airlines American Airlines, United
*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.