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Cheap flights from Missouri to Key West from $175

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Key West departing on 11/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Missouri to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
8:42 am - 3:42 pm
SGF
-
EYW
6h 00m
1 stop
Allegiant Air Logo
3:51 pm - 9:33 am
EYW
-
SGF
18h 42m
1 stop
$245Allegiant Air
Mon, Aug 17 - Thu, Aug 20
Delta Logo
9:24 am - 5:23 pm
STL
-
EYW
6h 59m
1 stop
Delta Logo
6:18 pm - 10:15 pm
EYW
-
STL
4h 57m
1 stop
$293Delta
Tue, Jul 7 - Tue, Jul 14
Allegiant Air Logo
8:51 am - 3:51 pm
SGF
-
EYW
6h 00m
1 stop
Allegiant Air Logo
8:48 pm - 9:30 am
EYW
-
SGF
13h 42m
1 stop
$294Allegiant Air
Mon, Jul 20 - Thu, Jul 23
Delta Logo
9:00 am - 2:52 pm
MCI
-
EYW
4h 52m
1 stop
Delta Logo
6:15 pm - 11:58 pm
EYW
-
MCI
6h 43m
1 stop
$297Delta
Sat, Aug 22 - Tue, Sep 1
American Airlines Logo
12:40 pm - 6:48 pm
STL
-
EYW
5h 08m
1 stop
American Airlines Logo
1:47 pm - 8:55 pm
EYW
-
STL
8h 08m
2 stops
$298American Airlines
Tue, Jul 7 - Tue, Jul 14
American Airlines Logo
6:00 am - 12:55 pm
MCI
-
EYW
5h 55m
1 stop
American Airlines Logo
1:40 pm - 10:59 pm
EYW
-
MCI
10h 19m
2 stops
$302American Airlines
Sat, Aug 22 - Tue, Sep 1
Multiple Airlines Logo
4:09 pm - 11:25 am
STL
-
EYW
18h 16m
1 stop
Multiple Airlines Logo
12:07 pm - 11:59 pm
EYW
-
STL
12h 52m
1 stop
$317Multiple Airlines
Wed, Aug 12 - Mon, Aug 17
Multiple Airlines Logo
6:57 pm - 12:31 pm
MCI
-
EYW
16h 34m
1 stop
Multiple Airlines Logo
10:27 pm - 9:50 am
EYW
-
MCI
12h 23m
1 stop
$325Multiple Airlines
Sun, Jul 26 - Thu, Jul 30
United Airlines Logo
1:53 pm - 3:06 pm
JLN
-
EYW
24h 13m
2 stops
United Airlines Logo
4:05 pm - 11:19 pm
EYW
-
JLN
8h 14m
1 stop
$552United Airlines
Fri, Oct 23 - Tue, Oct 27
United Airlines Logo
1:53 pm - 3:06 pm
JLN
-
EYW
24h 13m
2 stops
United Airlines Logo
4:05 pm - 11:19 pm
EYW
-
JLN
8h 14m
1 stop
$632United Airlines
Fri, Oct 23 - Fri, Oct 30

Allegiant Air flights from Missouri to Key West

Our best Allegiant Air deals on Missouri to Key West flight tickets
Allegiant Air
Aug 17
SGF8:42 amSpringfield-Branson
6h 00m
1 stop
EYW3:42 pmKey West
Aug 20
EYW3:51 pmKey West
18h 42m
1 stop
SGF9:33 amSpringfield-Branson
$245
Allegiant Air
Aug 17
SGF8:42 amSpringfield-Branson
6h 00m
1 stop
EYW3:42 pmKey West
Aug 20
EYW3:51 pmKey West
18h 42m
1 stop
SGF9:33 amSpringfield-Branson
$255
Allegiant Air
Jul 20
SGF8:51 amSpringfield-Branson
6h 00m
1 stop
EYW3:51 pmKey West
Jul 23
EYW8:48 pmKey West
13h 42m
1 stop
SGF9:30 amSpringfield-Branson
$294

Delta flights from Missouri to Key West

Our best Delta deals on Missouri to Key West flight tickets
Delta
Jul 7
STL9:24 amLambert-St Louis
6h 59m
1 stop
EYW5:23 pmKey West
Jul 14
EYW6:18 pmKey West
6h 35m
1 stop
STL11:53 pmLambert-St Louis
$293
Delta
Aug 22
MCI9:00 amKansas City
4h 52m
1 stop
EYW2:52 pmKey West
Sep 1
EYW6:15 pmKey West
6h 43m
1 stop
MCI11:58 pmKansas City
$297
Delta
Jul 20
MCI1:18 pmKansas City
5h 33m
1 stop
EYW7:51 pmKey West
Jul 29
EYW7:50 amKey West
5h 23m
1 stop
MCI12:13 pmKansas City
$313

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated May 26, 2026.
Use the filters below to find and compare flights from Missouri to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpringfieldKey West

SGF - EYW

SGFEYW

Springfield-Branson

Mon 8/17

8:42 am-3:42 pm

1 stop6h 00m

Key West

Thu 8/20

3:51 pm-9:33 am

1 stop18h 42m

$245

St. LouisKey West

STL - EYW

STLEYW

Lambert-St Louis

Tue 7/7

9:24 am-5:23 pm

1 stop6h 59m

Key West

Tue 7/14

6:18 pm-10:15 pm

1 stop4h 57m

$293

SpringfieldKey West

SGF - EYW

SGFEYW

Springfield-Branson

Mon 7/20

8:51 am-3:51 pm

1 stop6h 00m

Key West

Thu 7/23

8:48 pm-9:30 am

1 stop13h 42m

$294
Quickest round-trip

Kansas CityKey West

MCI - EYW

MCIEYW

Kansas City

Sat 8/22

9:00 am-2:52 pm

1 stop4h 52m

Key West

Tue 9/1

6:15 pm-11:58 pm

1 stop6h 43m

$297

St. LouisKey West

STL - EYW

STLEYW

Lambert-St Louis

Tue 7/7

12:40 pm-6:48 pm

1 stop5h 08m

Key West

Tue 7/14

1:47 pm-8:55 pm

2 stops8h 08m

$298

Kansas CityKey West

MCI - EYW

MCIEYW

Kansas City

Sat 8/22

6:00 am-12:55 pm

1 stop5h 55m

Key West

Tue 9/1

1:40 pm-10:59 pm

2 stops10h 19m

$302

St. LouisKey West

STL - EYW

STLEYW

Lambert-St Louis

Wed 8/12

4:09 pm-11:25 am

1 stop18h 16m

Key West

Mon 8/17

12:07 pm-11:59 pm

1 stop12h 52m

$317

Kansas CityKey West

MCI - EYW

MCIEYW

Kansas City

Sun 7/26

6:57 pm-12:31 pm

1 stop16h 34m

Key West

Thu 7/30

10:27 pm-9:50 am

1 stop12h 23m

$325

JoplinKey West

JLN - EYW

JLNEYW

Joplin

Fri 10/23

1:53 pm-3:06 pm

2 stops24h 13m

Key West

Tue 10/27

4:05 pm-11:19 pm

1 stop8h 14m

$552

JoplinKey West

JLN - EYW

JLNEYW

Joplin

Fri 10/23

1:53 pm-3:06 pm

2 stops24h 13m

Key West

Fri 10/30

4:05 pm-11:19 pm

1 stop8h 14m

$632

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Key West from

How to get the cheapest flight ticket from Missouri to Key West

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Key West?

In general, November is the cheapest month to fly from Missouri to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $121. If you are unable to visit Key West during the month of November, then departing from Missouri during the month June is also very affordable. Most momondo users find prices during this month for around $141.

How far in advance should I book a flight from Missouri to Key West?

You are more likely to see cheaper flights to Key West from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $422 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Missouri for as low as $308 on momondo.

Cheap Missouri to Key West flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Key West

Fastest flight time

4h 24m

Direct flights

None
The fastest flight from Missouri to Key West takes 4h 24m
There are no direct flights from Missouri to Key West. There are no popular flight routes from Missouri to Key West.
Search flight deals

Frequently asked questions about flying from Missouri to Key West

  • When did momondo last update prices for flights from Missouri to Key West Airport?

    Prices for flights from Missouri to Key West Airport were last updated today.

  • How many operators does momondo search for flights from Missouri to Key West Airport?

  • How old do you have to be to fly from Missouri to Key West Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Missouri to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The travel and health documents you'll need for your trip to Key West Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Missouri to Key West

Compare and see reviews for airlines that fly from Missouri to Key West with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $164Free CancellationRating
7.9
8,425 reviews
Search Delta flights
American AirlinesPriceFrom $222Free CancellationRating
7.1
11,629 reviews
Search American Airlines flights
United AirlinesPriceFrom $262Free CancellationRating
7.4
9,749 reviews
Search United Airlines flights

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Key West?

It is quick and easy to find Missouri to Key West flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Key West that suits you.

Can I find flights from Missouri to Key West with flexible booking policies on momondo?

Flights from Missouri to Key West with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Missouri to Key West?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Key West from Missouri.

I’m not ready to book a flight from Missouri to Key West right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Missouri to Key West flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Key West trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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