What is the cheapest airline that flies from Missouri to United States?

Frontier, Spirit Airlines, and United Airlines are the most popular carriers operating from Missouri to United States

How long is the flight from Missouri to United States?

Flight times vary depending on what airport in Missouri you fly out of and what airport in United States you fly into. For example, flying from Kansas City to Los Angeles takes 3h 25m on average. On the other hand, flying from St. Louis to Los Angeles takes 3h 50m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

How many flights depart from Missouri to United States on average per week?

The number of flights available between Missouri and United States is 393 per week as of December 2025. The most frequent departure day is Thu, with 34% of weekly flights leaving on this day.

How many flights depart from Missouri to United States on average per day?

As of December 2025, 56 flights take off from Missouri and land in United States each day. The most common flight departure time for this route is 11:00AM, with 44% of daily flights taking off in the afternoon.

What airlines fly to United States?

Southwest, American Airlines and Frontier are the top three most popular airlines that fly to United States from Missouri according to our data. Southwest is the first choice among our users, with 30% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 9 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Missouri to United States?

Prices for flights from Missouri to United States refresh daily.

How many operators does momondo search for flights from Missouri to United States?

There are 7 operators available for flights from Missouri to United States as of December 2025.

How old do you have to be to fly from Missouri to United States?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Missouri to United States.

What documentation or ID do you need to fly to United States?

The necessary travel and health documents for your United States trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$40 Cheap Flights from Missouri to the United States in 2025/26

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Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:42 pm - 8:58 pm

STL

MCO

2h 16mnonstop

8:30 am - 10:23 am

MCO

STL

2h 53mnonstop

$59Frontier

Tue, Jan 20 - Fri, Jan 23

5:11 pm - 8:27 pm

STL

MCO

2h 16mnonstop

6:15 am - 8:05 am

MCO

STL

2h 50mnonstop

$68Frontier

Wed, Jan 7 - Mon, Jan 12

5:11 pm - 8:27 pm

STL

MCO

2h 16mnonstop

9:20 am - 11:11 am

MCO

STL

2h 51mnonstop

$69Frontier

Sun, Jan 18 - Sat, Jan 24

7:16 pm - 8:17 pm

MCI

DEN

2h 01mnonstop

3:49 pm - 6:31 pm

DEN

MCI

1h 42mnonstop

$77Frontier

Fri, Feb 27 - Mon, Mar 2

5:04 pm - 8:51 pm

MCI

MCO

2h 47mnonstop

1:55 pm - 4:09 pm

MCO

MCI

3h 14mnonstop

$110Spirit Airlines

Tue, Jan 27 - Tue, Feb 3

5:04 pm - 8:51 pm

MCI

MCO

2h 47mnonstop

1:55 pm - 4:09 pm

MCO

MCI

3h 14mnonstop

$111Spirit Airlines

Tue, Jan 13 - Tue, Jan 20

7:00 am - 8:14 am

MCI

LAS

3h 14mnonstop

10:05 pm - 9:29 am

LAS

MCI

9h 24m1 stop

$120Multiple Airlines

Wed, Feb 18 - Sat, Feb 21

8:36 pm - 2:30 pm

MCI

LAS

19h 54m1 stop

6:48 pm - 11:33 pm

LAS

MCI

2h 45mnonstop

$130Multiple Airlines

Sat, Feb 21 - Tue, Feb 24

7:45 am - 1:03 pm

STL

LGA

4h 18m1 stop

10:00 am - 2:27 pm

LGA

STL

5h 27m1 stop

$261United Airlines

Wed, Apr 15 - Tue, Apr 21

8:15 am - 2:30 pm

STL

LGA

5h 15m1 stop

6:30 am - 5:10 pm

LGA

STL

11h 40m2 stops

$282Southwest

Tue, Jan 13 - Tue, Jan 20

Southwest flights from Missouri to United States

Our best Southwest deals on Missouri to United States flight tickets

Southwest

Jan 13

STL8:15 amLambert-St Louis

5h 15m

1 stop

LGA2:30 pmNew York LaGuardia

Jan 20

LGA6:30 amNew York LaGuardia

11h 40m

2 stops

STL5:10 pmLambert-St Louis

$282

Find similar

Southwest

Dec 25

STL7:10 amLambert-St Louis

2h 20m

LGA10:30 amNew York LaGuardia

Dec 31

LGA6:30 pmNew York LaGuardia

2h 50m

STL8:20 pmLambert-St Louis

$303

Find similar

Southwest

Dec 31

STL4:20 pmLambert-St Louis

4h 30m

1 stop

MIA9:50 pmMiami

Jan 7

MIA4:55 pmMiami

3h 05m

STL7:00 pmLambert-St Louis

$308

Find similar

American Airlines flights from Missouri to United States

Our best American Airlines deals on Missouri to United States flight tickets

American Airlines

Dec 31

MCI10:43 amKansas City

6h 17m

1 stop

DEN4:00 pmDenver Intl

Jan 6

DEN7:20 amDenver Intl

6h 10m

1 stop

MCI2:30 pmKansas City

$281

Find similar

American Airlines

Dec 24

STL6:55 amLambert-St Louis

2h 31m

LGA10:26 amNew York LaGuardia

Dec 31

LGA9:10 amNew York LaGuardia

2h 54m

STL11:04 amLambert-St Louis

$283

Find similar

American Airlines

Jan 17

STL5:07 pmLambert-St Louis

2h 58m

MIA9:05 pmMiami

Jan 24

MIA7:00 amMiami

3h 08m

STL9:08 amLambert-St Louis

$286

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Missouri to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisOrlando

STL - MCO

STLMCO

Lambert-St Louis

Tue 1/20

5:42 pm-8:58 pm

Nonstop2h 16m

Orlando

Fri 1/23

8:30 am-10:23 am

Nonstop2h 53m

$59

St. LouisOrlando

STL - MCO

STLMCO

Lambert-St Louis

Wed 1/7

5:11 pm-8:27 pm

Nonstop2h 16m

Orlando

Mon 1/12

6:15 am-8:05 am

Nonstop2h 50m

$68

St. LouisOrlando

STL - MCO

STLMCO

Lambert-St Louis

Sun 1/18

5:11 pm-8:27 pm

Nonstop2h 16m

Orlando

Sat 1/24

9:20 am-11:11 am

Nonstop2h 51m

$69

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Fri 2/27

7:16 pm-8:17 pm

Nonstop2h 01m

Denver Intl

Mon 3/2

3:49 pm-6:31 pm

Nonstop1h 42m

$77

Kansas CityOrlando

MCI - MCO

MCIMCO

Kansas City

Tue 1/27

5:04 pm-8:51 pm

Nonstop2h 47m

Orlando

Tue 2/3

1:55 pm-4:09 pm

Nonstop3h 14m

$110

Kansas CityOrlando

MCI - MCO

MCIMCO

Kansas City

Tue 1/13

5:04 pm-8:51 pm

Nonstop2h 47m

Orlando

Tue 1/20

1:55 pm-4:09 pm

Nonstop3h 14m

$111

Kansas CityLas Vegas

MCI - LAS

MCILAS

Kansas City

Wed 2/18

7:00 am-8:14 am

Nonstop3h 14m

Las Vegas Harry Reid Intl

Sat 2/21

10:05 pm-9:29 am

1 stop9h 24m

$120

Kansas CityLas Vegas

MCI - LAS

MCILAS

Kansas City

Sat 2/21

8:36 pm-2:30 pm

1 stop19h 54m

Las Vegas Harry Reid Intl

Tue 2/24

6:48 pm-11:33 pm

Nonstop2h 45m

$130

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

Wed 4/15

7:45 am-1:03 pm

1 stop4h 18m

New York LaGuardia

Tue 4/21

10:00 am-2:27 pm

1 stop5h 27m

$261

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

Tue 1/13

8:15 am-2:30 pm

1 stop5h 15m

New York LaGuardia

Tue 1/20

6:30 am-5:10 pm

2 stops11h 40m

$282

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Missouri to United States

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

Prices

Airlines

Other information

What is the cheapest month to fly to United States?

In general, April is the cheapest month to fly from Missouri to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $259. If you aren’t able to travel during the month of April, then book flights to United States from Missouri during September instead. Flights to United States in September, while not as cheap as those in April, still average around $281.

What is the cheapest day to depart on your flight to United States?

According to our data, Thursday is the cheapest day to fly to United States from Missouri. The lowest ticket price found for a Thursday departure recently was $401. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $650. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the evening when flights can be purchased for as low as $390. Try not to purchase tickets at noon because they tend to be around $925. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Missouri to United States flight route?

Fly from Lambert-St Louis to Orlando for the best Missouri - United States flight prices

How far in advance should I book a flight to United States?

You are more likely to see cheaper flights to United States from Missouri when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $320 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from Missouri for as low as $217 on momondo.

What cabin class options are available on Missouri to United States flights?

There are 4 cabin classes available to choose from on Missouri to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Missouri to United States flights?

No. A direct flight is the cheapest option for a flight between Missouri to United States.

Cheap Missouri to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to United States

Best Price Found	$71
Fastest flight time	1h 05m
Direct flights	Every day
Airports in United States	4,296 airports

The best one-way flight to United States from Missouri in the past 72 hours is $71. The best round-trip flight deal from Missouri to United States found on momondo in the last 72 hours is $100.

The fastest flight from Missouri to United States takes 1h 05m

Direct flights go from Missouri to United States every day.

There are 4,296 airports in United States. From Missouri there are direct flights to Denver Intl (DEN).

Search flight deals

When did momondo last update prices for flights from Missouri to United States?
Prices for flights from Missouri to United States refresh daily.
How many operators does momondo search for flights from Missouri to United States?
There are 7 operators available for flights from Missouri to United States as of December 2025.
How old do you have to be to fly from Missouri to United States?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Missouri to United States.
What documentation or ID do you need to fly to United States?
The necessary travel and health documents for your United States trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Missouri to United States?
momondo data reveals that the most frequently booked plane model on the route from Missouri to United States is Boeing 737 MAX 8, representing 21.90% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 16.48%, Boeing 737-700 Passenger/BBJ1 (winglets) at 10.46%, and Boeing 737-800 at 6.43%.

Best airlines flying from Missouri to United States

Compare and see reviews for airlines that fly from Missouri to United States with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $69	Free Cancellation	Rating 6.3 8,189 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $70	Free Cancellation	Rating 5.8 3,080 reviews	Search Frontier flights
Contour	PriceFrom $118	Free Cancellation	Rating 7.6 43 reviews	Search Contour flights
Delta	PriceFrom $118	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
Allegiant Air	PriceFrom $130	Free Cancellation	Rating 7.2 700 reviews	Search Allegiant Air flights
United Airlines	PriceFrom $150	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
American Airlines	PriceFrom $158	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
Southwest	PriceFrom $160	Free Cancellation	Rating 7.9 4,252 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $256	Free Cancellation	Rating 8.0 11,479 reviews	Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to United States?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Missouri to United States. momondo saves you time and could save you money on your trip.

Can I find flights from Missouri to United States with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to United States from Missouri with this policy.

How can momondo help me find flights from Missouri to United States?

Once you have performed a search for Missouri to United States flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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

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Popular cities in the United States

Flights to New Yorkfrom $45

Flights to Los Angelesfrom $48

Flights to Miamifrom $49

Flights to Chicagofrom $58

Flights to Orlandofrom $40

Flights to San Franciscofrom $58

Flights to Las Vegasfrom $49

Flights to Washington, D.C.from $57

Flights to Bostonfrom $51

Flights to Atlantafrom $46

Flights to Dallasfrom $57

Flights to Seattlefrom $58

Cheap flights from Missouri to the United States from $40

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 the United States departing on 1/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Missouri to the United States

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Southwest flights from Missouri to United States

Our best Southwest deals on Missouri to United States flight tickets

American Airlines flights from Missouri to United States

Our best American Airlines deals on Missouri to United States flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Missouri to the United States that are best for you.

See travel insights to the United States from

How to get the cheapest flight ticket from Missouri to United States

What is the cheapest month to fly to United States?

What is the cheapest day to depart on your flight to United States?

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the evening when flights can be purchased for as low as $390. Try not to purchase tickets at noon because they tend to be around $925. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Missouri to United States flight route?

Fly from Lambert-St Louis to Orlando for the best Missouri - United States flight prices

How far in advance should I book a flight to United States?

What cabin class options are available on Missouri to United States flights?

There are 4 cabin classes available to choose from on Missouri to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Missouri to United States flights?

No. A direct flight is the cheapest option for a flight between Missouri to United States.

What is the cheapest airline that flies from Missouri to United States?

Frontier, Spirit Airlines, and United Airlines are the most popular carriers operating from Missouri to United States

What airlines fly to United States?

How many flights depart from Missouri to United States on average per day?

As of December 2025, 56 flights take off from Missouri and land in United States each day. The most common flight departure time for this route is 11:00AM, with 44% of daily flights taking off in the afternoon.

How many flights depart from Missouri to United States on average per week?

The number of flights available between Missouri and United States is 393 per week as of December 2025. The most frequent departure day is Thu, with 34% of weekly flights leaving on this day.

How long is the flight from Missouri to United States?

Cheap Missouri to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to United States

Best Price Found

Fastest flight time

Direct flights

Airports in United States

When did momondo last update prices for flights from Missouri to United States?

How many operators does momondo search for flights from Missouri to United States?

How old do you have to be to fly from Missouri to United States?

What documentation or ID do you need to fly to United States?

What is the most popular plane model from Missouri to United States?

Best airlines flying from Missouri to United States

Compare and see reviews for airlines that fly from Missouri to United States with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to United States?

Can I find flights from Missouri to United States with flexible booking policies on momondo?

How can momondo help me find flights from Missouri to United States?

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

An easier way to manage your United States 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo