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Cheap flights from Missouri to the United States from $26

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 10/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Missouri to the United States

Cheap round-trip flights

Frontier Logo
7:52 pm - 9:20 pmSTL-DEN
2h 28mnonstop
Frontier Logo
6:00 am - 9:07 amDEN-STL
2h 07mnonstop
$88Frontier
Find Deal
Wed, Oct 15 - Sun, Oct 19
Frontier Logo
7:52 pm - 9:20 pmSTL-DEN
2h 28mnonstop
Frontier Logo
6:00 am - 9:07 amDEN-STL
2h 07mnonstop
$89Frontier
Find Deal
Fri, Oct 24 - Tue, Oct 28
Logo
10:35 am - 5:57 pmSTL-DFW
7h 22m1 stop
Logo
8:00 am - 9:54 amDFW-STL
1h 54mnonstop
$119
Find Deal
Thu, Oct 2 - Sun, Oct 5
Logo
10:57 am - 12:10 amSTL-DFW
13h 13m1 stop
Logo
7:30 am - 9:22 amDFW-STL
1h 52mnonstop
$124
Find Deal
Thu, Oct 9 - Sun, Oct 12
Spirit Airlines Logo
2:55 pm - 3:57 pmMCI-LAS
3h 02mnonstop
Spirit Airlines Logo
9:07 am - 2:00 pmLAS-MCI
2h 53mnonstop
$129Spirit Airlines
Find Deal
Wed, Oct 15 - Tue, Oct 21
Spirit Airlines Logo
2:55 pm - 3:57 pmMCI-LAS
3h 02mnonstop
Spirit Airlines Logo
12:35 pm - 5:31 pmLAS-MCI
2h 56mnonstop
$133Spirit Airlines
Find Deal
Tue, Oct 14 - Fri, Oct 17
United Airlines Logo
9:00 am - 10:20 amSTL-DEN
2h 20mnonstop
United Airlines Logo
5:40 pm - 8:46 pmDEN-STL
2h 06mnonstop
$133United Airlines
Find Deal
Sat, Oct 4 - Tue, Oct 7
United Airlines Logo
6:00 am - 9:39 amSTL-EWR
2h 39mnonstop
United Airlines Logo
9:15 am - 11:04 amEWR-STL
2h 49mnonstop
$161United Airlines
Find Deal
Wed, Oct 22 - Wed, Oct 29
Southwest Logo
2:40 pm - 11:25 pmSTL-LGA
7h 45m1 stop
Southwest Logo
6:30 pm - 8:20 pmLGA-STL
2h 50mnonstop
$208Southwest
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Fri, Nov 7 - Tue, Nov 11
Southwest Logo
3:15 pm - 9:30 pmMCI-ORD
6h 15m1 stop
Southwest Logo
4:20 pm - 11:20 pmORD-MCI
7h 00m1 stop
$209Southwest
Find Deal
Wed, Oct 1 - Fri, Oct 3

American Airlines flights from Missouri to United States

Our best American Airlines deals on Missouri to United States flight tickets
American Airlines
Oct 8
STL8:49 amLambert-St Louis
1h 57m
DFW10:46 amDallas/Fort Worth
Oct 15
DFW7:00 amDallas/Fort Worth
1h 53m
STL8:53 amLambert-St Louis
$139
Find similar
American Airlines
Oct 7
STL8:49 amLambert-St Louis
1h 57m
DFW10:46 amDallas/Fort Worth
Oct 11
DFW6:59 pmDallas/Fort Worth
1h 54m
STL8:53 pmLambert-St Louis
$149
Find similar
American Airlines
Nov 3
STL7:00 amLambert-St Louis
2h 10m
DFW9:10 amDallas/Fort Worth
Nov 5
DFW5:47 pmDallas/Fort Worth
1h 43m
STL7:30 pmLambert-St Louis
$169
Find similar

Spirit Airlines flights from Missouri to United States

Our best Spirit Airlines deals on Missouri to United States flight tickets
Spirit Airlines
Oct 15
MCI2:55 pmKansas City
3h 02m
LAS3:57 pmLas Vegas Harry Reid Intl
Oct 21
LAS9:07 amLas Vegas Harry Reid Intl
2h 53m
MCI2:00 pmKansas City
$129
Find similar
Spirit Airlines
Oct 14
MCI2:55 pmKansas City
3h 02m
LAS3:57 pmLas Vegas Harry Reid Intl
Oct 17
LAS12:35 pmLas Vegas Harry Reid Intl
2h 56m
MCI5:31 pmKansas City
$133
Find similar
Spirit Airlines
Oct 13
MCI10:53 amKansas City
3h 02m
LAS11:55 amLas Vegas Harry Reid Intl
Oct 16
LAS12:35 pmLas Vegas Harry Reid Intl
2h 56m
MCI5:31 pmKansas City
$134
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Missouri to United States 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 September 10, 2025.
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. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Wed 10/15

7:52 pm-9:20 pm

Nonstop2h 28m

Denver Intl

Sun 10/19

6:00 am-9:07 am

Nonstop2h 07m

$88

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Fri 10/24

7:52 pm-9:20 pm

Nonstop2h 28m

Denver Intl

Tue 10/28

6:00 am-9:07 am

Nonstop2h 07m

$89

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 10/2

10:35 am-5:57 pm

1 stop7h 22m

Dallas/Fort Worth

Sun 10/5

8:00 am-9:54 am

Nonstop1h 54m

$119

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 10/9

10:57 am-12:10 am

1 stop13h 13m

Dallas/Fort Worth

Sun 10/12

7:30 am-9:22 am

Nonstop1h 52m

$124

Kansas CityLas Vegas

MCI - LAS

MCILAS

Kansas City

Wed 10/15

2:55 pm-3:57 pm

Nonstop3h 02m

Las Vegas Harry Reid Intl

Tue 10/21

9:07 am-2:00 pm

Nonstop2h 53m

$129

Kansas CityLas Vegas

MCI - LAS

MCILAS

Kansas City

Tue 10/14

2:55 pm-3:57 pm

Nonstop3h 02m

Las Vegas Harry Reid Intl

Fri 10/17

12:35 pm-5:31 pm

Nonstop2h 56m

$133

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Sat 10/4

9:00 am-10:20 am

Nonstop2h 20m

Denver Intl

Tue 10/7

5:40 pm-8:46 pm

Nonstop2h 06m

$133

St. LouisNewark

STL - EWR

STLEWR

Lambert-St Louis

Wed 10/22

6:00 am-9:39 am

Nonstop2h 39m

Newark

Wed 10/29

9:15 am-11:04 am

Nonstop2h 49m

$161

St. LouisNew York

STL - LGA

STLLGA

Lambert-St Louis

Fri 11/7

2:40 pm-11:25 pm

1 stop7h 45m

New York LaGuardia

Tue 11/11

6:30 pm-8:20 pm

Nonstop2h 50m

$208

Kansas CityChicago

MCI - ORD

MCIORD

Kansas City

Wed 10/1

3:15 pm-9:30 pm

1 stop6h 15m

Chicago O'Hare Intl

Fri 10/3

4:20 pm-11:20 pm

1 stop7h 00m

$209

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 the United States from

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

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 $264. 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 $277.

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

According to our data, Tuesday is the cheapest day to fly to United States from Missouri. The lowest ticket price found for a Tuesday departure recently was $346. 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 Sunday because tickets tend to average around $401. 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 at noon when flights can be purchased for as low as $306. Try not to purchase tickets in the afternoon because they tend to be around $404. 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 $331 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 $226 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

$61

Fastest flight time

1h 28m

Direct flights

Every day

Airports in United States

1 airport
The best one-way flight to United States from Missouri in the past 72 hours is $61. The best round-trip flight deal from Missouri to United States found on momondo in the last 72 hours is $78.
The fastest flight from Missouri to United States takes 1h 28m
Direct flights go from Missouri to United States every day.
There is 1 airport near United States: Chicago O'Hare Intl (ORD)
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?

  • 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?

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
FrontierPriceFrom $46Free CancellationRating
5.8
3,181 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $68Free CancellationRating
6.3
8,024 reviews
Search Spirit Airlines flights
Allegiant AirPriceFrom $104Free CancellationRating
7.2
702 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $126Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
DeltaPriceFrom $128Free CancellationRating
7.9
7,963 reviews
Search Delta flights
SouthwestPriceFrom $143Free CancellationRating
8.0
4,249 reviews
Search Southwest flights
American AirlinesPriceFrom $157Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Southern / MokulelePriceFrom $189Free CancellationRating
6.5
27 reviews
Search Southern / Mokulele flights
Alaska AirlinesPriceFrom $256Free CancellationRating
8.0
10,000 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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