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Cheap flights from Missouri to the United States from $44

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 9/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Missouri to the United States

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:32 pm - 9:34 pmMCI  Kansas City-DEN Denver Intl
2h 02mnonstop
Frontier Logo
4:56 pm - 7:37 pmDEN  Denver Intl-MCI Kansas City
1h 41mnonstop
$93Frontier
Wed, Sep 9 - Fri, Sep 11
Frontier Logo
8:32 pm - 9:34 pmMCI  Kansas City-DEN Denver Intl
2h 02mnonstop
Frontier Logo
4:56 pm - 7:37 pmDEN  Denver Intl-MCI Kansas City
1h 41mnonstop
$94Frontier
Wed, Sep 9 - Fri, Sep 11
United Airlines Logo
5:24 pm - 6:25 pmMCI  Kansas City-DEN Denver Intl
2h 01mnonstop
United Airlines Logo
5:55 pm - 8:44 pmDEN  Denver Intl-MCI Kansas City
1h 49mnonstop
$146United Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
5:13 pm - 6:15 pmMCI  Kansas City-DEN Denver Intl
2h 02mnonstop
United Airlines Logo
1:26 pm - 4:11 pmDEN  Denver Intl-MCI Kansas City
1h 45mnonstop
$146United Airlines
Tue, Sep 8 - Tue, Sep 15
Southwest Logo
4:55 pm - 5:45 pmMCI  Kansas City-DEN Denver Intl
1h 50mnonstop
Southwest Logo
8:25 pm - 11:10 pmDEN  Denver Intl-MCI Kansas City
1h 45mnonstop
$155Southwest
Fri, Sep 11 - Mon, Sep 14
Southwest Logo
4:30 pm - 5:20 pmMCI  Kansas City-DEN Denver Intl
1h 50mnonstop
Southwest Logo
8:25 pm - 11:10 pmDEN  Denver Intl-MCI Kansas City
1h 45mnonstop
$155Southwest
Wed, Sep 9 - Fri, Sep 11
JetBlue Logo
6:20 am - 12:08 pmMCI  Kansas City-DEN Denver Intl
6h 48m1 stop Minneapolis St Paul
JetBlue Logo
5:45 pm - 11:00 pmDEN  Denver Intl-MCI Kansas City
4h 15m1 stop Minneapolis St Paul
$162JetBlue
Sat, Sep 12 - Mon, Sep 14
JetBlue Logo
2:59 pm - 7:34 pmMCI  Kansas City-DEN Denver Intl
5h 35m1 stop Salt Lake City
JetBlue Logo
7:56 am - 2:04 pmDEN  Denver Intl-MCI Kansas City
5h 08m1 stop Salt Lake City
$162JetBlue
Wed, Oct 7 - Sat, Oct 10
American Airlines Logo
8:48 am - 10:52 amSTL  Lambert-St Louis-DFW Dallas/Fort Worth
2h 04mnonstop
American Airlines Logo
12:43 pm - 2:30 pmDFW  Dallas/Fort Worth-STL Lambert-St Louis
1h 47mnonstop
$177American Airlines
Tue, Oct 13 - Sat, Oct 17
American Airlines Logo
7:00 am - 9:00 amSTL  Lambert-St Louis-DFW Dallas/Fort Worth
2h 00mnonstop
American Airlines Logo
8:13 pm - 9:59 pmDFW  Dallas/Fort Worth-STL Lambert-St Louis
1h 46mnonstop
$177American Airlines
Thu, Oct 1 - Mon, Oct 5

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Frontier flights from Missouri to United States

Our best Frontier deals on Missouri to United States flight tickets
Frontier
Sep 9
MCI8:32 pmKansas City
2h 02m
DEN9:34 pmDenver Intl
Sep 11
DEN4:56 pmDenver Intl
1h 41m
MCI7:37 pmKansas City
$93
Frontier
Sep 9
MCI8:32 pmKansas City
2h 02m
DEN9:34 pmDenver Intl
Sep 11
DEN4:56 pmDenver Intl
1h 41m
MCI7:37 pmKansas City
$94
Frontier
Sep 28
MCI8:32 pmKansas City
2h 02m
DEN9:34 pmDenver Intl
Oct 5
DEN4:56 pmDenver Intl
1h 41m
MCI7:37 pmKansas City
$95

United Airlines flights from Missouri to United States

Our best United Airlines deals on Missouri to United States flight tickets
United Airlines
Sep 5
STL4:50 pmLambert-St Louis
2h 40m
EWR8:30 pmNewark
Sep 8
EWR9:50 amNewark
2h 37m
STL11:27 amLambert-St Louis
$233
United Airlines
Aug 31
STL4:50 pmLambert-St Louis
2h 40m
EWR8:30 pmNewark
Sep 2
EWR2:18 pmNewark
2h 48m
STL4:06 pmLambert-St Louis
$242
United Airlines
Aug 31
STL7:00 amLambert-St Louis
2h 31m
EWR10:31 amNewark
Sep 2
EWR11:15 amNewark
5h 23m
1 stop
STL3:38 pmLambert-St Louis
$252

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 August 16, 2026.
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

Cheapest round-trip

Kansas CityDenver

MCI Kansas City - DEN Denver Intl

MCIDEN

Kansas City

Wed 9/9

8:32 pm-9:34 pm

Nonstop2h 02m

Denver Intl

Fri 9/11

4:56 pm-7:37 pm

Nonstop1h 41m

$93

Kansas CityDenver

MCI Kansas City - DEN Denver Intl

MCIDEN

Kansas City

Wed 9/9

8:32 pm-9:34 pm

Nonstop2h 02m

Denver Intl

Fri 9/11

4:56 pm-7:37 pm

Nonstop1h 41m

$94

Kansas CityDenver

MCI Kansas City - DEN Denver Intl

MCIDEN

Kansas City

Thu 10/15

5:24 pm-6:25 pm

Nonstop2h 01m

Denver Intl

Mon 10/19

5:55 pm-8:44 pm

Nonstop1h 49m

$146

Kansas CityDenver

MCI Kansas City - DEN Denver Intl

MCIDEN

Kansas City

Tue 9/8

5:13 pm-6:15 pm

Nonstop2h 02m

Denver Intl

Tue 9/15

1:26 pm-4:11 pm

Nonstop1h 45m

$146
Quickest round-trip

Kansas CityDenver

MCI Kansas City - DEN Denver Intl

MCIDEN

Kansas City

Fri 9/11

4:55 pm-5:45 pm

Nonstop1h 50m

Denver Intl

Mon 9/14

8:25 pm-11:10 pm

Nonstop1h 45m

$155

Kansas CityDenver

MCI Kansas City - DEN Denver Intl

MCIDEN

Kansas City

Wed 9/9

4:30 pm-5:20 pm

Nonstop1h 50m

Denver Intl

Fri 9/11

8:25 pm-11:10 pm

Nonstop1h 45m

$155

Kansas CityDenver

MCI Kansas City - DEN Denver Intl

MCIDEN

Kansas City

Sat 9/12

6:20 am-12:08 pm

1 stop6h 48m

Denver Intl

Mon 9/14

5:45 pm-11:00 pm

1 stop4h 15m

$162

Kansas CityDenver

MCI Kansas City - DEN Denver Intl

MCIDEN

Kansas City

Wed 10/7

2:59 pm-7:34 pm

1 stop5h 35m

Denver Intl

Sat 10/10

7:56 am-2:04 pm

1 stop5h 08m

$162

St. LouisDallas

STL Lambert-St Louis - DFW Dallas/Fort Worth

STLDFW

Lambert-St Louis

Tue 10/13

8:48 am-10:52 am

Nonstop2h 04m

Dallas/Fort Worth

Sat 10/17

12:43 pm-2:30 pm

Nonstop1h 47m

$177

St. LouisDallas

STL Lambert-St Louis - DFW Dallas/Fort Worth

STLDFW

Lambert-St Louis

Thu 10/1

7:00 am-9:00 am

Nonstop2h 00m

Dallas/Fort Worth

Mon 10/5

8:13 pm-9:59 pm

Nonstop1h 46m

$177

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, October 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 $346. If you aren’t able to travel during the month of October, then book flights to United States from Missouri during January instead. Flights to United States in January, while not as cheap as those in October, still average around $349.

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

According to our data, Wednesday is the cheapest day to fly to United States from Missouri. The lowest ticket price found for a Wednesday departure recently was $380. 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 $483. 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 $378. Try not to purchase tickets in the afternoon because they tend to be around $480. 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 Atlanta Hartsfield-Jackson for the best Missouri - United States flight prices

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

$55

Fastest flight time

1h 00m

Direct flights

Every day

Airports in United States

4,301 airports
The best one-way flight to United States from Missouri in the past 72 hours is $55. The best round-trip flight deal from Missouri to United States found on momondo in the last 72 hours is $109.
The fastest flight from Missouri to United States takes 1h 00m
Direct flights go from Missouri to United States every day.
There are 4,301 airports in United States. From Missouri there are direct flights to Dallas/Fort Worth (DFW), Denver Intl (DEN).
Search flight deals

Frequently asked questions about flying from Missouri to the United States

  • 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 $48Free CancellationRating
5.6
2,690 reviews
Search Frontier flights
JetBluePriceFrom $106Free CancellationRating
7.1
3,038 reviews
Search JetBlue flights
DeltaPriceFrom $108Free CancellationRating
7.8
8,508 reviews
Search Delta flights
Allegiant AirPriceFrom $142Free CancellationRating
7.3
677 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $150Free CancellationRating
7.4
10,110 reviews
Search United Airlines flights
SouthwestPriceFrom $157Free CancellationRating
8.0
4,219 reviews
Search Southwest flights
American AirlinesPriceFrom $182Free CancellationRating
7.1
11,941 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $248Free CancellationRating
7.9
12,811 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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