$48 Find Cheap Flights from Missouri to the United States

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Good to know

Low season

January

High season

July

Cheapest flight

$48
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from St. Louis to Denver

Flights from Missouri to the United States: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Missouri to the United States 
JustinFlew with FrontierMCI-DENMar 2025
Denver is a decent airport and easy to navigate
valerieFlew with Air CanadaSTL-ORDJan 2025
Usually it is unreliable - always leave lots of time for connection.
LauraFlew with Spirit AirlinesSTL-FLLSep 2024
If you have kids, and are in gate C, take advantage of the kids play area. terminal isn't too large and you can walk to the last gate in minutes.
Verified travelerFlew with DeltaMCI-ATLApr 2024
Enjoy the new airport in Kansas City, very nice
Verified travelerFlew with American AirlinesSTL-ORDMay 2024
The flight from STL to Chicago was good
UzomaFlew with SouthwestMCI-OAKJan 2024
Baggage claim at Oakland always takes a while

FAQs for booking flights from Missouri to the United States

  • How does KAYAK find such low prices on flights from Missouri to the United States?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to the United States.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to the United States?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Missouri to the United States is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Missouri to the United States?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Missouri to the United States with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to the United States?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Missouri to the United States up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in the United States?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in the United States is Orlando Airport (MCO), with an average flight price of $134.

  • What is the cheapest day to fly to the United States?

    Based on KAYAK data, the cheapest day to fly to the United States is Friday where round-trip tickets can be as cheap as $355. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $413 on average.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally in the afternoon, when round-trip flights cost $320 on average. Morning departures are around 12% cheaper than evening flights, on average. The most expensive time of day to fly to the United States is generally in the evening, which is peak travel time and where the average cost of a ticket is $419.

  • What is the cheapest flight to the United States?

    The cheapest ticket to the United States from Missouri found in the last 72 hours was to Denver, at $111 round-trip. The most popular route is Kansas City (MCI) to Atlanta (ATL) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $212.

  • What is the cheapest month to fly from Missouri to the United States?

    The cheapest month for flights from Missouri to the United States is April, when tickets cost $444 (return) on average. On the other hand, the most expensive months are March and November, when the average cost of round-trip tickets is $669 and $619 respectively.

  • How far in advance should I book a flight from Missouri to the United States?

    To get a below average price on the flight from Missouri to the United States, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

  • How long is the flight to the United States?

    An average nonstop flight from Missouri to the United States takes 2h 50m, covering a distance of 1054 miles. The shortest route is St. Louis (STL) to Chicago O'Hare Intl Airport (ORD) with an average flight time of 1h 21m.

  • What are the most popular destinations in the United States?

    Based on KAYAK flight searches, the most popular destination is New York (14% of total searches to the United States). The next most popular destinations are Seattle (12%) and Las Vegas (8%). Searches for flights to Denver (5%), to Chicago (5%) and to Washington, D.C. (5%) are also popular.

See more FAQs

Top airline flying from Missouri to the United States

Need help choosing which airline to fly with from Missouri to the United States? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4280 reviews
7.1Food
8.2Boarding
7.6Entertainment
8.0Comfort
8.6Crew
Airline reviews

Plz don't take away free bags and free seating

10.0 ExcellentAnonymous, Apr 2025DAL - FLL
Read more Southwest reviews

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

1.5 hour delay, poor service, no compassion from the crew. Terrible experience

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Short flight with plenty of open seats. Drinks and snacks were still provided even on such a short flight. <1 hr

Book cheap flights from Missouri to the United States

Recent round-trip flight deals

5/17Sat
nonstopFrontier
2h 33mSTL-DEN
5/21Wed
nonstopFrontier
2h 09mDEN-STL
$98
5/5Mon
nonstopFrontier
3h 46mSTL-LAS
5/9Fri
nonstopFrontier
3h 26mLAS-STL
$110
5/8Thu
1 stopSpirit Airlines
12h 12mMCI-LAS
5/11Sun
1 stopSpirit Airlines
12h 37mLAS-MCI
$119
6/3Tue
nonstopSpirit Airlines
3h 02mMCI-LAS
6/17Tue
nonstopSpirit Airlines
2h 45mLAS-MCI
$122
5/27Tue
nonstop
3h 44mSTL-LAS
5/31Sat
1 stop
9h 51mLAS-STL
$169
5/28Wed
1 stop
5h 50mMCI-LAS
6/4Wed
1 stop
9h 37mLAS-MCI
$174
5/7Wed
nonstopAmerican Airlines
1h 54mSTL-DFW
5/7Wed
1 stopAmerican Airlines
7h 56mDFW-STL
$180
5/14Wed
nonstopSouthwest
2h 40mSTL-MIA
5/20Tue
nonstopSouthwest
2h 55mMIA-STL
$189
6/16Mon
1 stopSouthwest
7h 55mSTL-SEA
7/9Wed
2 stopsSouthwest
10h 55mSEA-STL
$194
5/3Sat
nonstopAmerican Airlines
1h 38mMCI-ORD
5/5Mon
nonstopAmerican Airlines
1h 35mORD-MCI
$198

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Recent one-way flight deals

5/17Sat
nonstopFrontier
2h 33mSTL-DEN
$48
4/27Sun
nonstopFrontier
3h 44mSTL-LAS
$55
6/3Tue
nonstopSpirit Airlines
3h 02mMCI-LAS
$62
6/17Tue
nonstopSpirit Airlines
3h 11mMCI-LAS
$63
6/10Tue
nonstopSouthwest
4h 20mSTL-SEA
$85
5/20Tue
nonstopAmerican Airlines
2h 48mSTL-MIA
$90
5/8Thu
1 stopDelta
7h 42mSTL-SEA
$95
5/2Fri
nonstopAmerican Airlines
1h 38mMCI-ORD
$99
5/17Sat
1 stopDelta
5h 34mSTL-DEN
$99
7/5Sat
1 stopSouthwest
10h 50mSTL-SEA
$100

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Last minute flights from Missouri to the United States

Last minute flight, train and bus deals

4/22Tue
multi-stopFrontier
23h 26mSTL-DFW
4/29Tue
multi-stopFrontier
28h 01mDFW-STL
$181
4/22Tue
multi-stopFrontier
31h 08mSTL-LAS
4/25Fri
multi-stopFrontier
7h 02mLAS-STL
$188
4/20Sun
multi-stop
11h 33mSTL-DFW
4/27Sun
multi-stop
9h 58mDFW-STL
$233
4/20Sun
multi-stop
11h 33mSTL-DFW
4/27Sun
multi-stop
11h 55mDFW-STL
$234
4/22Tue
nonstopDelta
2h 22mSTL-LGA
4/22Tue
nonstopDelta
2h 52mLGA-STL
$275
4/22Tue
nonstopUnited Airlines
2h 38mSTL-EWR
4/26Sat
nonstopUnited Airlines
2h 56mEWR-STL
$275
4/22Tue
nonstopUnited Airlines
2h 38mSTL-EWR
4/23Wed
multi-stopUnited Airlines
7h 42mEWR-STL
$281
4/22Tue
nonstopSouthwest
2h 25mSTL-LGA
4/26Sat
multi-stopSouthwest
8h 40mLGA-STL
$290
4/22Tue
nonstopDelta
2h 22mSTL-LGA
4/27Sun
nonstopDelta
2h 45mLGA-STL
$308
4/22Tue
multi-stopSouthwest
4h 30mSTL-LGA
4/26Sat
multi-stopSouthwest
8h 40mLGA-STL
$324

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Everything you need to know for your flight to the United States

Cabin class types available on flights to Missouri

Cabin classes available on flights to Missouri. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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