$54 Find Cheap Flights from Missouri to the United States

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Useful Info
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Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$54
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from St. Louis to Newark Liberty Airport

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 
Learn how KAYAK collects reviews and tips from users.
JeffreyFlew with Alaska AirlinesSTL-SEAJun 2025
Don’t get to the airport too early. Security is fast and lines are typically short!
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.

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 Fort Lauderdale Airport (FLL), with an average flight price of $135.

  • 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 Thursday where round-trip tickets can be as cheap as $344. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $405 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 $307 on average. Morning departures are around 11% 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 $405.

  • 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 Los Angeles, at $100 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 $187.

  • 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 June, when tickets cost $409 (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 $668 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 9 weeks before departure.

  • How long is the flight to the United States?

    An average nonstop flight from Missouri to the United States takes 2h 51m, covering a distance of 1085 miles. The shortest route is St. Louis (STL) to Chicago O'Hare Intl Airport (ORD) with an average flight time of 1h 16m.

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

    Based on KAYAK flight searches, the most popular destination is New York (16% of total searches to the United States). The next most popular destinations are Seattle (8%) and Chicago (6%). Searches for flights to Houston (6%), to Washington, D.C. (6%) and to Las Vegas (5%) are also popular.

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 4287 reviews
8.2Boarding
8.0Comfort
7.6Entertainment
7.1Food
8.6Crew
Airline reviews

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

6.0 GoodDavid, Jun 2025BWI - COS
Read more Southwest reviews

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

Book cheap flights from Missouri to the United States

Recent round-trip flight deals

8/4Mon
nonstopAmerican Airlines
1h 41mMCI-ORD
8/7Thu
nonstopAmerican Airlines
1h 43mORD-MCI
$109
9/12Fri
1 stopSpirit Airlines
5h 46mSTL-LGA
9/20Sat
1 stopSpirit Airlines
11h 22mLGA-STL
$113
10/23Thu
nonstopFrontier
2h 28mSTL-DEN
10/29Wed
nonstopFrontier
2h 07mDEN-STL
$116
9/11Thu
nonstopFrontier
2h 28mSTL-DEN
9/15Mon
nonstopFrontier
2h 07mDEN-STL
$117
9/10Wed
1 stopSouthwest
4h 40mMCI-ORD
9/16Tue
1 stopSouthwest
7h 25mORD-MCI
$129
9/10Wed
1 stopSouthwest
4h 40mMCI-ORD
9/16Tue
2 stopsSouthwest
6h 40mORD-MCI
$134
9/10Wed
nonstopUnited Airlines
1h 43mMCI-ORD
9/24Wed
nonstopUnited Airlines
1h 35mORD-MCI
$169
9/10Wed
1 stopDelta
6h 10mMCI-ORD
9/24Wed
1 stopDelta
5h 33mORD-MCI
$177
8/30Sat
1 stopUnited Airlines
7h 10mSTL-SEA
9/9Tue
1 stopUnited Airlines
6h 44mSEA-STL
$180
8/18Mon
1 stopDelta
6h 55mSTL-SEA
9/8Mon
1 stopDelta
6h 41mSEA-STL
$189

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Recent one-way flight deals

9/12Fri
1 stopSpirit Airlines
9h 01mSTL-EWR
$54
9/12Fri
1 stopSpirit Airlines
5h 46mSTL-LGA
$55
8/5Tue
nonstopUnited Airlines
1h 44mMCI-ORD
$55
8/25Mon
nonstopAmerican Airlines
1h 43mMCI-ORD
$56
8/25Mon
1 stopSouthwest
7h 45mMCI-ORD
$65
8/13Wed
nonstopAlaska Airlines
3h 58mMCI-SEA
$65
8/4Mon
2 stopsSouthwest
9h 25mMCI-ORD
$70
8/5Tue
nonstopUnited Airlines
2h 37mSTL-DEN
$79
9/15Mon
nonstopAmerican Airlines
1h 38mMCI-ORD
$85
7/28Mon
nonstopAlaska Airlines
4h 28mSTL-SEA
$125

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Last minute flights from Missouri to the United States

Last minute flight, train and bus deals

6/16Mon
nonstopFrontier
2h 27mSTL-DEN
6/25Wed
nonstopFrontier
2h 12mDEN-STL
$204
6/13Fri
nonstopFrontier
2h 27mSTL-DEN
6/16Mon
nonstopFrontier
2h 12mDEN-STL
$215
6/17Tue
multi-stopSpirit Airlines
8h 58mMCI-EWR
7/11Fri
multi-stopSpirit Airlines
7h 57mEWR-MCI
$236
6/17Tue
multi-stopSpirit Airlines
8h 58mMCI-EWR
6/25Wed
multi-stopSpirit Airlines
8h 02mEWR-MCI
$282
6/17Tue
multi-stop
8h 58mMCI-EWR
6/20Fri
multi-stop
33h 32mEWR-MCI
$287
6/14Sat
multi-stop
8h 52mSTL-EWR
6/26Thu
multi-stop
7h 04mEWR-STL
$289
6/16Mon
nonstopSouthwest
2h 25mSTL-LGA
6/17Tue
nonstopSouthwest
2h 35mLGA-STL
$291
6/14Sat
nonstopDelta
2h 31mSTL-LGA
6/18Wed
nonstopDelta
2h 39mLGA-STL
$295
6/16Mon
nonstopSouthwest
2h 25mSTL-LGA
6/18Wed
nonstopSouthwest
2h 35mLGA-STL
$304
6/14Sat
multi-stopDelta
4h 43mSTL-LGA
6/17Tue
nonstopDelta
2h 48mLGA-STL
$305

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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.
First Class flights to the United Statesfrom $343
Business Class flights to the United Statesfrom $380
Prem Econ Class flights to the United Statesfrom $176
Economy Class flights to the United Statesfrom $72

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