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Not ready to book? to track prices.Cheap First Class Flight Deals to St. Louis
Recent first class round-trip flight deals to St. Louis
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Quickest first class round-trip flight deals to St. Louis
Quickest first class one-way flight deals to St. Louis
Best first class round-trip flight deals to St. Louis
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First Class Flights to St. Louis - Travel Insights & Trends
Get data-powered insights and trends for First Class flights to St. Louis to help you craft the best travel plan
What cabin class options are available on United States to Lambert-St Louis flights?
There are 4 cabin classes available to choose from on United States to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies First Class from United States to St. Louis?
United Airlines, American Airlines, and Delta are popular carriers operating the cheapest First Class flights from United States to St. Louis
What is the cheapest day to depart on your First Class flight to St. Louis?
The cheapest day to depart from United States to St. Louis is on a Monday when prices can be found for as low as $1,015. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average First Class ticket price to St. Louis on a Sunday is $1,591.
How long does it take to fly to St. Louis?
Flight times from United States to St. Louis vary, but if you’re flying out of Miami and flying into St. Louis (one of the most popular routes), then the duration is 2h 49m on average. Another popular route from United States to St. Louis is flying from Boston to St. Louis, which will take roughly 2h 50m. Keep in mind that layovers or delays could extend your travel time.
How many flights depart from United States to St. Louis on average per day?
58 flights are operational daily from United States to St. Louis as of April 2025. The most popular departure time for this route is 5:00PM, with 36% of flights per day taking off in the afternoon.
How many flights depart from United States to St. Louis on average per week?
412 flights are operational weekly from United States to St. Louis as of April 2025. The most popular departure day for this route is Tue, with 22% of flights per week taking off on this day.
What is the cheapest First Class flight I can find to St. Louis?
On average, round trip First Class flights to St. Louis cost $773/pp. Prices depend on where you are departing from. For prices as low as $519/pp, depart from Washington, D.C.. The most expensive round trip First Class flights to St. Louis are from Seattle.
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What airlines fly First Class to St. Louis?
United Airlines is the most popular airline offering First Class flights to St. Louis, with 49% of our users opting to fly with them when traveling to St. Louis. Other popular options include American Airlines and Alaska Airlines. There are a total of 3 different airlines flying to St. Louis.
Popular Airlines for First Class Flights to St. Louis
Book reliable First Class tickets to St. Louis from top-rated airlines
How much does a first class flight to St. Louis cost?
Generally, first class flights to St. Louis start at $650, depending on departure dates and origin. The cheapest first class ticket for a flight to St. Louis found most recently is $394, which departed from United States on Dec 15.
Which airlines have first class flights to St. Louis?
Choose Delta, United Airlines, American Airlines, Alaska Airlines, Hawaiian Airlines if you are planning to fly first class to St. Louis. Depending on the airline, some additional premium perks may be available to travelers.
What is the cheapest business class flight to St. Louis?
Travelers who want to upgrade from Economy but find first class tickets too expensive can try flying business class. business class flight tickets to St. Louis usually cost $935 per person, which is still a hefty 43% savings for comfortable seats and some premium services (compared to first class seats for this destination).
Which cabin class is available for American Airlines flights to St. Louis?
American Airlines, the most popular airline for flights to St. Louis, has a cabin alternative to Economy seats: first class. For flyers that want more travel options, try looking at another airline or departing origin.
About First Class Flights to St. Louis
Helpful overview information on St. Louis First Class ticket prices, flight duration, and airlines
Frequently asked questions about St. Louis First Class flights
Is it worth flying First Class to St. Louis?
Many flyers choose booking First Class tickets to St. Louis because of the many premium services/perks they may come with, such as extra legroom, lounge access, in-flight dining, entertainment, and more. Different airlines will have their own unique offerings for this premium cabin, so you may have to check with airlines’ websites just to be sure. In the meantime, momondo can help you find cheap deals for First Class flights available on the web.
How long does it take to fly to St. Louis?
While the flight duration may vary for First Class travelers depending on the departure and arrival airports, here are some average flight times from popular locations you might be interested in:
New York LaGuardia Airport to St. Louis: 2 hours 39 minutes
Washington, D.C. Reagan-National Airport to St. Louis: 2 hours 15 minutes
Denver to St. Louis: 2 hours 19 minutes
Orlando Airport to St. Louis: 2 hours 37 minutes
Minneapolis to St. Louis: 1 hour 32 minutes
Atlanta to St. Louis: 1 hour 53 minutes
Des Moines to St. Louis: 1 hour 9 minutes
Why should I use momondo to find a First Class flight deal to St. Louis?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on First Class flights to St. Louis. Millions of users trust and use momondo every year so you are in good company.
Can I find First Class flights to St. Louis with flexible booking policies on momondo?
First Class flights to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find deals for First Class flight tickets to St. Louis?
Once you have performed a search for First Class flight tickets to St. Louis, momondo helps you find the right flight 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 First Class flight to St. Louis right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of St. Louis First Class flights. All you need is a valid email address and we will do the rest; it is that quick and easy.
When did momondo last update prices for flights from United States to Lambert-St Louis Airport?
Prices for flights from United States to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from United States to Lambert-St Louis Airport?
As of April 2025, there are 8 operators available to choose from for flights from United States to Lambert-St Louis Airport.
How old do you have to be to fly from United States to Lambert-St Louis Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The necessary travel and health documents for your Lambert-St Louis Airport 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.