How much does a first class flight to St. Louis cost?

Generally, first class flights to St. Louis start at $559, depending on departure dates and origin. The cheapest first class ticket for a flight to St. Louis found most recently is $242, which departed from United States on Mar 28. Check prices

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 $645 per person, which is still a hefty 15% savings for comfortable seats and some premium services (compared to first class seats for this destination). Compare flight prices

Which cabin class is available for Southwest flights to St. Louis?

Southwest, 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. Search all airlines

Which airlines have first class flights to St. Louis?

Choose United Airlines, Delta, American Airlines, Alaska Airlines, Spirit 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. Search all airlines

First Class Flights to St. Louis | $144

1 adult

0 bags

First Class ticket deals available from 900+ travel sites.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Cheap First Class Flight Deals to St. Louis

Round-trip

One-way

Quickest round-trip

Quickest one-way

Best round-trip

Best one-way

Recent first class round-trip flight deals to St. Louis

Enter your travel dates to find the best prices.

12:39 pm - 2:24 pm

LGA

STL

2h 45mnonstop

6:00 am - 9:29 am

STL

LGA

2h 29mnonstop

$492American Airlines

Tue, Aug 18 - Wed, Aug 19

7:00 am - 8:53 am

LGA

STL

2h 53mnonstop

6:00 am - 9:35 am

STL

LGA

2h 35mnonstop

$493American Airlines

Wed, Jul 1 - Wed, Jul 22

9:25 pm - 11:09 pm

LGA

STL

2h 44mnonstop

3:03 pm - 6:29 pm

STL

LGA

2h 26mnonstop

$511American Airlines

Sat, Oct 17 - Sat, Oct 24

12:39 pm - 2:24 pm

LGA

STL

2h 45mnonstop

10:44 am - 6:59 pm

STL

LGA

7h 15m

1 stop

$515American Airlines

Tue, Aug 18 - Wed, Aug 19

1:00 pm - 6:01 pm

IAD

STL

6h 01m

1 stop

6:59 pm - 12:05 am

STL

IAD

4h 06m

1 stop

$559Delta

Sat, Nov 7 - Tue, Nov 10

3:39 pm - 9:26 pm

IAD

STL

6h 47m

1 stop

8:43 am - 11:55 am

STL

IAD

2h 12mnonstop

$567United Airlines

Wed, Jul 29 - Tue, Aug 4

10:43 am - 4:15 pm

IAD

STL

6h 32m

1 stop

6:04 pm - 10:56 pm

STL

IAD

3h 52m

1 stop

$570Delta

Sun, May 24 - Sat, May 30

6:00 am - 11:09 am

IAD

STL

6h 09m

1 stop

8:25 am - 11:31 am

STL

IAD

2h 06mnonstop

$584United Airlines

Sat, Nov 7 - Tue, Nov 10

6:16 pm - 11:56 pm

LAX

STL

3h 40mnonstop

6:37 am - 8:46 am

STL

LAX

4h 09mnonstop

$1,333Alaska Airlines

Wed, Jun 24 - Tue, Jul 7

6:13 pm - 11:59 pm

LAX

STL

3h 46mnonstop

6:37 am - 8:46 am

STL

LAX

4h 09mnonstop

$1,356Alaska Airlines

Thu, Jul 9 - Tue, Jul 14

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

Can stopping save me money on United States to St. Louis flights?

No. A direct flight is the cheapest option for a flight between United States to St. Louis.

What is the cheapest airline that flies First Class from United States to St. Louis?

Delta, United Airlines, and American Airlines are popular carriers operating the cheapest First Class flights from United States to St. Louis

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 Boston and flying into St. Louis (one of the most popular routes), then the duration is 2h 45m on average. Another popular route from United States to St. Louis is flying from New York to St. Louis, which will take roughly 2h 45m. 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?

61 flights are operational daily from United States to St. Louis as of May 2026. The most popular departure time for this route is 3:00PM, with 38% of flights per day taking off in the afternoon.

How many flights depart from United States to St. Louis on average per week?

431 flights are operational weekly from United States to St. Louis as of May 2026. The most popular departure day for this route is Mon, with 18% 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 $766/pp. Prices depend on where you are departing from. For prices as low as $550/pp, depart from New York. The most expensive round trip First Class flights to St. Louis are from Portland.

See prices from:

What airlines fly First Class to St. Louis?

United Airlines is the most popular airline offering First Class flights to St. Louis, with 38% of our users opting to fly with them when traveling to St. Louis. Other popular options include American Airlines and Delta. There are a total of 4 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

Airline	Rating	First Class	Price
American Airlines	PriceFrom $144	First Class	Rating 7.1 See reviews	7.5 Boarding 7.2 Comfort 7.9 Crew 6.9 Entertainment 6.4 Food Reviews 1 / 10 The staff were excellent, very friendly and helpful	Search American Airlines flights

How much does a first class flight to St. Louis cost?
Generally, first class flights to St. Louis start at $559, depending on departure dates and origin. The cheapest first class ticket for a flight to St. Louis found most recently is $242, which departed from United States on Mar 28.
Which airlines have first class flights to St. Louis?
Choose United Airlines, Delta, American Airlines, Alaska Airlines, Spirit 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 $645 per person, which is still a hefty 15% savings for comfortable seats and some premium services (compared to first class seats for this destination).
Which cabin class is available for Southwest flights to St. Louis?
Southwest, 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

Fastest flight time	1h 22m
Closest Airport	Jonesboro
Most Popular Airline	American Airlines

The quickest First Class flight you can catch to St. Louis takes 1h 22m, which departs from Chicago O'Hare Intl to Lambert-St Louis.

The nearest airport for all arrivals to St. Louis is Jonesboro. First Class flyers can expect to travel 202.2 mi to get to downtown.

The most popular airline for First Class flights to St. Louis found on momondo this week is American Airlines, with a user rating of 7.1/10. There is one airline in total servicing this route with First Class options.

Search flight deals

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 36 minutes
Atlanta to St. Louis: 1 hour 56 minutes
Denver to St. Louis: 2 hours 23 minutes
Boston to St. Louis: 2 hours 49 minutes
Washington, D.C. Reagan-National Airport to St. Louis: 2 hours 16 minutes
Minneapolis to St. Louis: 1 hour 36 minutes
Orlando Airport to St. Louis: 2 hours 36 minutes
Seattle to St. Louis: 4 hours 15 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 May 2026, there are 9 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.