What is the cheapest airline that flies from Las Vegas Harry Reid Intl to Lambert-St Louis?

Frontier, Spirit Airlines, and American Airlines are the most popular carriers operating from Las Vegas Harry Reid Intl to Lambert-St Louis

Which layover airport has the shortest connection time from Las Vegas to St. Louis?

Denver (DEN) has the shortest average layover time for this route: 1h 05m.

How many flights depart from Las Vegas to St. Louis on average per day?

6 flights are operational daily from Las Vegas to St. Louis as of September 2025. The most popular departure time for this route is 8:00AM, with 65% of flights per day taking off at noon.

Which layover airport has the shortest travel time from Las Vegas to St. Louis?

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 5h 11m.

Which layover airport offers the lowest fares from Las Vegas to St. Louis?

Flights via Denver (DEN) offer the lowest average round-trip price of $296.

Which airport is the most popular layover for flights between Las Vegas and St. Louis?

Denver (DEN) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

How many flights depart from Las Vegas to St. Louis on average per week?

45 flights are operational weekly from Las Vegas to St. Louis as of September 2025. The most popular departure day for this route is Mon, with 24% of flights per week taking off on this day.

What airlines fly to St. Louis?

Frontier, Southwest and American Airlines are the top three most popular airlines that fly to St. Louis from Las Vegas according to our data. Frontier is the first choice among our users, with 74% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

Which airlines fly direct from Las Vegas to St Louis?

A majority of airlines in the US offer one-way flights from Las Vegas to St Louis, so it is up to you to choose which one you prefer based on price and onboard amenities. Out of these airlines, Frontier and Spirit offer the most direct flights with at least two per day while American Airlines and Sun County Air have a few cheap flights from Las Vegas to St Louis every week. Both Frontier and Spirit don’t have too much to offer in terms of amenities but the prices are quite budget-friendly which makes up for it. Sun County Air on the other hand offers premium snacks to passengers who also get a personal entertainment device as well as a charging port.

What are the benefits of the different airports in Las Vegas and St Louis?

St. Louis Lambert International Airport is the biggest and busiest airport in St Louis by all metrics including the number of passengers that have passed through as well as the number of aircraft. This means that any time your flights from Las Vegas to St Louis land, you are most likely to be held up for quite a long time as the queues are processed. This one thing is what makes Columbia Regional Airport a better landing airport despite the fact that it is a good 1h from St Louis. Since there is less traffic, queues are shorter and even getting transport from the airport into the city center isn’t that difficult since there aren’t too many people. However, it is worth pointing out that St. Louis Lambert International Airport, being the bigger airport, has its benefits. For example, the amenities are newer and better. There are quite a number of places from where you can do your shopping as well as some top-quality eateries serving everything from coffee to burgers, pizza, and even classic American steak. This means that as soon as you’ve landed from your Las Vegas to St Louis flights, you’ll have plenty of options to grab a bite.

What is the best way to get in and out of airports in Las Vegas and St Louis?

To get to McCarran International Airport from Downtown Las Vegas in time for your flights from Las Vegas to St Louis, you should consider taking a taxi or Uber. It is the fastest way possible with an expected travel time of just under 20min via the I-15 S barring any delays with traffic. This is also extremely convenient especially if you have a lot of luggage with you since they can pick you up at any point of your choosing and will drop you just outside the departure terminal in McCarran International Airport. After landing in St Louis, you could choose to take the airport shuttle which will drop you off in the heart of St Louis at any destination. The Metro is another option worth considering as it is available at all times and goes direct from Terminal 2 of Lambert Airport towards Red Line to Shiloh Scott and then dropping you at the Civic Center which is right in the heart of St Louis. Which cities can you get to from St Louis Lambert Airport? St Louis Lambert International airport is quite conveniently located east of Missouri just outside Illinois which means that you can even cross state borders once your flights from Las Vegas to St Louis has landed. From this convenient location, you can easily get to a number of cities such as Chesterfield which is only half an hour to the west, Ballwin and St Charles which are towards the northwest, and Kirkwood to the south. On the other side of the border towards Illinois, you can easily get to Belleville, Glen Carbon, and Collinsville via the I-70.

When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?

Prices for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport were last updated today.

How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?

As of September 2025, there are 5 operators available to choose from for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport.

How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?

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 Las Vegas Harry Reid Intl Airport 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.

$72 Cheap Flights from Las Vegas to St. Louis in 2025/26

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One-way

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Direct

Cheap round-trip flights

2:47 pm - 8:12 pmLAS-STL

3h 25mnonstop

7:45 pm - 11:29 pmSTL-LAS

5h 44m1 stop

$99Frontier

Find Deal

Fri, Nov 7 - Sat, Nov 8

8:32 am - 1:57 pmLAS-STL

3h 25mnonstop

11:07 am - 9:28 pmSTL-LAS

12h 21m1 stop

$112Frontier

Find Deal

Thu, Oct 30 - Thu, Nov 6

7:00 am - 7:26 pmLAS-STL

10h 26m1 stop

9:59 pm - 11:37 pmSTL-LAS

3h 38mnonstop

$120Frontier

Find Deal

Mon, Oct 13 - Mon, Oct 20

12:59 am - 9:07 amLAS-STL

6h 08m1 stop

4:51 pm - 6:30 pmSTL-LAS

3h 39mnonstop

$137Frontier

Find Deal

Mon, Oct 20 - Sat, Oct 25

12:59 am - 9:06 amLAS-STL

6h 07m1 stop

7:55 pm - 8:21 pmSTL-LAS

26h 26m1 stop

$141Frontier

Find Deal

Tue, Sep 30 - Sun, Oct 5

8:49 pm - 9:22 amLAS-STL

10h 33m1 stop

7:52 pm - 11:29 pmSTL-LAS

5h 37m1 stop

$143Frontier

Find Deal

Wed, Oct 8 - Tue, Oct 21

12:59 am - 9:07 amLAS-STL

6h 08m1 stop

7:52 pm - 11:29 pmSTL-LAS

5h 37m1 stop

$144Frontier

Find Deal

Mon, Oct 20 - Sat, Oct 25

12:59 am - 9:06 amLAS-STL

6h 07m1 stop

4:00 pm - 9:23 pmSTL-LAS

7h 23m1 stop

$150Frontier

Find Deal

Thu, Oct 2 - Sun, Oct 5

12:59 am - 9:06 amLAS-STL

6h 07m1 stop

4:00 pm - 9:23 pmSTL-LAS

7h 23m1 stop

$151Frontier

Find Deal

Tue, Sep 30 - Sun, Oct 5

12:59 am - 9:23 amLAS-STL

6h 24m1 stop

6:00 pm - 9:59 pmSTL-LAS

5h 59m1 stop

$167United Airlines

Find Deal

Wed, Feb 18 - Mon, Feb 23

Frontier flights from Las Vegas to St. Louis

Our best Frontier deals on Las Vegas to St. Louis flight tickets

Frontier

Nov 7

LAS2:47 pmLas Vegas Harry Reid Intl

3h 25m

STL8:12 pmLambert-St Louis

Nov 8

STL7:45 pmLambert-St Louis

5h 44m

1 stop

LAS11:29 pmLas Vegas Harry Reid Intl

$99

Find similar

Frontier

Oct 30

LAS8:32 amLas Vegas Harry Reid Intl

3h 25m

STL1:57 pmLambert-St Louis

Nov 6

STL11:07 amLambert-St Louis

12h 21m

1 stop

LAS9:28 pmLas Vegas Harry Reid Intl

$112

Find similar

Frontier

Oct 13

LAS7:00 amLas Vegas Harry Reid Intl

10h 26m

1 stop

STL7:26 pmLambert-St Louis

Oct 20

STL9:59 pmLambert-St Louis

3h 38m

LAS11:37 pmLas Vegas Harry Reid Intl

$120

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Fri 11/7

2:47 pm-8:12 pm

Nonstop3h 25m

Lambert-St Louis

Sat 11/8

7:45 pm-11:29 pm

1 stop5h 44m

$99

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 10/30

8:32 am-1:57 pm

Nonstop3h 25m

Lambert-St Louis

Thu 11/6

11:07 am-9:28 pm

1 stop12h 21m

$112

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Mon 10/13

7:00 am-7:26 pm

1 stop10h 26m

Lambert-St Louis

Mon 10/20

9:59 pm-11:37 pm

Nonstop3h 38m

$120

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Mon 10/20

12:59 am-9:07 am

1 stop6h 08m

Lambert-St Louis

Sat 10/25

4:51 pm-6:30 pm

Nonstop3h 39m

$137

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Tue 9/30

12:59 am-9:06 am

1 stop6h 07m

Lambert-St Louis

Sun 10/5

7:55 pm-8:21 pm

1 stop26h 26m

$141

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 10/8

8:49 pm-9:22 am

1 stop10h 33m

Lambert-St Louis

Tue 10/21

7:52 pm-11:29 pm

1 stop5h 37m

$143

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Mon 10/20

12:59 am-9:07 am

1 stop6h 08m

Lambert-St Louis

Sat 10/25

7:52 pm-11:29 pm

1 stop5h 37m

$144

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Thu 10/2

12:59 am-9:06 am

1 stop6h 07m

Lambert-St Louis

Sun 10/5

4:00 pm-9:23 pm

1 stop7h 23m

$150

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Tue 9/30

12:59 am-9:06 am

1 stop6h 07m

Lambert-St Louis

Sun 10/5

4:00 pm-9:23 pm

1 stop7h 23m

$151

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Wed 2/18

12:59 am-9:23 am

1 stop6h 24m

Lambert-St Louis

Mon 2/23

6:00 pm-9:59 pm

1 stop5h 59m

$167

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How to get the cheapest flight ticket from Las Vegas to St. Louis

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

Prices

Airlines

Layovers

Other information

What is the cheapest month to fly to St. Louis?

In general, February is the cheapest month to fly from Las Vegas to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $163. The month of October is another great option to travel to St. Louis, with average flight prices from Las Vegas averaging around $210.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Friday when prices can be found for as low as $200. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $387. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Las Vegas in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $177 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $431 per ticket.

What is the cheapest Las Vegas Harry Reid Intl to Lambert-St Louis flight route?

Fly from Las Vegas Harry Reid Intl to Lambert-St Louis for the best Las Vegas Harry Reid Intl - Lambert-St Louis flight prices

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $256 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Las Vegas for as low as $177 on momondo.

What cabin class options are available on Las Vegas Harry Reid Intl to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Las Vegas Harry Reid Intl 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.

Can stopping save me money on Las Vegas to St. Louis flights?

No. A direct flight is the cheapest option for a flight between Las Vegas to St. Louis.

How have Las Vegas to St. Louis flight prices changed over time?

As of September 2025, prices for Las Vegas to St. Louis flights are approximately 59% more expensive when compared to flights at the same time last year.

When to book flights from Las Vegas to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Las Vegas to St. Louis according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Las Vegas to St. Louis (LAS to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to St. Louis

Best Price Found	$158
Fastest flight time	3h 05m
Direct flights	Every day
Airports in St. Louis	1 airport

The best one-way flight to St. Louis from Las Vegas in the past 72 hours is $158. The best round-trip flight deal from Las Vegas to St. Louis found on momondo in the last 72 hours is $168.

The fastest flight from Las Vegas to St. Louis takes 3h 05m

Direct flights go from Las Vegas to St. Louis every day.

There is 1 airport near St. Louis: Lambert-St Louis (STL)

Search flight deals

How far is Las Vegas Harry Reid Intl to Lambert-St Louis by plane?
Las Vegas Harry Reid Intl and Lambert-St Louis are 1374.1 mi apart from one another. Flights usually cover this in 3h 19m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?
Prices for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport were last updated today.
How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?
As of September 2025, there are 5 operators available to choose from for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport.
How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?
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 Las Vegas Harry Reid Intl Airport 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.
What is the most popular plane model from Las Vegas to St. Louis?
momondo data reveals that the most frequently booked plane model on the route from Las Vegas to St. Louis is Boeing 737 MAX 8, representing 28.32% of all bookings. The subsequent popular models are Airbus A320neo at 21.30%, Boeing 737-800 Passenger/BBJ2 (winglets) at 18.55%, and Boeing 737-700 Passenger/BBJ1 (winglets) at 15.04%.
What is the most popular airline from Las Vegas to St. Louis?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Las Vegas to St. Louis is Frontier (73% of total bookings). The next most popular airlines are Southwest (21%), American Airlines (3%), and United Airlines (2%).

Best airlines flying from Las Vegas to St. Louis

Compare and see reviews for airlines that fly from Las Vegas to St. Louis with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $90	Free Cancellation	Rating 5.8 3,173 reviews	Search Frontier flights
American Airlines	PriceFrom $144	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $258	Free Cancellation	Rating 7.9 7,961 reviews	Search Delta flights
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
Southwest	PriceFrom $273	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights

Southwest Flights From Las Vegas to St. Louis
Across 41 Southwest flights from Las Vegas to St. Louis this week, the average price was $414, with the best Southwest deals starting from $273 round-trip. 4,242 users have rated Southwest on momondo, with an average score of 8.0/10.
Frontier Flights From Las Vegas to St. Louis
Frontier is also a popular choice for this route. Frontier flight deals for Las Vegas to St. Louis start from as low as $90 round-trip, depending on your selected dates, with average Frontier deals seen on momondo around $208. Frontier operates 4 flights to St. Louis from Las Vegas in an average week. Users have rated it 5.8/10 across 3,173 reviews.

St. Charles

Chesterfield

Hermann

Fairview Heights

Florissant

Maryland Heights

O'Fallon

Fenton

Collinsville

Wentzville

Alton

St. Peters

Farmington

Festus

Glencoe

Clayton

Edwardsville

Eureka

Litchfield

Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Las Vegas to St. Louis?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Las Vegas to St. Louis for you.

Can I find flights from Las Vegas to St. Louis with flexible booking policies on momondo?

momondo does allow users to show only those flights to St. Louis from Las Vegas which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Las Vegas to St. Louis?

momondo helps you find the best flight between Las Vegas and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Las Vegas to St. Louis right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Las Vegas to St. Louis flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your St. Louis trip

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Cheap flights from Las Vegas to St. Louis from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to St. Louis departing on 11/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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See travel insights to St. Louis from

How to get the cheapest flight ticket from Las Vegas to St. Louis

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 St. Louis?

What is the cheapest day to depart on your flight to St. Louis?

What is the cheapest time of day to depart on your flight to St. Louis?

What is the cheapest Las Vegas Harry Reid Intl to Lambert-St Louis flight route?

Fly from Las Vegas Harry Reid Intl to Lambert-St Louis for the best Las Vegas Harry Reid Intl - Lambert-St Louis flight prices

How far in advance should I book a flight to St. Louis?

What cabin class options are available on Las Vegas Harry Reid Intl to Lambert-St Louis flights?

There is only 1 cabin class available to choose from on Las Vegas Harry Reid Intl 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.

Can stopping save me money on Las Vegas to St. Louis flights?

No. A direct flight is the cheapest option for a flight between Las Vegas to St. Louis.

How have Las Vegas to St. Louis flight prices changed over time?

As of September 2025, prices for Las Vegas to St. Louis flights are approximately 59% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Las Vegas Harry Reid Intl to Lambert-St Louis?

Frontier, Spirit Airlines, and American Airlines are the most popular carriers operating from Las Vegas Harry Reid Intl to Lambert-St Louis

What airlines fly to St. Louis?

Which airport is the most popular layover for flights between Las Vegas and St. Louis?

Denver (DEN) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Las Vegas to St. Louis?

Flights via Denver (DEN) offer the lowest average round-trip price of $296.

Which layover airport has the shortest travel time from Las Vegas to St. Louis?

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 5h 11m.

Which layover airport has the shortest connection time from Las Vegas to St. Louis?

Denver (DEN) has the shortest average layover time for this route: 1h 05m.

How many flights depart from Las Vegas to St. Louis on average per day?

6 flights are operational daily from Las Vegas to St. Louis as of September 2025. The most popular departure time for this route is 8:00AM, with 65% of flights per day taking off at noon.

How many flights depart from Las Vegas to St. Louis on average per week?

45 flights are operational weekly from Las Vegas to St. Louis as of September 2025. The most popular departure day for this route is Mon, with 24% of flights per week taking off on this day.

When to book flights from Las Vegas to St. Louis

Cheap Las Vegas to St. Louis (LAS to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to St. Louis

Best Price Found

Fastest flight time

Direct flights

Airports in St. Louis

How far is Las Vegas Harry Reid Intl to Lambert-St Louis by plane?

When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?

How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?

How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Lambert-St Louis Airport?

What documentation or ID do you need to fly to Lambert-St Louis Airport?

What is the most popular plane model from Las Vegas to St. Louis?

What is the most popular airline from Las Vegas to St. Louis?

Best airlines flying from Las Vegas to St. Louis

Compare and see reviews for airlines that fly from Las Vegas to St. Louis with momondo

Southwest Flights From Las Vegas to St. Louis

Frontier Flights From Las Vegas to St. Louis

Traveling to a place near St. Louis?

Why use momondo?

Why should I use momondo to find a flight deal from Las Vegas to St. Louis?

Can I find flights from Las Vegas to St. Louis with flexible booking policies on momondo?

How can momondo help me find flights from Las Vegas to St. Louis?

I’m not ready to book a flight from Las Vegas to St. Louis right now. Can momondo alert me if prices change?

An easier way to manage your St. Louis trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Missouri