Cheap Flights to St. Louis

View ฿3,100 flight on Wed, 15 Apr 2026Opens in a new window

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Cheap round-trip flights to St. Louis

Prices were available within the past 7 days and start at ฿3,100 for one-way flights and ฿7,180 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 1 Oct - Thu, 15 Oct
SEA
Seattle
STL
St. Louis
฿7,180 Return, found 3 hours ago
฿7,180
Return
found 3 hours ago
Select Delta flight, departing Thu, 1 Oct from Seattle to St. Louis, returning Thu, 15 Oct, priced at ฿7,180 found 3 hours ago
Alaska Airlines
Tue, 24 Mar - Tue, 21 Apr
SEA
Seattle
STL
St. Louis
฿7,420 Return, found 1 day ago
฿7,420
Return
found 1 day ago
Select Alaska Airlines flight, departing Tue, 24 Mar from Seattle to St. Louis, returning Tue, 21 Apr, priced at ฿7,420 found 1 day ago
United
Thu, 1 Oct - Thu, 15 Oct
SEA
Seattle
STL
St. Louis
฿9,680 Return, found 3 hours ago
฿9,680
Return
found 3 hours ago
Select United flight, departing Thu, 1 Oct from Seattle to St. Louis, returning Thu, 15 Oct, priced at ฿9,680 found 3 hours ago
American Airlines
Mon, 23 Mar - Mon, 20 Apr
SEA
Seattle
STL
St. Louis
฿10,150 Return, found 1 day ago
฿10,150
Return
found 1 day ago
Select American Airlines flight, departing Mon, 23 Mar from Seattle to St. Louis, returning Mon, 20 Apr, priced at ฿10,150 found 1 day ago
Philippine Airlines
Thu, 1 Oct - Thu, 15 Oct
BKK
Bangkok
STL
St. Louis
฿28,715 Return, found 14 hours ago
฿28,715
Return
found 14 hours ago
Select Philippine Airlines flight, departing Thu, 1 Oct from Bangkok to St. Louis, returning Thu, 15 Oct, priced at ฿28,715 found 14 hours ago

Frequently asked questions

What is the name of St. Louis' airport?
Book a flight to St. Louis and you'll be stepping off the plane at Lambert-St. Louis Intl. Airport (STL).
How far is Lambert-St. Louis Intl. Airport (STL) from central St. Louis?
Lambert Field is 19 kilometres from downtown St. Louis, so you'll have a reasonable commute into the heart of the city.
What airport is best to fly into St. Louis?
Situated 19 kilometres from the downtown area, Lambert-St. Louis Intl. Airport (STL) is your gateway to St. Louis.
How many airlines fly to St. Louis?
There are 12 airlines that service St. Louis from 61 airports across the globe.
Which airlines fly to St. Louis?
United Airlines and American Airlines are some of the leading airlines that offer flights to St. Louis. Travellers often choose Chicago as a starting point with United Airlines operating the most flights on this route.
How many nonstop flights are there to St. Louis?
Planning an awesome St. Louis escape is a walk in the park when there are 1,206 direct flights every week to select from.
Where are the most popular flights to St. Louis departing from?
A large number of flights to St. Louis leave from Chicago, Dallas and New York airports.
How long is the flight to St. Louis Airport?
Which city you depart from determines how long you'll be strapped into your seat. From Chicago to St. Louis, the average flight time is 1 hour and 22 minutes. From Dallas it's roughly 1 hour and 43 minutes, and from New York it's 3 hours and 1 minute.
How to book the cheapest flight to St. Louis?
If you'd like to have some extra spending money on your St. Louis holiday, then listen up! As every seasoned jet-setter knows, don't book at the very last minute. Airfares are usually highest close to the departure date. Also, shop around and compare your options. If your destination has multiple airports, you may be able to nab an excellent deal by flying into a less busy terminal. Last but not least, be ready to book quickly if you find a great price. It might not be available for too long! With a bit of know-how and a little good fortune, the ideal airfare will be yours.
Do you have any tips for my flight to St. Louis?
Wherever you're jetting in from, flying can be a pleasurable experience if you prepare well enough. We've made a list of handy hints that will get your St. Louis holiday started on the right note. What to pack in your hand luggage:

  • Air travel can be a great experience if you've got all the right stuff. Firstly, you'll need basic toiletries, such as deodorant, toothpaste and a toothbrush, a clean set of clothes and a good read. Next, find a spot in your hand luggage for your electronic devices, chargers, any vital medications and perhaps a quality neck pillow too. Last, but definitely not least, remember to bring your passport, travel docs and your credit cards.

Do not pack the following items in your hand luggage:

  • Squeeze all your full-sized bottles of shampoo and conditioner in your checked luggage. Any liquids in your carry-on suitcase larger than 3.4 ounces (100 millilitres) will be confiscated by security. Sharp or pointed objects, like a Swiss Army knife, and products which are flammable or explosive, such as flares, chemicals agents and fireworks, are also banned.

What to wear on a flight:

  • Comfort should be your highest priority when choosing what to wear on your flight. Loose clothing is a smart option, as are flat, slip-on shoes.
  • Deep vein thrombosis (DVT) can pose a risk on long-haul flights. It results from blood clotting due to inactivity and poor circulation, so do some gentle foot and leg exercises in your seat and consider wearing compression socks or tights.

How to get through airport security fast when flying to St. Louis?
As savvy travellers know, the secret is to be well organised before you arrive at the security gate. That way, you'll be stepping onto that plane to St. Louis in a flash. Follow these tips and get your trip off to a spectacular start:

  • First things first. Your travel ID and boarding pass will need to be inspected by airport security. Have them easily accessible so you don't hold up the line.
  • The X-ray machine is up next. Remove anything on you that is likely to set off the alarm. This includes things like earphones or headphones, as well as bulky coats or jackets. They'll need to be placed on the conveyor belt for screening.
  • For just a few minutes, you'll have to unplug from the digital world. Your tablet, phone and any other electronic gadgets will also need to go through the scanner.
  • Don't forget to remove gels and liquids from your carry-on bag. They often need to be sent through the X-ray separately. Each item should be in a container no larger than 3.4 ounces (100 millilitres) and everything must fit in a single quart-size (one litre), clear zip-close bag.
  • Slip-on shoes are a great footwear choice as you're less likely to have to remove them when passing through security. Boots and other bulky shoes are usually subjected to additional screening.
  • Airlines will not allow any sharp objects in the cabin. If you need to bring these kinds of items, put them in your checked luggage.

Book with confidence

Cheap Flights to St. Louis

St. Louis is known for its many activities and sites that are free to the public. You can make the enjoyment of experiencing inexpensive events in the Show-Me State even more satisfying by securing cheap flights to St. Louis. Luckily, St. Louis is a destination that is already very inexpensive. Low cost St. Louis airfare is available from nearly any location in the United States. Whether your airport is large or small, you can find great deals on tickets to St. Louis through Expedia. You can get even better deals by sorting your flight choices according to price before picking the one that is best suited to your needs.

When to Buy Tickets to St. Louis

Flights to St. Louis are available at reasonable prices throughout the year. Generally, heavier tourist seasons occur during the summer months as well as during winter holidays. However, prices on St. Louis flights do not increase significantly at any point during the year. You should try to purchase your St. Louis airfare in advance. While emergency situations may require that your purchase last minute tickets, you can play hundreds of dollars more for a last minute flight. If possible, buy tickets to St. Louis at least 21 days in advance. This gives you ample time to make all of your vacation arrangements while taking advantage of sales that can creep up when a flight hasn't yet filled to capacity.

Book Your Flight with Expedia

Expedia lets you search across the largest number of airlines and flights, which means that you'll be able to find great flight deals at the perfect travel date and time. There's simply no substitute for great prices suited to your flight needs and backed by excellent customer support.

St. Louis Airport Arrivals

Like the city it serves, Lambert St. Louis Intl. Airport is a massive environment that feels like a hometown. This Midwest airport is a popular choice for business travelers, sports enthusiasts, and families who wish to experience a cosmopolitan city with low vacation prices. Navigating Lambert St. Louis is easy for the first-timer. Upon exiting your terminal, you simply follow signage to baggage claim. This area gives you access to transportation including airport shuttles, taxis, and rental car desks. When you return to the airport for your flight back home, you will find plenty of restaurants and shops to travel necessities and last minute souvenirs.

Travel information

Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Return price
฿7,180

Trending flights to St. Louis

Prices were available within the past 7 days and start at ฿3,100 for one-way flights and ฿7,180 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Thu, 1 Oct - Thu, 15 Oct
BKK
Bangkok
STL
St. Louis
฿28,715 Return, found 14 hours ago
฿28,715
Return
found 14 hours ago
Select Philippine Airlines flight, departing Thu, 1 Oct from Bangkok to St. Louis, returning Thu, 15 Oct, priced at ฿28,715 found 14 hours ago
*Available to Expedia members.