$21 Cheap Flights to Brentwood , MO

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How much is the cheapest flight to Brentwood?

Prices were available within the past 7 days and start at $21 for one-way flights and $48 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, May 7 - Sat, May 18
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$108 Roundtrip, found 1 day ago
$108
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, May 7 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Sat, May 18, priced at $108 found 1 day ago
Frontier Airlines
Tue, May 21 - Sat, Jun 8
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$119 Roundtrip, found 1 day ago
$119
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, May 21 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Sat, Jun 8, priced at $119 found 1 day ago
Frontier Airlines
Tue, May 21 - Wed, May 29
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$127 Roundtrip, found 9 hours ago
$127
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Tue, May 21 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Wed, May 29, priced at $127 found 9 hours ago
Frontier Airlines
Sun, May 19 - Sat, Jun 8
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$129 Roundtrip, found 1 day ago
$129
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, May 19 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Sat, Jun 8, priced at $129 found 1 day ago
American Airlines
Wed, May 15 - Tue, May 21
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$193 Roundtrip, found 2 days ago
$193
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, May 15 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Tue, May 21, priced at $193 found 2 days ago

Find Your Flights to Brentwood STL

Cheap flights to Brentwood (STL)

Get started finding a cheap flight to Brentwood on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Brentwood.

Roundtrip prices range from $48 - $193, and one-ways to Brentwood start as low as $21.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

Airlines that fly to Brentwood (STL)

You have several options for which airline you choose to travel with to Brentwood. There are 10 airlines flying into STL: Frontier Airlines, American Airlines. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programs may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel in one online platform.

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at the optimal times. Airfare to Brentwood (STL) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to STL in May and in May for one-ways.

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24-hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

How do I find cheap flights to Brentwood that have flexible change policies?
When it comes to flying these days, flexibility is crucial. That’s why we have a “No change fee” search function to help you find flexible, low-priced airfares to Brentwood. It’s near the top left of your screen directly underneath the “Flexible change policies” heading.
What is the name of the airport in Brentwood?
Lambert-St. Louis Intl. Airport (STL) is the major airport in Brentwood.
How far is STL from central Brentwood?
Lambert Field is 14 mi from downtown Brentwood, so expect a reasonable commute into the center.
How can I book the cheapest flight to Brentwood?
Book a cheap flight by being flexible with your travel dates, departure/arrival airports and times, and any stops on your route. Cheap fares also depend on the airline. When searching for your flight to Brentwood with Expedia, keep an eye out for low-cost carriers. Another tip is to book well in advance. While you may be able to find some fantastic deals, ticket prices generally increase as the departure date nears. Currently, one of the cheapest one-way fares to Brentwood $29. This is for a flight leaving Denver in May. Enter your travel details into the search fields and browse our Brentwood flight deals. Don’t forget that if you bundle your airfare and hotel, you can save even more!
Which day of the week is the best day to buy a plane ticket to Brentwood?
Research suggests that Sundays are the best day of the week for booking cheaper airfares. The chances of scoring an incredible deal to Brentwood also depend on how far ahead you book your journey. The cheapest tickets can typically be found from 21 days to about 45 days out from the day of departure. You’re also likely to find bargains when tickets are first released. Savings are subject to change and may vary depending on selections made.
What airport is best to fly into Brentwood?
STL is the only major airport in Brentwood. Before you jet off, it’s a smart idea to find out a thing or two about it. The terminal is situated 14 mi from the downtown area.
Which airlines fly to Brentwood?
Choose from 9 airlines that connect Brentwood with 60 airports around the world, including American Airlines. Chicago is the most popular departure point for American Airlines flights to Brentwood. United Airlines can also fly you to this destination.
How many nonstop flights are there to Brentwood?
With roughly 1,273 direct flights running every week, you’ll be touching down in Brentwood before you can say, “Are we there yet?”
Where are the most popular flights to Brentwood departing from?
Travelers frequently jet off from Chicago, Denver and Dallas airports when flying to Brentwood.
Do you have any tips for my flight to Brentwood?

  • Wherever you’re going, flying can be a pleasant experience if you’re prepared. First, pack your passport (or a valid ID), travel documents and medications. Next, toss in some extra in-flight entertainment to help make the time fly by. A good read and a tablet filled with the latest movies are fantastic options. If you plan on catching some sleep, a memory-foam neck pillow and headphones are also worth squeezing in.
  • You’ll also want to check with your airline regarding what you can’t bring on board your flight. Box cutters, utility knives, razor blades and swords are among the prohibited items. Anything flammable, sharp or explosive is generally not allowed in your carry-on. Remember to pack any sports equipment like ski poles or baseball bats only in your checked luggage.

What to wear on a flight:

  • Go for comfort before fashion when flying. Dress in layers and wear natural fabrics as they allow moisture and air to pass through and keep you cool. Cabin temperatures typically get cooler on long-haul flights, so pack a sweater and always wear sneakers or flat, closed-toe shoes.
  • The condition called deep vein thrombosis (DVT) is a risk on long-haul flights. It’s the result of blood clotting due to poor circulation and inactivity. Wandering up and down the aisle and doing foot and leg exercises while seated can help prevent this developing. Wearing compression tights or socks can also help to lower your risk.

How can I get a cheap last-minute flight to Brentwood?
Scoring a cheap, spur-of-the-moment flight to Brentwood is as simple as having some flexibility with your travel plans. Have some leeway with your choice of carrier, travel dates and flight times. If your destination has a few airports, compare the prices of flying into each of them for the best deal.
Where can I learn more about changing or canceling my flight to Brentwood?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.
Flights to Brentwood information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Spirit Airlines, United
Roundtrip price
$108
Popular airline
Delta

Trending flights to Brentwood

Prices were available within the past 7 days and start at $21 for one-way flights and $48 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, May 7 - Tue, May 7
DEN
Denver Intl.
STL
Lambert-St. Louis Intl.
$48 Roundtrip, found 2 days ago
$48
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, May 7 from Denver Intl. to Lambert-St. Louis Intl., returning Tue, May 7, priced at $48 found 2 days ago
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