$20 Cheap Flights to Maryland Heights, MO

View $20 flight on Sun, Dec 21, 2025Opens in a new window

Popular airlines to Maryland Heights

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How much is the cheapest flight to Maryland Heights?

Prices were available within the past 7 days and start at $20 for one-way flights and $64 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Jan 22 - Sun, Jan 25
MCO
Orlando
STL
St. Louis
$64 Roundtrip, just found
$64
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Jan 22 from Orlando to St. Louis, returning Sun, Jan 25, priced at $64 just found
American Airlines
Sat, Feb 28 - Wed, Mar 4
DFW
Dallas
STL
St. Louis
$101 Roundtrip, found 3 days ago
$101
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Feb 28 from Dallas to St. Louis, returning Wed, Mar 4, priced at $101 found 3 days ago
Southwest Airlines
Sat, Jan 17 - Tue, Jan 20
DAL
Dallas
STL
St. Louis
$102 Roundtrip, found 4 days ago
$102
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Sat, Jan 17 from Dallas to St. Louis, returning Tue, Jan 20, priced at $102 found 4 days ago
United
Wed, Jan 14 - Wed, Jan 21
DEN
Denver
STL
St. Louis
$157 Roundtrip, found 1 hour ago
$157
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Jan 14 from Denver to St. Louis, returning Wed, Jan 21, priced at $157 found 1 hour ago
Spirit Airlines
Thu, Nov 13 - Thu, Nov 20
LGA
New York
STL
St. Louis
$176 Roundtrip, found 6 hours ago
$176
Roundtrip
found 6 hours ago
Select Spirit Airlines flight, departing Thu, Nov 13 from New York to St. Louis, returning Thu, Nov 20, priced at $176 found 6 hours ago

Find the cheapest month to fly from Columbus (CMH) to St. Louis (STL)

October is typically the cheapest month to fly

From $137 - $910 per traveler.

Alternative airports near Maryland Heights

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Lambert-St. Louis Intl. STL. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $267
STL
Lambert-St. Louis Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $267

Frequently asked questions

What month is the cheapest to fly to Maryland Heights?
Plan your trip for January if you're looking for a good price on your fare. It's the cheapest month to fly to Maryland Heights. If possible, avoid traveling during busy periods such as public holidays or school breaks.
Which US cities have the cheapest flights to Maryland Heights?
Score cheap flights to Maryland Heights from Chicago, Dallas and Denver. These cities usually offer the lowest fares to this unique destination. But remember that holiday periods, demand and stopovers will also have an influence on rates, so remain flexible and book when you see a bargain.
Which US cities fly direct to Maryland Heights?
You can fly to Maryland Heights without any stops from 55 US destinations. To find a nonstop route, select "Direct flights only" when organizing your flights to Maryland Heights on Expedia. Then, explore your options and pick the best departure from any of these cities:

  • Chicago
  • Dallas
  • Denver
  • New York
  • Atlanta

How to find a cheap flight to Maryland Heights?
Book your trip early for the best chance of scoring cheap flights to Maryland Heights. Also, consider traveling during off-season months like December and January. If you fly on a Thursday, you'll save an average of 16% compared to departing on a Sunday.* Save time searching every day and create a price alert on the Expedia app. We'll send you a notification when fares drop.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Maryland Heights?
Although booking in advance is generally the easiest way to save money, don't worry if your Maryland Heights vacation is last minute. It's still possible to find cheap flights to Maryland Heights, especially if your plans have some flexibility. Try switching up your trip dates, looking at different ticket options or jetting out of an alternative airport.
How far in advance should I book a flight to Maryland Heights?
Book your flight to Maryland Heights two to four months ahead if you're taking off from an international destination. For domestic travel, the usual timeframe is 28 days in advance. Better deals and a greater choice of departure dates, schedules and seating options are just some of the advantages of booking early.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Maryland Heights?
You can save an average of 8% if you buy tickets on a Sunday rather than Fridays, which tend to be the most expensive day to book.* When it comes to snapping up a cheap flight to Maryland Heights, timing makes a difference.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to Maryland Heights?
Maryland Heights is connected to 33 airports worldwide through 10 carriers, with Lambert-St. Louis Intl. Airport (STL) as its primary entry point. Take your pick of these leading airlines to Maryland Heights when booking your trip:

  • Delta Air Lines
  • American Airlines
  • United Airlines
  • Southern Airways Express

Where do you fly into Maryland Heights?
The main airport to fly to Maryland Heights is Lambert-St. Louis Intl. Airport (STL). You can also touch down at Spirit of St. Louis Airport (SUS) when flying to Maryland Heights.
How far is the airport from central Maryland Heights?
Arriving at Lambert-St. Louis Intl. Airport (STL) puts you around 4 mi northeast of central Maryland Heights.
Can I save money by booking a Maryland Heights trip package?
Bundle your flights and accommodations and you could save hundreds of dollars. What's more, you can add extras like activities and car rentals to your Maryland Heights flight and hotel package deal. With Expedia, it's easy to book all your Maryland Heights travel plans in one place.
Can I change or cancel my flight to Maryland Heights?
It's often possible to change or cancel your flight to Maryland Heights. Many airlines let you cancel flights for free within 24 hours of booking. However, some flights are non-refundable, and airlines may issue you a credit toward future travel instead of a direct refund. To find cheap flights to Maryland Heights with flexible change policies, check "No cancel fee" or "Changes included" when you search. Need more information? Visit our Customer Service Portal.

Book with confidence

Tips to find the cheapest flights to Maryland Heights

The cheapest day to fly

Get started finding a cheap flight to Maryland Heights 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.

The cheapest month to fly

January is the cheapest month to fly to Maryland Heights. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Maryland Heights. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to Maryland Heights, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to Maryland Heights

The lowest price for round-trip flights to Maryland Heights in 2025 starts from from $64, while one-way tickets start from from $20. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Maryland Heights. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Maryland Heights

Frontier Airlines, American Airlines, Southwest Airlines, United, Spirit Airlines are just some of the airlines that can typically offer cheap tickets to Maryland Heights. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Maryland Heights and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Maryland Heights, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Maryland Heights. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your Maryland Heights plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to Maryland Heights

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Maryland Heights.

Stopover savings

The cheapest tickets to Maryland Heights are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Maryland Heights. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to Maryland Heights for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Maryland Heights. Simply download the free Expedia app to your smart device and activate Maryland Heights flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Maryland Heights. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Tips to find the cheapest flights to Maryland Heights

Travel information

Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
$64

Trending flights to Maryland Heights

Prices were available within the past 7 days and start at $20 for one-way flights and $64 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Jan 22 - Sun, Jan 25
MCO
Orlando
STL
St. Louis
$64 Roundtrip, just found
$64
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Jan 22 from Orlando to St. Louis, returning Sun, Jan 25, priced at $64 just found

Explore a world of travel with Expedia

*Available to One Key members.