$29 Cheap Flights to Arnold , MO

Bundle Your Flight + Hotel & Save!

Featured airlines

Featured Airlines: American Airlines, United Airlines, Delta, Spirit, JetBlue, Frontier, Air India, Hawaiian Airlines and Qatar Airways

    Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

How much is the cheapest flight to Arnold?

Prices were available within the past 7 days and start at $29 for one-way flights and $53 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, May 7 - Sat, May 11
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$108 Roundtrip, found 3 days ago
$108
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Tue, May 7 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Sat, May 11, priced at $108 found 3 days ago
Frontier Airlines
Sun, May 12 - Wed, May 22
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$118 Roundtrip, found 1 day ago
$118
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, May 12 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Wed, May 22, priced at $118 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 5 days ago
$127
Roundtrip
found 5 days 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 5 days ago
Frontier Airlines
Tue, Apr 30 - Thu, May 2
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$134 Roundtrip, found 1 day ago
$134
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Apr 30 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Thu, May 2, priced at $134 found 1 day ago
Spirit Airlines
Tue, Jun 4 - Tue, Jun 11
CMH
John Glenn Columbus Intl.
STL
Lambert-St. Louis Intl.
$193 Roundtrip, found 5 days ago
$193
Roundtrip
found 5 days ago
Select Spirit Airlines flight, departing Tue, Jun 4 from John Glenn Columbus Intl. to Lambert-St. Louis Intl., returning Tue, Jun 11, priced at $193 found 5 days ago

Find Your Flights to Arnold STL

Cheap flights to Arnold (STL)

Get started finding a cheap flight to Arnold 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 Arnold.

Roundtrip prices range from $53 - $193, and one-ways to Arnold start as low as $29.

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 Arnold (STL)

You have several options for which airline you choose to travel with to Arnold. There are 10 airlines flying into STL: Frontier Airlines, American Airlines, Spirit 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 Arnold (STL) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to STL in May and in April 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 Arnold that have flexible change policies?
By using our nifty “No change fee” filter, that’s how. Just enter your preferred dates and destination, click “Search,” then mark the checkbox directly below the “Flexible change policies” heading (to the left). Expedia makes it a snap to find cheap, flexible tickets to Arnold.
What is the name of the airport in Arnold?
Jump on a flight to Arnold and you’ll disembark at Lambert-St. Louis Intl. Airport (STL).
How far is STL from central Arnold?
Long commutes aren’t a big deal if you plan ahead for them. Downtown Arnold is 35 mi from Lambert Field, so it’s smart to know how to get to the city before you touchdown.
How can I book the cheapest flight to Arnold?
If you’d like to have more spending money for your Arnold getaway, avoid booking at the last minute. Prices typically rise as the departure date nears. Consider your airport options too. Fares can vary depending on which airport you fly into. Make sure you compare prices across airlines and if possible, be flexible with your dates. Finally, be ready to book fast. If you see an amazing deal, grab it! Right now, one of the cheapest one-way tickets to Arnold costs $29. This is for a flight leaving from Philadelphia in May.
Which day of the week is the best day to buy a plane ticket to Arnold?
Research suggests Sunday is the best day of the week when it comes to booking cheaper fares. Your odds of picking up a terrific deal to Arnold also depend on how far ahead you book your journey. The cheapest plane tickets are usually found from 21 days to about 45 days out from your depature date. You’re also likely to find some good deals when tickets are first released. Savings are subject to change and may vary depending on selections made.
What airport is best to fly into Arnold?
Lambert Field is the main airport in Arnold. Before you hop on the plane, it’s a wise idea to know a little about it. The terminal is located 35 mi from the downtown area.
Which airlines fly to Arnold?
You can choose from 9 airlines that connect Arnold with 60 airports across the globe, including American Airlines. Chicago is the most popular departure point for American Airlines flights to Arnold. United Airlines also operates regular services to this destination.
How many nonstop flights are there to Arnold?
With roughly 1,273 direct flights running every week, you’ll be hitting the runway in Arnold before you have time to say, “Are we there yet?”
Where are the most popular flights to Arnold departing from?
Travelers frequently jet off from Chicago, Denver and Dallas airports when heading to Arnold.
Do you have any tips for my flight to Arnold?

  • Wherever you’re coming from, flying can be an enjoyable experience if you’re properly prepared. First, pack your passport, travel documents and medications. Next, throw in some extra in-flight entertainment to while away the hours. A good read and a tablet filled with your favorite movies are good options. If you’re hoping to catch some z’s, a comfy neck pillow and earplugs will also come in handy.
  • Don’t forget there’s also a list of prohibited items for your hand luggage which can differ between airlines. Generally, avoid carrying anything sharp, explosive or flammable. This includes things like pocket knives, razor blades, aerosol cans and flares. Sports equipment like baseball bats, tennis rackets and objects considered weapons, such as swords and batons, are also banned from the cabin.

What to wear on a flight:

  • The aisles of an aircraft aren’t suitable for a fashion show. Layer up with comfortable clothing and pack a hoodie as it can get cool in the cabin on long-haul flights. Sneakers or other closed-toe shoes are the best type of footwear for longer journeys.
  • The condition known as deep vein thrombosis (DVT) is a risk on long-haul flights. It’s the result of blood clotting caused by inactivity and poor circulation. Walking up and down the aisle and doing foot and leg stretches while seated can prevent it developing. Wearing compression socks or tights also helps to lessen your risk.

How can I get a cheap last-minute flight to Arnold?
Picking up a cheap, spur-of-the-moment flight to Arnold is as easy as being flexible with your travel plans. Have some wiggle room with your choice of carrier, travel dates and flight times. If your destination has multiple airports, compare the prices of jetting into each of them for the best airfare deals.
Where can I learn more about changing or canceling my flight to Arnold?
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 Arnold 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, Sun Country Airlines, United
Roundtrip price
$108
Popular airline
Delta

Trending flights to Arnold

Prices were available within the past 7 days and start at $29 for one-way flights and $53 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.
$53 Roundtrip, found 1 hour ago
$53
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Tue, May 7 from Denver Intl. to Lambert-St. Louis Intl., returning Tue, May 7, priced at $53 found 1 hour ago
*Available to One Key members.