Cheap Flights to Arnold , MO from CA $42

View CA $42 flight on Sun, Aug. 24, 2025Opens in a new window

Popular airlines to Arnold

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How much is the cheapest flight to Arnold?

Prices were available within the past 7 days and start at CA $42 for one-way flights and CA $83 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sun, Aug. 24 - Mon, Aug. 25
DTW
Detroit
STL
St. Louis
CA $83 Roundtrip, found 3 hours ago
CA $83
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Sun, Aug. 24 from Detroit to St. Louis, returning Mon, Aug. 25, priced at CA $83 found 3 hours ago
Delta
Sun, Aug. 24 - Mon, Aug. 25
DTW
Detroit
STL
St. Louis
CA $163 Roundtrip, found 3 hours ago
CA $163
Roundtrip
found 3 hours ago
Select Delta flight, departing Sun, Aug. 24 from Detroit to St. Louis, returning Mon, Aug. 25, priced at CA $163 found 3 hours ago
American Airlines
Thu, Oct. 16 - Sat, Oct. 18
DTW
Detroit
STL
St. Louis
CA $243 Roundtrip, found 20 hours ago
CA $243
Roundtrip
found 20 hours ago
Select American Airlines flight, departing Thu, Oct. 16 from Detroit to St. Louis, returning Sat, Oct. 18, priced at CA $243 found 20 hours ago
Frontier Airlines
Sun, Aug. 10 - Sat, Aug. 16
DTW
Detroit
STL
St. Louis
CA $292 Roundtrip, found 1 day ago
CA $292
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, Aug. 10 from Detroit to St. Louis, returning Sat, Aug. 16, priced at CA $292 found 1 day ago
United
Mon, Aug. 18 - Wed, Aug. 20
DTW
Detroit
STL
St. Louis
CA $352 Roundtrip, found 18 hours ago
CA $352
Roundtrip
found 18 hours ago
Select United flight, departing Mon, Aug. 18 from Detroit to St. Louis, returning Wed, Aug. 20, priced at CA $352 found 18 hours ago

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

August is typically the cheapest month to fly

From CA $197 - CA $826 per traveller.

Graph displaying average flight prices per month

Expedia.ca gives you the best tools to secure great deals on flights to Arnold. Use our easy and convenient booking engine to browse nonstop flights and convenient departure points every day of the year. Search airfares from the top airlines to book your perfect flight to Arnold. Whatever your travel needs, you can always rely on Expedia.ca to help you find cheap flights to Arnold.

Using our booking engine is simple - just type in your points of travel and preferred dates and Expedia.ca does the rest! If your travel times are flexible, you can find even better bargains by adjusting your flight dates. Browse connecting flights to increase your chances of finding even lower fares. Thanks to Expedia's Best Price Guarantee, you can book your Arnold flights with full confidence knowing that you've found the best deal online.

Expedia.ca makes the booking process easy and stress-free by offering support along the entire way. Our friendly staff is available 24 hours a day to provide assistance and help you book your ticket. Call us toll-free at 1-888-397-3342 to answer any questions that you may have about your trip to Arnold.

Looking to save even more? Get additional savings by bundling your Arnold flight with a hotel and/or car rental to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. With Expedia.ca, there's no shortage of options to save even more on your Arnold trip!

Frequently asked questions

What is the name of Arnold's airport?
Book a flight to Arnold and you'll be arriving at Lambert-St. Louis Intl. Airport (STL).
How far is STL from central Arnold?
The trip from Lambert-St. Louis Intl. Airport (STL) to downtown Arnold is reasonably long. You'll need to travel 32 kilometres before you can check in to your hotel in the city.
What airport is best to fly into Arnold?
A flight to Arnold means coming in to land at STL. Jump off the plane, grab your bags and you'll be 32 kilometres from the downtown area.
How many airlines fly to Arnold?
Arnold is serviced by 12 airlines from 61 airports across the globe.
Which airlines fly to Arnold?
United Airlines and American Airlines are some of the most sought-after airlines with flights to Arnold. Travellers often pick Chicago as a starting point with United Airlines flying this route the most.
How many nonstop flights are there to Arnold?
Arranging an awesome Arnold getaway is child's play when there are 1,206 direct flights each week to choose from.
Where are the most popular flights to Arnold departing from?
The most popular flights to Arnold take off from Chicago, Dallas and New York airports.
How long is the flight to Arnold Airport?
If it's Chicago you're departing, you'll be airborne for around 1 hour and 22 minutes before you arrive in Arnold. Terminal to terminal from Dallas takes around 1 hour and 43 minutes and from New York, it's 3 hours and 1 minute.
How to book the cheapest flight to Arnold?
We all know those travellers who somehow grab wonderfully cheap plane tickets whenever they fly. Want to know how to do it for your Arnold vacation? Don't wait until the last moment to lock in your flight. Another good way to get the most affordable fare is to shop around. If where you're headed has several airports, be sure to research the cost of flying into a smaller terminal. And finally, remember that it's first in, best dressed. Familiarize yourself with airfare costs and have your credit card ready to reserve your seat as soon as you spot an unbeatable bargain. The sweetest deals don't last long.
Do you have any tips for my flight to Arnold?
No matter where you're coming from, flying can be a pleasant experience if you're well prepared. We've compiled a list of handy tips that will get your Arnold vacation started on the right foot. What to pack in your hand luggage:

  • First things first, pack in your passport, travel docs, wallet and vital medications. Next, you'll want some extra in-flight entertainment to while away the hours. A juicy novel and a laptop crammed with your favourite shows are some wonderful options. If you hope to take a short snooze, a quality neck pillow and a pair of earplugs will also be useful. Finally, find room for a toothbrush and some deodorant so you'll step off the plane looking fresh and raring to go.

Do not pack the following items in your hand luggage:

  • Pack all your full-sized bottles of hair gel and hairspray in your checked baggage. Any liquids in your carry-on bag larger than 3.4 ounces (100 millilitres) will be confiscated by security. Pointed or sharp objects, like your trusty Swiss Army knife, and dangerous goods which are flammable or explosive, such as aerosols and fuels, are also restricted.

What to wear on a flight:

  • The aisles of an aircraft aren't the place for a fashion parade. Don comfortable layers and choose shoes that are closed-toe, flat and easy to pull on and off.
  • The result of sustained periods of immobility, deep vein thrombosis (DVT) is a blood clotting condition that can affect some passengers during long flights. Reduce the risks by drinking water, keeping your ankles and legs moving and wearing compression tights or socks.

How to get through airport security fast when flying to Arnold?
Being organized before you get to the airport will help make your getaway to Arnold easy and painless. We've compiled some handy tips for a swift journey through security:

  • Your boarding pass and passport will need to be inspected by airport security personnel. Have them easily accessible so you don't hold up the line.
  • Time to strip down. Well sort of. Your jacket, belt, keys and other small items, like your headphones, will be required to go through the X-ray machine. Make the whole process faster by removing them as it gets closer to your turn.
  • For just a few moments, you'll have to unplug from the digital world. Your phone, tablet and any other electronic gadgets must also go through the scanner.
  • Don't forget to remove gels and liquids from your carry-on luggage. They usually need to be sent through the X-ray scanner separately. Each product should be no larger than 3.4 ounces (100 millilitres) and everything must fit inside a single quart-size (one litre), clear zip-lock bag.
  • There's a good chance you'll be asked to take your shoes off to be X-rayed, so wearing lightweight sneakers is always a clever idea.
  • Airlines won't allow any pocket knives or other sharp items in your carry-on baggage. If you must bring these kinds of items, put them in your checked baggage.

Flights to Arnold information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
CA $82

Trending flights to Arnold

Prices were available within the past 7 days and start at CA $42 for one-way flights and CA $83 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Sep. 25 - Sat, Oct. 4
YYC
Calgary
STL
St. Louis
CA $429 Roundtrip, found 2 days ago
CA $429
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Sep. 25 from Calgary to St. Louis, returning Sat, Oct. 4, priced at CA $429 found 2 days ago
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