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Cheap Flights from Adelaide (ADL) to St. Louis (STL)

View AU$1,061 flight on Wed, 12 Aug 2026Opens in a new window

Popular airlines from Adelaide, SA Airport (ADL) to Lambert-St. Louis International Airport (STL)

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Cheap Flights from Adelaide (ADL) to St. Louis (STL)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Jetstar
Wed, 19 Aug - Sat, 29 Aug
ADL
Adelaide
STL
St. Louis
AU$1,768 Return, found 1 day ago
AU$1,768
Return
found 1 day ago
Select Jetstar flight, departing Wed, 19 Aug from Adelaide to St. Louis, returning Sat, 29 Aug, priced at AU$1,768 found 1 day ago
Jetstar
Wed, 12 Aug - Sat, 29 Aug
ADL
Adelaide
STL
St. Louis
AU$1,768 Return, found 4 days ago
AU$1,768
Return
found 4 days ago
Select Jetstar flight, departing Wed, 12 Aug from Adelaide to St. Louis, returning Sat, 29 Aug, priced at AU$1,768 found 4 days ago
Jetstar
Thu, 13 Aug - Sat, 29 Aug
ADL
Adelaide
STL
St. Louis
AU$1,770 Return, found 4 days ago
AU$1,770
Return
found 4 days ago
Select Jetstar flight, departing Thu, 13 Aug from Adelaide to St. Louis, returning Sat, 29 Aug, priced at AU$1,770 found 4 days ago
Jetstar
Sat, 29 Aug - Sat, 19 Sept
ADL
Adelaide
STL
St. Louis
AU$1,780 Return, found 4 days ago
AU$1,780
Return
found 4 days ago
Select Jetstar flight, departing Sat, 29 Aug from Adelaide to St. Louis, returning Sat, 19 Sept, priced at AU$1,780 found 4 days ago
Jetstar
Tue, 25 Aug - Sun, 6 Sept
ADL
Adelaide
STL
St. Louis
AU$1,780 Return, found 4 days ago
AU$1,780
Return
found 4 days ago
Select Jetstar flight, departing Tue, 25 Aug from Adelaide to St. Louis, returning Sun, 6 Sept, priced at AU$1,780 found 4 days ago
Jetstar
Mon, 10 Aug - Mon, 17 Aug
ADL
Adelaide
STL
St. Louis
AU$1,781 Return, found 4 days ago
AU$1,781
Return
found 4 days ago
Select Jetstar flight, departing Mon, 10 Aug from Adelaide to St. Louis, returning Mon, 17 Aug, priced at AU$1,781 found 4 days ago
United
Wed, 19 Aug - Wed, 26 Aug
ADL
Adelaide
STL
St. Louis
AU$1,887 Return, found 2 days ago
AU$1,887
Return
found 2 days ago
Select United flight, departing Wed, 19 Aug from Adelaide to St. Louis, returning Wed, 26 Aug, priced at AU$1,887 found 2 days ago
Qantas Airways
Wed, 12 Aug - Wed, 2 Sept
ADL
Adelaide
STL
St. Louis
AU$1,887 Return, found 4 days ago
AU$1,887
Return
found 4 days ago
Select Qantas Airways flight, departing Wed, 12 Aug from Adelaide to St. Louis, returning Wed, 2 Sept, priced at AU$1,887 found 4 days ago
Virgin Australia
Thu, 26 Nov - Thu, 3 Dec
ADL
Adelaide
STL
St. Louis
AU$2,129 Return, found 3 days ago
AU$2,129
Return
found 3 days ago
Select Virgin Australia flight, departing Thu, 26 Nov from Adelaide to St. Louis, returning Thu, 3 Dec, priced at AU$2,129 found 3 days ago
Air New Zealand
Wed, 19 Aug - Wed, 26 Aug
ADL
Adelaide
STL
St. Louis
AU$2,199 Return, found 2 days ago
AU$2,199
Return
found 2 days ago
Select Air New Zealand flight, departing Wed, 19 Aug from Adelaide to St. Louis, returning Wed, 26 Aug, priced at AU$2,199 found 2 days ago

Alternative airports near St. Louis

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

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from AU$1,792
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city centre20 min
Flights from AU$1,792

Frequently asked questions

How much does a flight from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.) cost?
You can find one-way and return flights from ADL to STL with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when ADL to STL ticket fares go up or down.
What is the cheapest month to fly from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The cheapest months to fly from ADL to STL are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
Enter ADL to STL and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
Qantas Airways is one of the cheapest airlines offering connecting return flights from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.), with prices starting from around AU$1722 for flights that can be booked for departure within the next year. These flights typically include a layover in Kingsford Smith Intl. (SYD). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
To find a cheap flight from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
There are around 20 connecting flights per day from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.). Some common connection points include Kingsford Smith Intl. (SYD), Tullamarine (MEL), and Hamad Intl. (DOH).
What is the earliest flight from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The earliest flight from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.) typically departs around 6:00 AM. This service is offered by airlines such as Qantas Airways and Air Canada. Please note that this is a seasonal service, active only in December. An early departure like this can be great for maximising your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
You'll find the most flights from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.) on a Saturday, with around 31 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Qantas Airways, Virgin Australia, and Jetstar.
What are the most popular departure times for flights from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The most popular departure times for flights from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.) are in the morning, from 6am to 9am. Many major carriers, including Qantas Airways, Jetstar and Virgin Australia, offer flights during this window. Many travellers prefer this time because it allows for an early start to their journey, getting them to their destination with plenty of time left in the day.
How long does it take to fly from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
There are no nonstop flights from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.). The distance between these two cities is approximately 15,696 kilometres. Flights with one stop typically take around 23 hours 48 minutes. If you're looking at flights with two or more stops, the travel time is usually longer, averaging about 24 hours 48 minutes. Keep in mind that these are average travel times, and your actual flight duration can vary depending on the specific route, layover times, and even factors like wind patterns.
Can you fly business or first class from Adelaide, SA (ADL) to St. Louis, MO (STL)?
Select the "Business class" and "First class" filters when looking for Adelaide, SA (ADL) to St. Louis, MO (STL) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight with Expedia?
It's easy to earn miles on a Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for St. Louis, MO (STL) from Adelaide, SA (ADL)?
If you're planning to travel to St. Louis from ADL, you can fly directly into Lambert-St. Louis Intl. (STL). Some flights may connect through major hubs like Kingsford Smith Intl. (SYD), San Francisco Intl. (SFO), or Brisbane, QLD (BNE) before reaching St. Louis. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.) at the last minute?
Typically, booking a last minute flight from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight and hotel package?
Securing a Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
If you booked your Adelaide, SA (ADL) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Adelaide
Destination airport
Lambert-St. Louis Intl.
Airlines serving
Air Canada, American Airlines, Qantas Airways, Qatar Airways, United
Return price
AU$1,767
Distance
15602 km

Book with confidence

Your quick guide to flights from Adelaide to St. Louis

Pick up great flights from Adelaide to St. Louis

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Adelaide to St. Louis. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Adelaide to St. Louis that take around hours.

Find cheap flights from Adelaide to St. Louis

From the great flight deals with prices currently ranging from AU$1,768 to AU$2,199, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Adelaide to St. Louis around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to St. Louis is normally in August.

Reasons to book your flight from Adelaide to St. Louis with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Adelaide to St. Louis across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to St. Louis right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Your quick guide to flights from Adelaide to St. Louis

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