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Cheap Flights to St Louis Airport

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Compare St Louis Airport flights across hundreds of providers

Find the cheapest month or even day of the year to fly

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Flight deals to St Louis

Looking for a cheap last-minute deal or the best return flight to St Louis? Find the lowest prices on one-way and return tickets right here.
St Louis.$777 per passenger.Departing Thu, 18 Sep.One-way flight with United.Outbound indirect flight with United, departs from Sydney on Thu, 18 Sep, arriving in St Louis.Price includes taxes and charges.From $777, select.
St Louis.$797 per passenger.Departing Mon, 28 Jul.One-way flight with United.Outbound indirect flight with United, departs from Melbourne Tullamarine on Mon, 28 Jul, arriving in St Louis.Price includes taxes and charges.From $797, select.
St Louis.$808 per passenger.Departing Sat, 30 Aug.One-way flight with United.Outbound indirect flight with United, departs from Melbourne Tullamarine on Sat, 30 Aug, arriving in St Louis.Price includes taxes and charges.From $808, select.
St Louis.$826 per passenger.Departing Mon, 9 Jun.One-way flight with United.Outbound indirect flight with United, departs from Sydney on Mon, 9 Jun, arriving in St Louis.Price includes taxes and charges.From $826, select.
St Louis.$826 per passenger.Departing Fri, 30 May.One-way flight with United.Outbound indirect flight with United, departs from Sydney on Fri, 30 May, arriving in St Louis.Price includes taxes and charges.From $826, select.
St Louis.$835 per passenger.Departing Sun, 21 Dec.One-way flight with United.Outbound indirect flight with United, departs from Sydney on Sun, 21 Dec, arriving in St Louis.Price includes taxes and charges.From $835, select.
St Louis.$1,278 per passenger.Departing Wed, 22 Oct.One-way flight with Qantas.Outbound indirect flight with Qantas, departs from Brisbane on Wed, 22 Oct, arriving in St Louis.Price includes taxes and charges.From $1,278, select.
St Louis.$1,417 per passenger.Departing Sat, 14 Mar.One-way flight with Singapore Airlines.Outbound indirect flight with Singapore Airlines, departs from Adelaide on Sat, 14 Mar, arriving in St Louis.Price includes taxes and charges.From $1,417, select.

Find the cheapest time to fly to St Louis

Flexible on travel dates? Find the cheapest month – or even day – to fly to St Louis.
May
from $826
Jun
from $826
Jul
from $797
Aug
from $808
Sep
from $777
Oct
from $1,278
Nov
Find prices
Dec
from $835
Jan
from $1,482
Feb
Find prices
Mar
from $1,417
Apr
Find prices

Airports near St Louis

Compare routes to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier.

Frequently asked questions

Currently, there are no airlines that fly direct to St Louis. But we found flights with one or more stops from $1,273.
The cheapest month to fly to St Louis is usually July.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
No airlines currently offer direct flights between Australia and United States. Most routes have one or more stops.
The best price we found for a return flight to St Louis is $1,273. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
After crunching the numbers on our flight calendar, we found that the cheapest date to fly to St Louis Airport is Thursday, 17 July 2025.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air Canada offers the cheapest flight tickets to St Louis.

Flying to St Louis

The things to know before you go.
Cheapest flight found$777
Cheapest month to flySeptember

How to find cheap flights to Lambert-St. Louis International Airport (STL)

  • At the moment, $777 is the cheapest price for a one-way flight to Lambert-St. Louis International Airport. Or you can reserve a return plane ticket to STL for $1,273.

  • Book at the perfect time with Price Alerts. You'll get an email or a notification through the app if the price of tickets to STL changes.

  • To get the best price on tickets to St Louis, where Lambert-St. Louis International Airport is located, book six months ahead. That's the general recommendation for scoring the best deals.

  • Select the 'Add nearby airports' filter and broaden your search for cheap flights to St Louis. This will show you every airport around your departure and destination points.

  • Search for plane tickets to Lambert-St. Louis International Airport that have one stop or more. Taking the scenic route can be cheaper. After your results appear, select the 'Stops' filter to see your options.

Best time to go to St Louis

  • The cheapest month to get on a flight to St Louis is typically May.

  • To find the month or even day with the cheapest flights to STL, use the 'Whole month' tool. If you're flexible with your dates, keep an eye out for the green prices on the calendar — they show you the lowest fares that are available.

  • If you'd love to experience St Louis at its busiest, lock in your flights to STL for July. Being on holiday during high seasons typically means more to do and see than at other times.

  • Travel in April if you prefer to travel with fewer crowds. This is the quietest period of the year and also when plane tickets to St Louis are typically less expensive.

  • Check the weather conditions before you go. July is the warmest time of year in St Louis, averaging between 17ºC and 33ºC.

  • Temperatures are at their lowest in January, when they range from -8ºC to 7ºC.

Travelling to Lambert-St. Louis International Airport (STL): what you need to know

Getting to central St Louis from Lambert-St. Louis International Airport (STL)

St Louis highlights

The Gateway Arch

  • Put this at the top of your to-do list after stepping off your flight to Lambert-St. Louis International Airport. You'll find it around 5 kilometres east of the city centre.

Forest Park

  • Another major sight, this attraction is roughly 5 kilometres west of central St Louis.

St. Louis Zoo

  • Find your way to this highlight next. St. Louis Zoo is around 5 kilometres west of the centre and is one more key St Louis experience.

Complete your trip with a St Louis car hire

  • Choose one of our car rentals in St Louis and explore the sights at your own speed. Easily compare rates in one place to find the perfect ride after booking your hotel and cheap flight to Lambert-St. Louis International Airport.

More travel options

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.