Title: Cheap Flights from Jacksonville to St. Louis (JAX to STL) - Expedia.co.uk ![](https://images.trvl-media.com/place/178309/1d118261-eb93-42dd-aeef-5f82e1f037e8.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178309/1d118261-eb93-42dd-aeef-5f82e1f037e8.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Jacksonville (JAX) to St. Louis (STL) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Jacksonville International Airport (JAX) to Lambert-St. Louis International Airport (STL) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:jax,to:stl,departure:14/11/2025TANYT&leg2=from:stl,to:jax,departure:21/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:jax,to:stl,departure:14/11/2025TANYT&leg2=from:stl,to:jax,departure:21/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.co.uk/Flights-Search?leg1=from:jax,to:stl,departure:14/11/2025TANYT&leg2=from:stl,to:jax,departure:21/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:jax,to:stl,departure:14/11/2025TANYT&leg2=from:stl,to:jax,departure:21/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Find the cheapest month to fly from Jacksonville (JAX) to St. Louis (STL) ### August is typically the cheapest month to fly From £115 - £332 per traveller. ## Frequently asked questions ### How much is a flight from JAX to Lambert-St. Louis Intl. Airport (STL)? > Start packing your bags, because round-trip flights between Jacksonville Intl. Airport (JAX) and St. Louis Lambert International Airport start from . That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can move quickly, so book now to nab the best deal. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from JAX to Lambert-St. Louis Intl. Airport (STL)? > Each airline has its own terms and conditions. If you decide to cancel your escape, head to our [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033). ### How do I find cheap flights from JAX to STL that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Jacksonville Intl. Airport to Lambert Field flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from Jacksonville Intl. Airport to Lambert-St. Louis Intl. Airport (STL)? > With a flight distance of 1,200 kilometres, it's just a short hop from Jacksonville Intl. Airport (JAX) to Lambert Field. It might be a quick one, but it's still worth bringing along a good book to read. ### Which airlines fly direct from Jacksonville Intl. Airport to STL? > Operating 30 monthly flights, Southwest Airlines (WN) is a popular choice when flying directly from Jacksonville Intl. Airport (JAX) to Lambert Field. ### Are Jacksonville Intl. Airport to Lambert Field flight tickets cheaper when they're purchased at the last minute? > Late planners can sometimes find a bargain, with some of the cheapest fares from Jacksonville Intl. Airport (JAX) to St. Louis Lambert International Airport surfacing a few weeks before the date of departure. If you'd rather book ahead of time, Expedia compares and updates all the best flight deals regularly — as early as 12 months in advance in some cases. It does depend on the carrier though, as not all airlines release prices so far in advance. ## Travel information | Origin airport | Jacksonville Intl. | | --- | --- | | Destination airport | Lambert-St. Louis Intl. | | Distance | 1205 km | | Average flight time | 2 hours 39 mins | ## Book with confidence ### Compare flights from Jacksonville to St. Louis easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Jacksonville to St. Louis. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Lambert-St. Louis Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Jacksonville Intl. to Lambert-St. Louis Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Jacksonville Intl. (JAX) to Lambert-St. Louis Intl. (STL) The easiest way to view the best deals on flights from Jacksonville to St. Louis today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Jacksonville Intl. to Lambert-St. Louis Intl. start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Jacksonville and St. Louis - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Jacksonville to St. Louis flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Jacksonville Intl. to Lambert-St. Louis Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. 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