$95 Cheap Flights from Mobile (MOB) to St. Louis (STL)

Popular airlines from Mobile Regional Airport (MOB) to St. Louis Lambert Intl. Airport (STL)

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Find available prices by choosing your travel dates.

Cheap Flights from Mobile to St. Louis (MOB-STL)

Prices were available within the past 7 days and start at $95 for one-way flights and $212 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Delta
Delta
Delta
Delta
American Airlines
United
American Airlines
Delta
American Airlines
Flights from Mobile (MOB) to St. Louis (STL)
Origin airport
Mobile Regional
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$212
Distance
569 mi

Mobile to St. Louis Flights

The cheapest times to fly from Mobile to St. Louis

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Mobile to St. Louis are during the month of May. You can find some of the cheapest flights from Mobile to St. Louis with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Mobile to St. Louis

Sunday is one of the best days to book for cheap flights from Mobile to St. Louis: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Mobile to St. Louis

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Mobile to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $95 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Mobile to St. Louis flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Mobile to St. Louis airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

Is it cheaper to buy a plane ticket from Mobile Regional Airport (MOB) to STL last minute?
Being the spontaneous type is a wonderful way to travel the globe, but it’s not always the ideal way to score a cheap fare. Think about booking your MOB to STL trip ahead of time rather than leaving it until the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. Leave all that spontaneity for when you reach your destination!
What airports do you fly into for St. Louis from Mobile?
Lambert-St. Louis Intl. Airport (STL), Spirit of St. Louis Airport (SUS) and St. Louis Downtown Airport (CPS) are your options when jetting from Mobile to St. Louis. Around 12 mi northwest of downtown St. Louis, Lambert-St. Louis Intl. Airport (STL) is the city’s principal hub. Take into account factors like flight arrival and departure times and the distance to your hotel before picking your airport. Busch Stadium and Gateway Arch are a couple of fantastic attractions to explore when you get to your destination.
Can I change the date of my flight from MOB to Lambert Field?
Quickly and easily make changes to your Mobile Regional Airport (MOB) to Lambert Field flight through the Expedia Trips portal. Before you make any amendments, look over the rules and restrictions in your itinerary to find out what the carrier will allow you to do and if any charges apply. Some airlines have a change fee per person, on top of any difference in fares. But if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also check out our Customer Service portal to find the answers to your questions and to connect with our Virtual Agent.

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