Cheap Flights from Mesa (AZA) to St. Louis (STL)

Popular airlines from Phoenix - Mesa Gateway Airport (AZA) to St. Louis Lambert Intl. Airport (STL)

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Flights from Mesa (AZA) to St. Louis (STL)
Origin airport
Phoenix - Mesa Gateway
Destination airport
Lambert-St. Louis Intl.
Distance
1244 mi

Mesa to St. Louis Flights

The cheapest times to fly from Mesa 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 Mesa to St. Louis are during the month of . You can find some of the cheapest flights from Mesa to St. Louis with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Mesa 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 Mesa 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 Mesa to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Mesa 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 Mesa 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

How much does a flight from Phoenix - Mesa Gateway Airport (AZA) to Lambert-St. Louis Intl. Airport (STL) cost?
Discover the latest flight deals from AZA to STL by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from AZA to STL?
The cheapest flights from AZA to STL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Phoenix - Mesa Gateway Airport (AZA) to Lambert-St. Louis Intl. Airport (STL)?
You can't take a direct flight to Lambert-St. Louis Intl. Airport (STL) from Mesa, AZ (AZA-Phoenix - Mesa Gateway). However, you can seamlessly travel to St. Louis without any layovers by taking off from Sky Harbor Intl. Airport (PHX).
What is the cheapest airline that flies from AZA to STL?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from AZA to STL. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Phoenix - Mesa Gateway Airport (AZA) to Lambert-St. Louis Intl. Airport (STL)?
Direct flights from Phoenix - Mesa Gateway Airport (AZA) to Lambert-St. Louis Intl. Airport (STL) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from AZA to STL?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Phoenix - Mesa Gateway Airport (AZA) to Lambert-St. Louis Intl. Airport (STL)?
To avoid potential delays on the Phoenix - Mesa Gateway Airport (AZA) to Lambert-St. Louis Intl. Airport (STL) route, aim to fly before 3 PM. Later flights have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Phoenix - Mesa Gateway Airport (AZA) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Last-minute fares from AZA to STL are typically more expensive. To lock in the lowest rates, start searching for flights as early as possible. That being said, if you're flexible with your travel plans, it's possible to score a cheap fare right before your trip.
Is it cheaper to book an AZA to STL flight and hotel package?
You'll typically save money by booking an AZA to STL flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your preferred accommodations and flights, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Phoenix - Mesa Gateway Airport (AZA) to Lambert-St. Louis Intl. Airport (STL)?
Usually, it's possible to cancel or reschedule your AZA to STL flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.