Cheap flights from Arizona to St. Louis from $33
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Arizona to St. Louis departing on 9/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Frontier flights from Arizona to St. Louis
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How to get the cheapest flight ticket from Arizona to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to St. Louis?
In general, August is the cheapest month to fly from Arizona to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $278. The month of September is another great option to travel to St. Louis, with average flight prices from Arizona averaging around $292.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Tuesday when prices can be found for as low as $379. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $451. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest time of day to depart on your flight to St. Louis?
Flying to St. Louis from Arizona in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $341 when looking at flights departing in the afternoon. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $470 per ticket.
What is the cheapest Arizona to Lambert-St Louis flight route?
Fly from Phoenix Sky Harbor Intl to Lambert-St Louis for the best Arizona - Lambert-St Louis flight prices
How far in advance should I book a flight to St. Louis?
You are more likely to see cheaper flights to St. Louis from Arizona when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $376 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Arizona for as low as $304 on momondo.
What cabin class options are available on Arizona to Lambert-St Louis flights?
There are 3 cabin classes available to choose from on Arizona to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Arizona to Lambert-St Louis?
Frontier, Spirit Airlines, and Hawaiian Airlines are the most popular carriers operating from Arizona to Lambert-St Louis
What airlines fly to St. Louis?
American Airlines, Southwest and Frontier are the top three most popular airlines that fly to St. Louis from Arizona according to our data. American Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.
How many flights depart from Arizona to St. Louis on average per day?
The number of flights available between Arizona and St. Louis is 14 per day as of June 2025. The most frequent departure time is 12:00PM, with 41% of daily flights leaving in the afternoon.
How many flights depart from Arizona to St. Louis on average per week?
99 flights are operational weekly from Arizona to St. Louis as of June 2025. The most popular departure day for this route is Tue, with 19% of flights per week taking off on this day.
Cheap Arizona to St. Louis flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Arizona to St. Louis
When did momondo last update prices for flights from Arizona to Lambert-St Louis Airport?
Prices for flights from Arizona to Lambert-St Louis Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Arizona to Lambert-St Louis Airport?
There are 6 operators available for flights from Arizona to Lambert-St Louis Airport as of June 2025.
How old do you have to be to fly from Arizona to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Arizona to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Arizona to St. Louis?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Arizona to St. Louis is Boeing 737-800 Passenger/BBJ2 (winglets) (19.53% of total bookings). The next most popular plane models are Boeing 737-700 Passenger/BBJ1 (winglets) (17.85%), Boeing 737 MAX 8 (17.20%), and Boeing 737-800 (14.86%).
Best airlines flying from Arizona to St. Louis
Compare and see reviews for airlines that fly from Arizona to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $108 | Free Cancellation | Rating 5.9 3,296 reviews | |||
| PriceFrom $176 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $216 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $263 | Free Cancellation | Rating 7.4 8,838 reviews | |||
| PriceFrom $301 | Free Cancellation | Rating 8.0 4,276 reviews |
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Arizona to St. Louis?
Finding the right flight to St. Louis from Arizona is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.
Can I find flights from Arizona to St. Louis with flexible booking policies on momondo?
momondo does allow users to show only those flights to St. Louis from Arizona which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Arizona to St. Louis?
Once you have performed a search for Arizona to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Arizona to St. Louis right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Arizona to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.