$495 Cheap Flights from Yuma (YUM) to St. Louis (STL)

View $495 flight on Fri, Nov 7, 2025Opens in a new window

Popular airlines from Yuma Intl. Airport (YUM) to St. Louis Lambert Intl. Airport (STL)

Cheap Flights from Yuma to St. Louis (YUM-STL)

Prices were available within the past 7 days and start at $495 for one-way flights and $704 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Dec 28 - Fri, Jan 2
YUM
Yuma
STL
St. Louis
$704 Roundtrip, found 11 hours ago
$704
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Sun, Dec 28 from Yuma to St. Louis, returning Fri, Jan 2, priced at $704 found 11 hours ago
American Airlines
Sun, Dec 28 - Fri, Jan 2
YUM
Yuma
STL
St. Louis
$709 Roundtrip, found 2 days ago
$709
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Dec 28 from Yuma to St. Louis, returning Fri, Jan 2, priced at $709 found 2 days ago
American Airlines
Sun, Dec 28 - Fri, Jan 2
YUM
Yuma
STL
St. Louis
$735 Roundtrip, found 11 hours ago
$735
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Sun, Dec 28 from Yuma to St. Louis, returning Fri, Jan 2, priced at $735 found 11 hours ago
American Airlines
Sun, Dec 28 - Fri, Jan 2
YUM
Yuma
STL
St. Louis
$769 Roundtrip, found 11 hours ago
$769
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Sun, Dec 28 from Yuma to St. Louis, returning Fri, Jan 2, priced at $769 found 11 hours ago
American Airlines
Sun, Dec 28 - Fri, Jan 2
YUM
Yuma
STL
St. Louis
$774 Roundtrip, found 2 days ago
$774
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Dec 28 from Yuma to St. Louis, returning Fri, Jan 2, priced at $774 found 2 days ago
American Airlines
Sun, Dec 28 - Fri, Jan 2
YUM
Yuma
STL
St. Louis
$800 Roundtrip, found 11 hours ago
$800
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Sun, Dec 28 from Yuma to St. Louis, returning Fri, Jan 2, priced at $800 found 11 hours ago
American Airlines
Sun, Dec 28 - Fri, Jan 2
YUM
Yuma
STL
St. Louis
$801 Roundtrip, found 11 hours ago
$801
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Sun, Dec 28 from Yuma to St. Louis, returning Fri, Jan 2, priced at $801 found 11 hours ago
American Airlines
Sun, Dec 28 - Fri, Jan 2
YUM
Yuma
STL
St. Louis
$804 Roundtrip, found 11 hours ago
$804
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Sun, Dec 28 from Yuma to St. Louis, returning Fri, Jan 2, priced at $804 found 11 hours ago
American Airlines
Sun, Dec 28 - Fri, Jan 2
YUM
Yuma
STL
St. Louis
$807 Roundtrip, found 11 hours ago
$807
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Sun, Dec 28 from Yuma to St. Louis, returning Fri, Jan 2, priced at $807 found 11 hours ago
American Airlines
Sun, Dec 28 - Fri, Jan 2
YUM
Yuma
STL
St. Louis
$809 Roundtrip, found 2 days ago
$809
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Dec 28 from Yuma to St. Louis, returning Fri, Jan 2, priced at $809 found 2 days ago

Frequently asked questions

How much does a flight from Yuma Intl. Airport (YUM) to Lambert-St. Louis Intl. Airport (STL) cost?
Get a cheap one-way flight from $495 or cheap return flight from $704 from Yuma Intl. Airport (YUM) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Yuma Intl. Airport (YUM) to Lambert-St. Louis Intl. Airport (STL)?
December is the cheapest month to fly from YUM to STL. Traveling during quieter months is often the key to finding a great deal.
What is the cheapest airline that flies from Yuma Intl. Airport (YUM) to Lambert-St. Louis Intl. Airport (STL)?
To find the cheapest airline that'll fly you from YUM to STL, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Yuma Intl. Airport (YUM) to Lambert-St. Louis Intl. Airport (STL)?
Direct flights from Yuma Intl. Airport (YUM) 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 filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from YUM to STL?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on a number of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Yuma Intl. Airport (YUM) to Lambert-St. Louis Intl. Airport (STL)?
Opt for a flight from Yuma Intl. Airport (YUM) to Lambert-St. Louis Intl. Airport (STL) that leaves before 3 PM to reduce the likelihood of delays. Later departures are on average 22% more likely to be canceled.**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 Yuma Intl. Airport (YUM) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Holding off until right before your break to book a flight from YUM to STL often results in higher prices. While you might find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary to maximize your chances of getting a bargain.
Is it cheaper to book a YUM to STL flight and hotel package?
Compared with arranging hotels and flights separately, booking a YUM to STL flight and hotel package with Expedia could result in significant savings. Better still, having everything in one convenient place takes the hassle out of travel planning. Simply secure your flights and choose from our extensive range of hotels, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Yuma Intl. Airport (YUM) to Lambert-St. Louis Intl. Airport (STL)?
It's usually possible to reschedule or cancel your YUM to STL flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Yuma Intl.
Destination airport
Lambert-St. Louis Intl.
Roundtrip price
$703
Distance
1418 mi

Book with confidence

Book with confidence

Yuma to St. Louis Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Yuma 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 Yuma 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 Yuma to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $495 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 Yuma 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 Yuma 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.

 

Yuma to St. Louis Flights

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*Available to One Key members.