$353 Cheap Flights from St. Louis (STL) to Los Mochis (LMM)

View $353 flight on Mon, Jan 26, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Los Mochis, Sinaloa (LMM-Federal del Valle del Fuerte Intl.)

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Cheap Flights from St. Louis to Los Mochis (STL-LMM)

Prices were available within the past 7 days and start at $353 for one-way flights and $607 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aeromexico
Tue, Jan 27 - Tue, Feb 3
STL
St. Louis
LMM
Los Mochis
$607 Roundtrip, found 1 day ago
$607
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Tue, Jan 27 from St. Louis to Los Mochis, returning Tue, Feb 3, priced at $607 found 1 day ago
Aeromexico
Tue, Jan 27 - Tue, Feb 3
STL
St. Louis
LMM
Los Mochis
$607 Roundtrip, found 1 day ago
$607
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Tue, Jan 27 from St. Louis to Los Mochis, returning Tue, Feb 3, priced at $607 found 1 day ago
Aeromexico
Thu, Jan 22 - Sat, Jan 31
STL
St. Louis
LMM
Los Mochis
$627 Roundtrip, found 1 day ago
$627
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Thu, Jan 22 from St. Louis to Los Mochis, returning Sat, Jan 31, priced at $627 found 1 day ago
Aeromexico
Sat, Jan 24 - Sat, Jan 31
STL
St. Louis
LMM
Los Mochis
$647 Roundtrip, found 1 day ago
$647
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Sat, Jan 24 from St. Louis to Los Mochis, returning Sat, Jan 31, priced at $647 found 1 day ago
Aeromexico
Tue, Jan 27 - Sat, Jan 31
STL
St. Louis
LMM
Los Mochis
$649 Roundtrip, found 1 day ago
$649
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Tue, Jan 27 from St. Louis to Los Mochis, returning Sat, Jan 31, priced at $649 found 1 day ago
Aeromexico
Tue, Jan 27 - Fri, Feb 6
STL
St. Louis
LMM
Los Mochis
$662 Roundtrip, found 1 day ago
$662
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Tue, Jan 27 from St. Louis to Los Mochis, returning Fri, Feb 6, priced at $662 found 1 day ago
Aeromexico
Sun, Jan 25 - Sat, Jan 31
STL
St. Louis
LMM
Los Mochis
$669 Roundtrip, found 1 day ago
$669
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Sun, Jan 25 from St. Louis to Los Mochis, returning Sat, Jan 31, priced at $669 found 1 day ago
Aeromexico
Sat, Jan 24 - Fri, Feb 6
STL
St. Louis
LMM
Los Mochis
$682 Roundtrip, found 1 day ago
$682
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Sat, Jan 24 from St. Louis to Los Mochis, returning Fri, Feb 6, priced at $682 found 1 day ago
Aeromexico
Tue, Jan 27 - Thu, Feb 5
STL
St. Louis
LMM
Los Mochis
$691 Roundtrip, found 1 day ago
$691
Roundtrip
found 1 day ago
Select Aeromexico flight, departing Tue, Jan 27 from St. Louis to Los Mochis, returning Thu, Feb 5, priced at $691 found 1 day ago
Delta
Mon, Jan 26 - Wed, Feb 4
STL
St. Louis
LMM
Los Mochis
$703 Roundtrip, found 1 day ago
$703
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Jan 26 from St. Louis to Los Mochis, returning Wed, Feb 4, priced at $703 found 1 day ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Federal del Valle del Fuerte Intl. Airport (LMM) cost?
Get a cheap one-way flight from $353 or cheap return flight from $607 from Lambert-St. Louis Intl. Airport (STL) to Federal del Valle del Fuerte Intl. Airport (LMM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Federal del Valle del Fuerte Intl. Airport (LMM)?
The cheapest month to fly from STL to LMM is January, when demand is low. Off-peak months are usually when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Federal del Valle del Fuerte Intl. Airport (LMM)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest STL to LMM flight.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Federal del Valle del Fuerte Intl. Airport (LMM)?
You'll need to hop on a flight with a layover when traveling from Lambert-St. Louis Intl. Airport (STL) to Federal del Valle del Fuerte Intl. Airport (LMM). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from STL to LMM?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Federal del Valle del Fuerte Intl. Airport (LMM)?
Book a flight from Lambert-St. Louis Intl. Airport (STL) to Federal del Valle del Fuerte Intl. Airport (LMM) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time 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 Lambert-St. Louis Intl. Airport (STL) to Federal del Valle del Fuerte Intl. Airport (LMM) last-minute?
Booking your flight from STL to LMM just before your getaway is generally more expensive. But if there's some wiggle room with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a STL to LMM flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to LMM flight and hotel package with Expedia could result in significant savings. Better still, having everything in one place will take the stress out of planning your trip. Just pick your flights and select from our extensive range of hotels, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Federal del Valle del Fuerte Intl. Airport (LMM)?
If you booked your STL to LMM flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Federal del Valle del Fuerte Intl.
Roundtrip price
$606
Distance
1412 mi

Book with confidence

Book with confidence

St. Louis to Los Mochis Flights

The cheapest times to fly from St. Louis to Los Mochis

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 St. Louis to Los Mochis are during the month of January. You can find some of the cheapest flights from St. Louis to Los Mochis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Los Mochis

Sunday is one of the best days to book for cheap flights from St. Louis to Los Mochis: 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 St. Louis to Los Mochis

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 St. Louis to Los Mochis in 2025. You can also book with separate airlines for your outbound and return journeys, from $353 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 St. Louis to Los Mochis 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 St. Louis to Los Mochis 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.

 

St. Louis to Los Mochis Flights

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*Available to One Key members.