$559 Cheap Flights from St. Louis (STL) to Reynosa (REX)

View $559 flight on Tue, Nov 11, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Reynosa, Tamaulipas (REX-General Lucio Blanco Intl.)

Cheap Flights from St. Louis to Reynosa (STL-REX)

Prices were available within the past 7 days and start at $559 for one-way flights and $1,024 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aeromexico
Tue, Nov 11 - Mon, Nov 24
STL
St. Louis
REX
Reynosa
$1,024 Roundtrip, found 3 days ago
$1,024
Roundtrip
found 3 days ago
Select Aeromexico flight, departing Tue, Nov 11 from St. Louis to Reynosa, returning Mon, Nov 24, priced at $1,024 found 3 days ago
Aeromexico
Tue, Nov 18 - Thu, Dec 4
STL
St. Louis
REX
Reynosa
$1,044 Roundtrip, found 3 days ago
$1,044
Roundtrip
found 3 days ago
Select Aeromexico flight, departing Tue, Nov 18 from St. Louis to Reynosa, returning Thu, Dec 4, priced at $1,044 found 3 days ago
Aeromexico
Thu, Nov 6 - Mon, Nov 24
STL
St. Louis
REX
Reynosa
$1,156 Roundtrip, found 3 days ago
$1,156
Roundtrip
found 3 days ago
Select Aeromexico flight, departing Thu, Nov 6 from St. Louis to Reynosa, returning Mon, Nov 24, priced at $1,156 found 3 days ago
Aeromexico
Tue, Nov 11 - Wed, Nov 26
STL
St. Louis
REX
Reynosa
$1,241 Roundtrip, found 3 days ago
$1,241
Roundtrip
found 3 days ago
Select Aeromexico flight, departing Tue, Nov 11 from St. Louis to Reynosa, returning Wed, Nov 26, priced at $1,241 found 3 days ago
Aeromexico
Wed, Nov 12 - Mon, Nov 24
STL
St. Louis
REX
Reynosa
$1,304 Roundtrip, found 3 days ago
$1,304
Roundtrip
found 3 days ago
Select Aeromexico flight, departing Wed, Nov 12 from St. Louis to Reynosa, returning Mon, Nov 24, priced at $1,304 found 3 days ago
Aeromexico
Tue, Nov 25 - Fri, Dec 5
STL
St. Louis
REX
Reynosa
$1,324 Roundtrip, found 3 days ago
$1,324
Roundtrip
found 3 days ago
Select Aeromexico flight, departing Tue, Nov 25 from St. Louis to Reynosa, returning Fri, Dec 5, priced at $1,324 found 3 days ago
Aeromexico
Tue, Nov 11 - Sat, Nov 22
STL
St. Louis
REX
Reynosa
$1,329 Roundtrip, found 3 days ago
$1,329
Roundtrip
found 3 days ago
Select Aeromexico flight, departing Tue, Nov 11 from St. Louis to Reynosa, returning Sat, Nov 22, priced at $1,329 found 3 days ago
Aeromexico
Thu, Nov 6 - Wed, Nov 26
STL
St. Louis
REX
Reynosa
$1,337 Roundtrip, found 3 days ago
$1,337
Roundtrip
found 3 days ago
Select Aeromexico flight, departing Thu, Nov 6 from St. Louis to Reynosa, returning Wed, Nov 26, priced at $1,337 found 3 days ago
Aeromexico
Mon, Nov 10 - Mon, Nov 24
STL
St. Louis
REX
Reynosa
$1,344 Roundtrip, found 3 days ago
$1,344
Roundtrip
found 3 days ago
Select Aeromexico flight, departing Mon, Nov 10 from St. Louis to Reynosa, returning Mon, Nov 24, priced at $1,344 found 3 days ago
Aeromexico
Sat, Nov 15 - Thu, Dec 4
STL
St. Louis
REX
Reynosa
$1,349 Roundtrip, found 3 days ago
$1,349
Roundtrip
found 3 days ago
Select Aeromexico flight, departing Sat, Nov 15 from St. Louis to Reynosa, returning Thu, Dec 4, priced at $1,349 found 3 days ago

Alternative airports near Reynosa

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Miller Intl. MFE. Cheapest option available. Average driving time to city center is 1 hour 3 minutes. Flights from $314
MFE
Miller Intl.
Cheapest
Average driving time to city center1 h 3 min
Flights from $314

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to General Lucio Blanco Intl. Airport (REX) cost?
Get a cheap one-way flight from $559 or cheap return flight from $1,024 from Lambert-St. Louis Intl. Airport (STL) to General Lucio Blanco Intl. Airport (REX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to General Lucio Blanco Intl. Airport (REX)?
The cheapest month to fly from STL to REX is November, when there's less demand. Off-peak months are generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to General Lucio Blanco Intl. Airport (REX)?
To find the cheapest airline that'll fly you from STL to REX, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to General Lucio Blanco Intl. Airport (REX)?
There are no daily direct flights departing from Lambert-St. Louis Intl. Airport (STL) to General Lucio Blanco Intl. Airport (REX). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from STL to REX?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary 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 General Lucio Blanco Intl. Airport (REX)?
Select a flight from Lambert-St. Louis Intl. Airport (STL) to General Lucio Blanco Intl. Airport (REX) 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 General Lucio Blanco Intl. Airport (REX) last-minute?
Booking your ticket from STL to REX right before your trip is generally more expensive. However, if there's some wiggle room with your itinerary, you could score a cheap last-minute fare.
Is it cheaper to book a STL to REX flight and hotel package?
Compared with arranging flights and hotels separately, booking a STL to REX flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one easy place will take the hassle out of travel planning. Just secure your flights and select from our wide range of stays, then personalize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to General Lucio Blanco Intl. Airport (REX)?
In most instances, you're able to cancel or reschedule your STL to REX flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you want more details, go to our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
General Lucio Blanco Intl.
Roundtrip price
$1,023
Distance
990 mi

Book with confidence

St. Louis to Reynosa Flights

The cheapest times to fly from St. Louis to Reynosa

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

 

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

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

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 Reynosa in 2025. You can also book with separate airlines for your outbound and return journeys, from $559 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 Reynosa 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 Reynosa 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 Reynosa Flights

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*Available to One Key members.