STL - MFE

$121 Find Cheap Flights from St. Louis to McAllen

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to McAllen departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to McAllen

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to McAllen, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to McAllen, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$313
Typical prices: $451-$366
United Airlines
Sat 5/2Tue 5/5
STL - MFE • 1 stop
Cheapest one-way
$121
American Airlines
Sat 5/9
STL - MFE • 1 stop
Top airlines
United Airlines
Cheapest • from $313 (round-trip)
American Airlines
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between St. Louis and McAllen. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Houston (IAH)
Cheapest • Avg $290 (round-trip)
Dallas (DFW)
Shortest trip • 4h 57m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to McAllen!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from St. Louis to McAllen (STL-MFE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to McAllen that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to McAllen

Sat, May 2 - Tue, May 5
United Airlines Logo
4:44 pm - 10:59 pm
STL
-
MFE
6h 15m
1 stop
United Airlines Logo
5:15 am - 9:30 am
MFE
-
STL
4h 15m
1 stop
$313United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
9:00 am - 5:57 pm
STL
-
MFE
8h 57m
2 stops
United Airlines Logo
5:15 am - 9:30 am
MFE
-
STL
4h 15m
1 stop
$318United Airlines
Wed, May 13 - Fri, May 22
Delta Logo
7:00 am - 4:37 pm
STL
-
MFE
9h 37m
2 stops
Delta Logo
5:25 am - 4:15 pm
MFE
-
STL
10h 50m
2 stops
$332Delta
Tue, Apr 21 - Wed, Apr 22
American Airlines Logo
12:27 pm - 5:30 pm
STL
-
MFE
5h 03m
1 stop
American Airlines Logo
1:10 pm - 5:21 pm
MFE
-
STL
4h 11m
1 stop
$335American Airlines
Tue, Apr 21 - Wed, Apr 22
American Airlines Logo
5:51 am - 2:51 pm
STL
-
MFE
9h 00m
2 stops
American Airlines Logo
3:45 pm - 10:59 pm
MFE
-
STL
7h 14m
1 stop
$340American Airlines
Fri, Apr 24 - Sat, Apr 25
American Airlines Logo
5:51 am - 2:51 pm
STL
-
MFE
9h 00m
2 stops
American Airlines Logo
3:45 pm - 11:46 pm
MFE
-
STL
8h 01m
2 stops
$345American Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
10:09 am - 5:46 pm
STL
-
MFE
7h 37m
1 stop
United Airlines Logo
5:17 am - 9:25 am
MFE
-
STL
4h 08m
1 stop
$352United Airlines
Sat, Apr 25 - Sun, Apr 26
United Airlines Logo
4:49 pm - 9:48 pm
STL
-
MFE
4h 59m
1 stop
United Airlines Logo
5:17 am - 9:25 am
MFE
-
STL
4h 08m
1 stop
$355United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
7:45 am - 4:24 pm
STL
-
MFE
8h 39m
2 stops
United Airlines Logo
5:17 am - 9:25 am
MFE
-
STL
4h 08m
1 stop
$357United Airlines
Sat, Apr 25 - Sun, Apr 26
United Airlines Logo
7:45 am - 5:46 pm
STL
-
MFE
10h 01m
2 stops
United Airlines Logo
5:17 am - 9:25 am
MFE
-
STL
4h 08m
1 stop
$360United Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to McAllen flights

Get data-powered insights and trends into flights from St. Louis to McAllen to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to McAllen?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to McAllen departing in May.
Find deals

Good to know

Low seasonOctober
Cheapest flight$121
Best time to beat the crowds with an average 53% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from St. Louis to McAllen

When to book flights from St. Louis to McAllen

Are your dates flexible? Find out the best times to travel from St. Louis to McAllen based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to McAllen

  • What is the cheapest flight from St. Louis to McAllen?

    In the last 3 days, the lowest price for a flight from St. Louis to McAllen was $121 for a one-way ticket and $313 for a round-trip.

  • Do I need a passport to fly between St. Louis and McAllen?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from St. Louis to McAllen?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at McAllen, also known as McAllen Miller Intl.

  • Which aircraft models fly most regularly from St. Louis to McAllen?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to McAllen?

    oneworld is the only airline alliance operating flights between St. Louis and McAllen.

  • How does KAYAK find such low prices on flights from St. Louis to McAllen?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to McAllen.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to McAllen?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to McAllen from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to McAllen?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to McAllen with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and MFE can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to McAllen?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to McAllen from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from St. Louis to McAllen

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to McAllen. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to McAllen? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11563 reviews
7.2Comfort
7.9Crew
7.5Boarding
6.9Entertainment
6.4Food
Airline reviews

Human interaction. Thought there would be more service-even a smile would have been nice.

6.0 GoodMonica, Apr 2026
IAD - DFW
Read more American Airlines reviews

Human interaction. Thought there would be more service-even a smile would have been nice.

It was canceled at the last minute. While I was literally at the airport. Messed my entire trip up.

Moved to earlier flight which unexpectedly had maintenance issues initially indicated as quick fix to ultimately plane changes. Moved back to original flight, also delayed. In all cases customer updates and communication very unclear, no updates on drivers for delays.

Better snacks but flight and crew were amazing on this flight

It was the most un-special flight experience in my life.

The flight attendant in business class was excellent! Professional, friendly and attentive.

Terrible planning. And even worse gate agents. Absolutely rude behavior.

Rough flight No beverage service due to turbulence Bottom Seat cushion was non existent

They put me on an earlier and I got home sooner

Not good. One of my luggage is missing. And until now they can’t find it

Everything you need to know for your flight from St. Louis to McAllen

Information on your arrival and departure airports

St. Louis (STL)
McAllen (MFE)