$121+ Cheap flights from St. Louis to McAllen (STL - MFE)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MFE
May 10 — May 171
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to McAllen with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
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Cheapest flights from St. Louis to McAllenExplore the most affordable flight options available from St. Louis to McAllen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2026.
Explore the most affordable flight options available from St. Louis to McAllen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2026.
This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/24:44 pm
STL
- MFE
1 stop6h 15m
United Airlines
Tue 5/55:15 am
MFE
- STL
1 stop4h 15m
United Airlines
Deal found 4/8![United Airlines logo]()
$313
This American Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:27 pm
STL
- MFE
1 stop5h 03m
American Airlines
Wed 4/221:10 pm
MFE
- STL
1 stop4h 11m
American Airlines
Deal found 4/7![American Airlines logo]()
$335
This Delta deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:42 am
STL
- MFE
2 stops12h 17m
Delta
Tue 4/281:03 pm
MFE
- STL
2 stops10h 33m
Delta
Deal found 4/9![Delta logo]()
$345
This American Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:20 am
STL
- MFE
1 stop4h 42m
American Airlines
Tue 4/283:45 pm
MFE
- STL
1 stop7h 14m
American Airlines
Deal found 4/9![American Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:49 pm
STL
- MFE
1 stop6h 10m
United Airlines
Sat 4/255:15 pm
MFE
- STL
1 stop5h 13m
United Airlines
Deal found 4/7![United Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:45 am
STL
- MFE
2 stops10h 01m
United Airlines
Wed 4/295:17 am
MFE
- STL
1 stop4h 08m
United Airlines
Deal found 4/7![United Airlines logo]()
$375
Best flights from St. Louis to McAllenDiscover carefully curated flight deals from St. Louis to McAllen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 10, 2026.
Discover carefully curated flight deals from St. Louis to McAllen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 10, 2026.
This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/24:44 pm
STL
- MFE
1 stop6h 15m
United Airlines
Tue 5/55:15 am
MFE
- STL
1 stop4h 15m
United Airlines
Deal found 4/8![United Airlines logo]()
$313
This American Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:51 am
STL
- MFE
2 stops9h 00m
American Airlines
Sat 4/253:45 pm
MFE
- STL
2 stops8h 01m
American Airlines
Deal found 4/7![American Airlines logo]()
$345
This Delta deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:42 am
STL
- MFE
2 stops12h 17m
Delta
Tue 4/281:03 pm
MFE
- STL
2 stops10h 33m
Delta
Deal found 4/9![Delta logo]()
$345
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/254:49 pm
STL
- MFE
1 stop4h 59m
United Airlines
Sun 4/265:17 am
MFE
- STL
1 stop4h 08m
United Airlines
Deal found 4/7![United Airlines logo]()
$355
This American Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:33 pm
STL
- MFE
2 stops8h 07m
American Airlines
Tue 4/285:44 am
MFE
- STL
1 stop5h 53m
American Airlines
Deal found 4/9![American Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/211:02 pm
STL
- MFE
2 stops10h 57m
Delta
Wed 4/221:03 pm
MFE
- STL
2 stops10h 10m
Delta
Deal found 4/7![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:45 am
STL
- MFE
2 stops10h 01m
United Airlines
Wed 4/295:17 am
MFE
- STL
1 stop4h 08m
United Airlines
Deal found 4/7![United Airlines logo]()
$375
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:00 am
STL
- MFE
1 stop5h 30m
United Airlines
Sat 4/255:15 pm
MFE
- STL
1 stop5h 13m
United Airlines
Deal found 4/7![United Airlines logo]()
$385
Last-minute flights from St. Louis to McAllenDiscover last-minute flight deals from St. Louis to McAllen. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to McAllen. Data last updated April 10, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:27 pm
STL
- MFE
1 stop5h 03m
American Airlines
Wed 4/221:10 pm
MFE
- STL
1 stop4h 11m
American Airlines
Deal found 4/7![American Airlines logo]()
$335
This Delta deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:42 am
STL
- MFE
2 stops12h 17m
Delta
Tue 4/281:03 pm
MFE
- STL
2 stops10h 33m
Delta
Deal found 4/9![Delta logo]()
$345
This American Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:20 am
STL
- MFE
1 stop4h 42m
American Airlines
Tue 4/283:45 pm
MFE
- STL
1 stop7h 14m
American Airlines
Deal found 4/9![American Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:49 pm
STL
- MFE
1 stop6h 10m
United Airlines
Sat 4/255:15 pm
MFE
- STL
1 stop5h 13m
United Airlines
Deal found 4/7![United Airlines logo]()
$372
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:45 am
STL
- MFE
2 stops10h 01m
United Airlines
Wed 4/295:17 am
MFE
- STL
1 stop4h 08m
United Airlines
Deal found 4/7![United Airlines logo]()
$375
This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/24:44 pm
STL
- MFE
1 stop6h 15m
United Airlines
Tue 5/55:15 am
MFE
- STL
1 stop4h 15m
United Airlines
Deal found 4/8![United Airlines logo]()
$313
One-way flights from St. Louis to McAllenSearch for one-way flight options from St. Louis to McAllen. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
Search for one-way flight options from St. Louis to McAllen. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
This American Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/912:27 pm
STL
- MFE
1 stop5h 01m
American Airlines
Deal found 4/8![American Airlines logo]()
$121
This Delta deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:00 am
STL
- MFE
2 stops11h 26m
Delta
Deal found 4/9![Delta logo]()
$219
This American Airlines deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:12 am
STL
- MFE
1 stop7h 39m
American Airlines
Deal found 4/10![American Airlines logo]()
$224
This Delta deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/172:20 pm
STL
- MFE
2 stops9h 39m
Delta
Deal found 4/10![Delta logo]()
$229
This United Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:00 am
STL
- MFE
1 stop5h 26m
United Airlines
Deal found 4/6![United Airlines logo]()
$249
This American Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/35:51 am
STL
- MFE
2 stops9h 34m
American Airlines
Deal found 4/6![American Airlines logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/189:50 am
STL
- MFE
3 stops32h 20m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:23 pm
STL
- MFE
3 stops45h 47m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$561
This Kiwi.com deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:08 pm
STL
- MFE
3 stops25h 37m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$697
Find flight deals from St. Louis to McAllen
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to McAllen (MFE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $313 (United Airlines) |
One-way from | $121 (American Airlines) |
Popular in | July |
Cheapest in | October |
Average price | $458 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to McAllen that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 10, 2026.
Use the filters below to find and compare flights from St. Louis to McAllen that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisMcAllen
STL - MFE
STLMFE
Lambert-St Louis
Sat 5/2
4:44 pm-10:59 pm
1 stop6h 15m
McAllen Miller Intl
Tue 5/5
5:15 am-9:30 am
1 stop4h 15m
$313
St. LouisMcAllen
STL - MFE
STLMFE
Lambert-St Louis
Fri 4/24
5:51 am-2:51 pm
2 stops9h 00m
McAllen Miller Intl
Sat 4/25
3:45 pm-11:46 pm
2 stops8h 01m
$345
St. LouisMcAllen
STL - MFE
STLMFE
Lambert-St Louis
Fri 4/24
11:42 am-11:59 pm
2 stops12h 17m
McAllen Miller Intl
Tue 4/28
1:03 pm-11:36 pm
2 stops10h 33m
$345
Quickest round-trip
St. LouisMcAllen
STL - MFE
STLMFE
Lambert-St Louis
Sat 4/25
4:49 pm-9:48 pm
1 stop4h 59m
McAllen Miller Intl
Sun 4/26
5:17 am-9:25 am
1 stop4h 08m
$355
St. LouisMcAllen
STL - MFE
STLMFE
Lambert-St Louis
Fri 4/24
2:33 pm-10:40 pm
2 stops8h 07m
McAllen Miller Intl
Tue 4/28
5:44 am-11:37 am
1 stop5h 53m
$360
St. LouisMcAllen
STL - MFE
STLMFE
Lambert-St Louis
Sat 4/25
7:45 am-5:46 pm
2 stops10h 01m
McAllen Miller Intl
Wed 4/29
5:17 am-9:25 am
1 stop4h 08m
$375
St. LouisMcAllen
STL - MFE
STLMFE
Lambert-St Louis
Tue 4/21
1:02 pm-11:59 pm
2 stops10h 57m
McAllen Miller Intl
Wed 4/22
1:03 pm-11:13 pm
2 stops10h 10m
$377
St. LouisMcAllen
STL - MFE
STLMFE
Lambert-St Louis
Sat 4/25
6:00 am-11:30 am
1 stop5h 30m
McAllen Miller Intl
Sat 4/25
5:15 pm-10:28 pm
1 stop5h 13m
$385
Cheapest one-way
Quickest one-way
St. LouisMcAllen
STL - MFE
STLMFE
Lambert-St Louis
Sat 5/9
12:27 pm-5:28 pm
1 stop5h 01m
$121
St. LouisMcAllen
STL - MFE
STLMFE
Lambert-St Louis
Sat 4/18
6:00 am-5:26 pm
2 stops11h 26m
$219
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from St. Louis to McAllen
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to McAllen in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-McAllen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-McAllen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-McAllen flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-McAllen flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-McAllen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to McAllen
Have a flexible travel schedule? Discover the best time to fly to McAllen from St. Louis with our price prediction graph.
STL-MFE
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to McAllen
What is the cheapest month to book a flight from St. Louis to McAllen?
Currently, October is the cheapest month in which you can book a flight from St. Louis to McAllen (average of $196). Flying from St. Louis to McAllen in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from St. Louis to McAllen?
Reviews of airlines servicing McAllen
Get insights into the airlines that provide service to McAllen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to McAllen. Reviews last updated April 10, 2026.
Peruse reviews from past customers who have flown with American Airlines from St. Louis to McAllen to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.4
Overall
7.1
Crew
7.9
Boarding
7.5
Entertainment
6.8
Comfort
7.2
Reviews
1 / 20
8.0
ExcellentMonica,Nov 2025
JAC - DFW
Food
6.4
Overall
7.1
Crew
7.9
Boarding
7.5
Entertainment
6.8
Comfort
7.2
Reviews
1 / 20
8.0
ExcellentMonica,Nov 2025
JAC - DFW
Related info for your journey
Find useful and relevant information for your journey from St. Louis to McAllen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near McAllen?
Book flights to McAllen if you plan to visit one of these locationsPharr
Weslaco
Mission
Edinburg
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St. Louis and McAllen flights
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Top airline flying from St. Louis to McAllen
Discover the top airline that operate flights from St. Louis to McAllen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$240 | Average$431 | FlexibilityNo cancel fee | On-time71% |