$286+ Cheap flights from St. Louis to McAllen (STL - MFE)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MFE
Oct 12 — Oct 191
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to McAllen with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to McAllen
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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 September 12, 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 September 12, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 11/102:55 pm -
1 stop7h 03m
Sun 11/155:00 am -
1 stop5h 02m
Deal found 9/8![United Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/295:40 am -
1 stop4h 52m
Mon 11/24:21 pm -
1 stop7h 12m
Deal found 9/10![American Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 9/7. 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.
Thu 10/292:22 pm -
2 stops9h 37m
Mon 11/212:46 pm -
2 stops11h 08m
Deal found 9/7![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:15 am -
1 stop4h 44m
Sun 9/277:00 am -
1 stop7h 10m
Deal found 9/9![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:53 am -
2 stops11h 06m
Sat 9/265:20 pm -
1 stop5h 10m
Deal found 9/9![United Airlines logo]()
$384
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 10/1010:12 am -
1 stop7h 19m
Sun 10/114:37 pm -
1 stop5h 22m
Deal found 9/7![American Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:30 am -
1 stop7h 34m
Sat 11/75:15 pm -
1 stop5h 11m
Deal found 9/10![United Airlines logo]()
$401
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/1011:35 am -
2 stops10h 23m
Sun 10/115:20 pm -
1 stop5h 10m
Deal found 9/7![United Airlines logo]()
$404
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:35 am -
1 stop4h 59m
Sat 10/107:00 am -
1 stop7h 10m
Deal found 9/9![United Airlines logo]()
$405
This Delta deal was found by Cheapflights users on 9/9. 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.
Wed 9/236:00 am -
2 stops10h 37m
Sat 9/265:20 am -
2 stops9h 29m
Deal found 9/9![Delta logo]()
$409
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 September 12, 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 September 12, 2026.
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/295:40 am -
1 stop4h 52m
Mon 11/24:21 pm -
1 stop7h 12m
Deal found 9/10![American Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 9/9. 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.
Thu 10/292:22 pm -
2 stops9h 37m
Mon 11/212:46 pm -
2 stops11h 08m
Deal found 9/9![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/266:00 am -
2 stops9h 59m
Wed 9/305:20 am -
1 stop4h 50m
Deal found 9/11![United Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:22 pm -
2 stops9h 37m
Fri 10/3012:46 pm -
2 stops11h 58m
Deal found 9/8![Delta logo]()
$384
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:35 am -
1 stop4h 59m
Sat 10/107:00 am -
1 stop7h 10m
Deal found 9/9![United Airlines logo]()
$405
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/39:40 am -
2 stops12h 18m
Sat 11/77:00 am -
1 stop7h 13m
Deal found 9/10![United Airlines logo]()
$406
This Delta deal was found by Cheapflights users on 9/11. 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 9/266:15 am -
2 stops12h 06m
Wed 9/305:20 am -
2 stops12h 17m
Deal found 9/11![Delta logo]()
$409
This Delta deal was found by Cheapflights users on 9/9. 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.
Thu 9/247:05 am -
2 stops9h 32m
Sun 9/2712:39 pm -
2 stops11h 03m
Deal found 9/9![Delta logo]()
$409
Last-minute flights from St. Louis to McAllenDiscover last-minute flight deals from St. Louis to McAllen. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to McAllen. Data last updated September 12, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:15 am -
1 stop4h 44m
Sun 9/277:00 am -
1 stop7h 10m
Deal found 9/9![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:53 am -
2 stops11h 06m
Sat 9/265:20 pm -
1 stop5h 10m
Deal found 9/9![United Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 9/9. 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.
Wed 9/236:00 am -
2 stops10h 37m
Sat 9/265:20 am -
2 stops9h 29m
Deal found 9/9![Delta logo]()
$409
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:35 am -
1 stop4h 59m
Sat 10/107:00 am -
1 stop7h 10m
Deal found 9/9![United Airlines logo]()
$405
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 10/1010:12 am -
1 stop7h 19m
Sun 10/114:37 pm -
1 stop5h 22m
Deal found 9/7![American Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/1011:35 am -
2 stops10h 23m
Sun 10/115:20 pm -
1 stop5h 10m
Deal found 9/7![United Airlines logo]()
$404
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/295:40 am -
1 stop4h 52m
Mon 11/24:21 pm -
1 stop7h 12m
Deal found 9/10![American Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 9/7. 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.
Thu 10/292:22 pm -
2 stops9h 37m
Mon 11/212:46 pm -
2 stops11h 08m
Deal found 9/7![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:09 am -
2 stops11h 50m
Mon 11/25:15 pm -
1 stop5h 11m
Deal found 9/10![United Airlines logo]()
$414
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 September 12, 2026.
Search for one-way flight options from St. Louis to McAllen. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Wed 9/232:29 pm -
2 stops22h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$286
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Sat 11/710:21 am -
1 stop6h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Fri 9/188:10 pm -
2 stops19h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 9/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:47 am -
2 stops7h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Delta logo]()
$324
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:13 pm -
1 stop6h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$452
This Delta deal was found by Cheapflights users on 9/10. 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.
Mon 9/212:30 pm -
2 stops9h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$457
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 am -
3 stops14h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$720
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:20 am -
3 stops37h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$795
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 September 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $321 (United Airlines) |
One-way from | $286 (Kiwi.com) |
Popular in | November |
Cheapest in | February |
Average price | $441 |
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 7,457,451 searches. Data last updated September 12, 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 Lambert-St Louis - MFE McAllen Miller Intl
STLMFE
Lambert-St Louis
Wed 9/23
2:29 pm-12:29 pm
2 stops22h 00m
McAllen Miller Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$286
Quickest round-trip
St. LouisMcAllen
STL Lambert-St Louis - MFE McAllen Miller Intl
STLMFE
Lambert-St Louis
Sat 11/7
10:21 am-4:21 pm
1 stop6h 00m
McAllen Miller Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$309
St. LouisMcAllen
STL Lambert-St Louis - MFE McAllen Miller Intl
STLMFE
Lambert-St Louis
Fri 9/18
8:10 pm-3:59 pm
2 stops19h 49m
McAllen Miller Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$323
St. LouisMcAllen
STL Lambert-St Louis - MFE McAllen Miller Intl
STLMFE
Lambert-St Louis
Sat 11/7
10:47 am-6:23 pm
2 stops7h 36m
McAllen Miller Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$324
St. LouisMcAllen
STL Lambert-St Louis - MFE McAllen Miller Intl
STLMFE
Lambert-St Louis
Thu 10/29
5:40 am-10:32 am
1 stop4h 52m
McAllen Miller Intl
Mon 11/2
4:21 pm-11:33 pm
1 stop7h 12m
$329
St. LouisMcAllen
STL Lambert-St Louis - MFE McAllen Miller Intl
STLMFE
Lambert-St Louis
Thu 10/29
2:22 pm-11:59 pm
2 stops9h 37m
McAllen Miller Intl
Mon 11/2
12:46 pm-11:54 pm
2 stops11h 08m
$359
St. LouisMcAllen
STL Lambert-St Louis - MFE McAllen Miller Intl
STLMFE
Lambert-St Louis
Sat 9/26
6:00 am-3:59 pm
2 stops9h 59m
McAllen Miller Intl
Wed 9/30
5:20 am-10:10 am
1 stop4h 50m
$384
St. LouisMcAllen
STL Lambert-St Louis - MFE McAllen Miller Intl
STLMFE
Lambert-St Louis
Fri 10/23
2:22 pm-11:59 pm
2 stops9h 37m
McAllen Miller Intl
Fri 10/30
12:46 pm-12:44 am
2 stops11h 58m
$384
St. LouisMcAllen
STL Lambert-St Louis - MFE McAllen Miller Intl
STLMFE
Lambert-St Louis
Tue 10/6
8:35 am-1:34 pm
1 stop4h 59m
McAllen Miller Intl
Sat 10/10
7:00 am-2:10 pm
1 stop7h 10m
$405
St. LouisMcAllen
STL Lambert-St Louis - MFE McAllen Miller Intl
STLMFE
Lambert-St Louis
Tue 11/3
9:40 am-9:58 pm
2 stops12h 18m
McAllen Miller Intl
Sat 11/7
7:00 am-2:13 pm
1 stop7h 13m
$406
Showing 1-10 of 16 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 September.
| 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.
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 September 12, 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.
Crew
7.9
Food
6.4
Comfort
7.2
Overall
7.1
Entertainment
6.8
Boarding
7.5
Reviews
1 / 20
8.0
ExcellentMonica,Nov 2025
JAC - DFW
Crew
7.9
Food
6.4
Comfort
7.2
Overall
7.1
Entertainment
6.8
Boarding
7.5
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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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 7,457,451 searches. Data last updated September 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$293 | Average$433 | FlexibilityNo cancel fee | On-time71% |