$124+ Cheap flights from Kansas City to Harlingen (MCI - HRL)
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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — HRL
Oct 6 — Oct 131
Round-trip
1 adult, Economy
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Find cheap flights from Kansas City to Harlingen 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 Kansas City to Harlingen
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Best
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One-way
Cheapest flights from Kansas City to HarlingenExplore the most affordable flight options available from Kansas City to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 6, 2026.
Explore the most affordable flight options available from Kansas City to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 6, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/288:30 am -
1 stop4h 51m
Mon 11/25:05 am -
1 stop5h 01m
Deal found 9/4![United Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 9/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:05 am -
1 stop4h 25m
Mon 11/24:45 pm -
2 stops6h 35m
Deal found 9/4![Southwest logo]()
$252
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:55 pm -
2 stops6h 50m
Tue 11/106:20 am -
2 stops6h 25m
Deal found 9/3![Southwest logo]()
$257
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/45:28 am -
1 stop4h 30m
Sun 10/116:42 pm -
1 stop4h 41m
Deal found 9/4![American Airlines logo]()
$284
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/195:28 am -
1 stop4h 30m
Sat 9/265:51 am -
1 stop6h 27m
Deal found 9/2![American Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/238:30 am -
1 stop4h 54m
Sat 9/265:05 am -
1 stop5h 01m
Deal found 9/4![United Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 9/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:35 am -
1 stop4h 25m
Tue 9/296:35 am -
2 stops6h 10m
Deal found 9/4![Southwest logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/2311:22 am -
2 stops8h 17m
Tue 9/295:05 am -
2 stops9h 13m
Deal found 9/4![United Airlines logo]()
$364
Best flights from Kansas City to HarlingenDiscover carefully curated flight deals from Kansas City to Harlingen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
Discover carefully curated flight deals from Kansas City to Harlingen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/288:30 am -
1 stop4h 51m
Mon 11/25:05 am -
1 stop5h 01m
Deal found 9/4![United Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:55 pm -
2 stops6h 50m
Tue 11/106:20 am -
2 stops6h 25m
Deal found 9/3![Southwest logo]()
$257
This American Airlines deal was found by Cheapflights users on 9/1. 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 9/195:28 am -
1 stop4h 30m
Sat 9/265:51 am -
1 stop6h 27m
Deal found 9/1![American Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 9/3. 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 31m
Tue 11/105:05 am -
1 stop5h 01m
Deal found 9/3![United Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/75:35 am -
2 stops5h 45m
Thu 1/146:50 am -
2 stops6h 40m
Deal found 9/3![Southwest logo]()
$375
This United Airlines deal was found by Cheapflights users on 9/3. 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 11/1711:27 am -
2 stops8h 20m
Wed 11/185:05 am -
1 stop5h 01m
Deal found 9/3![United Airlines logo]()
$372
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:35 am -
1 stop3h 45m
Mon 9/215:55 pm -
1 stop4h 25m
Deal found 9/1![Southwest logo]()
$379
Last-minute flights from Kansas City to HarlingenDiscover last-minute flight deals from Kansas City to Harlingen. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from Kansas City to Harlingen. Data last updated September 6, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/195:28 am -
1 stop4h 30m
Sat 9/265:51 am -
1 stop6h 27m
Deal found 9/2![American Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/238:30 am -
1 stop4h 54m
Sat 9/265:05 am -
1 stop5h 01m
Deal found 9/4![United Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 9/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:35 am -
1 stop4h 25m
Tue 9/296:35 am -
2 stops6h 10m
Deal found 9/4![Southwest logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/2311:22 am -
2 stops8h 17m
Tue 9/295:05 am -
2 stops9h 13m
Deal found 9/4![United Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/45:28 am -
1 stop4h 30m
Sun 10/116:42 pm -
1 stop4h 41m
Deal found 9/4![American Airlines logo]()
$284
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/66:00 am -
2 stops9h 59m
Fri 10/95:18 pm -
1 stop5h 17m
Deal found 9/4![United Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/288:30 am -
1 stop4h 51m
Mon 11/25:05 am -
1 stop5h 01m
Deal found 9/4![United Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 9/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:05 am -
1 stop4h 25m
Mon 11/24:45 pm -
2 stops6h 35m
Deal found 9/4![Southwest logo]()
$252
One-way flights from Kansas City to HarlingenSearch for one-way flight options from Kansas City to Harlingen. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
Search for one-way flight options from Kansas City to Harlingen. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:35 am -
1 stop4h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Southwest logo]()
$124
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/165:25 pm -
1 stop4h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Southwest logo]()
$190
This Southwest deal was found by Cheapflights users on 9/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:05 am -
1 stop4h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Southwest logo]()
$235
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/127:32 am -
2 stops12h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$250
This United Airlines deal was found by Cheapflights users on 9/5. 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 10/206:19 am -
1 stop7h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$269
This Southwest deal was found by Cheapflights users on 9/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:10 pm -
2 stops7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Southwest logo]()
$285
This Southwest deal was found by Cheapflights users on 9/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:10 pm -
2 stops7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Southwest logo]()
$290
Find flight deals from Kansas City to Harlingen
Discover tips and strategies to find the most affordable flight options for your journey from Kansas City (MCI) to Harlingen (HRL). 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 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $247 (United Airlines) |
One-way from | $124 (Southwest) |
Popular in | September |
Cheapest in | January |
Average price | $501 |
Cheapflights Fare Finder
Customize your flight search to find flights from Kansas City to Harlingen 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 6, 2026.
Use the filters below to find and compare flights from Kansas City to Harlingen that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Wed 9/30
8:35 am-1:00 pm
1 stop4h 25m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$124
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Sat 9/19
5:28 am-9:58 am
1 stop4h 30m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$190
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Sat 9/19
5:30 am-10:50 am
2 stops5h 20m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$195
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Wed 9/16
9:20 am-4:45 pm
2 stops7h 25m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$195
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Sun 9/13
5:24 pm-10:48 pm
1 stop5h 24m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$235
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Mon 9/14
11:40 am-5:15 pm
1 stop5h 35m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$235
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Wed 10/28
8:30 am-1:21 pm
1 stop4h 51m
Harlingen Valley Intl
Mon 11/2
5:05 am-10:06 am
1 stop5h 01m
$247
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Tue 11/3
8:30 am-4:01 pm
1 stop7h 31m
Harlingen Valley Intl
Tue 11/10
5:05 am-10:06 am
1 stop5h 01m
$247
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Sat 9/12
7:32 am-7:39 pm
2 stops12h 07m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$250
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Tue 11/3
2:55 pm-9:45 pm
2 stops6h 50m
Harlingen Valley Intl
Tue 11/10
6:20 am-12:45 pm
2 stops6h 25m
$257
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Kansas City to Harlingen
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 Kansas City to Harlingen 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 Kansas City-Harlingen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kansas City-Harlingen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kansas City-Harlingen flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Kansas City-Harlingen 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 Kansas City-Harlingen 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 Kansas City to Harlingen
Have a flexible travel schedule? Discover the best time to fly to Harlingen from Kansas City with our price prediction graph.
MCI-HRL
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 Kansas City to Harlingen
Reviews of airlines servicing Harlingen
Get insights into the airlines that provide service to Harlingen. 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 Harlingen. Reviews last updated September 6, 2026.
Get a feel of what it's like to fly with Southwest and American Airlines from Kansas City to Harlingen by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Related info for your journey
Find useful and relevant information for your journey from Kansas City to Harlingen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Other flights to Harlingen
Explore flights to Harlingen departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 6, 2026.
Kansas City and Harlingen flights
Browse other Kansas City and Harlingen flight options. Last updated on September 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Kansas City to Harlingen
Discover the top 2 airlines that operate flights from Kansas City to Harlingen. 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 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$199 | Average$343 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$236 | Average$265 | FlexibilityNo cancel fee | On-time71% |