$159+ 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 12/30. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — HRL
Nov 22 — Nov 291
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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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 October 23, 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 October 23, 2026.
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Wed 12/165:20 am -
1 stop4h 51m
Tue 12/227:21 pm -
1 stop5h 06m
Deal found 10/22![American Airlines logo]()
$296
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/306:00 am -
1 stop7h 30m
Wed 1/64:35 pm -
1 stop5h 55m
Deal found 10/21![United Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/56:24 pm -
1 stop4h 24m
Mon 11/95:05 am -
1 stop5h 01m
Deal found 10/21![United Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/66:00 am -
2 stops10h 01m
Tue 11/105:05 am -
2 stops11h 06m
Deal found 10/22![United Airlines logo]()
$418
This American Airlines deal was found by Cheapflights users on 10/22. 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 12/264:22 pm -
1 stop6h 32m
Wed 12/307:21 pm -
1 stop5h 06m
Deal found 10/22![American Airlines logo]()
$420
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/188:30 am -
1 stop7h 33m
Sun 12/275:05 am -
1 stop4h 57m
Deal found 10/21![United Airlines logo]()
$438
This Southwest deal was found by Cheapflights users on 10/22. 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 10/297:00 am -
1 stop6h 15m
Thu 11/55:50 am -
1 stop4h 10m
Deal found 10/22![Southwest logo]()
$444
This Southwest deal was found by Cheapflights users on 10/22. 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 12/275:15 am -
1 stop5h 55m
Wed 12/308:35 pm -
1 stop4h 05m
Deal found 10/22![Southwest logo]()
$463
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 October 23, 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 October 23, 2026.
This Southwest deal was found by Cheapflights users on 10/21. 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.
Fri 2/55:10 am -
2 stops6h 25m
Mon 2/86:00 pm -
1 stop5h 55m
Deal found 10/21![Southwest logo]()
$205
This American Airlines deal was found by Cheapflights users on 10/18. 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 2/55:01 am -
1 stop5h 04m
Sun 2/146:21 pm -
1 stop5h 06m
Deal found 10/18![American Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/56:24 pm -
1 stop4h 24m
Mon 11/95:05 am -
1 stop5h 01m
Deal found 10/21![United Airlines logo]()
$408
This Southwest deal was found by Cheapflights users on 10/18. 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.
Fri 2/510:50 am -
2 stops6h 40m
Sun 2/141:00 pm -
2 stops5h 25m
Deal found 10/18![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/66:24 pm -
1 stop4h 24m
Tue 11/105:25 pm -
1 stop5h 05m
Deal found 10/22![United Airlines logo]()
$408
This Southwest deal was found by Cheapflights users on 10/22. 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.
Sat 12/267:30 pm -
1 stop4h 15m
Wed 12/303:40 pm -
2 stops8h 15m
Deal found 10/22![Southwest logo]()
$468
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/46:28 am -
1 stop6h 53m
Sat 11/75:05 am -
1 stop5h 01m
Deal found 10/21![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/49:45 am -
2 stops10h 02m
Sun 11/811:25 am -
1 stop5h 27m
Deal found 10/20![United Airlines logo]()
$504
This Southwest deal was found by Cheapflights users on 10/21. 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.
Fri 12/183:25 pm -
1 stop4h 40m
Sun 12/275:45 pm -
2 stops6h 55m
Deal found 10/21![Southwest logo]()
$514
Last-minute flights from Kansas City to HarlingenDiscover last-minute flight deals from Kansas City to Harlingen. Data last updated October 23, 2026 and is based on user searches.
Discover last-minute flight deals from Kansas City to Harlingen. Data last updated October 23, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/20. 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 10/238:01 am -
1 stop6h 15m
Sun 10/256:42 pm -
1 stop4h 41m
Deal found 10/20![American Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 10/20. 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 10/2311:34 am -
2 stops10h 18m
Sun 10/255:25 pm -
1 stop5h 05m
Deal found 10/20![United Airlines logo]()
$514
This United Airlines deal was found by Cheapflights users on 10/20. 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 10/273:00 pm -
1 stop4h 47m
Fri 10/305:05 am -
1 stop5h 02m
Deal found 10/20![United Airlines logo]()
$559
This Southwest deal was found by Cheapflights users on 10/22. 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 10/297:00 am -
1 stop6h 15m
Thu 11/55:50 am -
1 stop4h 10m
Deal found 10/22![Southwest logo]()
$444
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/46:28 am -
1 stop6h 53m
Sat 11/75:05 am -
1 stop5h 01m
Deal found 10/21![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/56:24 pm -
1 stop4h 24m
Mon 11/95:05 am -
1 stop5h 01m
Deal found 10/21![United Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/66:00 am -
2 stops10h 01m
Tue 11/105:05 am -
2 stops11h 06m
Deal found 10/22![United Airlines logo]()
$418
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 October 23, 2026.
Search for one-way flight options from Kansas City to Harlingen. Find affordable one-way fares based on user searches. Data last updated October 23, 2026.
This United Airlines deal was found by Cheapflights users on 10/20. 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 12/306:00 am -
1 stop7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$159
This Southwest deal was found by Cheapflights users on 10/21. 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.
Sat 12/195:35 am -
1 stop5h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Southwest logo]()
$250
This United Airlines deal was found by Cheapflights users on 10/18. 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 11/211:27 am -
2 stops11h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![United Airlines logo]()
$255
This Mytrip deal was found by Cheapflights users on 10/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1912:45 pm -
3 stops21h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$400
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 October 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $200 (Southwest) |
One-way from | $159 (United Airlines) |
Popular in | November |
Cheapest in | January |
Average price | $437 |
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 October 23, 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
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Wed 12/30
6:00 am-1:30 pm
1 stop7h 30m
Harlingen Valley Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Fri 2/5
5:10 am-11:35 am
2 stops6h 25m
Harlingen Valley Intl
Mon 2/8
6:00 pm-11:55 pm
1 stop5h 55m
$205
Quickest round-trip
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Sat 12/19
5:35 am-10:50 am
1 stop5h 15m
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
Fri 12/18
5:15 am-11:10 am
1 stop5h 55m
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
Fri 2/5
5:01 am-10:05 am
1 stop5h 04m
Harlingen Valley Intl
Sun 2/14
6:21 pm-11:27 pm
1 stop5h 06m
$303
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Fri 2/5
10:50 am-5:30 pm
2 stops6h 40m
Harlingen Valley Intl
Sun 2/14
1:00 pm-6:25 pm
2 stops5h 25m
$382
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Thu 11/5
6:24 pm-10:48 pm
1 stop4h 24m
Harlingen Valley Intl
Mon 11/9
5:05 am-10:06 am
1 stop5h 01m
$408
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Fri 11/6
6:24 pm-10:48 pm
1 stop4h 24m
Harlingen Valley Intl
Tue 11/10
5:25 pm-10:30 pm
1 stop5h 05m
$408
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Sat 12/26
7:30 pm-11:45 pm
1 stop4h 15m
Harlingen Valley Intl
Wed 12/30
3:40 pm-11:55 pm
2 stops8h 15m
$468
Kansas CityHarlingen
MCI Kansas City - HRL Harlingen Valley Intl
MCIHRL
Kansas City
Wed 11/4
6:28 am-1:21 pm
1 stop6h 53m
Harlingen Valley Intl
Sat 11/7
5:05 am-10:06 am
1 stop5h 01m
$499
Showing 1-10 of 12 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 October.
| 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 October 23, 2026.
Get a feel of what it's like to fly with Southwest 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.
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Overall
7.9
Food
7.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreMike,Aug 2025
OKC - AUS
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Overall
7.9
Food
7.0
Crew
8.6
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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Find flights from Kansas City to Harlingen, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 October 23, 2026.
Kansas City and Harlingen flights
Browse other Kansas City and Harlingen flight options. Last updated on October 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Kansas City to Harlingen
Discover the top airline 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 October 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$199 | Average$349 | FlexibilityNo cancel fee | On-time63% |