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Harlingen

$114+ Cheap flights from Kansas City to Harlingen (MCI - HRL)

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — HRL
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
1 adult, Economy
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Cheap flight deals from Kansas City to Harlingen

Cheapest flights from Kansas City to Harlingen
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 July 23, 2026.

This American Airlines deal was found by Cheapflights users on 7/22. 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 9/195:28 am
MCI
-
HRL
1 stop4h 30m
American Airlines
Sat 9/265:51 am
HRL
-
MCI
1 stop6h 27m
American Airlines
Deal found 7/22$224
This Southwest deal was found by Cheapflights users on 7/21. 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 10/235:20 am
MCI
-
HRL
2 stops6h 55m
Southwest
Fri 10/305:30 pm
HRL
-
MCI
1 stop5h 25m
Southwest
Deal found 7/21$232
This United Airlines deal was found by Cheapflights users on 7/20. 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 11/38:30 am
MCI
-
HRL
1 stop7h 30m
United Airlines
Wed 11/45:05 am
HRL
-
MCI
1 stop5h 00m
United Airlines
Deal found 7/20$297

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 July 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$224
(American Airlines)

One-way from

$114
(Southwest)

Popular in

December

Cheapest in

January

Average price

$282
Provider with most accurate pricing for Kansas City-Harlingen Valley Intl flight deals.
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Provider most trusted by Cheapflights users for Kansas City-Harlingen Valley Intl flights.
Search Deals
From Kansas City to Harlingen Valley Intl
Search Deals
One-way flight from Kansas City to Harlingen Valley Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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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 2,558,603 searches. Data last updated July 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

Price

Cheapest round-trip
Quickest round-trip

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Fri 10/23

7:40 pm-11:35 pm

1 stop3h 55m

Harlingen Valley Intl

Fri 10/30

5:30 pm-10:55 pm

1 stop5h 25m

$227

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Sat 9/19

12:19 pm-10:48 pm

2 stops10h 29m

Harlingen Valley Intl

Sat 9/26

10:45 am-4:39 pm

1 stop5h 54m

$287

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Tue 11/3

8:30 am-4:00 pm

1 stop7h 30m

Harlingen Valley Intl

Wed 11/4

5:05 am-10:05 am

1 stop5h 00m

$297

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Sun 8/16

6:20 am-1:24 pm

1 stop7h 04m

Harlingen Valley Intl

Sun 8/23

5:18 pm-10:35 pm

1 stop5h 17m

$315

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Tue 8/18

8:30 am-1:24 pm

1 stop4h 54m

Harlingen Valley Intl

Mon 8/24

5:18 pm-10:35 pm

1 stop5h 17m

$318
Cheapest one-way
Quickest one-way

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Tue 10/6

6:00 pm-9:55 pm

1 stop3h 55m

$114

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Wed 7/29

6:25 pm-11:05 pm

1 stop4h 40m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Sorted 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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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

What is the cheapest month to book a flight from Kansas City to Harlingen?

Currently, January is the cheapest month in which you can book a flight from Kansas City to Harlingen (average of $249). Flying from Kansas City to Harlingen in December is currently the most expensive (average of $492). 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 Kansas City to Harlingen?

Airfare is below average for this route at the moment.

Kansas City to Harlingen flights typically cost between $262 and $470 in September.
The cheapest round-trip price found within the last 5 days was $224 on American Airlines (Sep 19-Sep 26).

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 July 23, 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.
Southwest
8.0
Very good
4,238 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.1
Good
11,834 reviews
Southwest
8.0
Very good
4,238 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Kansas City to Harlingen?

    There are many flights that can get you from Kansas City to Harlingen in 3h 55m. Fly via Southwest, American Airlines, or United Airlines to get the fastest option. The distance from Kansas City to Harlingen is about 918 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Kansas City to Harlingen round-trip?

    Currently priced at $199, Southwest will fly you from Kansas City to Harlingen and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on American Airlines for as low as $236. Users have found that Southwest is 43% cheaper than the other options available to this destination.

  • Can I find deals for flights from Kansas City to Harlingen that include hotel bookings?

    Yes. In addition to deals on Kansas City to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kansas City to Harlingen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kansas City to Harlingen.

  • Can I find deals for business class flights from Kansas City to Harlingen?

    Yes. Cheapflights offers flight deals from Kansas City to Harlingen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kansas City to Harlingen?

    Currently, January is the cheapest month in which you can book a flight from Kansas City to Harlingen (average of $249). Flying from Kansas City to Harlingen in December is currently the most expensive (average of $492). 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.

See more FAQs

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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 2,558,603 searches. Data last updated July 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$199Average$343FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$236Average$265FlexibilityNo cancel feeOn-time71%

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