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Cheap flights from Missouri to Harlingen from $109

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Missouri to Harlingen departing on 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Missouri to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:28 am - 9:58 am
MCI
-
HRL
4h 30m
1 stop
American Airlines Logo
5:28 pm - 11:24 pm
HRL
-
MCI
5h 56m
1 stop
$217American Airlines
Tue, Sep 15 - Fri, Sep 18
Southwest Logo
8:30 am - 3:50 pm
STL
-
HRL
7h 20m
2 stops
Southwest Logo
3:30 pm - 7:45 pm
HRL
-
STL
4h 15m
1 stop
$234Southwest
Sat, Aug 15 - Sat, Aug 22
Southwest Logo
5:15 am - 10:50 am
STL
-
HRL
5h 35m
2 stops
Southwest Logo
11:30 am - 7:45 pm
HRL
-
STL
8h 15m
2 stops
$239Southwest
Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
8:00 am - 3:05 pm
MCI
-
HRL
7h 05m
1 stop
American Airlines Logo
3:35 pm - 10:19 pm
HRL
-
MCI
6h 44m
1 stop
$245American Airlines
Tue, Sep 15 - Sat, Sep 19
United Airlines Logo
7:30 am - 3:59 pm
MCI
-
HRL
8h 29m
2 stops
United Airlines Logo
5:18 pm - 10:35 pm
HRL
-
MCI
5h 17m
1 stop
$302United Airlines
Tue, Aug 25 - Wed, Aug 26
American Airlines Logo
5:31 am - 10:12 am
MCI
-
HRL
4h 41m
1 stop
American Airlines Logo
8:04 pm - 12:23 am
HRL
-
MCI
4h 19m
1 stop
$317American Airlines
Wed, Jul 15 - Sun, Jul 19
Southwest Logo
5:25 pm - 9:45 pm
MCI
-
HRL
4h 20m
1 stop
Southwest Logo
6:05 am - 1:50 pm
HRL
-
MCI
7h 45m
2 stops
$322Southwest
Tue, Sep 15 - Sat, Sep 19
American Airlines Logo
5:31 am - 10:12 am
MCI
-
HRL
4h 41m
1 stop
American Airlines Logo
8:04 pm - 12:23 am
HRL
-
MCI
4h 19m
1 stop
$328American Airlines
Sun, Jul 26 - Sun, Aug 2
United Airlines Logo
8:30 am - 1:24 pm
MCI
-
HRL
4h 54m
1 stop
United Airlines Logo
5:18 pm - 10:35 pm
HRL
-
MCI
5h 17m
1 stop
$334United Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
8:30 am - 4:00 pm
MCI
-
HRL
7h 30m
1 stop
United Airlines Logo
7:18 am - 4:05 pm
HRL
-
MCI
8h 47m
2 stops
$339United Airlines
Tue, Nov 17 - Wed, Nov 18

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American Airlines flights from Missouri to Harlingen

Our best American Airlines deals on Missouri to Harlingen flight tickets
American Airlines
Sep 15
MCI5:28 amKansas City
4h 30m
1 stop
HRL9:58 amHarlingen Valley Intl
Sep 18
HRL5:28 pmHarlingen Valley Intl
5h 56m
1 stop
MCI11:24 pmKansas City
$217
American Airlines
Sep 15
MCI8:00 amKansas City
7h 05m
1 stop
HRL3:05 pmHarlingen Valley Intl
Sep 19
HRL3:35 pmHarlingen Valley Intl
6h 44m
1 stop
MCI10:19 pmKansas City
$245
American Airlines
Jul 15
MCI5:31 amKansas City
4h 41m
1 stop
HRL10:12 amHarlingen Valley Intl
Jul 19
HRL8:04 pmHarlingen Valley Intl
4h 19m
1 stop
MCI12:23 amKansas City
$317

Southwest flights from Missouri to Harlingen

Our best Southwest deals on Missouri to Harlingen flight tickets
Southwest
Aug 15
STL8:30 amLambert-St Louis
7h 20m
2 stops
HRL3:50 pmHarlingen Valley Intl
Aug 22
HRL3:30 pmHarlingen Valley Intl
4h 15m
1 stop
STL7:45 pmLambert-St Louis
$234
Southwest
Aug 15
STL5:15 amLambert-St Louis
5h 35m
2 stops
HRL10:50 amHarlingen Valley Intl
Aug 22
HRL11:30 amHarlingen Valley Intl
8h 15m
2 stops
STL7:45 pmLambert-St Louis
$239
Southwest
Sep 15
MCI5:25 pmKansas City
4h 20m
1 stop
HRL9:45 pmHarlingen Valley Intl
Sep 19
HRL6:05 amHarlingen Valley Intl
7h 45m
2 stops
MCI1:50 pmKansas City
$322

momondo Fare Finder

 
Customize your flight search to find flights from Missouri 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, momondo users made 832,500 searches. Data last updated June 27, 2026.
Use the filters below to find and compare flights from Missouri to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Tue 9/15

5:28 am-9:58 am

1 stop4h 30m

Harlingen Valley Intl

Fri 9/18

5:28 pm-11:24 pm

1 stop5h 56m

$217

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Sat 8/15

8:30 am-3:50 pm

2 stops7h 20m

Harlingen Valley Intl

Sat 8/22

3:30 pm-7:45 pm

1 stop4h 15m

$234

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Sat 8/15

5:15 am-10:50 am

2 stops5h 35m

Harlingen Valley Intl

Sat 8/22

11:30 am-7:45 pm

2 stops8h 15m

$239

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Tue 9/15

8:00 am-3:05 pm

1 stop7h 05m

Harlingen Valley Intl

Sat 9/19

3:35 pm-10:19 pm

1 stop6h 44m

$245

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Tue 8/25

7:30 am-3:59 pm

2 stops8h 29m

Harlingen Valley Intl

Wed 8/26

5:18 pm-10:35 pm

1 stop5h 17m

$302
Quickest round-trip

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Wed 7/15

5:31 am-10:12 am

1 stop4h 41m

Harlingen Valley Intl

Sun 7/19

8:04 pm-12:23 am

1 stop4h 19m

$317

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Tue 9/15

5:25 pm-9:45 pm

1 stop4h 20m

Harlingen Valley Intl

Sat 9/19

6:05 am-1:50 pm

2 stops7h 45m

$322

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Sun 7/26

5:31 am-10:12 am

1 stop4h 41m

Harlingen Valley Intl

Sun 8/2

8:04 pm-12:23 am

1 stop4h 19m

$328

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Tue 8/25

8:30 am-1:24 pm

1 stop4h 54m

Harlingen Valley Intl

Wed 8/26

5:18 pm-10:35 pm

1 stop5h 17m

$334

Kansas CityHarlingen

MCI - HRL

MCIHRL

Kansas City

Tue 11/17

8:30 am-4:00 pm

1 stop7h 30m

Harlingen Valley Intl

Wed 11/18

7:18 am-4:05 pm

2 stops8h 47m

$339

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Harlingen from

How to get the cheapest flight ticket from Missouri to Harlingen

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Harlingen?

If you aren’t able to travel during the month of November, then book flights to Harlingen from Missouri during January instead. Flights to Harlingen in January, while not as cheap as those in November, still average around $199.

Can stopping save me money on Missouri to Harlingen flights?

You could potentially save up to 5% on your flight if you consider stops on a Missouri to Harlingen flight.

Cheap Missouri to Harlingen flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Missouri to Harlingen

Fastest flight time

4h 05m

Direct flights

None
The fastest flight from Missouri to Harlingen takes 4h 05m
There are no direct flights from Missouri to Harlingen. There are no popular flight routes from Missouri to Harlingen.
Search flight deals

Frequently asked questions about flying from Missouri to Harlingen

  • When did momondo last update prices for flights from Missouri to Harlingen Valley Intl Airport?

    Prices for flights from Missouri to Harlingen Valley Intl Airport were last updated today.

  • How many operators does momondo search for flights from Missouri to Harlingen Valley Intl Airport?

  • How old do you have to be to fly from Missouri to Harlingen Valley Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Missouri to Harlingen Valley Intl Airport.

  • What documentation or ID do you need to fly to Harlingen Valley Intl Airport?

    The travel and health documents you'll need for your trip to Harlingen Valley Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Harlingen Valley Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Missouri to Harlingen

Compare and see reviews for airlines that fly from Missouri to Harlingen with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $199Free CancellationRating
7.9
4,246 reviews
Search Southwest flights
American AirlinesPriceFrom $212Free CancellationRating
7.1
11,778 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Missouri to Harlingen?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Missouri to Harlingen. momondo saves you time and could save you money on your trip.

Can I find flights from Missouri to Harlingen with flexible booking policies on momondo?

Flights from Missouri to Harlingen with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Missouri to Harlingen?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Harlingen from Missouri.

I’m not ready to book a flight from Missouri to Harlingen right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Harlingen from Missouri. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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