How does KAYAK find such low prices on flights from Missouri to Harlingen?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to Harlingen.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to Harlingen?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Harlingen from Missouri is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Missouri to Harlingen?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Harlingen with an airline and back to Missouri with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to Harlingen?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Harlingen from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$96 CHEAP FLIGHTS from Missouri to Harlingen

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Cheap Flights from Missouri to Harlingen

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Missouri to Harlingen

Wed, Nov 18 - Mon, Nov 23

8:30 am - 3:50 pmSTL Lambert-St Louis-HRL Harlingen Valley Intl

7h 20m1 stop Houston Hobby

4:45 pm - 10:40 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

5h 55m1 stop Houston Hobby

$238Southwest

Wed, Nov 18 - Mon, Nov 23

5:30 am - 12:10 pmSTL Lambert-St Louis-HRL Harlingen Valley Intl

6h 40m2 stops Dallas Love Field Houston Hobby

4:45 pm - 10:40 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

5h 55m1 stop Houston Hobby

$243Southwest

Sat, Feb 20 - Sat, Feb 27

5:50 am - 12:40 pmMCI Kansas City-HRL Harlingen Valley Intl

6h 50m1 stop Dallas Love Field

6:45 am - 5:20 pmHRL Harlingen Valley Intl-MCI Kansas City

10h 35m1 stop Austin Bergstrom

$252Southwest

Tue, Nov 17 - Mon, Nov 23

1:40 pm - 8:45 pmSTL Lambert-St Louis-HRL Harlingen Valley Intl

7h 05m1 stop Austin Bergstrom

4:45 pm - 10:40 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

5h 55m1 stop Houston Hobby

$259Southwest

Fri, Jan 1 - Tue, Jan 5

6:00 am - 1:30 pmMCI Kansas City-HRL Harlingen Valley Intl

7h 30m1 stop Houston George Bush Intcntl

2:05 pm - 6:44 pmHRL Harlingen Valley Intl-MCI Kansas City

4h 39m1 stop Houston George Bush Intcntl

$268United Airlines

Thu, Oct 29 - Sun, Nov 1

8:30 am - 1:21 pmMCI Kansas City-HRL Harlingen Valley Intl

4h 51m1 stop Houston George Bush Intcntl

5:05 am - 10:06 amHRL Harlingen Valley Intl-MCI Kansas City

5h 01m1 stop Houston George Bush Intcntl

$273United Airlines

Thu, Oct 29 - Sun, Nov 1

7:36 am - 4:01 pmMCI Kansas City-HRL Harlingen Valley Intl

8h 25m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

5:05 am - 10:06 amHRL Harlingen Valley Intl-MCI Kansas City

5h 01m1 stop Houston George Bush Intcntl

$278United Airlines

Mon, Nov 23 - Tue, Dec 1

5:00 am - 10:10 amSTL Lambert-St Louis-HRL Harlingen Valley Intl

5h 10m1 stop Dallas/Fort Worth

6:46 pm - 11:35 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

4h 49m1 stop Dallas/Fort Worth

$301American Airlines

Mon, Nov 23 - Tue, Dec 1

5:00 am - 10:10 amSTL Lambert-St Louis-HRL Harlingen Valley Intl

5h 10m1 stop Dallas/Fort Worth

6:46 pm - 11:35 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

4h 49m1 stop Dallas/Fort Worth

$307American Airlines

Sat, Oct 24 - Fri, Oct 30

5:40 am - 10:08 amSTL Lambert-St Louis-HRL Harlingen Valley Intl

4h 28m1 stop Dallas/Fort Worth

6:42 pm - 11:42 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

5h 00m1 stop Dallas/Fort Worth

$311American Airlines

Useful Info

Low season	July
High season	March
Cheapest flight	$96

Best time to beat the crowds but there is an average 39% increase in price.

Most popular time to fly with an average 7% increase in price.

Flight from St. Louis to Harlingen

How does KAYAK find such low prices on flights from Missouri to Harlingen?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to Harlingen.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to Harlingen?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Harlingen from Missouri is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Missouri to Harlingen?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Harlingen with an airline and back to Missouri with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to Harlingen?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Harlingen from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.