Which airports can I use when flying from St. Louis to Harlingen?

Flights from St. Louis to Harlingen usually depart from Lambert-St Louis (STL) and arrive at Harlingen Valley Intl (HRL).

What cabin classes can I book on flights from St. Louis to Harlingen?

Only Economy Class is available on flights from St. Louis to Harlingen.

Which airports do connecting flights from St. Louis to Harlingen pass through?

One-stop flights from St. Louis to Harlingen most commonly connect through: • Dallas/Fort Worth (DFW) - 47% of one-stop connections • Houston Hobby (HOU) - 26% of one-stop connections • Houston George Bush Intcntl (IAH) - 26% of one-stop connections

Can I save money by using flexible dates for flights from St. Louis to Harlingen?

Yes. Flexible dates can save you up to 38% on flights from St. Louis to Harlingen. Monday is the cheapest departure day at $256 round-trip on average, while Wednesday is the most expensive at $407, a difference of $151. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

How long is a flight from St. Louis to Harlingen?

A nonstop flight from St. Louis to Harlingen takes 00m, covering 962 miles.

Do I need a passport to fly from St. Louis to Harlingen?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from St. Louis to Harlingen changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $257 to $1,068. That means the highest observed fare was about 4x higher than the lowest one.

How are flight prices from St. Louis to Harlingen looking right now?

One-way fares from St. Louis to Harlingen are currently higher than usual. Average one-way flight prices are about $282, which is 11% above the typical average for this route.

How much time can I save by choosing a different layover airport from St. Louis to Harlingen?

Flying via Houston Hobby (HOU) gives the shortest average 1-stop total travel time at 4h 58m, compared with 5h 03m via Dallas/Fort Worth (DFW) and 5h 13m via Houston George Bush Intcntl (IAH).

What car rental options are available at Harlingen Valley Intl Airport (HRL)?

Harlingen Valley Intl Airport (HRL) hosts 5 major car rental companies, with daily rates starting from around $30 for economy cars. Top options include: • Dollar • Budget • Hertz • Enterprise Rent-A-Car • Avis

How much should I expect to pay for a St. Louis to Harlingen flight?

Round-trip flights from St. Louis to Harlingen range from $330 to $417, with an average of $390 over the past 12 months. Anything below $330 counts as a good deal.

How much is a round-trip flight from St. Louis to Harlingen?

Round-trip flights from St. Louis to Harlingen typically range from $330 to $417. The lowest price found in the past 5 days was $257, on Southwest.

What's the cheapest day of the week to fly from St. Louis to Harlingen?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from St. Louis to Harlingen. It’s 35% cheaper than the average day, while Wednesday is the most expensive, with prices 4% higher.

Which airline is the cheapest to fly from St. Louis to Harlingen?

Southwest ($257) and American Airlines ($327) are the cheapest airlines to fly round-trip from St. Louis to Harlingen according to KAYAK data over the last 5 days.

What’s the most popular layover airport when flying from St. Louis to Harlingen?

Dallas/Fort Worth (DFW) is the most popular layover for the St. Louis to Harlingen route. 47% of KAYAK users who booked 1-stop round-trips over the past 3 months connected via DFW.

What is the cheapest layover airport when flying from St. Louis to Harlingen?

Flights via Houston George Bush Intcntl (IAH) offer the most affordable fares, with an average round-trip price of $349. Based on KAYAK data over the past 3 months.

When flying from St. Louis to Harlingen which airport offers the shortest layover?

Dallas/Fort Worth (DFW) had the shortest average connection time for St. Louis to Harlingen layovers at 3h 11m over the past 3 months.

$175 CHEAP FLIGHTS from St. Louis to Harlingen (STL - HRL)

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$257

Typical prices: $330-$417

Southwest

Mon 1/1Sat 1/6

STL - HRL • 2 stops

Cheapest one-way

$175

Typical prices: $225-$319

American Airlines

Wed 11/7

STL - HRL • 1 stop

Nonstop flights

Not available

There are currently no direct flights between St. Louis and Harlingen. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

January

Cheapest • 34% price drop

February

Most popular

Good to know

Top layover airports

Houston George Bush Intcntl (IAH)

Cheapest • Avg $349 (round-trip)

Houston Hobby (HOU)

Shortest trip • 4h 58m (one-way)

Insights

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KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Harlingen!

Flight Deals

Cheap Flights from St. Louis to Harlingen (STL-HRL)

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 St. Louis to Harlingen

Fri, Jan 1 - Wed, Jan 6

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

6h 40m2 stops Dallas Love Field Houston Hobby

1:00 pm - 8:30 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

7h 30m1 stop Houston Hobby

$257Southwest

Fri, Jan 1 - Wed, Jan 6

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

6h 40m2 stops Dallas Love Field Houston Hobby

1:00 pm - 7:45 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

6h 45m2 stops Houston Hobby Dallas Love Field

$257Southwest

Fri, Jan 1 - Wed, Jan 6

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

7h 20m1 stop Houston Hobby

1:00 pm - 8:30 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

7h 30m1 stop Houston Hobby

$317Southwest

Fri, Jan 1 - Wed, Jan 6

5:00 am - 10:04 amSTL Lambert-St Louis-HRL Harlingen Valley Intl

5h 04m1 stop Dallas/Fort Worth

10:35 am - 2:55 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

4h 20m1 stop Dallas/Fort Worth

$327American Airlines

Fri, Jan 1 - Wed, Jan 6

6:15 am - 1:30 pmSTL Lambert-St Louis-HRL Harlingen Valley Intl

7h 15m1 stop Houston George Bush Intcntl

9:20 am - 5:50 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

8h 30m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

$332United Airlines

Tue, Nov 10 - Wed, Nov 11

1:08 pm - 10:48 pmSTL Lambert-St Louis-HRL Harlingen Valley Intl

9h 40m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

5:05 am - 10:02 amHRL Harlingen Valley Intl-STL Lambert-St Louis

4h 57m1 stop Houston George Bush Intcntl

$334United Airlines

Fri, Jan 1 - Wed, Jan 6

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

6h 40m2 stops Dallas Love Field Houston Hobby

1:00 pm - 7:45 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

6h 45m2 stops Houston Hobby Dallas Love Field

$337Southwest

Tue, Nov 10 - Wed, Nov 11

1:08 pm - 10:48 pmSTL Lambert-St Louis-HRL Harlingen Valley Intl

9h 40m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

5:05 am - 3:43 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

10h 38m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

$339United Airlines

Tue, Nov 3 - Sun, Nov 8

5:00 am - 10:14 amSTL Lambert-St Louis-HRL Harlingen Valley Intl

5h 14m1 stop Dallas/Fort Worth

6:41 pm - 11:33 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

4h 52m1 stop Dallas/Fort Worth

$459American Airlines

Wed, Nov 25 - Sun, Nov 29

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

5h 10m1 stop Dallas/Fort Worth

6:46 pm - 12:18 amHRL Harlingen Valley Intl-STL Lambert-St Louis

5h 32m1 stop Dallas/Fort Worth

$578American Airlines

Recent last minute flight deals from St. Louis to Harlingen

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

$436American 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

$446American Airlines

Sat, Oct 24 - Fri, Oct 30

7:28 am - 6:12 pmSTL Lambert-St Louis-HRL Harlingen Valley Intl

10h 44m2 stops Chicago O'Hare Intl Dallas/Fort Worth

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

5h 00m1 stop Dallas/Fort Worth

$449American Airlines

Sat, Oct 24 - Fri, Oct 30

7:28 am - 6:12 pmSTL Lambert-St Louis-HRL Harlingen Valley Intl

10h 44m2 stops Chicago O'Hare Intl Dallas/Fort Worth

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

5h 00m1 stop Dallas/Fort Worth

$459American Airlines

Thu, Oct 22 - Sun, Oct 25

11:10 am - 3:59 pmSTL Lambert-St Louis-HRL Harlingen Valley Intl

4h 49m1 stop Houston George Bush Intcntl

11:25 am - 4:50 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

5h 25m1 stop Houston George Bush Intcntl

$499United Airlines

Sat, Oct 24 - Fri, Oct 30

1:25 pm - 9:52 pmSTL Lambert-St Louis-HRL Harlingen Valley Intl

8h 27m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

5:05 am - 2:29 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

9h 24m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

$546United Airlines

Thu, Oct 22 - Sun, Oct 25

9:45 pm - 11:20 amSTL Lambert-St Louis-HRL Harlingen Valley Intl

13h 35m2 stops Las Vegas Harry Reid Intl Austin Bergstrom

6:00 am - 1:00 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

7h 00m1 stop Houston Hobby

$555Southwest

Thu, Oct 22 - Sun, Oct 25

9:45 pm - 11:20 amSTL Lambert-St Louis-HRL Harlingen Valley Intl

13h 35m2 stops Las Vegas Harry Reid Intl Austin Bergstrom

6:55 pm - 12:40 amHRL Harlingen Valley Intl-STL Lambert-St Louis

5h 45m2 stops Houston Hobby Dallas Love Field

$570Southwest

Sat, Oct 24 - Fri, Oct 30

8:35 am - 1:23 pmSTL Lambert-St Louis-HRL Harlingen Valley Intl

4h 48m1 stop Houston George Bush Intcntl

5:05 am - 10:02 amHRL Harlingen Valley Intl-STL Lambert-St Louis

4h 57m1 stop Houston George Bush Intcntl

$581United Airlines

Sat, Oct 24 - Fri, Oct 30

8:35 am - 1:23 pmSTL Lambert-St Louis-HRL Harlingen Valley Intl

4h 48m1 stop Houston George Bush Intcntl

1:59 pm - 6:38 pmHRL Harlingen Valley Intl-STL Lambert-St Louis

4h 39m1 stop Houston George Bush Intcntl

$581United Airlines

Booking Insights

Price, demand and travel trends for St. Louis to Harlingen flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from St. Louis to Harlingen? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Harlingen departing in january.
What's the cheapest day of the week to fly from St. Louis to Harlingen?: Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from St. Louis to Harlingen. It’s 35% cheaper than the average day, while Wednesday is the most expensive, with prices 4% higher.

Find deals

Low season	August
High season	February
Cheapest flight	$175

Beat the crowds with an average 74% drop in travelers.

The most popular month to fly with an average 96% increase in travelers.

One-way flight from St. Louis to Harlingen

When to book flights from St. Louis to Harlingen

Are your dates flexible? Find out the best times to travel from St. Louis to Harlingen based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from St. Louis to Harlingen?
Only Economy Class is available on flights from St. Louis to Harlingen.
How long is a flight from St. Louis to Harlingen?
A nonstop flight from St. Louis to Harlingen takes 00m, covering 962 miles.
Do I need a passport to fly from St. Louis to Harlingen?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
How much should I expect to pay for a St. Louis to Harlingen flight?
Round-trip flights from St. Louis to Harlingen range from $330 to $417, with an average of $390 over the past 12 months. Anything below $330 counts as a good deal.
Have flight prices from St. Louis to Harlingen changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $257 to $1,068. That means the highest observed fare was about 4x higher than the lowest one.
How are flight prices from St. Louis to Harlingen looking right now?
One-way fares from St. Louis to Harlingen are currently higher than usual. Average one-way flight prices are about $282, which is 11% above the typical average for this route.
What car rental options are available at Harlingen Valley Intl Airport (HRL)?
Harlingen Valley Intl Airport (HRL) hosts 5 major car rental companies, with daily rates starting from around $30 for economy cars. Top options include:

• Dollar
• Budget
• Hertz
• Enterprise Rent-A-Car
• Avis
Which airports can I use when flying from St. Louis to Harlingen?
Flights from St. Louis to Harlingen usually depart from Lambert-St Louis (STL) and arrive at Harlingen Valley Intl (HRL).
Which airports do connecting flights from St. Louis to Harlingen pass through?
One-stop flights from St. Louis to Harlingen most commonly connect through:

• Dallas/Fort Worth (DFW) - 47% of one-stop connections
• Houston Hobby (HOU) - 26% of one-stop connections
• Houston George Bush Intcntl (IAH) - 26% of one-stop connections
Can I save money by using flexible dates for flights from St. Louis to Harlingen?
Yes. Flexible dates can save you up to 38% on flights from St. Louis to Harlingen. Monday is the cheapest departure day at $256 round-trip on average, while Wednesday is the most expensive at $407, a difference of $151.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
How much time can I save by choosing a different layover airport from St. Louis to Harlingen?
Flying via Houston Hobby (HOU) gives the shortest average 1-stop total travel time at 4h 58m, compared with 5h 03m via Dallas/Fort Worth (DFW) and 5h 13m via Houston George Bush Intcntl (IAH).

If your dates are flexible, aim for a Monday departure and avoid flying on Wednesday. On this route, Monday flights average $256, about $151 less than Wednesday fares (37% savings) based on the last 12 months.
If you can choose when to travel, plan your St. Louis to Harlingen trip for January. Fares historically average $256 round-trip in that month - typically $243 less than the most expensive month, which is July (based on the last 12 months).

More options for your flight from St. Louis to Harlingen

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STL - HRL

$175 Find Cheap Flights from St. Louis to Harlingen - Compare and Save

Everything you should know

Cheap Flights from St. Louis to Harlingen (STL-HRL)

Recent round-trip flight deals from St. Louis to Harlingen

Recent one-way flight deals from St. Louis to Harlingen

Recent last minute flight deals from St. Louis to Harlingen

Price, demand and travel trends for St. Louis to Harlingen flights

How much is a round-trip flight from St. Louis to Harlingen?

What's the cheapest day of the week to fly from St. Louis to Harlingen?

Which airline is the cheapest to fly from St. Louis to Harlingen?

What’s the most popular layover airport when flying from St. Louis to Harlingen?

What is the cheapest layover airport when flying from St. Louis to Harlingen?

When flying from St. Louis to Harlingen which airport offers the shortest layover?

Key details for St. Louis to Harlingen flights

Low season

High season

Cheapest flight

When to book flights from St. Louis to Harlingen

Your St. Louis to Harlingen flight questions, answered

Your guide to booking St. Louis to Harlingen flights

More options for your flight from St. Louis to Harlingen

Complete your trip to Harlingen with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from St. Louis to Harlingen

Find direct flights to and from St. Louis and Harlingen

Flights from domestic origins to Harlingen

Flights to other popular destinations