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Cheap flights from St. Louis to Harlingen from $119

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:15 am - 1:30 pmSTL  Lambert-St Louis-HRL Harlingen Valley Intl
7h 15m1 stop Houston George Bush Intcntl
United Airlines Logo
5:16 pm - 10:13 pmHRL  Harlingen Valley Intl-STL Lambert-St Louis
4h 57m1 stop Houston George Bush Intcntl
$225United Airlines
Fri, Jan 1 - Tue, Jan 5
American Airlines Logo
5:00 am - 10:14 amSTL  Lambert-St Louis-HRL Harlingen Valley Intl
5h 14m1 stop Dallas/Fort Worth
American Airlines Logo
6:41 pm - 11:33 pmHRL  Harlingen Valley Intl-STL Lambert-St Louis
4h 52m1 stop Dallas/Fort Worth
$285American Airlines
Tue, Nov 3 - Sun, Nov 8
United Airlines Logo
7:18 am - 7:39 pmSTL  Lambert-St Louis-HRL Harlingen Valley Intl
12h 21m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
5:16 pm - 10:13 pmHRL  Harlingen Valley Intl-STL Lambert-St Louis
4h 57m1 stop Houston George Bush Intcntl
$288United Airlines
Thu, Dec 31 - Tue, Jan 5
United Airlines Logo
9:35 am - 7:39 pmSTL  Lambert-St Louis-HRL Harlingen Valley Intl
10h 04m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
5:16 pm - 10:13 pmHRL  Harlingen Valley Intl-STL Lambert-St Louis
4h 57m1 stop Houston George Bush Intcntl
$292United Airlines
Fri, Jan 1 - Tue, Jan 5
American Airlines Logo
5:40 am - 10:08 amSTL  Lambert-St Louis-HRL Harlingen Valley Intl
4h 28m1 stop Dallas/Fort Worth
American Airlines Logo
6:42 pm - 11:42 pmHRL  Harlingen Valley Intl-STL Lambert-St Louis
5h 00m1 stop Dallas/Fort Worth
$307American Airlines
Sat, Oct 24 - Fri, Oct 30
American Airlines Logo
5:40 am - 10:08 amSTL  Lambert-St Louis-HRL Harlingen Valley Intl
4h 28m1 stop Dallas/Fort Worth
American Airlines Logo
6:42 pm - 11:42 pmHRL  Harlingen Valley Intl-STL Lambert-St Louis
5h 00m1 stop Dallas/Fort Worth
$308American Airlines
Sat, Oct 24 - Fri, Oct 30
United Airlines Logo
6:15 am - 1:30 pmSTL  Lambert-St Louis-HRL Harlingen Valley Intl
7h 15m1 stop Houston George Bush Intcntl
United Airlines Logo
5:16 pm - 10:13 pmHRL  Harlingen Valley Intl-STL Lambert-St Louis
4h 57m1 stop Houston George Bush Intcntl
$325United Airlines
Thu, Dec 31 - Tue, Jan 5
Southwest Logo
5:30 am - 10:55 amSTL  Lambert-St Louis-HRL Harlingen Valley Intl
5h 25m2 stops Dallas Love Field Austin Bergstrom
Southwest Logo
7:25 am - 1:50 pmHRL  Harlingen Valley Intl-STL Lambert-St Louis
6h 25m2 stops Austin Bergstrom Dallas Love Field
$365Southwest
Fri, Jan 1 - Tue, Jan 5
Southwest Logo
5:30 am - 10:55 amSTL  Lambert-St Louis-HRL Harlingen Valley Intl
5h 25m2 stops Dallas Love Field Austin Bergstrom
Southwest Logo
7:25 am - 1:50 pmHRL  Harlingen Valley Intl-STL Lambert-St Louis
6h 25m2 stops Austin Bergstrom Dallas Love Field
$365Southwest
Thu, Dec 31 - Tue, Jan 5
Southwest Logo
12:50 pm - 5:50 pmSTL  Lambert-St Louis-HRL Harlingen Valley Intl
5h 00m1 stop Austin Bergstrom
Southwest Logo
6:15 am - 1:05 pmHRL  Harlingen Valley Intl-STL Lambert-St Louis
6h 50m2 stops Houston Hobby Dallas Love Field
$369Southwest
Fri, Oct 2 - Tue, Oct 6

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Southwest flights from St. Louis to Harlingen

Our best Southwest deals on St. Louis to Harlingen flight tickets
Southwest
Dec 31
STL5:30 amLambert-St Louis
5h 25m
2 stops
HRL10:55 amHarlingen Valley Intl
Jan 5
HRL7:25 amHarlingen Valley Intl
6h 25m
2 stops
STL1:50 pmLambert-St Louis
$365
Southwest
Oct 1
STL8:30 amLambert-St Louis
4h 45m
1 stop
HRL1:15 pmHarlingen Valley Intl
Oct 6
HRL6:15 amHarlingen Valley Intl
6h 50m
2 stops
STL1:05 pmLambert-St Louis
$369
Southwest
Oct 1
STL4:05 pmLambert-St Louis
7h 30m
2 stops
HRL11:35 pmHarlingen Valley Intl
Oct 6
HRL6:15 amHarlingen Valley Intl
6h 50m
2 stops
STL1:05 pmLambert-St Louis
$374

American Airlines flights from St. Louis to Harlingen

Our best American Airlines deals on St. Louis to Harlingen flight tickets
American Airlines
Nov 3
STL5:00 amLambert-St Louis
5h 14m
1 stop
HRL10:14 amHarlingen Valley Intl
Nov 8
HRL6:41 pmHarlingen Valley Intl
4h 52m
1 stop
STL11:33 pmLambert-St Louis
$285
American Airlines
Oct 24
STL5:40 amLambert-St Louis
4h 28m
1 stop
HRL10:08 amHarlingen Valley Intl
Oct 30
HRL6:42 pmHarlingen Valley Intl
5h 00m
1 stop
STL11:42 pmLambert-St Louis
$307
American Airlines
Oct 24
STL5:40 amLambert-St Louis
4h 28m
1 stop
HRL10:08 amHarlingen Valley Intl
Oct 30
HRL6:42 pmHarlingen Valley Intl
5h 00m
1 stop
STL11:42 pmLambert-St Louis
$308

momondo Fare Finder

 
Use the filters below to find and compare flights from St. Louis to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisHarlingen

STL Lambert-St Louis - HRL Harlingen Valley Intl

STLHRL

Lambert-St Louis

Fri 1/1

6:15 am-1:30 pm

1 stop7h 15m

Harlingen Valley Intl

Tue 1/5

5:16 pm-10:13 pm

1 stop4h 57m

$225

St. LouisHarlingen

STL Lambert-St Louis - HRL Harlingen Valley Intl

STLHRL

Lambert-St Louis

Tue 11/3

5:00 am-10:14 am

1 stop5h 14m

Harlingen Valley Intl

Sun 11/8

6:41 pm-11:33 pm

1 stop4h 52m

$285

St. LouisHarlingen

STL Lambert-St Louis - HRL Harlingen Valley Intl

STLHRL

Lambert-St Louis

Thu 12/31

7:18 am-7:39 pm

2 stops12h 21m

Harlingen Valley Intl

Tue 1/5

5:16 pm-10:13 pm

1 stop4h 57m

$288

St. LouisHarlingen

STL Lambert-St Louis - HRL Harlingen Valley Intl

STLHRL

Lambert-St Louis

Fri 1/1

9:35 am-7:39 pm

2 stops10h 04m

Harlingen Valley Intl

Tue 1/5

5:16 pm-10:13 pm

1 stop4h 57m

$292
Quickest round-trip

St. LouisHarlingen

STL Lambert-St Louis - HRL Harlingen Valley Intl

STLHRL

Lambert-St Louis

Sat 10/24

5:40 am-10:08 am

1 stop4h 28m

Harlingen Valley Intl

Fri 10/30

6:42 pm-11:42 pm

1 stop5h 00m

$307

St. LouisHarlingen

STL Lambert-St Louis - HRL Harlingen Valley Intl

STLHRL

Lambert-St Louis

Sat 10/24

5:40 am-10:08 am

1 stop4h 28m

Harlingen Valley Intl

Fri 10/30

6:42 pm-11:42 pm

1 stop5h 00m

$308

St. LouisHarlingen

STL Lambert-St Louis - HRL Harlingen Valley Intl

STLHRL

Lambert-St Louis

Thu 12/31

6:15 am-1:30 pm

1 stop7h 15m

Harlingen Valley Intl

Tue 1/5

5:16 pm-10:13 pm

1 stop4h 57m

$325

St. LouisHarlingen

STL Lambert-St Louis - HRL Harlingen Valley Intl

STLHRL

Lambert-St Louis

Fri 1/1

5:30 am-10:55 am

2 stops5h 25m

Harlingen Valley Intl

Tue 1/5

7:25 am-1:50 pm

2 stops6h 25m

$365

St. LouisHarlingen

STL Lambert-St Louis - HRL Harlingen Valley Intl

STLHRL

Lambert-St Louis

Thu 12/31

5:30 am-10:55 am

2 stops5h 25m

Harlingen Valley Intl

Tue 1/5

7:25 am-1:50 pm

2 stops6h 25m

$365

St. LouisHarlingen

STL Lambert-St Louis - HRL Harlingen Valley Intl

STLHRL

Lambert-St Louis

Fri 10/2

12:50 pm-5:50 pm

1 stop5h 00m

Harlingen Valley Intl

Tue 10/6

6:15 am-1:05 pm

2 stops6h 50m

$369

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Harlingen from

How to get the cheapest flight ticket from St. Louis 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 September, then book flights to Harlingen from St. Louis during January instead. Flights to Harlingen in January, while not as cheap as those in September, still average around $256.

Can stopping save me money on St. Louis to Harlingen flights?

You could potentially save up to 67% on your flight if you consider stops on a St. Louis to Harlingen flight.

When to book flights from St. Louis to Harlingen

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Harlingen according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Harlingen (STL to HRL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Harlingen

Best Price Found

$119

Fastest flight time

4h 45m

Direct flights

None
The best one-way flight to Harlingen from St. Louis in the past 72 hours is $119. The best round-trip flight deal from St. Louis to Harlingen found on momondo in the last 72 hours is $225.
The fastest flight from St. Louis to Harlingen takes 4h 45m
There are no direct flights from St. Louis to Harlingen. There are no popular flight routes from St. Louis to Harlingen.
Search flight deals

Frequently asked questions about flying from St. Louis to Harlingen

  • How far is Lambert-St Louis to Harlingen Valley Intl by plane?

    There are 962.6 mi between Lambert-St Louis and Harlingen Valley Intl. In terms of flight time, this usually takes a little over 4h 45m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Harlingen Valley Intl Airport?

    Prices for flights from Lambert-St Louis Airport to Harlingen Valley Intl Airport were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Harlingen Valley Intl Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Harlingen Valley Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Harlingen Valley Intl Airport.

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

    The travel and health documents required for your trip to Harlingen Valley Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Harlingen Valley Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Harlingen?

Best airlines flying from St. Louis to Harlingen

Compare and see reviews for airlines that fly from St. Louis to Harlingen with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $212Free CancellationRating
7.1
12,076 reviews
Search American Airlines flights
SouthwestPriceFrom $244Free CancellationRating
8.0
4,188 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Harlingen?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Harlingen. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from St. Louis to Harlingen with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Harlingen flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Harlingen?

Once you have performed a search for St. Louis to Harlingen flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from St. Louis to Harlingen now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Harlingen and let you know when they change.

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