What are the cheapest airlines flying from St. Louis to Harlingen, Texas round-trip?

Delta, at $288, was found to be the cheapest airline from St. Louis to Harlingen, Texas.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Delta is 20% cheaper than the average price of flights available within the next 90 days to this destination.

What is the cheapest day to fly from St. Louis to Harlingen, Texas?

Travelers seeking maximum savings on their St. Louis to Harlingen, Texas flight should consider departing on Monday mornings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How recently were the St. Louis to Harlingen, Texas flight deals updated?

The St. Louis to Harlingen, Texas flight deals you see on this page were last updated on 10/30.

Are there last-minute flights available from St. Louis to Harlingen, Texas for under $400?

There are currently 2+ open flights from St. Louis to Harlingen, Texas within the next 7 days for less than $400.

Can I find flights from St. Louis to Harlingen, Texas for under $300 on Cheapflights?

Yes, there are multiple flights from St. Louis to Harlingen, Texas for under $300. The cheapest flight booked recently is on Delta for just $288, but on average you can expect to pay $447.

What is the cheapest day to fly round-trip from St. Louis to Harlingen, Texas?

Departing on a Sunday is a good option for securing a great price. You can expect to save up to 52% when planning your travel around this day of the week.

What is the cheapest month to fly from St. Louis to Harlingen, Texas?

Flights from St. Louis to Harlingen, Texas lean towards being more expensive in March. Prices are generally better when you fly from St. Louis to Harlingen, Texas in April, with the cheapest ticket starting at $215.

Most accurate provider : When it comes to deals on St. Louis-Harlingen, Texas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Harlingen, Texas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Harlingen, Texas flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Harlingen, Texas 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 St. Louis-Harlingen, Texas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What does STL to HRL mean?

This is defined as Lambert-St Louis Airport (STL) and Harlingen Valley Intl Airport (HRL). Codes like Harlingen Valley Intl Airport are often used to just call airports uniquely.

Can I find deals for flights from St. Louis to Harlingen that include hotel bookings?

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

How can I find direct flights from St. Louis to Harlingen?

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

Can I find deals for business class flights from St. Louis to Harlingen?

Yes. Cheapflights offers flight deals from St. Louis 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.

Can I find deals on last-minute flights from St. Louis to Harlingen?

Yes, you can often find last-minute deals on St. Louis to Harlingen flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

Can I find deals for flights from St. Louis to Harlingen that allow pets onboard?

Many airlines flying from St. Louis to Harlingen offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Can I find deals for flights from St. Louis to Harlingen that include extra baggage allowance?

The amount of baggage you can bring on your St. Louis to Harlingen flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Can I find deals on flights from St. Louis to Harlingen with specific airlines?

Yes, Cheapflights allows you to browse and filter St. Louis to Harlingen flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

$273+ Flights from St. Louis, Missouri to Harlingen, Texas

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from St. Louis to Harlingen with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Harlingen

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	March
Cheapest in	April
Average price	$393
Round-trip from	$288 (Delta)

Provider with most accurate pricing for Lambert-St Louis-Harlingen Valley Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lambert-St Louis-Harlingen Valley Intl flights.

Search Deals

High demand for flights, 18% potential price rise

Search Deals

Best time to find cheap flights, 29% potential price drop

Search Deals

Average for round-trip flights in October 2024

Search Deals

From Lambert-St Louis to Harlingen Valley Intl

Search Deals

Find flight deals from St. Louis to Harlingen

Cheapest flights from St. Louis to Harlingen
Explore the most affordable flight options available from St. Louis to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

Thu 11/146:00 amSTL - HRL

1 stop8h 28mDelta

Mon 11/183:23 pmHRL - STL

1 stop6h 32mDelta

Deal found 10/30

$288

Thu 11/145:45 amSTL - HRL

2 stops9h 49mAmerican Airlines

Mon 11/185:49 amHRL - STL

1 stop7h 10mAmerican Airlines

Deal found 10/30

$313

Wed 11/274:54 pmSTL - HRL

1 stop6h 34mUnited Airlines

Sat 11/305:30 pmHRL - STL

1 stop6h 00mUnited Airlines

Deal found 10/30

$356

Thu 10/3112:45 pmSTL - HRL

2 stops7h 20mSouthwest

Sun 11/310:10 amHRL - STL

2 stops6h 50mSouthwest

Deal found 10/30

$498

Wed 11/271:00 pmSTL - HRL

3 stops21h 49mMultiple Airlines

Sun 12/111:55 amHRL - STL

3 stops24h 15mMultiple Airlines

Deal found 10/30

$834

Best flights from St. Louis to Harlingen
Discover carefully curated flight deals from St. Louis to Harlingen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 31, 2024.

Thu 11/146:00 amSTL - HRL

1 stop8h 28mDelta

Mon 11/183:23 pmHRL - STL

1 stop6h 32mDelta

Deal found 10/30

$288

Thu 11/145:45 amSTL - HRL

2 stops9h 49mAmerican Airlines

Mon 11/185:49 amHRL - STL

1 stop7h 10mAmerican Airlines

Deal found 10/30

$313

Mon 1/66:00 amSTL - HRL

1 stop5h 21mUnited Airlines

Sat 1/1112:10 pmHRL - STL

2 stops9h 35mUnited Airlines

Deal found 10/31

$355

Wed 11/271:00 pmSTL - HRL

3 stops21h 49mMultiple Airlines

Sun 12/111:55 amHRL - STL

3 stops24h 15mMultiple Airlines

Deal found 10/30

$834

Last-minute flights from St. Louis to Harlingen
Discover last-minute flight deals from St. Louis to Harlingen. Data last updated October 31, 2024 and is based on user searches.

Thu 10/3112:45 pmSTL - HRL

2 stops7h 20mSouthwest

Sun 11/310:10 amHRL - STL

2 stops6h 50mSouthwest

Deal found 10/30

$498

Thu 11/76:06 amSTL - HRL

1 stop8h 20mDelta

Mon 11/113:23 pmHRL - STL

1 stop6h 32mDelta

Deal found 10/30

$368

Thu 11/710:00 amSTL - HRL

2 stops7h 40mAmerican Airlines

Mon 11/115:49 amHRL - STL

1 stop7h 10mAmerican Airlines

Deal found 10/30

$373

Thu 11/146:00 amSTL - HRL

1 stop8h 28mDelta

Mon 11/183:23 pmHRL - STL

1 stop6h 32mDelta

Deal found 10/30

$288

Thu 11/145:45 amSTL - HRL

2 stops9h 49mAmerican Airlines

Mon 11/185:49 amHRL - STL

1 stop7h 10mAmerican Airlines

Deal found 10/30

$313

Wed 11/274:54 pmSTL - HRL

1 stop6h 34mUnited Airlines

Sat 11/305:30 pmHRL - STL

1 stop6h 00mUnited Airlines

Deal found 10/30

$356

Wed 11/271:00 pmSTL - HRL

3 stops21h 49mMultiple Airlines

Sun 12/111:55 amHRL - STL

3 stops24h 15mMultiple Airlines

Deal found 10/30

$834

Find flights from St. Louis to Harlingen within your budget

Fly from

Fly to

Route

Depart

Return

Price

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Thu 11/14

9:39 am-3:34 pm

1 stop5h 55m

Harlingen Valley Intl

Thu 11/21

10:17 am-4:37 pm

1 stop6h 20m

$273

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Thu 11/14

6:00 am-2:28 pm

1 stop8h 28m

Harlingen Valley Intl

Mon 11/18

3:23 pm-9:55 pm

1 stop6h 32m

$288

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Mon 1/6

6:00 am-11:21 am

1 stop5h 21m

Harlingen Valley Intl

Sat 1/11

12:10 pm-9:45 pm

2 stops9h 35m

$355

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Fri 1/10

3:15 pm-9:45 pm

2 stops6h 30m

Harlingen Valley Intl

Fri 2/28

6:10 am-2:15 pm

2 stops8h 05m

$367

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Wed 11/27

1:00 pm-10:49 am

3 stops21h 49m

Harlingen Valley Intl

Sun 12/1

11:55 am-12:10 pm

3 stops24h 15m

$834

Flights are sorted by cheapest first

Deals found on 10/31

Compare providers for flights from St. Louis to Harlingen

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Harlingen in October.

Provider	Price Accuracy	Trust Score*	Cancellation Policy
Expedia	Price Accuracy1 star	Trust Score*3 stars	Cancellation PolicyAirline Policy
FlightHub	Price Accuracy3 stars	Trust Score*3 stars	Cancellation PolicyAirline Policy
eDreams	Price Accuracy3 stars	Trust Score*3 stars	Cancellation PolicyAirline Policy

*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 St. Louis-Harlingen, Texas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Harlingen, Texas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Harlingen, Texas flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Harlingen, Texas 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 St. Louis-Harlingen, Texas 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 St. Louis to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from St. Louis 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.

Travel insights for flights from St. Louis to Harlingen

Get recent, data-driven insights about flights from St. Louis to Harlingen including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Harlingen, Texas?

Currently, April is the cheapest month in which you can book a flight from St. Louis to Harlingen, Texas (average of $267). Flying from St. Louis to Harlingen, Texas in July is currently the most expensive (average of $420). 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.

What is the cheapest time of day to fly from STL to HRL?

Unlike at noon, when flights are generally more expensive, you can save up to 18% on flights from St. Louis to Harlingen, Texas by exploring options for tickets in the afternoon.

Rainfall in Harlingen by month

In terms of precipitation, rainfall in Harlingen, Texas ranges from 1.1 - 5.2 inches per month. September is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Harlingen, Texas when rainfall is around 1.1 in.

Temperature in Harlingen by month

If weather is an important factor for your trip to Harlingen, Texas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 60.8 F).

Reviews of airlines servicing Harlingen

Read through reviews of airlines operating flights from St. Louis to Harlingen, such as Delta and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,835 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

8,835 reviews

Delta

8.0

Very good

8,835 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

9,240 reviews

Delta

8.0

Very good

8,835 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

8,835 reviews

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Can I find flights from St. Louis to Harlingen, Texas for under $300 on Cheapflights?
Yes, there are multiple flights from St. Louis to Harlingen, Texas for under $300. The cheapest flight booked recently is on Delta for just $288, but on average you can expect to pay $447.
Are there last-minute flights available from St. Louis to Harlingen, Texas for under $400?
There are currently 2+ open flights from St. Louis to Harlingen, Texas within the next 7 days for less than $400.
What are the cheapest airlines flying from St. Louis to Harlingen, Texas round-trip?
Delta, at $288, was found to be the cheapest airline from St. Louis to Harlingen, Texas.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Delta is 20% cheaper than the average price of flights available within the next 90 days to this destination.
What does STL to HRL mean?
This is defined as Lambert-St Louis Airport (STL) and Harlingen Valley Intl Airport (HRL). Codes like Harlingen Valley Intl Airport are often used to just call airports uniquely.
Can I find deals for flights from St. Louis to Harlingen that include extra baggage allowance?
The amount of baggage you can bring on your St. Louis to Harlingen flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.
Can I find deals on flights from St. Louis to Harlingen with specific airlines?
Yes, Cheapflights allows you to browse and filter St. Louis to Harlingen flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.
Can I find deals for flights from St. Louis to Harlingen that include hotel bookings?
Yes. In addition to deals on St. Louis to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Harlingen?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Harlingen.
Can I find deals for business class flights from St. Louis to Harlingen?
Yes. Cheapflights offers flight deals from St. Louis 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.
Can I find deals for flights from St. Louis to Harlingen that allow pets onboard?
Many airlines flying from St. Louis to Harlingen offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.
Can I find deals on last-minute flights from St. Louis to Harlingen?
Yes, you can often find last-minute deals on St. Louis to Harlingen flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.
How recently were the St. Louis to Harlingen, Texas flight deals updated?
The St. Louis to Harlingen, Texas flight deals you see on this page were last updated on 10/30.
What is the cheapest month to book a flight from St. Louis to Harlingen, Texas?
Currently, April is the cheapest month in which you can book a flight from St. Louis to Harlingen, Texas (average of $267). Flying from St. Louis to Harlingen, Texas in July is currently the most expensive (average of $420). 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

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from St. Louis to Harlingen

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$215	Average$373	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$296	Average$434	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

View all available airlines

$273+ Cheap flights from St. Louis to Harlingen (STL - HRL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Harlingen with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Harlingen

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Round-trip from

Find flight deals from St. Louis to Harlingen

Cheapest flights from St. Louis to HarlingenExplore the most affordable flight options available from St. Louis to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

Explore the most affordable flight options available from St. Louis to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

Find flights from St. Louis to Harlingen within your budget

Compare providers for flights from St. Louis 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 St. Louis to Harlingen in October.

Best time to book a flight from St. Louis to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from St. Louis with our price prediction graph.

Travel insights for flights from St. Louis to Harlingen

Get recent, data-driven insights about flights from St. Louis to Harlingen including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Harlingen, Texas?

What is the cheapest time of day to fly from STL to HRL?

Find hourly flight availability from St. Louis to Harlingen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2024.

Rainfall in Harlingen by month

Plan your trip to Harlingen by taking into account the average rainfall totals by month.

Temperature in Harlingen by month

Plan your trip to Harlingen by taking into account the average temperature totals by month.

Reviews of airlines servicing Harlingen

Read through reviews of airlines operating flights from St. Louis to Harlingen, such as Delta and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Harlingen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find flights from St. Louis to Harlingen, Texas for under $300 on Cheapflights?

Are there last-minute flights available from St. Louis to Harlingen, Texas for under $400?

What are the cheapest airlines flying from St. Louis to Harlingen, Texas round-trip?

What does STL to HRL mean?

Can I find deals for flights from St. Louis to Harlingen that include extra baggage allowance?

Can I find deals on flights from St. Louis to Harlingen with specific airlines?

Can I find deals for flights from St. Louis to Harlingen that include hotel bookings?

How can I find direct flights from St. Louis to Harlingen?

Can I find deals for business class flights from St. Louis to Harlingen?

Can I find deals for flights from St. Louis to Harlingen that allow pets onboard?

Can I find deals on last-minute flights from St. Louis to Harlingen?

How recently were the St. Louis to Harlingen, Texas flight deals updated?

What is the cheapest month to book a flight from St. Louis to Harlingen, Texas?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Harlingen

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from St. Louis to Harlingen

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from St. Louis to Harlingen
Explore the most affordable flight options available from St. Louis to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.