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

Delta, at $284, 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 22% 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.

What are the most popular airlines that fly from St. Louis to Harlingen, Texas?

When booking a flight from St. Louis to Harlingen, Texas, you may want to consider flying on American Airlines, Delta or United Airlines as they are the most popular for this route.

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 45% 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 February. 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.

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.

$284+ Flights from St. Louis to Harlingen, TX

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1. Tell us where you want to go

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Cheap flight deals from St. Louis to Harlingen

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$284 (Delta)
Popular in	February
Cheapest in	April
Average price	$421

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

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

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From Lambert-St Louis to Harlingen Valley Intl

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High demand for flights, 1% potential price rise

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Best time to find cheap flights, 1% potential price drop

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Average for round-trip flights in December 2024

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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 December 23, 2024.

Mon 12/305:21 amSTL - HRL

1 stop4h 24mAmerican Airlines

Sat 1/410:15 amHRL - STL

1 stop6h 24mAmerican Airlines

Deal found 12/22

$508

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 December 23, 2024.

Mon 1/66:00 amSTL - HRL

1 stop7h 51mDelta

Fri 1/102:46 pmHRL - STL

1 stop8h 28mDelta

Deal found 12/21

$284

Mon 1/65:29 pmSTL - HRL

1 stop6h 42mAmerican Airlines

Sat 1/1112:11 pmHRL - STL

1 stop6h 12mAmerican Airlines

Deal found 12/22

$288

Mon 1/63:10 pmSTL - HRL

2 stops8h 20mUnited Airlines

Fri 1/107:15 amHRL - STL

1 stop7h 22mUnited Airlines

Deal found 12/21

$323

Fri 1/176:55 amSTL - HRL

1 stop7h 15mSouthwest

Mon 1/202:55 pmHRL - STL

1 stop4h 50mSouthwest

Deal found 12/22

$386

Last-minute flights from St. Louis to Harlingen
Discover last-minute flight deals from St. Louis to Harlingen. Data last updated December 23, 2024 and is based on user searches.

Mon 12/305:21 amSTL - HRL

1 stop4h 24mAmerican Airlines

Sat 1/410:15 amHRL - STL

1 stop6h 24mAmerican Airlines

Deal found 12/22

$508

Mon 1/66:00 amSTL - HRL

1 stop7h 51mDelta

Fri 1/102:46 pmHRL - STL

1 stop8h 28mDelta

Deal found 12/21

$284

Mon 1/65:29 pmSTL - HRL

1 stop6h 42mAmerican Airlines

Sat 1/1112:11 pmHRL - STL

1 stop6h 12mAmerican Airlines

Deal found 12/22

$288

Mon 1/63:10 pmSTL - HRL

2 stops8h 20mUnited Airlines

Fri 1/107:15 amHRL - STL

1 stop7h 22mUnited Airlines

Deal found 12/21

$323

Fri 1/176:55 amSTL - HRL

1 stop7h 15mSouthwest

Mon 1/202:55 pmHRL - STL

1 stop4h 50mSouthwest

Deal found 12/22

$386

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

Mon 1/6

6:00 am-1:51 pm

1 stop7h 51m

Harlingen Valley Intl

Fri 1/10

2:46 pm-11:14 pm

1 stop8h 28m

$284

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Mon 1/6

5:29 pm-12:11 am

1 stop6h 42m

Harlingen Valley Intl

Sat 1/11

12:11 pm-6:23 pm

1 stop6h 12m

$288

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Mon 1/6

3:10 pm-11:30 pm

2 stops8h 20m

Harlingen Valley Intl

Fri 1/10

7:15 am-2:37 pm

1 stop7h 22m

$323

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Fri 1/17

6:55 am-2:10 pm

1 stop7h 15m

Harlingen Valley Intl

Mon 1/20

2:55 pm-7:45 pm

1 stop4h 50m

$386

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

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 December.

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

*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 in the morning, when flights are generally more expensive, you can save up to 6% on flights from St. Louis to Harlingen, Texas by exploring options for tickets at noon.

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

Southwest

8.1

Very good

4,780 reviews

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Southwest

8.1

Very good

4,780 reviews

Southwest

8.1

Very good

4,780 reviews

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Delta

8.0

Very good

8,588 reviews

Southwest

8.1

Very good

4,780 reviews

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

United Airlines

7.4

Good

9,020 reviews

Southwest

8.1

Very good

4,780 reviews

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

American Airlines

7.2

Good

10,000 reviews

Southwest

8.1

Very good

4,780 reviews

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Related info for your journey

What are the cheapest airlines flying from St. Louis to Harlingen, Texas round-trip?
Delta, at $284, 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 22% cheaper than the average price of flights available within the next 90 days to this destination.
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.
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 3 airlines flying from St. Louis to Harlingen

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$213	Average$348	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$257	Average$421	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$296	Average$426	FlexibilityNo cancel fee	On-time69%

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$284+ Cheap flights from St. Louis to Harlingen, TX (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 1/6. 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

Round-trip from

Popular in

Cheapest in

Average price

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 December 23, 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 December 23, 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 December.

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 December 23, 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

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.

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

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?

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 3 airlines flying from St. Louis to Harlingen

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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 December 23, 2024.