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Harlingen

$169+ Cheap flights from Illinois to Harlingen, TX (HRL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — HRL
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheap flight deals from Illinois to Harlingen

Keep the following information in mind while searching for Illinois to Harlingen flight deals. Data was last updated June 16, 2025.

Round-trip from

$248
(Southwest)

One-way from

$169
(American Airlines)

Popular in

November

Cheapest in

April

Average price

$338
From Illinois to Harlingen Valley Intl
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One-way flight from Illinois to Harlingen Valley Intl
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Highest demand for flights based on searches. 4% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Illinois to Harlingen

Cheapest flights from Illinois to Harlingen
Explore the most affordable flight options available from Illinois to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2025.

This Southwest deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/194:20 pmORD - HRL
1 stop5h 10mSouthwest
Mon 9/226:40 amHRL - ORD
1 stop6h 25mSouthwest
Deal found 6/15$243
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/196:30 amSTL - HRL
1 stop7h 56mDelta
Sat 10/253:00 pmHRL - STL
1 stop8h 02mDelta
Deal found 6/16$254
This American Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/15:37 amSTL - HRL
1 stop3h 58mAmerican Airlines
Sat 7/58:10 pmHRL - STL
1 stop4h 04mAmerican Airlines
Deal found 6/16$271
This American Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/26:20 pmORD - HRL
1 stop5h 46mAmerican Airlines
Sat 8/95:25 amHRL - ORD
1 stop5h 34mAmerican Airlines
Deal found 6/15$287
This Southwest deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/197:00 amSTL - HRL
1 stop5h 55mSouthwest
Sat 10/256:40 amHRL - STL
2 stops6h 15mSouthwest
Deal found 6/16$318
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/15:00 amSTL - HRL
2 stops8h 20mUnited Airlines
Sat 7/55:10 amHRL - STL
2 stops9h 27mUnited Airlines
Deal found 6/16$380
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/125:56 pmORD - HRL
2 stops22h 06mUnited Airlines
Mon 9/155:25 pmHRL - ORD
1 stop6h 50mUnited Airlines
Deal found 6/16$380
This Sun Country Air deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:45 amORD - HRL
1 stop23h 08mSun Country Air
Sun 1/411:49 amHRL - ORD
1 stop7h 01mSun Country Air
Deal found 6/16$385
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:20 amORD - HRL
1 stop8h 16mDelta
Fri 1/23:35 pmHRL - ORD
1 stop7h 03mDelta
Deal found 6/15$709

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Harlingen that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 16, 2025.
Use the filters below to find and compare flights from Illinois to Harlingen that are best for you.

Fly from

Illinois

Fly to

Harlingen

Route

Depart

Return

Price

ChicagoHarlingen

ORD - HRL

ORDHRL

Chicago O'Hare Intl

Fri 9/19

4:20 pm-9:30 pm

1 stop5h 10m

Harlingen Valley Intl

Mon 9/22

6:40 am-1:05 pm

1 stop6h 25m

$243

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Sun 10/19

6:30 am-2:26 pm

1 stop7h 56m

Harlingen Valley Intl

Sat 10/25

3:00 pm-11:02 pm

1 stop8h 02m

$254

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Tue 7/1

5:37 am-9:35 am

1 stop3h 58m

Harlingen Valley Intl

Sat 7/5

8:10 pm-12:14 am

1 stop4h 04m

$271

ChicagoHarlingen

ORD - HRL

ORDHRL

Chicago O'Hare Intl

Sat 8/2

6:20 pm-12:06 am

1 stop5h 46m

Harlingen Valley Intl

Sat 8/9

5:25 am-10:59 am

1 stop5h 34m

$287

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Sun 10/19

7:00 am-12:55 pm

1 stop5h 55m

Harlingen Valley Intl

Sat 10/25

6:40 am-12:55 pm

2 stops6h 15m

$318

St. LouisHarlingen

STL - HRL

STLHRL

Lambert-St Louis

Tue 7/1

5:00 am-1:20 pm

2 stops8h 20m

Harlingen Valley Intl

Sat 7/5

5:10 am-2:37 pm

2 stops9h 27m

$380

ChicagoHarlingen

ORD - HRL

ORDHRL

Chicago O'Hare Intl

Fri 9/12

5:56 pm-4:02 pm

2 stops22h 06m

Harlingen Valley Intl

Mon 9/15

5:25 pm-12:15 am

1 stop6h 50m

$380

ChicagoHarlingen

ORD - HRL

ORDHRL

Chicago O'Hare Intl

Sat 8/2

6:20 pm-12:06 am

1 stop5h 46m

$169

ChicagoHarlingen

ORD - HRL

ORDHRL

Chicago O'Hare Intl

Sat 8/2

9:30 pm-1:20 pm

2 stops15h 50m

$232

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Best time to book a flight from Illinois to Harlingen

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

Cheapflights Insights

Everything you need to know about your flight from Illinois to Harlingen

What is the cheapest month to book a flight from Illinois to Harlingen, Texas?

Currently, April is the cheapest month in which you can book a flight from Illinois to Harlingen, Texas (average of $267). Flying from Illinois to Harlingen, Texas in June is currently the most expensive (average of $395). 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 IL to HRL?

Find hourly flight availability from Illinois 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 June 16, 2025.

When flying from Illinois to Harlingen, Texas, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Harlingen by month

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

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

Get insights into the airlines that provide service to Harlingen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Harlingen. Reviews last updated June 16, 2025.
Read through reviews of airlines operating flights from Illinois to Harlingen, such as Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,278 reviews

Boarding

8.2

Crew

8.6

Food

7.1

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,278 reviews
Southwest
8.0
Very good
4,278 reviews

Boarding

8.2

Crew

8.6

Food

7.1

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,963 reviews
Southwest
8.0
Very good
4,278 reviews

Boarding

8.2

Crew

8.6

Food

7.1

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,801 reviews
Southwest
8.0
Very good
4,278 reviews

Boarding

8.2

Crew

8.6

Food

7.1

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,278 reviews

Boarding

8.2

Crew

8.6

Food

7.1

Comfort

8.0

Entertainment

7.6

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

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

  • What airport do you fly into for flights to Harlingen from Illinois?

    Most people fly into Harlingen Valley Intl (HRL) if they book a flight to Harlingen from Illinois. Valley Intl is conveniently located just 3.7 mi from Harlingen’s city center.

  • Can I find deals for flights from Illinois to Harlingen that include hotel bookings?

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

  • How can I find direct flights from Illinois to Harlingen?

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

  • Can I find deals for business class flights from Illinois to Harlingen?

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Harlingen, Texas?

    Currently, April is the cheapest month in which you can book a flight from Illinois to Harlingen, Texas (average of $267). Flying from Illinois to Harlingen, Texas in June is currently the most expensive (average of $395). 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

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Alternative routes for Illinois to Harlingen

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Top 3 airlines flying from Illinois to Harlingen

Discover the top 3 airlines that operate flights from Illinois to Harlingen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$208Average$385FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$226Average$488FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$268Average$499FlexibilityNo cancel feeOn-time71%

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