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$109+ Cheap flights from Harlingen, TX (HRL) to Illinois

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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — ORD
août 24 — août 311
dim. 8/24
dim. 8/31
1 adult, Economy
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Cheap flight deals from Harlingen to Illinois

Keep the following information in mind while searching for Harlingen to Illinois flight deals. Data was last updated août 19, 2025.

Round-trip from

$217
(American Airlines)

One-way from

$109
(American Airlines)

Popular in

June

Cheapest in

September

Average price

$286
From Harlingen Valley Intl to Illinois
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One-way flight from Harlingen Valley Intl to Illinois
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Highest demand for flights based on searches. 8% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Harlingen to Illinois

Cheapest flights from Harlingen to Illinois
Explore the most affordable flight options available from Harlingen to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on août 19, 2025.

This American Airlines deal was found by Cheapflights users on 8/17. 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.
mar. 9/92:51 pmHRL - ORD
1 stop5h 10mAmerican Airlines
mar. 9/163:08 pmORD - HRL
1 stop7h 49mAmerican Airlines
Deal found 8/17$217
This American Airlines deal was found by Cheapflights users on 8/16. 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.
jeu. 9/256:19 pmHRL - ORD
1 stop5h 33mAmerican Airlines
sam. 9/278:25 amORD - HRL
1 stop5h 54mAmerican Airlines
Deal found 8/16$226
This Southwest deal was found by Cheapflights users on 8/18. 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.
mer. 9/247:25 amHRL - ORD
1 stop7h 55mSouthwest
dim. 9/283:10 pmORD - HRL
1 stop7h 45mSouthwest
Deal found 8/18$248
This American Airlines deal was found by Cheapflights users on 8/17. 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.
jeu. 11/1312:11 pmHRL - ORD
1 stop5h 04mAmerican Airlines
dim. 11/165:18 amORD - HRL
1 stop6h 20mAmerican Airlines
Deal found 8/17$334
This United Airlines deal was found by Cheapflights users on 8/18. 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.
mar. 9/95:20 pmHRL - ORD
2 stops18h 28mUnited Airlines
mar. 9/164:50 pmORD - HRL
1 stop5h 02mUnited Airlines
Deal found 8/18$340
This American Airlines deal was found by Cheapflights users on 8/18. 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.
mar. 9/26:30 pmHRL - ORD
1 stop5h 13mAmerican Airlines
sam. 9/65:16 pmORD - HRL
1 stop5h 41mAmerican Airlines
Deal found 8/18$341
This Southwest deal was found by Cheapflights users on 8/17. 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.
jeu. 11/135:45 amHRL - ORD
2 stops6h 30mSouthwest
dim. 11/162:15 pmORD - HRL
2 stops9h 20mSouthwest
Deal found 8/17$369
This United Airlines deal was found by Cheapflights users on 8/18. 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.
jeu. 9/255:00 amHRL - ORD
2 stops13h 37mUnited Airlines
sam. 9/277:10 amORD - HRL
1 stop6h 09mUnited Airlines
Deal found 8/18$381
This United Airlines deal was found by Cheapflights users on 8/18. 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.
jeu. 10/25:17 pmHRL - ORD
1 stop5h 20mUnited Airlines
dim. 10/59:00 amORD - HRL
1 stop7h 13mUnited Airlines
Deal found 8/18$386

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harlingen to Illinois 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 août 19, 2025.
Use the filters below to find and compare flights from Harlingen to Illinois that are best for you.

Fly from

Harlingen

Fly to

Illinois

Route

Depart

Return

Price

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

mar. 9/9

2:51 pm-8:01 pm

1 stop5h 10m

Chicago O'Hare Intl

mar. 9/16

3:08 pm-10:57 pm

1 stop7h 49m

$217

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

jeu. 9/25

6:19 pm-11:52 pm

1 stop5h 33m

Chicago O'Hare Intl

sam. 9/27

8:25 am-2:19 pm

1 stop5h 54m

$226

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

mer. 9/24

7:25 am-3:20 pm

1 stop7h 55m

Chicago O'Hare Intl

dim. 9/28

3:10 pm-10:55 pm

1 stop7h 45m

$248

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

jeu. 11/13

12:11 pm-5:15 pm

1 stop5h 04m

Chicago O'Hare Intl

dim. 11/16

5:18 am-11:38 am

1 stop6h 20m

$334

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

mar. 9/9

5:20 pm-9:38 am

2 stops16h 18m

Chicago O'Hare Intl

mar. 9/16

4:50 pm-9:52 pm

1 stop5h 02m

$340

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

mer. 9/24

6:35 pm-11:59 pm

1 stop5h 24m

$109

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

sam. 11/8

6:38 pm-11:37 pm

1 stop4h 59m

$109

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

ven. 9/12

6:35 pm-11:59 pm

1 stop5h 24m

$135

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

sam. 9/6

6:35 pm-11:59 pm

1 stop5h 24m

$160

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

sam. 11/8

10:30 am-9:50 pm

2 stops11h 20m

$165

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 14 results
1
2

Best time to book a flight from Harlingen to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Harlingen, Texas to Illinois (average of $245). Flying from Harlingen, Texas to Illinois in March is currently the most expensive (average of $321). 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 HRL to IL?

Find hourly flight availability from Harlingen to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated août 19, 2025.

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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated août 19, 2025.
Read reviews from past customers who have flown Southwest, United Airlines, and American Airlines from Harlingen to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

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
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

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
8,922 reviews
Southwest
8.0
Very good
4,246 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

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
4,246 reviews

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

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 Harlingen to Illinois. 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 from for flights from Harlingen to Illinois?

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

  • How long is the flight from Harlingen, Texas to Illinois?

    There are many flights that can get you from Harlingen, Texas to Illinois in 5h 10m. Fly via American Airlines or Southwest to get the fastest option. The distance between Harlingen, Texas and Illinois is about 1220 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Harlingen, Texas to Illinois (average of $245). Flying from Harlingen, Texas to Illinois in March is currently the most expensive (average of $321). 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 Harlingen to Illinois

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Top 3 airlines flying from Harlingen to Illinois

Discover the top 3 airlines that operate flights from Harlingen to Illinois. 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 août 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$217Average$392FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$252Average$308FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$288Average$393FlexibilityNo cancel feeOn-time69%

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