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$160+ 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 6/26. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — ORD
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
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 junio 12, 2025.

Round-trip from

$248
(Southwest)

One-way from

$160
(Southwest)

Popular in

June

Cheapest in

May

Average price

$545
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. 17% potential increase in price ($69 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($20 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 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 junio 12, 2025.

This Southwest deal was found by Cheapflights users on 6/12. 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.
mié. 8/2012:20 pmHRL - ORD
1 stop9h 10mSouthwest
dom. 8/247:30 amORD - HRL
1 stop6h 40mSouthwest
Deal found 6/12$248
This American Airlines deal was found by Cheapflights users on 6/10. 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.
mié. 8/135:25 amHRL - ORD
1 stop6h 57mAmerican Airlines
vie. 8/2210:25 amORD - HRL
1 stop7h 35mAmerican Airlines
Deal found 6/10$288
This eDestinos deal was found by Cheapflights users on 6/11. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/2312:10 pmHRL - ORD
1 stop6h 30mSun Country Air
vie. 11/289:10 pmORD - HRL
1 stop13h 21mSun Country Air
Deal found 6/11$304
This United Airlines deal was found by Cheapflights users on 6/10. 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.
jue. 10/25:27 pmHRL - ORD
1 stop6h 47mUnited Airlines
dom. 10/57:10 amORD - HRL
1 stop6h 09mUnited Airlines
Deal found 6/10$363

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 junio 12, 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

mié. 8/20

12:20 pm-9:30 pm

1 stop9h 10m

Chicago O'Hare Intl

dom. 8/24

7:30 am-2:10 pm

1 stop6h 40m

$248

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

mié. 8/13

5:25 am-12:22 pm

1 stop6h 57m

Chicago O'Hare Intl

vie. 8/22

10:25 am-6:00 pm

1 stop7h 35m

$288

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

dom. 11/23

12:10 pm-6:40 pm

1 stop6h 30m

Chicago O'Hare Intl

vie. 11/28

9:10 pm-10:31 am

1 stop13h 21m

$304

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

jue. 10/2

5:27 pm-12:14 am

1 stop6h 47m

Chicago O'Hare Intl

dom. 10/5

7:10 am-1:19 pm

1 stop6h 09m

$363

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

lun. 7/21

7:59 pm-12:59 am

1 stop5h 00m

$175

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

lun. 7/21

5:20 pm-9:38 am

2 stops16h 18m

$253

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 junio 12, 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.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 junio 12, 2025.
See what other customers who have flown with Southwest, United Airlines and American Airlines from Harlingen to Illinois have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

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
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

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
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

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
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

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.
Sun Country Air
6.9
Okay
345 reviews
Southwest
8.0
Very good
4,287 reviews

Overall

8.0

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

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.

  • What are the cheapest airlines to fly from Harlingen, Texas to Illinois one-way?

    One-way options have recently been found by users for as low as $160 on Southwest. Other airlines that offer cheap prices include American Airlines from $175 and United Airlines from $253 one-way.

  • 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$236Average$360FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$263Average$313FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$288Average$397FlexibilityNo cancel feeOn-time69%

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