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$130+ 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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — ORD
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
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 julio 3, 2025.

Round-trip from

$217
(United Airlines)

One-way from

$130
(American Airlines)

Popular in

June

Cheapest in

May

Average price

$373
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. 12% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/2. 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.
mié. 8/135:15 pmHRL - ORD
1 stop7h 00mUnited Airlines
mié. 8/204:50 pmORD - HRL
1 stop5h 02mUnited Airlines
Deal found 7/2$217
This Southwest deal was found by Cheapflights users on 7/3. 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.
mar. 8/192:10 pmHRL - ORD
2 stops7h 20mSouthwest
mar. 8/267:30 amORD - HRL
1 stop6h 05mSouthwest
Deal found 7/3$222
This American Airlines deal was found by Cheapflights users on 7/2. 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. 8/205:30 amHRL - ORD
1 stop5h 29mAmerican Airlines
sáb. 8/301:21 pmORD - HRL
1 stop4h 39mAmerican Airlines
Deal found 7/2$242

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 julio 3, 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. 8/13

5:15 pm-12:15 am

1 stop7h 00m

Chicago O'Hare Intl

mié. 8/20

4:50 pm-9:52 pm

1 stop5h 02m

$217

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

mar. 8/19

2:10 pm-9:30 pm

2 stops7h 20m

Chicago O'Hare Intl

mar. 8/26

7:30 am-1:35 pm

1 stop6h 05m

$222

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

mié. 8/20

5:30 am-10:59 am

1 stop5h 29m

Chicago O'Hare Intl

sáb. 8/30

1:21 pm-6:00 pm

1 stop4h 39m

$242

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

sáb. 8/2

8:10 pm-12:59 am

1 stop4h 49m

$130

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

vie. 8/15

6:40 am-1:05 pm

1 stop6h 25m

$135

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

sáb. 8/2

5:20 pm-12:15 am

1 stop6h 55m

$250

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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 julio 3, 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 julio 3, 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
4,266 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.0

Overall

8.0

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
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.0

Overall

8.0

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
8,861 reviews
Southwest
8.0
Very good
4,266 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.0

Overall

8.0

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
4,266 reviews

Boarding

8.2

Entertainment

7.6

Comfort

8.0

Food

7.0

Overall

8.0

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.

  • 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 $130 on American Airlines. Other airlines that offer cheap prices include Southwest from $135 and United Airlines from $250 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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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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$217Average$358FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$263Average$313FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$288Average$393FlexibilityNo cancel feeOn-time69%

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