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$126+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — ORD
nov. 13 — nov. 201
jue. 11/13
jue. 11/20
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 octubre 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$237
(Delta)

One-way from

$210
(Delta)

Popular in

June

Cheapest in

May

Average price

$316
Provider with most accurate pricing for Harlingen Valley Intl-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Harlingen Valley Intl-Chicago (CHI) flights.
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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. 5% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octubre 14, 2025.

This Delta deal was found by Cheapflights users on 10/13. 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.
sáb. 11/13:39 pmHRL - ORD
1 stop5h 40mDelta
sáb. 11/86:08 amORD - HRL
1 stop8h 35mDelta
Deal found 10/13$237
This American Airlines deal was found by Cheapflights users on 10/14. 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. 11/185:40 amHRL - ORD
1 stop4h 57mAmerican Airlines
mié. 11/197:25 amORD - HRL
1 stop8h 07mAmerican Airlines
Deal found 10/14$275
This Delta deal was found by Cheapflights users on 10/14. 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.
sáb. 11/223:39 pmHRL - ORD
1 stop5h 57mDelta
sáb. 11/296:00 amORD - HRL
1 stop8h 43mDelta
Deal found 10/14$314
This American Airlines deal was found by Cheapflights users on 10/14. 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. 10/296:37 pmHRL - ORD
1 stop5h 05mAmerican Airlines
dom. 11/25:18 amORD - HRL
1 stop6h 20mAmerican Airlines
Deal found 10/14$319
This American Airlines deal was found by Cheapflights users on 10/14. 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.
jue. 11/135:40 amHRL - ORD
1 stop4h 57mAmerican Airlines
lun. 11/178:45 pmORD - HRL
1 stop14h 55mAmerican Airlines
Deal found 10/14$331
This Sun Country Air deal was found by Cheapflights users on 10/12. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/1911:55 amHRL - ORD
1 stop6h 43mSun Country Air
dom. 12/217:50 pmORD - HRL
1 stop14h 57mSun Country Air
Deal found 10/12$335
This United Airlines deal was found by Cheapflights users on 10/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/275:00 pmHRL - ORD
1 stop6h 10mUnited Airlines
vie. 10/312:21 pmORD - HRL
1 stop7h 33mUnited Airlines
Deal found 10/12$339
This American Airlines deal was found by Cheapflights users on 10/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/286:37 pmHRL - ORD
1 stop5h 05mAmerican Airlines
sáb. 11/112:03 pmORD - HRL
1 stop6h 02mAmerican Airlines
Deal found 10/12$349
This Delta deal was found by Cheapflights users on 10/13. 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.
mar. 10/213:39 pmHRL - ORD
1 stop5h 40mDelta
mar. 10/288:57 amORD - HRL
1 stop5h 46mDelta
Deal found 10/13$369
This Sun Country Air deal was found by Cheapflights users on 10/12. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/2612:22 pmHRL - ORD
1 stop19h 58mSun Country Air
dom. 11/307:52 pmORD - HRL
1 stop15h 09mSun Country Air
Deal found 10/12$375
This Southwest deal was found by Cheapflights users on 10/14. 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.
jue. 11/139:35 amHRL - ORD
2 stops12h 15mSouthwest
lun. 11/172:15 pmORD - HRL
2 stops7h 40mSouthwest
Deal found 10/14$383
This American Airlines deal was found by Cheapflights users on 10/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/315:23 amHRL - ORD
1 stop5h 36mAmerican Airlines
dom. 11/25:18 amORD - HRL
1 stop6h 20mAmerican Airlines
Deal found 10/12$399

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 octubre 14, 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

vie. 12/19

11:55 am-6:38 pm

1 stop6h 43m

Chicago O'Hare Intl

dom. 12/21

7:50 pm-10:47 am

1 stop14h 57m

$335

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

lun. 10/27

5:00 pm-11:10 pm

1 stop6h 10m

Chicago O'Hare Intl

vie. 10/31

2:21 pm-9:54 pm

1 stop7h 33m

$339

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

mar. 10/28

6:37 pm-11:42 pm

1 stop5h 05m

Chicago O'Hare Intl

sáb. 11/1

12:03 pm-6:05 pm

1 stop6h 02m

$349

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

mar. 10/21

3:39 pm-9:19 pm

1 stop5h 40m

Chicago O'Hare Intl

mar. 10/28

8:57 am-2:43 pm

1 stop5h 46m

$369

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

mié. 11/26

12:22 pm-8:20 am

1 stop19h 58m

Chicago O'Hare Intl

dom. 11/30

7:52 pm-11:01 am

1 stop15h 09m

$375

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

jue. 11/13

5:45 am-1:00 pm

2 stops7h 15m

Chicago O'Hare Intl

lun. 11/17

2:15 pm-9:55 pm

2 stops7h 40m

$383

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

dom. 11/16

12:10 pm-10:45 am

1 stop22h 35m

Chicago O'Hare Intl

mié. 11/19

6:48 am-11:13 am

2 stops28h 25m

$401

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

vie. 10/17

2:50 pm-10:36 pm

1 stop7h 46m

Chicago O'Hare Intl

vie. 10/24

5:17 pm-11:04 pm

1 stop5h 47m

$409

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

mié. 12/31

2:48 pm-10:19 pm

1 stop7h 31m

Chicago O'Hare Intl

lun. 1/5

7:29 am-2:18 pm

1 stop6h 49m

$417

HarlingenChicago

HRL - ORD

HRLORD

Harlingen Valley Intl

mar. 10/21

3:39 pm-9:19 pm

1 stop5h 40m

Chicago O'Hare Intl

sáb. 10/25

6:08 am-2:43 pm

1 stop8h 35m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 19 results
1
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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, December is the cheapest month in which you can book a flight from Harlingen, Texas to Illinois (average of $128). Flying from Harlingen, Texas to Illinois in February is currently the most expensive (average of $328). 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 octubre 14, 2025.

When flying from Harlingen, Texas to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 32% versus a flight in the afternoon.

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 octubre 14, 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
4,238 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Crew

8.6

Comfort

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
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Crew

8.6

Comfort

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
8,976 reviews
Southwest
8.0
Very good
4,238 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Crew

8.6

Comfort

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
11,042 reviews
Southwest
8.0
Very good
4,238 reviews

Entertainment

7.5

Boarding

8.1

Overall

8.0

Food

7.0

Crew

8.6

Comfort

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 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 05m. Fly via Sun Country Air, United Airlines, or American Airlines to get the fastest option. The distance between Harlingen, Texas and Illinois is about 1220 mi. This flight may include one or multiple stops.

  • 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 $126 on American Airlines. Other airlines that offer cheap prices include United Airlines from $253 and Southwest from $310 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, December is the cheapest month in which you can book a flight from Harlingen, Texas to Illinois (average of $128). Flying from Harlingen, Texas to Illinois in February is currently the most expensive (average of $328). 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.

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Alternative routes for Harlingen to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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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 octubre 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$217Average$387FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$252Average$319FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$288Average$393FlexibilityNo cancel feeOn-time69%

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