$129+ Cheap flights from Harlingen (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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — ORD
Aug 3 — Aug 101
Round-trip
1 adult, Economy
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Find cheap flights from Harlingen to Illinois with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Harlingen to Illinois
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Cheapest flights from Harlingen to IllinoisExplore 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 July 4, 2026.
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 July 4, 2026.
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.
Sat 10/176:42 pm
HRL
- ORD
1 stop5h 17m
American Airlines
Sat 10/248:15 am
ORD
- HRL
1 stop6h 02m
American Airlines
Deal found 7/2![American Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Wed 8/56:43 pm
HRL
- ORD
1 stop5h 35m
American Airlines
Wed 8/125:00 am
ORD
- HRL
1 stop5h 04m
American Airlines
Deal found 7/1![American Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Thu 8/135:18 pm
HRL
- ORD
1 stop7h 41m
United Airlines
Tue 8/1810:40 am
ORD
- HRL
1 stop5h 19m
United Airlines
Deal found 6/30![United Airlines logo]()
$273
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Fri 8/143:17 pm
HRL
- ORD
1 stop8h 13m
American Airlines
Tue 8/185:00 am
ORD
- HRL
1 stop5h 04m
American Airlines
Deal found 7/1![American Airlines logo]()
$293
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Thu 10/14:53 pm
HRL
- ORD
1 stop7h 21m
American Airlines
Sun 10/45:00 am
ORD
- HRL
1 stop4h 58m
American Airlines
Deal found 7/1![American Airlines logo]()
$309
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Fri 8/76:43 pm
HRL
- ORD
1 stop5h 35m
American Airlines
Sun 8/95:00 am
ORD
- HRL
1 stop5h 04m
American Airlines
Deal found 7/1![American Airlines logo]()
$329
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.
Tue 11/171:59 pm
HRL
- ORD
1 stop5h 54m
United Airlines
Wed 11/185:45 pm
ORD
- HRL
1 stop5h 06m
United Airlines
Deal found 7/2![United Airlines logo]()
$347
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Wed 8/56:43 pm
HRL
- ORD
1 stop5h 35m
American Airlines
Tue 8/115:00 am
ORD
- HRL
1 stop5h 04m
American Airlines
Deal found 7/1![American Airlines logo]()
$359
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.
Fri 9/115:18 pm
HRL
- ORD
1 stop6h 08m
United Airlines
Mon 9/146:30 am
ORD
- HRL
1 stop6h 54m
United Airlines
Deal found 7/2![United Airlines logo]()
$363
This American Airlines deal was found by Cheapflights users on 6/30. 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 8/44:58 pm
HRL
- ORD
1 stop6h 50m
American Airlines
Fri 8/75:00 am
ORD
- HRL
1 stop5h 04m
American Airlines
Deal found 6/30![American Airlines logo]()
$369
Best flights from Harlingen to IllinoisDiscover carefully curated flight deals from Harlingen to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 4, 2026.
Discover carefully curated flight deals from Harlingen to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 4, 2026.
This United Airlines deal was found by Cheapflights users on 6/29. 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.
Wed 8/195:18 pm
HRL
- ORD
1 stop7h 41m
United Airlines
Tue 8/258:50 am
ORD
- HRL
1 stop7h 09m
United Airlines
Deal found 6/29![United Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 7/1. 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 11/171:59 pm
HRL
- ORD
1 stop5h 54m
United Airlines
Wed 11/185:45 pm
ORD
- HRL
1 stop5h 06m
United Airlines
Deal found 7/1![United Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 6/29. 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.
Wed 8/195:18 pm
HRL
- ORD
1 stop6h 08m
United Airlines
Thu 8/277:30 am
ORD
- HRL
1 stop5h 54m
United Airlines
Deal found 6/29![United Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 6/29. 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 8/181:59 pm
HRL
- ORD
1 stop7h 33m
United Airlines
Thu 8/278:50 am
ORD
- HRL
1 stop7h 09m
United Airlines
Deal found 6/29![United Airlines logo]()
$351
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.
Wed 12/235:16 pm
HRL
- ORD
1 stop6h 59m
United Airlines
Wed 12/306:00 am
ORD
- HRL
1 stop4h 59m
United Airlines
Deal found 7/2![United Airlines logo]()
$427
This United Airlines deal was found by Cheapflights users on 7/1. 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 8/42:05 pm
HRL
- ORD
1 stop7h 35m
United Airlines
Tue 8/118:29 pm
ORD
- HRL
2 stops19h 30m
United Airlines
Deal found 7/1![United Airlines logo]()
$442
Last-minute flights from Harlingen to IllinoisDiscover last-minute flight deals from Harlingen to Illinois. Data last updated July 4, 2026 and is based on user searches.
Discover last-minute flight deals from Harlingen to Illinois. Data last updated July 4, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/30. 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 8/44:58 pm
HRL
- ORD
1 stop6h 50m
American Airlines
Fri 8/75:00 am
ORD
- HRL
1 stop5h 04m
American Airlines
Deal found 6/30![American Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 7/1. 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 8/42:05 pm
HRL
- ORD
1 stop7h 35m
United Airlines
Thu 8/135:30 am
ORD
- HRL
1 stop7h 54m
United Airlines
Deal found 7/1![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 7/1. 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 8/42:05 pm
HRL
- ORD
1 stop7h 35m
United Airlines
Tue 8/116:30 am
ORD
- HRL
1 stop6h 54m
United Airlines
Deal found 7/1![United Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Wed 8/56:43 pm
HRL
- ORD
1 stop5h 35m
American Airlines
Wed 8/125:00 am
ORD
- HRL
1 stop5h 04m
American Airlines
Deal found 7/1![American Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Wed 8/56:43 pm
HRL
- ORD
1 stop5h 35m
American Airlines
Tue 8/115:00 am
ORD
- HRL
1 stop5h 04m
American Airlines
Deal found 7/1![American Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Wed 8/56:43 pm
HRL
- ORD
1 stop5h 35m
American Airlines
Thu 8/135:00 am
ORD
- HRL
1 stop5h 04m
American Airlines
Deal found 7/1![American Airlines logo]()
$375
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Fri 8/76:43 pm
HRL
- ORD
1 stop5h 35m
American Airlines
Sun 8/95:00 am
ORD
- HRL
1 stop5h 04m
American Airlines
Deal found 7/1![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 6/29. 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.
Wed 8/126:43 pm
HRL
- ORD
1 stop5h 35m
American Airlines
Mon 8/173:54 pm
ORD
- HRL
1 stop7h 00m
American Airlines
Deal found 6/29![American Airlines logo]()
$386
This United Airlines deal was found by Cheapflights users on 6/30. 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.
Thu 8/135:18 pm
HRL
- ORD
1 stop7h 41m
United Airlines
Tue 8/1810:40 am
ORD
- HRL
1 stop5h 19m
United Airlines
Deal found 6/30![United Airlines logo]()
$273
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Fri 8/143:17 pm
HRL
- ORD
1 stop8h 13m
American Airlines
Tue 8/185:00 am
ORD
- HRL
1 stop5h 04m
American Airlines
Deal found 7/1![American Airlines logo]()
$293
One-way flights from Harlingen to IllinoisSearch for one-way flight options from Harlingen to Illinois. Find affordable one-way fares based on user searches. Data last updated July 4, 2026.
Search for one-way flight options from Harlingen to Illinois. Find affordable one-way fares based on user searches. Data last updated July 4, 2026.
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Sat 8/295:18 pm
HRL
- ORD
1 stop6h 08m
United Airlines
Deal found 7/1![United Airlines logo]()
$129
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:13 pm
HRL
- ORD
2 stops9h 38m
Delta
Deal found 7/2![Delta logo]()
$134
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:43 pm
HRL
- ORD
1 stop5h 35m
American Airlines
Deal found 7/3![American Airlines logo]()
$141
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:18 pm
HRL
- ORD
1 stop7h 41m
United Airlines
Deal found 7/3![United Airlines logo]()
$145
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/292:00 pm
HRL
- ORD
2 stops9h 50m
Delta
Deal found 7/3![Delta logo]()
$146
This Delta deal was found by Cheapflights users on 6/30. 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.
Fri 12/252:00 pm
HRL
- ORD
1 stop7h 34m
Delta
Deal found 6/30![Delta logo]()
$165
This Delta deal was found by Cheapflights users on 6/29. 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.
Thu 12/242:00 pm
HRL
- ORD
2 stops9h 50m
Delta
Deal found 6/29![Delta logo]()
$170
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Wed 8/265:18 pm
HRL
- ORD
1 stop6h 08m
United Airlines
Deal found 7/1![United Airlines logo]()
$174
This American Airlines deal was found by Cheapflights users on 6/29. 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.
Mon 8/246:43 pm
HRL
- ORD
1 stop5h 35m
American Airlines
Deal found 6/29![American Airlines logo]()
$178
This Sun Country Air deal was found by Cheapflights users on 6/30. 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.
Thu 10/111:47 am
HRL
- ORD
1 stop6h 56m
Sun Country Air
Deal found 6/30![Sun Country Air logo]()
$183
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.
Wed 12/305:16 pm
HRL
- ORD
1 stop6h 59m
United Airlines
Deal found 7/2![United Airlines logo]()
$184
Find flight deals from Harlingen to Illinois
Keep the following information in mind while searching for Harlingen to Illinois flight deals. Data was last updated July 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $257 (United Airlines) |
One-way from | $129 (United Airlines) |
Popular in | January |
Cheapest in | November |
Average price | $333 |
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 July 4, 2026.
Use the filters below to find and compare flights from Harlingen to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HarlingenChicago
HRL - ORD
HRLORD
Harlingen Valley Intl
Wed 8/19
5:18 pm-12:59 am
1 stop7h 41m
Chicago O'Hare Intl
Tue 8/25
8:50 am-3:59 pm
1 stop7h 09m
$347
Quickest round-trip
HarlingenChicago
HRL - ORD
HRLORD
Harlingen Valley Intl
Tue 11/17
1:59 pm-7:53 pm
1 stop5h 54m
Chicago O'Hare Intl
Wed 11/18
5:45 pm-10:51 pm
1 stop5h 06m
$347
HarlingenChicago
HRL - ORD
HRLORD
Harlingen Valley Intl
Wed 8/19
5:18 pm-11:26 pm
1 stop6h 08m
Chicago O'Hare Intl
Thu 8/27
7:30 am-1:24 pm
1 stop5h 54m
$351
HarlingenChicago
HRL - ORD
HRLORD
Harlingen Valley Intl
Tue 8/18
1:59 pm-9:32 pm
1 stop7h 33m
Chicago O'Hare Intl
Thu 8/27
8:50 am-3:59 pm
1 stop7h 09m
$351
HarlingenChicago
HRL - ORD
HRLORD
Harlingen Valley Intl
Wed 12/23
5:16 pm-12:15 am
1 stop6h 59m
Chicago O'Hare Intl
Wed 12/30
6:00 am-10:59 am
1 stop4h 59m
$427
HarlingenChicago
HRL - ORD
HRLORD
Harlingen Valley Intl
Tue 8/4
2:05 pm-9:40 pm
1 stop7h 35m
Chicago O'Hare Intl
Tue 8/11
8:29 pm-3:59 pm
2 stops19h 30m
$442
Cheapest one-way
HarlingenChicago
HRL - ORD
HRLORD
Harlingen Valley Intl
Tue 10/13
2:13 pm-9:32 pm
1 stop7h 19m
$129
HarlingenChicago
HRL - ORD
HRLORD
Harlingen Valley Intl
Tue 12/29
2:00 pm-11:50 pm
2 stops9h 50m
$146
Quickest one-way
HarlingenChicago
HRL - ORD
HRLORD
Harlingen Valley Intl
Sat 8/29
5:18 pm-11:26 pm
1 stop6h 08m
$174
HarlingenChicago
HRL - ORD
HRLORD
Harlingen Valley Intl
Mon 8/31
5:18 pm-9:21 am
2 stops16h 03m
$239
Showing 1-10 of 15 resultsSorted by cheapest first
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.
HRL-ORD
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
HRL-USIL
HRL-ORD
What is the cheapest month to book a flight from Harlingen to Illinois?
Currently, October is the cheapest month in which you can book a flight from Harlingen to Illinois (average of $130). Flying from Harlingen to Illinois in March is currently the most expensive (average of $377). 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.
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 July 4, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAmerican Airlines from Harlingen to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
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.
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Alternative routes for Harlingen to Illinois
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Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Harlingen to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Harlingen and Illinois flights
Browse other Harlingen and Illinois flight options. Last updated on July 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Harlingen to Illinois flights
Consider these flights traveling from Harlingen to Illinois.
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 July 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$250 | Average$408 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$252 | Average$427 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$318 | Average$438 | FlexibilityNo cancel fee | On-time71% |