$153+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — ORD
Sep 30 — Oct 71
Round-trip
1 adult, Economy
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Find cheap flights from Harlingen to Illinois with Cheapflights
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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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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 August 31, 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 August 31, 2026.
This American Airlines deal was found by Cheapflights users on 8/27. 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 9/244:53 pm -
1 stop7h 21m
Tue 9/295:00 am -
1 stop4h 58m
Deal found 8/27![American Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 8/30. 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.
Fri 9/115:05 am -
1 stop5h 10m
Tue 9/2212:47 pm -
1 stop6h 52m
Deal found 8/30![United Airlines logo]()
$336
This American Airlines deal was found by Cheapflights users on 8/28. 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 9/253:35 pm -
1 stop7h 55m
Sun 9/275:00 am -
1 stop4h 58m
Deal found 8/28![American Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 8/27. 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 9/910:45 am -
1 stop7h 40m
Wed 9/168:05 am -
1 stop7h 00m
Deal found 8/27![American Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 8/27. 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 9/165:28 pm -
1 stop6h 02m
Sun 9/205:00 am -
1 stop4h 58m
Deal found 8/27![American Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/110:34 am -
1 stop7h 55m
Sat 9/510:45 am -
1 stop7h 28m
Deal found 8/31![American Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/183:35 pm -
1 stop5h 34m
Mon 9/215:00 am -
1 stop4h 58m
Deal found 8/31![American Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 8/31. 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 -
1 stop7h 37m
Wed 11/185:30 pm -
1 stop5h 18m
Deal found 8/31![United Airlines logo]()
$401
This American Airlines deal was found by Cheapflights users on 8/27. 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 8/286:43 pm -
1 stop5h 35m
Sat 8/295:00 am -
1 stop5h 04m
Deal found 8/27![American Airlines logo]()
$406
This Sun Country Air deal was found by Cheapflights users on 8/29. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/165:00 pm -
1 stop26h 10m
Fri 12/187:40 pm -
1 stop13h 39m
Deal found 8/29![Sun Country Air logo]()
$415
This American Airlines deal was found by Cheapflights users on 8/28. 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 10/126:42 pm -
1 stop5h 17m
Thu 10/152:50 pm -
1 stop8h 00m
Deal found 8/28![American Airlines logo]()
$429
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 August 31, 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 August 31, 2026.
This American Airlines deal was found by Cheapflights users on 8/26. 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 10/35:51 am -
1 stop5h 18m
Sat 10/33:50 pm -
1 stop6h 58m
Deal found 8/26![American Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/155:05 am -
1 stop5h 10m
Sat 9/195:30 am -
1 stop7h 54m
Deal found 8/31![United Airlines logo]()
$369
This Sun Country Air deal was found by Cheapflights users on 8/29. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/165:00 pm -
1 stop26h 10m
Fri 12/187:40 pm -
1 stop13h 39m
Deal found 8/29![Sun Country Air logo]()
$415
This American Airlines deal was found by Cheapflights users on 8/31. 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 10/126:42 pm -
1 stop5h 17m
Thu 10/155:00 am -
1 stop5h 08m
Deal found 8/31![American Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 8/26. 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 11/105:25 pm -
1 stop7h 21m
Wed 11/112:22 pm -
1 stop5h 25m
Deal found 8/26![United Airlines logo]()
$401
This United Airlines deal was found by Cheapflights users on 8/28. 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 -
1 stop7h 37m
Wed 11/185:30 pm -
1 stop5h 18m
Deal found 8/28![United Airlines logo]()
$401
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/37:15 am -
1 stop7h 35m
Sat 10/35:30 pm -
2 stops19h 53m
Deal found 8/26![United Airlines logo]()
$447
This United Airlines deal was found by Cheapflights users on 8/30. 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.
Sat 10/175:05 am -
1 stop5h 11m
Sat 10/179:38 pm -
1 stop24h 14m
Deal found 8/30![United Airlines logo]()
$537
This United Airlines deal was found by Cheapflights users on 8/27. 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.
Mon 10/125:18 pm -
1 stop7h 05m
Thu 10/152:12 pm -
2 stops23h 11m
Deal found 8/27![United Airlines logo]()
$537
Last-minute flights from Harlingen to IllinoisDiscover last-minute flight deals from Harlingen to Illinois. Data last updated August 31, 2026 and is based on user searches.
Discover last-minute flight deals from Harlingen to Illinois. Data last updated August 31, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/31. 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 9/51:59 pm -
1 stop7h 33m
Mon 9/76:30 am -
1 stop6h 54m
Deal found 8/31![United Airlines logo]()
$584
This American Airlines deal was found by Cheapflights users on 8/28. 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 9/83:17 pm -
1 stop6h 56m
Wed 9/93:00 pm -
1 stop7h 48m
Deal found 8/28![American Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 8/28. 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 9/81:59 pm -
1 stop7h 33m
Wed 9/98:43 am -
2 stops10h 56m
Deal found 8/28![United Airlines logo]()
$750
This American Airlines deal was found by Cheapflights users on 8/27. 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 9/910:45 am -
1 stop7h 40m
Wed 9/168:05 am -
1 stop7h 00m
Deal found 8/27![American Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/95:05 am -
2 stops11h 56m
Wed 9/166:30 am -
1 stop6h 54m
Deal found 8/27![United Airlines logo]()
$614
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 August 31, 2026.
Search for one-way flight options from Harlingen to Illinois. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.
This Sun Country Air deal was found by Cheapflights users on 8/27. 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 10/2911:41 am -
1 stop6h 37m
Deal found 8/27![Sun Country Air logo]()
$153
This Delta deal was found by Cheapflights users on 8/28. 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.
Wed 10/282:13 pm -
1 stop7h 14m
Deal found 8/28![Delta logo]()
$156
This Delta deal was found by Cheapflights users on 8/28. 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.
Mon 10/262:13 pm -
1 stop5h 25m
Deal found 8/28![Delta logo]()
$170
This Delta deal was found by Cheapflights users on 8/28. 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 10/302:13 pm -
2 stops9h 44m
Deal found 8/28![Delta logo]()
$175
This United Airlines deal was found by Cheapflights users on 8/30. 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.
Sat 9/195:05 am -
1 stop6h 15m
Deal found 8/30![United Airlines logo]()
$185
This American Airlines deal was found by Cheapflights users on 8/28. 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.
Sun 9/275:51 am -
1 stop5h 18m
Deal found 8/28![American Airlines logo]()
$200
This American Airlines deal was found by Cheapflights users on 8/27. 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 9/293:35 pm -
1 stop7h 55m
Deal found 8/27![American Airlines logo]()
$201
This American Airlines deal was found by Cheapflights users on 8/26. 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 9/115:28 pm -
1 stop6h 02m
Deal found 8/26![American Airlines logo]()
$205
This Delta deal was found by Cheapflights users on 8/27. 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 10/272:13 pm -
2 stops9h 44m
Deal found 8/27![Delta logo]()
$210
This Sun Country Air deal was found by Cheapflights users on 8/28. 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.
Sat 11/2811:28 am -
1 stop7h 47m
Deal found 8/28![Sun Country Air logo]()
$213
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 August 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $325 (American Airlines) |
One-way from | $153 (Sun Country Air) |
Popular in | January |
Cheapest in | November |
Average price | $337 |
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 7,457,451 searches. Data last updated August 31, 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 Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Sat 10/3
5:51 am-11:09 am
1 stop5h 18m
Chicago O'Hare Intl
Sat 10/3
3:50 pm-10:48 pm
1 stop6h 58m
$340
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Tue 9/15
5:05 am-10:15 am
1 stop5h 10m
Chicago O'Hare Intl
Sat 9/19
5:30 am-1:24 pm
1 stop7h 54m
$369
Quickest round-trip
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Mon 10/12
6:42 pm-11:59 pm
1 stop5h 17m
Chicago O'Hare Intl
Thu 10/15
5:00 am-10:08 am
1 stop5h 08m
$369
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Tue 11/10
5:25 pm-12:46 am
1 stop7h 21m
Chicago O'Hare Intl
Wed 11/11
2:22 pm-7:47 pm
1 stop5h 25m
$401
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Tue 11/17
1:59 pm-9:36 pm
1 stop7h 37m
Chicago O'Hare Intl
Wed 11/18
5:30 pm-10:48 pm
1 stop5h 18m
$401
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Wed 12/16
5:00 pm-7:10 pm
1 stop26h 10m
Chicago O'Hare Intl
Fri 12/18
7:40 pm-9:19 am
1 stop13h 39m
$415
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Sat 10/3
7:15 am-2:50 pm
1 stop7h 35m
Chicago O'Hare Intl
Sat 10/3
5:30 pm-1:23 pm
2 stops19h 53m
$447
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Sat 10/17
5:05 am-10:16 am
1 stop5h 11m
Chicago O'Hare Intl
Sat 10/17
9:38 pm-9:52 pm
1 stop24h 14m
$537
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Mon 10/12
5:18 pm-12:23 am
1 stop7h 05m
Chicago O'Hare Intl
Thu 10/15
2:12 pm-1:23 pm
2 stops23h 11m
$537
Cheapest one-way
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Wed 10/28
2:13 pm-9:27 pm
1 stop7h 14m
$156
Showing 1-10 of 19 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, May is the cheapest month in which you can book a flight from Harlingen to Illinois (average of $298). Flying from Harlingen to Illinois in March is currently the most expensive (average of $540). 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 August 31, 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.
Food
7.0
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
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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Harlingen and Illinois flights
Browse other Harlingen and Illinois flight options. Last updated on August 31, 2026.
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Harlingen to Illinois flights
Consider these flights traveling from Harlingen to Illinois.
Top 2 airlines flying from Harlingen to Illinois
Discover the top 2 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 7,457,451 searches. Data last updated August 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$250 | Average$417 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$288 | Average$384 | FlexibilityNo cancel fee | On-time71% |