$149+ Cheap flights from Harlingen (HRL) to Illinois
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
HRL — ORD
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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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 October 30, 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 October 30, 2026.
This American Airlines deal was found by Cheapflights users on 10/25. 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 12/36:41 pm -
1 stop5h 18m
Sat 12/53:04 pm -
1 stop8h 22m
Deal found 10/25![American Airlines logo]()
$345
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Mon 12/72:00 pm -
1 stop7h 37m
Thu 12/177:00 am -
1 stop6h 30m
Deal found 10/29![United Airlines logo]()
$353
This American Airlines deal was found by Cheapflights users on 10/25. 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 12/36:41 pm -
1 stop5h 18m
Sun 12/66:59 am -
1 stop6h 55m
Deal found 10/25![American Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 10/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:35 pm -
1 stop4h 25m
Wed 12/23:55 pm -
1 stop4h 50m
Deal found 10/28![Southwest logo]()
$363
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/141:59 pm -
1 stop7h 41m
Tue 11/1710:34 am -
1 stop5h 27m
Deal found 10/26![United Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:40 am -
1 stop5h 30m
Tue 11/176:40 am -
1 stop5h 30m
Deal found 10/26![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/235:25 pm -
1 stop7h 20m
Thu 11/266:55 am -
1 stop6h 26m
Deal found 10/25![United Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/125:25 pm -
1 stop7h 20m
Tue 11/176:55 am -
1 stop6h 26m
Deal found 10/25![United Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Tue 11/106:41 pm -
1 stop5h 18m
Sat 11/146:59 am -
1 stop6h 57m
Deal found 10/26![American Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:30 pm -
1 stop6h 40m
Sat 11/142:55 pm -
1 stop6h 20m
Deal found 10/26![Southwest logo]()
$409
This Southwest deal was found by Cheapflights users on 10/25. 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.
Mon 11/234:45 pm -
1 stop8h 25m
Thu 11/267:55 am -
2 stops8h 25m
Deal found 10/25![Southwest logo]()
$420
This Southwest deal was found by Cheapflights users on 10/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:50 pm -
2 stops8h 45m
Sun 11/155:15 am -
1 stop4h 55m
Deal found 10/27![Southwest logo]()
$424
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 October 30, 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 October 30, 2026.
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/114:39 pm -
1 stop6h 17m
Sun 12/137:30 am -
1 stop8h 20m
Deal found 10/25![United Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 10/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:35 pm -
1 stop4h 25m
Wed 12/23:55 pm -
1 stop4h 50m
Deal found 10/28![Southwest logo]()
$363
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Tue 11/106:41 pm -
1 stop5h 18m
Sat 11/146:59 am -
1 stop6h 57m
Deal found 10/26![American Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 10/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/247:00 am -
2 stops8h 10m
Mon 1/253:45 pm -
1 stop5h 20m
Deal found 10/27![Southwest logo]()
$364
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/125:25 pm -
1 stop7h 20m
Tue 11/176:55 am -
1 stop6h 26m
Deal found 10/25![United Airlines logo]()
$394
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:40 am -
1 stop5h 30m
Tue 11/179:40 am -
2 stops6h 10m
Deal found 10/26![Southwest logo]()
$387
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:30 pm -
1 stop6h 40m
Sat 11/142:55 pm -
1 stop6h 20m
Deal found 10/26![Southwest logo]()
$409
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/111:59 pm -
1 stop7h 41m
Sun 11/155:30 am -
1 stop5h 20m
Deal found 10/27![United Airlines logo]()
$469
This Southwest deal was found by Cheapflights users on 10/25. 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.
Mon 11/234:45 pm -
1 stop8h 25m
Thu 11/267:55 am -
2 stops8h 25m
Deal found 10/25![Southwest logo]()
$420
This Southwest deal was found by Cheapflights users on 10/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:50 pm -
2 stops8h 45m
Sun 11/155:15 am -
1 stop4h 55m
Deal found 10/27![Southwest logo]()
$424
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/54:39 pm -
1 stop6h 17m
Mon 12/79:45 pm -
2 stops18h 05m
Deal found 10/25![United Airlines logo]()
$516
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/105:25 pm -
1 stop6h 00m
Wed 11/115:30 pm -
1 stop5h 18m
Deal found 10/28![United Airlines logo]()
$519
This American Airlines deal was found by Cheapflights users on 10/30. 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.
Thu 12/1710:38 am -
1 stop5h 11m
Tue 12/224:16 pm -
1 stop6h 38m
Deal found 10/30![American Airlines logo]()
$705
This Southwest deal was found by Cheapflights users on 10/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/154:30 pm -
2 stops6h 10m
Sat 12/191:00 pm -
2 stops10h 45m
Deal found 10/27![Southwest logo]()
$483
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Mon 12/74:39 pm -
2 stops12h 47m
Thu 12/177:40 am -
1 stop5h 50m
Deal found 10/29![United Airlines logo]()
$567
This American Airlines deal was found by Cheapflights users on 10/29. 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 11/232:50 pm -
2 stops9h 17m
Sat 11/285:13 pm -
1 stop6h 00m
Deal found 10/29![American Airlines logo]()
$760
This United Airlines deal was found by Cheapflights users on 10/28. 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 12/225:22 pm -
1 stop6h 02m
Mon 12/289:43 pm -
1 stop21h 56m
Deal found 10/28![United Airlines logo]()
$603
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Tue 11/242:50 pm -
2 stops9h 17m
Sat 11/285:13 pm -
1 stop6h 00m
Deal found 10/29![American Airlines logo]()
$824
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 11/125:25 pm -
2 stops16h 43m
Mon 11/165:30 pm -
2 stops22h 31m
Deal found 10/28![United Airlines logo]()
$878
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/241:59 pm -
2 stops9h 00m
Sat 11/288:13 am -
2 stops14h 35m
Deal found 10/29![United Airlines logo]()
$958
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Mon 11/237:10 am -
2 stops15h 49m
Sun 11/298:13 am -
2 stops14h 35m
Deal found 10/29![United Airlines logo]()
$1,108
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/172:05 pm -
2 stops8h 35m
Tue 12/2210:35 am -
3 stops11h 24m
Deal found 10/30![United Airlines logo]()
$1,211
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Mon 11/231:59 pm -
2 stops9h 00m
Sat 11/288:13 am -
2 stops11h 34m
Deal found 10/29![United Airlines logo]()
$1,305
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/241:59 pm -
2 stops9h 00m
Sun 11/296:30 am -
2 stops9h 31m
Deal found 10/29![United Airlines logo]()
$1,399
Last-minute flights from Harlingen to IllinoisDiscover last-minute flight deals from Harlingen to Illinois. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Harlingen to Illinois. Data last updated October 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 11/45:05 am -
1 stop6h 13m
Fri 11/610:34 am -
1 stop5h 27m
Deal found 10/28![United Airlines logo]()
$446
This Southwest deal was found by Cheapflights users on 10/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:30 pm -
1 stop6h 40m
Fri 11/65:20 pm -
1 stop6h 15m
Deal found 10/28![Southwest logo]()
$474
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/65:25 pm -
1 stop7h 20m
Fri 11/135:30 pm -
1 stop5h 18m
Deal found 10/30![United Airlines logo]()
$456
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Fri 11/61:59 pm -
1 stop7h 41m
Sun 11/85:30 am -
1 stop5h 20m
Deal found 10/27![United Airlines logo]()
$483
This Delta deal was found by Cheapflights users on 10/27. 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.
Fri 11/62:13 pm -
2 stops9h 44m
Sun 11/86:20 am -
1 stop7h 03m
Deal found 10/27![Delta logo]()
$488
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 11/75:05 am -
1 stop5h 06m
Mon 11/910:59 am -
2 stops8h 48m
Deal found 10/28![United Airlines logo]()
$724
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sun 11/85:05 am -
1 stop6h 12m
Tue 11/108:40 am -
2 stops7h 21m
Deal found 10/28![United Airlines logo]()
$731
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:30 pm -
1 stop6h 40m
Sat 11/142:55 pm -
1 stop6h 20m
Deal found 10/26![Southwest logo]()
$409
This Southwest deal was found by Cheapflights users on 10/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:50 pm -
2 stops8h 45m
Sun 11/155:15 am -
1 stop4h 55m
Deal found 10/27![Southwest logo]()
$424
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:40 am -
1 stop5h 30m
Tue 11/176:40 am -
1 stop5h 30m
Deal found 10/26![Southwest logo]()
$382
This Southwest deal was found by Cheapflights users on 10/25. 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.
Mon 11/234:45 pm -
1 stop8h 25m
Thu 11/267:55 am -
2 stops8h 25m
Deal found 10/25![Southwest logo]()
$420
This Southwest deal was found by Cheapflights users on 10/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:35 pm -
1 stop4h 25m
Wed 12/23:55 pm -
1 stop4h 50m
Deal found 10/28![Southwest logo]()
$363
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 October 30, 2026.
Search for one-way flight options from Harlingen to Illinois. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:35 pm -
1 stop4h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Southwest logo]()
$149
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2512:34 pm -
1 stop6h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Sun Country Air logo]()
$163
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Mon 11/232:50 pm -
1 stop8h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![American Airlines logo]()
$180
This Southwest deal was found by Cheapflights users on 10/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/254:30 pm -
1 stop6h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Southwest logo]()
$180
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/234:45 pm -
1 stop8h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Southwest logo]()
$199
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Wed 11/256:46 pm -
1 stop5h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![American Airlines logo]()
$205
This Southwest deal was found by Cheapflights users on 10/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/175:50 pm -
1 stop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$214
This Southwest deal was found by Cheapflights users on 10/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:35 pm -
1 stop4h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Southwest logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2512:26 pm -
2 stops36h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$276
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Fri 11/277:10 am -
2 stops13h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Fri 12/255:05 am -
2 stops10h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![United Airlines logo]()
$342
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/276:46 pm -
1 stop5h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![American Airlines logo]()
$345
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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $345 (American Airlines) |
One-way from | $149 (Southwest) |
Popular in | January |
Cheapest in | November |
Average price | $468 |
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 October 30, 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
Quickest round-trip
HarlingenChicago
HRL Harlingen Valley Intl - MDW Chicago Midway
HRLMDW
Harlingen Valley Intl
Tue 11/24
8:35 pm-1:00 am
1 stop4h 25m
Chicago Midway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$149
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Fri 12/25
12:34 pm-6:45 pm
1 stop6h 11m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$163
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Mon 11/23
2:50 pm-11:08 pm
1 stop8h 18m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$180
HarlingenChicago
HRL Harlingen Valley Intl - MDW Chicago Midway
HRLMDW
Harlingen Valley Intl
Fri 12/25
4:30 pm-11:10 pm
1 stop6h 40m
Chicago Midway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$180
HarlingenChicago
HRL Harlingen Valley Intl - MDW Chicago Midway
HRLMDW
Harlingen Valley Intl
Thu 12/17
5:50 pm-12:10 am
1 stop6h 20m
Chicago Midway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$214
HarlingenChicago
HRL Harlingen Valley Intl - MDW Chicago Midway
HRLMDW
Harlingen Valley Intl
Wed 11/25
5:40 am-12:15 pm
2 stops6h 35m
Chicago Midway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$255
HarlingenChicago
HRL Harlingen Valley Intl - MDW Chicago Midway
HRLMDW
Harlingen Valley Intl
Mon 11/23
1:00 pm-8:20 pm
2 stops7h 20m
Chicago Midway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$255
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Fri 11/27
7:10 am-8:19 pm
2 stops13h 09m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$339
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Fri 12/25
5:05 am-3:57 pm
2 stops10h 52m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$342
HarlingenChicago
HRL Harlingen Valley Intl - ORD Chicago O'Hare Intl
HRLORD
Harlingen Valley Intl
Fri 12/11
4:39 pm-10:56 pm
1 stop6h 17m
Chicago O'Hare Intl
Sun 12/13
7:30 am-3:50 pm
1 stop8h 20m
$359
Showing 1-10 of 43 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
HRL-MDW
HRL-MLI
HRL-PIA
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
HRL-MDW
HRL-MLI
HRL-PIA
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.
How much does it cost to fly round-trip from Harlingen to Illinois?
Airfare is typical for this route at the moment.
Harlingen to Illinois flights typically cost between $318 and $511 in December.The cheapest round-trip price found within the last 5 days was $345 on American Airlines (Dec 3-Dec 5).
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 October 30, 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
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Crew
8.6
Overall
7.9
Boarding
8.1
Comfort
8.0
Entertainment
7.4
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
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Harlingen and Illinois flights
Browse other Harlingen and Illinois flight options. Last updated on October 30, 2026.
Popular flight searches
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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 October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$250 | Average$401 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$288 | Average$388 | FlexibilityNo cancel fee | On-time71% |