$199+ Cheap flights from Colorado to Harlingen (HRL)
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 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HRL
Nov 22 — Nov 291
Round-trip
1 adult, Economy
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Find cheap flights from Colorado to Harlingen 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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Cheapest flights from Colorado to HarlingenExplore the most affordable flight options available from Colorado to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2026.
Explore the most affordable flight options available from Colorado to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2026.
This Southwest deal was found by Cheapflights users on 10/19. 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 11/196:00 am -
1 stop3h 55m
Thu 11/265:55 am -
1 stop6h 30m
Deal found 10/19![Southwest logo]()
$207
This Southwest deal was found by Cheapflights users on 10/20. 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 12/43:10 pm -
1 stop4h 35m
Fri 12/114:45 pm -
1 stop5h 15m
Deal found 10/20![Southwest logo]()
$211
This American Airlines deal was found by Cheapflights users on 10/21. 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 11/512:54 pm -
1 stop4h 17m
Mon 11/96:41 pm -
1 stop5h 20m
Deal found 10/21![American Airlines logo]()
$271
This Southwest deal was found by Cheapflights users on 10/21. 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 11/54:40 pm -
2 stops5h 55m
Mon 11/95:50 am -
1 stop6h 45m
Deal found 10/21![Southwest logo]()
$276
This Southwest deal was found by Cheapflights users on 10/21. 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 11/215:15 pm -
1 stop4h 10m
Mon 11/234:45 pm -
1 stop5h 15m
Deal found 10/21![Southwest logo]()
$302
This American Airlines deal was found by Cheapflights users on 10/21. 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 11/510:41 am -
1 stop6h 30m
Mon 11/96:41 pm -
1 stop6h 07m
Deal found 10/21![American Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 10/19. 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 12/195:05 pm -
1 stop5h 40m
Tue 12/228:35 pm -
1 stop4h 40m
Deal found 10/19![Southwest logo]()
$322
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/410:01 am -
1 stop5h 00m
Wed 11/115:25 pm -
1 stop5h 50m
Deal found 10/23![United Airlines logo]()
$326
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/101:20 pm -
2 stops8h 28m
Wed 11/115:25 pm -
1 stop5h 20m
Deal found 10/19![United Airlines logo]()
$326
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/318:40 am -
2 stops10h 07m
Wed 11/45:05 am -
1 stop7h 14m
Deal found 10/19![United Airlines logo]()
$332
This Southwest deal was found by Cheapflights users on 10/21. 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 11/55:40 am -
1 stop4h 25m
Mon 11/95:50 pm -
2 stops7h 20m
Deal found 10/21![Southwest logo]()
$335
This Southwest deal was found by Cheapflights users on 10/23. 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 11/41:35 pm -
2 stops7h 15m
Wed 11/114:30 pm -
1 stop6h 35m
Deal found 10/23![Southwest logo]()
$342
Best flights from Colorado to HarlingenDiscover carefully curated flight deals from Colorado to Harlingen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 23, 2026.
Discover carefully curated flight deals from Colorado to Harlingen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 23, 2026.
This Southwest deal was found by Cheapflights users on 10/22. 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 11/196:00 am -
1 stop3h 55m
Thu 11/2611:45 am -
1 stop4h 20m
Deal found 10/22![Southwest logo]()
$218
This American Airlines deal was found by Cheapflights users on 10/21. 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 11/512:54 pm -
1 stop4h 17m
Mon 11/96:41 pm -
1 stop5h 20m
Deal found 10/21![American Airlines logo]()
$271
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/101:20 pm -
2 stops8h 28m
Wed 11/115:25 pm -
1 stop5h 20m
Deal found 10/19![United Airlines logo]()
$326
This Delta deal was found by Cheapflights users on 10/22. 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 11/26:05 am -
1 stop6h 18m
Fri 11/62:13 pm -
1 stop6h 53m
Deal found 10/22![Delta logo]()
$464
This Southwest deal was found by Cheapflights users on 10/21. 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 11/54:40 pm -
2 stops5h 55m
Mon 11/94:45 pm -
2 stops6h 00m
Deal found 10/21![Southwest logo]()
$308
This Southwest deal was found by Cheapflights users on 10/21. 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 11/55:40 am -
1 stop4h 25m
Mon 11/95:50 pm -
2 stops7h 20m
Deal found 10/21![Southwest logo]()
$335
This Southwest deal was found by Cheapflights users on 10/20. 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 11/55:35 am -
1 stop5h 45m
Tue 11/107:25 am -
2 stops7h 10m
Deal found 10/20![Southwest logo]()
$389
This Southwest deal was found by Cheapflights users on 10/20. 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 11/412:45 pm -
2 stops8h 05m
Tue 11/107:25 am -
2 stops7h 10m
Deal found 10/20![Southwest logo]()
$394
This Southwest deal was found by Cheapflights users on 10/19. 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 11/34:40 pm -
1 stop4h 05m
Sat 11/77:45 am -
2 stops7h 45m
Deal found 10/19![Southwest logo]()
$404
This Southwest deal was found by Cheapflights users on 10/23. 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 11/48:25 am -
2 stops7h 55m
Wed 11/1112:50 pm -
2 stops7h 10m
Deal found 10/23![Southwest logo]()
$417
This Southwest deal was found by Cheapflights users on 10/19. 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 12/224:30 pm -
1 stop6h 40m
Mon 1/45:50 pm -
1 stop4h 20m
Deal found 10/19![Southwest logo]()
$420
This Southwest deal was found by Cheapflights users on 10/23. 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 12/221:25 pm -
1 stop9h 45m
Wed 12/303:40 pm -
1 stop5h 05m
Deal found 10/23![Southwest logo]()
$469
Last-minute flights from Colorado to HarlingenDiscover last-minute flight deals from Colorado to Harlingen. Data last updated October 23, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado to Harlingen. Data last updated October 23, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/318:40 am -
2 stops10h 07m
Wed 11/45:05 am -
1 stop7h 14m
Deal found 10/19![United Airlines logo]()
$332
This United Airlines deal was found by Cheapflights users on 10/19. 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 10/3112:05 pm -
1 stop6h 42m
Thu 11/55:25 pm -
1 stop5h 20m
Deal found 10/19![United Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/410:01 am -
1 stop5h 00m
Wed 11/115:25 pm -
1 stop5h 50m
Deal found 10/23![United Airlines logo]()
$326
This Southwest deal was found by Cheapflights users on 10/23. 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 11/41:35 pm -
2 stops7h 15m
Wed 11/114:30 pm -
1 stop6h 35m
Deal found 10/23![Southwest logo]()
$342
This American Airlines deal was found by Cheapflights users on 10/21. 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 11/512:54 pm -
1 stop4h 17m
Mon 11/96:41 pm -
1 stop5h 20m
Deal found 10/21![American Airlines logo]()
$271
This Southwest deal was found by Cheapflights users on 10/21. 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 11/54:40 pm -
2 stops5h 55m
Mon 11/95:50 am -
1 stop6h 45m
Deal found 10/21![Southwest logo]()
$276
This American Airlines deal was found by Cheapflights users on 10/21. 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 11/510:41 am -
1 stop6h 30m
Mon 11/96:41 pm -
1 stop6h 07m
Deal found 10/21![American Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 10/21. 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 11/55:40 am -
1 stop4h 25m
Mon 11/95:50 pm -
2 stops7h 20m
Deal found 10/21![Southwest logo]()
$335
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/101:20 pm -
2 stops8h 28m
Wed 11/115:25 pm -
1 stop5h 20m
Deal found 10/19![United Airlines logo]()
$326
This Southwest deal was found by Cheapflights users on 10/19. 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 11/196:00 am -
1 stop3h 55m
Thu 11/265:55 am -
1 stop6h 30m
Deal found 10/19![Southwest logo]()
$207
This Southwest deal was found by Cheapflights users on 10/21. 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 11/206:30 pm -
1 stop4h 05m
Mon 11/234:45 pm -
1 stop5h 15m
Deal found 10/21![Southwest logo]()
$348
This Southwest deal was found by Cheapflights users on 10/21. 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 11/215:15 pm -
1 stop4h 10m
Mon 11/234:45 pm -
1 stop5h 15m
Deal found 10/21![Southwest logo]()
$302
One-way flights from Colorado to HarlingenSearch for one-way flight options from Colorado to Harlingen. Find affordable one-way fares based on user searches. Data last updated October 23, 2026.
Search for one-way flight options from Colorado to Harlingen. Find affordable one-way fares based on user searches. Data last updated October 23, 2026.
This Southwest deal was found by Cheapflights users on 10/19. 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 12/224:30 pm -
1 stop6h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Southwest logo]()
$199
This Southwest deal was found by Cheapflights users on 10/19. 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 12/214:45 pm -
2 stops6h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Southwest logo]()
$211
This American Airlines deal was found by Cheapflights users on 10/19. 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 12/236:15 am -
1 stop7h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![American Airlines logo]()
$213
This Southwest deal was found by Cheapflights users on 10/19. 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 12/195:05 pm -
1 stop5h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Southwest logo]()
$219
This American Airlines deal was found by Cheapflights users on 10/19. 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 12/247:35 am -
1 stop5h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![American Airlines logo]()
$253
This United Airlines deal was found by Cheapflights users on 10/19. 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 12/204:20 pm -
1 stop4h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 10/19. 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 12/226:30 am -
1 stop6h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 10/19. 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 12/219:20 pm -
2 stops23h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 10/19. 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.
Sat 12/196:30 am -
1 stop6h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Delta logo]()
$328
Find flight deals from Colorado to Harlingen
Keep the following information in mind while searching for Colorado to Harlingen flight deals. Data was last updated October 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $207 (Southwest) |
One-way from | $199 (Southwest) |
Popular in | July |
Cheapest in | February |
Average price | $496 |
Good round-trip deal | $476 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado to Harlingen 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 23, 2026.
Use the filters below to find and compare flights from Colorado to Harlingen that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverHarlingen
DEN Denver Intl - HRL Harlingen Valley Intl
DENHRL
Denver Intl
Tue 12/22
4:30 pm-12:10 am
1 stop6h 40m
Harlingen Valley Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$199
DenverHarlingen
DEN Denver Intl - HRL Harlingen Valley Intl
DENHRL
Denver Intl
Thu 11/19
6:00 am-10:55 am
1 stop3h 55m
Harlingen Valley Intl
Thu 11/26
11:45 am-3:05 pm
1 stop4h 20m
$218
Quickest round-trip
DenverHarlingen
DEN Denver Intl - HRL Harlingen Valley Intl
DENHRL
Denver Intl
Sat 12/19
5:05 pm-11:45 pm
1 stop5h 40m
Harlingen Valley Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$219
Colorado SpringsHarlingen
COS Colorado Springs - HRL Harlingen Valley Intl
COSHRL
Colorado Springs
Thu 11/5
12:54 pm-6:11 pm
1 stop4h 17m
Harlingen Valley Intl
Mon 11/9
6:41 pm-11:01 pm
1 stop5h 20m
$271
Colorado SpringsHarlingen
COS Colorado Springs - HRL Harlingen Valley Intl
COSHRL
Colorado Springs
Thu 11/5
4:40 pm-11:35 pm
2 stops5h 55m
Harlingen Valley Intl
Mon 11/9
4:45 pm-9:45 pm
2 stops6h 00m
$308
Colorado SpringsHarlingen
COS Colorado Springs - HRL Harlingen Valley Intl
COSHRL
Colorado Springs
Tue 11/10
1:20 pm-10:48 pm
2 stops8h 28m
Harlingen Valley Intl
Wed 11/11
5:25 pm-9:45 pm
1 stop5h 20m
$326
DenverHarlingen
DEN Denver Intl - HRL Harlingen Valley Intl
DENHRL
Denver Intl
Thu 11/5
5:40 am-11:05 am
1 stop4h 25m
Harlingen Valley Intl
Mon 11/9
5:50 pm-12:10 am
2 stops7h 20m
$335
DenverHarlingen
DEN Denver Intl - HRL Harlingen Valley Intl
DENHRL
Denver Intl
Thu 12/24
10:09 am-9:59 pm
2 stops10h 50m
Harlingen Valley Intl
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$383
DenverHarlingen
DEN Denver Intl - HRL Harlingen Valley Intl
DENHRL
Denver Intl
Thu 11/5
5:35 am-12:20 pm
1 stop5h 45m
Harlingen Valley Intl
Tue 11/10
7:25 am-1:35 pm
2 stops7h 10m
$389
DenverHarlingen
DEN Denver Intl - HRL Harlingen Valley Intl
DENHRL
Denver Intl
Wed 11/4
12:45 pm-9:50 pm
2 stops8h 05m
Harlingen Valley Intl
Tue 11/10
7:25 am-1:35 pm
2 stops7h 10m
$394
Showing 1-10 of 17 resultsSorted by cheapest first
Best time to book a flight from Colorado to Harlingen
Have a flexible travel schedule? Discover the best time to fly to Harlingen from Colorado with our price prediction graph.
DEN-HRL
COS-HRL
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 Colorado to Harlingen
USCO-HRL
DEN-HRL
COS-HRL
What is the cheapest month to book a flight from Colorado to Harlingen?
Currently, February is the cheapest month in which you can book a flight from Colorado to Harlingen (average of $202). Flying from Colorado to Harlingen in July is currently the most expensive (average of $516). 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.
Related info for your journey
Find useful and relevant information for your journey from Colorado to Harlingen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
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Harlingen flight routes
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Alternative routes for Colorado to Harlingen
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Complete your trip
Complete your trip to Harlingen by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado to Harlingen by cabin class
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Other flights to Harlingen
Explore flights to Harlingen departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 23, 2026.
Colorado and Harlingen flights
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Colorado to Harlingen flights
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Top 2 airlines flying from Colorado to Harlingen
Discover the top 2 airlines that operate flights from Colorado to Harlingen. 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 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$196 | Average$396 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$266 | Average$476 | FlexibilityNo cancel fee | On-time69% |