$205+ Cheap flights from Detroit to Harlingen (DTT - 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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — HRL
Nov 22 — Nov 291
Round-trip
1 adult, Economy
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Find cheap flights from Detroit 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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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 Detroit to Harlingen
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Best
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One-way
Cheapest flights from Detroit to HarlingenExplore the most affordable flight options available from Detroit 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 Detroit to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 23, 2026.
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.
Wed 11/187:15 am -
1 stop7h 13m
Wed 12/22:27 pm -
1 stop8h 27m
Deal found 10/19![Delta logo]()
$292
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 11/108:45 am -
1 stop8h 16m
Wed 11/111:59 pm -
1 stop7h 28m
Deal found 10/19![United Airlines logo]()
$345
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.
Wed 11/188:01 am -
1 stop6h 55m
Wed 12/22:24 pm -
1 stop8h 27m
Deal found 10/21![American Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 10/18. 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 11/178:45 am -
1 stop5h 36m
Tue 11/241:59 pm -
1 stop7h 28m
Deal found 10/18![United Airlines logo]()
$378
Best flights from Detroit to HarlingenDiscover carefully curated flight deals from Detroit 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 Detroit 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 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.
Wed 11/187:15 am -
1 stop7h 13m
Wed 12/22:27 pm -
1 stop8h 27m
Deal found 10/19![Delta logo]()
$292
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 11/108:45 am -
1 stop8h 16m
Wed 11/111:59 pm -
1 stop7h 28m
Deal found 10/19![United Airlines logo]()
$345
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 1/151:35 pm -
2 stops8h 30m
Sun 1/1712:00 pm -
2 stops6h 50m
Deal found 10/20![Southwest logo]()
$409
This American Airlines deal was found by Cheapflights users on 10/18. 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 11/181:34 pm -
2 stops10h 25m
Wed 12/210:44 am -
2 stops9h 47m
Deal found 10/18![American Airlines logo]()
$436
This United Airlines deal was found by Cheapflights users on 10/18. 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 11/172:09 pm -
2 stops9h 39m
Tue 11/241:59 pm -
1 stop7h 28m
Deal found 10/18![United Airlines logo]()
$384
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:26 am -
2 stops9h 35m
Wed 12/212:00 pm -
2 stops10h 44m
Deal found 10/20![United Airlines logo]()
$452
Last-minute flights from Detroit to HarlingenDiscover last-minute flight deals from Detroit to Harlingen. Data last updated October 23, 2026 and is based on user searches.
Discover last-minute flight deals from Detroit 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.
Tue 11/108:45 am -
1 stop8h 16m
Wed 11/111:59 pm -
1 stop7h 28m
Deal found 10/19![United Airlines logo]()
$345
This United Airlines deal was found by Cheapflights users on 10/18. 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 11/178:45 am -
1 stop5h 36m
Tue 11/241:59 pm -
1 stop7h 28m
Deal found 10/18![United Airlines logo]()
$378
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.
Wed 11/187:15 am -
1 stop7h 13m
Wed 12/22:27 pm -
1 stop8h 27m
Deal found 10/19![Delta logo]()
$292
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.
Wed 11/188:01 am -
1 stop6h 55m
Wed 12/22:24 pm -
1 stop8h 27m
Deal found 10/21![American Airlines logo]()
$347
One-way flights from Detroit to HarlingenSearch for one-way flight options from Detroit to Harlingen. Find affordable one-way fares based on user searches. Data last updated October 23, 2026.
Search for one-way flight options from Detroit 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 10/22. 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 12/241:25 pm -
2 stops9h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Southwest logo]()
$205
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:00 am -
1 stop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![United Airlines logo]()
$283
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:45 am -
1 stop8h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$304
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.
Sat 12/196:10 am -
2 stops10h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Southwest logo]()
$308
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/14:40 pm -
1 stop6h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![United Airlines logo]()
$356
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.
Sat 11/285:40 am -
2 stops7h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Southwest logo]()
$380
This WAYA 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/286:39 pm -
1 stop17h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Sun Country Air logo]()
$391
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 11/287:15 am -
1 stop7h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Delta logo]()
$400
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/196:00 am -
1 stop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$402
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/314:40 pm -
1 stop6h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![United Airlines logo]()
$423
This American Airlines deal was found by Cheapflights users on 10/18. 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 11/286:44 am -
2 stops12h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![American Airlines logo]()
$535
Find flight deals from Detroit to Harlingen
Discover tips and strategies to find the most affordable flight options for your journey from Detroit (DTT) to Harlingen (HRL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $292 (Delta) |
One-way from | $205 (Southwest) |
Cheapflights Fare Finder
Customize your flight search to find flights from Detroit 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 Detroit to Harlingen that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DetroitHarlingen
DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl
DTWHRL
Detroit Metropolitan Wayne County
Thu 12/24
1:25 pm-9:50 pm
2 stops9h 25m
Harlingen Valley Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$205
DetroitHarlingen
DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl
DTWHRL
Detroit Metropolitan Wayne County
Thu 12/24
6:00 am-1:30 pm
1 stop8h 30m
Harlingen Valley Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$283
DetroitHarlingen
DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl
DTWHRL
Detroit Metropolitan Wayne County
Wed 11/18
7:15 am-1:28 pm
1 stop7h 13m
Harlingen Valley Intl
Wed 12/2
2:27 pm-11:54 pm
1 stop8h 27m
$292
DetroitHarlingen
DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl
DTWHRL
Detroit Metropolitan Wayne County
Fri 11/27
8:45 am-4:01 pm
1 stop8h 16m
Harlingen Valley Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$304
DetroitHarlingen
DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl
DTWHRL
Detroit Metropolitan Wayne County
Sat 12/19
6:10 am-3:45 pm
2 stops10h 35m
Harlingen Valley Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$308
DetroitHarlingen
DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl
DTWHRL
Detroit Metropolitan Wayne County
Tue 11/10
8:45 am-4:01 pm
1 stop8h 16m
Harlingen Valley Intl
Wed 11/11
1:59 pm-10:27 pm
1 stop7h 28m
$345
Quickest round-trip
DetroitHarlingen
DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl
DTWHRL
Detroit Metropolitan Wayne County
Fri 1/1
4:40 pm-9:59 pm
1 stop6h 19m
Harlingen Valley Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$356
DetroitHarlingen
DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl
DTWHRL
Detroit Metropolitan Wayne County
Tue 11/17
2:09 pm-10:48 pm
2 stops9h 39m
Harlingen Valley Intl
Tue 11/24
1:59 pm-10:27 pm
1 stop7h 28m
$384
DetroitHarlingen
DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl
DTWHRL
Detroit Metropolitan Wayne County
Sat 11/28
7:15 am-1:28 pm
1 stop7h 13m
Harlingen Valley Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$400
DetroitHarlingen
DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl
DTWHRL
Detroit Metropolitan Wayne County
Fri 1/15
1:35 pm-9:05 pm
2 stops8h 30m
Harlingen Valley Intl
Sun 1/17
12:00 pm-7:50 pm
2 stops6h 50m
$409
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from Detroit to Harlingen
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Detroit to Harlingen in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Detroit-Harlingen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit-Harlingen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit-Harlingen flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Detroit-Harlingen flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Detroit-Harlingen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Detroit to Harlingen
Have a flexible travel schedule? Discover the best time to fly to Harlingen from Detroit with our price prediction graph.
DTT-HRL
DTW-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 Detroit to Harlingen
DTT-HRL
DTW-HRL
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Harlingen
Get insights into the airlines that provide service to Harlingen. 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 Harlingen. Reviews last updated October 23, 2026.
Peruse reviews from past customers who have flown with American Airlines from Detroit to Harlingen to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.0
Food
6.4
Crew
7.9
Boarding
7.4
Entertainment
6.8
Comfort
7.1
Reviews
1 / 20
8.0
ExcellentMonica,Nov 2025
JAC - DFW
Overall
7.0
Food
6.4
Crew
7.9
Boarding
7.4
Entertainment
6.8
Comfort
7.1
Reviews
1 / 20
8.0
ExcellentMonica,Nov 2025
JAC - DFW
Related info for your journey
Find useful and relevant information for your journey from Detroit to Harlingen. 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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Complete your trip
Complete your trip to Harlingen by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Detroit to Harlingen by cabin class
Find flights from Detroit to Harlingen, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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.
Detroit and Harlingen flights
Browse other Detroit and Harlingen flight options. Last updated on October 23, 2026.
Other flights from Detroit
Browse through other flights departing from Detroit. Flights are based on user searches made on Cheapflights and were last updated on October 23, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Detroit to Harlingen
Discover the top 2 airlines that operate flights from Detroit 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$261 | Average$335 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$264 | Average$398 | FlexibilityNo cancel fee | On-time71% |