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Harlingen

$167+ Cheap flights from Detroit to Harlingen, TX (DTT - HRL)

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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — HRL
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Cheap 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 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$251
(American Airlines)

One-way from

$167
(United Airlines)

Popular in

October

Cheapest in

April

Average price

$776
Provider with most accurate pricing for Detroit (DTT)-Harlingen Valley Intl flight deals.
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Provider most trusted by Cheapflights users for Detroit (DTT)-Harlingen Valley Intl flights.
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From Detroit (DTT) to Harlingen Valley Intl
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One-way flight from Detroit (DTT) to Harlingen Valley Intl
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Highest demand for flights based on searches. 33% potential increase in price ($202 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Detroit to Harlingen

Cheapest flights from Detroit to Harlingen
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 20, 2025.

This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/66:00 amDTW - HRL
1 stop6h 40mAmerican Airlines
Thu 12/1110:08 amHRL - DTW
1 stop7h 29mAmerican Airlines
Deal found 10/20$260
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.
Tue 11/45:11 amDTW - HRL
1 stop5h 40mAmerican Airlines
Wed 11/124:02 pmHRL - DTW
1 stop5h 53mAmerican Airlines
Deal found 10/18$285
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.
Mon 11/35:11 amDTW - HRL
1 stop5h 40mAmerican Airlines
Mon 11/34:02 pmHRL - DTW
1 stop5h 53mAmerican Airlines
Deal found 10/19$349
This Delta deal was found by Cheapflights users on 10/17. 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 10/185:45 amDTW - HRL
2 stops9h 58mDelta
Sat 10/253:39 pmHRL - DTW
1 stop5h 46mDelta
Deal found 10/17$397
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/207:46 pmDTW - HRL
1 stop5h 16mAmerican Airlines
Mon 10/2710:06 amHRL - DTW
1 stop7h 27mAmerican Airlines
Deal found 10/20$409
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 11/46:00 amDTW - HRL
2 stops10h 59mUnited Airlines
Wed 11/127:00 amHRL - DTW
2 stops11h 06mUnited Airlines
Deal found 10/19$418
This American Airlines deal was found by Cheapflights users on 10/17. 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 10/184:09 pmDTW - HRL
1 stop7h 55mAmerican Airlines
Sat 10/255:25 amHRL - DTW
1 stop7h 40mAmerican Airlines
Deal found 10/17$434

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 2,558,603 searches. Data last updated October 20, 2025.
Use the filters below to find and compare flights from Detroit to Harlingen that are best for you.

Fly from

Detroit

Fly to

Harlingen

Route

Depart

Return

Price

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Wed 1/14

1:20 pm-6:13 pm

1 stop5h 53m

Harlingen Valley Intl

Tue 1/20

3:22 pm-10:35 pm

1 stop6h 13m

$251

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 12/6

6:00 am-11:40 am

1 stop6h 40m

Harlingen Valley Intl

Thu 12/11

10:08 am-6:37 pm

1 stop7h 29m

$260

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Tue 11/4

5:11 am-9:51 am

1 stop5h 40m

Harlingen Valley Intl

Wed 11/12

4:02 pm-10:55 pm

1 stop5h 53m

$285

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Wed 1/14

2:19 pm-9:59 pm

2 stops8h 40m

Harlingen Valley Intl

Tue 1/20

12:10 pm-11:49 pm

2 stops10h 39m

$341

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Mon 11/3

5:11 am-9:51 am

1 stop5h 40m

Harlingen Valley Intl

Mon 11/3

4:02 pm-10:55 pm

1 stop5h 53m

$349

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Tue 11/4

6:00 am-3:59 pm

2 stops10h 59m

Harlingen Valley Intl

Wed 11/12

7:00 am-7:06 pm

2 stops11h 06m

$418

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sun 10/26

6:46 am-2:19 pm

1 stop8h 33m

Harlingen Valley Intl

Sun 11/2

4:02 pm-11:26 pm

1 stop6h 24m

$498

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 12/6

4:47 pm-9:54 pm

1 stop6h 07m

Harlingen Valley Intl

Thu 12/11

9:20 am-3:59 pm

1 stop5h 39m

$515

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 3/7

6:20 am-10:59 am

1 stop5h 39m

$167

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 3/7

9:20 pm-9:51 am

3 stops37h 31m

$722

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

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.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Detroit-Harlingen, Texas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Detroit-Harlingen, Texas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Detroit-Harlingen, Texas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Detroit-Harlingen, Texas 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, Texas 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.
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

What is the cheapest month to book a flight from Detroit to Harlingen, Texas?

Currently, November is the cheapest month in which you can book a flight from Detroit to Harlingen, Texas (average of $128). Flying from Detroit to Harlingen, Texas in August is currently the most expensive (average of $323). 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.

What is the cheapest time of day to fly from DTT to HRL?

Find hourly flight availability from Detroit to Harlingen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 20, 2025.

It’s optimal to fly from Detroit to Harlingen, Texas in the evening. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight at noon.

How much does it cost to fly round-trip from Detroit to Harlingen, Texas?

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 20, 2025.
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.
American Airlines
7.2
Good
11,024 reviews

Comfort

7.2

Boarding

7.5

Crew

8.0

Entertainment

6.9

Food

6.4

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2025

PIT - DFW

Due to gate changes,we nearly missed our flight. The gate agent reassigned our seats and would NOT give us our assigned seats,but she did honor that same request to the man who arrived after us. Her rudeness and difficulty was not appropriate.
American Airlines
7.2
Good
11,024 reviews
American Airlines
7.2
Good
11,024 reviews

Comfort

7.2

Boarding

7.5

Crew

8.0

Entertainment

6.9

Food

6.4

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2025

PIT - DFW

Due to gate changes,we nearly missed our flight. The gate agent reassigned our seats and would NOT give us our assigned seats,but she did honor that same request to the man who arrived after us. Her rudeness and difficulty was not appropriate.

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.

  • How long is the flight from Detroit to Harlingen, Texas?

    For as low as $251, American Airlines can have you in Harlingen, Texas from Detroit in 5h 53m. Airlines will cover a distance of 1369 mi.

  • What are the cheapest airlines flying from Detroit to Harlingen, Texas round-trip?

    Cheapflights users have booked flights from Detroit to Harlingen, Texas round-trip from $128. Other airlines that can offer you cheap pricing are American Airlines, from $208, and United Airlines, from $292. You may be able to fly from Detroit to Harlingen, Texas for 68% less than the average price by searching for these airlines.

  • Can I find deals for flights from Detroit to Harlingen that include hotel bookings?

    Yes. In addition to deals on Detroit to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Detroit to Harlingen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Detroit to Harlingen.

  • Can I find deals for business class flights from Detroit to Harlingen?

    Yes. Cheapflights offers flight deals from Detroit to Harlingen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Detroit to Harlingen, Texas?

    Currently, November is the cheapest month in which you can book a flight from Detroit to Harlingen, Texas (average of $128). Flying from Detroit to Harlingen, Texas in August is currently the most expensive (average of $323). 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.

See more FAQs

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Top 3 airlines flying from Detroit to Harlingen

Discover the top 3 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 2,558,603 searches. Data last updated October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$128Average$347FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$208Average$390FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$292Average$330FlexibilityNo cancel feeOn-time69%

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