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Harlingen

$129+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — HRL
Mar 24 — Mar 311
Tue 3/24
Tue 3/31
1 adult, Economy
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Cheap 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 February 22, 2026.

This United Airlines deal was found by Cheapflights users on 2/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:47 pm
DTW
-
HRL
1 stop6h 12m
United Airlines
Mon 4/135:18 pm
HRL
-
DTW
1 stop5h 39m
United Airlines
Deal found 2/21$288
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Tue 9/158:50 am
DTW
-
HRL
2 stops7h 44m
United Airlines
Thu 9/245:16 pm
HRL
-
DTW
1 stop5h 28m
United Airlines
Deal found 2/20$294
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Tue 3/1011:33 am
DTW
-
HRL
1 stop7h 43m
American Airlines
Wed 3/182:45 pm
HRL
-
DTW
1 stop8h 13m
American Airlines
Deal found 2/19$311
This American Airlines deal was found by Cheapflights users on 2/18. 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 9/127:12 am
DTW
-
HRL
1 stop8h 03m
American Airlines
Mon 9/214:02 pm
HRL
-
DTW
1 stop5h 06m
American Airlines
Deal found 2/18$314
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Tue 4/77:53 am
DTW
-
HRL
1 stop7h 24m
American Airlines
Fri 4/102:47 pm
HRL
-
DTW
1 stop5h 56m
American Airlines
Deal found 2/19$331
This American Airlines deal was found by Cheapflights users on 2/21. 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.
Sun 3/84:01 pm
DTW
-
HRL
1 stop7h 52m
American Airlines
Thu 3/122:45 pm
HRL
-
DTW
1 stop8h 13m
American Airlines
Deal found 2/21$339
This United Airlines deal was found by Cheapflights users on 2/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:15 am
DTW
-
HRL
2 stops11h 44m
United Airlines
Sat 5/912:10 pm
HRL
-
DTW
2 stops10h 49m
United Airlines
Deal found 2/21$341

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 February 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$288
(United Airlines)

One-way from

$129
(Delta)

Popular in

October

Cheapest in

April

Average price

$442
Provider with most accurate pricing for Detroit (DTT)-Harlingen Valley Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Detroit (DTT)-Harlingen Valley Intl flights.
Search Deals
From Detroit (DTT) to Harlingen Valley Intl
Search Deals
One-way flight from Detroit (DTT) to Harlingen Valley Intl
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 22, 2026.
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

Tue 3/10

11:33 am-6:16 pm

1 stop7h 43m

Harlingen Valley Intl

Wed 3/18

2:45 pm-11:58 pm

1 stop8h 13m

$311

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Tue 5/5

11:05 am-4:04 pm

1 stop5h 59m

Harlingen Valley Intl

Sat 5/9

7:00 am-4:06 pm

1 stop8h 06m

$331

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 5/2

11:05 am-4:04 pm

1 stop5h 59m

Harlingen Valley Intl

Wed 5/6

5:18 pm-11:47 pm

1 stop5h 29m

$331

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Fri 3/6

4:01 pm-10:53 pm

1 stop7h 52m

Harlingen Valley Intl

Tue 3/10

2:36 pm-12:31 am

2 stops8h 55m

$367

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Wed 4/22

7:00 am-3:05 pm

1 stop9h 05m

$129

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Wed 4/1

7:40 am-2:14 pm

1 stop7h 34m

$136

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Mon 5/4

7:00 am-3:05 pm

1 stop9h 05m

$145

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Mon 5/4

10:00 am-8:00 pm

2 stops11h 00m

$190

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Wed 4/1

6:00 am-4:04 pm

2 stops11h 04m

$193

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Mon 5/4

3:35 pm-11:00 pm

2 stops8h 25m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 15 results
1
2

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 December is currently the most expensive (average of $346). 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 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 February 22, 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.
American Airlines
7.2
Good
11,338 reviews

Boarding

7.5

Crew

8.0

Comfort

7.2

Food

6.4

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.
American Airlines
7.2
Good
11,338 reviews
American Airlines
7.2
Good
11,338 reviews

Boarding

7.5

Crew

8.0

Comfort

7.2

Food

6.4

Entertainment

6.9

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.

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 $331, American Airlines can have you in Harlingen, Texas from Detroit in 5h 59m. Airlines will cover a distance of 1369 mi. This flight may include one or multiple stops.

  • 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 $250, and United Airlines, from $288. You may be able to fly from Detroit to Harlingen, Texas for 69% 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 December is currently the most expensive (average of $346). 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 February 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$128Average$412FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$238Average$353FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$269Average$365FlexibilityNo cancel feeOn-time69%

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