HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Harlingen

$251+ Cheap flights from Detroit to Harlingen, TX (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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — HRL
oct. 15 — oct. 221
mer. 10/15
mer. 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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

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 septembre 15, 2025.

Round-trip from

$251
(American Airlines)

Popular in

October

Cheapest in

April
From Detroit (DTT) to Harlingen Valley Intl
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($115 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($31 potential savings vs. average RT price).
Search Deals

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 septembre 15, 2025.

This American Airlines deal was found by Cheapflights users on 9/13. 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.
mar. 11/43:50 pmDTW - HRL
1 stop8h 24mAmerican Airlines
mer. 11/1210:21 amHRL - DTW
1 stop7h 21mAmerican Airlines
Deal found 9/13$251
This American Airlines deal was found by Cheapflights users on 9/13. 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.
sam. 10/186:02 pmDTW - HRL
1 stop6h 02mAmerican Airlines
sam. 10/2510:08 amHRL - DTW
2 stops12h 17mAmerican Airlines
Deal found 9/13$256
This American Airlines deal was found by Cheapflights users on 9/12. 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.
ven. 9/264:05 pmDTW - HRL
1 stop7h 52mAmerican Airlines
mar. 9/302:51 pmHRL - DTW
2 stops7h 30mAmerican Airlines
Deal found 9/12$314
This American Airlines deal was found by Cheapflights users on 9/14. 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.
lun. 9/296:07 pmDTW - HRL
1 stop5h 50mAmerican Airlines
ven. 10/35:45 amHRL - DTW
1 stop7h 35mAmerican Airlines
Deal found 9/14$319
This United Airlines deal was found by Cheapflights users on 9/12. 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.
sam. 10/186:00 amDTW - HRL
2 stops8h 19mUnited Airlines
sam. 10/255:00 amHRL - DTW
2 stops10h 51mUnited Airlines
Deal found 9/12$329

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 septembre 15, 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

mar. 11/4

3:50 pm-11:14 pm

1 stop8h 24m

Harlingen Valley Intl

mer. 11/12

10:21 am-6:42 pm

1 stop7h 21m

$251

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

sam. 10/18

6:02 pm-11:04 pm

1 stop6h 02m

Harlingen Valley Intl

sam. 10/25

5:25 am-2:05 pm

1 stop7h 40m

$251

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

ven. 9/26

4:05 pm-10:57 pm

1 stop7h 52m

Harlingen Valley Intl

mar. 9/30

2:51 pm-11:21 pm

2 stops7h 30m

$314

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

sam. 10/18

6:00 am-1:19 pm

2 stops8h 19m

Harlingen Valley Intl

sam. 10/25

5:00 am-4:51 pm

2 stops10h 51m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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, April is the cheapest month in which you can book a flight from Detroit to Harlingen, Texas (average of $267). Flying from Detroit to Harlingen, Texas in June is currently the most expensive (average of $382). 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 septembre 15, 2025.

It’s optimal to fly from Detroit to Harlingen, Texas in the morning. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the afternoon.

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 septembre 15, 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
10,000 reviews

Entertainment

6.9

Boarding

7.5

Crew

8.0

Food

6.4

Overall

7.2

Comfort

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
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Boarding

7.5

Crew

8.0

Food

6.4

Overall

7.2

Comfort

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 8h 24m. 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 66% 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, April is the cheapest month in which you can book a flight from Detroit to Harlingen, Texas (average of $267). Flying from Detroit to Harlingen, Texas in June is currently the most expensive (average of $382). 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

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.

Alternative routes for Detroit to Harlingen

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Dallas/Fort Worth flights
Midway to Dallas/Fort Worth flights
Detroit to Dallas/Fort Worth flights
O'Hare Intl to Austin flights
O'Hare Intl to Hobby flights
O'Hare Intl to George Bush Intcntl flights
Midway to Hobby flights
O'Hare Intl to Love Field flights
Midway to Love Field flights
Detroit to Hobby flights
Detroit to Austin flights
O'Hare Intl to San Antonio flights
Detroit to George Bush Intcntl flights
Midway to George Bush Intcntl flights
Grand Rapids to Dallas/Fort Worth flights
Detroit to San Antonio flights
Detroit to Love Field flights
Midway to Austin flights
Grand Rapids to Hobby flights
South Bend to Dallas/Fort Worth flights
Grand Rapids to George Bush Intcntl flights
Midway to San Antonio flights
O'Hare Intl to El Paso flights
Flint to Dallas/Fort Worth flights
Grand Rapids to San Antonio flights
Traverse City to Hobby flights
Grand Rapids to Love Field flights
O'Hare Intl to McAllen flights
Traverse City to George Bush Intcntl flights
South Bend to Hobby flights
Flint to Hobby flights
Traverse City to Dallas/Fort Worth flights
Flint to George Bush Intcntl flights
Grand Rapids to Austin flights
Midway to El Paso flights
Traverse City to Austin flights
Detroit to El Paso flights
South Bend to George Bush Intcntl flights
Flint to Austin flights
Grand Rapids to McAllen flights
Marquette to Dallas/Fort Worth flights
Detroit to Corpus Christi flights
Lansing to Hobby flights
O'Hare Intl to Brownsville flights
Grand Rapids to El Paso flights
O'Hare Intl to Midland flights
Grand Rapids to Harlingen flights
Detroit to Lubbock flights
Detroit to Harlingen flights
Bay City to Dallas/Fort Worth flights

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 septembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$128Average$347FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$208Average$359FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$292Average$365FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.