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Harlingen

$165+ Cheap flights from Detroit to Harlingen (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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
DTT — HRL
Jun 21 — Jun 281
Sun 6/21
Sun 6/28
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 May 22, 2026.

This American Airlines deal was found by Cheapflights users on 5/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/185:37 am
DTW
-
HRL
1 stop5h 36m
American Airlines
Mon 6/224:57 pm
HRL
-
DTW
1 stop5h 44m
American Airlines
Deal found 5/22$329
This American Airlines deal was found by Cheapflights users on 5/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/151:51 pm
DTW
-
HRL
2 stops10h 05m
American Airlines
Thu 9/2410:45 am
HRL
-
DTW
1 stop7h 06m
American Airlines
Deal found 5/22$334
This American Airlines deal was found by Cheapflights users on 5/21. 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.
Mon 6/87:21 pm
DTW
-
HRL
1 stop5h 53m
American Airlines
Fri 6/124:57 pm
HRL
-
DTW
1 stop5h 44m
American Airlines
Deal found 5/21$354
This American Airlines deal was found by Cheapflights users on 5/21. 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.
Tue 7/215:36 am
DTW
-
HRL
1 stop5h 36m
American Airlines
Tue 12/155:38 am
HRL
-
DTW
2 stops11h 32m
American Airlines
Deal found 5/21$358
This United Airlines deal was found by Cheapflights users on 5/19. 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 10/36:15 am
DTW
-
HRL
1 stop8h 08m
United Airlines
Sat 10/101:59 pm
HRL
-
DTW
1 stop7h 31m
United Airlines
Deal found 5/19$368
This American Airlines deal was found by Cheapflights users on 5/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:20 pm
DTW
-
HRL
1 stop5h 54m
American Airlines
Fri 6/124:57 pm
HRL
-
DTW
1 stop5h 44m
American Airlines
Deal found 5/22$399
This Southwest deal was found by Cheapflights users on 5/21. 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.
Mon 8/2411:10 am
DTW
-
HRL
2 stops7h 05m
Southwest
Sat 8/297:00 am
HRL
-
DTW
2 stops9h 30m
Southwest
Deal found 5/21$405
This United Airlines deal was found by Cheapflights users on 5/18. 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 5/2610:13 am
DTW
-
HRL
2 stops10h 36m
United Airlines
Fri 5/292:05 pm
HRL
-
DTW
1 stop7h 19m
United Airlines
Deal found 5/18$417

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 May 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(American Airlines)

One-way from

$165
(American Airlines)

Popular in

December

Cheapest in

October
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. 13% potential increase in price ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($25 potential savings vs. average RT price).
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 May 22, 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

Price

Cheapest round-trip
Quickest round-trip

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Mon 8/24

7:44 am-2:42 pm

1 stop7h 58m

Harlingen Valley Intl

Sat 8/29

5:54 am-2:56 pm

1 stop8h 02m

$329

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Mon 8/24

11:10 am-5:15 pm

2 stops7h 05m

Harlingen Valley Intl

Sat 8/29

7:00 am-5:30 pm

2 stops9h 30m

$405

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 10/3

12:30 pm-7:33 pm

2 stops8h 03m

Harlingen Valley Intl

Sat 10/10

1:59 pm-11:59 pm

2 stops9h 00m

$411

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 10/3

12:30 pm-9:52 pm

2 stops10h 22m

Harlingen Valley Intl

Wed 10/7

1:59 pm-10:30 pm

1 stop7h 31m

$424

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 9/12

12:35 pm-9:52 pm

2 stops10h 17m

Harlingen Valley Intl

Mon 9/21

5:18 pm-3:29 pm

2 stops21h 11m

$520
Cheapest one-way
Quickest one-way

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Wed 6/3

5:36 am-10:13 am

1 stop5h 37m

$190

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Wed 6/3

6:00 am-3:59 pm

2 stops10h 59m

$195

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Thu 6/18

8:40 am-5:00 pm

2 stops9h 20m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/19

Sorted 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 May.
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 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.
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?

Currently, November is the cheapest month in which you can book a flight from Detroit to Harlingen (average of $128). Flying from Detroit to Harlingen in June is currently the most expensive (average of $462). 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.

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 May 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
7.1
Good
11,644 reviews

Comfort

7.2

Crew

7.9

Food

6.4

Boarding

7.5

Overall

7.1

Entertainment

6.9

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.
American Airlines
7.1
Good
11,644 reviews
American Airlines
7.1
Good
11,644 reviews

Comfort

7.2

Crew

7.9

Food

6.4

Boarding

7.5

Overall

7.1

Entertainment

6.9

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?

    American Airlines, Southwest, and United Airlines can get you from Detroit to Harlingen in just under 7h 05m. Your travel time can differ by up to 58m. 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 round-trip?

    Currently priced at $128, Delta will fly you from Detroit to Harlingen and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $259 and $261, respectively. Delta is 67% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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?

    Currently, November is the cheapest month in which you can book a flight from Detroit to Harlingen (average of $128). Flying from Detroit to Harlingen in June is currently the most expensive (average of $462). 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.

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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 May 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$128Average$412FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$259Average$398FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$261Average$365FlexibilityNo cancel feeOn-time69%

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