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Cheap flights from Detroit to Harlingen from $329

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to Harlingen departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Detroit to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
4:10 pm - 10:56 pm
DTW
-
HRL
7h 46m
1 stop
American Airlines Logo
10:45 am - 6:51 pm
HRL
-
DTW
7h 06m
1 stop
$329American Airlines
Tue, Sep 15 - Wed, Sep 23
United Airlines Logo
8:50 am - 3:34 pm
DTW
-
HRL
7h 44m
2 stops
United Airlines Logo
2:00 pm - 10:24 pm
HRL
-
DTW
7h 24m
1 stop
$334United Airlines
Tue, Aug 18 - Sun, Aug 23
American Airlines Logo
5:36 am - 10:12 am
DTW
-
HRL
5h 36m
1 stop
American Airlines Logo
12:13 pm - 8:58 pm
HRL
-
DTW
7h 45m
1 stop
$339American Airlines
Tue, Jul 21 - Tue, Dec 15
American Airlines Logo
5:36 am - 10:13 am
DTW
-
HRL
5h 37m
1 stop
American Airlines Logo
10:43 am - 6:29 pm
HRL
-
DTW
6h 46m
1 stop
$340American Airlines
Wed, Jun 3 - Wed, Jun 10
American Airlines Logo
6:40 am - 4:25 pm
DTW
-
HRL
10h 45m
2 stops
American Airlines Logo
10:43 am - 6:29 pm
HRL
-
DTW
6h 46m
1 stop
$346American Airlines
Wed, Jun 3 - Wed, Jun 10
United Airlines Logo
5:50 am - 1:14 pm
DTW
-
HRL
8h 24m
2 stops
United Airlines Logo
5:15 am - 3:28 pm
HRL
-
DTW
9h 13m
2 stops
$349United Airlines
Tue, Sep 15 - Wed, Sep 23
American Airlines Logo
5:36 am - 10:12 am
DTW
-
HRL
5h 36m
1 stop
American Airlines Logo
5:38 am - 6:10 pm
HRL
-
DTW
11h 32m
2 stops
$354American Airlines
Tue, Jul 21 - Tue, Dec 15
American Airlines Logo
6:48 am - 4:31 pm
DTW
-
HRL
10h 43m
2 stops
American Airlines Logo
10:45 am - 6:51 pm
HRL
-
DTW
7h 06m
1 stop
$358American Airlines
Tue, Sep 15 - Wed, Sep 23
American Airlines Logo
6:00 am - 10:16 am
DTW
-
HRL
5h 16m
1 stop
American Airlines Logo
10:45 am - 6:51 pm
HRL
-
DTW
7h 06m
1 stop
$364American Airlines
Tue, Sep 15 - Thu, Sep 24
American Airlines Logo
5:37 am - 10:13 am
DTW
-
HRL
5h 36m
1 stop
American Airlines Logo
4:57 pm - 11:41 pm
HRL
-
DTW
5h 44m
1 stop
$369American Airlines
Thu, Jun 18 - Mon, Jun 22

United Airlines flights from Detroit to Harlingen

Our best United Airlines deals on Detroit to Harlingen flight tickets
United Airlines
Aug 18
DTW8:50 amDetroit Metropolitan Wayne County
7h 44m
2 stops
HRL3:34 pmHarlingen Valley Intl
Aug 23
HRL2:00 pmHarlingen Valley Intl
7h 24m
1 stop
DTW10:24 pmDetroit Metropolitan Wayne County
$334
United Airlines
Sep 15
DTW5:50 amDetroit Metropolitan Wayne County
8h 24m
2 stops
HRL1:14 pmHarlingen Valley Intl
Sep 23
HRL5:15 amHarlingen Valley Intl
9h 13m
2 stops
DTW3:28 pmDetroit Metropolitan Wayne County
$349
United Airlines
Aug 18
DTW8:50 amDetroit Metropolitan Wayne County
7h 44m
2 stops
HRL3:34 pmHarlingen Valley Intl
Aug 23
HRL5:15 amHarlingen Valley Intl
7h 55m
2 stops
DTW2:10 pmDetroit Metropolitan Wayne County
$392

American Airlines flights from Detroit to Harlingen

Our best American Airlines deals on Detroit to Harlingen flight tickets
American Airlines
Sep 15
DTW4:10 pmDetroit Metropolitan Wayne County
7h 46m
1 stop
HRL10:56 pmHarlingen Valley Intl
Sep 23
HRL10:45 amHarlingen Valley Intl
7h 06m
1 stop
DTW6:51 pmDetroit Metropolitan Wayne County
$329
American Airlines
Jul 21
DTW5:36 amDetroit Metropolitan Wayne County
5h 36m
1 stop
HRL10:12 amHarlingen Valley Intl
Dec 15
HRL12:13 pmHarlingen Valley Intl
7h 45m
1 stop
DTW8:58 pmDetroit Metropolitan Wayne County
$339
American Airlines
Jun 3
DTW5:36 amDetroit Metropolitan Wayne County
5h 37m
1 stop
HRL10:13 amHarlingen Valley Intl
Jun 10
HRL10:43 amHarlingen Valley Intl
6h 46m
1 stop
DTW6:29 pmDetroit Metropolitan Wayne County
$340

momondo 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, momondo users made 832,500 searches. Data last updated May 11, 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

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Tue 9/15

4:10 pm-10:56 pm

1 stop7h 46m

Harlingen Valley Intl

Wed 9/23

10:45 am-6:51 pm

1 stop7h 06m

$329

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Tue 8/18

8:50 am-3:34 pm

2 stops7h 44m

Harlingen Valley Intl

Sun 8/23

2:00 pm-10:24 pm

1 stop7h 24m

$334

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Tue 7/21

5:36 am-10:12 am

1 stop5h 36m

Harlingen Valley Intl

Tue 12/15

12:13 pm-8:58 pm

1 stop7h 45m

$339

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Wed 6/3

5:36 am-10:13 am

1 stop5h 37m

Harlingen Valley Intl

Wed 6/10

10:43 am-6:29 pm

1 stop6h 46m

$340

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Wed 6/3

6:40 am-4:25 pm

2 stops10h 45m

Harlingen Valley Intl

Wed 6/10

10:43 am-6:29 pm

1 stop6h 46m

$346

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Tue 9/15

5:50 am-1:14 pm

2 stops8h 24m

Harlingen Valley Intl

Wed 9/23

5:15 am-3:28 pm

2 stops9h 13m

$349

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Tue 7/21

5:36 am-10:12 am

1 stop5h 36m

Harlingen Valley Intl

Tue 12/15

5:38 am-6:10 pm

2 stops11h 32m

$354

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Tue 9/15

6:48 am-4:31 pm

2 stops10h 43m

Harlingen Valley Intl

Wed 9/23

10:45 am-6:51 pm

1 stop7h 06m

$358

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Tue 9/15

6:00 am-10:16 am

1 stop5h 16m

Harlingen Valley Intl

Thu 9/24

10:45 am-6:51 pm

1 stop7h 06m

$364
Quickest round-trip

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Thu 6/18

5:37 am-10:13 am

1 stop5h 36m

Harlingen Valley Intl

Mon 6/22

4:57 pm-11:41 pm

1 stop5h 44m

$369

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Harlingen from

How to get the cheapest flight ticket from Detroit to Harlingen

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Harlingen?

If you aren’t able to travel during the month of November, then book flights to Harlingen from Detroit during January instead. Flights to Harlingen in January, while not as cheap as those in November, still average around $202.

Can stopping save me money on Detroit to Harlingen flights?

You could potentially save up to 25% on your flight if you consider stops on a Detroit to Harlingen flight.

When to book flights from Detroit to Harlingen

Are you open to changing your travel dates? Check out the ideal times to fly from Detroit to Harlingen according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Detroit to Harlingen (DTT to HRL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Detroit to Harlingen

Fastest flight time

6h 55m

Direct flights

None
The fastest flight from Detroit to Harlingen takes 6h 55m
There are no direct flights from Detroit to Harlingen. There are no popular flight routes from Detroit to Harlingen.
Search flight deals

Frequently asked questions about flying from Detroit to Harlingen

  • How far is Detroit to Harlingen Valley Intl by plane?

    The distance between Detroit and Harlingen Valley Intl is about 1388.9 mi. By plane, this route typically takes 6h 55m.

  • When did momondo last update prices for flights from Detroit to Harlingen Valley Intl Airport?

    Prices for flights from Detroit to Harlingen Valley Intl Airport were last updated today.

  • How many operators does momondo search for flights from Detroit to Harlingen Valley Intl Airport?

  • How old do you have to be to fly from Detroit to Harlingen Valley Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Detroit to Harlingen Valley Intl Airport.

  • What documentation or ID do you need to fly to Harlingen Valley Intl Airport?

    The necessary travel and health documents for your Harlingen Valley Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Detroit to Harlingen?

Best airlines flying from Detroit to Harlingen

Compare and see reviews for airlines that fly from Detroit to Harlingen with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $128Free CancellationRating
7.9
8,451 reviews
Search Delta flights
American AirlinesPriceFrom $259Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights
United AirlinesPriceFrom $261Free CancellationRating
7.4
9,699 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Detroit to Harlingen?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Detroit to Harlingen for you.

Can I find flights from Detroit to Harlingen with flexible booking policies on momondo?

All flight searches from Detroit to Harlingen on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Detroit to Harlingen?

momondo provides multiple filters to help you find the best flight to Harlingen from Detroit. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Detroit to Harlingen right now. Can momondo alert me if prices change?

Price alerts on flights to Harlingen from Detroit are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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