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Cheap flights from Detroit to Harlingen from $165

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Detroit to Harlingen departing on 7/27. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Detroit to Harlingen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
7:53 am - 2:42 pm
DTW
-
HRL
7h 49m
1 stop
American Airlines Logo
3:17 pm - 10:58 pm
HRL
-
DTW
6h 41m
1 stop
$329American Airlines
Sat, Aug 15 - Fri, Aug 21
American Airlines Logo
8:21 am - 4:58 pm
DTW
-
HRL
9h 37m
2 stops
American Airlines Logo
10:45 am - 7:02 pm
HRL
-
DTW
7h 17m
1 stop
$347American Airlines
Tue, Sep 15 - Thu, Sep 24
United Airlines Logo
6:15 am - 1:23 pm
DTW
-
HRL
8h 08m
1 stop
United Airlines Logo
2:00 pm - 10:30 pm
HRL
-
DTW
7h 30m
1 stop
$360United Airlines
Thu, Oct 1 - Sun, Oct 4
American Airlines Logo
8:01 am - 3:05 pm
DTW
-
HRL
8h 04m
1 stop
American Airlines Logo
5:28 pm - 11:43 pm
HRL
-
DTW
5h 15m
1 stop
$374American Airlines
Sat, Sep 12 - Mon, Sep 21
American Airlines Logo
8:01 am - 3:05 pm
DTW
-
HRL
8h 04m
1 stop
American Airlines Logo
5:28 pm - 11:43 pm
HRL
-
DTW
5h 15m
1 stop
$378American Airlines
Sat, Sep 12 - Mon, Sep 21
American Airlines Logo
8:01 am - 3:05 pm
DTW
-
HRL
8h 04m
1 stop
American Airlines Logo
5:28 pm - 11:43 pm
HRL
-
DTW
5h 15m
1 stop
$379American Airlines
Sat, Sep 12 - Mon, Sep 21
American Airlines Logo
8:01 am - 3:05 pm
DTW
-
HRL
8h 04m
1 stop
American Airlines Logo
5:28 pm - 11:43 pm
HRL
-
DTW
5h 15m
1 stop
$381American Airlines
Sat, Sep 12 - Mon, Sep 21
American Airlines Logo
8:21 am - 4:58 pm
DTW
-
HRL
9h 37m
2 stops
American Airlines Logo
5:28 pm - 11:43 pm
HRL
-
DTW
5h 15m
1 stop
$385American Airlines
Sat, Sep 12 - Mon, Sep 21
Delta Logo
8:30 am - 1:31 pm
DTW
-
HRL
6h 01m
1 stop
Delta Logo
2:00 pm - 10:33 pm
HRL
-
DTW
7h 33m
1 stop
$386Delta
Tue, Oct 20 - Wed, Dec 23
United Airlines Logo
7:30 am - 3:59 pm
DTW
-
HRL
9h 29m
2 stops
United Airlines Logo
2:00 pm - 10:30 pm
HRL
-
DTW
7h 30m
1 stop
$387United Airlines
Thu, Sep 24 - Sun, Sep 27

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United Airlines flights from Detroit to Harlingen

Our best United Airlines deals on Detroit to Harlingen flight tickets
United Airlines
Oct 1
DTW6:15 amDetroit Metropolitan Wayne County
8h 08m
1 stop
HRL1:23 pmHarlingen Valley Intl
Oct 4
HRL2:00 pmHarlingen Valley Intl
7h 30m
1 stop
DTW10:30 pmDetroit Metropolitan Wayne County
$360
United Airlines
Sep 24
DTW7:30 amDetroit Metropolitan Wayne County
9h 29m
2 stops
HRL3:59 pmHarlingen Valley Intl
Sep 27
HRL2:00 pmHarlingen Valley Intl
7h 30m
1 stop
DTW10:30 pmDetroit Metropolitan Wayne County
$387
United Airlines
Oct 1
DTW6:15 amDetroit Metropolitan Wayne County
8h 08m
1 stop
HRL1:23 pmHarlingen Valley Intl
Oct 4
HRL5:05 amHarlingen Valley Intl
9h 22m
2 stops
DTW3:27 pmDetroit Metropolitan Wayne County
$406

Southwest flights from Detroit to Harlingen

Our best Southwest deals on Detroit to Harlingen flight tickets
Southwest
Aug 3
DTW6:55 amDetroit Metropolitan Wayne County
6h 30m
2 stops
HRL12:25 pmHarlingen Valley Intl
Aug 6
HRL1:55 pmHarlingen Valley Intl
7h 40m
2 stops
DTW10:35 pmDetroit Metropolitan Wayne County
$449
Southwest
Jul 8
DTW6:40 amDetroit Metropolitan Wayne County
6h 25m
2 stops
HRL12:05 pmHarlingen Valley Intl
Jul 13
HRL11:35 amHarlingen Valley Intl
8h 30m
2 stops
DTW9:05 pmDetroit Metropolitan Wayne County
$492
Southwest
Jul 12
DTW7:05 amDetroit Metropolitan Wayne County
8h 55m
2 stops
HRL3:00 pmHarlingen Valley Intl
Jul 16
HRL11:35 amHarlingen Valley Intl
8h 30m
2 stops
DTW9:05 pmDetroit Metropolitan Wayne County
$691

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 June 29, 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

Sat 8/15

7:53 am-2:42 pm

1 stop7h 49m

Harlingen Valley Intl

Fri 8/21

3:17 pm-10:58 pm

1 stop6h 41m

$329

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Tue 9/15

8:21 am-4:58 pm

2 stops9h 37m

Harlingen Valley Intl

Thu 9/24

10:45 am-7:02 pm

1 stop7h 17m

$347

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Thu 10/1

6:15 am-1:23 pm

1 stop8h 08m

Harlingen Valley Intl

Sun 10/4

2:00 pm-10:30 pm

1 stop7h 30m

$360
Quickest round-trip

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 9/12

8:01 am-3:05 pm

1 stop8h 04m

Harlingen Valley Intl

Mon 9/21

5:28 pm-11:43 pm

1 stop5h 15m

$374

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 9/12

8:01 am-3:05 pm

1 stop8h 04m

Harlingen Valley Intl

Mon 9/21

5:28 pm-11:43 pm

1 stop5h 15m

$378

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 9/12

8:01 am-3:05 pm

1 stop8h 04m

Harlingen Valley Intl

Mon 9/21

5:28 pm-11:43 pm

1 stop5h 15m

$379

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 9/12

8:01 am-3:05 pm

1 stop8h 04m

Harlingen Valley Intl

Mon 9/21

5:28 pm-11:43 pm

1 stop5h 15m

$381

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Sat 9/12

8:21 am-4:58 pm

2 stops9h 37m

Harlingen Valley Intl

Mon 9/21

5:28 pm-11:43 pm

1 stop5h 15m

$385

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Tue 10/20

8:30 am-1:31 pm

1 stop6h 01m

Harlingen Valley Intl

Wed 12/23

2:00 pm-10:33 pm

1 stop7h 33m

$386

DetroitHarlingen

DTW - HRL

DTWHRL

Detroit Metropolitan Wayne County

Thu 9/24

7:30 am-3:59 pm

2 stops9h 29m

Harlingen Valley Intl

Sun 9/27

2:00 pm-10:30 pm

1 stop7h 30m

$387

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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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 15% 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

5h 29m

Direct flights

None
The fastest flight from Detroit to Harlingen takes 5h 29m
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 5h 29m.

  • 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
American AirlinesPriceFrom $259Free CancellationRating
7.1
11,768 reviews
Search American Airlines flights
United AirlinesPriceFrom $261Free CancellationRating
7.4
9,894 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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