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Cheap flights from Detroit to Harlingen from $170

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 11/22. 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.
Southwest Logo
5:35 am - 1:00 pmDTW  Detroit Metropolitan Wayne County-HRL Harlingen Valley Intl
8h 25m2 stops Baltimore/Washington Houston Hobby
Southwest Logo
1:45 pm - 9:35 pmHRL  Harlingen Valley Intl-DTW Detroit Metropolitan Wayne County
6h 50m2 stops Austin Bergstrom Nashville Intl
$234Southwest
Tue, Sep 15 - Tue, Sep 22
United Airlines Logo
8:45 am - 4:01 pmDTW  Detroit Metropolitan Wayne County-HRL Harlingen Valley Intl
8h 16m1 stop Houston George Bush Intcntl
United Airlines Logo
1:59 pm - 10:27 pmHRL  Harlingen Valley Intl-DTW Detroit Metropolitan Wayne County
7h 28m1 stop Houston George Bush Intcntl
$257United Airlines
Tue, Oct 27 - Tue, Nov 3
Delta Logo
8:50 am - 1:23 pmDTW  Detroit Metropolitan Wayne County-HRL Harlingen Valley Intl
5h 33m1 stop Minneapolis St Paul
Delta Logo
2:13 pm - 11:30 pmHRL  Harlingen Valley Intl-DTW Detroit Metropolitan Wayne County
8h 17m1 stop Minneapolis St Paul
$257Delta
Wed, Oct 28 - Mon, Nov 2
United Airlines Logo
8:45 am - 4:01 pmDTW  Detroit Metropolitan Wayne County-HRL Harlingen Valley Intl
8h 16m1 stop Houston George Bush Intcntl
United Airlines Logo
1:59 pm - 10:27 pmHRL  Harlingen Valley Intl-DTW Detroit Metropolitan Wayne County
7h 28m1 stop Houston George Bush Intcntl
$257United Airlines
Tue, Oct 27 - Mon, Nov 2
United Airlines Logo
6:18 am - 4:01 pmDTW  Detroit Metropolitan Wayne County-HRL Harlingen Valley Intl
10h 43m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
1:59 pm - 10:27 pmHRL  Harlingen Valley Intl-DTW Detroit Metropolitan Wayne County
7h 28m1 stop Houston George Bush Intcntl
$262United Airlines
Tue, Oct 27 - Mon, Nov 2
Southwest Logo
8:45 am - 3:50 pmDTW  Detroit Metropolitan Wayne County-HRL Harlingen Valley Intl
8h 05m2 stops Chicago Midway Houston Hobby
Southwest Logo
5:30 am - 12:40 pmHRL  Harlingen Valley Intl-DTW Detroit Metropolitan Wayne County
6h 10m2 stops Houston Hobby Lambert-St Louis
$282Southwest
Wed, Sep 16 - Mon, Sep 21
Delta Logo
8:50 am - 1:23 pmDTW  Detroit Metropolitan Wayne County-HRL Harlingen Valley Intl
5h 33m1 stop Minneapolis St Paul
Delta Logo
2:13 pm - 11:30 pmHRL  Harlingen Valley Intl-DTW Detroit Metropolitan Wayne County
8h 17m1 stop Minneapolis St Paul
$298Delta
Wed, Oct 28 - Sun, Nov 1
American Airlines Logo
5:10 pm - 10:48 pmDTW  Detroit Metropolitan Wayne County-HRL Harlingen Valley Intl
6h 38m1 stop Dallas/Fort Worth
American Airlines Logo
10:45 am - 7:01 pmHRL  Harlingen Valley Intl-DTW Detroit Metropolitan Wayne County
7h 16m1 stop Dallas/Fort Worth
$339American Airlines
Tue, Sep 15 - Thu, Sep 24
American Airlines Logo
5:10 pm - 10:48 pmDTW  Detroit Metropolitan Wayne County-HRL Harlingen Valley Intl
6h 38m1 stop Dallas/Fort Worth
American Airlines Logo
5:28 pm - 11:43 pmHRL  Harlingen Valley Intl-DTW Detroit Metropolitan Wayne County
5h 15m1 stop Dallas/Fort Worth
$339American Airlines
Tue, Sep 15 - Tue, Sep 22
American Airlines Logo
8:01 am - 3:05 pmDTW  Detroit Metropolitan Wayne County-HRL Harlingen Valley Intl
8h 04m1 stop Dallas/Fort Worth
American Airlines Logo
5:51 am - 3:08 pmHRL  Harlingen Valley Intl-DTW Detroit Metropolitan Wayne County
8h 17m1 stop Dallas/Fort Worth
$339American Airlines
Fri, Oct 2 - Sun, Oct 4

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Southwest flights from Detroit to Harlingen

Our best Southwest deals on Detroit to Harlingen flight tickets
Southwest
Sep 15
DTW5:35 amDetroit Metropolitan Wayne County
8h 25m
2 stops
HRL1:00 pmHarlingen Valley Intl
Sep 22
HRL1:45 pmHarlingen Valley Intl
6h 50m
2 stops
DTW9:35 pmDetroit Metropolitan Wayne County
$234
Southwest
Sep 16
DTW8:45 amDetroit Metropolitan Wayne County
8h 05m
2 stops
HRL3:50 pmHarlingen Valley Intl
Sep 21
HRL5:30 amHarlingen Valley Intl
6h 10m
2 stops
DTW12:40 pmDetroit Metropolitan Wayne County
$282
Southwest
Sep 8
DTW5:35 amDetroit Metropolitan Wayne County
8h 25m
2 stops
HRL1:00 pmHarlingen Valley Intl
Sep 15
HRL1:45 pmHarlingen Valley Intl
6h 50m
2 stops
DTW9:35 pmDetroit Metropolitan Wayne County
$370

American Airlines flights from Detroit to Harlingen

Our best American Airlines deals on Detroit to Harlingen flight tickets
American Airlines
Sep 15
DTW5:10 pmDetroit Metropolitan Wayne County
6h 38m
1 stop
HRL10:48 pmHarlingen Valley Intl
Sep 22
HRL5:28 pmHarlingen Valley Intl
5h 15m
1 stop
DTW11:43 pmDetroit Metropolitan Wayne County
$339
American Airlines
Sep 22
DTW5:10 pmDetroit Metropolitan Wayne County
6h 38m
1 stop
HRL10:48 pmHarlingen Valley Intl
Sep 30
HRL5:28 pmHarlingen Valley Intl
5h 15m
1 stop
DTW11:43 pmDetroit Metropolitan Wayne County
$347
American Airlines
Sep 15
DTW5:10 pmDetroit Metropolitan Wayne County
6h 38m
1 stop
HRL10:48 pmHarlingen Valley Intl
Sep 24
HRL4:53 pmHarlingen Valley Intl
5h 50m
1 stop
DTW11:43 pmDetroit Metropolitan Wayne County
$350

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 August 14, 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 Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl

DTWHRL

Detroit Metropolitan Wayne County

Tue 9/15

5:35 am-1:00 pm

2 stops8h 25m

Harlingen Valley Intl

Tue 9/22

1:45 pm-9:35 pm

2 stops6h 50m

$234

DetroitHarlingen

DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl

DTWHRL

Detroit Metropolitan Wayne County

Tue 10/27

8:45 am-4:01 pm

1 stop8h 16m

Harlingen Valley Intl

Tue 11/3

1:59 pm-10:27 pm

1 stop7h 28m

$257

DetroitHarlingen

DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl

DTWHRL

Detroit Metropolitan Wayne County

Wed 10/28

8:50 am-1:23 pm

1 stop5h 33m

Harlingen Valley Intl

Mon 11/2

2:13 pm-11:30 pm

1 stop8h 17m

$257

DetroitHarlingen

DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl

DTWHRL

Detroit Metropolitan Wayne County

Tue 10/27

8:45 am-4:01 pm

1 stop8h 16m

Harlingen Valley Intl

Mon 11/2

1:59 pm-10:27 pm

1 stop7h 28m

$257

DetroitHarlingen

DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl

DTWHRL

Detroit Metropolitan Wayne County

Tue 10/27

6:18 am-4:01 pm

2 stops10h 43m

Harlingen Valley Intl

Mon 11/2

1:59 pm-10:27 pm

1 stop7h 28m

$262

DetroitHarlingen

DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl

DTWHRL

Detroit Metropolitan Wayne County

Wed 9/16

8:45 am-3:50 pm

2 stops8h 05m

Harlingen Valley Intl

Mon 9/21

5:30 am-12:40 pm

2 stops6h 10m

$282

DetroitHarlingen

DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl

DTWHRL

Detroit Metropolitan Wayne County

Wed 10/28

8:50 am-1:23 pm

1 stop5h 33m

Harlingen Valley Intl

Sun 11/1

2:13 pm-11:30 pm

1 stop8h 17m

$298

DetroitHarlingen

DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl

DTWHRL

Detroit Metropolitan Wayne County

Tue 9/15

5:10 pm-10:48 pm

1 stop6h 38m

Harlingen Valley Intl

Thu 9/24

10:45 am-7:01 pm

1 stop7h 16m

$339
Quickest round-trip

DetroitHarlingen

DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl

DTWHRL

Detroit Metropolitan Wayne County

Tue 9/15

5:10 pm-10:48 pm

1 stop6h 38m

Harlingen Valley Intl

Tue 9/22

5:28 pm-11:43 pm

1 stop5h 15m

$339

DetroitHarlingen

DTW Detroit Metropolitan Wayne County - HRL Harlingen Valley Intl

DTWHRL

Detroit Metropolitan Wayne County

Fri 10/2

8:01 am-3:05 pm

1 stop8h 04m

Harlingen Valley Intl

Sun 10/4

5:51 am-3:08 pm

1 stop8h 17m

$339

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 April, then book flights to Harlingen from Detroit during March instead. Flights to Harlingen in March, while not as cheap as those in April, still average around $292.

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 39m

Direct flights

None
The fastest flight from Detroit to Harlingen takes 5h 39m
There are no direct flights from Detroit to Harlingen. There are no popular flight routes from Detroit to Harlingen.
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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 39m.

  • 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
11,930 reviews
Search American Airlines flights
United AirlinesPriceFrom $261Free CancellationRating
7.4
10,114 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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