DTW - HRL

$181 Find Cheap Flights from Detroit to Harlingen

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Detroit to Harlingen departing on 9/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Harlingen

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Detroit to Harlingen, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Detroit to Harlingen, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Detroit to Harlingen (DTW-HRL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Detroit to Harlingen that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Detroit to Harlingen

Sat, Sep 13 - Tue, Sep 16
American Airlines Logo
4:05 pm - 10:57 pmDTW-HRL
7h 52m1 stop
American Airlines Logo
2:51 pm - 10:40 pmHRL-DTW
6h 49m1 stop
$181American Airlines
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Sat, Oct 18 - Sat, Oct 25
American Airlines Logo
1:07 pm - 11:04 pmDTW-HRL
10h 57m2 stops
American Airlines Logo
5:25 am - 2:05 pmHRL-DTW
7h 40m1 stop
$186American Airlines
Find Deal
Tue, Nov 4 - Wed, Nov 12
Southwest Logo
1:15 pm - 9:05 pmDTW-HRL
8h 50m2 stops
Southwest Logo
10:30 am - 8:40 pmHRL-DTW
9h 10m2 stops
$200Southwest
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Thu, Sep 18 - Sun, Sep 21
American Airlines Logo
5:35 pm - 10:52 pmDTW-HRL
6h 17m1 stop
American Airlines Logo
5:45 am - 2:21 pmHRL-DTW
7h 36m1 stop
$203American Airlines
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Sat, Sep 13 - Tue, Sep 16
American Airlines Logo
6:45 am - 6:05 pmDTW-HRL
12h 20m2 stops
American Airlines Logo
2:51 pm - 10:40 pmHRL-DTW
6h 49m1 stop
$216American Airlines
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Wed, Sep 24 - Wed, Oct 8
American Airlines Logo
9:36 am - 6:05 pmDTW-HRL
9h 29m2 stops
American Airlines Logo
5:25 am - 5:35 pmHRL-DTW
11h 10m2 stops
$221American Airlines
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Tue, Sep 2 - Tue, Sep 9
United Airlines Logo
4:48 pm - 9:52 pmDTW-HRL
6h 04m1 stop
United Airlines Logo
5:20 pm - 11:56 pmHRL-DTW
5h 36m1 stop
$225United Airlines
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Sat, Sep 13 - Tue, Sep 16
Southwest Logo
1:20 pm - 9:25 pmDTW-HRL
9h 05m2 stops
Southwest Logo
2:10 pm - 10:30 pmHRL-DTW
7h 20m2 stops
$252Southwest
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Tue, Sep 2 - Tue, Sep 9
United Airlines Logo
11:00 am - 9:52 pmDTW-HRL
11h 52m3 stops
United Airlines Logo
5:20 pm - 11:56 pmHRL-DTW
5h 36m1 stop
$315United Airlines
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Thu, Dec 25 - Thu, Jan 1
Delta Logo
5:20 am - 2:36 pmDTW-HRL
10h 16m2 stops
Delta Logo
3:35 pm - 11:15 pmHRL-DTW
6h 40m1 stop
$1,645Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Detroit to Harlingen flights

Get data-powered insights and trends into flights from Detroit to Harlingen to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Detroit to Harlingen?

The average price of all round-trip flights from Detroit Metropolitan Wayne County Airport to Harlingen clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Harlingen on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Detroit to Harlingen. For your return ticket, we recommend flying on a Tuesday and avoiding Saturdays for the best deals.

What is the cheapest month to fly from Detroit Metropolitan Wayne County Airport to Harlingen?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Detroit Metropolitan Wayne County Airport to Harlingen, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Detroit Metropolitan Wayne County Airport to Harlingen is April, where tickets cost $262 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is $496 and $426 respectively.

Good to know

Low seasonMay
Cheapest flight$181
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Detroit to Harlingen

When to book flights from Detroit to Harlingen

Are your dates flexible? Find out the best times to travel from Detroit to Harlingen based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Detroit to Harlingen flights

  • What is the cheapest flight from Detroit Metropolitan Wayne County Airport to Harlingen?

    In the last 3 days, the lowest price for a flight from Detroit Metropolitan Wayne County Airport to Harlingen was $185 for a one-way ticket and $181 for a round-trip.

  • Do I need a passport to fly between Detroit and Harlingen?

    No, a passport isn't needed to fly from Detroit to Harlingen. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Detroit to Harlingen?

    Detroit and Harlingen are both served by 1 main airport. You will leave Detroit from Detroit Metropolitan Wayne County and will be arriving at Harlingen Valley Intl.

  • Which aircraft models fly most regularly from Detroit to Harlingen?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Detroit to Harlingen?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Detroit and Harlingen, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Detroit to Harlingen, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Detroit to Harlingen are Delta and United Airlines. With an average price for the route of $347 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $365 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Detroit to Harlingen?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Detroit to Harlingen.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Detroit to Harlingen?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Harlingen from Detroit is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Detroit to Harlingen?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Harlingen with an airline and back to Detroit with another airline. Booking your flights between Detroit and HRL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Detroit to Harlingen?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Harlingen from Detroit up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Detroit to Harlingen

 
See real verified KAYAK customer reviews for airlines flying from Detroit to Harlingen. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Detroit to Harlingen? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7985 reviews
8.2Boarding
7.3Food
8.5Crew
7.9Entertainment
7.9Comfort
Airline reviews

Having to up charge for a seat assignment is not good. Delta can do better

8.0 ExcellentJacob, Aug 2025SLC - LWS
Read more Delta reviews

Having to up charge for a seat assignment is not good. Delta can do better

I liked the friendliness of the staff. The cleanliness of all 3 planes.

Was charged for my luggage despite having been on one ticket from an international flight. Too tired to argue after 15 hours on flight. Was charged for rechecking it at JFK airport. Not sure why those off Kenya Airways were required to do that.

De planning was an absolute mess. We were never told that we weren’t at the gate and that we had to go down unstable stairs and then hop on a bus. People were falling, we couldn’t tell who was in charge. Overall terrible communication that ended up leaving a bad impression at the very end of the experience.

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Delayed and took off even later than the scheduled delay time

Great. Very smooth. Plenty of information. However, wish they would give out a menu in advance of making a dinner choice like other international airlines. The flight attendant says chicken or pasta and there are details about ingredients or spices requiring the passenger to ask which requires the flight attendant to answer many times. So easy to solve this problem. P

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Crew was friendly Love the entertainment in the seat head rest.

Rode in a smaller plane and short trip meant no snacks, no free wifi or tv. It was only 30min flight so honestly wasn’t a big deal to lack these items.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

Gate agent did not hold flight for connection, provided no assistance to get new flight

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

The planes are so dirty! Food crumbs and finger print smudges, Dust over the vents and carpet stains. It’s disgusting.

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

The flight delay in Dallas created a domino effect that impacted all connecting flights, leading to an increase in the number of connections. As a result, I missed my flight from Casablanca to Marrakech due to the tight turnaround when landing in Casablanca. CMN Airport was understaffed; only one employee was available to assist passengers while others just stood by and watched. It was an extremely frustrating situation. Many passengers were crying and banging their hands on the counter while talking to customer service representative Allabough. Unfortunately, Allabough couldn’t change my flight in the system. At the same time, I was on the phone with an American Airlines customer service representative named Solomon, who said he couldn’t make the change either. So, I decided to take an ONYA Voyages train from Casablanca to Marrakech to reach my destination on Friday, June 26. It turned out to be an unpredictable trip.

Pretty bad gate mgmt upon arrival. No open gates and we had to wait at midnight. Shouldn’t be a surprise that an aircraft is coming in.

Comfortable plane ride however on delays disappointment no real details as to why the delays when other flights are leaving the airport

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

I’m impressed that we were on time in Sacramento after having a late departure in Newark and our made it. The staff was friendly and warm.

5.5 hour delay with no explanation on why, along with no proactive effort to reaccomodate me.

Everything you need to know for your flight from Detroit to Harlingen

Information on your arrival and departure airports

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