
Book Cheap Delta flight from Detroit (DTW) to Harlingen (HRL) from CA $532
Find The Best Day to Book a Cheap Delta Flights From Detroit to Harlingen
Cheapest Delta Flights from Detroit (DTW) to Harlingen (HRL)
The cheapest flights to Valley Intl. found within the past 7 days were round trip and CA $532 one way. Prices and availability subject to change. Additional terms may apply.
Grab a great Delta flight from DTW to HRL
To find a great deal on Delta flights with Travelocity, simply enter your origin and destination airports, pick your travel dates, and hit search. From here, you can sort by price, flight duration, and arrival/departure time. You can also filter to find nonstop flights.
Flying Delta Detroit to Harlingen gives you fights to choose from. With that direct flight time of , you’ll be touching down before you know it.
Find cheap flights with Delta between Detroit and Harlingen
Delta has a range of great fares on stacks of flights, and to find the most affordable for you, there are a few tricks you can try. Booking in advance, for example, is a great way to grab a fantastic deal. Also, choose the cheapest month, if you can. One-way flights from Detroit to Harlingen with Delta are April.
The more flexible you are, the more affordable flights you’re likely to find. Consider one-way flights and connecting flights, as well as standard roundtrip and direct options. Even if you’re flying today, cheap last-minute flights are easy to find by entering your travel dates and hitting search.
Reasons to book your Delta flights with Travelocity
Travelocity makes it easy to book a seat, anywhere in the world. The vast inventory, fast search, and advanced filters put some of the best deals on the planet in one place. Whether you’re traveling on business, with friends, family, or on your own, take your pick from some fantastic options. And with free cancellation and pay later options, you can travel more and worry less.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| ATL | USA | Hartsfield-Jackson Atlanta Intl. | 252 |
| DTW | USA | Detroit Metropolitan Wayne County | 156 |
| MSP | USA | Minneapolis - St. Paul Intl. | 131 |
| SLC | USA | Salt Lake City Intl. | 116 |
| SEA | USA | Seattle - Tacoma Intl. | 57 |
| LAX | USA | Los Angeles Intl. | 41 |
| AMS | NLD | Schiphol | 31 |
| YYC | CAN | Calgary Intl. | 26 |
| YYZ | CAN | Pearson Intl. | 24 |
| JFK | USA | John F. Kennedy Intl. | 23 |
Travelers ❤️ these 🏨 after their flight to Harlingen

Smart lock Boho chic 4 min from Airport
Place was very clean. Beds were extremely comfortable. Easy access
Reviewed on Jan 30, 2026

The Parisian Keyless Condo 4 min from Airport and Hospitals
Everything was great
Reviewed on Feb 20, 2026

Wild Cactus 🌵
Great cozy spot, coffee bar could have been a little more stocked. But, no biggie. Property was Clean, neat, and loved all the cactus 10/10 recommend.
Reviewed on Dec 23, 2025
Want more than a(n) Delta Flight from Detroit to Harlingen?
Popular Delta Flight Routes from DTW
Domestic
- Toronto to London (YYZ - LHR)
- Montreal to Cancun (YUL - CUN)
- Montreal to Fort Lauderdale (YUL - FLL)
- Montreal to Orlando (YUL - MCO)
- Toronto to Delhi (YYZ - DEL)
- Toronto to Mumbai (YYZ - BOM)
- Toronto to Fort Lauderdale (YYZ - FLL)
- Montreal to Lisbon (YUL - LIS)
- Montreal to Las Vegas (YUL - LAS)
- Toronto to Montego Bay (YYZ - MBJ)
International
- Montreal to Las Vegas (YUL - LAS)
- Toronto to Las Vegas (YYZ - LAS)
- Montreal to Fort Lauderdale (YUL - FLL)
- Toronto to Montego Bay (YYZ - MBJ)
- Montreal to Cancun (YUL - CUN)
- Calgary to Las Vegas (YYC - LAS)
- Montreal to Orlando (YUL - MCO)
- Montreal to Lisbon (YUL - LIS)
- Montreal to Miami (YUL - MIA)
- Vancouver to Delhi (YVR - DEL)
Most Popular
- Calgary to Dallas (YYC - DFW)
- Detroit to Dallas (DTW - DFW)
- Detroit to Austin (DTW - AUS)
- Delta Buffalo (BUF) to Austin (AUS) flights
- Air Canada Toronto (YYZ) to Dallas (DFW) flights
- Buffalo to Dallas (BUF - DFW)
- Toronto to El Paso (YYZ - ELP)
- Delta Kincheloe (CIU) to Las Vegas (LAS) flights
- Dallas to Vancouver (DFW - YVR)
- Toronto to Austin (YYZ - AUS)
- Air Canada Toronto (YYZ) to Houston (IAH) flights
- WestJet Calgary (YYC) to Houston (IAH) flights
- Winnipeg to Dallas (YWG - DFW)
- Vancouver to Dallas (YVR - DFW)
- Toronto to Dallas (YYZ - DFW)
- United Edmonton (YEG) to Houston (IAH) flights
- Toronto to Houston (YYZ - IAH)
- Detroit to Houston (DTW - IAH)
- Vancouver to Houston (YVR - IAH)
- Xining to El Paso (XNN - ELP)
- Delta Detroit (DTW) to Houston (HOU) flights
- Dallas to Toronto (DFW - YYZ)
- Buffalo to Houston (BUF - IAH)
- Calgary to Houston (YYC - IAH)
- Dallas to Buffalo (DFW - BUF)
- Toronto to Dallas (YTZ - DFW)
- Dallas to Detroit (DFW - DTW)
- Toronto to McAllen (YYZ - MFE)
- Edmonton to Dallas (YEG - DFW)
- Toronto to San Antonio (YYZ - SAT)