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Harlingen

$185+ Cheap flights from Denver to Harlingen, TX (DEN - HRL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HRL
Mar 9 — Mar 161
Sun 3/9
Sun 3/16
1 adult, Economy
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Cheap flight deals from Denver to Harlingen

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Harlingen (HRL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(Delta)

One-way from

$185
(American Airlines)

Popular in

July

Cheapest in

April

Average price

$338
Provider with most accurate pricing for Denver Intl-Harlingen Valley Intl flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Harlingen Valley Intl flights.
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From Denver Intl to Harlingen Valley Intl
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One-way flight from Denver Intl to Harlingen Valley Intl
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Highest demand for flights based on searches. 13% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Denver to Harlingen

Cheapest flights from Denver to Harlingen
Explore the most affordable flight options available from Denver to Harlingen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 4, 2025.

This Delta deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/36:25 amDEN - HRL
1 stop6h 20mDelta
Wed 4/92:40 pmHRL - DEN
1 stop9h 22mDelta
Deal found 3/3$217
This Southwest deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/163:15 pmDEN - HRL
2 stops6h 45mSouthwest
Thu 4/247:00 amHRL - DEN
1 stop5h 00mSouthwest
Deal found 3/3$222
This American Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/266:32 pmDEN - HRL
1 stop4h 31mAmerican Airlines
Wed 4/27:54 pmHRL - DEN
1 stop5h 05mAmerican Airlines
Deal found 3/3$237
This United deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/265:20 pmDEN - HRL
1 stop4h 54mUnited Airlines
Wed 4/22:05 pmHRL - DEN
2 stops19h 49mUnited Airlines
Deal found 3/3$336

Find flights from Denver to Harlingen within your budget

Customize your flight search to find flights from Denver 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, Cheapflights users made 2,558,603 searches. Data last updated March 4, 2025.

Fly from

Denver

Fly to

Harlingen

Route

Depart

Return

Price

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Thu 4/3

6:25 am-1:45 pm

1 stop6h 20m

Harlingen Valley Intl

Wed 4/9

2:40 pm-11:02 pm

1 stop9h 22m

$217

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 4/16

3:15 pm-11:00 pm

2 stops6h 45m

Harlingen Valley Intl

Thu 4/24

7:00 am-11:00 am

1 stop5h 00m

$222

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 3/26

6:32 pm-12:03 am

1 stop4h 31m

Harlingen Valley Intl

Wed 4/2

7:54 pm-11:59 pm

1 stop5h 05m

$237

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Wed 3/26

5:20 pm-11:14 pm

1 stop4h 54m

Harlingen Valley Intl

Wed 4/2

2:05 pm-8:54 am

2 stops19h 49m

$336

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sun 3/16

6:32 pm-12:03 am

1 stop4h 31m

$185

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sun 3/9

3:40 pm-11:45 pm

2 stops7h 05m

$270

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sat 3/8

10:00 am-1:44 pm

Nonstop2h 44m

$350

DenverHarlingen

DEN - HRL

DENHRL

Denver Intl

Sun 3/16

6:15 am-11:27 am

3 stops28h 12m

$576

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Compare providers for flights from Denver to Harlingen

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Harlingen in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Harlingen, Texas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Harlingen, Texas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Harlingen, Texas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Harlingen, Texas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Harlingen, Texas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Harlingen

Have a flexible travel schedule? Discover the best time to fly to Harlingen from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Denver to Harlingen

Get recent, data-driven insights about flights from Denver to Harlingen including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Denver to Harlingen, Texas?

Currently, April is the cheapest month in which you can book a flight from Denver to Harlingen, Texas (average of $267). Flying from Denver to Harlingen, Texas in July is currently the most expensive (average of $420). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to HRL?

Find hourly flight availability from Denver to Harlingen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 4, 2025.

It’s typically best to fly out from Denver to Harlingen, Texas in the afternoon. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Harlingen by month

Plan your trip to Harlingen by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Harlingen, Texas ranges from 1.1 - 5.2 inches per month. September is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Harlingen, Texas when rainfall is around 1.1 in.

Temperature in Harlingen by month

Plan your trip to Harlingen by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Harlingen, Texas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 60.8 F).

Reviews of airlines servicing Harlingen

Get insights into the airlines that provide service to Harlingen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Harlingen. Reviews last updated March 4, 2025.
Read through reviews of airlines operating flights from Denver to Harlingen, such as Southwest, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,333 reviews

Food

7.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Southwest
8.1
Very good
4,333 reviews
Southwest
8.1
Very good
4,333 reviews

Food

7.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Delta
8.0
Very good
8,070 reviews
Southwest
8.1
Very good
4,333 reviews

Food

7.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

United Airlines
7.4
Good
8,679 reviews
Southwest
8.1
Very good
4,333 reviews

Food

7.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,333 reviews

Food

7.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Boarding

8.2

Overall

8.1

Reviews

1 / 20

10.0
Excellent

Sarah,Aug 2024

MDW - AUS

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Related info for your journey

Find useful and relevant information for your journey from Denver to Harlingen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Denver to Harlingen, Texas round-trip?

    Delta, at $217, was found to be the cheapest airline from Denver to Harlingen, Texas.Alternate airlines to your destination round-trip include Southwest and American Airlines. Delta is currently priced 34% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Denver to Harlingen, Texas one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $185. Users have also found prices from $270 and $350 on Southwest and United Airlines, respectively.

  • Can I find deals for flights from Denver to Harlingen that include hotel bookings?

    Yes. In addition to deals on Denver to Harlingen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Harlingen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Harlingen.

  • Can I find deals for business class flights from Denver to Harlingen?

    Yes. Cheapflights offers flight deals from Denver to Harlingen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Harlingen, Texas?

    Currently, April is the cheapest month in which you can book a flight from Denver to Harlingen, Texas (average of $267). Flying from Denver to Harlingen, Texas in July is currently the most expensive (average of $420). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 3 airlines flying from Denver to Harlingen

Discover the top 3 airlines that operate flights from Denver to Harlingen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$196Average$352FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$215Average$298FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$266Average$373FlexibilityNo cancel feeOn-time69%
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