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HRL - DEN

Find cheap flights from Harlingen to Denver from $208

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Harlingen to Denver departing on 6/5. 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
0 bags
Fri 6/7
Fri 6/14

Search hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Harlingen to Denver, 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 Harlingen to Denver, as well as popular online travel agencies
In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from Harlingen to Denver (HRL-DEN)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Harlingen to Denver 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 and deals for you by selecting your travel dates.
Choose your dates
12:06 pm - 5:52 pmHRL-DEN
6h 46m1 stop
8:37 am - 3:55 pmDEN-HRL
6h 18m1 stop
$208American Airlines
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Wed, Jun 5 - Wed, Jun 12
8:11 pm - 11:59 pmHRL-DEN
4h 48m1 stop
12:48 pm - 7:41 pmDEN-HRL
5h 53m1 stop
$283American Airlines
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Thu, Jun 6 - Sun, Jun 9
8:11 pm - 11:59 pmHRL-DEN
4h 48m1 stop
6:42 pm - 11:58 pmDEN-HRL
4h 16m1 stop
$337American Airlines
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Mon, Jun 10 - Mon, Jun 17
8:11 pm - 11:59 pmHRL-DEN
4h 48m1 stop
6:08 am - 11:36 amDEN-HRL
4h 28m1 stop
$338American Airlines
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Fri, Jun 7 - Sun, Jun 9
5:05 am - 2:19 pmHRL-DEN
10h 14m2 stops
7:45 am - 3:57 pmDEN-HRL
7h 12m1 stop
$440United Airlines
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Wed, Jun 5 - Wed, Jun 12
5:05 am - 2:19 pmHRL-DEN
10h 14m2 stops
10:05 am - 10:52 pmDEN-HRL
11h 47m2 stops
$487United Airlines
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Wed, Jun 5 - Wed, Jun 12
5:05 am - 2:19 pmHRL-DEN
10h 14m2 stops
5:02 am - 10:55 amDEN-HRL
4h 53m1 stop
$561United Airlines
Find Deal
Mon, Jun 10 - Mon, Jun 17
5:05 am - 2:19 pmHRL-DEN
10h 14m2 stops
5:02 am - 10:55 amDEN-HRL
4h 53m1 stop
$576United Airlines
Find Deal
Thu, Jun 6 - Sun, Jun 9
7:25 am - 11:38 pmHRL-DEN
17h 13m1 stop
7:45 am - 8:56 pmDEN-HRL
12h 11m2 stops
$587United Airlines
Find Deal
Fri, Jun 7 - Sun, Jun 9
7:25 am - 4:00 pmHRL-DEN
9h 35m2 stops
9:57 am - 8:56 pmDEN-HRL
9h 59m2 stops
$1,384United Airlines
Find Deal
Thu, Jun 6 - Sun, Jun 9

Flights from Harlingen to Denver - Travel Insights & Trends

Get data-powered insights and trends into flights from Harlingen to Denver 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 Harlingen to Denver?

The average price of all flights from Harlingen, Texas to Denver clicked on KAYAK for each day over the last 12 months.
For Harlingen to Denver, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Denver back to Harlingen, the best deals are generally found on Wednesday, with Monday being the most expensive.

What is the cheapest month to fly from Harlingen, Texas to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Harlingen, Texas to Denver, 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 Harlingen, Texas to Denver is February, where tickets cost $227 on average. On the other hand, the most expensive months are June and November, where the average cost of tickets is $554 and $508 respectively.

How far in advance should I book a flight from Harlingen, Texas to Denver?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Harlingen, Texas to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Harlingen, Texas to Denver, you should book around 3 days before departure. For the absolute cheapest price, our data suggests you should book 54 days before departure.

Which cabin class options are there for flights between Harlingen, Texas and Denver?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 2 cabin class options for the route. These are Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Good to know

Low season

April

High season

March

Cheapest flight

$208
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly and prices are also 33% lower on average.
Flight from Harlingen to Denver

When to book flights from Harlingen to Denver

Are your dates flexible? Find out the best times to travel from Harlingen to Denver 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 flights from Harlingen to Denver

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

    In the last 3 days, the lowest price for a flight from Harlingen, Texas to Denver was $214 for a one-way ticket and $208 for a round-trip.

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

    No

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

    When flying out of Harlingen you will be using Harlingen Valley Intl. You will be landing at Denver, also known as Denver Intl.

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

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Harlingen to Denver flight route.

  • Which airline alliances offer flights from Harlingen to Denver?

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

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

    The two airlines most popular with KAYAK users for flights from Harlingen to Denver are United Airlines and American Airlines. With an average price for the route of $462 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $363 and an overall rating of 7.3.

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

    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 Harlingen to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Harlingen 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 Harlingen to Denver?

    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 Denver with an airline and back to Harlingen with another airline. Booking your flights between Harlingen and DEN 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 Harlingen to Denver?

    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 Denver from Harlingen up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from HRL to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $699 or less one-way.

Top airlines flying from Harlingen to Denver

 
See real verified KAYAK customer reviews for airlines flying from Harlingen to Denver. 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 Harlingen to Denver? 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.
7.4
United AirlinesOverall score based on 11043 reviews
8.1Crew
6.7Food
7.1Entertainment
7.7Boarding
7.2Comfort
Airline reviews

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

2.0 Mediocretimothy, May 2024SBA - DEN
Read more about United Airlines reviews

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Positive: Entertainment via phone on the short was great and my first time. Good food and wine and head phones for free. Negative: Seat hardly reclined on the long flight. Breakfast was an egg with a bun. No egg choices and rather have something sweet like bun/jam and Youghurt.

They did get us booked on a later flight, but it made us miss our connecting flight. So, we had to stay and another state overnight with no luggage or clothes. Because they kept our luggage at airport for next flight on the next day.

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Crew is way too many times on the intercom re explaining the same thing

Amazing comfortable chairs great snacks super friendly staff pilots did excellent job. Smooth sailing all the way. Definitely be flying United more.

We waited too long to get water while the plane was on the Tarmac awaiting de-icing.

The plane was delayed coming in and on the tarmac. I was coming from another flight so it made for a very long day. The stewardess kept trying to slam the overhead bins closed and I was worried that she had damaged my new luggage. They ran out of snacks and lccdsddd me a hummus box which was nice. It took them a very long time to pick up the garbage so I could not go to the washroom and had little time. To prepare for disbarment. The TV system was hard to control from the armrest and picture wasn’t clear. The crew did apologize several times for the lateness. It took the Denver airport an unusually long time to de-ice the plane.

By in large it was a good experience. The flight crew was great and that's the most important to me. Boarding was fine.

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Flight delayed over an over all day until it cancelled at 1:30am. Would not repeatedly delay that late. Offer hotel rooms and rebook early. Very difficult for families with small children

Missed the flight because of them and up geting a rental car

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

I arrived to the airport 2 hours before my American Airlines flight was scheduled to take off. I have TSA pre-check. The airport was crazy packed when I arrived. After momentarily standing in the pre-check line, the TSA agent said that I am not pre-check. Of course I said that I am because I entered my KTN number on all my traveling sites and programs. I had to get out of line and go back to the AA counter to discover that American Airlines did not add my KTN to my boarding pass. I had to call TSA to find out my number, then have AA enter it onto my boarding pass. The emblem would not load onto my boarding pass. By this time, I decided to use my Clear in order to get through TSA but the line was ridiculous long. By the time I made through TSA, I missed my 11:08am flight and was re-booked for the 5:30pm. This is after the AA employee told me I should have gotten to the airport early. AA use to be a dependable airline not I use them only if I have too.

Flight from SBP to DFW 1. They rerouted us through PHX 2. Delayed flight out of SBP for 3 hrs so we missed our connection Downgrade on rerouted flight. Back of the plane, center seats, didn't sit together 4. Return flight out of DFW same exact thing. Delayed, missed connection, Downgrade + they lost our luggage! A complete mess.

Do not eat the bagel! Otherwise, good albeit late, breakfast in first. Boarding downgrade only because flight was delayed due to plane change due to undisclosed problem with original aircraft. I did not use entertainment.

Because I can’t stand very long in one place, I was allowed to reword.

Was as expected. Good leg room on planes - much appreciated.

Book cheap flights from Harlingen to Denver

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Harlingen to Denver found on KAYAK in the last 72 hours.
5/14Tue
1 stopUnited Airlines
7h 24mHRL-DEN
$214
5/14Tue
2 stopsUnited Airlines
14h 17mHRL-DEN
$359

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Harlingen - Denver Flights

Departure:

Harlingen (undefined)United States

Destination:

Denver (DEN)United States

Return flight deals:

Denver - Harlingen

Cabin classes:

$240

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