$150 Find Cheap Flights from Harlingen to Colorado - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Harlingen to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
Denver
Denver1 stop$319
Denver
Denver1 stop$319
Booking Insights

KAYAK's insights & trends for Harlingen to Colorado flights

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

How much is a round-trip flight from Harlingen to Colorado?

Flight prices are typical for this route right now.

Flights to Colorado from Harlingen usually cost between $281 and $418 in November.
The lowest price found in the past 5 days was $319 on Southwest (Nov 26-Dec 1).

What is the cheapest Harlingen to Colorado flight route?

The cheapest ticket to Colorado from Harlingen found in the last 5 days was to Denver, at $363 round-trip. The most popular route is from Harlingen (HRL) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 5 days was $363.

What is the cheapest month to fly from Harlingen to Colorado?

The cheapest month for flights from Harlingen to Colorado is August, when tickets cost $268 (return) on average. On the other hand, the most expensive months are September and October, when the average cost of round-trip tickets is $580 and $442 respectively.

Good to know

Low season

September

Cheapest flight

$150
Best time to beat the crowds but there is an average 51% increase in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Harlingen to Denver

FAQs - booking Colorado flights

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

    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 Colorado.

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

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

    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 from Harlingen to Colorado with an airline and back with another airline.

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

    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 from Harlingen to Colorado 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 Harlingen to Colorado

 
Need help choosing which airline to fly with from Harlingen to Colorado? 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.
7.9
SouthwestOverall score based on 4217 reviews
8.1Boarding
7.0Food
8.0Comfort
8.6Crew
7.4Entertainment
Airline reviews

Flight was delayed again. I fly out every other weekend and lately the flight is delayed 3 out of five times 🤷🏻‍♀️

6.0 GoodDelores, Oct 2026
Read more Southwest reviews

Flight was delayed again. I fly out every other weekend and lately the flight is delayed 3 out of five times 🤷🏻‍♀️

Southwest’s point to point system caused a 2 hour delay due to the crew being late from their inbound flight. Also, the WiFi and entertainment didn’t work on the plane.

The Southwest airline was ok. A big thank you to Kayak team (David), who worked with me on Sunday afternoon to rebook my travel from Burbank, CA, to CVG. My original flight on Sunday was delayed, so I had to cancel Sunday flight and rebook my travel to Monday. Could not have done it without help from David from Kayak team. Ante Soda GE Aerospace

Flight time kept changing and so did the gate. It was very frustrating

Friendly crew kept coming by to make sure all was ok, provide additional refreshments, etc.

Flight was delayed by 2 hours, meaning that a flight to Dwnver which should have arrived at 11pm came into the airport at 1 am. Made for a very long day.

Crew was rude, flight was late, wifi didn't work, no food, basically nothing about this flight was good.

Flight was constantly delayed with significant changes in time, it was supposed to get to Colorado Springs at 8:30 PM but it got there after midnight.

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Lost my bags with all my ski gear and only gave me $500 to get new gear. They don't even know where my bags are. I was stuck in Denver airport from 10am yesterday until 12pm today and then stuck in Hayden airport for 3 hours waiting to find out where my bags are.

I need to note that this flight experience was generally fine but the boarding situation was absolutely a mess and there wasn’t any actual priority boarding. I rated the experience poorly because I’m am genuinely so frustrated with the crew on United taking the baggage space in first class. This flight it didn’t happen, but the last few flights (when I ironically don’t get an opportunity to provide feedback) have been spoiled because upon entering the first class cabin as one of the first few seated passengers, the overhead bins are full and ‘crew’’ tags are on the bags of those taking space. I don’t intend to infer some sort of a class or caste system but it’s absolutely ridiculous that the crew takes the overhead storage above and beyond their most loyal and lucrative customers. They should not even have economy space IMO. And I’ve gotten grief when I’ve noted to the crew the ridiculousness of the notion that the crew (who are the last off the plane) should have priority over flyers who pay. I hope you find a way to convey this message to United because it’s happening with increasing frequency and I intend to find a way to expose the specific crew members who are doing this on a flight by flight basis. (And I have a day job)

Seats needs to be wirer and food is very poor

We flew business fares. Was amazing. However, the check in didn't offer business fares preboarding which is less hectic. 8/10 due to this. Staff compared to Canadian carriers go above and beyond. Would gladly fly United again.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

Food choices were very limited. Taste of the dishes was average.

The entertainment would not work. The comfort of the seats leaves something to be desired, pretty uncomfortable.

When I got our tickets, my husband and I were easily able to get seats together (including a window seat). When we checked in at the airport all the seats were reset and we had to pick new ones, so we couldn’t sit together because there were only middle seats! Ugh that’s the worst. We were back so far we had to check our carry ons which was annoying because I bring an expensive camera that I don’t/cant check so I had to reorganize my items. Once we were seated on the plane we had to wait an hour to take off and they said there was some weather/air traffic in Denver but it was unclear. The lady I sat next to complained that our seats didn’t go back and we both got free complimentary snack boxes which were quite good. I wasn’t going to say anything about the seats, they were the typical uncomfortable kind. It would have been fine if the 2 hr flight hadn’t turned into 3 hrs. Not the best flight but also not the worst.

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

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

Upgrade planes to have larger overhead bins, especially on this popular route and first class.

Flight was good- arrived early ! But ticketing with Underpricer and Kayak was poor at best- unnessacarily difficult due to how the ticket were issued

The boarding and flight announcements need to be honest and accurate. These were not. While flight delays cannot be avoided, please. be honest with the passengers in informing us about the timing of the delays. Deceptive delay times is not good business. Deceptive and/or grossly inaccurate boarding times are not good business either.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

Flight was delayed leaving Dallas. Arrived about 2 hours later than scheduled.

We were delayed for a “couple of maintenance issues.” They were resolved rather quickly but a computer glitch caused someone in the airport to have to bring a physical copy of the paperwork so we could leave. I don’t know where they had to drive from to get to our plane but it took forever & we were 1 1/2 hrs late in leaving. The flight itself was fine.

Because the plane was 90 degrees F, they would not let us board. I wish they had, because it meant we were delayed. It's Texas, of course it's hot. We would have survived.

Our bags took a long time to get unloaded once we landed.

I don’t think I should have to pay for extra legroom because I’m a tall person I had to get the extra legroom for comfort that shouldn’t be the case. I should be penalized by the airlines for being a tall person..

Flight was late because our pilots were late. Also the air vents above our seat didn't work.

More options for your flight from Harlingen to Colorado

Complete your trip to Colorado with a hotel stay or car rental