$401 Find Cheap Flights from Lisbon to Colorado

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Lisbon to Colorado departing on 10/7. 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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Lisbon to Colorado, 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 Lisbon to Colorado, as well as popular online travel agencies
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Cheap Flights from Lisbon to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denver1 stop$580
Denver
Denver1 stop$580

Book Cheap Lisbon to Colorado Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Lisbon to Colorado 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 Lisbon to Colorado

Fri, Sep 5 - Fri, Sep 19
Aer Lingus Logo
10:15 pm - 5:59 pmLIS-DEN
26h 44m1 stop
Aer Lingus Logo
7:55 pm - 9:35 pmDEN-LIS
18h 40m1 stop
$580Aer Lingus
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Fri, Sep 12 - Fri, Sep 19
 Logo
9:25 am - 5:59 pmLIS-DEN
15h 34m1 stop
 Logo
7:55 pm - 5:00 pmDEN-LIS
14h 05m1 stop
Sat, Sep 13 - Sat, Sep 20
KLM Logo
8:55 am - 7:54 pmLIS-DEN
17h 59m2 stops
KLM Logo
11:20 am - 10:45 amDEN-LIS
16h 25m1 stop
$774KLM
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Wed, Aug 27 - Fri, Sep 5
Delta Logo
5:00 am - 3:28 pmLIS-DEN
17h 28m2 stops
Delta Logo
12:11 pm - 2:50 pmDEN-LIS
19h 39m2 stops
$776Delta
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Tue, Aug 26 - Thu, Sep 4
Delta Logo
5:40 am - 3:30 pmLIS-DEN
16h 50m1 stop
Delta Logo
12:11 pm - 2:50 pmDEN-LIS
19h 39m2 stops
$777Delta
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Fri, Sep 5 - Fri, Sep 19
British Airways Logo
11:05 am - 9:50 pmLIS-DEN
17h 45m1 stop
British Airways Logo
6:35 pm - 11:10 pmDEN-LIS
21h 35m1 stop
$835British Airways
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Mon, Aug 25 - Sun, Sep 7
British Airways Logo
11:05 am - 9:55 pmLIS-DEN
17h 50m1 stop
British Airways Logo
2:17 pm - 11:05 pmDEN-LIS
25h 48m2 stops
$837British Airways
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Wed, Oct 1 - Thu, Oct 16
KLM Logo
5:00 am - 3:44 pmLIS-DEN
17h 44m2 stops
KLM Logo
12:42 pm - 8:00 amDEN-LIS
12h 18m1 stop
$843KLM
Find Deal
Thu, Aug 28 - Sun, Sep 7
United Airlines Logo
5:05 am - 3:35 pmLIS-DEN
17h 30m1 stop
United Airlines Logo
9:40 am - 9:20 amDEN-LIS
16h 40m1 stop
$863United Airlines
Find Deal
Mon, Aug 25 - Sat, Sep 6
United Airlines Logo
7:30 am - 3:35 pmLIS-DEN
15h 05m1 stop
United Airlines Logo
8:20 pm - 9:50 pmDEN-LIS
18h 30m1 stop
$868United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Lisbon to Colorado flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Lisbon to Colorado, 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 Lisbon to Colorado is October, when tickets cost $779 (return) on average. On the other hand, the most expensive months are July and June, when the average cost of round-trip tickets is $1,121 and $1,063 respectively.

What’s the cheapest day of the week to fly from Lisbon to Colorado?

The average price of all round-trip flights from Lisbon to Colorado clicked on KAYAK for each day over the last 12 months.

When flying from Lisbon to Colorado, you should consider leaving on a Wednesday and avoid Fridays if you are looking for the best rates. For your return to Lisbon, you’ll find the best rates on Wednesdays and the most expensive ones on Saturdays.


Good to know

Low seasonJune
Cheapest flight$401
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from Lisbon to Denver

FAQs - booking Colorado flights

  • How does KAYAK find such low prices on flights from Lisbon 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 Lisbon to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Lisbon 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 Lisbon 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 Lisbon 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 Lisbon 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 Lisbon to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Colorado?

    The cheapest time of day to fly to Colorado is generally in the morning, when round-trip flights cost $951 on average. The most expensive time of day to fly to Colorado is generally in the morning, which is peak travel time and where the average cost of a ticket is $951.

Reviews of the top 3 airlines serving from Lisbon to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Lisbon to Colorado. 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 Lisbon 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.
8.0
DeltaOverall score based on 7980 reviews
7.9Comfort
8.2Boarding
7.3Food
8.5Crew
7.9Entertainment
Airline reviews

Check in process was terrible. Lady at counter didn’t know what she was doing

4.0 OkayAnonymous, Jul 2025ICN - SEA
Read more Delta reviews

Check in process was terrible. Lady at counter didn’t know what she was doing

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

The crew was amazing; Von, Vera and Guadalupe were very friendly and attentive throughout the entire flight. They were friendly and welcoming to everyone. A solid and dedicated team for sure!

Terrible. I was bumped off of my original flight and spent the next six days fighting to get back on it. I lost hours of my vacation trying to get this situation corrected.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Excellent everywhere but Philly, the most rotten airport in the world.

Check in was not the greatest as had to talk to an agent to clarify things and then he transferred us to another agent who had difficulty processing my credit card as there was a system glitch and not a card error.

Was delayed on first leg and missed connection. They would not let me board although I arrived at the gate 5 min before take off. I was delayed 24hrs

I was put into business class. Wow! My flight attendant was great! The food amazing’

The gate at London Gatwick had confusing signs for the different zones and the staff seemed harried because people didn't know when it was their turn to come to the desk. Plus, with there were too many carry-on bag travelers, myself included. The charge scheme for checking bags is frustrating. If you travel light, you want the freedom to leave as soon as you deplane. When you are forced to gate-check your bag simply because the flight is fully booked, you lose whatever time you'd hoped to save because you're still stuck waiting for your bag to come off the conveyor belt.

Safe arrival. Improvement on Time efficiency Effective Communication will be great.

Not so good with their baggage handling as they damaged one of my check in luggage

A good flight back to Tampa and thankfully although we had a 90 minute delay because of thunder storms from Charlotte to bottom iof Florida, it was a prudent to avoid these for a comfortable flight as opposed to being tossed around with turbulence.

All went well on the flight, not happy of course with having to pay for a seat and in hold luggage of £50

They removed our booking without telling us. Cost us thousands to book last minute

Everything you need to know for your flight from Lisbon to Colorado

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