$459 Find Cheap Flights from Athens to Colorado - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Athens to Colorado departing on 10/21. 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, 0 bags

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Flight Deals

Book Cheap Athens 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 Athens 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 Athens to Colorado

Tue, Dec 1 - Wed, Jan 13
Multiple Airlines Logo
1:55 pm - 8:23 am
ATH
-
DEN
51h 28m
2 stops
Multiple Airlines Logo
5:25 pm - 9:20 pm
DEN
-
ATH
18h 55m
1 stop
$960Multiple Airlines
Tue, Dec 1 - Wed, Jan 13
Scandinavian Airlines Logo
2:10 pm - 11:24 pm
ATH
-
DEN
42h 14m
2 stops
Scandinavian Airlines Logo
1:35 pm - 3:45 pm
DEN
-
ATH
17h 10m
2 stops
$992Scandinavian Airlines
Thu, Jan 14 - Tue, Jan 19
Multiple Airlines Logo
9:45 pm - 3:10 pm
ATH
-
DEN
26h 25m
2 stops
Multiple Airlines Logo
5:01 pm - 1:20 am
DEN
-
ATH
23h 19m
1 stop
$1,004Multiple Airlines
Fri, Aug 21 - Sat, Sep 5
Iberia Logo
2:00 pm - 10:15 pm
ATH
-
DEN
17h 15m
1 stop
Iberia Logo
6:56 am - 11:00 am
DEN
-
ATH
19h 04m
1 stop
$1,006Iberia
Fri, Aug 21 - Sat, Sep 5
Iberia Logo
2:00 pm - 10:15 pm
ATH
-
DEN
17h 15m
1 stop
Iberia Logo
6:56 am - 11:00 am
DEN
-
ATH
19h 04m
1 stop
$1,007Iberia
Thu, Jan 14 - Tue, Jan 19
Multiple Airlines Logo
9:45 pm - 3:10 pm
ATH
-
DEN
26h 25m
2 stops
Multiple Airlines Logo
3:17 pm - 7:30 pm
DEN
-
ATH
19h 13m
2 stops
$1,008Multiple Airlines
Fri, Aug 21 - Sat, Sep 5
Iberia Logo
2:00 pm - 10:15 pm
ATH
-
DEN
17h 15m
1 stop
Iberia Logo
6:56 am - 11:00 am
DEN
-
ATH
19h 04m
1 stop
$1,020Iberia
Tue, Sep 1 - Wed, Sep 30
Iberia Logo
2:00 pm - 10:15 pm
ATH
-
DEN
17h 15m
1 stop
Iberia Logo
7:16 am - 8:55 am
DEN
-
ATH
16h 39m
1 stop
$1,026Iberia
Fri, Aug 21 - Sat, Sep 5
United Airlines Logo
6:45 am - 1:30 pm
ATH
-
DEN
15h 45m
1 stop
United Airlines Logo
1:58 pm - 10:00 am
DEN
-
ATH
35h 02m
1 stop
$1,053United Airlines
Tue, Sep 15 - Wed, Oct 7
United Airlines Logo
6:00 am - 1:45 pm
ATH
-
DEN
16h 45m
1 stop
United Airlines Logo
6:00 am - 10:00 am
DEN
-
ATH
19h 00m
2 stops
$1,058United Airlines
Booking Insights

KAYAK's insights & trends for Athens to Colorado flights

Get data-powered insights and trends into flights from Athens 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 Athens to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Athens 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 Athens to Colorado is January, when tickets cost $0 (return) on average. On the other hand, the most expensive months are May and March, when the average cost of round-trip tickets is $1,180 and $1,140 respectively.

Good to know

Low season

November

Cheapest flight

$459
Best time to beat the crowds with an average 34% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Athens to Denver

FAQs - booking Colorado flights

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Athens 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 Athens 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 Athens 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 Athens 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 Athens 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 airline flying from Athens to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Athens 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 Athens 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.
7.4
United AirlinesOverall score based on 10061 reviews
8.1Crew
7.3Comfort
6.6Food
7.1Entertainment
7.7Boarding
Airline reviews

Entertainment center did not work and no electric available at seat for 11 hour flight. Didn’t have access to overhead light or call button. Food was tasteless and had a high salt (27 %) of recommended daily salt intake

4.0 OkayAnonymous, Jul 2026
ATH - IAD
Read more United Airlines reviews

Entertainment center did not work and no electric available at seat for 11 hour flight. Didn’t have access to overhead light or call button. Food was tasteless and had a high salt (27 %) of recommended daily salt intake

Flight was late, the only reason I almost missed my flight was that my connection was also late.

The flight was delayed an hour and a half while you tried to fix the plane so I missed my connecting flight in Chicago. In Chicago, it took an hour to get the luggage. Then the conveyor belt was broken where I have to transfer my flight from an international flight to the continuing flight so I had to carry a large suitcase through the airport. The elevators were broken in the airport. I paid people to carry the luggage for me up the escalators in two different areas. The person who helped me get the new flight was outstanding. The temperature in the airport in Chicago was horrible. We were all sweating. It was the day from hell. That was after two hours in a security line in Athens. I have TSA pre-checked and global entry and I still waited. Two hours in a security line. Something has got to be done to stream line this service. After I’ve been through all of that in Athens, why do I have to go through it again in Chicago. It was the worst travel experience I have had in a long time. Your bathrooms have gotten so small that you can hardly get your butt on the toilet. You’ve taken the airspace out of the inside of the top of the toilet. It really makes for a miserable experience. Also on a 4 1/2 hour flight from Chicago to Los Angeles. The only thing we’re given is a bag of pretzels. REALLY!!

Flight attendants were great. Food mediocre. Bamboo utensils not Great especially if you have to cut something. Seating a bit crowded.

We boarded late. The crew at the airport was dismissive. The seat cushion on the plane was uncomfortable.

Very disappointed with food service. They ran out of entree selections- so for the last 10 rows only option was lentil stew. Not a fan. Then the morning service (pizza twist) was lukewarm at best- I exited my 12 hour flight having eaten a roll and dessert. They knew it was a full flight.

We had a very long diversion and our food voucher didn’t work because the restaurants were closed

Flight was actually on Air Canada. The flight itself was fine. Nothing special. Food was pretty pathetic except for cookies. They offered plenty of food and drinks but just wasn't very good. Even for airline food.

United is my favorite and I always try to fly United. I feel like this crew didn’t mesh well together.

Flight was late due to mechanical, had to spend night in hotel. Experience disembarking plane was poor, United did little for passengers except what they were required to do by law.

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

Information on your arrival and departure airports