DEN - ATH

$277 Find Cheap Flights from Denver to Athens

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Athens departing on 9/20. 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 Denver to Athens.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Athens.
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Flights Deals

Cheap Flights from Denver to Athens (DEN-ATH)

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

Wed, Nov 12 - Wed, Nov 26
 Logo
11:15 am - 11:30 amDEN-ATH
15h 15m1 stop
 Logo
6:15 am - 4:00 pmATH-DEN
18h 45m1 stop
Tue, Nov 11 - Tue, Nov 25
 Logo
11:25 am - 11:30 amDEN-ATH
15h 05m1 stop
 Logo
6:25 am - 4:00 pmATH-DEN
18h 35m1 stop
Tue, Oct 14 - Thu, Nov 6
United Airlines Logo
9:40 am - 10:05 amDEN-ATH
15h 25m1 stop
United Airlines Logo
6:25 am - 4:00 pmATH-DEN
18h 35m1 stop
$588United Airlines
Find Deal
Wed, Oct 15 - Wed, Nov 5
Lufthansa Logo
4:15 pm - 11:00 pmDEN-ATH
21h 45m1 stop
Lufthansa Logo
6:35 am - 2:35 pmATH-DEN
17h 00m1 stop
$592Lufthansa
Find Deal
Mon, Oct 13 - Thu, Nov 6
United Airlines Logo
6:00 am - 8:10 amDEN-ATH
17h 10m1 stop
United Airlines Logo
6:25 am - 4:00 pmATH-DEN
18h 35m1 stop
$593United Airlines
Find Deal
Wed, Nov 12 - Fri, Nov 28
Air Canada Logo
11:15 am - 11:30 amDEN-ATH
15h 15m1 stop
Air Canada Logo
2:05 pm - 4:38 pmATH-DEN
35h 33m2 stops
$595Air Canada
Find Deal
Mon, Oct 13 - Thu, Nov 6
Air Canada Logo
7:45 am - 10:05 amDEN-ATH
17h 20m2 stops
Air Canada Logo
12:50 pm - 8:05 pmATH-DEN
40h 15m2 stops
$606Air Canada
Find Deal
Wed, Oct 15 - Mon, Nov 3
Lufthansa Logo
4:15 pm - 11:00 pmDEN-ATH
21h 45m1 stop
Lufthansa Logo
5:30 pm - 4:00 pmATH-DEN
31h 30m1 stop
$630Lufthansa
Find Deal
Sun, Aug 24 - Wed, Sep 3
Turkish Airlines Logo
7:50 pm - 8:30 pmDEN-ATH
15h 40m1 stop
Turkish Airlines Logo
3:55 am - 5:55 pmATH-DEN
23h 00m1 stop
$635Turkish Airlines
Find Deal
Tue, Sep 23 - Thu, Oct 9
Turkish Airlines Logo
7:50 pm - 8:55 amDEN-ATH
28h 05m1 stop
Turkish Airlines Logo
3:55 am - 5:55 pmATH-DEN
23h 00m1 stop
$641Turkish Airlines
Find Deal
Useful Info

KAYAK's insights & trends for Denver to Athens flights

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

Find cheap flights to Athens
Find cheap flights to Athens

Planning a trip from Denver to Athens? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from Denver to Athens?

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

If you are looking for a flight deal from Denver to Athens, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Athens, Wednesday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Denver to Athens?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Athens, 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 Denver to Athens is February, where tickets cost $616 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,565 and $1,462 respectively.

How far in advance should I book a flight from Denver to Athens?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Athens, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Athens, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonJanuary
High seasonSeptember
Cheapest flight$277
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Denver to Athens

When to book flights from Denver to Athens

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

  • Is there an onsite hotel at Denver International Airport?

    The Westin Denver International Airport is the only hotel inside Denver International Airport. When you have a flight from this airport, this is the best place to stay the night before as it puts you right inside the airport. As a result, you won’t have to deal with a stressful commute to the airport and don’t have to worry about missing your flight because you're guaranteed to arrive on time.

  • Is public transport available from Athens International Airport?

    Athens International Airport is connected to the city through a robust public transport system that includes both buses and trains. The bus is ideal if you’re heading towards the Athens Center and surrounding destinations such as Syntagma Square. The bus can be boarded from the airport terminal where you will take the X95. If you would rather use the metro, they are available every 30min from the airport terminal and run from 6 am to 11 pm.

  • Can I find long-term parking at Denver International Airport?

    Denver International Airport has thousands of parking spaces for travelers looking to leave their cars at the airport for a long time. The Mt Elbert Lot, Economy Parking Lot, and Pikes Peak Lot all offer long-term parking at relatively affordable rates. The Mt Elbert Lot is located towards the south of the Main Terminal, while the other two are located to the east.

  • Do I need a visa to fly from Denver to Athens?

    Since Greece is part of the Schengen Agreement, you will not have to apply for a visa to be allowed entry into the country. As long as you don’t plan on staying for longer than 90 days, you will only be required to have a passport with validity extending at least six months and two blank pages for the entry and exit stamps.

  • What is the cheapest flight from Denver to Athens?

    In the last 3 days, the lowest price for a flight from Denver to Athens was $277 for a one-way ticket and $563 for a round-trip.

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

    Yes

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

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Athens?

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

  • What is the most popular layover when flying to Athens from Denver?

    Istanbul is the most popular layover city among KAYAK users traveling from Denver to Athens.

  • Which is the best airline for flights from Denver to Athens, Delta or SWISS?

    The two airlines most popular with KAYAK users for flights from Denver to Athens are Delta and SWISS. With an average price for the route of $1,156 and an overall rating of 8.0, Delta is the most popular choice. SWISS is also a great choice for the route, with an average price of $1,077 and an overall rating of 7.5.

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

    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 Denver to Athens.

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

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

    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 Athens with an airline and back to Denver with another airline. Booking your flights between Denver and ATH 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 Denver to Athens?

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

KAYAK’s top tips for finding a cheap flight from Denver to Athens

  • Denver International Airport (DEN) is a hub for Delta Air Lines. When flying out of this airport, consider booking with this airline since they offer more flight options to different destinations than any other airline.
  • Athens Airport (ATH) has two pet relief areas if you’re traveling with a pet or service animal. One is located close to the entrance of the main terminal, while the other can be found inside the terminal near Gate 51.
  • To enjoy the lounges at Denver International Airport, consider booking your flight with American Airlines, Delta, or United Airlines. They each have a world-class lounge at the airport, providing guests with complimentary snacks, drinks, Wi-Fi, and a comfortable place to seat as you wait to board your flight.
  • To make transactions easier in Athens, ensure you exchange a few US Dollars for the Euro. Denver International Airport has three World Wide Money Exchange shops. They can be found on the center cores of the A and B Gates as well as Level 5 of the Jeppesen Terminal.
  • Nursing moms will be happy to hear that Denver International Airport has three private nursing rooms where they can change and feed their infants. They have a variety of amenities, such as sinks, power outlets, changing tables, and comfortable seats, among others. These rooms can be found at the center of each concourse near the ladies’ restroom.

Top 5 airlines serving from Denver to Athens

 
See real verified KAYAK customer reviews for airlines flying from Denver to Athens. 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 Denver to Athens? 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 8801 reviews
7.7Boarding
6.6Food
7.3Comfort
7.0Entertainment
8.1Crew
Airline reviews

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

10.0 ExcellentAnonymous, Jun 2025DEN - BOS
Read more United Airlines reviews

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

The seat and leg room was not good. The food and beverage service was good.

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

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

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

No food service almost missed because of first flight delays

Bad experience; they are not good anymore. They charge too much for luggage seat are so uncomfortable, Flight delays which may miss your next flight, they don’t care if you miss the flight or not. Zero customer services for front desk representatives Istanbul's airport I’m not using this airline any more.

I’ve been traveling for 20 years. I tried Turkish airline for the first time horrible horrible service and it would be my last time even if I get offer for a free ticket, I will not accept it. They have races and the worst Flight attendant

It wasn't good. I didn’t understand. They changed 320 dollars for 2 luggage. My ticket was regular and I paid almost 1200.00 dollars. Why they did charge? I want my money back.. thanks Yılmaz polat

Very punctual, the onboard staff was friendly and correct, the flight was fortunately very calm, the toilets were clean, in short, an excellent experience Thanks

Ordered Vegan meal - it was ok, but not exceptional. Seat ok row 39 middle section aisle. Nearly full flight - crew was busy but they did the best they could. There was a USB A port at the seat. I listened to my own music and only looked at flight information. One nice thing was the connection information was made available in the screen.

Very nice and friendly crew. Boarding system can be improved.

The Etickets had been changed (Why?) without notice ; Hence, that caused troubles when checking in. Not until I contacted my ticket agent and was given correct Etickets could I then check in.

Cleanliness of seats, trays, storage pockets need more attention, but everything else was good.

A great airline, no complaints at all. My experience with Cheap Tickets was very disappointing however. Two hours after purchasing the flight they called to tell me that the ticket price had gone up. I’ve never heard of such a thing. That is called false advertising; I will never use this ticketing service again and will warn all friends to never use it.

One of the worst check in process at the DIA as well as the boarding counter Changed seat at the last minute and assigned middle seat while I paid for window seat. Requested many times but to no avail . horrible customer service and very poor process Requesting refund for seat that was changed last minute

Flight was delayed but the real issue is how long we sat after boarding. Space very limited for an overnight flight and seatbacks didn’t recline so it was almost impossible to sleep.

The staff made sure I was comfortable, moved me to a better seat with more leg room

Easy boarding and comfortable seating were plusses. Enjoyed the experience and good service from the captain and crew. Many thanks...!

Somehow, my booking was under my preferred name instead of my legal name so they almost didn’t let me board the plane at LAX. This problem should have been notified to me when I was still in Toronto.

Great overall. Quick boarding, attentive staff - great experience in premium class.

When arriving over 2 hours early to check k in at Charlotte airport I was told I would have to check my carry on ? Apparently the flight was full and may not be room. I was not given a choice and the agent was quite unpleasant about it. I am a senior amd was not comfortable me having to worry about my bag being lost vut it didn’t seem to bother him. There were lots and lots of people of all ages in line when we boarded with carryons and most larger than mine .the rest of my journey was pleasant vut this was totally unacceptable.

Good flight, slightly cramped as the seats are very close together

The layover was 6 PLUS hours and we were only given a $15.00 voucher. We missed our first activity in Quebec due to the delay.

Miserable staff as it was a late/delayed flight and crew wasn’t in the best spirits. Completely understood as neither was most of the passengers. Still unacceptable l.

Or the greatest and it ended up picking us up from Chicago to Toronto not sure who was tesponsible for the 4 hr delay. United should have been properly prepared for a scheduled flight from Austin to Chicago and they were not.

Flight was 1.5 hours late to depart so changed flights to Swiss Air.

The United Airlines crew that operated this flight was subpar. They didn’t

Very small and uncomfortable seats, Hard to hear entertainment system sound. Horrible food. Staff doesn't care much about the passengers. 2nd time they didn't give me my vegetarian meal. They asked me regular food with meat. The airline and staff was from United airlines.

Checkin took along timen only.few angents available at.checkin desk. Customer support over phone no existence

At baggage claim, I was given the wrong printed ticket. The ticket belonged to another passenger for a different flight — to Zurich instead of Frankfurt (layover). I was even allowed to pass security, and when I asked the Lufthansa employee if I was on the correct flight, and why it was changed. The employee said everything was correct and I should board. When I got on the plane, there was someone in my seat, and the crew on the plane finally realized that I was on the wrong plane. When I got off the plane, nobody was willing to help, and the security refused to provide my original printed ticket. That was until I showed them that I took a photo of the ticket; once they realized I had photographic evidence, they were suddenly ready to help me. The Lufthansa employee began communicating with other airlines and found a flight that would take me to my destination via Polish Airlines. I was required to once again go through security, re-check my bag, and once again pay for my checked bag and weight overage fees. This experience was incredibly stressful and very frustrating, as you can imagine. A Lufthansa employee told me I would be eligible for a refund. Please tell me what steps I need to take in order to make that happen. Thank you!

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

This was the second time on BA, food terrible, bathrooms gross,( granted, that was mostly due to the disgusting children urinating all over it)boarding was late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress. Seats were painful, that's what you get for traveling like a poor in economy, right BA? Should have been able to afford business or first class if you want to actually be able to walk upright without back pain after a trip.

This was the second time on BA, food terrible, bathrooms gross, boarding late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress.

The flight was delayed twice and because of that, we missed our connecting flight. British Airways then attempted to put us on the last flight to Milan from London which would have kept us in the airport for 12 hours. We had to speak to several levels of bureaucracy until BA management let us fly on a flight that only kept us in the airport for two hours. If there was an earlier flight, why weren’t we put on that flight from the start? Unacceptable behavior from what was once my favorite carrier.

The payment system was not working so was unable to connect wifi the entire flight

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

I ordered short ribs for main course. It tasted sweet, really sweet. Horrible.

Our luggage didn’t arrive with us, that puts a damper on the whole trip.

The screen didn’t work and I didn’t get the seat upgrade I paid $300 for. They were no help with that,

Paid $180 for seat selection, and selection essnt honored. Have to call for a refund.

Was 3 hrs delayed and my poor friend I met in Barcelona was waiting at airport for 3 hrs. Dallas airport was awful

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

Information on your arrival and departure airports

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