HEL - DEN

$578 Find Cheap Flights from Helsinki to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helsinki to Denver departing on 8/12. 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

KAYAK searches 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 Helsinki 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 Helsinki to Denver, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Helsinki to Denver (HEL-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helsinki 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Helsinki to Denver

Thu, Jul 10 - Wed, Jul 23
Lufthansa Logo
6:10 am - 3:35 pmHEL-DEN
18h 25m1 stop
Lufthansa Logo
4:15 pm - 11:50 pmDEN-HEL
22h 35m1 stop
$783Lufthansa
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Sat, Jul 5 - Sat, Jul 19
Lufthansa Logo
6:05 am - 1:45 pmHEL-DEN
16h 40m1 stop
Lufthansa Logo
4:15 pm - 11:50 pmDEN-HEL
22h 35m1 stop
$800Lufthansa
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Wed, Jul 30 - Wed, Aug 6
United Airlines Logo
6:10 am - 7:38 pmHEL-DEN
22h 28m2 stops
United Airlines Logo
4:15 pm - 6:55 pmDEN-HEL
17h 40m1 stop
$824United Airlines
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Tue, Jul 29 - Wed, Nov 5
United Airlines Logo
1:35 pm - 8:58 amHEL-DEN
28h 23m2 stops
United Airlines Logo
4:20 pm - 6:40 pmDEN-HEL
17h 20m1 stop
$829United Airlines
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Thu, Jul 10 - Wed, Jul 23
United Airlines Logo
6:00 am - 1:45 pmHEL-DEN
16h 45m1 stop
United Airlines Logo
10:30 am - 6:55 pmDEN-HEL
23h 25m2 stops
$830United Airlines
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Sat, Jul 5 - Sat, Jul 19
 Logo
6:05 am - 1:45 pmHEL-DEN
16h 40m1 stop
 Logo
7:45 am - 6:55 pmDEN-HEL
26h 10m2 stops
Tue, Jul 22 - Sat, Jul 26
Icelandair Logo
3:00 pm - 12:30 pmHEL-DEN
30h 30m1 stop
Icelandair Logo
4:40 pm - 2:00 pmDEN-HEL
12h 20m1 stop
$942Icelandair
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Wed, Jul 23 - Sat, Jul 26
Icelandair Logo
3:00 pm - 6:55 pmHEL-DEN
12h 55m1 stop
Icelandair Logo
4:40 pm - 2:00 pmDEN-HEL
12h 20m1 stop
$956Icelandair
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Tue, Jul 22 - Sat, Jul 26
 Logo
5:35 am - 5:55 pmHEL-DEN
45h 20m2 stops
 Logo
7:50 pm - 11:40 amDEN-HEL
30h 50m1 stop
$1,017
Find Deal
Mon, Jun 30 - Fri, Jul 4
Turkish Airlines Logo
7:35 pm - 5:55 pmHEL-DEN
31h 20m1 stop
Turkish Airlines Logo
7:50 pm - 11:40 amDEN-HEL
30h 50m1 stop
$1,283Turkish Airlines
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KAYAK's insights & trends for Helsinki to Denver flights

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

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

For Helsinki to Denver, Friday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Denver back to Helsinki, the best deals are generally found on Tuesday, with Friday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Helsinki 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 Helsinki to Denver is February, where tickets cost $703 (return) on average. On the other hand, the most expensive months are July and March, where the average cost of round-trip tickets is $1,131 and $1,063 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Helsinki to Denver, 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 Helsinki to Denver, you should book around 9 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$578
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Helsinki to Denver

When to book flights from Helsinki to Denver

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

  • What is the cheapest flight from Helsinki to Denver?

    In the last 3 days, the lowest price for a flight from Helsinki to Denver was $578 for a one-way ticket and $783 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Helsinki and on arrival in Denver.

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

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

  • Which airline alliances offer flights from Helsinki to Denver?

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

  • Which is the best airline for flights from Helsinki to Denver, Icelandair or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Helsinki to Denver are Icelandair and Lufthansa. With an average price for the route of $927 and an overall rating of 7.0, Icelandair is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $1,063 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from Helsinki 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 Helsinki to Denver.

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

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

Top airlines flying from Helsinki to Denver

 
See real verified KAYAK customer reviews for airlines flying from Helsinki 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 Helsinki 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.
7.0
IcelandairOverall score based on 499 reviews
7.0Comfort
6.2Food
8.0Crew
7.0Entertainment
7.1Boarding
Airline reviews

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

4.0 OkaySamuel, Jun 2025BWI - KEF
Read more Icelandair reviews

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset. If there is option to use another company, I suggest to other people use them.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

I was very grateful for Lufthansa's role in organizing mobility support. The touchscreen on my seat was faulty: slow, stained (I couldn't get it clean), and glitchy. This made selecting movies extremely time consuming, and twice I had to start all over from the beginning.

Beautifully maintained airplane, good food, professional crew, top-notch communication. I highly recommend Lufthansa for intercontinental flights between the United States and Europe.

Lufthansa is my favorite airline and have flown oversea with them for the past 25 years: i always found them so professional and incredibly efficient from checking in to arrival. I also love their Munich or Frankfurt airports.

The United flight was excellent! The flight attendants were attentive and nice, and the food was very good! And the glasses are larger than on Lufthansa flights! I don’t want to have to ask for 15 glasses of water because their glasses are ridiculously small!

The food not that great. Did not like the fact that we could not purchase upgrade at the airport

We paid for business class, and my seat did not work at all. Each time I wanted to adjust the position, an attendant had to come to physically force the seat into its new position. They tried to fix it by fiddling with the electronics (military reset, for example), to no avail. Also, the food was just mediocre. We were at the end of a serving section, so they ran out of several choices. (This was on the flight from Los Angeles to Munich.)

The crew was the best I’ve ever encountered. Business class was spacious, immaculate, and very modern.

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

I like the service and the efficiency. I am lactose intolerant and the lactose intolerant meal in business class was not astounding. Also, the business class fully reclining seats are not that comfortable.

Food was great but they didn't clear my meal tray for 3 hours. You'd think they could check though the cabin now and then.

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

Information on your arrival and departure airports

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