HEL - DEN

$820 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 11/20. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$820
Overall average: $1,321
Multiple Airlines
Fri 12/5Thu 12/11
HEL - DEN • 2 stops
Cheapest one-way
$539
Multiple Airlines
Thu 11/20
HEL - DEN • 3 stops
Top airlines
Lufthansa
Cheapest • from $824 (round-trip)
Icelandair
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 21% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 21% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Flight 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

Fri, Dec 5 - Thu, Dec 11
Multiple Airlines Logo
10:30 pm - 8:24 amHEL-DEN
42h 54m2 stops
Multiple Airlines Logo
3:40 pm - 12:55 pmDEN-HEL
12h 15m1 stop
$820Multiple Airlines
Find Deal
Thu, Dec 25 - Thu, Jan 8
Lufthansa Logo
6:55 am - 4:00 pmHEL-DEN
18h 05m1 stop
Lufthansa Logo
4:20 pm - 6:50 pmDEN-HEL
17h 30m1 stop
$824Lufthansa
Find Deal
Mon, Dec 8 - Thu, Dec 11
Multiple Airlines Logo
1:55 pm - 11:59 pmHEL-DEN
19h 04m2 stops
Multiple Airlines Logo
6:00 am - 12:55 pmDEN-HEL
21h 55m2 stops
$836Multiple Airlines
Find Deal
Thu, Dec 25 - Thu, Jan 8
Lufthansa Logo
6:55 am - 4:00 pmHEL-DEN
18h 05m1 stop
Lufthansa Logo
3:47 pm - 4:30 pmDEN-HEL
15h 43m2 stops
$839Lufthansa
Find Deal
Thu, Dec 25 - Thu, Jan 8
United Airlines Logo
6:55 am - 4:00 pmHEL-DEN
18h 05m1 stop
United Airlines Logo
4:20 pm - 6:50 pmDEN-HEL
17h 30m1 stop
$840United Airlines
Find Deal
Thu, May 7 - Mon, May 11
Lufthansa Logo
7:05 am - 1:35 pmHEL-DEN
15h 30m1 stop
Lufthansa Logo
4:05 pm - 7:00 pmDEN-HEL
17h 55m1 stop
$841Lufthansa
Find Deal
Thu, May 7 - Mon, May 11
United Airlines Logo
7:05 am - 3:35 pmHEL-DEN
17h 30m1 stop
United Airlines Logo
5:42 pm - 12:30 amDEN-HEL
21h 48m2 stops
$843United Airlines
Find Deal
Thu, May 7 - Mon, May 11
United Airlines Logo
1:50 pm - 8:55 amHEL-DEN
28h 05m2 stops
United Airlines Logo
8:20 pm - 7:00 pmDEN-HEL
13h 40m1 stop
$846United Airlines
Find Deal
Thu, May 7 - Mon, May 11
Lufthansa Logo
1:50 pm - 11:50 pmHEL-DEN
19h 00m2 stops
Lufthansa Logo
4:05 pm - 7:00 pmDEN-HEL
17h 55m1 stop
$847Lufthansa
Find Deal
Thu, Dec 25 - Thu, Jan 8
Multiple Airlines Logo
5:30 am - 4:00 pmHEL-DEN
19h 30m3 stops
Multiple Airlines Logo
4:20 pm - 8:00 amDEN-HEL
30h 40m3 stops
$864Multiple Airlines
Find Deal
Booking Insights

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 December and March, where the average cost of round-trip tickets is $1,321 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 2 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$539
Best time to beat the crowds but there is an average 3% 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 $539 for a one-way ticket and $820 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 is the only airline alliance operating flights between Helsinki and Denver.

  • 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 $877 and an overall rating of 7.1, 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.

Reviews of the 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.
7.1
IcelandairOverall score based on 578 reviews
8.0Crew
6.2Food
6.9Comfort
7.2Boarding
7.0Entertainment
Airline reviews

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

10.0 ExcellentJef, Nov 2025KEF - PDX
Read more Icelandair reviews

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

It was good. The air plane is clean and staff were friendly.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

Great experience on Icelandair flight from Newark to Amsterdam by way of Reykjavík. Courteous and professional staff. Food was solid. Service - outstanding. Cabin was a little warm.

Airline food is airline food, but the plane was wonderful and the seating comfort outstanding. One of my best flights in quite a while.

Crew was outstanding, helpful and friendly. Food is deteriorating. The snack at the end of the flight was not good, a greasy moosh of toast cheese snd other unidentifiable ingredients. Coming from Germany a pretzl with butter would have been better. Entertainment had a great selection.

Smooth flight with enough time for connection. Ran out of meal options. In-flight and gate staff were friendly and helpful. Good service overall.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Give yourself over 2+ hours layover because if flight is slighlty delayed and you miss your connection, Lufthansa will do nothing for you

We would have missed our connection from Munich to Boston but we had a van outside the plan that wisked us to our terminal. Much appreciated and we didn’t even realize that Lufthansa had done this until the announcement on disembarkation. Well organized airline! Will definitely fly Lufthansa again!!!

Everything went well. I will fly with Lufthansa again. And use Kayak whenever I book flights

Bought a seat in a flight that got changed out so ended up paying for a seat I would have had if I hadn't paid.

Food was poor quality and the screens for entertainment didn’t work properly

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

Information on your arrival and departure airports