DEN - HEL

$266 Find Cheap Flights from Denver to Helsinki - 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 Denver to Helsinki departing on 8/17. 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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Everything you should know

Cheapest round-trip
$569
Typical prices: $531-$741
Icelandair
Thu 11/5Thu 11/12
DEN - HEL • 1 stop
Cheapest one-way
$266
Typical prices: $402-$489
Icelandair
Mon 8/17
DEN - HEL • 1 stop
Top airlines
Cheapest • from $569 (round-trip)
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Denver and Helsinki. You'll need at least 1 connection.
Insights
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Insights
Top layover airports
Cheapest • Avg $954 (round-trip)
Shortest trip • 12h 41m (one-way)
Insights
Insights
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Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 57% compared to booking last minute.
Insights
Insights
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Insights
When to travel
Cheapest • 38% price drop
Most popular
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Denver to Helsinki (DEN-HEL)

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

Thu, Nov 5 - Thu, Nov 12
Icelandair Logo
3:40 pm - 1:00 pm
DEN
-
HEL
12h 20m
1 stop
Icelandair Logo
2:00 pm - 6:00 pm
HEL
-
DEN
13h 00m
1 stop
$569Icelandair
Tue, Dec 1 - Sat, Dec 5
Icelandair Logo
3:40 pm - 1:00 pm
DEN
-
HEL
12h 20m
1 stop
Icelandair Logo
2:00 pm - 6:00 pm
HEL
-
DEN
13h 00m
1 stop
$571Icelandair
Wed, Jan 20 - Wed, Jan 27
Multiple Airlines Logo
11:20 am - 6:45 pm
DEN
-
HEL
22h 25m
2 stops
Multiple Airlines Logo
7:05 am - 7:17 pm
HEL
-
DEN
21h 12m
2 stops
$708Multiple Airlines
Mon, Nov 16 - Mon, Nov 30
Lufthansa Logo
4:15 pm - 6:45 pm
DEN
-
HEL
17h 30m
1 stop
Lufthansa Logo
12:35 pm - 2:30 pm
HEL
-
DEN
34h 55m
1 stop
$715Lufthansa
Mon, Nov 16 - Mon, Nov 30
Multiple Airlines Logo
11:20 am - 6:45 pm
DEN
-
HEL
22h 25m
2 stops
Multiple Airlines Logo
7:30 pm - 2:30 pm
HEL
-
DEN
28h 00m
1 stop
$719Multiple Airlines
Wed, Jan 20 - Wed, Jan 27
American Airlines Logo
7:50 am - 10:30 am
DEN
-
HEL
17h 40m
1 stop
American Airlines Logo
12:30 pm - 6:13 pm
HEL
-
DEN
14h 43m
1 stop
$727American Airlines
Sun, Dec 6 - Thu, Dec 10
United Airlines Logo
11:40 pm - 12:00 pm
DEN
-
HEL
27h 20m
2 stops
United Airlines Logo
12:45 pm - 2:30 pm
HEL
-
DEN
34h 45m
1 stop
$747United Airlines
Mon, Jan 18 - Mon, Jan 25
United Airlines Logo
11:40 pm - 11:50 am
DEN
-
HEL
27h 10m
2 stops
United Airlines Logo
12:35 pm - 10:30 am
HEL
-
DEN
54h 55m
2 stops
$750United Airlines
Thu, Nov 5 - Thu, Nov 12
Lufthansa Logo
4:15 pm - 6:45 pm
DEN
-
HEL
17h 30m
1 stop
Lufthansa Logo
7:00 am - 3:35 pm
HEL
-
DEN
17h 35m
1 stop
$761Lufthansa
Wed, Sep 16 - Wed, Sep 30
American Airlines Logo
9:07 am - 2:15 pm
DEN
-
HEL
20h 08m
1 stop
American Airlines Logo
12:35 pm - 10:06 pm
HEL
-
DEN
18h 31m
2 stops
$787American Airlines
Booking Insights

KAYAK's insights & trends for Denver to Helsinki flights

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

How much is a round-trip flight from Denver to Helsinki?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Helsinki departing in November.

Flight prices are typical for this route right now.

Flights to Helsinki from Denver usually cost between $520 and $824 in November.
The lowest price found in the past 5 days was $569 on Icelandair (Nov 5-Nov 12).

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Helsinki, 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 Helsinki is April, where tickets cost $460 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,186 and $1,001 respectively.

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

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 Helsinki, 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 Helsinki, you should book around 4 weeks before departure, which saves you about 57% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low season

March

Cheapest flight

$266
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 59% increase in price.
Flight from Denver to Helsinki

When to book flights from Denver to Helsinki

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

  • What are the transport options from Helsinki Airport to downtown?

    I and P trains of Finish Railways VR connect Lentoasema of HEL Airport to downtown Helsinki. The trains operate every 5 minutes. Bus Lines 600 and 415N of Helsingin Seudun Liikenne link HEL Airport to downtown HEL and operate every 15 minutes. Bus Line, v130 of Onni Bus connects HEL Airport to downtown Helsinki and operates once daily.

  • What are some layover cities for flights from Denver to Helsinki?

    All flights from DEN to HEL have layovers en route. Some of the common layover cities include Reykjavik (KEF) by Icelandair, Munich (MUC) by Lufthansa and United, Chicago (ORD) by British, Dallas (DFW) by American, Frontier and Finnair, and London (LHR) by Lufthansa.

  • Can a minor fly unaccompanied from Denver to Helsinki?

    Your minor, aged 5 to 14, can travel alone with United from DEN to HEL for a fee. You must escort your minor to the airport at least 2hr 30min before departure. You must provide the minor's birth certificate for age verification alongside the passport. You must also provide your phone number and photo ID as well as the receiving adult's name, phone number, photo, and address.

  • Which airlines offer accessible services from Denver to Helsinki?

    American Airlines offer people with special needs traveling from DEN to HEL accessible services. The airline offer wheelchair assistance to those with reduced mobility during navigation, boarding, and deplaning. They also have mobility aid equipment onboard, such as wheelchairs, walkers, and crutches. They offer services such as priority boarding and spacious seating options for these people.

  • What is the cheapest flight from Denver to Helsinki?

    In the last 5 days, the lowest price for a flight from Denver to Helsinki was $266 for a one-way ticket and $569 for a round-trip.

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

    Yes

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

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

  • Which airline alliances offer flights from Denver to Helsinki?

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

  • Which is the best airline for flights from Denver to Helsinki, Finnair or United Airlines?

    The two airlines most popular with KAYAK users for flights from Denver to Helsinki are Finnair and United Airlines. With an average price for the route of $652 and an overall rating of 7.7, Finnair is the most popular choice. United Airlines is also a great choice for the route, with an average price of $775 and an overall rating of 7.4.

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

    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 Helsinki.

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

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

    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 Helsinki with an airline and back to Denver with another airline. Booking your flights between Denver and HEL 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 Helsinki?

    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 Helsinki 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 Helsinki

  • Lufthansa Airline can offer special meals personalized to meet your dietary requirements and preferences if you travel from Denver International Airport (DEN) to Helsinki-Vantaa International Airport (HEL). They include diabetic, vegan, religion- or culture-specific, vegetarian, gluten- or lactose-free, and low-fat meals.
  • If you fly with British Airlines, you can travel with a carry-on bag and a personal item from DEN to HEL. The airline allows a maximum weight of 50.71 lb for your carry-on bag with maximum dimensions of 22 x 17 x 9.8 inches. The dimensions of your personal items must not exceed 15 x 11.8 x 5.9 inches.
  • If you fly with Lufthansa from DEN to HEL, you can travel with your pet. Your pet should be in a small transport bag that must fit under a seat with maximum dimensions of 22 x 16 x 9 inches. It should also be comfortable for your pet, and its combined weight with your pet must not exceed 17 lb.
  • You remain stress-free when you travel with your child from DEN to HEL with Icelandair. The airline has various family-friendly services, allowing you to board with your FAA-approved child restraint system. They also offer child-friendly meals, priority boarding if you have a child and lavatories with changing tables.
  • You can book Business- and First-class flights with American Airlines from DEN to HEL. These passengers can access their American Airlines Admirals Club at Concourse A on the Airside of DEN Airport and enjoy increased baggage allowance and premium dining options.

Reviews of the top 5 airlines serving from Denver to Helsinki

 
See real verified KAYAK customer reviews for airlines flying from Denver to Helsinki. 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 Helsinki? 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.
7.7
FinnairOverall score based on 1428 reviews
6.7Food
8.2Crew
6.9Entertainment
7.7Boarding
7.4Comfort
Airline reviews

More leg room than I expected, comfy seats, complimentary soft drinks when requested.

8.0 ExcellentMuckney, Aug 2026
CPH - HEL
Read more Finnair reviews

More leg room than I expected, comfy seats, complimentary soft drinks when requested.

The seats are very uncomfortable. They never have tomato juice. Usually late

Finnair was not able to get our luggage on a connecting flight and there was a substantial delay of two days to obtain our lugguage. They did not communicate well, and we had to travel a significant distance to finally get our luggage. It has been a very negative experience.

On a more than 8 hours flight was only one meal included, which I have never experienced before. Always two meals on the overseas flight. It was very weird.

Business seating is soooo uncomfortable. You can sit straight up or lay down. You need pillows behind you because the back doesn’t lay down. Those are need to “prop” you up. The chair has no padding whatsoever. Food was gross. I’ve eaten on Finnair before and the food was exceptional. This time it gave 2 people in our party diarrhea. It was the chicken dish. I took 2 bites and didn’t eat anything more. The flight attendants were nice. You needed an additional lounge in Terminal D at DFW Airport. After waiting 40 minutes to enter, we finally gave up and went to a bar across from the club doors. I’m unsure if I’ll ever book a Finnair flight again.

It was a good flight, very comfortable seats for sleeping in business class. Probably the most comfortable business class seat I've ever had (20+ times in business class on various airlines). Service was good, but the only downside is my screen didn't work and it had to be reset multiple times to get it to shut off. I had to block my eyes because the screen was white almost the entire flight and I wore an eye mask when I slept. But when eating and reading in my seat, my eyes hurt because the only way to turn the screen off was reset it and the screen would only be off for a few minutes at a time.

Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

Had a nice flight to London on BA will fly with them again in the future

flight was excellent. The crew was very helpful. Finnair made this 10 hour flight flyby. The entertainment screens on every seat really help save the battery life of your personal devices. We were served dinner and even a light breakfast, both of which were tasty. The crew even did all they could to help one group of passengers with their child, as to keep them comfortable during the flight.

Flight was late to take off Plane broke down Had to move everyone to another plane Told we weren’t going to LGA but Newark Also told we would be taken to NY But United lied and we ended up at Newark at 2 in the morning Horrible experience. And the experience of trying to get compensation from United is just as bad. They could not care less about their passengers Never again!

Flight was delayed “due to earlier delays of that plane”, so we were nearly three hours late.

I needed internet for critical matters and it never worked.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

This planes staff was top tier. Everything went great and had a great flight home.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

It was a short flight so I was expecting too much

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

Finnair is a really good airline! We specifically looked for them on this trip. On time, great crew, and overall great experience.

The flight attendants were extremely sourly and borderline rude. I did not feel appreciated as an AA customer once.

As we approached Denver, we encountered quite a bit of turbulence. I know this can sometimes be the case as I frequently fly this route but not on American. My gripe: Usually a pilot or co-pilot alerts passengers to the possibility of turbulance ahead of time. This did not occur nor did he communiucate during what was a pretty rough ride.

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

Mechanical delay and no compensation. Missed connection as a result of their delay. Mediocre performance and service. Horrible airline currently with horrible culture.

Any sort of gluten free snack option would be nice

Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Awful customer service on the phone. No phone number on the website to call a real person. Website says changes are no charge but this is a lie. I had a cheaper ticket through Kayak therefore Finnair wouldn’t change it unless I would pay the entire fare again. I begged but their agents at the airport were rude and the online chat person cut off the call with no help. Super disappointed. Wont fly this airline again and will tell everyone I meet how bad it is. Crew on the flight was nice but otherwise huge disappointment.

I DO NOT recommend Iceland air...missed connecting flight.....paid for isle seat upgrade for health reasons...had to do that over....baggage left in the rain so clothes got soaked other items ruined....called customer * dont care* service

The ticket was reserved in my name but not paid for by underpricer. Alaska airlines was unable to issue my ticket (could not connect the ticket with the PNR) due to an error with underpricer and I spent the better part of 2 hours at the ticket counter trying to rectify.

Damage May baggage and I report the airport agant and they see it

Crew was very friendly. Need lay flat beds! More snacks

Good. Rxception is the Entertainment - movies and TV shows all out of date…

I liked the crew but not the uncomfortable seats and lack of movie and tv selection.

They cancelled our connecting flight resulting in another layover reaching our final destination 8 hours later than scheduled.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Staff in flight and at the airport were very helpful. A short time between flights made it stressful to get to the connecting flight and we probably would not have made it without the staff’s help.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

Very good, i got two seats for myself, and was comfortable with the blanket i got

Food is too little (in volume) and too spicy.. There are no snacks in the back of the plane in between meals.

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.

Both flights were delayed and we missed our connection. Our second flight was delayed 3 times. I have always had great service and never any problems with my flights on Lufthansa. My last two flights were, unfortunately, awful. I fly quite often to Germany and have had better luck with United than Lufthansa.

Excellent staff and flight experience. Would rather that I had upgraded to Premium Economy for extra space, but I will know to do it next time.

It was my first experience in business class. It was everything I expected and more. Service was impeccable, food was delicious and I felt rested once I arrived to London

Sorry, I’m not a fan of United. The seats are just too cramped and uncomfortable if you are traveling very far.

Zero legroom or space in economy. Flight was delayed into Munich causing a missed connecting flight and other missed bookings. :(

A major problem at the Frankfurt terminal. You see your connecting flight is on concourse A and you see signs for A, but when you start to walk out to A, only then do you find A is in another terminal which requires a bus ride, passport control and customs. If you sit around in the first terminal too long, you can miss your flight. We made ours.

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

Information on your arrival and departure airports