DEN - HEL

$319 Find Cheap Flights from Denver to Helsinki

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 8/15. 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 Helsinki

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Helsinki.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Helsinki.
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Everything you should know

Cheapest round-trip
$662
Typical prices: $767-$539
Icelandair
Tue 9/29Tue 10/6
DEN - HEL • 1 stop
Cheapest one-way
$319
Typical prices: $404-$571
Icelandair
Sat 8/15
DEN - HEL • 1 stop
Top airlines
Cheapest • from $662 (round-trip)
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Denver and Helsinki. You'll need at least 1 connection.
Insights
Insights
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Insights
Top layover airports
Cheapest • Avg $810 (round-trip)
Shortest trip • 13h 28m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 32% price drop
Most popular
Good to know
Good to know
+1
+1
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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

Tue, Sep 29 - Tue, Oct 6
Icelandair Logo
4:40 pm - 11:20 pm
DEN
-
HEL
21h 40m
1 stop
Icelandair Logo
7:10 am - 7:00 pm
HEL
-
DEN
20h 50m
1 stop
$662Icelandair
Mon, Aug 31 - Mon, Sep 7
Icelandair Logo
8:10 pm - 2:00 pm
DEN
-
HEL
32h 50m
1 stop
Icelandair Logo
3:00 pm - 7:00 pm
HEL
-
DEN
13h 00m
1 stop
$680Icelandair
Tue, Sep 29 - Tue, Oct 6
Multiple Airlines Logo
5:40 pm - 12:20 am
DEN
-
HEL
21h 40m
1 stop
Multiple Airlines Logo
7:05 am - 11:08 pm
HEL
-
DEN
25h 03m
2 stops
$689Multiple Airlines
Tue, Sep 29 - Tue, Oct 6
Air Canada Logo
9:40 am - 6:55 pm
DEN
-
HEL
24h 15m
2 stops
Air Canada Logo
7:05 am - 11:08 pm
HEL
-
DEN
25h 03m
2 stops
$708Air Canada
Mon, Aug 31 - Mon, Sep 7
Multiple Airlines Logo
9:40 am - 6:55 pm
DEN
-
HEL
24h 15m
2 stops
Multiple Airlines Logo
6:00 am - 1:45 pm
HEL
-
DEN
16h 45m
1 stop
$719Multiple Airlines
Fri, Aug 21 - Sat, Aug 29
Lufthansa Logo
4:15 pm - 6:55 pm
DEN
-
HEL
17h 40m
1 stop
Lufthansa Logo
6:00 am - 1:45 pm
HEL
-
DEN
16h 45m
1 stop
$740Lufthansa
Mon, Aug 31 - Mon, Sep 7
Multiple Airlines Logo
9:40 am - 6:55 pm
DEN
-
HEL
24h 15m
2 stops
Multiple Airlines Logo
6:55 am - 12:19 am
HEL
-
DEN
26h 24m
2 stops
$749Multiple Airlines
Sun, Aug 23 - Mon, Aug 31
Delta Logo
6:40 am - 12:55 pm
DEN
-
HEL
21h 15m
2 stops
Delta Logo
7:00 am - 10:49 pm
HEL
-
DEN
24h 49m
2 stops
$750Delta
Sat, Aug 22 - Mon, Aug 31
Multiple Airlines Logo
10:30 am - 1:05 pm
DEN
-
HEL
17h 35m
2 stops
Multiple Airlines Logo
7:00 am - 3:31 pm
HEL
-
DEN
17h 31m
2 stops
$752Multiple Airlines
Fri, Aug 28 - Thu, Sep 10
Delta Logo
4:00 pm - 3:20 pm
DEN
-
HEL
14h 20m
2 stops
Delta Logo
7:15 am - 6:34 pm
HEL
-
DEN
20h 19m
2 stops
$762Delta
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 September.

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 $1,039 and $960 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 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$319
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 54% 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 3 days, the lowest price for a flight from Denver to Helsinki was $319 for a one-way ticket and $662 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?

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

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

    The two airlines most popular with KAYAK users for flights from Denver to Helsinki are Delta and Finnair. With an average price for the route of $715 and an overall rating of 7.9, Delta is the most popular choice. Finnair is also a great choice for the route, with an average price of $767 and an overall rating of 7.6.

  • 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.
7.6
FinnairOverall score based on 1392 reviews
7.7Boarding
6.7Food
7.4Comfort
6.9Entertainment
8.2Crew
Airline reviews

Rude Iberia security crew at the Madrid terminal. No Iberia officials to be found to redress complaints at the gate. No supervisors. Nothing for processing upgrades at the gate Iberia app did not work to let me upgrade my options to higher classes. No water was offered on a hot day in Madrid. Madrid airport air conditioning was so weak that people were sweating. Never book on any airlines that codeshare with Iberia.

2.0 MediocreShiva, Apr 2026
MAD - EWR
Read more Finnair reviews

Rude Iberia security crew at the Madrid terminal. No Iberia officials to be found to redress complaints at the gate. No supervisors. Nothing for processing upgrades at the gate Iberia app did not work to let me upgrade my options to higher classes. No water was offered on a hot day in Madrid. Madrid airport air conditioning was so weak that people were sweating. Never book on any airlines that codeshare with Iberia.

Comfort. Not good very little space after the person in front of you lay back.

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.

Great if not for the boarding by bus at Heathrow terminal 3. Medieval disappointing time-consuming and very hard on handicapped flyers. It was awful

Positive: It was refreshingly easy and polite check-in and boarding staff. Flight was on time and Helsinki is a very well-signposted airport. Shopping was nice as well. Flight was not full and I had lots of space in economy. Flight was perfectly on time. Negative: Food and drink not very good, but that it is normal on any airline. Didn't expect anything else.

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.

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Putting people that close to the bathroom, where you have to look into the bathroom as people are exiting and entering was not great and the smell was also not great. I know the airlines are desperate for more chairs, but that seat is a crime.

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

No seat back entertainment. And app had a hard time getting entertainment loaded.

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Terrible, horrible, disappointing- without telling us they changed planes and moved and separated our seats to opposite sides - said they changed seats putting us together - got to airport to find no, they did not - we sat opposing sides of plane - food overly salty to inedible, never saw stewardess but once - it was terrible

not sure why you ask about food, I n3ver get food on flights except maybe cookies or pretzels. wifi was slow and in and out most of the flight not good.

The crew was very attentive through out the flight. Seats were comfortable, nice flight bag with pillow and blanket. Food was okay, since it was a overnight flight seemed to go by fast.

The flight attendant on my side of business class seemed like a novice and did not provide good service. Otherwise the flight was good and the entertainment system was very good. No free WiFi.

Cancelled BOYH legs of our flight home 30 min before initial boarding

Cancelled the flight half hour before boarding. Then cancelled the connecting flight too.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

Pleasant, attentive flight attendants, but they’ve got to upgrade their seats to be a true “business class” carrier.

Friendly flight crew. Airplane (757) configured as a domestic flight (no lie-flat seats) & no advanced meal selection.

Was a bit surprised that Icelandair flies a domestically configured 757s on long-haul flights to Iceland (no lie-flat seats in business class).

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

I’m considering never flying with Iceland Air again. The seats in economy are torture. Now you only get water, coffee and tea for free- really? No food, not a single peanut. The passport line was insane, everyone was worried about catching their connecting flight. This was the third time I’ve barely made my connection, had to run. It can’t be that my choice is to use the bathroom (during the 50 minutes between flights) or make my flight. SO stressful! Ugh.

Iceland Air severely damaged a checked bag. Additionally, the gate agent caused issues for many passengers who had standard-sized onboard bags that would have passed inspection by any other airline.

Nice, quick flight. There were lots of empty seats so they told me I could sit next to the emergency exit where I would have more legroom.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

Definitely get premium economy on a flight this long if you can. Your legs and while body will thank you.

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

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

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

Information on your arrival and departure airports