HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Helsinki

$354+ Cheap flights from Denver (DEN) to Helsinki (HEL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — HEL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Helsinki with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Denver Intl to Helsinki-Vantaa are usually found in November or January, booked 90 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Denver to Helsinki

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Helsinki (HEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$420
(Ticket)

One-way from

$354
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$641
From Denver Intl to Helsinki-Vantaa
Search Deals
One-way flight from Denver Intl to Helsinki-Vantaa
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($194 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Denver to Helsinki

Cheapest flights from Denver to Helsinki
Explore the most affordable flight options available from Denver to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/183:40 pmDEN - HEL
1 stop12h 15mIcelandair
Thu 12/41:55 pmHEL - DEN
1 stop13h 10mIcelandair
Deal found 9/9$368
This Icelandair deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/173:40 pmDEN - HEL
1 stop12h 15mIcelandair
Thu 12/41:55 pmHEL - DEN
1 stop13h 10mIcelandair
Deal found 9/9$391
This Ticket deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/277:10 amDEN - HEL
2 stops19h 30mScandinavian Airlines
Sun 11/96:15 amHEL - DEN
2 stops26h 44mScandinavian Airlines
Deal found 9/10$420
This Ticket deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/33:40 pmDEN - HEL
1 stop12h 15mIcelandair
Wed 11/191:55 pmHEL - DEN
1 stop13h 10mIcelandair
Deal found 9/11$436
This FlightHub deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/187:10 amDEN - HEL
2 stops18h 30mScandinavian Airlines
Sat 12/66:15 amHEL - DEN
2 stops25h 47mScandinavian Airlines
Deal found 9/9$450
This Ticket deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/31:25 pmDEN - HEL
2 stops38h 45mAir Canada
Wed 11/196:55 amHEL - DEN
2 stops19h 49mAir Canada
Deal found 9/11$456
This Scandinavian Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:05 amDEN - HEL
3 stops20h 45mScandinavian Airlines
Wed 11/196:15 amHEL - DEN
2 stops26h 44mScandinavian Airlines
Deal found 9/8$463
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/278:06 amDEN - HEL
1 stop18h 39mAmerican Airlines
Sun 11/912:30 pmHEL - DEN
1 stop14h 22mAmerican Airlines
Deal found 9/10$473
This Mytrip deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/234:40 pmDEN - HEL
1 stop12h 20mIcelandair
Wed 11/191:55 pmHEL - DEN
1 stop13h 10mIcelandair
Deal found 9/8$474
This Scandinavian Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/161:10 pmDEN - HEL
3 stops25h 35mScandinavian Airlines
Fri 11/216:15 amHEL - DEN
2 stops26h 44mScandinavian Airlines
Deal found 9/9$480

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Helsinki that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Denver to Helsinki that are best for you.

Fly from

Denver

Fly to

Helsinki

Route

Depart

Return

Price

DenverHelsinki

DEN - HEL

DENHEL

Denver Intl

Mon 11/17

3:40 pm-12:55 pm

1 stop12h 15m

Helsinki-Vantaa

Thu 12/4

1:55 pm-6:05 pm

1 stop13h 10m

$391

DenverHelsinki

DEN - HEL

DENHEL

Denver Intl

Mon 3/2

3:40 pm-12:55 pm

1 stop12h 15m

Helsinki-Vantaa

Fri 3/13

1:55 pm-7:05 pm

1 stop13h 10m

$441

DenverHelsinki

DEN - HEL

DENHEL

Denver Intl

Mon 3/9

4:40 pm-12:55 pm

1 stop12h 15m

Helsinki-Vantaa

Thu 3/19

1:55 pm-7:05 pm

1 stop13h 10m

$441

DenverHelsinki

DEN - HEL

DENHEL

Denver Intl

Tue 9/23

7:05 am-12:50 pm

3 stops20h 45m

Helsinki-Vantaa

Wed 11/19

6:15 am-11:59 pm

2 stops26h 44m

$463

DenverHelsinki

DEN - HEL

DENHEL

Denver Intl

Tue 3/10

6:30 am-3:25 pm

2 stops24h 55m

Helsinki-Vantaa

Wed 3/18

6:15 am-10:55 pm

2 stops24h 40m

$473

DenverHelsinki

DEN - HEL

DENHEL

Denver Intl

Tue 9/23

4:40 pm-2:00 pm

1 stop12h 20m

Helsinki-Vantaa

Wed 11/19

1:55 pm-6:05 pm

1 stop13h 10m

$474

DenverHelsinki

DEN - HEL

DENHEL

Denver Intl

Sun 1/18

6:30 am-8:20 pm

3 stops28h 50m

Helsinki-Vantaa

Wed 1/21

11:20 am-10:55 pm

2 stops20h 35m

$480

DenverHelsinki

DEN - HEL

DENHEL

Denver Intl

Tue 3/10

1:10 pm-3:20 pm

1 stop18h 10m

Helsinki-Vantaa

Wed 3/18

12:30 pm-7:58 pm

1 stop15h 28m

$482

DenverHelsinki

DEN - HEL

DENHEL

Denver Intl

Mon 12/29

6:21 am-10:45 am

1 stop19h 24m

Helsinki-Vantaa

Sun 1/11

12:30 pm-9:42 pm

2 stops18h 12m

$486

DenverHelsinki

DEN - HEL

DENHEL

Denver Intl

Sun 9/28

10:29 pm-2:40 pm

3 stops55h 11m

$354

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 19 results
1
2

Best time to book a flight from Denver to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Denver to Helsinki. Price data was last updated on August 29, 2025.

The best time to book flights from Denver to Helsinki is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Denver to Helsinki?

Currently, November is the cheapest month in which you can book a flight from Denver to Helsinki (average of $444). Flying from Denver to Helsinki in June is currently the most expensive (average of $1,082). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to HEL?

Find hourly flight availability from Denver to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s optimal to fly from Denver to Helsinki in the evening. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight in the morning.

How much does it cost to fly round-trip from Denver to Helsinki?

Reviews of airlines servicing Helsinki

Get insights into the airlines that provide service to Helsinki. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helsinki. Reviews last updated September 11, 2025.
See what other customers who have flown with Finnair, United Airlines, and American Airlines from Denver to Helsinki have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,323 reviews

Overall

7.6

Comfort

7.5

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
Finnair
7.6
Good
1,323 reviews
Finnair
7.6
Good
1,323 reviews

Overall

7.6

Comfort

7.5

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
United Airlines
7.4
Good
8,937 reviews
Finnair
7.6
Good
1,323 reviews

Overall

7.6

Comfort

7.5

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
American Airlines
7.2
Good
10,000 reviews
Finnair
7.6
Good
1,323 reviews

Overall

7.6

Comfort

7.5

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
Icelandair
7.0
Good
546 reviews
Finnair
7.6
Good
1,323 reviews

Overall

7.6

Comfort

7.5

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
Lufthansa
6.8
Okay
7,409 reviews
Finnair
7.6
Good
1,323 reviews

Overall

7.6

Comfort

7.5

Boarding

7.6

Crew

8.1

Food

6.7

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.

Related info for your journey

Find useful and relevant information for your journey from Denver to Helsinki. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Denver to Helsinki?

    Departing from Denver to Helsinki will take you 12h 15m. The distance between Denver and Helsinki is about 4949 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Denver to Helsinki round-trip?

    Our cheapest airline available from Denver to Helsinki is Icelandair. Our recent data shows that you can find tickets from as low as $351 on this airline. Additional options worth looking into are British Airways and Finnair, starting at $442 and $457 round-trip. Users have found that Icelandair is 42% cheaper than the other options available to this destination.

  • Can I find deals for flights from Denver to Helsinki that include hotel bookings?

    Yes. In addition to deals on Denver to Helsinki flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Helsinki?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Helsinki.

  • Can I find deals for business class flights from Denver to Helsinki?

    Yes. Cheapflights offers flight deals from Denver to Helsinki by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Helsinki?

    Currently, November is the cheapest month in which you can book a flight from Denver to Helsinki (average of $444). Flying from Denver to Helsinki in June is currently the most expensive (average of $1,082). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa
Lahti

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Denver to Helsinki

See prices for flight routes from nearby airports that may be better suited for you.
Colorado Springs to Helsinki flights
Denver to Turku flights

Top 8 airlines flying from Denver to Helsinki

Discover the top 8 airlines that operate flights from Denver to Helsinki. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$351Average$477FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$442Average$693FlexibilityNo cancel feeOn-time70%
FinnairCheapest$457Average$614FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$458Average$692FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$501Average$672FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$509Average$690FlexibilityNo cancel feeOn-time76%
DeltaCheapest$517Average$637FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$526Average$620FlexibilityNo cancel feeOn-time77%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.