$366 Find Cheap Flights from Denver to Helsinki - Compare and Save

Three cabin classes are available on flights from Denver to Helsinki:

• Economy Class
• Premium Economy Class
• Business Class

A nonstop flight from Denver to Helsinki takes 00m, covering 4,949 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Round-trip flights from Denver to Helsinki range from $599 to $1,014, with an average of $779 over the past 12 months. Anything below $599 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 57% above the $779 route average. Book 25 weeks before departure for the lowest fares.

One-way fares from Denver to Helsinki are currently higher than usual. Average one-way flight prices are about $918, which is 102% above the typical average for this route.

Helsinki-Vantaa Airport (HEL) hosts 5 major car rental companies, with daily rates averaging $51 for economy cars. Top options include:

• GREEN MOTION
• ADDCAR RENTAL
• Alamo
• Sixt
• Europcar

Flights from Denver to Helsinki usually depart from Denver Intl (DEN) and arrive at Helsinki-Vantaa (HEL).

One-stop flights from Denver to Helsinki most commonly connect through:

• Reykjavik Keflavik Intl (KEF) - 76% of one-stop connections
• Dallas/Fort Worth (DFW) - 12% of one-stop connections
• Frankfurt am Main (FRA) - 4% of one-stop connections
• Munich Franz Josef Strauss (MUC) - 4% of one-stop connections

Yes. Flexible dates can save you up to 19% on flights from Denver to Helsinki. Thursday is the cheapest departure day at $748 round-trip on average, while Tuesday is the most expensive at $923, a difference of $175.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Flying via Reykjavik Keflavik Intl (KEF) gives the shortest average 1-stop total travel time at 13h 39m, compared with 14h 22m via Dallas/Fort Worth (DFW) and 16h 21m via Chicago O'Hare Intl (ORD).

Helsinki is 9 hours ahead of Denver (Eastern European Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Helsinki are Helsinki Central Station Square, Helsingin päärautatieasema and Esplanadi park. These are among the most viewed places in Helsinki on KAYAK.

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.

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.

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.

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.