Cheap flights from Washington, D.C. Reagan-National Airport to Helsinki from $397
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Helsinki departing on 8/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Washington, D.C. Reagan-National Airport to Helsinki
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Air Canada flights from Washington, D.C. Reagan-National Airport to Helsinki
Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Helsinki flight tickets
British Airways flights from Washington, D.C. Reagan-National Airport to Helsinki
Our best British Airways deals on Washington, D.C. Reagan-National Airport to Helsinki flight tickets
See travel insights to Helsinki from
How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Helsinki
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to Helsinki?
The cheapest day to depart on your flight to Helsinki is on a Tuesday when prices can be found for as low as $364. This is often the case because there is less demand to fly during this day of the week. Flights from Washington, D.C. Reagan-National Airport to Helsinki on a Wednesday will generally be more expensive and average around $692. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Helsinki?
According to our data, the cheapest time of day to fly to Helsinki is in the evening. momondo users have found flights departing from Washington, D.C. Reagan-National Airport to Helsinki in the evening for as low as $399. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Helsinki, so prices are often more expensive at around $541 per ticket.
When to book flights from Washington, D.C. Reagan-National Airport to Helsinki
Cheap Washington, D.C. Reagan-National Airport to Helsinki (DCA to HEL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Helsinki
How far is Washington, D.C. Reagan-National to Helsinki-Vantaa by plane?
A flight from Washington, D.C. Reagan-National to Helsinki-Vantaa will travel around 4306.2 mi. Flights usually cover this in 11h 40m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Helsinki-Vantaa Airport?
Prices for flights from Washington, D.C. Reagan-National Airport to Helsinki-Vantaa Airport refresh daily.
How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Helsinki-Vantaa Airport?
As of July 2025, there is 1 operator available to choose from for flights from Washington, D.C. Reagan-National Airport to Helsinki-Vantaa Airport.
How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Helsinki-Vantaa Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Helsinki-Vantaa Airport.
What documentation or ID do you need to fly to Helsinki-Vantaa Airport?
The travel and health documents you'll need for your trip to Helsinki-Vantaa Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Helsinki-Vantaa Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Washington, D.C. Reagan-National Airport to Helsinki?
Based on momondo bookings for flights between Washington, D.C. Reagan-National Airport and Helsinki, the leading airline is American Airlines, making up 100% of the total bookings.
Best airlines flying from Washington, D.C. Reagan-National Airport to Helsinki
Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Helsinki with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $430 | Free Cancellation | Rating 7.2 10,000 reviews |
Traveling to a place near Helsinki?
Book flights to Helsinki if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to Helsinki?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Helsinki. momondo saves you time and could save you money on your trip.
Can I find flights from Washington, D.C. to Helsinki with flexible booking policies on momondo?
momondo does allow users to show only those flights to Helsinki from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Washington, D.C. to Helsinki?
momondo helps you find the best flight between Washington, D.C. and Helsinki by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Washington, D.C. to Helsinki right now. Can momondo alert me if prices change?
Price alerts on flights to Helsinki from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.