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$252+ Cheap flights from Key Largo, FL 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — HEL
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Helsinki-Vantaa are usually found in November or October, booked 87 days in advance, depart on a Wednesday or Saturday and return on a Monday

Cheap flight deals from Key Largo to Helsinki

Keep the following information in mind while searching for Key Largo to Helsinki flight deals. Data was last updated July 31, 2025.

Round-trip from

$482
(American Airlines)

One-way from

$252
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,116
From Key Largo to Helsinki-Vantaa
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One-way flight from Key Largo to Helsinki-Vantaa
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Highest demand for flights based on searches. 24% potential increase in price ($281 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Key Largo to Helsinki

Cheapest flights from Key Largo to Helsinki
Explore the most affordable flight options available from Key Largo to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Finnair deal was found by Cheapflights users on 7/31. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:15 pmMIA - HEL
1 stop12h 40mFinnair
Wed 11/2612:30 pmHEL - MIA
1 stop14h 51mFinnair
Deal found 7/31$481
This American Airlines deal was found by Cheapflights users on 7/30. 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 10/64:36 pmMIA - HEL
1 stop14h 24mAmerican Airlines
Thu 10/1612:35 pmHEL - MIA
1 stop14h 51mAmerican Airlines
Deal found 7/30$482
This Mytrip deal was found by Cheapflights users on 7/31. 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 8/127:55 amMIA - HEL
2 stops28h 00mMultiple Airlines
Tue 8/266:10 amHEL - MIA
1 stop15h 30mMultiple Airlines
Deal found 7/31$487
This oojo deal was found by Cheapflights users on 7/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:55 pmMIA - HEL
1 stop21h 10mScandinavian Airlines
Wed 11/2611:20 amHEL - MIA
1 stop13h 45mScandinavian Airlines
Deal found 7/29$491
This Mytrip deal was found by Cheapflights users on 7/30. 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.
Sun 8/104:40 pmMIA - HEL
1 stop13h 10mLufthansa
Tue 8/266:10 amHEL - MIA
1 stop15h 30mLufthansa
Deal found 7/30$496
This Air Canada deal was found by Cheapflights users on 7/31. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1212:45 pmMIA - HEL
2 stops22h 55mAir Canada
Wed 11/266:50 amHEL - MIA
2 stops36h 09mAir Canada
Deal found 7/31$501
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1212:20 pmMIA - HEL
2 stops23h 35mUnited Airlines
Tue 8/266:10 amHEL - MIA
2 stops23h 05mUnited Airlines
Deal found 7/31$516
This Ovago deal was found by Cheapflights users on 7/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/216:30 pmMIA - HEL
2 stops21h 45mBritish Airways
Wed 11/2612:30 pmHEL - MIA
1 stop15h 46mBritish Airways
Deal found 7/30$530
This FlightHub deal was found by Cheapflights users on 7/30. 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.
Mon 10/610:15 pmMIA - HEL
1 stop30h 25mTurkish Airlines
Wed 10/157:35 pmHEL - MIA
1 stop31h 45mTurkish Airlines
Deal found 7/30$584

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo 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 July 31, 2025.
Use the filters below to find and compare flights from Key Largo to Helsinki that are best for you.

Fly from

Key Largo

Fly to

Helsinki

Route

Depart

Return

Price

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Wed 11/12

6:15 pm-1:55 pm

1 stop12h 40m

Helsinki-Vantaa

Wed 11/26

12:30 pm-8:21 pm

1 stop14h 51m

$481

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Mon 10/6

4:36 pm-2:00 pm

1 stop14h 24m

Helsinki-Vantaa

Thu 10/16

12:35 pm-8:26 pm

1 stop14h 51m

$482

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Tue 8/12

7:55 am-6:55 pm

2 stops28h 00m

Helsinki-Vantaa

Tue 8/26

6:10 am-2:40 pm

1 stop15h 30m

$487

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Wed 11/12

7:55 pm-12:05 am

1 stop21h 10m

Helsinki-Vantaa

Wed 11/26

11:20 am-6:05 pm

1 stop13h 45m

$491

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Sun 8/10

4:40 pm-12:50 pm

1 stop13h 10m

Helsinki-Vantaa

Tue 8/26

6:10 am-2:40 pm

1 stop15h 30m

$496

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Wed 11/12

12:45 pm-6:40 pm

2 stops22h 55m

Helsinki-Vantaa

Wed 11/26

6:50 am-11:59 am

2 stops36h 09m

$501

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Tue 8/12

12:20 pm-6:55 pm

2 stops23h 35m

Helsinki-Vantaa

Tue 8/26

6:10 am-10:15 pm

2 stops23h 05m

$516

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Fri 11/21

6:30 pm-11:15 pm

2 stops21h 45m

Helsinki-Vantaa

Wed 11/26

12:30 pm-9:16 pm

1 stop15h 46m

$530

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Mon 10/6

10:15 pm-11:40 am

1 stop30h 25m

Helsinki-Vantaa

Wed 10/15

7:35 pm-8:20 pm

1 stop31h 45m

$584

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Mon 8/18

5:15 pm-9:20 am

2 stops33h 05m

$252

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 15 results
1
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Best time to book a flight from Key Largo to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki from Key Largo 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 Key Largo to Helsinki

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Helsinki. Price data was last updated on July 25, 2025.

The price you pay for your flight from Key Largo to Helsinki may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Key Largo to Helsinki (average of $444). Flying from Key Largo to Helsinki in June is currently the most expensive (average of $1,081). 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 KE9 to HEL?

Find hourly flight availability from Key Largo 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 July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Key Largo to Helsinki as you normally would.

How much does it cost to fly round-trip from Key Largo 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 July 31, 2025.
Read reviews from past customers who have flown Delta, Finnair, and Air France from Key Largo to Helsinki. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Turkish Airlines
7.3
Good
3,933 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

Related info for your journey

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

  • What airport do you fly into for flights to Helsinki from Key Largo?

    Helsinki-Vantaa (HEL), located 10.6 mi from the city center, is the airport you fly into when you book flights from Key Largo to Helsinki. 6 airlines have flights to Helsinki-Vantaa from Key Largo on a regular basis. Booking flights from Key Largo to Helsinki-Vantaa should not be difficult; the airport handles an average of 0 inbound flights from Key Largo per day.

  • How popular is this Key Largo to Helsinki flight route?

    Within the past month, 3 users have taken a look at flights from Key Largo to Helsinki-Vantaa.

  • What are the cheapest airlines to fly from Key Largo to Helsinki one-way?

    $439 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Finnair and Air France, with prices starting from $1,716 and $1,782, respectively.

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

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

  • How can I find direct flights from Key Largo to Helsinki?

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

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

    Yes. Cheapflights offers flight deals from Key Largo 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 Key Largo to Helsinki?

    Currently, November is the cheapest month in which you can book a flight from Key Largo to Helsinki (average of $444). Flying from Key Largo to Helsinki in June is currently the most expensive (average of $1,081). 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

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Top 6 airlines flying from Key Largo to Helsinki

Discover the top 6 airlines that operate flights from Key Largo 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$448Average$604FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$572Average$963FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$612Average$1,043FlexibilityNo cancel feeOn-time71%
FinnairCheapest$617Average$932FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$636Average$801FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$704Average$1,172FlexibilityNo cancel feeOn-time70%

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