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$420+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — HEL
May 4 — May 111
Sun 5/4
Sun 5/11
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 Saturday or Wednesday and return on a Tuesday

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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$677
(oojo)

One-way from

$420
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$935
Provider with most accurate pricing for Miami-Helsinki-Vantaa flight deals.
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Provider most trusted by Cheapflights users for Miami-Helsinki-Vantaa flights.
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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. 21% potential increase in price ($254 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 29, 2025.

This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/207:45 pmMIA - HEL
1 stop21h 20mScandinavian Airlines
Sun 11/304:05 pmHEL - MIA
1 stop32h 50mScandinavian Airlines
Deal found 4/29$622
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/410:35 amMIA - HEL
1 stop18h 05mTurkish Airlines
Mon 9/157:35 pmHEL - MIA
1 stop31h 45mTurkish Airlines
Deal found 4/29$715
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/175:20 pmMIA - HEL
1 stop14h 20mMultiple Airlines
Sun 6/225:05 pmHEL - MIA
1 stop28h 15mMultiple Airlines
Deal found 4/29$842
This Air Canada deal was found by Cheapflights users on 4/28. 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.
Sat 8/29:40 pmMIA - HEL
2 stops32h 10mAir Canada
Thu 8/146:10 amHEL - MIA
2 stops24h 06mAir Canada
Deal found 4/28$954
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 7/304:16 pmMIA - HEL
2 stops19h 39mUnited Airlines
Thu 8/146:10 amHEL - MIA
1 stop15h 30mUnited Airlines
Deal found 4/28$962
This oojo deal was found by Cheapflights users on 4/29. 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 9/33:55 amMIA - HEL
1 stop36h 20mTAP AIR PORTUGAL
Mon 9/157:05 amHEL - MIA
2 stops38h 40mTAP AIR PORTUGAL
Deal found 4/29$993
This Lufthansa deal was found by Cheapflights users on 4/28. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/304:40 pmMIA - HEL
2 stops19h 15mLufthansa
Tue 8/125:40 pmHEL - MIA
1 stop28h 00mLufthansa
Deal found 4/28$1,022
This oojo deal was found by Cheapflights users on 4/29. 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.
Mon 12/1510:25 amMIA - HEL
2 stops19h 35mIcelandair
Mon 12/297:10 amHEL - MIA
2 stops44h 45mIcelandair
Deal found 4/29$1,051
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/164:35 pmMIA - HEL
1 stop17h 05mDelta
Thu 6/266:35 amHEL - MIA
2 stops21h 59mDelta
Deal found 4/29$1,103
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/305:30 pmMIA - HEL
1 stop14h 30mAmerican Airlines
Tue 6/35:15 pmHEL - MIA
1 stop22h 52mAmerican Airlines
Deal found 4/29$1,115
This British Airways deal was found by Cheapflights users on 4/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/245:15 pmMIA - HEL
1 stop14h 05mBritish Airways
Sat 5/319:05 pmHEL - MIA
1 stop26h 45mBritish Airways
Deal found 4/29$1,117
This Finnair deal was found by Cheapflights users on 4/29. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/156:15 pmMIA - HEL
Nonstop9h 35mFinnair
Mon 12/2912:25 pmHEL - MIA
Nonstop11h 05mFinnair
Deal found 4/29$1,146

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 April 29, 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

Thu 9/4

10:35 am-11:40 am

1 stop18h 05m

Helsinki-Vantaa

Mon 9/15

7:35 pm-8:20 pm

1 stop31h 45m

$715

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Thu 9/4

7:30 am-3:25 pm

2 stops24h 55m

Helsinki-Vantaa

Mon 9/15

6:35 am-11:13 pm

2 stops23h 38m

$840

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Tue 6/17

5:20 pm-2:40 pm

1 stop14h 20m

Helsinki-Vantaa

Sun 6/22

5:05 pm-2:20 pm

1 stop28h 15m

$842

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Sat 8/2

9:40 pm-12:50 pm

2 stops32h 10m

Helsinki-Vantaa

Wed 8/13

6:10 am-11:16 pm

2 stops24h 06m

$954

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Wed 7/30

4:16 pm-6:55 pm

2 stops19h 39m

Helsinki-Vantaa

Wed 8/13

6:10 am-2:40 pm

1 stop15h 30m

$962

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Wed 9/3

3:55 am-11:15 pm

1 stop36h 20m

Helsinki-Vantaa

Mon 9/15

7:05 am-2:45 pm

2 stops38h 40m

$993

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Wed 7/30

4:40 pm-6:55 pm

2 stops19h 15m

Helsinki-Vantaa

Tue 8/12

5:40 pm-2:40 pm

1 stop28h 00m

$1,022

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Fri 5/30

2:30 pm-2:00 pm

2 stops16h 30m

Helsinki-Vantaa

Tue 6/3

3:00 pm-1:15 pm

2 stops29h 15m

$1,100

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Mon 6/16

4:35 pm-4:40 pm

1 stop17h 05m

Helsinki-Vantaa

Thu 6/26

6:35 am-9:34 pm

2 stops21h 59m

$1,103

MiamiHelsinki

MIA - HEL

MIAHEL

Miami

Fri 5/30

5:30 pm-3:00 pm

1 stop14h 30m

Helsinki-Vantaa

Tue 6/3

5:15 pm-9:07 am

1 stop22h 52m

$1,115

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 21 results
1
2
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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 April 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 $1,085). 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 April 29, 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.

Rainfall in Helsinki by month

Plan your trip to Helsinki by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Helsinki ranges from 1.2 - 2.8 inches per month. August is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Helsinki when rainfall is around 1.2 in.

Temperature in Helsinki by month

Plan your trip to Helsinki by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Helsinki, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

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 April 29, 2025.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Turkish Airlines
7.3
Good
3,788 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Scandinavian Airlines
7.3
Good
1,349 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

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?

    $585 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on TAP AIR PORTUGAL and Finnair, with prices starting from $1,026 and $1,161, respectively.

  • What are the most reliable airlines from Key Largo to Helsinki?

    No one likes to see their flight delayed. When booking a flight from Key Largo to Helsinki consider choosing American Airlines (48%), Finnair (48%) or Iberia (48%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Key Largo to Helsinki?

    The cheapest flight price from Key Largo to Helsinki is $1,138. On average you can expect to pay $4,055. The most popular route, (Miami - Helsinki-Vantaa), can usually be booked for $677.

  • 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 $1,085). 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 Key Largo?

Book flights to Key Largo 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$447Average$603FlexibilityNo cancel feeOn-time77%
FinnairCheapest$629Average$1,148FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$636Average$701FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$690Average$1,005FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$704Average$1,126FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$741Average$1,068FlexibilityNo cancel feeOn-time71%

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