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$349+ Cheap flights from Key Largo, FL to Lucerne, Switzerland

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 — ZRH
Jun 18 — Jun 251
Wed 6/18
Wed 6/25
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Lucerne are usually found in November or October, booked 86 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Key Largo to Lucerne

Keep the following information in mind while searching for Key Largo to Lucerne flight deals. Data was last updated June 13, 2025.

Round-trip from

$683
(United Airlines)

One-way from

$349
(TAP AIR PORTUGAL)

Popular in

June

Cheapest in

November

Average price

$1,416
From Key Largo to Lucerne
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One-way flight from Key Largo to Lucerne
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Highest demand for flights based on searches. 20% potential increase in price ($245 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Key Largo to Lucerne

Cheapest flights from Key Largo to Lucerne
Explore the most affordable flight options available from Key Largo to Lucerne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2025.

This United Airlines deal was found by Cheapflights users on 6/13. 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.
Fri 8/151:35 pmMIA - ZRH
2 stops21h 50mUnited Airlines
Sat 8/231:05 pmZRH - MIA
2 stops28h 15mUnited Airlines
Deal found 6/13$683
This Air Canada deal was found by Cheapflights users on 6/12. 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.
Thu 8/217:55 amMIA - ZRH
2 stops20h 15mAir Canada
Sat 9/612:40 pmZRH - MIA
1 stop30h 40mAir Canada
Deal found 6/12$684
This Gotogate deal was found by Cheapflights users on 6/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/252:20 pmMIA - ZRH
1 stop33h 50mMultiple Airlines
Mon 9/291:05 pmZRH - MIA
Nonstop10h 25mMultiple Airlines
Deal found 6/13$688
This Gotogate deal was found by Cheapflights users on 6/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1410:05 pmMIA - ZRH
1 stop11h 35mCondor
Mon 7/288:00 amZRH - MIA
1 stop17h 55mCondor
Deal found 6/13$690
This Iberia deal was found by Cheapflights users on 6/10. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2411:50 amMIA - ZRH
2 stops25h 10mIberia
Tue 9/167:30 amZRH - MIA
1 stop13h 35mIberia
Deal found 6/10$691
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/64:35 pmMIA - ZRH
1 stop11h 50mDelta
Sun 8/179:20 amZRH - MIA
2 stops21h 04mDelta
Deal found 6/10$706
This Scandinavian Airlines deal was found by Cheapflights users on 6/11. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/278:30 amMIA - ZRH
2 stops20h 10mScandinavian Airlines
Sat 11/18:25 pmZRH - MIA
2 stops30h 39mScandinavian Airlines
Deal found 6/11$717
This oojo deal was found by Cheapflights users on 6/12. 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 9/244:30 pmMIA - ZRH
2 stops16h 35mTAP AIR PORTUGAL
Sun 10/56:10 amZRH - MIA
1 stop22h 00mTAP AIR PORTUGAL
Deal found 6/12$718
This Turkish Airlines deal was found by Cheapflights users on 6/10. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2910:15 pmMIA - ZRH
1 stop18h 05mTurkish Airlines
Wed 9/177:40 amZRH - MIA
1 stop18h 40mTurkish Airlines
Deal found 6/10$728
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/47:40 pmMIA - ZRH
Nonstop9h 10mSWISS
Wed 8/201:05 pmZRH - MIA
Nonstop10h 25mSWISS
Deal found 6/11$737
This Lufthansa deal was found by Cheapflights users on 6/11. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/284:40 pmMIA - ZRH
1 stop11h 30mLufthansa
Sun 1/48:20 pmZRH - MIA
2 stops48h 20mLufthansa
Deal found 6/11$740
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Sat 8/161:37 pmMIA - ZRH
2 stops13h 13mAmerican Airlines
Mon 8/2511:45 amZRH - MIA
2 stops16h 00mAmerican Airlines
Deal found 6/12$745

Cheapflights Fare Finder

Customize your flight search to find flights from Key Largo to Lucerne 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 June 13, 2025.
Use the filters below to find and compare flights from Key Largo to Lucerne that are best for you.

Fly from

Key Largo

Fly to

Lucerne

Route

Depart

Return

Price

MiamiZurich

MIA - ZRH

MIAZRH

Miami

Fri 8/15

1:35 pm-5:25 pm

2 stops21h 50m

Zurich

Sat 8/23

1:05 pm-11:20 am

2 stops28h 15m

$683

MiamiZurich

MIA - ZRH

MIAZRH

Miami

Thu 8/21

7:55 am-10:10 am

2 stops20h 15m

Zurich

Sat 9/6

12:40 pm-1:20 pm

1 stop30h 40m

$684

MiamiZurich

MIA - ZRH

MIAZRH

Miami

Thu 9/25

2:20 pm-6:10 am

1 stop33h 50m

Zurich

Mon 9/29

1:05 pm-5:30 pm

Nonstop10h 25m

$688

MiamiZurich

MIA - ZRH

MIAZRH

Miami

Mon 7/14

10:05 pm-3:40 pm

1 stop11h 35m

Zurich

Mon 7/28

8:00 am-7:55 pm

1 stop17h 55m

$690

MiamiZurich

MIA - ZRH

MIAZRH

Miami

Sun 8/24

11:50 am-7:00 pm

2 stops25h 10m

Zurich

Tue 9/16

7:30 am-3:05 pm

1 stop13h 35m

$691

MiamiZurich

MIA - ZRH

MIAZRH

Miami

Wed 8/6

4:35 pm-10:25 am

1 stop11h 50m

Zurich

Sun 8/17

9:20 am-12:24 am

2 stops21h 04m

$706

MiamiZurich

MIA - ZRH

MIAZRH

Miami

Mon 10/27

8:30 am-9:40 am

2 stops20h 10m

Zurich

Sat 11/1

8:25 pm-10:04 pm

2 stops30h 39m

$717

MiamiZurich

MIA - ZRH

MIAZRH

Miami

Wed 9/24

3:55 am-10:30 pm

1 stop12h 35m

Zurich

Mon 9/29

3:45 pm-2:45 pm

2 stops29h 00m

$718

MiamiZurich

MIA - ZRH

MIAZRH

Miami

Fri 8/29

10:15 pm-10:20 pm

1 stop18h 05m

Zurich

Thu 9/18

7:40 am-8:20 pm

1 stop18h 40m

$728

MiamiZurich

MIA - ZRH

MIAZRH

Miami

Mon 8/4

7:40 pm-10:50 am

Nonstop9h 10m

Zurich

Wed 8/20

1:05 pm-5:30 pm

Nonstop10h 25m

$737

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 26 results
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Best time to book a flight from Key Largo to Lucerne

Have a flexible travel schedule? Discover the best time to fly to Lucerne 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 Lucerne

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Lucerne. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from Key Largo to Lucerne, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Key Largo to Lucerne (average of $637). Flying from Key Largo to Lucerne in June is currently the most expensive (average of $1,182). 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 LU9?

Find hourly flight availability from Key Largo to Lucerne. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 13, 2025.

When flying from Key Largo to Lucerne, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Key Largo to Lucerne?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Lucerne. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Key Largo to Lucerne flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Key Largo to Lucerne

Explore weekly flight availability from Key Largo to Lucerne. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 13, 2025.

The most flights from KE9 to LU9 are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Lucerne by month

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

In terms of precipitation, rainfall in Lucerne ranges from 2.5 - 5.0 inches per month. June is typically the wettest month, when rainfall can reach 5.0 in. January is typically the driest time to visit Lucerne when rainfall is around 2.5 in.

Temperature in Lucerne by month

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

If weather is an important factor for your trip to Lucerne, 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 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Lucerne

Get insights into the airlines that provide service to Lucerne. 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 Lucerne. Reviews last updated June 13, 2025.
To help decide which airline to fly from Key Largo to Lucerne, see what other customers have to say about Delta, Austrian Airlines and Finnair. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

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.
Austrian Airlines
7.6
Good
802 reviews
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

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
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

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.
Cathay Pacific
7.6
Good
892 reviews
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

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.
SWISS
7.5
Good
1,624 reviews
Delta
8.0
Very good
7,950 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

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 Lucerne. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Within the past month, 61 users have taken a look at flights from Key Largo to Lucerne.

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

    One-way options have recently been found by users for as low as $349 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Lufthansa from $359 and Vueling from $361 one-way.

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

    On average you can expect to pay $4,668 for a flight from Key Largo to Lucerne. The cheapest flight overall is $341 while the most popular route, (Miami - Zurich) is currently priced at $457.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Key Largo to Lucerne (average of $637). Flying from Key Largo to Lucerne in June is currently the most expensive (average of $1,182). 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

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Top 10 airlines flying from Key Largo to Lucerne

Discover the top 10 airlines that operate flights from Key Largo to Lucerne. 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 June 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$400Average$924FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$444Average$575FlexibilityNo cancel feeOn-time77%
VuelingCheapest$462Average$566FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$481Average$993FlexibilityNo cancel feeOn-time71%
Air EuropaCheapest$496Average$683FlexibilityNo cancel feeOn-time83%
British AirwaysCheapest$526Average$1,031FlexibilityNo cancel feeOn-time70%
DeltaCheapest$531Average$1,252FlexibilityNo cancel feeOn-timeN/A
CondorCheapest$557Average$671FlexibilityNo cancel feeOn-time76%
IberiaCheapest$618Average$646FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$637Average$671FlexibilityNo cancel feeOn-time77%

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