Lisbon

$328+ Cheap flights from Key Largo, FL to Lisbon (LIS)

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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LIS
Jun 17 — Jun 241
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Cheapflights Tip: The best prices from Key Largo to Lisbon Humberto Delgado are usually found in February or November, booked 57 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Key Largo to Lisbon

Keep the following information in mind while searching for Key Largo to Lisbon flight deals. Data was last updated June 12, 2025.

Round-trip from

$667
(Cheapflightsfares)

One-way from

$330
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,085
From Key Largo to Lisbon Humberto Delgado
One-way flight from Key Largo to Lisbon Humberto Delgado
Highest demand for flights based on searches. 19% potential increase in price ($189 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Average for round-trip flights in June 2025

Find flight deals from Key Largo to Lisbon

Cheapest flights from Key Largo to Lisbon
Explore the most affordable flight options available from Key Largo to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/217:55 amMIA - LIS
2 stops22h 10mAir Canada
Sat 8/309:50 amLIS - MIA
2 stops15h 56mAir Canada
Deal found 6/11$667
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/11:35 pmMIA - LIS
1 stop15h 55mUnited Airlines
Thu 8/285:05 amLIS - MIA
1 stop14h 35mUnited Airlines
Deal found 6/12$668
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1712:35 amMIA - LIS
Nonstop8h 20mTAP AIR PORTUGAL
Wed 9/1710:35 amLIS - MIA
Nonstop9h 10mTAP AIR PORTUGAL
Deal found 6/10$671
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/111:24 amMIA - LIS
2 stops18h 31mDelta
Tue 9/309:50 amLIS - MIA
2 stops18h 23mDelta
Deal found 6/11$672
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3011:59 amMIA - LIS
2 stops27h 06mIberia
Wed 9/106:35 amLIS - MIA
2 stops20h 13mIberia
Deal found 6/11$676
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/28:45 pmMIA - LIS
1 stop21h 25mBritish Airways
Wed 7/911:05 amLIS - MIA
1 stop15h 38mBritish Airways
Deal found 6/11$677
This Air Europa 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 Air Europa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/49:30 pmMIA - LIS
1 stop16h 45mAir Europa
Sun 9/711:35 amLIS - MIA
1 stop12h 10mAir Europa
Deal found 6/11$681
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/41:55 pmMIA - LIS
1 stop14h 25mMultiple Airlines
Tue 11/1810:10 amLIS - MIA
Nonstop9h 40mMultiple Airlines
Deal found 6/12$687
This Virgin Atlantic 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/48:11 amMIA - LIS
2 stops21h 34mVirgin Atlantic
Wed 8/1312:45 pmLIS - MIA
2 stops16h 39mVirgin Atlantic
Deal found 6/10$702
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/110:15 pmMIA - LIS
1 stop36h 15mTurkish Airlines
Thu 8/285:55 amLIS - MIA
1 stop30h 15mTurkish Airlines
Deal found 6/11$712
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1611:40 amMIA - LIS
1 stop18h 05mKLM
Sun 8/2412:45 pmLIS - MIA
2 stops16h 39mKLM
Deal found 6/12$732
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.
Wed 12/106:45 pmMIA - LIS
1 stop13h 35mLufthansa
Sun 12/213:55 pmLIS - MIA
2 stops54h 00mLufthansa
Deal found 6/11$746

Cheapflights Fare Finder

Customize your flight search to find flights from Key Largo to Lisbon 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 12, 2025.
Use the filters below to find and compare flights from Key Largo to Lisbon that are best for you.

Fly from

Key Largo

Fly to

Lisbon

Route

Depart

Return

Price

MiamiLisbon

MIA - LIS

MIALIS

Miami

Thu 8/21

7:55 am-11:05 am

2 stops22h 10m

Lisbon Humberto Delgado

Sat 8/30

9:50 am-8:46 pm

2 stops15h 56m

$667

MiamiLisbon

MIA - LIS

MIALIS

Miami

Fri 8/1

1:35 pm-10:30 am

1 stop15h 55m

Lisbon Humberto Delgado

Thu 8/28

5:05 am-2:40 pm

1 stop14h 35m

$668

MiamiLisbon

MIA - LIS

MIALIS

Miami

Sun 8/17

12:35 am-1:55 pm

Nonstop8h 20m

Lisbon Humberto Delgado

Wed 9/17

10:35 am-2:45 pm

Nonstop9h 10m

$671

MiamiLisbon

MIA - LIS

MIALIS

Miami

Tue 7/1

11:24 am-10:55 am

2 stops18h 31m

Lisbon Humberto Delgado

Tue 9/30

9:50 am-11:13 pm

2 stops18h 23m

$672

MiamiLisbon

MIA - LIS

MIALIS

Miami

Sat 8/30

11:59 am-8:05 pm

2 stops27h 06m

Lisbon Humberto Delgado

Wed 9/10

6:35 am-9:48 pm

2 stops20h 13m

$676

MiamiLisbon

MIA - LIS

MIALIS

Miami

Wed 7/2

8:45 pm-11:10 pm

1 stop21h 25m

Lisbon Humberto Delgado

Wed 7/9

11:05 am-9:43 pm

1 stop15h 38m

$677

MiamiLisbon

MIA - LIS

MIALIS

Miami

Thu 9/4

9:30 pm-3:15 pm

1 stop12h 45m

Lisbon Humberto Delgado

Sat 9/6

11:35 am-6:45 pm

1 stop12h 10m

$681

MiamiLisbon

MIA - LIS

MIALIS

Miami

Tue 11/4

1:55 pm-9:20 am

1 stop14h 25m

Lisbon Humberto Delgado

Tue 11/18

10:10 am-2:50 pm

Nonstop9h 40m

$687

MiamiLisbon

MIA - LIS

MIALIS

Miami

Mon 8/4

12:46 pm-10:45 am

2 stops16h 59m

Lisbon Humberto Delgado

Wed 8/13

12:45 pm-11:35 pm

2 stops15h 50m

$702

MiamiLisbon

MIA - LIS

MIALIS

Miami

Wed 8/20

10:15 pm-3:30 pm

1 stop36h 15m

Lisbon Humberto Delgado

Thu 9/4

5:55 am-8:20 pm

1 stop19h 25m

$720

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 23 results
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Best time to book a flight from Key Largo to Lisbon

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

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

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

Booking 57 days in advance of your planned departure date is, on average, the best time to get cheap flights from Key Largo to Lisbon. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Key Largo to Lisbon (average of $612). Flying from Key Largo to Lisbon in June is currently the most expensive (average of $1,136). 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 LIS?

Find hourly flight availability from Key Largo to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Key Largo to Lisbon, 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 Lisbon?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Lisbon. Price data was last updated on June 30, 2024.

Travelers seeking maximum savings on their Key Largo to Lisbon flight should consider departing on Friday mornings 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.

Rainfall in Lisbon by month

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

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

Temperature in Lisbon by month

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

If weather is an important factor for your trip to Lisbon, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. 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 Lisbon. Reviews last updated June 12, 2025.
Read reviews from past customers who have flown Delta, Air France and SWISS from Key Largo to Lisbon. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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.
8.0
Very good
8.0
Very good

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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.
8.0
Very good

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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.
8.0
Very good

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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.
8.0
Very good

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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.
8.0
Very good

Food

7.3

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

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 Lisbon. 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 Lisbon from Key Largo?

    Lisbon Humberto Delgado (LIS) is the airport you will fly into if you book a flight from Key Largo to Lisbon. You should not have trouble finding flights to Humberto Delgado from Key Largo; the airport handles an average of 2 inbound flights from Key Largo per day. You should also have plenty of airline options to choose from since 18 airlines have flights to the Lisbon airport from Key Largo. It is only a 4.2 mi journey from Humberto Delgado (LIS) to Lisbon’s city center.

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

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

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as $332. Users have also found prices from $333 and $334 on Delta and Air Canada, respectively.

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

    No one likes to see their flight delayed. When booking a flight from Key Largo to Lisbon consider choosing Emirates (85%), JetBlue (64%) or TAP AIR PORTUGAL (63%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Key Largo to Lisbon is generally $2,454, our data shows the cheapest flight currently is $244. When looking at the most popular route, (Miami - Lisbon Humberto Delgado), you can expect to pay $458 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Key Largo to Lisbon (average of $612). Flying from Key Largo to Lisbon in June is currently the most expensive (average of $1,136). 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
Sintra
Beja
Nazaré
Ericeira
Costa da Caparica
Evora
Torres Vedras
Oeiras
Sesimbra
Fátima

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Key Largo to Lisbon

Discover the top 10 airlines that operate flights from Key Largo to Lisbon. 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$322Average$739FlexibilityNo cancel feeOn-time77%
FinnairCheapest$370Average$673FlexibilityNo cancel feeOn-time76%
SWISSCheapest$416Average$603FlexibilityNo cancel feeOn-time79%
IberiaCheapest$429Average$766FlexibilityNo cancel feeOn-time77%
Air EuropaCheapest$455Average$626FlexibilityNo cancel feeOn-time83%
TAP AIR PORTUGALCheapest$508Average$806FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$512Average$744FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$515Average$754FlexibilityNo cancel feeOn-time77%
KLMCheapest$529Average$696FlexibilityNo cancel feeOn-time75%
Virgin AtlanticCheapest$533Average$730FlexibilityNo cancel feeOn-time72%

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