Lisbon

$288+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LIS
Oct 15 — Oct 221
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Cheapflights Tip: The best prices from Key Largo to Lisbon Humberto Delgado are usually found in February or November, booked 86 days in advance, depart on a Wednesday or Monday 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 September 15, 2025.

Round-trip from

$482
(eDestinos)

One-way from

$288
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$790
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 ($186 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Average for round-trip flights in September 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 September 15, 2025.

This eDestinos deal was found by Cheapflights users on 9/14. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/710:00 pmMIA - LIS
1 stop14h 55mMultiple Airlines
Tue 11/186:30 amLIS - MIA
1 stop14h 15mMultiple Airlines
Deal found 9/14$482
This Ovago deal was found by Cheapflights users on 9/14. 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.
Thu 10/239:30 pmMIA - LIS
1 stop12h 45mAir Europa
Wed 11/128:00 amLIS - MIA
1 stop16h 30mAir Europa
Deal found 9/14$483
This Ovago deal was found by Cheapflights users on 9/14. 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.
Sun 11/239:40 pmMIA - LIS
1 stop30h 25mBritish Airways
Fri 12/511:05 amLIS - MIA
1 stop15h 30mBritish Airways
Deal found 9/14$484
This Air Canada deal was found by Cheapflights users on 9/14. 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 11/198:00 amMIA - LIS
2 stops19h 55mAir Canada
Tue 12/911:20 amLIS - MIA
2 stops34h 22mAir Canada
Deal found 9/14$485
This Delta deal was found by Cheapflights users on 9/15. 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 11/54:35 pmMIA - LIS
2 stops19h 55mDelta
Wed 11/195:30 amLIS - MIA
2 stops19h 10mDelta
Deal found 9/15$486
This Ovago deal was found by Cheapflights users on 9/14. 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.
Sun 11/210:30 pmMIA - LIS
1 stop16h 35mBritish Airways
Mon 11/106:45 pmLIS - MIA
1 stop31h 00mBritish Airways
Deal found 9/14$487
This Delta deal was found by Cheapflights users on 9/14. 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 11/35:25 pmMIA - LIS
2 stops16h 45mDelta
Wed 11/1211:25 amLIS - MIA
2 stops18h 23mDelta
Deal found 9/14$488
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Sun 10/2612:51 pmMIA - LIS
1 stop17h 24mUnited Airlines
Tue 11/45:00 amLIS - MIA
1 stop14h 40mUnited Airlines
Deal found 9/13$489
This Gurufare deal was found by Cheapflights users on 9/14. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/237:00 amMIA - LIS
2 stops28h 30mScandinavian Airlines
Sat 12/68:05 amLIS - MIA
1 stop39h 00mScandinavian Airlines
Deal found 9/14$490
This CheapOair deal was found by Cheapflights users on 9/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:20 pmMIA - LIS
1 stop15h 35mMultiple Airlines
Wed 11/265:00 amLIS - MIA
1 stop14h 40mMultiple Airlines
Deal found 9/13$491
This Air Canada deal was found by Cheapflights users on 9/14. 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 11/198:00 amMIA - LIS
2 stops19h 55mAir Canada
Fri 12/511:20 amLIS - MIA
2 stops34h 22mAir Canada
Deal found 9/14$492
This British Airways deal was found by Cheapflights users on 9/14. 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.
Thu 10/235:05 pmMIA - LIS
1 stop11h 00mBritish Airways
Tue 11/48:45 pmLIS - MIA
1 stop22h 00mBritish Airways
Deal found 9/14$494

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 September 15, 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

Wed 11/5

6:15 pm-5:30 pm

2 stops18h 15m

Lisbon Humberto Delgado

Wed 11/19

5:30 am-7:40 pm

2 stops19h 10m

$486

MiamiLisbon

MIA - LIS

MIALIS

Miami

Tue 12/16

5:35 pm-9:15 am

1 stop10h 40m

Lisbon Humberto Delgado

Tue 12/23

11:10 am-6:30 pm

1 stop12h 20m

$486

MiamiLisbon

MIA - LIS

MIALIS

Miami

Wed 11/12

11:42 am-11:20 am

2 stops18h 38m

Lisbon Humberto Delgado

Wed 11/26

5:30 am-9:31 pm

2 stops21h 01m

$486

MiamiLisbon

MIA - LIS

MIALIS

Miami

Wed 10/22

5:25 pm-2:50 pm

2 stops16h 25m

Lisbon Humberto Delgado

Wed 11/5

5:30 am-9:27 pm

2 stops20h 57m

$486

MiamiLisbon

MIA - LIS

MIALIS

Miami

Tue 2/10

8:05 am-8:00 am

2 stops18h 55m

Lisbon Humberto Delgado

Fri 3/13

10:00 am-9:26 am

2 stops27h 26m

$486

MiamiLisbon

MIA - LIS

MIALIS

Miami

Wed 2/18

3:35 pm-8:00 am

1 stop11h 25m

Lisbon Humberto Delgado

Wed 3/25

5:30 am-11:31 pm

2 stops22h 01m

$492

MiamiLisbon

MIA - LIS

MIALIS

Miami

Fri 1/9

2:38 pm-7:55 am

1 stop12h 17m

Lisbon Humberto Delgado

Fri 2/6

6:30 am-3:45 pm

1 stop14h 15m

$494

MiamiLisbon

MIA - LIS

MIALIS

Miami

Tue 10/14

12:05 pm-9:00 am

2 stops15h 55m

Lisbon Humberto Delgado

Tue 10/21

5:00 am-8:00 pm

2 stops20h 00m

$518

MiamiLisbon

MIA - LIS

MIALIS

Miami

Thu 11/27

11:35 am-8:00 am

2 stops15h 25m

Lisbon Humberto Delgado

Wed 12/3

11:15 am-12:46 am

2 stops18h 31m

$521

MiamiLisbon

MIA - LIS

MIALIS

Miami

Thu 11/27

12:36 pm-8:00 am

2 stops14h 24m

Lisbon Humberto Delgado

Thu 12/4

10:00 am-9:27 am

2 stops28h 27m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 22 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 September 12, 2025.

Booking 86 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 $1,127). 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 September 15, 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 December 16, 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 afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Key Largo to Lisbon

Explore weekly flight availability from Key Largo to Lisbon. 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 September 15, 2025.

The most flights from KE9 to LIS are scheduled on a Monday (6 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

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 September 15, 2025.
Read reviews from past customers who have flown Delta, JetBlue, and TAP AIR PORTUGAL from Key Largo to Lisbon. 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.
8.0
Very good

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

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.
8.0
Very good
8.0
Very good

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

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.
8.0
Very good

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

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.
8.0
Very good

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

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.
8.0
Very good

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

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.
8.0
Very good

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

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 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 3 inbound flights from Key Largo per day. You should also have plenty of airline options to choose from since 19 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?

  • How long is the flight from Key Largo to Lisbon?

    Delta can get you from Key Largo to Lisbon in just under 18h 15m. Your travel time can differ by up to . There are 4146 mi between Key Largo and Lisbon.

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

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $297. Users have also found prices from $298 and $301 on SWISS and American Airlines, 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 (56%), JetBlue (49%) or TAP AIR PORTUGAL (49%) 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 $1,319, our data shows the cheapest flight currently is $163. When looking at the most popular route, (Miami - Lisbon Humberto Delgado), you can expect to pay $392 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 $1,127). 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 Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Fátima
Oeiras
Beja
Nazaré
Ericeira
Costa da Caparica
Torres Vedras
Sesimbra
Colares

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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest$370Average$659FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$371Average$458FlexibilityNo cancel feeOn-time77%
IberiaCheapest$406Average$688FlexibilityNo cancel feeOn-time77%
SWISSCheapest$416Average$595FlexibilityNo cancel feeOn-time79%
TAP AIR PORTUGALCheapest$439Average$853FlexibilityNo cancel feeOn-timeN/A
Air EuropaCheapest$453Average$611FlexibilityNo cancel feeOn-time83%
KLMCheapest$479Average$672FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$494Average$733FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$508Average$772FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$510Average$715FlexibilityNo cancel feeOn-time69%

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