Lisbon

$269+ 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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LIS
Jul 7 — Jul 141
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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 July 2, 2025.

Round-trip from

$576
(Cheapflightsfares)

One-way from

$269
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$999
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 ($195 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 July 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 July 2, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/2. 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.
Wed 10/15:00 pmMIA - LIS
1 stop16h 05mBritish Airways
Sat 10/116:55 pmLIS - MIA
1 stop24h 35mBritish Airways
Deal found 7/2$576
This Delta deal was found by Cheapflights users on 7/2. 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.
Sat 11/17:55 pmMIA - LIS
1 stop33h 05mDelta
Sat 11/1511:25 amLIS - MIA
1 stop32h 25mDelta
Deal found 7/2$581
This Air Canada deal was found by Cheapflights users on 7/2. 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.
Fri 11/218:00 amMIA - LIS
2 stops20h 20mAir Canada
Thu 11/275:00 amLIS - MIA
2 stops20h 16mAir Canada
Deal found 7/2$582
This CrystalTravel deal was found by Cheapflights users on 7/1. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/119:30 pmMIA - LIS
1 stop12h 45mAir Europa
Tue 9/167:40 amLIS - MIA
1 stop16h 05mAir Europa
Deal found 7/1$583
This Booking.com deal was found by Cheapflights users on 7/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/207:55 amMIA - LIS
2 stops22h 10mMultiple Airlines
Tue 8/263:45 pmLIS - MIA
1 stop30h 45mMultiple Airlines
Deal found 7/2$584
This SWISS deal was found by Cheapflights users on 7/2. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:50 pmMIA - LIS
1 stop13h 45mSWISS
Tue 11/251:35 pmLIS - MIA
2 stops32h 55mSWISS
Deal found 7/2$595
This United Airlines deal was found by Cheapflights users on 7/1. 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 7/3010:47 amMIA - LIS
2 stops17h 33mUnited Airlines
Fri 8/2212:20 pmLIS - MIA
2 stops31h 50mUnited Airlines
Deal found 7/1$596
This Iberia deal was found by Cheapflights users on 7/1. 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.
Tue 8/511:55 amMIA - LIS
2 stops14h 50mIberia
Mon 8/188:25 amLIS - MIA
1 stop33h 35mIberia
Deal found 7/1$600
This KLM deal was found by Cheapflights users on 7/1. 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.
Thu 8/73:10 pmMIA - LIS
1 stop11h 50mKLM
Wed 8/2012:45 pmLIS - MIA
2 stops16h 39mKLM
Deal found 7/1$603
This Cheapflightsfares deal was found by Cheapflights users on 6/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/174:30 pmMIA - LIS
Nonstop8h 20mTAP AIR PORTUGAL
Fri 8/295:35 pmLIS - MIA
Nonstop9h 10mTAP AIR PORTUGAL
Deal found 6/30$615

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 July 2, 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 10/9

9:30 pm-3:15 pm

1 stop12h 45m

Lisbon Humberto Delgado

Sun 10/19

11:35 am-6:45 pm

1 stop12h 10m

$571

MiamiLisbon

MIA - LIS

MIALIS

Miami

Wed 10/1

5:00 pm-2:05 pm

1 stop16h 05m

Lisbon Humberto Delgado

Sat 10/11

6:55 pm-2:30 pm

1 stop24h 35m

$576

MiamiLisbon

MIA - LIS

MIALIS

Miami

Sat 11/1

7:55 pm-9:00 am

1 stop33h 05m

Lisbon Humberto Delgado

Sat 11/15

11:25 am-2:50 pm

1 stop32h 25m

$581

MiamiLisbon

MIA - LIS

MIALIS

Miami

Fri 11/21

8:00 am-9:20 am

2 stops20h 20m

Lisbon Humberto Delgado

Thu 11/27

5:00 am-8:16 pm

2 stops20h 16m

$582

MiamiLisbon

MIA - LIS

MIALIS

Miami

Tue 8/12

7:55 am-10:45 am

2 stops21h 50m

Lisbon Humberto Delgado

Wed 8/20

8:05 pm-5:30 pm

2 stops26h 25m

$593

MiamiLisbon

MIA - LIS

MIALIS

Miami

Thu 11/13

7:50 pm-2:35 pm

1 stop13h 45m

Lisbon Humberto Delgado

Wed 11/26

1:35 pm-2:40 pm

2 stops30h 05m

$595

MiamiLisbon

MIA - LIS

MIALIS

Miami

Wed 7/30

10:47 am-9:20 am

2 stops17h 33m

Lisbon Humberto Delgado

Fri 8/22

12:20 pm-3:10 pm

2 stops31h 50m

$596

MiamiLisbon

MIA - LIS

MIALIS

Miami

Tue 8/5

11:55 am-7:45 am

2 stops14h 50m

Lisbon Humberto Delgado

Mon 8/18

8:25 am-1:00 pm

1 stop33h 35m

$600

MiamiLisbon

MIA - LIS

MIALIS

Miami

Thu 8/7

3:10 pm-8:00 am

1 stop11h 50m

Lisbon Humberto Delgado

Fri 8/22

12:45 pm-12:24 am

2 stops16h 39m

$603

MiamiLisbon

MIA - LIS

MIALIS

Miami

Mon 8/18

4:35 pm-5:50 am

Nonstop8h 15m

Lisbon Humberto Delgado

Fri 8/29

5:35 pm-9:45 pm

Nonstop9h 10m

$615

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 17 results
1
2

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 27, 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 $1,130). 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 July 2, 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.

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 July 2, 2025.

The most flights from KE9 to LIS are scheduled on a Monday (3 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 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 July 2, 2025.
Read reviews from past customers who have flown Delta, KLM, and SWISS 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

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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.
8.0
Very good
8.0
Very good

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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.
8.0
Very good

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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.
8.0
Very good

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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.
8.0
Very good

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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.
8.0
Very good

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

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 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 Iberia. According to our data, you can fly for as low as $270. Users have also found prices from $272 and $286 on TAP AIR PORTUGAL and Delta, 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 (84%), TAP AIR PORTUGAL (80%) or JetBlue (71%) 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 $1,648, our data shows the cheapest flight currently is $233. When looking at the most popular route, (Miami - Lisbon Humberto Delgado), you can expect to pay $422 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 $1,130). 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
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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest$370Average$659FlexibilityNo cancel feeOn-time76%
IberiaCheapest$406Average$764FlexibilityNo cancel feeOn-time77%
SWISSCheapest$416Average$618FlexibilityNo cancel feeOn-time79%
Air EuropaCheapest$455Average$624FlexibilityNo cancel feeOn-time83%
KLMCheapest$479Average$683FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$512Average$734FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$529Average$756FlexibilityNo cancel feeOn-time67%
Virgin AtlanticCheapest$533Average$730FlexibilityNo cancel feeOn-time72%
Air FranceCheapest$539Average$752FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$541Average$738FlexibilityNo cancel feeOn-time69%

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