How popular is this Key Largo to Lisbon flight route?

Flights from Key Largo to Lisbon Humberto Delgado have been viewed 110 times in the past calendar month.

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 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.

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 most popular airlines that fly from Key Largo to Lisbon?

The most popular airlines flying from Key Largo to Lisbon are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

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

Travelers have found it’s best to book a flight 58 days in advance to save up to 27% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 58 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Key Largo to Lisbon 1-2 weeks in advance for as low as $799, or $1,016 for flights within the next 24 hours.

What is the cheapest month to fly from Key Largo to Lisbon?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, February can be a great choice for travel to Lisbon. Flights to Lisbon from Key Largo in February are about $799 on average during February, but can be found for as low as $453.

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.

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.

$328+ Flights from Key Largo to Lisbon

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Key Largo to Lisbon with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

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

Search Deals

One-way flight from Key Largo to Lisbon Humberto Delgado

Search Deals

Highest demand for flights based on searches. 19% potential increase in price ($189 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

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.

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

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

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

Tue 7/111:24 amMIA - LIS

2 stops18h 31mDelta

Tue 9/309:50 amLIS - MIA

2 stops18h 23mDelta

Deal found 6/11

$672

Sat 8/3011:59 amMIA - LIS

2 stops27h 06mIberia

Wed 9/106:35 amLIS - MIA

2 stops20h 13mIberia

Deal found 6/11

$676

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

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

Tue 11/41:55 pmMIA - LIS

1 stop14h 25mMultiple Airlines

Tue 11/1810:10 amLIS - MIA

Nonstop9h 40mMultiple Airlines

Deal found 6/12

$687

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

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

Sat 8/1611:40 amMIA - LIS

1 stop18h 05mKLM

Sun 8/2412:45 pmLIS - MIA

2 stops16h 39mKLM

Deal found 6/12

$732

Wed 12/106:45 pmMIA - LIS

1 stop13h 35mLufthansa

Sun 12/213:55 pmLIS - MIA

2 stops54h 00mLufthansa

Deal found 6/11

$746

Best flights from Key Largo to Lisbon
Discover carefully curated flight deals from Key Largo to Lisbon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

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

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

Tue 11/254:40 pmMIA - LIS

2 stops15h 40mLufthansa

Sun 11/302:10 pmLIS - MIA

2 stops29h 30mLufthansa

Deal found 6/12

$670

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

Tue 7/111:24 amMIA - LIS

2 stops18h 31mDelta

Tue 9/309:50 amLIS - MIA

2 stops18h 23mDelta

Deal found 6/11

$672

Sat 8/3011:59 amMIA - LIS

2 stops27h 06mIberia

Tue 9/98:25 amLIS - MIA

2 stops17h 29mIberia

Deal found 6/11

$676

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

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

Fri 9/51:07 pmMIA - LIS

2 stops22h 53mMultiple Airlines

Wed 9/106:25 amLIS - MIA

1 stop18h 35mMultiple Airlines

Deal found 6/11

$685

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

Sat 10/47:40 pmMIA - LIS

1 stop22h 40mSWISS

Sun 10/122:30 pmLIS - MIA

2 stops32h 00mSWISS

Deal found 6/11

$715

Wed 8/2010:35 amMIA - LIS

1 stop18h 20mTurkish Airlines

Tue 9/210:55 amLIS - MIA

1 stop25h 15mTurkish Airlines

Deal found 6/9

$720

Last-minute flights from Key Largo to Lisbon
Discover last-minute flight deals from Key Largo to Lisbon. Data last updated June 12, 2025 and is based on user searches.

Tue 6/174:35 pmMIA - LIS

1 stop17h 15mAir France

Mon 6/306:50 pmLIS - MIA

1 stop24h 25mAir France

Deal found 6/10

$996

Wed 6/184:40 pmMIA - LIS

1 stop24h 25mLufthansa

Mon 7/75:05 amLIS - MIA

1 stop14h 35mLufthansa

Deal found 6/10

$1,011

Thu 6/199:40 pmMIA - LIS

1 stop32h 25mAir Canada

Thu 7/37:30 amLIS - MIA

2 stops21h 41mAir Canada

Deal found 6/10

$951

Thu 6/192:22 pmMIA - LIS

1 stop12h 58mUnited Airlines

Tue 6/2411:25 amLIS - MIA

2 stops31h 57mUnited Airlines

Deal found 6/11

$984

Fri 6/207:40 pmMIA - LIS

1 stop14h 05mSWISS

Thu 6/265:55 amLIS - MIA

1 stop16h 35mSWISS

Deal found 6/12

$1,012

Sun 6/225:15 pmMIA - LIS

2 stops41h 40mMultiple Airlines

Thu 6/268:35 pmLIS - MIA

1 stop22h 45mMultiple Airlines

Deal found 6/10

$888

Sun 6/2210:50 pmMIA - LIS

1 stop14h 00mDelta

Fri 6/2710:00 amLIS - MIA

1 stop18h 36mDelta

Deal found 6/10

$982

Sun 6/2212:35 amMIA - LIS

Nonstop8h 20mTAP AIR PORTUGAL

Wed 7/25:40 pmLIS - MIA

Nonstop9h 10mTAP AIR PORTUGAL

Deal found 6/12

$1,041

Sun 6/229:30 pmMIA - LIS

1 stop16h 45mAir Europa

Tue 6/2411:35 amLIS - MIA

1 stop12h 10mAir Europa

Deal found 6/11

$1,188

Sun 6/221:28 pmMIA - LIS

2 stops25h 37mIberia

Mon 7/78:45 pmLIS - MIA

2 stops29h 05mIberia

Deal found 6/10

$1,204

Sun 6/226:45 amMIA - LIS

1 stop21h 20mBritish Airways

Tue 6/246:35 amLIS - MIA

2 stops21h 40mBritish Airways

Deal found 6/11

$1,216

Mon 6/234:55 pmMIA - LIS

1 stop22h 10mIberia

Tue 9/168:45 pmLIS - MIA

1 stop21h 30mIberia

Deal found 6/10

$711

One-way flights from Key Largo to Lisbon
Search for one-way flight options from Key Largo to Lisbon. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Thu 7/108:30 amMIA - LIS

1 stop20h 35mMultiple Airlines

Deal found 6/11

$330

Wed 7/95:00 pmMIA - LIS

1 stop25h 10mBritish Airways

Deal found 6/11

$332

Sun 7/1311:25 amMIA - LIS

1 stop18h 20mDelta

Deal found 6/11

$333

Mon 7/147:55 amMIA - LIS

2 stops22h 10mAir Canada

Deal found 6/12

$334

Wed 7/99:45 pmMIA - LIS

1 stop18h 45mIberia

Deal found 6/11

$340

Fri 8/1512:25 amMIA - LIS

Nonstop8h 20mTAP AIR PORTUGAL

Deal found 6/10

$345

Mon 7/1410:50 pmMIA - LIS

1 stop14h 00mAir France

Deal found 6/12

$346

Tue 7/86:50 amMIA - LIS

1 stop21h 15mAmerican Airlines

Deal found 6/11

$352

Thu 7/1012:06 pmMIA - LIS

3 stops41h 59mUnited Airlines

Deal found 6/10

$400

Wed 6/257:40 pmMIA - LIS

1 stop14h 05mSWISS

Deal found 6/9

$526

Cheapflights Fare Finder

Use the filters below to find and compare flights from Key Largo to Lisbon that are best for you.

Fly from

Fly to

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

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?

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?

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?

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

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

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

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.

Delta

8.0

Very good

7,946 reviews

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

7,946 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

Air France

7.5

Good

1,463 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

SWISS

7.5

Good

1,623 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

United Airlines

7.4

Good

8,790 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

Virgin Atlantic

7.4

Good

652 reviews

Delta

8.0

Very good

7,946 reviews

Reviews

1 / 20

6.0

Good

pilar,May 2025

RSW - ATL

Related info for your journey

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?
Flights from Key Largo to Lisbon Humberto Delgado have been viewed 110 times in the past calendar month.
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

Sintra

Beja

Nazaré

Ericeira

Costa da Caparica

Evora

Torres Vedras

Oeiras

Sesimbra

Fátima

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Key Largo to Lisbon

Miami to Lisbon flights

Orlando to Lisbon flights

Tampa to Lisbon flights

Fort Lauderdale to Lisbon flights

Miami to Porto flights

West Palm Beach to Lisbon flights

Jacksonville to Lisbon flights

Orlando to Porto flights

Fort Lauderdale to Porto flights

Miami to Funchal flights

Miami to Ponta Delgada flights

Tampa to Porto flights

Miami to Faro flights

Tampa to Funchal flights

Jacksonville to Porto flights

Orlando to Ponta Delgada flights

Pensacola to Lisbon flights

Tampa to Faro flights

Fort Myers to Lisbon flights

Orlando to Funchal flights

West Palm Beach to Porto flights

Orlando to Faro flights

Sarasota to Lisbon flights

Fort Lauderdale to Faro flights

West Palm Beach to Funchal flights

West Palm Beach to Ponta Delgada flights

Tampa to Ponta Delgada flights

Fort Lauderdale to Funchal flights

Fort Myers to Ponta Delgada flights

West Palm Beach to Faro flights

Melbourne to Lisbon flights

Jacksonville to Ponta Delgada flights

Fort Lauderdale to Ponta Delgada flights

Daytona Beach to Lisbon flights

Daytona Beach to Porto flights

Fort Lauderdale to Horta flights

Tallahassee to Lisbon flights

Sarasota to Ponta Delgada flights

Sarasota to Porto flights

Valparaiso to Lisbon flights

West Palm Beach to Horta flights

Melbourne to Ponta Delgada flights

Melbourne to Porto flights

Miami to Vila do Porto flights

Miami to Horta flights

Other flights to Lisbon

Top 10 airlines flying from Key Largo to Lisbon

Airline	Cheapest	Average	Flexibility	On-time
Turkish Airlines	Cheapest$322	Average$739	FlexibilityNo cancel fee	On-time77%
Finnair	Cheapest$370	Average$673	FlexibilityNo cancel fee	On-time76%
SWISS	Cheapest$416	Average$603	FlexibilityNo cancel fee	On-time79%
Iberia	Cheapest$429	Average$766	FlexibilityNo cancel fee	On-time77%
Air Europa	Cheapest$455	Average$626	FlexibilityNo cancel fee	On-time83%
TAP AIR PORTUGAL	Cheapest$508	Average$806	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$512	Average$744	FlexibilityNo cancel fee	On-time70%
Air France	Cheapest$515	Average$754	FlexibilityNo cancel fee	On-time77%
KLM	Cheapest$529	Average$696	FlexibilityNo cancel fee	On-time75%
Virgin Atlantic	Cheapest$533	Average$730	FlexibilityNo cancel fee	On-time72%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$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.

Find cheap flights from Key Largo to Lisbon with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Key Largo to Lisbon

Cheapest flights from Key Largo to LisbonExplore 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.

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.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Key Largo to Lisbon that are best for you.

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.

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.

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

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.

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.

Rainfall in Lisbon by month

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

Temperature in Lisbon by month

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

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.

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?

How popular is this Key Largo to Lisbon flight route?

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

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

What are the cheapest flights from Key Largo to Lisbon?

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

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

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

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

Traveling to a place near Key Largo?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Key Largo to Lisbon

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Key Largo to Lisbon

100% Free

Book with Flexibility

Travel Smart

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.