Portugal

$242+ Cheap flights from Key Largo, FL to Portugal

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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LIS
Jan 26 — Feb 21
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Cheap flight deals from Key Largo to Portugal

Discover tips and strategies to find the most affordable flight options for your journey from Key Largo (KE9) to Portugal (PT0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$442
(Mytrip)

One-way from

$242
(Kiwi.com)
From Key Largo to Portugal
One-way flight from Key Largo to Portugal

Find flight deals from Key Largo to Portugal

Cheapest flights from Key Largo to Portugal
Explore the most affordable flight options available from Key Largo to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/269:45 pmMIA - OPO
1 stop28h 05mAir Europa
Sun 2/97:35 amOPO - MIA
1 stop16h 50mAir Europa
Deal found 1/20$442
This Mytrip deal was found by Cheapflights users on 1/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/134:30 pmMIA - OPO
1 stop21h 30mTAP AIR PORTUGAL
Wed 5/289:15 pmOPO - MIA
1 stop22h 30mTAP AIR PORTUGAL
Deal found 1/21$452
This Booking.com deal was found by Cheapflights users on 1/20. 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.
Mon 2/38:00 amMIA - OPO
2 stops22h 15mAir Canada
Tue 2/186:00 amOPO - MIA
2 stops34h 21mAir Canada
Deal found 1/20$494
This Mytrip deal was found by Cheapflights users on 1/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2411:30 pmMIA - OPO
2 stops18h 40mMultiple Airlines
Thu 2/63:25 pmOPO - MIA
2 stops34h 20mMultiple Airlines
Deal found 1/21$496
This American Airlines deal was found by Cheapflights users on 1/21. 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.
Tue 1/283:36 pmMIA - LIS
2 stops12h 39mAmerican Airlines
Tue 2/412:30 pmLIS - MIA
1 stop13h 00mAmerican Airlines
Deal found 1/21$503
This FlightHub deal was found by Cheapflights users on 1/20. 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.
Tue 3/47:35 pmMIA - OPO
2 stops33h 55mScandinavian Airlines
Mon 3/1010:55 amOPO - MIA
1 stop35h 50mScandinavian Airlines
Deal found 1/20$505
This Priceline deal was found by Cheapflights users on 1/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/285:15 pmMIA - LIS
1 stop13h 50mMultiple Airlines
Tue 2/48:20 amLIS - MIA
2 stops17h 36mMultiple Airlines
Deal found 1/20$507
This Air Canada deal was found by Cheapflights users on 1/21. 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 12/107:50 amMIA - LIS
2 stops20h 30mAir Canada
Tue 12/1611:00 amLIS - MIA
2 stops29h 41mAir Canada
Deal found 1/21$508
This oojo deal was found by Cheapflights users on 1/21. 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.
Fri 10/109:30 pmMIA - LIS
1 stop16h 45mAir Europa
Tue 10/2111:35 amLIS - MIA
1 stop12h 10mAir Europa
Deal found 1/21$509
This Gotogate deal was found by Cheapflights users on 1/21. 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 5/124:35 pmMIA - LIS
Nonstop8h 20mTAP AIR PORTUGAL
Thu 5/2910:35 amLIS - MIA
Nonstop9h 10mTAP AIR PORTUGAL
Deal found 1/21$516
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Mon 2/38:55 amMIA - OPO
2 stops17h 45mAmerican Airlines
Tue 2/188:20 amOPO - MIA
1 stop17h 10mAmerican Airlines
Deal found 1/20$519
This lol.travel deal was found by Cheapflights users on 1/20. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2411:30 pmMIA - FAO
1 stop19h 20mTAP AIR PORTUGAL
Thu 2/66:05 amFAO - MIA
1 stop13h 40mTAP AIR PORTUGAL
Deal found 1/20$520

Find flights from Key Largo to Portugal within your budget

Customize your flight search to find flights from Key Largo to Portugal 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MiamiPorto

MIA - OPO

MIAOPO

Miami

Mon 2/3

9:45 pm-3:15 pm

1 stop12h 30m

Porto

Tue 2/18

11:35 am-7:25 pm

1 stop12h 50m

$448

MiamiPorto

MIA - OPO

MIAOPO

Miami

Tue 5/13

4:30 pm-7:00 pm

1 stop21h 30m

Porto

Wed 5/28

9:15 pm-2:45 pm

1 stop22h 30m

$452

MiamiPorto

MIA - OPO

MIAOPO

Miami

Mon 2/3

8:00 am-11:15 am

2 stops22h 15m

Porto

Tue 2/18

6:00 am-11:21 am

2 stops34h 21m

$494

MiamiPorto

MIA - OPO

MIAOPO

Miami

Fri 2/14

9:45 pm-8:00 am

1 stop29h 15m

Porto

Wed 2/19

7:45 am-8:00 pm

1 stop17h 15m

$498

MiamiLisbon

MIA - LIS

MIALIS

Miami

Thu 2/13

9:45 pm-7:15 pm

1 stop16h 30m

Lisbon Humberto Delgado

Sun 2/16

8:00 am-7:25 pm

1 stop16h 25m

$507

MiamiLisbon

MIA - LIS

MIALIS

Miami

Wed 2/5

7:45 am-9:20 am

1 stop20h 35m

Lisbon Humberto Delgado

Sun 2/9

10:50 am-1:02 pm

2 stops31h 12m

$508

MiamiLisbon

MIA - LIS

MIALIS

Miami

Wed 3/5

4:25 pm-5:45 pm

2 stops20h 20m

Lisbon Humberto Delgado

Wed 3/12

6:30 am-4:45 pm

1 stop14h 15m

$516

MiamiLisbon

MIA - LIS

MIALIS

Miami

Wed 2/12

10:15 pm-11:25 pm

1 stop20h 10m

Lisbon Humberto Delgado

Wed 2/19

8:20 am-8:59 pm

2 stops17h 39m

$517

MiamiLisbon

MIA - LIS

MIALIS

Miami

Mon 3/3

7:45 am-9:20 am

1 stop20h 35m

Lisbon Humberto Delgado

Wed 3/12

3:25 pm-6:30 pm

1 stop31h 05m

$518

MiamiPorto

MIA - OPO

MIAOPO

Miami

Mon 2/3

8:55 am-7:40 am

2 stops17h 45m

Porto

Tue 2/18

8:20 am-8:30 pm

1 stop17h 10m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 60 results
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Best time to book a flight from Key Largo to Portugal

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

Travel insights for flights from Key Largo to Portugal

Get recent, data-driven insights about flights from Key Largo to Portugal including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Key Largo to Portugal (average of $612). Flying from Key Largo to Portugal in June is currently the most expensive (average of $1,247). 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 PT?

Find hourly flight availability from Key Largo to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

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

Rainfall in Portugal by month

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

In terms of precipitation, rainfall in Portugal 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 Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

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

If weather is an important factor for your trip to Portugal, 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 Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated January 21, 2025.
To help decide which airline to fly from Key Largo to Portugal, see what other customers have to say about United Airlines, Air Canada and SWISS. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,521 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

8.0
Very good
8,521 reviews
8.0
Very good
8,521 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.8
Good
1,341 reviews
8.0
Very good
8,521 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.6
Good
1,286 reviews
8.0
Very good
8,521 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.5
Good
1,600 reviews
8.0
Very good
8,521 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.5
Good
665 reviews
8.0
Very good
8,521 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Portugal. 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 Portugal flight route?

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

    The cheapest airlines for a one-way flight from Key Largo to Portugal are Delta ($268), Virgin Atlantic ($269), and Vueling ($270).

  • What are the most popular routes from Key Largo to Portugal?

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

    Before booking your flight to Portugal from Key Largo, check out the most reliable airlines to get you to your destination on time: Etihad Airways (67%), JetBlue (60%), Emirates( 60%).

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

    The cheapest flight price from Key Largo to Portugal is $297. On average you can expect to pay $1,556. The most popular route, (Miami - Lisbon Humberto Delgado), can usually be booked for $423.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Key Largo to Portugal (average of $612). Flying from Key Largo to Portugal in June is currently the most expensive (average of $1,247). 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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Alternative routes for Key Largo to Portugal

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

Top 10 airlines flying from Key Largo to Portugal

Discover the top 10 airlines that operate flights from Key Largo to Portugal. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest$370Average$682FlexibilityNo cancel feeOn-time76%
SWISSCheapest$377Average$634FlexibilityNo cancel feeOn-time79%
TAP AIR PORTUGALCheapest$455Average$847FlexibilityNo cancel feeOn-timeN/A
Air EuropaCheapest$471Average$717FlexibilityNo cancel feeOn-time83%
VuelingCheapest$472Average$526FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$479Average$841FlexibilityNo cancel feeOn-time71%
IberiaCheapest$490Average$728FlexibilityNo cancel feeOn-time77%
Royal Air MarocCheapest$493Average$583FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$494Average$718FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$517Average$913FlexibilityNo cancel feeOn-time69%
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