Porto

$254+ Cheap flights from Key Largo, FL to Porto (OPO)

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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — OPO
Nov 26 — Dec 31
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The best prices from Key Largo to Porto are usually found in January or February, booked 87 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Cheap flight deals from Key Largo to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Key Largo (KE9) to Porto (OPO). 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 November 21, 2024.

Popular in

June

Cheapest in

January

Round-trip from

$500
(Mytrip)

One-way from

$254
(Kiwi.com)
High demand for flights, 31% potential price rise
Best time to find cheap flights, 29% potential price drop
From Key Largo to Porto
One-way flight from Key Largo to Porto

Find flight deals from Key Largo to Porto

Cheapest flights from Key Largo to Porto
Explore the most affordable flight options available from Key Largo to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This oojo deal was found by Cheapflights users on 11/21. 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.
Tue 12/310:40 pmMIA - OPO
1 stop15h 40mAir Europa
Tue 12/107:35 amOPO - MIA
1 stop18h 05mAir Europa
Deal found 11/21$506
This Air Canada deal was found by Cheapflights users on 11/21. 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.
Fri 12/68:00 amMIA - OPO
2 stops22h 40mAir Canada
Wed 12/116:00 amOPO - MIA
2 stops20h 37mAir Canada
Deal found 11/21$517
This Expedia deal was found by Cheapflights users on 11/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/64:40 pmMIA - OPO
1 stop13h 30mSWISS
Wed 12/117:25 pmOPO - MIA
1 stop27h 05mSWISS
Deal found 11/21$521
This Gotogate deal was found by Cheapflights users on 11/21. 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.
Tue 12/34:40 pmMIA - OPO
1 stop13h 35mMultiple Airlines
Tue 12/106:00 amOPO - MIA
2 stops20h 37mMultiple Airlines
Deal found 11/21$559
This United deal was found by Cheapflights users on 11/21. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/271:05 pmMIA - OPO
2 stops21h 10mUnited Airlines
Fri 12/612:30 pmOPO - MIA
2 stops35h 38mUnited Airlines
Deal found 11/21$608
This American Airlines deal was found by Cheapflights users on 11/21. 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.
Mon 12/25:20 pmMIA - OPO
1 stop17h 40mAmerican Airlines
Fri 12/68:20 amOPO - MIA
2 stops17h 42mAmerican Airlines
Deal found 11/21$646
This Gurufare deal was found by Cheapflights users on 11/21. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/285:15 pmMIA - OPO
1 stop19h 00mBritish Airways
Mon 12/25:30 pmOPO - MIA
1 stop26h 15mBritish Airways
Deal found 11/21$666
This oojo deal was found by Cheapflights users on 11/21. 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.
Thu 11/216:45 pmMIA - OPO
1 stop23h 50mLufthansa
Fri 11/296:30 amOPO - MIA
1 stop15h 25mLufthansa
Deal found 11/21$817
This Turkish Airlines deal was found by Cheapflights users on 11/20. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2510:35 pmMIA - OPO
1 stop30h 00mTurkish Airlines
Tue 12/314:25 pmOPO - MIA
1 stop19h 40mTurkish Airlines
Deal found 11/20$906
This Gotogate deal was found by Cheapflights users on 11/21. 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 12/304:30 pmMIA - OPO
1 stop20h 45mTAP AIR PORTUGAL
Mon 1/65:55 pmOPO - MIA
1 stop25h 50mTAP AIR PORTUGAL
Deal found 11/21$975
This KLM deal was found by Cheapflights users on 11/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2812:03 pmMIA - OPO
2 stops17h 27mKLM
Tue 12/311:45 amOPO - MIA
2 stops18h 08mKLM
Deal found 11/21$1,299
This Priceline deal was found by Cheapflights users on 11/20. 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 12/2410:15 pmMIA - OPO
1 stop16h 45mIberia
Thu 1/28:40 pmOPO - MIA
1 stop22h 15mIberia
Deal found 11/20$1,423

Find flights from Key Largo to Porto within your budget

Customize your flight search to find flights from Key Largo to Porto 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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MiamiPorto

MIA - OPO

MIAOPO

Miami

Wed 1/15

11:30 pm-7:20 pm

2 stops14h 50m

Porto

Tue 1/28

8:10 pm-9:45 pm

2 stops30h 35m

$500

MiamiPorto

MIA - OPO

MIAOPO

Miami

Fri 1/17

5:20 pm-11:45 am

1 stop13h 25m

Porto

Sun 1/19

12:25 pm-8:30 pm

1 stop13h 05m

$503

MiamiPorto

MIA - OPO

MIAOPO

Miami

Tue 12/3

10:40 pm-7:20 pm

1 stop15h 40m

Porto

Tue 12/10

7:35 am-8:40 pm

1 stop18h 05m

$506

MiamiPorto

MIA - OPO

MIAOPO

Miami

Fri 12/6

8:00 am-11:40 am

2 stops22h 40m

Porto

Wed 12/11

6:00 am-9:37 pm

2 stops20h 37m

$517

MiamiPorto

MIA - OPO

MIAOPO

Miami

Fri 12/6

4:40 pm-11:10 am

1 stop13h 30m

Porto

Wed 12/11

7:25 pm-5:30 pm

1 stop27h 05m

$521

MiamiPorto

MIA - OPO

MIAOPO

Miami

Thu 1/16

4:30 pm-5:15 pm

2 stops19h 45m

Porto

Wed 1/29

12:25 pm-8:30 pm

1 stop13h 05m

$522

MiamiPorto

MIA - OPO

MIAOPO

Miami

Wed 1/8

8:57 am-7:40 am

2 stops17h 43m

Porto

Wed 1/22

8:20 am-8:56 pm

2 stops17h 36m

$539

MiamiPorto

MIA - OPO

MIAOPO

Miami

Tue 2/11

12:10 pm-11:40 am

2 stops18h 30m

Porto

Mon 2/24

6:00 am-10:30 pm

3 stops21h 30m

$552

MiamiPorto

MIA - OPO

MIAOPO

Miami

Wed 3/12

12:30 am-6:00 pm

1 stop13h 30m

Porto

Thu 3/20

4:00 pm-9:45 pm

1 stop33h 45m

$568

MiamiPorto

MIA - OPO

MIAOPO

Miami

Sun 1/12

4:45 pm-11:25 am

1 stop13h 40m

Porto

Sun 1/19

5:00 am-2:50 pm

1 stop14h 50m

$582

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 19 results
1
2

Best time to book a flight from Key Largo to Porto

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Porto. Price data was last updated on November 15, 2024.

The price you pay for your flight from Key Largo to Porto may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Key Largo to Porto (average of $517). Flying from Key Largo to Porto in June is currently the most expensive (average of $993). 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 OPO?

Find hourly flight availability from Key Largo to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

When flying from Key Largo to Porto, 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 Porto?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Porto. Price data was last updated on November 18, 2024.

Travelers seeking maximum savings on their Key Largo to Porto flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Porto by month

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

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

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

If weather is an important factor for your trip to Porto, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated November 21, 2024.
Read through reviews of airlines operating flights from Key Largo to Porto, such as Air Europa, Air Canada and SWISS. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,755 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

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
8,755 reviews
8.0
Very good
8,755 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

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
1,349 reviews
8.0
Very good
8,755 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

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
1,636 reviews
8.0
Very good
8,755 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

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.

7.4
Good
9,172 reviews
8.0
Very good
8,755 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

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.

7.4
Good
3,920 reviews
8.0
Very good
8,755 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

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 Porto. 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 Porto from Key Largo?

    If you book a flight to Porto from Key Largo, you will be flying to Porto, which is the city’s only airport. Porto (OPO) is located 6.8 mi from the center of Porto. There are 0 flights from Key Largo to Porto per day from 10 different airlines.

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

    The cheapest airline one-way is Air Europa, with whom users have recently found tickets for as low as $322. However, be on the lookout for offers from TAP AIR PORTUGAL and Lufthansa, as they are both options that can get you from Key Largo to Porto for a low price.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Key Largo to Porto (average of $517). Flying from Key Largo to Porto in June is currently the most expensive (average of $993). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Key Largo to Porto

Discover the top 10 airlines that operate flights from Key Largo to Porto. 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$377Average$688FlexibilityNo cancel feeOn-time79%
TAP AIR PORTUGALCheapest$455Average$705FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$479Average$683FlexibilityNo cancel feeOn-time71%
IberiaCheapest$485Average$613FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$494Average$707FlexibilityNo cancel feeOn-time76%
Air EuropaCheapest$498Average$740FlexibilityNo cancel feeOn-time83%
DeltaCheapest$522Average$696FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$526Average$634FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$531Average$1,023FlexibilityNo cancel feeOn-time69%
Air TransatCheapest$635Average$650FlexibilityNo cancel feeOn-time50%
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