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$279+ Cheap flights from Key Largo, FL to Sofia (SOF)

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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SOF
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Sofia are usually found in November or February, booked 52 days in advance, depart on a Wednesday or Sunday and return on a Wednesday

Cheap flight deals from Key Largo to Sofia

Keep the following information in mind while searching for Key Largo to Sofia flight deals. Data was last updated junio 12, 2025.

Round-trip from

$665
(FlightHub)

One-way from

$279
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$1,257
From Key Largo to Sofia
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One-way flight from Key Largo to Sofia
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Highest demand for flights based on searches. 25% potential increase in price ($291 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Key Largo to Sofia

Cheapest flights from Key Largo to Sofia
Explore the most affordable flight options available from Key Largo to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This FlightHub deal was found by Cheapflights users on 6/12. 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.
dom. 8/1010:35 amMIA - SOF
1 stop26h 50mTurkish Airlines
mié. 9/39:25 amSOF - MIA
1 stop17h 55mTurkish Airlines
Deal found 6/12$665
This FlightHub deal was found by Cheapflights users on 6/12. 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.
lun. 8/117:30 pmMIA - SOF
1 stop33h 35mITA Airways
lun. 9/112:55 pmSOF - MIA
1 stop34h 05mITA Airways
Deal found 6/12$666
This KLM deal was found by Cheapflights users on 6/12. 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.
lun. 8/412:46 pmMIA - SOF
2 stops18h 14mMultiple Airlines
mar. 8/197:00 amSOF - MIA
1 stop20h 50mMultiple Airlines
Deal found 6/12$668
This Air Canada deal was found by Cheapflights users on 6/12. 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.
sáb. 8/29:40 pmMIA - SOF
2 stops30h 35mAir Canada
mar. 8/266:00 amSOF - MIA
2 stops38h 11mAir Canada
Deal found 6/12$670
This Air France deal was found by Cheapflights users on 6/12. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/45:30 amMIA - SOF
2 stops25h 30mAir France
mar. 8/197:00 amSOF - MIA
2 stops21h 28mAir France
Deal found 6/12$680
This United Airlines deal was found by Cheapflights users on 6/12. 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.
lun. 8/47:00 amMIA - SOF
2 stops33h 00mUnited Airlines
lun. 8/258:00 amSOF - MIA
2 stops34h 20mUnited Airlines
Deal found 6/12$681
This LOT deal was found by Cheapflights users on 6/12. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/87:35 pmMIA - SOF
1 stop15h 20mLOT
lun. 8/256:40 pmSOF - MIA
1 stop29h 55mLOT
Deal found 6/12$705
This Gurufare deal was found by Cheapflights users on 6/11. 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.
sáb. 11/810:40 pmMIA - SOF
1 stop34h 40mBritish Airways
sáb. 11/2212:05 pmSOF - MIA
1 stop33h 40mBritish Airways
Deal found 6/11$721
This Gotogate deal was found by Cheapflights users on 6/10. 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.
mié. 12/106:45 pmMIA - SOF
1 stop16h 35mLufthansa
mié. 12/246:15 amSOF - MIA
1 stop15h 25mLufthansa
Deal found 6/10$746
This SWISS deal was found by Cheapflights users on 6/10. 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.
dom. 9/147:40 pmMIA - SOF
1 stop33h 50mSWISS
mar. 10/1412:45 pmSOF - MIA
2 stops35h 45mSWISS
Deal found 6/10$756

Cheapflights Fare Finder

Customize your flight search to find flights from Key Largo to Sofia 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 junio 12, 2025.
Use the filters below to find and compare flights from Key Largo to Sofia that are best for you.

Fly from

Key Largo

Fly to

Sofia

Route

Depart

Return

Price

MiamiSofia

MIA - SOF

MIASOF

Miami

dom. 8/10

10:35 am-8:25 pm

1 stop26h 50m

Sofia

mié. 9/3

9:25 am-8:20 pm

1 stop17h 55m

$665

MiamiSofia

MIA - SOF

MIASOF

Miami

lun. 8/11

7:30 pm-12:05 pm

1 stop33h 35m

Sofia

lun. 9/1

12:55 pm-4:00 pm

1 stop34h 05m

$666

MiamiSofia

MIA - SOF

MIASOF

Miami

lun. 8/4

12:46 pm-2:00 pm

2 stops18h 14m

Sofia

mar. 8/19

7:00 am-8:50 pm

1 stop20h 50m

$668

MiamiSofia

MIA - SOF

MIASOF

Miami

sáb. 8/2

9:40 pm-11:15 am

2 stops30h 35m

Sofia

mar. 8/26

6:00 am-1:11 pm

2 stops38h 11m

$670

MiamiSofia

MIA - SOF

MIASOF

Miami

lun. 8/4

5:30 am-2:00 pm

2 stops25h 30m

Sofia

mar. 8/19

7:00 am-9:28 pm

2 stops21h 28m

$680

MiamiSofia

MIA - SOF

MIASOF

Miami

lun. 8/4

7:00 am-11:00 pm

2 stops33h 00m

Sofia

lun. 8/25

8:00 am-11:20 am

2 stops34h 20m

$681

MiamiSofia

MIA - SOF

MIASOF

Miami

vie. 8/8

7:35 pm-5:55 pm

1 stop15h 20m

Sofia

lun. 8/25

6:40 pm-5:35 pm

1 stop29h 55m

$705

MiamiSofia

MIA - SOF

MIASOF

Miami

sáb. 11/8

10:40 pm-4:20 pm

1 stop34h 40m

Sofia

sáb. 11/22

12:05 pm-2:45 pm

1 stop33h 40m

$721

MiamiSofia

MIA - SOF

MIASOF

Miami

dom. 9/14

7:40 pm-12:30 pm

1 stop33h 50m

Sofia

mar. 10/14

12:45 pm-5:30 pm

2 stops35h 45m

$756

MiamiSofia

MIA - SOF

MIASOF

Miami

mié. 9/17

1:25 pm-5:50 pm

2 stops21h 25m

Sofia

lun. 10/13

1:50 pm-2:40 pm

1 stop31h 50m

$786

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 17 results
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Best time to book a flight from Key Largo to Sofia

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

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Sofia. Price data was last updated on June 9, 2025.

The best time to book flights from Key Largo to Sofia is 52 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Key Largo to Sofia (average of $632). Flying from Key Largo to Sofia in June is currently the most expensive (average of $1,203). 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 SOF?

Find hourly flight availability from Key Largo to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

When flying from Key Largo to Sofia, 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 Sofia by month

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

In terms of precipitation, rainfall in Sofia ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Sofia when rainfall is around 1.2 in.

Temperature in Sofia by month

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

If weather is an important factor for your trip to Sofia, 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 30.2 F).

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. 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 Sofia. Reviews last updated junio 12, 2025.
Get a feel of what it's like to fly with LOT, Air France and SWISS from Key Largo to Sofia by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
LOT
7.6
Good
1,077 reviews

Food

7.2

Overall

7.6

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.
LOT
7.6
Good
1,077 reviews
LOT
7.6
Good
1,077 reviews

Food

7.2

Overall

7.6

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.
Air France
7.5
Good
1,463 reviews
LOT
7.6
Good
1,077 reviews

Food

7.2

Overall

7.6

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.
SWISS
7.5
Good
1,623 reviews
LOT
7.6
Good
1,077 reviews

Food

7.2

Overall

7.6

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.
United Airlines
7.4
Good
8,790 reviews
LOT
7.6
Good
1,077 reviews

Food

7.2

Overall

7.6

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.
Turkish Airlines
7.3
Good
3,848 reviews
LOT
7.6
Good
1,077 reviews

Food

7.2

Overall

7.6

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Sofia. 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 Sofia from Key Largo?

    For a flight from Key Largo to Sofia, you will be flying into Sofia. Sofia (SOF) is just 4.2 mi from the center of the city. Sofia is the only Sofia airport and it handles 0 inbound flights from Key Largo per day. 7 airlines have flights to Sofia from Key Largo on a regular basis.

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

    To fly one-way, consider booking your trip with Turkish Airlines, which is currently one of the cheapest options available, starting at $403. TAP AIR PORTUGAL flights start at $462 while deals on British Airways start at $475 one-way.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Key Largo to Sofia (average of $632). Flying from Key Largo to Sofia in June is currently the most expensive (average of $1,203). 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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Top 7 airlines flying from Key Largo to Sofia

Discover the top 7 airlines that operate flights from Key Largo to Sofia. 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$528Average$766FlexibilityNo cancel feeOn-time70%
Austrian AirlinesCheapest$598Average$857FlexibilityNo cancel feeOn-time78%
Turkish AirlinesCheapest$642Average$944FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$651Average$1,103FlexibilityNo cancel feeOn-time76%
SWISSCheapest$653Average$964FlexibilityNo cancel feeOn-time79%
LOTCheapest$662Average$1,093FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$669Average$1,104FlexibilityNo cancel feeOn-time69%

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