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$354+ 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SOF
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Sofia are usually found in February or November, 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 April 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$700
(Justfly.com)

One-way from

$354
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$776
Provider with most accurate pricing for Miami-Sofia flight deals.
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Provider most trusted by Cheapflights users for Miami-Sofia flights.
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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. 27% potential increase in price ($334 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/185:15 pmMIA - SOF
2 stops24h 35mMultiple Airlines
Mon 6/239:10 pmSOF - MIA
1 stop24h 10mMultiple Airlines
Deal found 4/17$716
This Justfly.com deal was found by Cheapflights users on 4/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1810:35 amMIA - SOF
1 stop15h 00mTurkish Airlines
Mon 9/19:25 amSOF - MIA
1 stop28h 45mTurkish Airlines
Deal found 4/17$722
This Justfly.com deal was found by Cheapflights users on 4/17. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/142:20 pmMIA - SOF
2 stops21h 20mAir Canada
Tue 10/286:00 amSOF - MIA
2 stops37h 02mAir Canada
Deal found 4/17$723
This Expedia deal was found by Cheapflights users on 4/17. 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.
Mon 8/187:40 pmMIA - SOF
1 stop31h 25mSWISS
Mon 9/13:30 pmSOF - MIA
1 stop33h 00mSWISS
Deal found 4/17$729
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Sat 8/94:40 pmMIA - SOF
2 stops15h 40mAustrian Airlines
Tue 8/196:55 pmSOF - MIA
2 stops26h 45mAustrian Airlines
Deal found 4/17$731
This Lufthansa deal was found by Cheapflights users on 4/17. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/315:45 pmMIA - SOF
1 stop13h 50mLufthansa
Sat 11/86:05 amSOF - MIA
1 stop17h 50mLufthansa
Deal found 4/17$745
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Mon 8/1812:06 pmMIA - SOF
2 stops27h 54mUnited Airlines
Mon 9/112:45 pmSOF - MIA
2 stops35h 45mUnited Airlines
Deal found 4/17$757
This Expedia deal was found by Cheapflights users on 4/17. 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.
Sat 9/610:30 pmMIA - SOF
2 stops37h 40mBritish Airways
Sun 9/149:10 pmSOF - MIA
1 stop24h 15mBritish Airways
Deal found 4/17$797
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Thu 5/17:05 amMIA - SOF
2 stops27h 05mITA Airways
Mon 5/512:55 pmSOF - MIA
1 stop34h 05mITA Airways
Deal found 4/17$922
This oojo deal was found by Cheapflights users on 4/17. 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.
Wed 5/217:35 pmMIA - SOF
1 stop15h 20mLOT
Mon 6/92:35 pmSOF - MIA
1 stop34h 00mLOT
Deal found 4/17$1,048
This Gurufare deal was found by Cheapflights users on 4/17. 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.
Wed 5/143:55 amMIA - SOF
2 stops35h 55mTAP AIR PORTUGAL
Thu 5/296:15 amSOF - MIA
2 stops39h 35mTAP AIR PORTUGAL
Deal found 4/17$1,281

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 April 17, 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

Wed 6/18

5:15 pm-12:50 am

2 stops24h 35m

Sofia

Mon 6/23

9:10 pm-2:20 pm

1 stop24h 10m

$716

MiamiSofia

MIA - SOF

MIASOF

Miami

Mon 8/18

10:35 am-8:35 am

1 stop15h 00m

Sofia

Mon 9/1

9:25 am-7:10 am

1 stop28h 45m

$722

MiamiSofia

MIA - SOF

MIASOF

Miami

Tue 10/14

2:20 pm-6:40 pm

2 stops21h 20m

Sofia

Tue 10/28

6:00 am-1:02 pm

2 stops37h 02m

$723

MiamiSofia

MIA - SOF

MIASOF

Miami

Mon 8/18

7:40 pm-10:05 am

1 stop31h 25m

Sofia

Mon 9/1

3:30 pm-5:30 pm

1 stop33h 00m

$729

MiamiSofia

MIA - SOF

MIASOF

Miami

Sat 8/9

4:40 pm-3:20 pm

2 stops15h 40m

Sofia

Tue 8/19

6:55 pm-2:40 pm

2 stops26h 45m

$731

MiamiSofia

MIA - SOF

MIASOF

Miami

Mon 8/18

12:06 pm-11:00 pm

2 stops27h 54m

Sofia

Mon 9/1

12:45 pm-5:30 pm

2 stops35h 45m

$757

MiamiSofia

MIA - SOF

MIASOF

Miami

Sat 9/6

10:30 pm-7:10 pm

2 stops37h 40m

Sofia

Sun 9/14

9:10 pm-2:25 pm

1 stop24h 15m

$797

MiamiSofia

MIA - SOF

MIASOF

Miami

Thu 5/1

7:05 am-5:10 pm

2 stops27h 05m

Sofia

Mon 5/5

12:55 pm-4:00 pm

1 stop34h 05m

$922

MiamiSofia

MIA - SOF

MIASOF

Miami

Thu 7/17

1:18 pm-11:00 pm

2 stops26h 42m

Sofia

Thu 8/7

6:15 am-2:40 pm

1 stop15h 25m

$1,029

MiamiSofia

MIA - SOF

MIASOF

Miami

Wed 5/21

7:35 pm-5:55 pm

1 stop15h 20m

Sofia

Mon 6/9

2:35 pm-5:35 pm

1 stop34h 00m

$1,048

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 12 results
1
2

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 April 11, 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 $1,243). 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 April 17, 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.

What is the cheapest day to fly from Key Largo to Sofia?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Sofia. Price data was last updated on April 14, 2024.

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

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 April 17, 2025.
LOT
7.6
Good
1,065 reviews

Overall

7.6

Food

7.2

Boarding

7.6

Comfort

7.5

Entertainment

7.0

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
1,065 reviews
LOT
7.6
Good
1,065 reviews

Overall

7.6

Food

7.2

Boarding

7.6

Comfort

7.5

Entertainment

7.0

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.
Austrian Airlines
7.6
Good
775 reviews
LOT
7.6
Good
1,065 reviews

Overall

7.6

Food

7.2

Boarding

7.6

Comfort

7.5

Entertainment

7.0

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
1,435 reviews
LOT
7.6
Good
1,065 reviews

Overall

7.6

Food

7.2

Boarding

7.6

Comfort

7.5

Entertainment

7.0

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
1,580 reviews
LOT
7.6
Good
1,065 reviews

Overall

7.6

Food

7.2

Boarding

7.6

Comfort

7.5

Entertainment

7.0

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
8,667 reviews
LOT
7.6
Good
1,065 reviews

Overall

7.6

Food

7.2

Boarding

7.6

Comfort

7.5

Entertainment

7.0

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.

  • 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 $1,243). 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 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Austrian AirlinesCheapest$598Average$857FlexibilityNo cancel feeOn-time78%
Turkish AirlinesCheapest$648Average$986FlexibilityNo cancel feeOn-time77%
LOTCheapest$662Average$1,093FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$671Average$1,025FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$679Average$938FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$688Average$1,145FlexibilityNo cancel feeOn-time76%
SWISSCheapest$876Average$1,134FlexibilityNo cancel feeOn-time79%

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