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$333+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SOF
Apr 7 — Apr 141
Mon 4/7
Mon 4/14
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 2, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$575
(Kiwi.com)

One-way from

$333
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$839
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 ($340 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 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 2, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/1. 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 5/215:15 pmMIA - SOF
1 stop26h 15mMultiple Airlines
Wed 6/47:15 pmSOF - MIA
1 stop26h 05mMultiple Airlines
Deal found 4/1$630
This British Airways deal was found by Cheapflights users on 4/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/135:00 pmMIA - SOF
1 stop20h 40mBritish Airways
Wed 11/263:00 pmSOF - MIA
1 stop30h 45mBritish Airways
Deal found 4/1$660
This KLM deal was found by Cheapflights users on 4/1. 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.
Wed 5/1411:28 amMIA - SOF
2 stops19h 32mKLM
Thu 11/277:00 amSOF - MIA
2 stops19h 31mKLM
Deal found 4/1$661
This oojo deal was found by Cheapflights users on 4/2. 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 9/2310:15 pmMIA - SOF
1 stop27h 20mTurkish Airlines
Tue 10/219:25 amSOF - MIA
1 stop17h 55mTurkish Airlines
Deal found 4/2$693
This Air Canada deal was found by Cheapflights users on 4/2. 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.
Tue 9/231:40 pmMIA - SOF
2 stops22h 00mAir Canada
Tue 10/146:20 amSOF - MIA
2 stops37h 30mAir Canada
Deal found 4/2$705
This Lufthansa deal was found by Cheapflights users on 4/2. 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.
Sun 9/214:40 pmMIA - SOF
1 stop23h 10mLufthansa
Wed 10/156:15 amSOF - MIA
1 stop15h 25mLufthansa
Deal found 4/2$720
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Tue 4/226:22 amMIA - SOF
2 stops33h 38mUnited Airlines
Tue 5/66:20 amSOF - MIA
1 stop15h 20mUnited Airlines
Deal found 4/1$722
This SWISS deal was found by Cheapflights users on 4/2. 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.
Sun 9/217:40 pmMIA - SOF
1 stop33h 50mSWISS
Tue 10/211:15 pmSOF - MIA
1 stop35h 15mSWISS
Deal found 4/2$760
This Aeromexico deal was found by Cheapflights users on 4/1. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/91:03 pmMIA - SOF
2 stops41h 57mAir France
Tue 8/197:00 amSOF - MIA
2 stops25h 00mAir France
Deal found 4/1$848
This oojo deal was found by Cheapflights users on 4/1. 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.
Sat 8/97:35 pmMIA - SOF
1 stop35h 15mLOT
Tue 8/196:40 pmSOF - MIA
1 stop29h 55mLOT
Deal found 4/1$850
This American Airlines deal was found by Cheapflights users on 4/1. 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.
Wed 6/187:35 pmMIA - SOF
1 stop34h 55mAmerican Airlines
Mon 6/238:00 pmSOF - MIA
1 stop27h 45mAmerican Airlines
Deal found 4/1$892

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 2, 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 5/21

5:15 pm-2:30 am

1 stop26h 15m

Sofia

Wed 6/4

7:15 pm-2:20 pm

1 stop26h 05m

$630

MiamiSofia

MIA - SOF

MIASOF

Miami

Tue 5/13

5:00 pm-8:40 pm

1 stop20h 40m

Sofia

Wed 11/26

3:00 pm-2:45 pm

1 stop30h 45m

$660

MiamiSofia

MIA - SOF

MIASOF

Miami

Wed 5/14

11:28 am-2:00 pm

2 stops19h 32m

Sofia

Thu 11/27

7:00 am-7:31 pm

2 stops19h 31m

$661

MiamiSofia

MIA - SOF

MIASOF

Miami

Tue 9/23

10:15 pm-8:35 am

1 stop27h 20m

Sofia

Tue 10/21

9:25 am-8:20 pm

1 stop17h 55m

$693

MiamiSofia

MIA - SOF

MIASOF

Miami

Tue 9/23

1:40 pm-6:40 pm

2 stops22h 00m

Sofia

Tue 10/14

6:20 am-12:50 pm

2 stops37h 30m

$705

MiamiSofia

MIA - SOF

MIASOF

Miami

Sun 9/21

4:40 pm-10:50 pm

1 stop23h 10m

Sofia

Wed 10/15

6:15 am-2:40 pm

1 stop15h 25m

$720

MiamiSofia

MIA - SOF

MIASOF

Miami

Tue 4/22

6:22 am-11:00 pm

2 stops33h 38m

Sofia

Tue 5/6

6:20 am-2:40 pm

1 stop15h 20m

$722

MiamiSofia

MIA - SOF

MIASOF

Miami

Sun 9/21

7:40 pm-12:30 pm

1 stop33h 50m

Sofia

Tue 10/21

1:15 pm-5:30 pm

1 stop35h 15m

$760

MiamiSofia

MIA - SOF

MIASOF

Miami

Sat 8/9

1:03 pm-2:00 pm

2 stops41h 57m

Sofia

Tue 8/19

7:00 am-1:00 am

2 stops25h 00m

$848

MiamiSofia

MIA - SOF

MIASOF

Miami

Sat 8/9

7:35 pm-1:50 pm

1 stop35h 15m

Sofia

Tue 8/19

6:40 pm-5:35 pm

1 stop29h 55m

$850

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 15 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 March 28, 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 2, 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 2, 2025.
KLM
7.8
Good
1,323 reviews

Entertainment

7.2

Overall

7.8

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,323 reviews
KLM
7.8
Good
1,323 reviews

Entertainment

7.2

Overall

7.8

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
LOT
7.6
Good
1,065 reviews
KLM
7.8
Good
1,323 reviews

Entertainment

7.2

Overall

7.8

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Austrian Airlines
7.6
Good
771 reviews
KLM
7.8
Good
1,323 reviews

Entertainment

7.2

Overall

7.8

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
SWISS
7.5
Good
1,572 reviews
KLM
7.8
Good
1,323 reviews

Entertainment

7.2

Overall

7.8

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
United Airlines
7.4
Good
8,616 reviews
KLM
7.8
Good
1,323 reviews

Entertainment

7.2

Overall

7.8

Boarding

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

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 Lufthansa, which is currently one of the cheapest options available, starting at $562. SWISS flights start at $895 while deals on ITA Airways start at $1,692 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 $1,243). 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

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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 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Austrian AirlinesCheapest$598Average$857FlexibilityNo cancel feeOn-time78%
Turkish AirlinesCheapest$649Average$969FlexibilityNo cancel feeOn-time77%
LOTCheapest$662Average$1,084FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$671Average$1,025FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$679Average$938FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$691Average$1,142FlexibilityNo cancel feeOn-time76%
SWISSCheapest$876Average$1,173FlexibilityNo cancel feeOn-time79%

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