Bulgaria

$409+ Cheap flights from Key Largo, FL to Bulgaria

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 12/28. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SOF
Jan 17 — Jan 241
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Cheap flight deals from Key Largo to Bulgaria

Cheapest flights from Key Largo to Bulgaria
Explore the most affordable flight options available from Key Largo to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Booking.com deal was found by Cheapflights users on 12/16. 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.
Tue 12/3010:30 pmMIA - SOF
1 stop33h 40mTurkish Airlines
Tue 1/64:00 pmSOF - MIA
1 stop35h 35mTurkish Airlines
Deal found 12/16$705
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/304:40 pmMIA - SOF
1 stop14h 05mUnited Airlines
Tue 1/66:00 amSOF - MIA
2 stops38h 30mUnited Airlines
Deal found 12/16$956
This FlightHub deal was found by Cheapflights users on 12/16. 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.
Sun 12/287:35 pmMIA - SOF
1 stop15h 15mLOT
Tue 1/62:35 pmSOF - MIA
1 stop34h 00mLOT
Deal found 12/16$1,075
This FlightHub deal was found by Cheapflights users on 12/16. 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.
Mon 12/297:35 pmMIA - SOF
1 stop35h 15mLOT
Tue 1/62:35 pmSOF - MIA
1 stop34h 00mLOT
Deal found 12/16$1,100
This Kiwi.com deal was found by Cheapflights users on 12/16. 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.
Mon 12/2910:30 pmMIA - SOF
1 stop29h 30mMultiple Airlines
Tue 1/65:20 pmSOF - MIA
2 stops56h 35mMultiple Airlines
Deal found 12/16$1,134
This Mytrip deal was found by Cheapflights users on 12/16. 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 12/307:50 pmMIA - SOF
2 stops19h 30mMultiple Airlines
Tue 1/63:00 pmSOF - MIA
2 stops33h 35mMultiple Airlines
Deal found 12/16$1,176
This Mytrip deal was found by Cheapflights users on 12/16. 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 12/289:10 amMIA - SOF
2 stops20h 50mMultiple Airlines
Tue 1/63:00 pmSOF - MIA
2 stops33h 35mMultiple Airlines
Deal found 12/16$1,178
This Ovago deal was found by Cheapflights users on 12/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/194:40 pmMIA - SOF
1 stop34h 35mMultiple Airlines
Sun 1/117:05 pmSOF - MIA
1 stop28h 50mMultiple Airlines
Deal found 12/17$1,191

Find flight deals from Key Largo to Bulgaria

Keep the following information in mind while searching for Key Largo to Bulgaria flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$587
(FlightHub)

One-way from

$409
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$1,141
Provider with most accurate pricing for Miami-Sofia flight deals.
Provider most trusted by Cheapflights users for Miami-Sofia flights.
From Key Largo to Bulgaria
One-way flight from Key Largo to Bulgaria
Highest demand for flights based on searches. 24% potential increase in price ($269 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Average for round-trip flights in December 2025

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Bulgaria 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 December 18, 2025.
Use the filters below to find and compare flights from Key Largo to Bulgaria that are best for you.

Fly from

Key Largo

Fly to

Bulgaria

Route

Depart

Return

Price

MiamiSofia

MIA - SOF

MIASOF

Miami

Tue 2/10

10:30 pm-8:45 am

1 stop27h 15m

Sofia

Wed 2/18

9:40 pm-8:35 pm

1 stop29h 55m

$587

MiamiSofia

MIA - SOF

MIASOF

Miami

Sun 2/8

9:45 pm-9:00 pm

1 stop16h 15m

Sofia

Mon 2/23

11:15 pm-8:00 pm

2 stops51h 45m

$593

MiamiSofia

MIA - SOF

MIASOF

Miami

Sun 2/8

10:30 pm-3:10 pm

1 stop33h 40m

Sofia

Mon 2/23

9:35 am-8:35 pm

1 stop18h 00m

$612

MiamiSofia

MIA - SOF

MIASOF

Miami

Wed 4/15

10:30 pm-8:15 pm

1 stop14h 45m

Sofia

Wed 4/22

3:50 pm-8:35 pm

1 stop35h 45m

$630

MiamiSofia

MIA - SOF

MIASOF

Miami

Tue 2/10

12:35 pm-1:15 pm

2 stops17h 40m

Sofia

Wed 2/18

6:10 am-2:40 pm

1 stop15h 30m

$636

MiamiSofia

MIA - SOF

MIASOF

Miami

Wed 4/15

1:30 pm-12:10 pm

2 stops15h 40m

Sofia

Fri 4/24

6:20 am-2:40 pm

1 stop15h 20m

$636

MiamiSofia

MIA - SOF

MIASOF

Miami

Wed 4/15

1:30 pm-12:10 pm

2 stops15h 40m

Sofia

Wed 4/22

6:10 am-5:05 pm

1 stop17h 55m

$637

MiamiSofia

MIA - SOF

MIASOF

Miami

Thu 4/16

10:35 am-3:00 pm

1 stop21h 25m

Sofia

Fri 4/24

9:35 am-8:35 pm

1 stop18h 00m

$637

MiamiSofia

MIA - SOF

MIASOF

Miami

Wed 4/15

1:30 pm-12:10 pm

2 stops15h 40m

Sofia

Thu 4/23

6:10 am-5:05 pm

1 stop17h 55m

$637

MiamiSofia

MIA - SOF

MIASOF

Miami

Tue 2/10

7:50 pm-6:20 pm

2 stops15h 30m

Sofia

Wed 2/18

2:00 pm-2:40 pm

2 stops31h 40m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 34 results
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Best time to book a flight from Key Largo to Bulgaria

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

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

Currently, January is the cheapest month in which you can book a flight from Key Largo to Bulgaria (average of $358). Flying from Key Largo to Bulgaria in May is currently the most expensive (average of $832). 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 BG?

Find hourly flight availability from Key Largo to Bulgaria. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 34% on flights from Key Largo to Bulgaria by exploring options for tickets in the evening.

Reviews of airlines servicing Bulgaria

Get insights into the airlines that provide service to Bulgaria. 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 Bulgaria. Reviews last updated December 18, 2025.
Peruse reviews from past customers who have flown with LOT, SWISS, and United Airlines from Key Largo to Bulgaria to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.1

Boarding

7.6

Entertainment

6.9

Crew

8.2

Overall

7.5

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Goh Hua Sheng,Dec 2025

WAW - KRK

even though it was only a one hour flight the cabin crew were polite and detail oriented

Food

7.1

Boarding

7.6

Entertainment

6.9

Crew

8.2

Overall

7.5

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Goh Hua Sheng,Dec 2025

WAW - KRK

even though it was only a one hour flight the cabin crew were polite and detail oriented

Food

7.1

Boarding

7.6

Entertainment

6.9

Crew

8.2

Overall

7.5

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Goh Hua Sheng,Dec 2025

WAW - KRK

even though it was only a one hour flight the cabin crew were polite and detail oriented

Food

7.1

Boarding

7.6

Entertainment

6.9

Crew

8.2

Overall

7.5

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Goh Hua Sheng,Dec 2025

WAW - KRK

even though it was only a one hour flight the cabin crew were polite and detail oriented

Food

7.1

Boarding

7.6

Entertainment

6.9

Crew

8.2

Overall

7.5

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Goh Hua Sheng,Dec 2025

WAW - KRK

even though it was only a one hour flight the cabin crew were polite and detail oriented

Food

7.1

Boarding

7.6

Entertainment

6.9

Crew

8.2

Overall

7.5

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Goh Hua Sheng,Dec 2025

WAW - KRK

even though it was only a one hour flight the cabin crew were polite and detail oriented

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Bulgaria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Key Largo to Bulgaria?

    Turkish Airlines and United Airlines can get you from Key Largo to Bulgaria in just under 17h 40m. Your travel time can differ by up to 9h 35m. Airlines will cover a distance of 5665 mi. This flight may include one or multiple stops.

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

    $403 is the cheapest one-way deal found within the past few days, from Turkish Airlines. You may also be able to find cheap deals on Lufthansa and United Airlines, with prices starting from $502 and $576, respectively.

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

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Key Largo to Bulgaria (average of $358). Flying from Key Largo to Bulgaria in May is currently the most expensive (average of $832). 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 Bulgaria

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

Top 6 airlines flying from Key Largo to Bulgaria

Discover the top 6 airlines that operate flights from Key Largo to Bulgaria. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$551Average$868FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$630Average$799FlexibilityNo cancel feeOn-time70%
SWISSCheapest$653Average$1,195FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$656Average$1,103FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$657Average$1,032FlexibilityNo cancel feeOn-time69%
LOTCheapest$662Average$1,128FlexibilityNo cancel feeOn-time81%

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