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Bulgaria

$287+ 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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SOF
Mar 8 — Mar 151
Sun 3/8
Sun 3/15
1 adult, Economy
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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 February 6, 2026.

This KLM deal was found by Cheapflights users on 2/3. 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 12/2312:01 pm
MIA
-
SOF
2 stops18h 59m
KLM
Fri 1/87:00 am
SOF
-
MIA
1 stop15h 00m
KLM
Deal found 2/3$530
This AirNGo deal was found by Cheapflights users on 2/4. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:15 am
MIA
-
SOF
2 stops19h 40m
Multiple Airlines
Mon 8/243:45 pm
SOF
-
MIA
1 stop32h 40m
Multiple Airlines
Deal found 2/4$550
This Justfly.com deal was found by Cheapflights users on 2/4. 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 2/1610:20 am
MIA
-
VAR
1 stop15h 50m
Turkish Airlines
Tue 2/2410:00 am
VAR
-
MIA
1 stop17h 35m
Turkish Airlines
Deal found 2/4$591
This Justfly.com deal was found by Cheapflights users on 2/3. 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.
Wed 2/2510:30 pm
MIA
-
SOF
1 stop27h 15m
Turkish Airlines
Wed 3/119:35 am
SOF
-
MIA
1 stop18h 00m
Turkish Airlines
Deal found 2/3$592
This Gotogate deal was found by Cheapflights users on 2/4. 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.
Wed 5/68:15 am
MIA
-
SOF
2 stops19h 25m
Multiple Airlines
Wed 5/206:20 am
SOF
-
MIA
2 stops17h 47m
Multiple Airlines
Deal found 2/4$597
This oojo deal was found by Cheapflights users on 2/2. 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.
Fri 2/1310:20 am
MIA
-
VAR
1 stop27h 15m
Turkish Airlines
Wed 2/2510:00 am
VAR
-
MIA
1 stop17h 35m
Turkish Airlines
Deal found 2/2$597
This FlightHub deal was found by Cheapflights users on 2/4. 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.
Wed 4/110:35 am
MIA
-
SOF
1 stop15h 10m
Turkish Airlines
Tue 4/219:05 pm
SOF
-
MIA
1 stop17h 05m
Turkish Airlines
Deal found 2/4$602
This Gotogate deal was found by Cheapflights users on 2/5. 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 3/3112:20 pm
MIA
-
SOF
2 stops16h 50m
Multiple Airlines
Tue 4/146:10 am
SOF
-
MIA
1 stop15h 30m
Multiple Airlines
Deal found 2/5$605
This Gotogate deal was found by Cheapflights users on 2/4. 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.
Wed 4/112:20 pm
MIA
-
SOF
2 stops16h 50m
Multiple Airlines
Fri 4/176:20 am
SOF
-
MIA
1 stop15h 20m
Multiple Airlines
Deal found 2/4$606
This Justfly.com deal was found by Cheapflights users on 2/3. 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.
Thu 8/2710:35 am
MIA
-
VAR
1 stop15h 10m
Turkish Airlines
Wed 9/2310:10 pm
VAR
-
MIA
1 stop16h 00m
Turkish Airlines
Deal found 2/3$608
This Kiwi.com deal was found by Cheapflights users on 2/4. 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 4/16:45 pm
MIA
-
SOF
2 stops21h 05m
Multiple Airlines
Mon 4/203:45 pm
SOF
-
MIA
1 stop32h 40m
Multiple Airlines
Deal found 2/4$609
This Gotogate deal was found by Cheapflights users on 2/3. 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 5/56:00 pm
MIA
-
SOF
2 stops33h 40m
Multiple Airlines
Tue 5/196:10 am
SOF
-
MIA
1 stop15h 30m
Multiple Airlines
Deal found 2/3$611

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 February 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$591
(Justfly.com)

One-way from

$287
(AirNGo)

Popular in

June

Cheapest in

January

Average price

$659
Provider with most accurate pricing for Miami-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Miami-Sofia flights.
Search Deals
From Key Largo to Bulgaria
Search Deals
One-way flight from Key Largo to Bulgaria
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($265 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 6, 2026.
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

MiamiVarna

MIA - VAR

MIAVAR

Miami

Mon 2/16

10:20 am-9:10 am

1 stop15h 50m

Varna

Tue 2/24

10:00 am-8:35 pm

1 stop17h 35m

$591

MiamiSofia

MIA - SOF

MIASOF

Miami

Wed 5/6

10:30 pm-1:15 pm

1 stop31h 45m

Sofia

Wed 5/20

9:05 pm-7:10 am

1 stop17h 05m

$592

MiamiSofia

MIA - SOF

MIASOF

Miami

Thu 2/26

10:30 pm-8:45 am

1 stop27h 15m

Sofia

Thu 3/12

9:35 am-9:35 pm

1 stop18h 00m

$592

MiamiSofia

MIA - SOF

MIASOF

Miami

Wed 4/1

10:35 am-8:45 am

1 stop15h 10m

Sofia

Fri 4/17

9:35 am-8:35 pm

1 stop18h 00m

$602

MiamiSofia

MIA - SOF

MIASOF

Miami

Wed 8/5

12:05 pm-2:00 pm

2 stops18h 55m

Sofia

Wed 8/19

7:00 am-6:46 pm

2 stops18h 46m

$618

MiamiSofia

MIA - SOF

MIASOF

Miami

Wed 8/5

12:05 pm-2:00 pm

2 stops18h 55m

Sofia

Wed 8/19

7:00 am-5:50 pm

1 stop17h 50m

$618

MiamiSofia

MIA - SOF

MIASOF

Miami

Fri 5/8

10:35 am-3:00 pm

1 stop21h 25m

Sofia

Fri 5/22

9:05 pm-8:35 pm

1 stop30h 30m

$629

MiamiSofia

MIA - SOF

MIASOF

Miami

Mon 3/30

10:35 am-8:45 am

1 stop15h 10m

Sofia

Mon 4/13

9:35 am-8:35 pm

1 stop18h 00m

$629

MiamiSofia

MIA - SOF

MIASOF

Miami

Wed 4/1

7:40 pm-6:00 pm

1 stop15h 20m

Sofia

Mon 4/20

6:45 pm-5:40 pm

1 stop29h 55m

$636

MiamiVarna

MIA - VAR

MIAVAR

Miami

Wed 3/4

10:30 pm-8:35 pm

1 stop15h 05m

Varna

Sun 3/8

10:00 am-8:00 am

1 stop28h 00m

$648

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

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, August is the cheapest month in which you can book a flight from Key Largo to Bulgaria (average of $526). Flying from Key Largo to Bulgaria in May is currently the most expensive (average of $807). 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.

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 February 6, 2026.
Peruse reviews from past customers who have flown with SWISS, United Airlines, and Turkish 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.
SWISS
7.6
Good
1,864 reviews

Overall

7.6

Comfort

7.4

Boarding

7.7

Food

7.1

Crew

8.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
SWISS
7.6
Good
1,864 reviews
SWISS
7.6
Good
1,864 reviews

Overall

7.6

Comfort

7.4

Boarding

7.7

Food

7.1

Crew

8.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
United Airlines
7.4
Good
9,241 reviews
SWISS
7.6
Good
1,864 reviews

Overall

7.6

Comfort

7.4

Boarding

7.7

Food

7.1

Crew

8.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
Turkish Airlines
7.3
Good
4,210 reviews
SWISS
7.6
Good
1,864 reviews

Overall

7.6

Comfort

7.4

Boarding

7.7

Food

7.1

Crew

8.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
Lufthansa
6.8
Okay
7,762 reviews
SWISS
7.6
Good
1,864 reviews

Overall

7.6

Comfort

7.4

Boarding

7.7

Food

7.1

Crew

8.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.
British Airways
6.7
Okay
7,716 reviews
SWISS
7.6
Good
1,864 reviews

Overall

7.6

Comfort

7.4

Boarding

7.7

Food

7.1

Crew

8.3

Entertainment

6.8

Reviews

1 / 20
2.0
Mediocre

Joanne,Sep 2025

OPO - ZRH

The seats were very cramped, even though I paid for an upgraded seat. The seats were also hard, and needed new padding. This made is made it very challenging for this 11 hour flight. The foot was alright. The crew were excellent, and the movie selection was very good. The experience was so challenging what my husband says he does not want to fly to Europe any more.

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 can get you from Key Largo to Bulgaria in just under 15h 50m. Your travel time can differ by up to . Airlines will cover a distance of 5841 mi.

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

    $318 is the cheapest one-way deal found within the past few days, from SWISS. You may also be able to find cheap deals on United Airlines and Turkish Airlines, with prices starting from $385 and $403, respectively.

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

    The most popular route from Key Largo to Bulgaria is Miami - Sofia. You may also consider Miami - Varna or Miami - Bourgas.

  • 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, August is the cheapest month in which you can book a flight from Key Largo to Bulgaria (average of $526). Flying from Key Largo to Bulgaria in May is currently the most expensive (average of $807). 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 5 airlines flying from Key Largo to Bulgaria

Discover the top 5 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 February 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$551Average$930FlexibilityNo cancel feeOn-time77%
SWISSCheapest$556Average$1,089FlexibilityNo cancel feeOn-time79%
British AirwaysCheapest$630Average$863FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$651Average$1,094FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$657Average$1,015FlexibilityNo cancel feeOn-time69%

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