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$239+ Cheap flights from Key Largo, FL to Brussels

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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — BRU
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Key Largo to Brussels

Cheapest flights from Key Largo to Brussels
Explore the most affordable flight options available from Key Largo to Brussels. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Vliegwinkel deal was found by Cheapflights users on 1/28. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/611:35 pm
MIA
-
BRU
1 stop18h 15m
TAP AIR PORTUGAL
Fri 2/206:00 am
BRU
-
MIA
1 stop14h 50m
TAP AIR PORTUGAL
Deal found 1/28$439
This oojo deal was found by Cheapflights users on 1/26. 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 3/411:35 pm
MIA
-
BRU
1 stop18h 15m
TAP AIR PORTUGAL
Wed 3/116:00 am
BRU
-
MIA
1 stop14h 50m
TAP AIR PORTUGAL
Deal found 1/26$441
This oojo deal was found by Cheapflights users on 1/27. 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 2/611:35 pm
MIA
-
BRU
1 stop18h 15m
TAP AIR PORTUGAL
Mon 2/165:55 pm
BRU
-
MIA
1 stop26h 55m
TAP AIR PORTUGAL
Deal found 1/27$442
This Flightnetwork deal was found by Cheapflights users on 1/27. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/225:35 pm
MIA
-
BRU
1 stop18h 30m
TAP AIR PORTUGAL
Tue 4/78:55 pm
BRU
-
MIA
1 stop23h 35m
TAP AIR PORTUGAL
Deal found 1/27$445
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Tue 2/109:45 pm
MIA
-
BRU
1 stop30h 05m
Air Europa
Tue 2/176:55 pm
BRU
-
MIA
1 stop30h 35m
Air Europa
Deal found 1/28$458
This FlightHub deal was found by Cheapflights users on 1/27. 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 2/238:40 pm
MIA
-
BRU
1 stop17h 10m
Scandinavian Airlines
Fri 3/133:10 pm
BRU
-
MIA
1 stop33h 25m
Scandinavian Airlines
Deal found 1/27$469
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Fri 2/274:35 pm
MIA
-
BRU
1 stop25h 15m
TAP AIR PORTUGAL
Fri 3/611:50 am
BRU
-
MIA
1 stop33h 00m
TAP AIR PORTUGAL
Deal found 1/28$474
This FlightHub deal was found by Cheapflights users on 1/27. 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 2/238:40 pm
MIA
-
BRU
1 stop15h 55m
Scandinavian Airlines
Tue 3/37:20 pm
BRU
-
MIA
2 stops29h 15m
Scandinavian Airlines
Deal found 1/27$481
This KAYAK deal was found by Cheapflights users on 1/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/63:50 am
MIA
-
BRU
1 stop34h 15m
TAP AIR PORTUGAL
Fri 5/2211:50 am
BRU
-
MIA
1 stop16h 05m
TAP AIR PORTUGAL
Deal found 1/28$484
This oojo deal was found by Cheapflights users on 1/27. 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 2/108:40 pm
MIA
-
BRU
1 stop31h 00m
Scandinavian Airlines
Tue 3/33:10 pm
BRU
-
MIA
1 stop33h 25m
Scandinavian Airlines
Deal found 1/27$501
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 3/44:35 pm
MIA
-
CRL
1 stop15h 15m
Multiple Airlines
Wed 3/117:00 am
CRL
-
MIA
1 stop20h 50m
Multiple Airlines
Deal found 1/27$512
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 2/236:45 pm
MIA
-
CRL
2 stops36h 35m
Multiple Airlines
Fri 3/136:25 am
CRL
-
MIA
1 stop19h 35m
Multiple Airlines
Deal found 1/27$628

Find flight deals from Key Largo to Brussels

Keep the following information in mind while searching for Key Largo to Brussels flight deals. Data was last updated January 29, 2026.

Round-trip from

$441
(oojo)

One-way from

$239
(oojo)

Popular in

June

Cheapest in

February

Average price

$634
From Key Largo to Brussels
Search Deals
One-way flight from Key Largo to Brussels
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($185 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Brussels 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 January 29, 2026.
Use the filters below to find and compare flights from Key Largo to Brussels that are best for you.

Fly from

Key Largo

Fly to

Brussels

Route

Depart

Return

Price

MiamiBrussels

MIA - BRU

MIABRU

Miami

Sun 3/22

5:35 pm-5:05 pm

1 stop18h 30m

Brussels Bruxelles-National

Tue 4/7

8:55 pm-2:30 pm

1 stop23h 35m

$445

MiamiBrussels

MIA - BRU

MIABRU

Miami

Mon 2/23

8:40 pm-10:50 am

2 stops32h 10m

Brussels Bruxelles-National

Tue 3/3

7:20 pm-6:35 pm

2 stops29h 15m

$501

MiamiBrussels

MIA - CRL

MIACRL

Miami

Wed 3/4

4:35 pm-1:50 pm

1 stop15h 15m

Charleroi Brussels

Wed 3/11

7:00 am-10:50 pm

1 stop20h 50m

$512

MiamiBrussels

MIA - BRU

MIABRU

Miami

Wed 3/4

8:40 pm-10:35 am

2 stops31h 55m

Brussels Bruxelles-National

Wed 3/11

10:20 am-7:35 pm

1 stop14h 15m

$526

MiamiBrussels

MIA - BRU

MIABRU

Miami

Mon 3/9

4:49 pm-1:15 pm

2 stops15h 26m

Brussels Bruxelles-National

Mon 3/16

10:00 am-4:11 pm

2 stops35h 11m

$584

MiamiBrussels

MIA - BRU

MIABRU

Miami

Fri 2/27

10:58 am-1:15 pm

2 stops20h 17m

Brussels Bruxelles-National

Fri 3/6

7:00 am-2:40 pm

1 stop13h 40m

$602

MiamiBrussels

MIA - BRU

MIABRU

Miami

Sun 3/22

6:00 am-8:05 am

1 stop21h 05m

Brussels Bruxelles-National

Tue 4/7

10:15 am-10:45 pm

1 stop18h 30m

$603

MiamiBrussels

MIA - BRU

MIABRU

Miami

Fri 3/20

3:33 pm-8:00 am

1 stop11h 27m

Brussels Bruxelles-National

Mon 3/30

9:45 am-8:50 pm

1 stop17h 05m

$628

MiamiBrussels

MIA - BRU

MIABRU

Miami

Sat 3/14

9:00 am-7:55 am

1 stop17h 55m

Brussels Bruxelles-National

Sat 3/21

10:15 am-8:27 pm

1 stop15h 12m

$628

MiamiBrussels

MIA - BRU

MIABRU

Miami

Mon 3/16

7:40 am-10:10 am

2 stops21h 30m

Brussels Bruxelles-National

Mon 3/23

6:15 am-11:24 pm

2 stops22h 09m

$629

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 35 results
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Best time to book a flight from Key Largo to Brussels

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

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

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Brussels. Price data was last updated on January 23, 2026.

Booking 45 days in advance of your planned departure date is, on average, the best time to get cheap flights from Key Largo to Brussels. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, April is the cheapest month in which you can book a flight from Key Largo to Brussels (average of $334). Flying from Key Largo to Brussels in June is currently the most expensive (average of $691). 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.

How much does it cost to fly round-trip from Key Largo to Brussels?

Reviews of airlines servicing Brussels

Get insights into the airlines that provide service to Brussels. 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 Brussels. Reviews last updated January 29, 2026.
Read reviews from past customers who have flown United Airlines, American Airlines, and TAP AIR PORTUGAL from Key Largo to Brussels. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,215 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,202 reviews
United Airlines
7.4
Good
9,215 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
TAP AIR PORTUGAL
7.1
Good
2,130 reviews
United Airlines
7.4
Good
9,215 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Iberia
7.0
Good
3,099 reviews
United Airlines
7.4
Good
9,215 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Air Europa
6.9
Okay
587 reviews
United Airlines
7.4
Good
9,215 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

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

    There are many flights that can get you from Key Largo to Brussels in 15h 26m. Fly via TAP AIR PORTUGAL, Scandinavian Airlines, or United Airlines to get the fastest option. Key Largo and Brussels are separated by a distance of 4631 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    One-way options have recently been found by users for as low as $296 on Air Europa. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $370 and Lufthansa from $406 one-way.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Key Largo to Brussels (average of $334). Flying from Key Largo to Brussels in June is currently the most expensive (average of $691). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Key Largo to Brussels

Discover the top 10 airlines that operate flights from Key Largo to Brussels. 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$334Average$813FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$450Average$598FlexibilityNo cancel feeOn-time77%
Air EuropaCheapest$519Average$729FlexibilityNo cancel feeOn-time83%
TAP AIR PORTUGALCheapest$521Average$863FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$542Average$686FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$545Average$972FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$545Average$592FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$558Average$745FlexibilityNo cancel feeOn-time77%
DeltaCheapest$562Average$740FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$575Average$804FlexibilityNo cancel feeOn-time77%

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