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$156+ Cheap flights from Key Largo, FL to Burlington, VT (BTV)

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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — BTV
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from Key Largo to Burlington

Keep the following information in mind while searching for Key Largo to Burlington flight deals. Data was last updated January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$256
(Delta)

One-way from

$156
(Kiwi.com)

Popular in

June

Cheapest in

August

Average price

$464
Provider with most accurate pricing for Miami-Burlington flight deals.
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Provider most trusted by Cheapflights users for Miami-Burlington flights.
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From Key Largo to Burlington
Search Deals
One-way flight from Key Largo to Burlington
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Highest demand for flights based on searches. 6% potential increase in price ($31 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Key Largo to Burlington

Cheapest flights from Key Largo to Burlington
Explore the most affordable flight options available from Key Largo to Burlington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This Delta deal was found by Cheapflights users on 1/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/115:36 pm
MIA
-
BTV
1 stop6h 26m
Delta
Tue 2/176:00 am
BTV
-
MIA
2 stops11h 21m
Delta
Deal found 1/14$256
This Delta deal was found by Cheapflights users on 1/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/115:36 pm
MIA
-
BTV
1 stop6h 26m
Delta
Wed 2/185:02 pm
BTV
-
MIA
1 stop6h 18m
Delta
Deal found 1/12$271
This United Airlines deal was found by Cheapflights users on 1/13. 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.
Wed 2/251:38 pm
MIA
-
BTV
2 stops9h 16m
United Airlines
Sun 3/16:00 am
BTV
-
MIA
1 stop6h 32m
United Airlines
Deal found 1/13$275
This Delta deal was found by Cheapflights users on 1/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/198:05 am
MIA
-
BTV
1 stop8h 00m
Delta
Wed 2/255:02 pm
BTV
-
MIA
1 stop6h 18m
Delta
Deal found 1/14$289
This United Airlines deal was found by Cheapflights users on 1/12. 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.
Wed 2/111:45 pm
MIA
-
BTV
2 stops8h 46m
United Airlines
Wed 2/185:30 am
BTV
-
MIA
2 stops9h 28m
United Airlines
Deal found 1/12$301

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Burlington 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 15, 2026.
Use the filters below to find and compare flights from Key Largo to Burlington that are best for you.

Fly from

Key Largo

Fly to

Burlington

Route

Depart

Return

Price

MiamiBurlington

MIA - BTV

MIABTV

Miami

Wed 2/11

5:36 pm-12:02 am

1 stop6h 26m

Burlington

Tue 2/17

6:00 am-5:21 pm

2 stops11h 21m

$256

MiamiBurlington

MIA - BTV

MIABTV

Miami

Wed 2/11

5:36 pm-12:02 am

1 stop6h 26m

Burlington

Wed 2/18

5:02 pm-11:20 pm

1 stop6h 18m

$271

MiamiBurlington

MIA - BTV

MIABTV

Miami

Wed 2/25

1:38 pm-10:54 pm

2 stops9h 16m

Burlington

Sun 3/1

6:00 am-12:32 pm

1 stop6h 32m

$275

MiamiBurlington

MIA - BTV

MIABTV

Miami

Thu 2/19

8:05 am-4:05 pm

1 stop8h 00m

Burlington

Wed 2/25

6:00 am-3:41 pm

2 stops9h 41m

$294

MiamiBurlington

MIA - BTV

MIABTV

Miami

Thu 3/12

6:34 pm-11:44 pm

1 stop5h 10m

Burlington

Thu 3/19

5:30 am-11:26 am

1 stop5h 56m

$301

MiamiBurlington

MIA - BTV

MIABTV

Miami

Wed 2/11

4:03 pm-11:57 pm

1 stop7h 54m

Burlington

Tue 2/17

5:35 am-1:01 pm

1 stop7h 26m

$314

MiamiBurlington

MIA - BTV

MIABTV

Miami

Fri 1/30

5:51 pm-11:56 pm

1 stop6h 05m

Burlington

Mon 2/2

5:04 pm-10:51 pm

1 stop5h 47m

$314

MiamiBurlington

MIA - BTV

MIABTV

Miami

Thu 1/29

4:01 pm-10:13 am

2 stops42h 12m

$156

MiamiBurlington

MIA - BTV

MIABTV

Miami

Thu 1/22

7:09 pm-5:16 pm

3 stops46h 07m

$260

MiamiBurlington

MIA - BTV

MIABTV

Miami

Tue 3/17

11:23 am-12:05 am

1 stop12h 42m

$262

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 15 results
1
2

Best time to book a flight from Key Largo to Burlington

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

What is the cheapest month to book a flight from Key Largo to Burlington, Vermont?

Currently, July is the cheapest month in which you can book a flight from Key Largo to Burlington, Vermont (average of $110). Flying from Key Largo to Burlington, Vermont in September is currently the most expensive (average of $250). 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 Burlington

Get insights into the airlines that provide service to Burlington. 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 Burlington. Reviews last updated January 15, 2026.
Read through reviews of airlines operating flights from Key Largo to Burlington, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,048 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
7.9
Good
8,048 reviews
Delta
7.9
Good
8,048 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
United Airlines
7.4
Good
9,163 reviews
Delta
7.9
Good
8,048 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
American Airlines
7.2
Good
11,129 reviews
Delta
7.9
Good
8,048 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

Related info for your journey

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

    Most people fly into Burlington (BTV) if they book a flight to Burlington from Key Largo. On average, Burlington has 0 inbound flights from Key Largo per day from 3 airlines. Burlington is conveniently located just 3.0 mi from Burlington’s city center.

  • How long is the flight from Key Largo to Burlington, Vermont?

    Delta and United Airlines can get you from Key Largo to Burlington, Vermont in just under 6h 26m. Your travel time can differ by up to 2h 50m. Key Largo and Burlington, Vermont are separated by a distance of 1350 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Key Largo to Burlington, Vermont one-way?

    $108 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $125 and $150, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key Largo to Burlington 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 Burlington, Vermont?

    Currently, July is the cheapest month in which you can book a flight from Key Largo to Burlington, Vermont (average of $110). Flying from Key Largo to Burlington, Vermont in September is currently the most expensive (average of $250). 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

Traveling to a place near Burlington?

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Top 3 airlines flying from Key Largo to Burlington

Discover the top 3 airlines that operate flights from Key Largo to Burlington. 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 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$224Average$401FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$250Average$442FlexibilityNo cancel feeOn-time71%
DeltaCheapest$250Average$338FlexibilityNo cancel feeOn-timeN/A

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