HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Burlington

$163+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — BTV
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Key Largo to Burlington with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 29, 2026.

This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:35 pm
MIA
-
BTV
1 stop5h 17m
United Airlines
Wed 4/16:00 am
BTV
-
MIA
1 stop8h 57m
United Airlines
Deal found 1/26$270
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/115:40 pm
MIA
-
BTV
1 stop6h 25m
Delta
Mon 3/165:08 pm
BTV
-
MIA
1 stop6h 10m
Delta
Deal found 1/27$289
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/306:29 pm
MIA
-
BTV
1 stop5h 12m
American Airlines
Tue 5/59:05 am
BTV
-
MIA
1 stop8h 44m
American Airlines
Deal found 1/27$296
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/113:37 pm
MIA
-
BTV
1 stop8h 25m
Delta
Tue 2/176:49 am
BTV
-
MIA
1 stop7h 40m
Delta
Deal found 1/27$314
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/72:03 pm
MIA
-
BTV
2 stops10h 01m
Delta
Wed 7/226:30 am
BTV
-
MIA
2 stops9h 14m
Delta
Deal found 1/28$325
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/246:00 am
MIA
-
BTV
1 stop7h 58m
United Airlines
Tue 3/35:30 am
BTV
-
MIA
1 stop5h 46m
United Airlines
Deal found 1/26$331

Find 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 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$270
(United Airlines)

One-way from

$163
(Kiwi.com)

Popular in

June

Cheapest in

August

Average price

$474
Provider with most accurate pricing for Miami-Burlington flight deals.
Search Deals
Provider most trusted by Cheapflights users for Miami-Burlington flights.
Search Deals
From Key Largo to Burlington
Search Deals
One-way flight from Key Largo to Burlington
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 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 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 29, 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 2/18

6:35 pm-11:52 pm

1 stop5h 17m

Burlington

Wed 4/1

6:00 am-2:57 pm

1 stop8h 57m

$270

MiamiBurlington

MIA - BTV

MIABTV

Miami

Fri 3/13

5:40 pm-12:05 am

1 stop6h 25m

Burlington

Wed 3/18

2:31 pm-11:24 pm

1 stop8h 53m

$289

MiamiBurlington

MIA - BTV

MIABTV

Miami

Tue 7/7

3:45 pm-11:27 pm

1 stop7h 42m

Burlington

Wed 7/22

6:30 am-3:44 pm

2 stops9h 14m

$294

MiamiBurlington

MIA - BTV

MIABTV

Miami

Wed 2/11

3:37 pm-12:02 am

1 stop8h 25m

Burlington

Tue 2/17

6:49 am-2:29 pm

1 stop7h 40m

$314

MiamiBurlington

MIA - BTV

MIABTV

Miami

Sat 2/14

3:20 pm-11:59 pm

2 stops8h 39m

Burlington

Wed 2/18

6:49 am-2:29 pm

1 stop7h 40m

$319

MiamiBurlington

MIA - BTV

MIABTV

Miami

Tue 2/24

6:00 am-1:58 pm

1 stop7h 58m

Burlington

Tue 3/3

5:30 am-11:16 am

1 stop5h 46m

$331

MiamiBurlington

MIA - BTV

MIABTV

Miami

Thu 4/30

5:15 am-11:43 am

1 stop6h 28m

$163

MiamiBurlington

MIA - BTV

MIABTV

Miami

Fri 2/13

7:09 pm-11:43 am

2 stops40h 34m

$173

MiamiBurlington

MIA - BTV

MIABTV

Miami

Tue 3/3

1:28 pm-11:09 pm

2 stops9h 41m

$205

MiamiBurlington

MIA - BTV

MIABTV

Miami

Wed 3/4

4:19 pm-11:41 pm

1 stop7h 22m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 14 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 August is currently the most expensive (average of $257). 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 29, 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
8,128 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

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
8,128 reviews
Delta
7.9
Good
8,128 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

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
9,215 reviews
Delta
7.9
Good
8,128 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

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
11,205 reviews
Delta
7.9
Good
8,128 reviews

Overall

7.9

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

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?

    United Airlines and Delta can get you from Key Largo to Burlington, Vermont in just under 5h 17m. Your travel time can differ by up to 1h 08m. 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 August is currently the most expensive (average of $257). 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?

Book flights to Burlington if you plan to visit one of these locations
South Burlington

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.

Alternative routes for Key Largo to Burlington

See prices for flight routes from nearby airports that may be better suited for you.
Orlando to Hartford flights
Tampa to Hartford flights
Orlando to Albany flights
West Palm Beach to Hartford flights
Fort Lauderdale to Hartford flights
Fort Myers to Hartford flights
Fort Lauderdale to Albany flights
Tampa to Albany flights
Miami to Hartford flights
Tampa to Burlington flights
Miami to Albany flights
Fort Lauderdale to Burlington flights
Orlando to Burlington flights
Jacksonville to Hartford flights
West Palm Beach to Albany flights
Miami to Burlington flights
Jacksonville to Burlington flights
Sarasota to Hartford flights
Sarasota to Albany flights
Jacksonville to Albany flights
West Palm Beach to Burlington flights
Daytona Beach to Hartford flights
Fort Myers to Albany flights
Pensacola to Albany flights
Sarasota to Burlington flights
Panama City to Albany flights
Gainesville to Burlington flights
Fort Myers to Burlington flights
Tampa to Rutland flights
Daytona Beach to Albany flights
Pensacola to Burlington flights
Melbourne to Hartford flights
Panama City to Hartford flights
Tampa to Lebanon flights
Pensacola to Hartford flights
Fort Lauderdale to Rutland flights
West Palm Beach to Rutland flights
Valdosta to Hartford flights
Melbourne to Albany flights
Fort Myers to Rutland flights
Gainesville to Hartford flights
Valparaiso to Hartford flights
Orlando to Lebanon flights
Tallahassee to Albany flights
West Palm Beach to Lebanon flights
Fort Myers to Lebanon flights
Key West to Hartford flights
Jacksonville to Rutland flights
Fort Lauderdale to Lebanon flights
Valparaiso to Albany flights

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 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$216Average$338FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$224Average$435FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$250Average$450FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.