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$156+ Cheap flights from Key Largo, FL to Burlington (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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — BTV
Aug 30 — Sep 61
Sun 8/30
Sun 9/6
1 adult, Economy
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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 July 31, 2026.

This United Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 10/307:00 am
MIA
-
BTV
1 stop7h 15m
United Airlines
Sun 11/18:54 am
BTV
-
MIA
1 stop9h 51m
United Airlines
Deal found 7/30$339
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:00 am
MIA
-
BTV
1 stop5h 45m
United Airlines
Thu 9/35:50 am
BTV
-
MIA
2 stops10h 41m
United Airlines
Deal found 7/28$344
This Delta deal was found by Cheapflights users on 7/29. 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 8/206:03 pm
MIA
-
BTV
1 stop5h 41m
Delta
Mon 8/245:14 am
BTV
-
MIA
1 stop7h 48m
Delta
Deal found 7/29$359
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 8/2912:17 pm
MIA
-
BTV
2 stops11h 26m
United Airlines
Sat 9/55:50 am
BTV
-
MIA
1 stop5h 21m
United Airlines
Deal found 7/30$364
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:03 am
MIA
-
BTV
1 stop6h 53m
Delta
Sat 8/226:00 am
BTV
-
MIA
1 stop8h 24m
Delta
Deal found 7/26$369
This American Airlines deal was found by Cheapflights users on 7/27. 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 10/15:56 pm
MIA
-
BTV
1 stop5h 38m
American Airlines
Mon 10/56:00 am
BTV
-
MIA
1 stop6h 19m
American Airlines
Deal found 7/27$374
This Delta deal was found by Cheapflights users on 7/28. 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.
Sat 12/265:59 pm
MIA
-
BTV
1 stop5h 57m
Delta
Tue 1/56:30 am
BTV
-
MIA
1 stop8h 25m
Delta
Deal found 7/28$385
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 11/1312:17 pm
MIA
-
BTV
2 stops11h 08m
United Airlines
Sun 11/156:00 am
BTV
-
MIA
1 stop6h 09m
United Airlines
Deal found 7/30$388
This Delta deal was found by Cheapflights users on 7/29. 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 10/83:45 pm
MIA
-
BTV
1 stop7h 25m
Delta
Sun 10/116:00 am
BTV
-
MIA
1 stop8h 09m
Delta
Deal found 7/29$389
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:34 pm
MIA
-
BTV
1 stop5h 51m
United Airlines
Sat 10/3110:43 am
BTV
-
MIA
2 stops11h 48m
United Airlines
Deal found 7/28$390
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 8/2812:17 pm
MIA
-
BTV
2 stops10h 45m
United Airlines
Fri 9/410:55 am
BTV
-
MIA
1 stop5h 36m
United Airlines
Deal found 7/29$394

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 July 31, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$339
(United Airlines)

One-way from

$156
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$425
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. 17% potential increase in price ($96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 31, 2026.
Use the filters below to find and compare flights from Key Largo to Burlington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MiamiBurlington

MIA - BTV

MIABTV

Miami

Fri 9/4

12:17 pm-9:38 pm

1 stop9h 21m

Burlington

Tue 9/8

6:00 am-2:51 pm

1 stop8h 51m

$339

MiamiBurlington

MIA - BTV

MIABTV

Miami

Fri 10/23

8:00 am-4:02 pm

1 stop8h 02m

Burlington

Tue 10/27

1:25 pm-8:43 pm

1 stop7h 18m

$339

MiamiBurlington

MIA - BTV

MIABTV

Miami

Thu 10/1

3:35 pm-11:05 pm

1 stop7h 30m

Burlington

Mon 10/5

6:32 am-2:26 pm

1 stop7h 54m

$339

MiamiBurlington

MIA - BTV

MIABTV

Miami

Thu 8/27

7:00 am-12:45 pm

1 stop5h 45m

Burlington

Thu 9/3

5:50 am-4:31 pm

2 stops10h 41m

$344

MiamiBurlington

MIA - BTV

MIABTV

Miami

Sat 8/29

12:17 pm-9:38 pm

1 stop9h 21m

Burlington

Sat 9/5

5:50 am-4:31 pm

2 stops10h 41m

$399

MiamiBurlington

MIA - BTV

MIABTV

Miami

Tue 9/1

12:17 pm-9:38 pm

1 stop9h 21m

Burlington

Sat 9/5

3:50 pm-11:44 pm

1 stop7h 54m

$429

MiamiBurlington

MIA - BTV

MIABTV

Miami

Fri 12/25

5:59 pm-11:56 pm

1 stop5h 57m

Burlington

Thu 12/31

7:00 am-9:38 pm

1 stop14h 38m

$487

MiamiBurlington

MIA - BTV

MIABTV

Miami

Fri 11/20

5:45 pm-12:11 am

1 stop6h 26m

Burlington

Fri 11/27

6:00 am-2:30 pm

1 stop8h 30m

$499
Quickest round-trip

MiamiBurlington

MIA - BTV

MIABTV

Miami

Sat 11/21

5:00 pm-10:50 pm

1 stop5h 50m

Burlington

Fri 11/27

6:35 am-2:31 pm

1 stop7h 56m

$529

MiamiBurlington

MIA - BTV

MIABTV

Miami

Fri 10/30

8:45 am-9:50 pm

2 stops13h 05m

Burlington

Mon 11/2

8:54 am-6:45 pm

1 stop9h 51m

$530

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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

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

Airfare is below average for this route at the moment.
Key Largo to Burlington flights typically cost between $363 and $689 in October.
The cheapest round-trip price found within the last 5 days was $339 on United Airlines (Oct 30-Nov 1).

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 July 31, 2026.
Read through reviews of airlines operating flights from Key Largo to Burlington, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,494 reviews

Comfort

7.8

Crew

8.5

Overall

7.8

Food

7.2

Boarding

8.1

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
7.8
Good
8,494 reviews
Delta
7.8
Good
8,494 reviews

Comfort

7.8

Crew

8.5

Overall

7.8

Food

7.2

Boarding

8.1

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
10,053 reviews
Delta
7.8
Good
8,494 reviews

Comfort

7.8

Crew

8.5

Overall

7.8

Food

7.2

Boarding

8.1

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
7.1
Good
11,846 reviews
Delta
7.8
Good
8,494 reviews

Comfort

7.8

Crew

8.5

Overall

7.8

Food

7.2

Boarding

8.1

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?

    United Airlines and Delta can get you from Key Largo to Burlington in just under 8h 02m. Your travel time can differ by up to 1h 19m. There are 1350 mi between Key Largo and Burlington. This flight may include one or multiple stops.

  • 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.

See more FAQs

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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 July 31, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$224Average$391FlexibilityNo cancel feeOn-time69%
DeltaCheapest$259Average$370FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$269Average$465FlexibilityNo cancel feeOn-time71%

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