$129 Find Cheap Flights from Boston to Key Largo - Compare and Save

When flying out of Boston you’ll be using Boston Logan Intl. Key Largo does not have its own airport so you’ll be flying into nearby Miami airport, which is 49.7 mi away.

Direct flights cover the 1,259 miles separating Boston and Key Largo in about 3h 27m.

28 direct flights run between Boston and Key Largo on a daily basis. On average, there are about 199 departures each week.

Consider leaving on a Sunday and avoid Thursdays if you are looking for the best rates. For your return to Boston, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Key Largo.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Key Largo from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Key Largo with an airline and back to Boston with another airline.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Key Largo from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

In the last 5 days, the cheapest one-way ticket between Boston and Key Largo found on KAYAK was with JetBlue for $78. Frontier offered a round-trip connection from $51 and Delta from $137.