$135 Cheap Frontier Airlines flights Boston (BOS) to Miami (MIA)

Scoring cheap one-way Frontier Airlines flights from BOS to MIA from $135 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $280 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

September is one of the least expensive months to jet off to Miami with Frontier Airlines. You could also find great deals on one-way and return fares in October.

To find cheap Frontier Airlines fares from Logan Intl. Airport (BOS) to Miami Intl. Airport (MIA), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence what you pay. Sunday is generally the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

You can easily fly from Logan Intl. Airport (BOS) to Miami Intl. Airport (MIA) on one of Frontier Airlines’s 4 direct weekly flights. Use our “Nonstop” and “Airline” filters to find the Frontier Airlines flight that’ll get you to MIA at a time that suits you.

Depart Logan Intl. Airport (BOS) for Miami Intl. Airport (MIA) on a nonstop Frontier Airlines flight, and you’ll be in the sky for about 3h 46m.

Departing BOS at 10:24AM UTC-5, the first Frontier Airlines flight to MIA lands at 2:12PM UTC-5. Flying early means you’re less likely to encounter delays or cancellations.* Not an early riser? The last Frontier Airlines flight from BOS to MIA departs at 11:38AM UTC-5 and touches down at 3:20PM UTC-5.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Miami Intl. Airport (MIA) is the main gateway for Frontier Airlines flights from Logan Intl. Airport (BOS) to Miami. But this carrier also travels to Fort Lauderdale - Hollywood Intl. Airport (FLL). Make sure you choose the “All Airports” option for your destination to see exactly what’s available for your getaway to Miami.

With a rewarding loyalty program, Frontier Airlines is a top pick for many passengers journeying from BOS to MIA. Plus, if you’re a Frontier Miles and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Frontier Airlines typically uses Airbus A320neo planes for flights from Logan Intl. Airport (BOS) to Miami Intl. Airport (MIA). This carrier also operates the Airbus A321 on this route. Keep in mind that aircraft type can change depending on operational reasons, so the plane you board could be different on your travel date.

Changes are usually free within 24 hours of making your booking, but your airline may add a charge after that time. For more details about altering your flights, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to change your itinerary without additional charges, apply the “No cancel fee” or “Changes included” filter when organizing your trip.