$55 Cheap Flights from Philadelphia (PHL) to Boston (BOS)

View $55 flight on Tue, Jun 24, 2025Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Logan International Airport (BOS)

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Find available prices by choosing your travel dates.

Cheap Flights from Philadelphia to Boston (PHL-BOS)

Prices were available within the past 7 days and start at $55 for one-way flights and $110 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Jul 1 - Tue, Jul 8
PHL
Philadelphia
BOS
Boston
$110 Roundtrip, found 5 hours ago
$110
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Tue, Jul 1 from Philadelphia to Boston, returning Tue, Jul 8, priced at $110 found 5 hours ago
Frontier Airlines
Tue, Jul 1 - Sun, Jul 6
PHL
Philadelphia
BOS
Boston
$120 Roundtrip, just found
$120
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Jul 1 from Philadelphia to Boston, returning Sun, Jul 6, priced at $120 just found
Frontier Airlines
Thu, Jul 24 - Tue, Jul 29
PHL
Philadelphia
BOS
Boston
$129 Roundtrip, found 2 days ago
$129
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Jul 24 from Philadelphia to Boston, returning Tue, Jul 29, priced at $129 found 2 days ago
Frontier Airlines
Thu, Jun 12 - Sun, Jun 15
PHL
Philadelphia
BOS
Boston
$130 Roundtrip, just found
$130
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Jun 12 from Philadelphia to Boston, returning Sun, Jun 15, priced at $130 just found
Spirit Airlines
Tue, Jun 10 - Tue, Jun 17
PHL
Philadelphia
BOS
Boston
$131 Roundtrip, just found
$131
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Jun 10 from Philadelphia to Boston, returning Tue, Jun 17, priced at $131 just found
Spirit Airlines
Sun, Jun 15 - Tue, Jun 24
PHL
Philadelphia
BOS
Boston
$132 Roundtrip, just found
$132
Roundtrip
just found
Select Spirit Airlines flight, departing Sun, Jun 15 from Philadelphia to Boston, returning Tue, Jun 24, priced at $132 just found
American Airlines
Tue, Jun 10 - Tue, Jun 17
PHL
Philadelphia
BOS
Boston
$139 Roundtrip, just found
$139
Roundtrip
just found
Select American Airlines flight, departing Tue, Jun 10 from Philadelphia to Boston, returning Tue, Jun 17, priced at $139 just found
Frontier Airlines
Thu, Jul 24 - Thu, Jul 31
PHL
Philadelphia
BOS
Boston
$139 Roundtrip, just found
$139
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Jul 24 from Philadelphia to Boston, returning Thu, Jul 31, priced at $139 just found
JetBlue Airways
Tue, Jun 10 - Tue, Jun 17
PHL
Philadelphia
BOS
Boston
$141 Roundtrip, just found
$141
Roundtrip
just found
Select JetBlue Airways flight, departing Tue, Jun 10 from Philadelphia to Boston, returning Tue, Jun 17, priced at $141 just found
Delta
Wed, May 7 - Sat, May 10
PHL
Philadelphia
BOS
Boston
$147 Roundtrip, just found
$147
Roundtrip
just found
Select Delta flight, departing Wed, May 7 from Philadelphia to Boston, returning Sat, May 10, priced at $147 just found
Flights from Philadelphia (PHL) to Boston (BOS)
Origin airport
Philadelphia Intl.
Destination airport
Logan Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$104
Distance
278 mi

Philadelphia to Boston Flights

The cheapest times to fly from Philadelphia to Boston

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Philadelphia to Boston are during the month of July. You can find some of the cheapest flights from Philadelphia to Boston with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Philadelphia to Boston

Sunday is one of the best days to book for cheap flights from Philadelphia to Boston: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Philadelphia to Boston

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Philadelphia to Boston in 2025. You can also book with separate airlines for your outbound and return journeys, from $55 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Philadelphia to Boston flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Philadelphia to Boston airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS) cost?
Cheap return fares from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS) start at $105. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving PHL on May 3 2025 and touching down at BOS. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from PHL to BOS?
The cheapest flights from PHL to BOS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS)?
Skip the layovers and travel nonstop from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS) with 4 carriers, including:

  • American Airlines
  • Delta Air Lines
  • JetBlue Airways

What is the cheapest airline that flies from PHL to BOS?
Currently, the cheapest carrier operating one-way flights from PHL to BOS is Frontier Airlines. You can jet off on this route from $55. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PHL on July 15 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS)?
When jetting out of Philadelphia Intl. Airport (PHL), you’ll have your pick from an average of 13 daily nonstop flights to Logan Intl. Airport (BOS).
What are the most popular departure times for flights from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS)?
More people fly between PHL and BOS at 11 AM than at any other point in the day. Rather skip the crowds? Pick a flight outside the busiest times and you’re likely to save on your ticket as well.
What day of the week has the most flights from PHL to BOS?
Fly on a Friday if you’re searching for the biggest selection of flights from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS).
What is the earliest flight from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS)?
Hop on the earliest flight at around 6:00AM UTC-5, heading out of Philadelphia Intl. Airport (PHL). You’ll be flying for around 1h 31m, coming in to land at Logan Intl. Airport (BOS) at approximately 7:31AM UTC-5.
How long does it take to fly from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS)?
Flights from PHL to BOS have an average travel time of 1 hour and 23 minutes. The distance between the two is 280 mi.
What airline has the least delays from PHL to BOS?
American Airlines has the best track record for on-time direct flights from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS), with an on-time score of 83%. Use the Expedia App to see your flight status before you jet off and get notified of any changes.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS)?
To arrive at Logan Intl. Airport (BOS) on time, book a flight that takes off from Philadelphia Intl. Airport (PHL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Boston from Philadelphia Intl. Airport (PHL)?
Philadelphia Intl. Airport (PHL) offers direct flights to Boston. Here are some of the airports you can fly to without stopovers:

  • Logan Intl. Airport (BOS)
  • T.F. Green Airport (PVD)
  • Manchester-Boston Regional Airport (MHT)

Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS) last-minute?
Waiting until just before your departure to book your flight from PHL to BOS generally means paying more. While you may find some last-minute deals, they’re not always guaranteed. Keep your travel schedule open for the best chance of snagging a bargain.
Is it cheaper to book a PHL to BOS flight and hotel package?
Opting for a PHL to BOS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our wide range of stays and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to Logan Intl. Airport (BOS)?
If you booked your PHL to BOS flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

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*Available to One Key members.