$46 Cheap Flights from Boston (BOS) to Philadelphia (PHL)

View $46 flight on Thu, Oct 23, 2025Opens in a new window

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

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Cheap Flights from Boston to Philadelphia (BOS-PHL)

Prices were available within the past 7 days and start at $46 for one-way flights and $100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Oct 23 - Sun, Oct 26
BOS
Boston
PHL
Philadelphia
$100 Roundtrip, found 16 hours ago
$100
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Thu, Oct 23 from Boston to Philadelphia, returning Sun, Oct 26, priced at $100 found 16 hours ago
Frontier Airlines
Tue, Jul 22 - Sun, Jul 27
BOS
Boston
PHL
Philadelphia
$104 Roundtrip, found 23 hours ago
$104
Roundtrip
found 23 hours ago
Select Frontier Airlines flight, departing Tue, Jul 22 from Boston to Philadelphia, returning Sun, Jul 27, priced at $104 found 23 hours ago
Frontier Airlines
Sun, Aug 3 - Tue, Aug 5
BOS
Boston
PHL
Philadelphia
$108 Roundtrip, just found
$108
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Aug 3 from Boston to Philadelphia, returning Tue, Aug 5, priced at $108 just found
Frontier Airlines
Thu, Jul 24 - Sun, Aug 3
BOS
Boston
PHL
Philadelphia
$113 Roundtrip, just found
$113
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Jul 24 from Boston to Philadelphia, returning Sun, Aug 3, priced at $113 just found
JetBlue Airways
Tue, Oct 21 - Thu, Oct 23
BOS
Boston
PHL
Philadelphia
$116 Roundtrip, found 1 hour ago
$116
Roundtrip
found 1 hour ago
Select JetBlue Airways flight, departing Tue, Oct 21 from Boston to Philadelphia, returning Thu, Oct 23, priced at $116 found 1 hour ago
American Airlines
Tue, Jul 29 - Thu, Jul 31
BOS
Boston
PHL
Philadelphia
$118 Roundtrip, just found
$118
Roundtrip
just found
Select American Airlines flight, departing Tue, Jul 29 from Boston to Philadelphia, returning Thu, Jul 31, priced at $118 just found
Frontier Airlines
Thu, Jul 24 - Sun, Jul 27
BOS
Boston
PHL
Philadelphia
$118 Roundtrip, just found
$118
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Jul 24 from Boston to Philadelphia, returning Sun, Jul 27, priced at $118 just found
JetBlue Airways
Tue, Jul 29 - Thu, Jul 31
BOS
Boston
PHL
Philadelphia
$119 Roundtrip, just found
$119
Roundtrip
just found
Select JetBlue Airways flight, departing Tue, Jul 29 from Boston to Philadelphia, returning Thu, Jul 31, priced at $119 just found
Delta
Thu, Aug 21 - Mon, Aug 25
BOS
Boston
PHL
Philadelphia
$127 Roundtrip, just found
$127
Roundtrip
just found
Select Delta flight, departing Thu, Aug 21 from Boston to Philadelphia, returning Mon, Aug 25, priced at $127 just found
Spirit Airlines
Mon, Oct 20 - Thu, Oct 23
BOS
Boston
PHL
Philadelphia
$132 Roundtrip, just found
$132
Roundtrip
just found
Select Spirit Airlines flight, departing Mon, Oct 20 from Boston to Philadelphia, returning Thu, Oct 23, priced at $132 just found

Find the cheapest month to fly from Boston (BOS) to Philadelphia (PHL)

August is typically the cheapest month to fly

From $48 - $154 per traveler.

Graph displaying average flight prices per month

Alternative airports near Philadelphia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to New Castle ILG. Average driving time to city center is 44 minutes. Flights from $204
ILG
New Castle
Average driving time to city center44 min
Flights from $204
Flights from Boston (BOS) to Philadelphia (PHL)
Origin airport
Logan Intl.
Destination airport
Philadelphia Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$100
Distance
278 mi
Average flight time
1 hour 36 mins

Boston to Philadelphia Flights

The cheapest times to fly from Boston to Philadelphia

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 Boston to Philadelphia are during the month of October. You can find some of the cheapest flights from Boston to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to Philadelphia

Sunday is one of the best days to book for cheap flights from Boston to Philadelphia: 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 Boston to Philadelphia

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 Boston to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $46 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 Boston to Philadelphia 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 Boston to Philadelphia 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 Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL) cost?
You can book cheap return fares starting at $94 from Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL). 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 BOS on July 22 2025 and touching down at PHL. The price was last updated on July 12 2025 and has not changed since.
What is the cheapest month to fly from BOS to PHL?
The cheapest flights from BOS to PHL 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 Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL)?
Enjoy a seamless journey to Philadelphia Intl. Airport (PHL). 4 carriers operate direct flights from Logan Intl. Airport (BOS), including:

  • American Airlines
  • Delta Air Lines
  • JetBlue Airways

What is the cheapest airline that flies from BOS to PHL?
Travel from BOS to PHL with Frontier Airlines. This airline currently offers the lowest one-way fare on this route, starting at $44. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BOS on July 22 2025. Prices were last updated on July 12 2025 and have not changed since.
How many flights per day from Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL)?
Every day, an average of 13 nonstop flights operate from Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL). Choose the departure time that best suits your travel plans.
What are the most popular departure times for flights from Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL)?
More people fly between BOS and PHL at 8 AM than at any other time. Looking to skip the crowds? Travel outside of rush hours and you could save on your fare as well.
What day of the week has the most flights from BOS to PHL?
Friday offers the most flights from Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL). Consider leaving on this day and you'll have the best chance of finding a departure that works with your plans.
What is the earliest flight from Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL)?
Hop on the earliest flight at around 6:00AM UTC-5, leaving from Logan Intl. Airport (BOS). You'll be in the air for approximately 1h 37m, reaching Philadelphia Intl. Airport (PHL) at approximately 7:37AM UTC-5.
How long does it take to fly from Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL)?
Flights from BOS to PHL have an average travel time of 1 hour and 37 minutes. The total distance between these two airports is 280 mi.
What airline has the least delays from BOS to PHL?
Delta Air Lines has the best track record for on-time direct flights from Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL), with an on-time rating of 80%. Use the Expedia App to see your flight status before you jet off and receive notifications about any trip changes.
What is the best time to fly from Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL)?
To avoid potential delays on the Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL) route, aim to fly before 3 PM. Later flights have a 22% higher chance of being canceled.**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 Philadelphia from Logan Intl. Airport (BOS)?
Browse your flight options from Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL). This is the only Philadelphia airport you can arrive at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL) last-minute?
Last-minute fares from BOS to PHL are generally more expensive. For the cheapest rates, start looking for flights early. That said, if your travel plans are flexible, it's possible to land a cheap fare just before your departure.
Is it cheaper to book a BOS to PHL flight and hotel package?
You'll typically save money by booking a BOS to PHL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your ideal accommodations and flights, consider adding extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Philadelphia Intl. Airport (PHL)?
In most instances, you're able to cancel or reschedule your BOS to PHL flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need more information, head to our Customer Service portal.

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