Cheap flights from Boston to Philadelphia (BOS - PHL) from $20

This is the cheapest one-way flight price, found on 9/19. Prices may vary by date and flight preferences.
BOS — PHL
Sep 25 — Oct 21

The best prices from Boston Logan Intl to Philadelphia are usually found in March or January, booked 45 days in advance, depart on a Thursday or Saturday and return on a Saturday

How to find the cheapest flight from Boston (BOS) to Philadelphia (PHL)

All the information you need to plan the best BOS to PHL flight in 2023: compare Boston to Philadelphia flight prices with the expected peak season, weather and rainfall in Philadelphia.

Popular in

April

Cheapest in

March

Round-trip from

$248

One-way from

$56
High demand for flights, 17% potential price rise
Best time to find cheap flights, 16% potential price drop
From Boston Logan Intl to Philadelphia
One-way flight from Boston Logan Intl to Philadelphia

BOS - PHL

Price

$248 - $428

PHL

Temperature

33.8 - 78.8 °F

PHL

Rainfall

2.7 - 4.4 inches

What is the cheapest day to fly round-trip from Boston to Philadelphia?

Flights from Boston to Philadelphia are found to be more expensive on Monday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Philadelphia.

How far in advance should I book a flight from Boston to Philadelphia?

Find a great deal and save up to 42% by booking at least 42 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Boston to Philadelphia within the next two weeks, with the cheapest ticket starting at $181.

What is the cheapest month to fly from Boston to Philadelphia?

Due to multiple factors, expect to potentially pay more when booking in April. For low rates, March can be a great choice for travel to Philadelphia. Flights to Philadelphia from Boston in March are about $178 on average during March, but can be found for as low as $53.

When is the cheapest time to fly from Boston to Philadelphia (BOS - PHL)?

It’s optimal to fly from Boston to Philadelphia in the morning. By choosing this option you can save up to 36% on the cost of your flight, compared to a flight in the afternoon.

Cheap Frontier flights from Boston to Philadelphia

Take a look at some of the lowest-priced Frontier flights heading from Boston to Philadelphia. Be sure to come back soon if the deals available don't appeal to you at this time.
  • One of the most popular airlines traveling from Boston to Philadelphia is Frontier. Flights from Frontier traveling this route typically cost $189.05 RT. This price is typically 20% cheaper than other airlines that offer Boston to Philadelphia flights. When booking this route, the cheapest RT price found was $69. Boston Logan Intl Airport is the most common Boston airport to take off from when flying to Philadelphia. Philadelphia Airport is the most popular arrival airport in Philadelphia. When flying from Boston to Philadelphia, Frontier flights are 16% more popular than any other airline flying that same route.

Cheap Spirit Airlines flights from Boston to Philadelphia

Have a look at some of the cheapest available Spirit Airlines flights departing from Boston and landing in Philadelphia. Make sure to examine the flight information before completing your reservation.
  • If you’re traveling from Boston to Philadelphia, one of the more common airlines traveling that route is Spirit Airlines. Boston to Philadelphia flights are typically 34% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $188.90 RT. The cheapest Spirit Airlines flight found for this route was $69. When traveling from Boston to Philadelphia on Spirit Airlines, the most popular airport to depart from is Boston Logan Intl Airport and the most popular airport to arrive at is Philadelphia Airport. When flying from Boston to Philadelphia, Spirit Airlines flights are 6% more popular than any other airline flying that same route.

Cheap Boston to Philadelphia flights in September & October 2023

The best prices found for BOS to PHL flights for September, October
Listed are some of the best fares we've found on flights departing from Boston to Philadelphia in 2023. If these deals don't appeal to you, be sure to come back soon for more options.

Boston to Philadelphia 2023 flight deals

Cheap flights to Philadelphia from Boston found for this year
Listed are some of the best fares we've found on flights departing from Boston to Philadelphia in 2023. If these deals don't appeal to you, be sure to come back soon for more options.

Non-stop flights to Philadelphia from Boston

Save time with Boston to Philadelphia direct flight deals
Consider booking one of these non-stop flights heading from Boston to Philadelphia. If you're looking for other options for flights from Boston to Philadelphia, make sure to update the search form at the top of page.

Boston to Philadelphia flights leaving soon

Late deals on return flights to Philadelphia from Boston, departing today and this week
Check out these flights departing soon from Boston to Philadelphia. Users should be sure to double check the price, date, and time of their last-minute flight.

One-way flights to Philadelphia from Boston

The cheapest one-way flights from Boston to Philadelphia
Users in need of a one-way flight from Boston to Philadelphia can choose from these deals. Those seeking round-trip flights from Boston to Philadelphia should utilize the search form at the the top of the page.

Find flights from Boston to Philadelphia within your budget

Use the slider to find flights from Boston to Philadelphia that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$37 - $64

Route

Depart

Return

Price

Boston Logan IntlPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Tue 10/17

Nonstop1h 34m

Philadelphia

Tue 10/24

Nonstop1h 29m

Boston Logan IntlPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Tue 10/17

Nonstop1h 34m

Philadelphia

Tue 10/24

Nonstop1h 29m

Boston Logan IntlPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Tue 10/17

Nonstop1h 34m

Philadelphia

Tue 10/24

Nonstop1h 29m

Boston Logan IntlPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Tue 10/17

Nonstop1h 34m

Philadelphia

Tue 10/24

Nonstop1h 29m

Boston Logan IntlPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Tue 10/17

Nonstop1h 34m

Philadelphia

Tue 10/24

Nonstop1h 29m

Boston Logan IntlPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Tue 10/17

Nonstop1h 34m

Philadelphia

Tue 10/24

Nonstop1h 29m

Boston Logan IntlPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Tue 10/17

Nonstop1h 34m

Philadelphia

Tue 10/24

1 stop9h 49m

Boston Logan IntlPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Wed 10/11

Nonstop1h 34m

Philadelphia

Wed 10/18

1 stop8h 17m

Boston Logan IntlPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Tue 10/17

1 stop13h 00m

Philadelphia

Tue 10/24

1 stop12h 08m

Flights are sorted by cheapest first

Deals found on 9/19

Reviews of airlines servicing Philadelphia

Peruse reviews from past customers who have flown with Frontier, Spirit Airlines and JetBlue from Boston to Philadelphia to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
3,016 reviews

Crew

8.5

Food

7.2

Entertainment

7.8

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Delta
7.9
Good
3,016 reviews
Delta
7.9
Good
3,016 reviews

Crew

8.5

Food

7.2

Entertainment

7.8

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

United Airlines
7.4
Good
1,887 reviews
Delta
7.9
Good
3,016 reviews

Crew

8.5

Food

7.2

Entertainment

7.8

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

American Airlines
7.2
Good
2,635 reviews
Delta
7.9
Good
3,016 reviews

Crew

8.5

Food

7.2

Entertainment

7.8

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

JetBlue
7.2
Good
781 reviews
Delta
7.9
Good
3,016 reviews

Crew

8.5

Food

7.2

Entertainment

7.8

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Spirit Airlines
6.3
Okay
1,480 reviews
Delta
7.9
Good
3,016 reviews

Crew

8.5

Food

7.2

Entertainment

7.8

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Related info for your journey

Useful info, stats and facts about Boston to Philadelphia flights.

What airports do I use to fly from Boston to Philadelphia?

If you book a flight from Boston to Philadelphia, you will be flying from Logan Intl to Philadelphia. Flights to Philadelphia (PHL) from Boston Logan Intl (BOS) take 1h 26m for a nonstop flight. There are 32 flights from Logan Intl to Philadelphia per day from 5 airlines.

Can I find flights from Boston to Philadelphia for under $100 on Cheapflights?

Yes, there are multiple flights from Boston to Philadelphia for under $100. The cheapest flight booked recently is on Frontier for just $37, but on average you can expect to pay $51.

Are there nonstop flights from Boston to Philadelphia for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Boston to Philadelphia under $100. A good price for a nonstop flight from Boston to Philadelphia is less than $53.

Are there last-minute flights available from Boston to Philadelphia for under $100?

There are currently 20+ open flights from Boston to Philadelphia within the next 7 days for less than $100.

What days are nonstop flights available from Boston to Philadelphia?

You can find nonstop flights on the following days: Sunday.

How popular is this Boston to Philadelphia flight route?

How many flights depart from Boston to Philadelphia on average per day?

1 flight departure from Boston to Philadelphia per day on average.
Afternoon (Noon - 6pm) - 100% of flight departures

How long is the flight from Boston to Philadelphia?

Airlines like Frontier and Spirit Airlines fly from Boston to Philadelphia in about 1h 34m. The time it takes to get you to your destination can typically vary by up to 11h 26m. The distance between Boston and Philadelphia is about 281 mi. This flight may include one or multiple stops.

What are the cheapest airlines flying from Boston to Philadelphia round-trip?

According to our current data, Frontier ($37), and Spirit Airlines ($64) offers the cheapest pricing from Boston to Philadelphia. Users have found that Frontier is 79% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Boston to Philadelphia one-way?

$20 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and JetBlue, with prices starting from $39 and $64, respectively.

What are the most popular airlines that fly from Boston to Philadelphia?

What are the most reliable airlines from Boston to Philadelphia?

The top 3 most reliable airlines when flying from Boston to Philadelphia are Aeromexico (100%), Japan Airlines (92%) and Korean Air (86%).

What are the cheapest flights from Boston to Philadelphia?

While on average a flight from Boston to Philadelphia is generally $791, our data shows the cheapest flight currently is $59. When looking at the most popular route, (Boston Logan Intl - Philadelphia), you can expect to pay $63 for that flight.

What does BOS to PHL mean?

This is defined as Boston Logan Intl Airport (BOS) and Philadelphia Airport (PHL). Codes like Philadelphia Airport are often used to just call airports uniquely.

Alternative routes for Boston to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Boston to Philadelphia

The chart below displays the airlines Cheapflights users traveling from Boston to Philadelphia choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$36Average$89FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapest$69Average$189FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
JetBlueCheapest$69Average$189FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Spirit AirlinesCheapest$124Average$238FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$125Average$248FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Hourly flight availability from Boston to Philadelphia

See what time of day planes typically take off from Boston to Philadelphia
9%of flight departuresEarly morningMidnight to 6 am
26%of flight departuresMorning6 am to noon
39%of flight departuresAfternoonNoon to 6 pm
26%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Boston to Philadelphia

See how many times per day planes take to the skies headed from Boston to Philadelphia
Sunday31daily flights
Monday39daily flights
Tuesday30daily flights
Wednesday31daily flights
Thursday37daily flights
Friday38daily flights
Saturday21daily flights
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