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Cheap flights from Boston to Philadelphia from $58

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Philadelphia departing on 10/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Boston to Philadelphia

Cheap round-trip flights

Frontier Logo
9:28 am - 11:06 amBOS-PHL
1h 38mnonstop
Frontier Logo
6:05 am - 7:36 amPHL-BOS
1h 31mnonstop
$107Frontier
Find Deal
Thu, Sep 18 - Sun, Oct 19
Frontier Logo
12:59 pm - 5:41 pmBOS-PHL
4h 42m1 stop
Frontier Logo
7:15 am - 8:43 amPHL-BOS
1h 28mnonstop
$110Frontier
Find Deal
Fri, Sep 12 - Sun, Sep 14
Frontier Logo
9:28 am - 11:06 amBOS-PHL
1h 38mnonstop
Frontier Logo
6:15 am - 12:04 pmPHL-BOS
5h 49m1 stop
$111Frontier
Find Deal
Thu, Sep 11 - Fri, Sep 12
Frontier Logo
8:47 am - 9:32 pmBOS-PHL
12h 45m1 stop
Frontier Logo
7:15 am - 8:43 amPHL-BOS
1h 28mnonstop
$112Frontier
Find Deal
Thu, Sep 11 - Sun, Sep 14
Frontier Logo
11:43 am - 12:13 amBOS-PHL
12h 30m1 stop
Frontier Logo
7:15 am - 8:44 amPHL-BOS
1h 29mnonstop
$116Frontier
Find Deal
Sat, Nov 1 - Sun, Nov 2
Logo
9:28 am - 11:06 amBOS-PHL
1h 38mnonstop
Logo
12:00 pm - 11:57 pmPHL-BOS
11h 57m1 stop
$120
Find Deal
Thu, Sep 11 - Tue, Sep 16
Logo
3:00 pm - 11:47 pmBOS-PHL
8h 47m1 stop
Logo
7:15 am - 8:43 amPHL-BOS
1h 28mnonstop
$122
Find Deal
Tue, Sep 16 - Sun, Sep 21
Delta Logo
11:00 am - 12:43 pmBOS-PHL
1h 43mnonstop
Delta Logo
6:02 am - 7:40 amPHL-BOS
1h 38mnonstop
$139Delta
Find Deal
Wed, Nov 12 - Tue, Nov 18
Delta Logo
11:21 am - 12:55 pmBOS-PHL
1h 34mnonstop
Delta Logo
6:00 am - 7:36 amPHL-BOS
1h 36mnonstop
$149Delta
Find Deal
Tue, Sep 23 - Tue, Sep 30
Spirit Airlines Logo
3:00 pm - 11:47 pmBOS-PHL
8h 47m1 stop
Spirit Airlines Logo
12:00 pm - 11:57 pmPHL-BOS
11h 57m1 stop
$162Spirit Airlines
Find Deal
Tue, Sep 9 - Wed, Sep 10

Frontier flights from Boston to Philadelphia

Our best Frontier deals on Boston to Philadelphia flight tickets
Frontier
Sep 18
BOS9:28 amBoston Logan Intl
1h 38m
PHL11:06 amPhiladelphia
Oct 19
PHL6:05 amPhiladelphia
1h 31m
BOS7:36 amBoston Logan Intl
$107
Find similar
Frontier
Sep 12
BOS12:59 pmBoston Logan Intl
4h 42m
1 stop
PHL5:41 pmPhiladelphia
Sep 14
PHL7:15 amPhiladelphia
1h 28m
BOS8:43 amBoston Logan Intl
$110
Find similar
Frontier
Sep 11
BOS9:28 amBoston Logan Intl
1h 38m
PHL11:06 amPhiladelphia
Sep 12
PHL6:15 amPhiladelphia
5h 49m
1 stop
BOS12:04 pmBoston Logan Intl
$111
Find similar

Spirit Airlines flights from Boston to Philadelphia

Our best Spirit Airlines deals on Boston to Philadelphia flight tickets
Spirit Airlines
Sep 10
BOS3:00 pmBoston Logan Intl
8h 47m
1 stop
PHL11:47 pmPhiladelphia
Sep 14
PHL2:07 pmPhiladelphia
9h 50m
1 stop
BOS11:57 pmBoston Logan Intl
$160
Find similar
Spirit Airlines
Sep 9
BOS3:00 pmBoston Logan Intl
8h 47m
1 stop
PHL11:47 pmPhiladelphia
Sep 10
PHL12:00 pmPhiladelphia
11h 57m
1 stop
BOS11:57 pmBoston Logan Intl
$162
Find similar
Spirit Airlines
Sep 11
BOS2:53 pmBoston Logan Intl
9h 06m
1 stop
PHL11:59 pmPhiladelphia
Sep 14
PHL5:30 amPhiladelphia
8h 18m
1 stop
BOS1:48 pmBoston Logan Intl
$170
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 28, 2025.
Use the filters below to find and compare flights from Boston to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Thu 9/18

9:28 am-11:06 am

Nonstop1h 38m

Philadelphia

Sun 10/19

6:05 am-7:36 am

Nonstop1h 31m

$107

BostonPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Fri 9/12

12:59 pm-5:41 pm

1 stop4h 42m

Philadelphia

Sun 9/14

7:15 am-8:43 am

Nonstop1h 28m

$110

BostonPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Thu 9/11

9:28 am-11:06 am

Nonstop1h 38m

Philadelphia

Fri 9/12

6:15 am-12:04 pm

1 stop5h 49m

$111

BostonPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Thu 9/11

8:47 am-9:32 pm

1 stop12h 45m

Philadelphia

Sun 9/14

7:15 am-8:43 am

Nonstop1h 28m

$112

BostonPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Sat 11/1

11:43 am-12:13 am

1 stop12h 30m

Philadelphia

Sun 11/2

7:15 am-8:44 am

Nonstop1h 29m

$116

BostonPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Thu 9/11

9:28 am-11:06 am

Nonstop1h 38m

Philadelphia

Tue 9/16

12:00 pm-11:57 pm

1 stop11h 57m

$120

BostonPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Tue 9/16

3:00 pm-11:47 pm

1 stop8h 47m

Philadelphia

Sun 9/21

7:15 am-8:43 am

Nonstop1h 28m

$122

BostonPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Wed 11/12

11:00 am-12:43 pm

Nonstop1h 43m

Philadelphia

Tue 11/18

6:02 am-7:40 am

Nonstop1h 38m

$139

BostonPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Tue 9/23

11:21 am-12:55 pm

Nonstop1h 34m

Philadelphia

Tue 9/30

6:00 am-7:36 am

Nonstop1h 36m

$149

BostonPhiladelphia

BOS - PHL

BOSPHL

Boston Logan Intl

Tue 9/9

3:00 pm-11:47 pm

1 stop8h 47m

Philadelphia

Wed 9/10

12:00 pm-11:57 pm

1 stop11h 57m

$162

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Philadelphia from

How to get the cheapest flight ticket from Boston to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from Boston is in September. Flight prices, which tend to average around $158, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Philadelphia, with average flight prices from Boston averaging around $159.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from Boston to Philadelphia is on a Thursday. Travelers who choose to depart for Philadelphia on a Thursday will often find tickets for as low as $273. On the other hand, Sunday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $371.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from Boston to Philadelphia in the evening for as low as $264. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the afternoon when prices are around $420.

What is the cheapest Boston Logan Intl to Philadelphia flight route?

Fly from Boston Logan Intl to Philadelphia for the best Boston Logan Intl - Philadelphia flight prices

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

You are more likely to see cheaper flights to Philadelphia from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $195 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Boston for as low as $151 on momondo.

What cabin class options are available on Boston Logan Intl to Philadelphia flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to Philadelphia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Boston to Philadelphia flight prices changed over time?

As of August 2025, prices for Boston to Philadelphia flights are approximately 10% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Philadelphia (BOS to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Philadelphia

Best Price Found

$132

Fastest flight time

1h 34m

Direct flights

Every day

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from Boston in the past 72 hours is $132. The best round-trip flight deal from Boston to Philadelphia found on momondo in the last 72 hours is $219.
The fastest flight from Boston to Philadelphia takes 1h 34m
Direct flights go from Boston to Philadelphia every day.
There is 1 airport near Philadelphia: Philadelphia (PHL)
Search flight deals

  • How far is Boston Logan Intl to Philadelphia by plane?

    There are 270.0 mi between Boston Logan Intl and Philadelphia. 1h 34m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Philadelphia Airport?

    Prices for flights from Boston Logan Intl Airport to Philadelphia Airport were last updated today.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Philadelphia Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Philadelphia Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Philadelphia Airport.

  • What documentation or ID do you need to fly to Philadelphia Airport?

    The travel and health documents required for your trip to Philadelphia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Philadelphia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Boston to Philadelphia?

  • What is the most popular airline from Boston to Philadelphia?

Best airlines flying from Boston to Philadelphia

Compare and see reviews for airlines that fly from Boston to Philadelphia with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $31Free CancellationRating
5.8
3,204 reviews
Search Frontier flights
JetBluePriceFrom $74Free CancellationRating
7.2
2,920 reviews
Search JetBlue flights
DeltaPriceFrom $79Free CancellationRating
7.9
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $137Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $145Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $166Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights

  • Alaska Airlines Flights From Boston to Philadelphia

    Alaska Airlines operates around 2 flights from Boston to Philadelphia every week. The average price of these flights found in the last 72 hours has been $257, but momondo users have found Alaska Airlines deals from Boston to Philadelphia from as low as $145 round-trip. Alaska Airlines has been scored 8.0/10 in 10,000 reviews.

  • Delta Flights From Boston to Philadelphia

    Delta is also a popular choice for this route. Delta flight deals for Boston to Philadelphia start from as low as $79 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $202. Delta operates 6 flights to Philadelphia from Boston in an average week. Users have rated it 7.9/10 across 7,977 reviews.

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Ocean City
Wildwood Crest
King of Prussia
Reading
Dewey Beach
Newark
North Wildwood
Cherry Hill
Dover
Lewes
Avalon
Stone Harbor
Vineland
Essington
Exton
Pottstown
New Castle

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Philadelphia?

Finding the right flight to Philadelphia from Boston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Philadelphia quick and easy, saving you time and money.

Can I find flights from Boston to Philadelphia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Boston to Philadelphia flights to just show those with flexible booking policies.

How can momondo help me find flights from Boston to Philadelphia?

momondo helps you find the best flight between Boston and Philadelphia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to Philadelphia right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Boston to Philadelphia flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Philadelphia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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