BOS - PHL

$68 Find Cheap Flights from Boston to Philadelphia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Philadelphia departing on 11/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Philadelphia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Philadelphia.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Philadelphia.
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Everything you should know

Cheapest round-trip
$93
Overall average: $215
Frontier
Sun 11/23Sat 11/29
BOS - PHL • Non-stop
Cheapest one-way
$68
Typical prices: $93-$194
Frontier
Sun 11/30
BOS - PHL • Non-stop
Our travelers' advice
AI-generated summary based on content written by travel experts
JetBlue's Even More Space seats add 7” legroom.
Use the SEPTA Airport Line for easy access to downtown.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to Philadelphia
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Top airlines
Frontier
Cheapest • from $93 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 41% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 26% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Philadelphia!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Boston to Philadelphia (BOS-PHL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Philadelphia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Philadelphia

Sun, Nov 23 - Sat, Nov 29
Frontier Logo
8:24 am - 10:04 amBOS-PHL
1h 40mnonstop
Frontier Logo
6:00 am - 7:29 amPHL-BOS
1h 29mnonstop
$93Frontier
Find Deal
Tue, Nov 25 - Sat, Nov 29
Frontier Logo
8:24 am - 10:04 amBOS-PHL
1h 40mnonstop
Frontier Logo
6:00 am - 7:29 amPHL-BOS
1h 29mnonstop
$104Frontier
Find Deal
Mon, Nov 24 - Fri, Nov 28
Frontier Logo
8:24 am - 10:04 amBOS-PHL
1h 40mnonstop
Frontier Logo
6:00 am - 7:29 amPHL-BOS
1h 29mnonstop
$107Frontier
Find Deal
Tue, Nov 25 - Fri, Nov 28
Frontier Logo
8:24 am - 10:04 amBOS-PHL
1h 40mnonstop
Frontier Logo
6:00 am - 7:29 amPHL-BOS
1h 29mnonstop
$108Frontier
Find Deal
Thu, Jan 8 - Thu, Jan 15
Frontier Logo
11:06 am - 4:24 pmBOS-PHL
5h 18m1 stop
Frontier Logo
6:00 am - 10:51 amPHL-BOS
4h 51m1 stop
$110Frontier
Find Deal
Tue, Dec 9 - Wed, Dec 17
JetBlue Logo
2:00 pm - 3:37 pmBOS-PHL
1h 37mnonstop
JetBlue Logo
4:32 pm - 5:54 pmPHL-BOS
1h 22mnonstop
$111JetBlue
Find Deal
Thu, Jan 8 - Thu, Jan 15
Frontier Logo
11:06 am - 4:24 pmBOS-PHL
5h 18m1 stop
Frontier Logo
6:00 am - 10:51 amPHL-BOS
4h 51m1 stop
$112Frontier
Find Deal
Sun, Nov 23 - Sun, Nov 23
Frontier Logo
8:24 am - 10:04 amBOS-PHL
1h 40mnonstop
Frontier Logo
8:42 pm - 10:04 amPHL-BOS
13h 22m1 stop
$113Frontier
Find Deal
Mon, Dec 1 - Wed, Dec 3
Frontier Logo
8:24 am - 10:04 amBOS-PHL
1h 40mnonstop
Frontier Logo
6:32 pm - 10:22 amPHL-BOS
15h 50m1 stop
$114Frontier
Find Deal
Thu, Jan 8 - Sat, Jan 10
Frontier Logo
11:06 am - 4:24 pmBOS-PHL
5h 18m1 stop
Frontier Logo
12:23 pm - 10:52 amPHL-BOS
22h 29m1 stop
$115Frontier
Find Deal
Booking Insights

KAYAK's insights & trends for Boston to Philadelphia flights

Get data-powered insights and trends into flights from Boston to Philadelphia to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to Philadelphia
Find cheap flights to Philadelphia

Planning a trip from Boston to Philadelphia? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from Boston to Philadelphia?

The average price of all round-trip flights from Boston to Philadelphia clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Boston to Philadelphia, look for departures on Thursdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Philadelphia, Thursday is the cheapest day to fly and Monday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Philadelphia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Philadelphia is January, where tickets cost $159 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $269 and $258 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Philadelphia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Philadelphia, you should book around 3 weeks before departure, which saves you about 41% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Expert advice

Expert advice for your flight from Boston to Philadelphia

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
American Airlines

Main Cabin Extra offers early boarding and complimentary drinks, enhancing travel comfort.


American Airlines provides high-speed Wi-Fi for purchase, ideal for business travelers.

JetBlue

JetBlue's Even More Space seats offer up to 7” extra legroom and priority boarding.


Enjoy free gate-to-gate Wi-Fi and live TV on JetBlue flights, enhancing in-flight experience.

Frontier

Frontier's Economy Bundle offers a carry-on and seat choice, ideal for budget travelers.


Opt for Premium Bundle for extra legroom and priority boarding, just $20 more than Economy.

Airports
BOS

Consider using the FlyLogan app for gate info, flight status, and ordering ahead at restaurants. It also offers a parking reservation feature.

PHL

Take the SEPTA Airport Line for a cost-effective 30-minute ride to downtown Philadelphia from PHL, with stops at multiple terminals.

Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines, JetBlue and PHL

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on Frontier

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Blane Bachelor

Blane Bachelor

Expert on BOS

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
 AI-powered savings tips

KAYAK's tips to save more on a Boston to Philadelphia flight

The cheapest days to fly from Boston to Philadelphia are generally on Saturdays, while the cheapest month to fly this route is typically March.

Cheapest Route: Opt for direct flights from Boston Logan Intl to Philadelphia.

Booking Advance: Book your flight at least 78 days in advance for the best rates.

Cheapest Airline: Frontier Airlines generally offers the cheapest fares on this route.

Flight Type: Direct flights are significantly more expensive, consider flights with one stop to save money.

March Travel: Consider flying in March for the most cost-effective rates.

This feature is powered by ChatGPT: an OpenAI-developed artificial intelligence model trained with KAYAK proprietary data and third-party data not verified by KAYAK. 

Good to know

Low seasonAugust
Cheapest flight$68
Best time to beat the crowds but there is an average 14% increase in price.
Flight from Boston to Philadelphia

When to book flights from Boston to Philadelphia

Are your dates flexible? Find out the best times to travel from Boston to Philadelphia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Philadelphia

  • What is the cheapest flight from Boston to Philadelphia?

    In the last 3 days, the lowest price for a flight from Boston to Philadelphia was $68 for a one-way ticket and $93 for a round-trip.

  • Do I need a passport to fly between Boston and Philadelphia?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from Boston to Philadelphia?

    JetBlue, Delta, American Airlines, Aeromexico, and Air France offer inflight Wi-Fi service on the Boston to Philadelphia flight route.

  • Which aircraft models fly most regularly from Boston to Philadelphia?

    The Embraer 175 is the aircraft model that flies most regularly on the Boston to Philadelphia flight route.

  • Which airline alliances offer flights from Boston to Philadelphia?

    SkyTeam, and oneworld are the airline alliances operating flights between Boston and Philadelphia, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Boston to Philadelphia?

    There are nonstop flights from Boston to Philadelphia on a daily basis.

  • Which is the best airline for flights from Boston to Philadelphia, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Boston to Philadelphia are Alaska Airlines and Delta. With an average price for the route of $257 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $206 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Boston to Philadelphia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Philadelphia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Philadelphia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Philadelphia from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Philadelphia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Philadelphia with an airline and back to Boston with another airline. Booking your flights between Boston and PHL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Philadelphia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Philadelphia from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to Philadelphia

  • Looking for a cheap flight? 25% of our users found flights on this route for $115 or less one-way and $191 or less round-trip.

Prefer to fly direct from Boston to Philadelphia?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Boston Logan Intl to Philadelphia.
Find which airlines fly direct from Boston Logan Intl Airport to Philadelphia Airport, which days they fly and book direct flights.

Direct departures

Boston Logan Intl to Philadelphia

Monday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

Tuesday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

Wednesday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

Thursday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

Friday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

Saturday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

Sunday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

See more direct flights

Direct returns

Philadelphia to Boston Logan Intl

Monday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

Tuesday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

Wednesday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

Thursday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

Friday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

Saturday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

Sunday

American Airlines, Delta, JetBlue

American Airlines, Delta, +1 more

See more direct flights

Reviews of the top 5 airlines serving from Boston to Philadelphia

 
See real verified KAYAK customer reviews for airlines flying from Boston to Philadelphia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Philadelphia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11281 reviews
8.1Boarding
7.0Entertainment
7.1Food
8.5Crew
7.8Comfort
Airline reviews

The crew in first class did an amazing job keeping me comfortable, well fed and with plenty to drink. They work hard and deserve to be recognized

10.0 ExcellentAnonymous, Nov 2025PHL - SEA
Read more Alaska Airlines reviews

The crew in first class did an amazing job keeping me comfortable, well fed and with plenty to drink. They work hard and deserve to be recognized

Flight from LAX to STS das excellent. Flight from DCA to LAX was troubled by the previous flight returning to the one DCA gate putting our flight in jeopardy. However another gate was arranged and that flight was a bit late, but was handled exceptionally.

A very good experience - all staff was friendly and helpful.

Late. Too long a flight for a 737. 0.5 oz of pretzels for a 5+ hour flight at dinner time. One step above Ryan Air/ several below Delta.

The plane boarded late and arrived late which wasn't really ideal.

My seat. The reprentative on the phone was bad. The passengers screamed at each other and no one stopped them. The directions boarding the plane were unclear. There was a medical incident and the ICU nurse present said the women was having a cardic incident. Cooler heads determined it was a UTI. I had a allergy attack and a guy got a mask from the flight attendent and told me to wear it. He "had kidney failure". Why didnt they tell him to wear the mask, why was he even on the plane? It was embarrassing, he said hurtful things. By the way, I have a degree in Medical Micrbiology from Northwestern Medical school. MT(ASCP). Look it up. I Know the difference between allergies and an infection. But we had to listen to the unstable screaming man.

Wouldve liked a meal option (that you didnt have to prepay for) for such a long flight. But otherwise staff was friendly and boarding/un boarding was as efficient as it could be

They offer the only direct flight from Seattle to Pittsburgh.

It was a good experience! Thank you:) No sparkling mineral water… 🥲

Upon arrival I was disappointed that the assist I requested to get to the baggage claim wasn't provided. The entire baggage area was not clearly marked and I wanted to store my baggage overnight, that wasn't available. I had to take it on the shuttle to the hotel!

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

the trip to madrid was uncomfortable with my legs touching the seat in front of me

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

Internet was a bit expensive and did not work ask that week otherwise a good flight

The flight had a delay that made me being in a real rush to take the second flight. The delay was almost for 2 hours. They moved us from gate to gate in 4 times. Once I arrived to Philadelphia, I got to run thorough all the airport, as the train was already closed by that time. So I got sick with asthma for all the running I had to do. And I was the last one to board, when it was almost closed. So irresponsable with the people

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Overall, a good experience. The food, however, was subpar. The breakfast was a joke.

I was late from Jacksonville, FL but the limited interaction I had with the Philly crew was great.

The delays and cancellations kept me stuck in Miami for an additional 24 hours, and the whole thing seemed extremely disorganized

Everything was great except British airways lost our luggage that was gate checked all the way through to Italy. No one knows currently where one is and the other one may be in route to Amsterdam to meet us but not sure. If you can Hale’s it would be awesome. The website is not helpful.

Checking In on JetBlue site was impossible. It hung up on REAL ID. Even my Global Entry did not help. Luckily, on Kayak site it was a breeze. Entire flight the temperature was COLD! Otherwise the crew was great!

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

Plane was in bad shape. TV’s and WiFi didn’t work. Plane need a refresh. Not enough room for bags.

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

They have the most inexperienced / rude flight staff I’ve encountered

very difficult boarding process - aggressive passengers not the friendliest crew

WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Better than expected. Staff were friendly and nice on both flights.

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

Everything you need to know for your flight from Boston to Philadelphia

Other airlines flying from Boston to Philadelphia

Flights from the other most popular airlines that fly from Boston to Philadelphia according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Compare transportation modes for Boston to Philadelphia

Transportation modeAverage priceAverage duration
Flights$6711h 37m
Trains$1485h 43m