BOS - PHL

$59 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 3/5. 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
$118
Overall average: $202
Delta
Thu 3/5Mon 3/9
BOS - PHL • Non-stop
Cheapest one-way
$59
Typical prices: $69-$160
Delta
Thu 3/5
BOS - PHL • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
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
Delta
Cheapest • from $118 (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 38% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 14% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Thu, Mar 5 - Mon, Mar 9
Delta Logo
8:51 am - 10:26 am
BOS
-
PHL
1h 35mnonstop
Delta Logo
6:00 am - 7:32 am
PHL
-
BOS
1h 32mnonstop
$118Delta
Tue, Feb 24 - Tue, Mar 3
Multiple Airlines Logo
12:29 pm - 2:07 pm
BOS
-
PHL
1h 38mnonstop
Multiple Airlines Logo
6:40 pm - 1:13 am
PHL
-
BOS
6h 33m
1 stop
$123Multiple Airlines
Thu, Mar 5 - Sat, Mar 14
JetBlue Logo
8:59 pm - 10:36 pm
BOS
-
PHL
1h 37mnonstop
JetBlue Logo
6:00 am - 7:17 am
PHL
-
BOS
1h 17mnonstop
$125JetBlue
Thu, Mar 19 - Sat, Mar 21
JetBlue Logo
7:25 am - 9:04 am
BOS
-
PHL
1h 39mnonstop
JetBlue Logo
6:00 am - 7:17 am
PHL
-
BOS
1h 17mnonstop
$126JetBlue
Thu, Mar 5 - Mon, Mar 9
Delta Logo
8:51 am - 10:26 am
BOS
-
PHL
1h 35mnonstop
Delta Logo
6:00 am - 7:32 am
PHL
-
BOS
1h 32mnonstop
$127Delta
Thu, Feb 26 - Mon, Mar 2
American Airlines Logo
5:49 am - 7:30 am
BOS
-
PHL
1h 41mnonstop
American Airlines Logo
9:57 pm - 11:23 pm
PHL
-
BOS
1h 26mnonstop
$128American Airlines
Wed, Mar 11 - Wed, Mar 18
Multiple Airlines Logo
8:59 pm - 10:36 pm
BOS
-
PHL
1h 37mnonstop
Multiple Airlines Logo
8:18 am - 3:28 pm
PHL
-
BOS
7h 10m
1 stop
$130Multiple Airlines
Tue, Mar 3 - Tue, Mar 3
Multiple Airlines Logo
12:29 pm - 2:07 pm
BOS
-
PHL
1h 38mnonstop
Multiple Airlines Logo
6:40 pm - 1:13 am
PHL
-
BOS
6h 33m
1 stop
$133Multiple Airlines
Tue, Mar 3 - Thu, Mar 5
Multiple Airlines Logo
6:00 am - 5:12 pm
BOS
-
PHL
11h 12m
1 stop
Multiple Airlines Logo
6:00 am - 7:17 am
PHL
-
BOS
1h 17mnonstop
$134Multiple Airlines
Fri, May 8 - Sat, May 9
JetBlue Logo
8:05 pm - 9:40 pm
BOS
-
PHL
1h 35mnonstop
JetBlue Logo
6:00 am - 7:17 am
PHL
-
BOS
1h 17mnonstop
$135JetBlue
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 Sunday 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 March, where tickets cost $202 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $268 and $261 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 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Expert advice

Expert advice for your flight from Boston to Philadelphia

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines, JetBlue and PHL

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.

Stefanie Waldek

Stefanie Waldek

Expert on Frontier

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.

Blane Bachelor

Blane Bachelor

Expert on BOS

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.

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.

AI-powered; AI can make mistakes.

Good to know

Low seasonJanuary
Cheapest flight$59
Best time to beat the crowds with an average 4% drop 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 $59 for a one-way ticket and $118 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, 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 $209 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 $97 or less one-way and $215 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 11875 reviews
7.8Comfort
7.1Food
8.1Boarding
8.5Crew
7.0Entertainment
Airline reviews

The flight was on time and got in early which allowed us to get to our next flight.

10.0 ExcellentKen, Feb 2026
DFW - SEA
Read more Alaska Airlines reviews

The flight was on time and got in early which allowed us to get to our next flight.

I got my seat changed last minute so a parent coumd sit with their child wich i found out was a teenager

Food was bad. Just a drink for a 5 hour flight

Leg and arm room are horrible. I am not a big person and found it tight.

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… 🥲

Was forced to check in my small carry on, even though I informed the crew it has very fragile items inside

This was one of the worst flights I’ve been on in years. I upgraded to comfort and had such an uncomfortable experience. The person next to me was oversized - which I understand - however, they took up their space and mine. I could only use about 50% of my seat space to not be physically touching this person the entire flight and there was no spatial awareness. I also could not use the seat outlet because their body was obstructing it. It was very inconvenient. Their body kept touching me repeatedly during the flight and I felt very uncomfortable. To pay more for an upgraded space and then not even being able to use it was highly disappointing.

No wheel chair as requested at Atlanta arrival on first flight.

Only freetext wifi was available in flight; browsing WiFi required payment. Since the seats had no in flight entertainment, Delta should revisit this policy on this longer flight.

Only water, tea or coffee served midflight, even to comfort seating. Man next to me needed two seats and took up a portion of my seat and Delta did nothing.

The flight was great as well as the airline staff

First class and monitors weren’t working for mine & my husbands. Eventually fixed, but quite annoyed as we bought first class. Also, No foot rests.

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

It was delayed but other than that it was great.

Got on the plane and sat there for an hour before departure.

Awful. Original flight was delayed 5 hours. Had to to take a connecting flight instead of direct. Had a 4 hour layover. I missed all of my morning meetings getting in 5 hours later than I was supposed to and had to change to take a later flight the next day to get them back in which cia time another $150.

I was trying to take 2 one and a half hour one way trips and I experienced almost 20 delays over the course of those two trips. Only a few of them were due to weather the rest was disorganization

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The seat cushions were very worn so they were extremely uncomfortable.

Crew were all friendly and helpful. It was a short flight so just a beverage service with a cookie. After we were boarded the plane took about 45 minutes to leave the gate but it was New Year’s Eve so not shocking there was some delay. Overall good experience and very grateful.

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 crew for the flight was A+ top notch. They were friendly and professional and made the flight a very relaxing and enjoable.

Rude crew member. She seemed annoyed at me without me saying a single word. Also loudly admonished me for having my bag next to my seat instead of tucked away before landing. Just telling me to put it away and guiding me without giving me a lecture would have been enough.

No included food for a 5 hour flight and the entertainment was only accessible if you had wired headphones (not provided). Otherwise though, great and smooth flying and customer service.

Crew were fantastic and so catering and wonderful! Full score for the entire crew!

Because of weather and mechanical issues our flight was 4 hours late. The only compensation offered to us was a meal voucher to be used only at Boston Airport and only on the day issued. But by the time it was offered to us all the restaurants were closed, so there was no way to use that offer.

Friendly crew, efficient boarding and flight arrived early. Couldn’t ask for a better experience

Terrible. They canceled our early morning flight after midnight on the day of and had no available flights to rebook my family on for the next 72 hours. Yet they still had other flights that were not cancelled from JFK so it couldn’t be based on the weather. It felt like they canceled the flight based on it not being profitable enough for them. I am not interested in traveling with the again. The absolute worse customer service and lack of accountability.

Horribly rude check in at airport, worst in 25 years of flying. All over a simple issue they could have googled to resolve.

First time flying with JetBlue and never again. I went to the counter to request meet and assist because I'm 74 and my wife is 79. I walk with a cane and my wife is handicapped and has her own wheel chair. I told the agent that my wife and luggage was at the entrance door. The ticketing agent said to me that they don't offer meet and assist. I need to bring them our luggage and then go back and get my wife in order to get my boarding pass. As I went back to get my luggage a Southwest agent along with a TSA agent recognized the situation and came over and took my wife and luggage to the JetBlue ticketing counter alongside the line and told the JetBlue agent to issue to take our luggage as soon as they could.

1) No pilot available for 1 hour 2) no room for most passengers careyon in overhead—-> stowed below 3) when we landed we had to wait 45 min. Before docking at gate as gate was not ready

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

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$7811h 35m
Trains$1625h 47m