PHL - BOS

$122 Find Cheap Flights from Philadelphia to Boston - Compare and Save

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Everything you should know

Cheapest round-trip
$236
Typical prices: $183-$330
Frontier
Tue 12/4Fri 12/7
PHL - BOS • 1 stop
Cheapest non-stop
$249
Typical prices: $183-$330
JetBlue
Thu 12/6Sat 12/8
PHL - BOS • Non-stop
Nonstop flights
You can fly direct with American Airlines, Delta and JetBlue. Average duration is 1h 34m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 94% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 26 weeks in advance save around 48% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $191 (round-trip)
Shortest trip • 4h 01m (one-way)
Insights
Insights
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We hope you love your trip to Boston!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Philadelphia to Boston (PHL-BOS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Boston

Fri, Dec 4 - Mon, Dec 7
Frontier Logo
9:58 pm - 10:13 amPHL  Philadelphia-BOS Boston Logan Intl
12h 15m1 stop Orlando
Frontier Logo
11:08 am - 10:49 pmBOS  Boston Logan Intl-PHL Philadelphia
11h 41m1 stop Orlando
$236Frontier
Fri, Dec 4 - Fri, Dec 11
Frontier Logo
9:58 pm - 10:13 amPHL  Philadelphia-BOS Boston Logan Intl
12h 15m1 stop Orlando
Frontier Logo
11:34 am - 11:05 pmBOS  Boston Logan Intl-PHL Philadelphia
11h 31m1 stop Atlanta Hartsfield-Jackson
$236Frontier
Sun, Dec 6 - Tue, Dec 8
JetBlue Logo
7:33 pm - 8:57 pmPHL  Philadelphia-BOS Boston Logan Intl
1h 24mnonstop
JetBlue Logo
5:05 pm - 6:43 pmBOS  Boston Logan Intl-PHL Philadelphia
1h 38mnonstop
$249JetBlue
Tue, Oct 6 - Wed, Oct 7
JetBlue Logo
10:42 am - 12:04 pmPHL  Philadelphia-BOS Boston Logan Intl
1h 22mnonstop
JetBlue Logo
8:30 pm - 10:04 pmBOS  Boston Logan Intl-PHL Philadelphia
1h 34mnonstop
$249JetBlue
Thu, Oct 22 - Tue, Oct 27
Multiple Airlines Logo
7:19 pm - 9:30 pmPHL  Philadelphia-BOS Boston Logan Intl
2h 11mnonstop
Multiple Airlines Logo
11:12 am - 6:19 pmBOS  Boston Logan Intl-PHL Philadelphia
7h 07m1 stop Atlanta Hartsfield-Jackson
$265Multiple Airlines
Fri, Oct 23 - Tue, Oct 27
Multiple Airlines Logo
2:09 pm - 4:04 pmPHL  Philadelphia-BOS Boston Logan Intl
1h 55mnonstop
Multiple Airlines Logo
11:12 am - 6:19 pmBOS  Boston Logan Intl-PHL Philadelphia
7h 07m1 stop Atlanta Hartsfield-Jackson
$265Multiple Airlines
Fri, Nov 6 - Sun, Nov 8
American Airlines Logo
8:12 pm - 9:37 pmPHL  Philadelphia-BOS Boston Logan Intl
1h 25mnonstop
American Airlines Logo
6:00 am - 7:40 amBOS  Boston Logan Intl-PHL Philadelphia
1h 40mnonstop
$295American Airlines
Mon, Dec 21 - Sun, Jan 17
American Airlines Logo
9:50 pm - 11:14 pmPHL  Philadelphia-BOS Boston Logan Intl
1h 24mnonstop
American Airlines Logo
1:02 pm - 2:42 pmBOS  Boston Logan Intl-PHL Philadelphia
1h 40mnonstop
$295American Airlines
Sat, Oct 17 - Wed, Oct 21
Delta Logo
7:10 am - 8:33 amPHL  Philadelphia-BOS Boston Logan Intl
1h 23mnonstop
Delta Logo
8:30 pm - 10:07 pmBOS  Boston Logan Intl-PHL Philadelphia
1h 37mnonstop
$295Delta
Thu, Oct 8 - Sun, Oct 11
Delta Logo
6:00 am - 7:26 amPHL  Philadelphia-BOS Boston Logan Intl
1h 26mnonstop
Delta Logo
7:31 am - 9:20 amBOS  Boston Logan Intl-PHL Philadelphia
1h 49mnonstop
$295Delta
Booking Insights

Price, demand and travel trends for Philadelphia to Boston flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Philadelphia to Boston?

Round-trip flights from Philadelphia to Boston typically range from $183 to $330. The lowest price found in the past 5 days was $236, on Frontier.

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

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Philadelphia to Boston. It’s 6% cheaper than the average day, while Monday is the most expensive, with prices 10% higher.

What’s the cheapest month to fly from Philadelphia to Boston?

•January is the cheapest month to fly from Philadelphia to Boston at $186 round-trip.
•March ($281) and April ($266) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 51% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Philadelphia to Boston the cheapest?

Flights from Philadelphia to Boston are cheapest 26 weeks before departure. Booking in this window typically costs about 48% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Philadelphia to Boston

 
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 Delta and 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.

Key details for Philadelphia to Boston flights

Low season

January

Cheapest flight

$122
Beat the crowds with an average 27% drop in travelers.
The most popular month to fly with an average 57% increase in travelers.
One-way flight from Philadelphia to Boston

When to book flights from Philadelphia to Boston

Are your dates flexible? Find out the best times to travel from Philadelphia to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Philadelphia to Boston flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Philadelphia to Boston?

    These are the earliest and latest flight times available from Philadelphia to Boston:

    • Earliest: departs at 6:00 am and lands at 7:34 am
    • Latest: departs at 10:16 pm and lands at 11:50 pm.

    The flight takes about 1h 34m.

  • What cabin classes can I book on flights from Philadelphia to Boston?

    Four cabin classes are available on flights from Philadelphia to Boston:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Philadelphia to Boston?

    A nonstop flight from Philadelphia to Boston takes 1h 34m, covering 279 miles.

  • Do I need a passport to fly from Philadelphia to Boston?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Philadelphia to Boston flight?

    Round-trip flights from Philadelphia to Boston range from $183 to $330, with an average of $240 over the past 12 months. Anything below $183 counts as a good deal.

  • How expensive are last-minute Philadelphia to Boston flights?

    Last-minute fares on this route (booked within two weeks of departure) run 38% above the $240 route average. Book 26 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Philadelphia to Boston?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $191 round-trip via Orlando (MCO), compared to $239 for nonstop.

  • How does on-time performance compare across airlines flying from Philadelphia to Boston?

    Frontier is slightly above the route average for timely arrivals, while Delta has a lower on-time arrival rate. On-time arrival rates on Philadelphia to Boston flights are:

    • Frontier: 94% on time
    • Delta: 86% on time
    • American Airlines: 82% on time

    Overall, flights on this route are punctual 83% of the time on average.

  • What is the standard checked-bag allowance on flights from Philadelphia to Boston?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Philadelphia to Boston?

    The Embraer 175 family is used most often on this route, operated mainly by Delta and American Airlines. Other aircraft seen on the route include Airbus A220-300 variants.

  • How are flight departures from Philadelphia to Boston spread across the day?

    Morning is the busiest departure period on Philadelphia to Boston flights, with 38% of flights leaving in that window. Afternoon departures account for 31%, evening flights for 25%, and night flights for 6%.

  • Have flight prices from Philadelphia to Boston changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $236 to $1,138. That means the highest observed fare was about 5x higher than the lowest one.

  • Which airlines offer Wi-Fi on Philadelphia to Boston flights?

    Three airlines offer in-flight Wi-Fi on Philadelphia to Boston flights:

    • JetBlue
    • American Airlines
    • Delta

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

  • How are flight prices from Philadelphia to Boston looking right now?

    One-way fares from Philadelphia to Boston are currently lower than usual. Average one-way flight prices are about $134, which is 24% below the typical average for this route.

  • What car rental options are available at Boston Logan Intl Airport (BOS)?

    Boston Logan Intl Airport (BOS) hosts 5 major car rental companies, with daily rates starting from around $23 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Thrifty
    • Sixt

  • Which airports can I use when flying from Philadelphia to Boston?

    Flights from Philadelphia to Boston usually depart from Philadelphia (PHL) and arrive at Boston Logan Intl (BOS).

  • What time of day has the fewest delays on flights from Philadelphia to Boston?

    Morning flights have the fewest delays on this route, while evening departures tend to have the most.

  • At what point is a flight considered delayed from Philadelphia to Boston?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Philadelphia to Boston route, 17% of flights were delayed in the past 3 months, with delays averaging 2h 15m.

  • Which airports do connecting flights from Philadelphia to Boston pass through?

    One-stop flights from Philadelphia to Boston most commonly connect through:

    • Washington, D.C. Dulles Intl (IAD) - 29% of one-stop connections
    • Raleigh-Durham (RDU) - 29% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 14% of one-stop connections
    • Fort Lauderdale (FLL) - 14% of one-stop connections

  • Can I save money by using flexible dates for flights from Philadelphia to Boston?

    Yes. Flexible dates can save you up to 16% on flights from Philadelphia to Boston. Saturday is the cheapest departure day at $226 round-trip on average, while Monday is the most expensive at $266, a difference of $40.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What airlines fly from Philadelphia to Boston?

    3 airlines operate flights between Philadelphia and Boston. The airlines offering nonstop flights on this route include:

    • American Airlines
    • Delta
    • JetBlue

  • How much time can I save by choosing a different layover airport from Philadelphia to Boston?

    Flying via Washington, D.C. Dulles Intl (IAD) gives the shortest average 1-stop total travel time at 4h 01m, compared with 9h 08m via Atlanta Hartsfield-Jackson (ATL) and 9h 16m via Raleigh-Durham (RDU).

  • What popular places can I visit in Boston?

    Some of the most popular sights in Boston are TD Garden, Fenway Park and Boston Common. These are among the most viewed places in Boston on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Philadelphia to Boston flights?

    Among airlines operating Philadelphia to Boston flights:

    • JetBlue: offers extra legroom; offers free seat selection
    • American Airlines: offers extra legroom; offers free seat selection
    • Delta: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Philadelphia to Boston flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • American Airlines: a cabin bag and a checked bag in Economy Class
    • Delta: a cabin bag and a checked bag in Economy Class
    • JetBlue: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • Which PHL Airport terminal will you use on this route?

    American Airlines uses Terminal A-East or B/C. JetBlue uses Terminal D for baggage claim and gates and Terminal E for ticketing. Southwest Airlines uses Terminal E. United Airlines and Delta Air Lines operate from Terminal D.

  • How do you get from BOS Airport to downtown Boston?

    From BOS, Silver Line Bus SL1 departs from outside the terminals and takes around 20 minutes to reach downtown Boston. Taxis are also available outside the terminals.

  • Where can I pray at Boston Logan International Airport?

    Private prayer is available at the Our Lady of the Airways chapel. The chapel is located pre-security on the Arrivals level in Terminal C.

  • Where can I breastfeed my baby at Boston Logan International Airport?

    BOS has four Mamava pods. Two are in Terminal B, one is in Terminal C near the C/E connector and one is in Terminal E.

  • What are some of the special attractions at Philadelphia International Airport?

    PHL has no designated observation-deck area. Passengers can view the airfield from various locations.

  • What accessibility services are available at PHL?

    PHL offers accessible parking, wheelchair-accessible shuttle service and accessible restrooms throughout the airport. It also has the AIRA program for low-vision or blind travelers and the Hidden Disability Sunflower Lanyard program for travelers who need support.

  • Where can I let my pet relieve itself at Philadelphia International Airport?

    Indoor pet relief areas are near Gate A-16 in Terminal A-West and before the A/B connector in Terminal A-East. They are also on the B side of the A-B walkway in Terminal B and on the C side of the C-D walkway in Terminal C. Additional indoor areas are at Gate E-1 in Terminal E and just beyond the security checkpoint in Terminal F. In Terminal D, they are next to the United Club, next to Gate D-3 and between Gates D-4 and D-5. Outdoor relief areas are on the Departing Flights Road between Terminal A-West and A-East, between Terminal B/C ticketing and the Airport Communications Center and after Terminal E and Terminal F.

Your guide to booking Philadelphia to Boston flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Monday. On this route, Saturday flights average $226, about $40 less than Monday fares (15% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 26 weeks before you fly. On this route, that window historically saves about 48% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Philadelphia to Boston trip for January. Fares historically average $186 round-trip in that month - typically $95 less than the most expensive month, which is March (based on the last 12 months).
  • For the best chance of arriving on time, fly with Frontier. Over the past three months, 94% of Frontier flights from Philadelphia to Boston arrived on time, slightly above the route average of 83%. When flights on this route arrive late, they're delayed by an average of 2h 15m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Orlando Airport (MCO) can be cheaper than flying direct. The cheapest layover option averages $191 round-trip on this route - about $48 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Boston Logan Intl Airport.

    • Hyatt Regency Boston Harbor
    • Hilton Garden Inn Boston Logan Airport
    • Hilton Boston Logan Airport
  • From downtown Philadelphia, you can take the Airport Regional Rail Line to Philadelphia International Airport (PHL), about 7 miles away. Trains run about every half hour and stop at the airport terminals.
  • Compare flights on American Airlines, Delta Air Lines and JetBlue Airlines for this route. Philadelphia Airport is a hub for American Airlines, while Boston Airport is a hub for Delta Air Lines and a focus city for JetBlue Airlines.
  • At PHL, you can use Mamava nursing stations, find pet relief areas in all terminals or stop by the Quiet Room in the D-E Connector. If you want a place to relax while waiting for your flight, Minute Suites in the A-B Link offer a lounge option.
  • While you're at Philadelphia International Airport, check out the LEGO Liberty Bell in Terminal A-West. If you're traveling with kids, there's also a play area next to Gate A-1 in Terminal A-East and you can read or swap books in Terminal A-West.
  • If you need help at Philadelphia International Airport (PHL), stop by an information desk at the Terminal A-East intersection on Floor 2, the Terminal A-East baggage claim center on Floor 1 or the Terminal B intersection on Floor 2. You can also find desks at Gates A17/A18 on Floor 2, the Terminal C intersection on Floor 2 and the Terminal F food court on Floor 1. Staff at these desks can assist travelers and you can also look for airport ambassadors.
  • If you're flying with American Airlines, United or Delta from Philadelphia International Airport (PHL), you can wait in that airline's lounge before your flight. The United Club is between Concourse C and D and Delta Sky Club is in the Terminal D–E Connector. American Airlines Admirals Club has multiple locations, including in A-West, the B/C Connector and on the second level near the Food Court.
  • Driving to PHL? Use one of the on-site parking options, including the Economy Lot and the terminal parking garages.

Prefer to fly direct from Philadelphia to Boston?

 
Find which airlines fly direct from Philadelphia Airport to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

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

Direct returns

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

More options for your flight from Philadelphia to Boston

Complete your trip to Boston with a hotel stay or car rental