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Cheap Flights from Boston to Philadelphia

Flying from Boston to Philadelphia

The distance between Boston and Philadelphia is approximately 449.32km. It takes around 1 hour 40 minutes on average to fly from Boston to Philadelphia. Based on Trip.com's data, travel demand peaks in January. The cheapest month to book is November.

Cheapest one-way
S$ 100
Delta Air Lines Delta Air Lines BOS-PHL 1h 38m · Direct Wed, Sep 2
View details
Cheapest return
S$ 223
Delta Air Lines Delta Air Lines BOS-PHL 1h 43m · Direct Sat, Jul 25 - Tue, Jul 28
View details
Recommended airlines
Delta Air Lines Delta Air LinesCheapest· From S$ 100 American Airlines American AirlinesMost booked
When to travel
July
Cheapest
January
Peak season for travel
Route details
449.32km
Flight distance
1h 40m
Average flight time

Explore the cheapest flights from Boston to Philadelphia in the next three months. Based on Trip.com's data from the latest 7 days, one-way direct flights start at S$ 100, and round-trip direct tickets start at S$ 223.

      • Cheapest nonstop
        BOS 15:10
        1h 43m
        Direct
        PHL 16:53
        Boston - Philadelphia | Sat, Jul 25 | Delta Air Lines
        PHL 06:00
        1h 30m
        Direct
        BOS 07:30
        Philadelphia - Boston | Tue, Jul 28 | Delta Air Lines
        S$ 223 S$ 660
        66% off
        66% off
        S$ 660 S$ 223
      • BOS 17:20
        1h 55m
        Direct
        PHL 19:15
        Boston - Philadelphia | Mon, Jul 27 | Delta Air Lines
        PHL 19:55
        1h 54m
        Direct
        BOS 21:49
        Philadelphia - Boston | Sat, Aug 1 | Delta Air Lines
        S$ 225 S$ 660
        66% off
        66% off
        S$ 660 S$ 225
      • BOS 06:50
        1h 40m
        Direct
        PHL 08:30
        Boston - Philadelphia | Fri, Jul 31 | Delta Air Lines
        PHL 06:00
        1h 30m
        Direct
        BOS 07:30
        Philadelphia - Boston | Tue, Aug 4 | Delta Air Lines
        S$ 229 S$ 660
        65% off
        65% off
        S$ 660 S$ 229
      • BOS 06:50
        1h 40m
        Direct
        PHL 08:30
        Boston - Philadelphia | Sat, Aug 29 | Delta Air Lines
        PHL 13:15
        1h 30m
        Direct
        BOS 14:45
        Philadelphia - Boston | Wed, Sep 2 | Delta Air Lines
        S$ 231
        65% off
        S$ 660 S$ 231
      • BOS 06:50
        1h 40m
        Direct
        PHL 08:30
        Boston - Philadelphia | Wed, Aug 5 | Delta Air Lines
        PHL 09:30
        1h 28m
        Direct
        BOS 10:58
        Philadelphia - Boston | Sun, Aug 9 | Delta Air Lines
        S$ 232
        65% off
        S$ 660 S$ 232
      • BOS 06:50
        1h 40m
        Direct
        PHL 08:30
        Boston - Philadelphia | Wed, Aug 26 | Delta Air Lines
        PHL 19:55
        1h 54m
        Direct
        BOS 21:49
        Philadelphia - Boston | Sat, Aug 29 | Delta Air Lines
        S$ 232
        65% off
        S$ 660 S$ 232
      • BOS 06:50
        1h 40m
        Direct
        PHL 08:30
        Boston - Philadelphia | Sat, Aug 1 | Delta Air Lines
        PHL 19:55
        1h 54m
        Direct
        BOS 21:49
        Philadelphia - Boston | Fri, Aug 7 | Delta Air Lines
        S$ 232
        65% off
        S$ 660 S$ 232
      • BOS 06:00
        1h 37m
        Direct
        PHL 07:37
        Boston - Philadelphia | Mon, Jul 27 | American Airlines
        PHL 07:18
        1h 25m
        Direct
        BOS 08:43
        Philadelphia - Boston | Sat, Aug 1 | American Airlines
        S$ 233
        65% off
        S$ 660 S$ 233
      • BOS 10:55
        1h 38m
        Direct
        PHL 12:33
        Boston - Philadelphia | Sat, Aug 22 | Delta Air Lines
        PHL 06:00
        1h 30m
        Direct
        BOS 07:30
        Philadelphia - Boston | Sat, Aug 29 | Delta Air Lines
        S$ 233
        65% off
        S$ 660 S$ 233
      • BOS 20:25
        1h 42m
        Direct
        PHL 22:07
        Boston - Philadelphia | Sun, Jul 26 | Delta Air Lines
        PHL 06:00
        1h 30m
        Direct
        BOS 07:30
        Philadelphia - Boston | Tue, Jul 28 | Delta Air Lines
        S$ 541
        18% off
        S$ 660 S$ 541
      • BOS 13:00
        17h 25m
        1 stop
        PHL 14:00
        Boston - Philadelphia | Sat, Jul 25 | Normal Airline
        PHL 15:00
        6h
        Direct
        BOS 16:00
        Philadelphia - Boston | Mon, Jul 27 | Normal Airline
        Find more flights
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      • Cheapest nonstop
        BOS 20:59
        1h 38m
        Direct
        PHL 22:37
        Boston - Philadelphia | Wed, Sep 2 | Delta Air Lines
        S$ 100 S$ 159
        37% off
        37% off
        S$ 159 S$ 100
      • BOS 20:35
        1h 41m
        Direct
        PHL 22:16
        Boston - Philadelphia | Wed, Sep 2 | American Airlines
        S$ 106 S$ 159
        33% off
        33% off
        S$ 159 S$ 106
      • BOS 06:04
        1h 34m
        Direct
        PHL 07:38
        Boston - Philadelphia | Wed, Sep 2 | Jetblue Airways
        S$ 108 S$ 159
        32% off
        32% off
        S$ 159 S$ 108
      • BOS 20:59
        1h 38m
        Direct
        PHL 22:37
        Boston - Philadelphia | Wed, Sep 9 | Delta Air Lines
        S$ 121
        24% off
        S$ 159 S$ 121
      • BOS 06:04
        1h 34m
        Direct
        PHL 07:38
        Boston - Philadelphia | Tue, Aug 4 | Jetblue Airways
        S$ 124
        22% off
        S$ 159 S$ 124
      • BOS 19:35
        1h 38m
        Direct
        PHL 21:13
        Boston - Philadelphia | Mon, Aug 31 | Delta Air Lines
        S$ 128
        19% off
        S$ 159 S$ 128
      • BOS 18:21
        1h 40m
        Direct
        PHL 20:01
        Boston - Philadelphia | Mon, Aug 24 | Jetblue Airways
        S$ 130
        18% off
        S$ 159 S$ 130
      • BOS 06:49
        1h 33m
        Direct
        PHL 08:22
        Boston - Philadelphia | Tue, Aug 25 | Jetblue Airways
        S$ 130
        18% off
        S$ 159 S$ 130
      • BOS 06:50
        1h 40m
        Direct
        PHL 08:30
        Boston - Philadelphia | Sat, Aug 8 | Delta Air Lines
        S$ 130
        18% off
        S$ 159 S$ 130
      • BOS 20:50
        1h 41m
        Direct
        PHL 22:31
        Boston - Philadelphia | Thu, Sep 17 | Delta Air Lines
        S$ 130
        18% off
        S$ 159 S$ 130
      • BOS 13:00
        17h 25m
        1 stop
        PHL 14:00
        Boston - Philadelphia | Sat, Jul 25 | Normal Airline
        Find more flights
        Find more flights

Popular airlines from Boston to Philadelphia

You can choose from 1 airlines that fly from Boston to Philadelphia, including American Airlines, Delta Air Lines offers the lowest prices on this route.
American Airlines logo American Airlines
Airlines are determined based on actual purchased flight tickets from Boston to Philadelphia according to previous 12 months data from Trip.com.

Trip.com Price Insights on Flights from Boston to Philadelphia.

What is the cheapest month for one-way flights from Boston to Philadelphia?

The average price of one-way flights from Boston to Philadelphia purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Boston to Philadelphia is July, with an average price of S$ 138, and the most expensive month is June, with an average price of up to S$ 282.

S$ 282
S$ 210
S$ 138
S$ 66
  • S$ 138
    Jul
  • S$ 231
    Aug
  • S$ 161
    Sep
  • S$ 195
    Oct
  • S$ 199
    Nov
  • S$ 181
    Dec
  • S$ 157
    Jan
  • S$ 220
    Feb
  • S$ 186
    Mar
  • S$ 207
    Apr
  • S$ 218
    May
  • S$ 282
    Jun

What is the cheapest month for round-trip flights from Boston to Philadelphia?

The average price of round-trip flights from Boston to Philadelphia purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for round-trip flights from Boston to Philadelphia is February, with an average price of S$ 166, and the most expensive month is November, with an average price of up to S$ 598.

S$ 598
S$ 382
S$ 166
0
    Cheapest
  • S$ 434
    Jul
  • S$ 310
    Aug
  • S$ 349
    Sep
  • S$ 227
    Oct
  • S$ 598
    Nov
  • S$ 215
    Dec
  • S$ 476
    Jan
  • S$ 166
    Feb
  • S$ 302
    Mar
  • S$ 478
    Apr
  • S$ 467
    May
  • S$ 299
    Jun

What is the cheapest day to fly from Boston to Philadelphia during National Day?

Based on Trip.com's data over the past 3 days, these are the lowest one-way airfares from Boston to Philadelphia during National Day.

National Day is scheduled on Aug 9. The flights from Boston to Philadelphia are cheapest on Aug 5, with the lowest fare of S$ 132.

S$ 140
S$ 136
S$ 132
S$ 128
  • S$ 132
    5
    Aug
  • S$ 133
    6
  • S$ 135
    7
  • S$ 133
    8
  • S$ 135
    9
  • S$ 140
    10
  • S$ 132
    11

Frequently Asked Questions

  • Which airlines offer the cheapest flights from Boston (BOS) to Philadelphia (PHL)?

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as S$ 100 on Cheapest nonstop routes (e.g. BOS to PHL on Wed, Sep 2), while Delta Air Lines offers Cheapest nonstop round-trips from S$ 223 departing on Sat, Jul 25 and returning on Tue, Jul 28.
  • At the moment, you can catch a direct flight from Boston to Philadelphia with the following airlines, including: American Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 1 hour 40 minutes to fly from Boston (BOS) to Philadelphia (PHL).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Boston to Philadelphia is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 85 flight per week flying from Boston to Philadelphia. You can check the weekly schedule for popular airlines on this route below: American Airlines: S/M/T/W/T/F/S -- AA3225 (09:47) American Airlines: S/M/T/W/T/F/S -- AA2764 (08:42)
  • To find best deals on flights from Boston to Philadelphia, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, Sep 2, with one-way flights priced at just S$ 100.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Philadelphia travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Boston to Philadelphia is November, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Boston to Philadelphia on July 29, 2026 with Frontier Airlines, with prices starting at S$ 124.
  • You can land at any one of the following hubs in Philadelphia, with Boston Logan International Airport to Philadelphia International Airport (BOS-PHL) is by far the most common option on this route: Philadelphia International Airport (PHL) Trenton Mercer Airport (TTN).
  • The time difference between Philadelphia and Boston is 0h.
  • Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

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Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.