$116+ Cheap flights from Philadelphia to Boston (PHL - BOS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BOS
Oct 20 — Oct 271
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Boston with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Philadelphia to Boston Logan Intl are usually found in January or November, booked 57 days in advance, depart on a Friday or Thursday and return on a Thursday
Cheap flight deals from Philadelphia to Boston
Cheapest
Best
Last-minute
One-way
Cheapest flights from Philadelphia to BostonExplore the most affordable flight options available from Philadelphia to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 20, 2026.
Explore the most affordable flight options available from Philadelphia to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 20, 2026.
This Southwest deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/51:05 pm -
1 stop5h 50m
Mon 12/77:10 am -
1 stop7h 05m
Deal found 9/16![Southwest logo]()
$222
This Southwest deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:15 am -
1 stop9h 35m
Sat 10/249:40 am -
1 stop9h 40m
Deal found 9/17![Southwest logo]()
$226
This Southwest deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:25 pm -
1 stop9h 05m
Thu 11/55:20 am -
1 stop7h 50m
Deal found 9/17![Southwest logo]()
$228
This deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:42 am -
Nonstop1h 22m
Fri 10/97:59 am -
Nonstop1h 33m
Deal found 9/20![JetBlue logo]()
$232
This deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:57 pm -
Nonstop2h 01m
Fri 10/97:59 am -
Nonstop1h 33m
Deal found 9/20![JetBlue logo]()
$235
This Southwest deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/41:25 pm -
1 stop8h 15m
Tue 12/85:10 am -
1 stop8h 05m
Deal found 9/17![Southwest logo]()
$236
This Southwest deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:20 pm -
1 stop6h 45m
Sat 10/316:35 am -
1 stop11h 30m
Deal found 9/16![Southwest logo]()
$241
This Frontier deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/59:58 pm -
1 stop12h 15m
Mon 12/711:08 am -
1 stop13h 44m
Deal found 9/19![Frontier logo]()
$243
This Frontier deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/49:58 pm -
1 stop12h 15m
Sun 12/611:08 am -
1 stop11h 41m
Deal found 9/20![Frontier logo]()
$246
This KAYAK deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:19 pm -
Nonstop2h 11m
Wed 10/217:59 am -
Nonstop1h 33m
Deal found 9/18![JetBlue logo]()
$249
This Frontier deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/39:58 pm -
1 stop12h 13m
Sun 12/611:34 am -
1 stop11h 31m
Deal found 9/19![Frontier logo]()
$253
This deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am -
Nonstop1h 21m
Mon 9/287:59 am -
Nonstop1h 32m
Deal found 9/18![JetBlue logo]()
$254
Best flights from Philadelphia to BostonDiscover carefully curated flight deals from Philadelphia to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 20, 2026.
Discover carefully curated flight deals from Philadelphia to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 20, 2026.
This Southwest deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/211:20 pm -
1 stop5h 15m
Fri 10/236:05 pm -
1 stop5h 50m
Deal found 9/15![Southwest logo]()
$236
This JetBlue deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:57 pm -
Nonstop2h 01m
Wed 10/78:30 pm -
Nonstop1h 34m
Deal found 9/20![JetBlue logo]()
$290
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/13:57 pm -
Nonstop2h 01m
Mon 10/511:36 am -
1 stop21h 54m
Deal found 9/15![Multiple Airlines logo]()
$296
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:00 am -
1 stop4h 19m
Fri 11/205:30 am -
1 stop4h 19m
Deal found 9/17![United Airlines logo]()
$315
This JetBlue deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:22 am -
Nonstop1h 22m
Sun 10/119:29 pm -
Nonstop1h 33m
Deal found 9/16![JetBlue logo]()
$295
This United Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:15 am -
1 stop4h 17m
Sun 10/185:45 am -
1 stop3h 48m
Deal found 9/20![United Airlines logo]()
$352
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:15 am -
1 stop4h 17m
Thu 10/225:45 am -
1 stop3h 58m
Deal found 9/16![United Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:40 pm -
1 stop4h 19m
Tue 10/277:31 am -
1 stop6h 48m
Deal found 9/17![United Airlines logo]()
$385
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:08 pm -
1 stop7h 46m
Sat 10/2410:36 am -
1 stop8h 48m
Deal found 9/16![United Airlines logo]()
$385
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/31:24 pm -
1 stop8h 34m
Wed 10/712:45 pm -
1 stop6h 57m
Deal found 9/18![United Airlines logo]()
$405
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:10 pm -
1 stop5h 44m
Sun 10/115:45 am -
1 stop3h 47m
Deal found 9/16![United Airlines logo]()
$417
Last-minute flights from Philadelphia to BostonDiscover last-minute flight deals from Philadelphia to Boston. Data last updated September 20, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Boston. Data last updated September 20, 2026 and is based on user searches.
This deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2010:42 am -
Nonstop1h 22m
Tue 9/221:30 pm -
Nonstop1h 32m
Deal found 9/19![JetBlue logo]()
$255
This deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am -
Nonstop1h 21m
Mon 9/287:59 am -
Nonstop1h 32m
Deal found 9/18![JetBlue logo]()
$254
This deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:42 am -
Nonstop1h 22m
Fri 10/97:59 am -
Nonstop1h 33m
Deal found 9/20![JetBlue logo]()
$232
This deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:57 pm -
Nonstop2h 01m
Fri 10/97:59 am -
Nonstop1h 33m
Deal found 9/20![JetBlue logo]()
$235
This deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:30 am -
Nonstop1h 20m
Fri 10/97:59 am -
Nonstop1h 33m
Deal found 9/20![JetBlue logo]()
$236
This Southwest deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:15 am -
1 stop9h 35m
Sat 10/249:40 am -
1 stop9h 40m
Deal found 9/17![Southwest logo]()
$226
This Expedia deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:22 am -
Nonstop1h 22m
Sat 10/2411:42 am -
1 stop6h 33m
Deal found 9/17![Multiple Airlines logo]()
$266
This KAYAK deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:19 pm -
Nonstop2h 11m
Wed 10/217:59 am -
Nonstop1h 33m
Deal found 9/18![JetBlue logo]()
$249
This CheapOair deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:19 pm -
Nonstop2h 11m
Tue 10/2711:12 am -
1 stop7h 07m
Deal found 9/17![Multiple Airlines logo]()
$265
This CheapOair deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:45 pm -
1 stop17h 17m
Mon 10/2611:47 am -
1 stop21h 43m
Deal found 9/18![Frontier logo]()
$253
This Southwest deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:20 pm -
1 stop6h 45m
Wed 10/2810:55 am -
1 stop7h 00m
Deal found 9/16![Southwest logo]()
$222
This Southwest deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:20 pm -
1 stop6h 45m
Sat 10/316:35 am -
1 stop11h 30m
Deal found 9/16![Southwest logo]()
$241
One-way flights from Philadelphia to BostonSearch for one-way flight options from Philadelphia to Boston. Find affordable one-way fares based on user searches. Data last updated September 20, 2026.
Search for one-way flight options from Philadelphia to Boston. Find affordable one-way fares based on user searches. Data last updated September 20, 2026.
This Southwest deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:15 am -
1 stop9h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Southwest logo]()
$116
This Southwest deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:25 am -
1 stop7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/91:50 pm -
1 stop8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Southwest logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/112:12 pm -
1 stop22h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Allegiant Air logo]()
$121
This Cheapflightsfares deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/175:30 am -
1 stop6h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$123
This Frontier deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/69:58 pm -
1 stop12h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/133:57 pm -
1 stop16h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Allegiant Air logo]()
$126
This CheapOair deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:30 pm -
1 stop19h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$129
This Southwest deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:20 pm -
1 stop6h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Southwest logo]()
$131
This Cheapflightsfares deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/226:10 am -
1 stop26h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Frontier logo]()
$132
Find flight deals from Philadelphia to Boston
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $222 (Southwest) |
One-way from | $116 (Southwest) |
Popular in | March |
Cheapest in | January |
Average price | $265 |
Good round-trip deal | $253 or less |
Good one-way deal | $176 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to Boston 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, Cheapflights users made 7,457,451 searches. Data last updated September 20, 2026.
Use the filters below to find and compare flights from Philadelphia to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaBoston
PHL Philadelphia - BOS Boston Logan Intl
PHLBOS
Philadelphia
Mon 10/12
6:00 am-7:26 am
Nonstop1h 26m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$148
PhiladelphiaBoston
PHL Philadelphia - BOS Boston Logan Intl
PHLBOS
Philadelphia
Mon 3/15
6:00 am-7:35 am
Nonstop1h 35m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$148
PhiladelphiaBoston
PHL Philadelphia - BOS Boston Logan Intl
PHLBOS
Philadelphia
Thu 3/18
6:00 am-7:35 am
Nonstop1h 35m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$148
PhiladelphiaBoston
PHL Philadelphia - BOS Boston Logan Intl
PHLBOS
Philadelphia
Fri 10/16
7:30 pm-11:59 pm
1 stop4h 29m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$158
PhiladelphiaBoston
PHL Philadelphia - BOS Boston Logan Intl
PHLBOS
Philadelphia
Wed 3/10
11:30 am-7:45 pm
1 stop8h 15m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$158
PhiladelphiaBoston
PHL Philadelphia - BOS Boston Logan Intl
PHLBOS
Philadelphia
Sun 2/7
6:00 am-10:11 am
1 stop4h 11m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$158
PhiladelphiaBoston
PHL Philadelphia - BOS Boston Logan Intl
PHLBOS
Philadelphia
Tue 9/29
10:40 am-2:55 pm
1 stop4h 15m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$158
PhiladelphiaBoston
PHL Philadelphia - BOS Boston Logan Intl
PHLBOS
Philadelphia
Thu 10/22
6:15 am-10:32 am
1 stop4h 17m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$164
PhiladelphiaBoston
PHL Philadelphia - BOS Boston Logan Intl
PHLBOS
Philadelphia
Mon 3/15
8:00 pm-11:54 pm
1 stop3h 54m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$193
PhiladelphiaBoston
PHL Philadelphia - BOS Boston Logan Intl
PHLBOS
Philadelphia
Tue 10/13
11:25 am-6:35 pm
1 stop7h 10m
Boston Logan Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$203
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Philadelphia to Boston
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Boston in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Philadelphia-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Boston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Philadelphia to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from Philadelphia with our price prediction graph.
PHL-BOS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to Boston
Prices
Airlines
Delays
How far ahead should I book a flight from Philadelphia to Boston?
To ensure you get the cheapest price possible for a flight from Philadelphia to Boston, you should look to book at least 56 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Philadelphia to Boston?
Currently, January is the cheapest month in which you can book a flight from Philadelphia to Boston (average of $188). Flying from Philadelphia to Boston in March is currently the most expensive (average of $281). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PHL to BOS?
Find hourly flight availability from Philadelphia to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 20, 2026.
It’s typically best to fly out from Philadelphia to Boston in the morning. Doing so could potentially save you 59% on the flight price compared to flying in the afternoon, which is usually more expensive.
What is the cheapest day to fly from Philadelphia to Boston?
Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Boston. Price data was last updated on September 19, 2026.
Travelers seeking maximum savings on their Philadelphia to Boston flight should consider departing on Friday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Philadelphia to Boston delayed?
About 17% of weekly flights between Philadelphia and Boston have experienced delays in the past year, with the average delay time being 129 minutes.
What is the most punctual flight time for Philadelphia to Boston flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Philadelphia to Boston flights?
Over the last year, Delta have had the lowest number of delays on this route, with just 14% of flights being delayed.
The best insider tips for Philadelphia to Boston flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Philadelphia to Boston trip
Our travel experts
Reviews of airlines servicing Boston
Get insights into the airlines that provide service to Boston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boston. Reviews last updated September 20, 2026.
See what other customers who have flown with Delta,JetBlue, andAmerican Airlines from Philadelphia to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Crew
8.5
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Crew
8.5
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Crew
8.5
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Crew
8.5
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodColin,Sep 2024
LHR - BOS
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsWaltham
Randolph
Concord
Cambridge
Brockton
Dedham
Cranston
Revere
Warwick
Pawtucket
Peabody
Auburn
Londonderry
York Beach
Fitchburg
North Falmouth
Swansea
Chelsea
Braintree
Sandwich
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Alternative routes for Philadelphia to Boston
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Other flights to Boston
Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 20, 2026.
Complete your trip
Complete your trip to Boston by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Philadelphia to Boston by cabin class
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Philadelphia and Boston flights
Browse other Philadelphia and Boston flight options. Last updated on September 20, 2026.
Other flights from Philadelphia
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on September 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Philadelphia to Boston
Discover the top 4 airlines that operate flights from Philadelphia to Boston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$38 | Average$106 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$93 | Average$214 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$107 | Average$223 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$147 | Average$303 | FlexibilityNo cancel fee | On-time71% |