$190+ Cheap flights from Billings to Philadelphia (BIL - PHL)
This is the cheapest one-way 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.
BIL — PHL
Sep 15 — Sep 221
Round-trip
1 adult, Economy
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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.Cheap flight deals from Billings to Philadelphia
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Best
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Cheapest flights from Billings to PhiladelphiaExplore the most affordable flight options available from Billings to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2026.
Explore the most affordable flight options available from Billings to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 16, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:32 pm -
1 stop8h 09m
Wed 10/286:41 pm -
1 stop18h 44m
Deal found 8/14![Alaska Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Wed 10/212:28 pm -
1 stop6h 52m
Wed 10/2810:54 am -
2 stops12h 20m
Deal found 8/13![United Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:35 am -
2 stops10h 43m
Fri 10/307:55 am -
2 stops14h 20m
Deal found 8/12![Delta logo]()
$389
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:01 am -
2 stops11h 17m
Wed 10/287:55 am -
2 stops14h 20m
Deal found 8/14![Delta logo]()
$400
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/133:44 pm -
1 stop21h 30m
Wed 10/146:41 pm -
1 stop18h 44m
Deal found 8/12![Alaska Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1212:28 pm -
1 stop6h 42m
Wed 9/167:00 am -
1 stop6h 57m
Deal found 8/13![American Airlines logo]()
$434
This Delta deal was found by Cheapflights users on 8/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:29 pm -
2 stops13h 00m
Tue 10/275:20 am -
2 stops8h 58m
Deal found 8/15![Delta logo]()
$439
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:22 pm -
1 stop8h 01m
Mon 8/313:06 pm -
1 stop9h 41m
Deal found 8/12![American Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 8/12. 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 8/272:29 pm -
1 stop7h 15m
Mon 8/311:30 pm -
2 stops9h 30m
Deal found 8/12![United Airlines logo]()
$454
Best flights from Billings to PhiladelphiaDiscover carefully curated flight deals from Billings to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 16, 2026.
Discover carefully curated flight deals from Billings to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 16, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:32 pm -
1 stop8h 09m
Wed 10/286:41 pm -
1 stop18h 44m
Deal found 8/16![Alaska Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 8/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:28 pm -
1 stop6h 52m
Wed 10/286:15 am -
2 stops9h 14m
Deal found 8/15![United Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:35 am -
2 stops10h 43m
Fri 10/307:55 am -
2 stops14h 20m
Deal found 8/12![Delta logo]()
$389
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:01 am -
2 stops11h 17m
Wed 10/287:55 am -
2 stops14h 20m
Deal found 8/14![Delta logo]()
$400
This United Airlines deal was found by Cheapflights users on 8/12. 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 8/272:29 pm -
1 stop7h 15m
Mon 8/311:30 pm -
2 stops9h 30m
Deal found 8/12![United Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 8/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:30 am -
1 stop7h 03m
Thu 10/2910:00 am -
1 stop7h 22m
Deal found 8/15![United Airlines logo]()
$479
Last-minute flights from Billings to PhiladelphiaDiscover last-minute flight deals from Billings to Philadelphia. Data last updated August 16, 2026 and is based on user searches.
Discover last-minute flight deals from Billings to Philadelphia. Data last updated August 16, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:00 am -
2 stops9h 50m
Mon 8/314:28 pm -
1 stop8h 19m
Deal found 8/13![American Airlines logo]()
$494
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:22 pm -
1 stop8h 01m
Mon 8/313:06 pm -
1 stop9h 41m
Deal found 8/12![American Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 8/12. 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 8/272:29 pm -
1 stop7h 15m
Mon 8/311:30 pm -
2 stops9h 30m
Deal found 8/12![United Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 9/15:07 am -
1 stop8h 43m
Sat 9/123:48 pm -
1 stop9h 05m
Deal found 8/13![United Airlines logo]()
$514
This United Airlines deal was found by Cheapflights users on 8/16. 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 9/42:29 pm -
1 stop7h 15m
Mon 9/78:00 am -
1 stop9h 24m
Deal found 8/16![United Airlines logo]()
$523
This American Airlines deal was found by Cheapflights users on 8/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:22 pm -
1 stop6h 00m
Mon 9/77:30 am -
1 stop6h 20m
Deal found 8/15![American Airlines logo]()
$525
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1212:28 pm -
1 stop6h 42m
Wed 9/167:00 am -
1 stop6h 57m
Deal found 8/13![American Airlines logo]()
$434
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:29 pm -
1 stop8h 11m
Mon 9/214:48 pm -
1 stop24h 14m
Deal found 8/13![Alaska Airlines logo]()
$379
One-way flights from Billings to PhiladelphiaSearch for one-way flight options from Billings to Philadelphia. Find affordable one-way fares based on user searches. Data last updated August 16, 2026.
Search for one-way flight options from Billings to Philadelphia. Find affordable one-way fares based on user searches. Data last updated August 16, 2026.
This United Airlines deal was found by Cheapflights users on 8/14. 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 10/172:28 pm -
1 stop6h 52m
Deal found 8/14![United Airlines logo]()
$190
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Sun 9/67:00 am -
2 stops12h 43m
Deal found 8/16![United Airlines logo]()
$195
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:26 am -
1 stop6h 08m
Deal found 8/13![Delta logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/1110:49 am -
3 stops34h 29m
Deal found 8/13![Multiple Airlines logo]()
$234
This United Airlines deal was found by Cheapflights users on 8/12. 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 10/55:57 pm -
2 stops13h 45m
Deal found 8/12![United Airlines logo]()
$245
This United Airlines deal was found by Cheapflights users on 8/13. 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 8/2810:30 am -
2 stops12h 29m
Deal found 8/13![United Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 8/284:00 pm -
3 stops23h 12m
Deal found 8/13![Multiple Airlines logo]()
$303
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/131:13 pm -
1 stop9h 09m
Deal found 8/12![American Airlines logo]()
$343
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:22 pm -
1 stop8h 01m
Deal found 8/11![American Airlines logo]()
$391
This Booking.com deal was found by Cheapflights users on 8/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:29 pm -
2 stops18h 16m
Deal found 8/11![Alaska Airlines logo]()
$393
Find flight deals from Billings to Philadelphia
Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to Philadelphia (PHL). 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 August 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $379 (Alaska Airlines) |
One-way from | $190 (United Airlines) |
Popular in | October |
Cheapest in | June |
Average price | $635 |
Cheapflights Fare Finder
Customize your flight search to find flights from Billings to Philadelphia 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 2,558,603 searches. Data last updated August 16, 2026.
Use the filters below to find and compare flights from Billings to Philadelphia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BillingsPhiladelphia
BIL Billings Logan Intl - PHL Philadelphia
BILPHL
Billings Logan Intl
Wed 10/21
7:32 pm-5:41 am
1 stop8h 09m
Philadelphia
Wed 10/28
6:41 pm-11:25 am
1 stop18h 44m
$379
BillingsPhiladelphia
BIL Billings Logan Intl - PHL Philadelphia
BILPHL
Billings Logan Intl
Wed 10/21
2:28 pm-11:20 pm
1 stop6h 52m
Philadelphia
Wed 10/28
6:15 am-1:29 pm
2 stops9h 14m
$384
BillingsPhiladelphia
BIL Billings Logan Intl - PHL Philadelphia
BILPHL
Billings Logan Intl
Wed 10/21
5:35 am-6:18 pm
2 stops10h 43m
Philadelphia
Fri 10/30
7:55 am-8:15 pm
2 stops14h 20m
$389
BillingsPhiladelphia
BIL Billings Logan Intl - PHL Philadelphia
BILPHL
Billings Logan Intl
Wed 10/21
6:01 am-7:18 pm
2 stops11h 17m
Philadelphia
Wed 10/28
7:55 am-8:15 pm
2 stops14h 20m
$400
BillingsPhiladelphia
BIL Billings Logan Intl - PHL Philadelphia
BILPHL
Billings Logan Intl
Thu 8/27
2:29 pm-11:44 pm
1 stop7h 15m
Philadelphia
Mon 8/31
1:30 pm-9:00 pm
2 stops9h 30m
$454
Quickest round-trip
BillingsPhiladelphia
BIL Billings Logan Intl - PHL Philadelphia
BILPHL
Billings Logan Intl
Tue 10/20
10:30 am-7:33 pm
1 stop7h 03m
Philadelphia
Thu 10/29
10:00 am-3:22 pm
1 stop7h 22m
$479
Cheapest one-way
BillingsPhiladelphia
BIL Billings Logan Intl - PHL Philadelphia
BILPHL
Billings Logan Intl
Sat 10/17
2:28 pm-11:20 pm
1 stop6h 52m
$190
BillingsPhiladelphia
BIL Billings Logan Intl - PHL Philadelphia
BILPHL
Billings Logan Intl
Sun 9/6
2:29 pm-11:44 pm
1 stop7h 15m
$190
BillingsPhiladelphia
BIL Billings Logan Intl - PHL Philadelphia
BILPHL
Billings Logan Intl
Sat 9/12
2:29 pm-11:44 pm
1 stop7h 15m
$190
BillingsPhiladelphia
BIL Billings Logan Intl - PHL Philadelphia
BILPHL
Billings Logan Intl
Fri 9/11
2:29 pm-11:44 pm
1 stop7h 15m
$190
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from Billings to Philadelphia
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 Billings to Philadelphia in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Billings-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billings-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billings-Philadelphia flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Billings-Philadelphia 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 Billings-Philadelphia 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 Billings to Philadelphia
Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Billings with our price prediction graph.
BIL-PHL
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.
Reviews of airlines servicing Philadelphia
Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated August 16, 2026.
Peruse reviews from past customers who have flown with Delta and American Airlines from Billings to Philadelphia to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Comfort
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.8
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Billings to Philadelphia. 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 Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsWildwood
King of Prussia
Reading
Camden
Wildwood Crest
Ocean City
Cherry Hill
Lewes
Plymouth Meeting
Wyomissing
Pottstown
Ephrata
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Vineland
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Billings and Philadelphia flights
Browse other Billings and Philadelphia flight options. Last updated on August 16, 2026.
Other flights from Billings
Browse through other flights departing from Billings. Flights are based on user searches made on Cheapflights and were last updated on August 16, 2026.
Other flights to Philadelphia
Explore flights to Philadelphia departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Billings to Philadelphia
Discover the top 2 airlines that operate flights from Billings to Philadelphia. 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 2,558,603 searches. Data last updated August 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$189 | Average$475 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$309 | Average$523 | FlexibilityNo cancel fee | On-time71% |