$201+ Cheap flights from Philadelphia to Billings (PHL - BIL)
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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BIL
Aug 27 — Sep 31
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Billings 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
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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 Philadelphia to Billings
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Best
Last-minute
One-way
Cheapest flights from Philadelphia to BillingsExplore the most affordable flight options available from Philadelphia to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.
Explore the most affordable flight options available from Philadelphia to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.
This Delta deal was found by Cheapflights users on 7/27. 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.
Thu 11/127:15 am
PHL
- BIL
1 stop7h 03m
Delta
Mon 11/166:28 pm
BIL
- PHL
1 stop9h 32m
Delta
Deal found 7/27![Delta logo]()
$359
This Delta deal was found by Cheapflights users on 7/26. 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 8/266:55 pm
PHL
- BIL
1 stop6h 35m
Delta
Fri 9/46:24 pm
BIL
- PHL
1 stop9h 41m
Delta
Deal found 7/26![Delta logo]()
$380
This Delta deal was found by Cheapflights users on 7/26. 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.
Mon 9/77:20 am
PHL
- BIL
1 stop6h 55m
Delta
Mon 9/146:33 pm
BIL
- PHL
1 stop9h 32m
Delta
Deal found 7/26![Delta logo]()
$389
This Alaska Airlines deal was found by Cheapflights users on 7/23. 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.
Thu 9/244:48 pm
PHL
- BIL
1 stop24h 14m
Alaska Airlines
Mon 9/287:29 pm
BIL
- PHL
1 stop8h 11m
Alaska Airlines
Deal found 7/23![Alaska Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 7/26. 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 8/251:30 pm
PHL
- BIL
2 stops9h 30m
United Airlines
Tue 9/17:00 am
BIL
- PHL
2 stops8h 54m
United Airlines
Deal found 7/26![United Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 7/24. 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 9/1310:05 am
PHL
- BIL
1 stop9h 11m
United Airlines
Sat 9/192:29 pm
BIL
- PHL
1 stop7h 15m
United Airlines
Deal found 7/24![United Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 7/25. 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 11/1910:00 am
PHL
- BIL
1 stop9h 14m
United Airlines
Sun 11/227:00 am
BIL
- PHL
2 stops8h 42m
United Airlines
Deal found 7/25![United Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 7/24. 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 9/253:54 pm
PHL
- BIL
2 stops9h 21m
Delta
Sat 10/36:23 am
BIL
- PHL
1 stop6h 19m
Delta
Deal found 7/24![Delta logo]()
$404
This Delta deal was found by Cheapflights users on 7/27. 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.
Thu 10/157:20 am
PHL
- BIL
1 stop6h 58m
Delta
Tue 10/206:01 am
BIL
- PHL
1 stop6h 09m
Delta
Deal found 7/27![Delta logo]()
$424
Best flights from Philadelphia to BillingsDiscover carefully curated flight deals from Philadelphia to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
Discover carefully curated flight deals from Philadelphia to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
This Delta deal was found by Cheapflights users on 7/27. 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.
Mon 9/77:20 am
PHL
- BIL
1 stop6h 55m
Delta
Mon 9/146:33 pm
BIL
- PHL
1 stop9h 32m
Delta
Deal found 7/27![Delta logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 7/26. 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.
Thu 9/244:48 pm
PHL
- BIL
1 stop24h 14m
Alaska Airlines
Mon 9/287:29 pm
BIL
- PHL
1 stop8h 11m
Alaska Airlines
Deal found 7/26![Alaska Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 7/26. 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 8/266:55 pm
PHL
- BIL
1 stop6h 35m
Delta
Fri 9/46:24 pm
BIL
- PHL
1 stop9h 41m
Delta
Deal found 7/26![Delta logo]()
$380
This Alaska Airlines deal was found by Cheapflights users on 7/24. 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.
Thu 10/157:02 am
PHL
- BIL
1 stop13h 50m
Alaska Airlines
Tue 10/207:41 am
BIL
- PHL
1 stop20h 00m
Alaska Airlines
Deal found 7/24![Alaska Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 7/27. 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.
Thu 10/157:20 am
PHL
- BIL
1 stop6h 58m
Delta
Tue 10/206:01 am
BIL
- PHL
1 stop6h 09m
Delta
Deal found 7/27![Delta logo]()
$424
This Delta deal was found by Cheapflights users on 7/26. 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.
Thu 9/246:59 pm
PHL
- BIL
1 stop6h 16m
Delta
Mon 9/286:23 am
BIL
- PHL
2 stops12h 02m
Delta
Deal found 7/26![Delta logo]()
$435
This Delta deal was found by Cheapflights users on 7/24. 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 8/122:31 pm
PHL
- BIL
2 stops10h 59m
Delta
Tue 8/186:24 pm
BIL
- PHL
2 stops13h 14m
Delta
Deal found 7/24![Delta logo]()
$444
Last-minute flights from Philadelphia to BillingsDiscover last-minute flight deals from Philadelphia to Billings. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Billings. Data last updated July 28, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/23. 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 8/73:58 pm
PHL
- BIL
2 stops9h 32m
Delta
Tue 8/116:26 am
BIL
- PHL
1 stop6h 08m
Delta
Deal found 7/23![Delta logo]()
$464
This Delta deal was found by Cheapflights users on 7/24. 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 8/122:31 pm
PHL
- BIL
2 stops10h 59m
Delta
Tue 8/186:24 pm
BIL
- PHL
2 stops13h 14m
Delta
Deal found 7/24![Delta logo]()
$444
This American Airlines deal was found by Cheapflights users on 7/24. 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 8/205:43 am
PHL
- BIL
1 stop7h 07m
American Airlines
Wed 8/2612:22 pm
BIL
- PHL
1 stop8h 01m
American Airlines
Deal found 7/24![American Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 7/25. 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.
Thu 8/206:55 pm
PHL
- BIL
1 stop6h 35m
Delta
Mon 8/246:24 pm
BIL
- PHL
1 stop9h 41m
Delta
Deal found 7/25![Delta logo]()
$459
This American Airlines deal was found by Cheapflights users on 7/27. 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 8/234:28 pm
PHL
- BIL
1 stop8h 19m
American Airlines
Fri 8/2812:22 pm
BIL
- PHL
1 stop8h 01m
American Airlines
Deal found 7/27![American Airlines logo]()
$474
This United Airlines deal was found by Cheapflights users on 7/26. 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 8/253:48 pm
PHL
- BIL
1 stop7h 12m
United Airlines
Tue 9/15:07 am
BIL
- PHL
2 stops10h 47m
United Airlines
Deal found 7/26![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 7/26. 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 8/266:55 pm
PHL
- BIL
1 stop6h 35m
Delta
Fri 9/46:24 pm
BIL
- PHL
1 stop9h 41m
Delta
Deal found 7/26![Delta logo]()
$380
One-way flights from Philadelphia to BillingsSearch for one-way flight options from Philadelphia to Billings. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
Search for one-way flight options from Philadelphia to Billings. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Thu 9/176:00 am
PHL
- BIL
2 stops29h 59m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$201
This United Airlines deal was found by Cheapflights users on 7/27. 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 9/1710:05 am
PHL
- BIL
1 stop9h 11m
United Airlines
Deal found 7/27![United Airlines logo]()
$292
Find flight deals from Philadelphia to Billings
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Billings (BIL). 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 July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $359 (Delta) |
One-way from | $201 (Kiwi.com) |
Popular in | June |
Cheapest in | March |
Average price | $692 |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to Billings 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 July 28, 2026.
Use the filters below to find and compare flights from Philadelphia to Billings that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaBillings
PHL - BIL
PHLBIL
Philadelphia
Mon 9/7
7:20 am-12:15 pm
1 stop6h 55m
Billings Logan Intl
Mon 9/14
6:33 pm-6:05 am
1 stop9h 32m
$359
PhiladelphiaBillings
PHL - BIL
PHLBIL
Philadelphia
Wed 8/26
6:55 pm-11:30 pm
1 stop6h 35m
Billings Logan Intl
Fri 9/4
6:24 pm-6:05 am
1 stop9h 41m
$380
PhiladelphiaBillings
PHL - BIL
PHLBIL
Philadelphia
Thu 9/24
4:48 pm-3:02 pm
1 stop24h 14m
Billings Logan Intl
Mon 9/28
7:29 pm-5:40 am
1 stop8h 11m
$389
PhiladelphiaBillings
PHL - BIL
PHLBIL
Philadelphia
Thu 10/15
7:02 am-6:52 pm
1 stop13h 50m
Billings Logan Intl
Tue 10/20
7:41 am-5:41 am
1 stop20h 00m
$389
Quickest round-trip
PhiladelphiaBillings
PHL - BIL
PHLBIL
Philadelphia
Thu 10/15
7:20 am-12:18 pm
1 stop6h 58m
Billings Logan Intl
Tue 10/20
6:01 am-2:10 pm
1 stop6h 09m
$424
PhiladelphiaBillings
PHL - BIL
PHLBIL
Philadelphia
Thu 9/24
6:59 pm-11:15 pm
1 stop6h 16m
Billings Logan Intl
Mon 9/28
6:23 am-8:25 pm
2 stops12h 02m
$435
PhiladelphiaBillings
PHL - BIL
PHLBIL
Philadelphia
Wed 8/12
2:31 pm-11:30 pm
2 stops10h 59m
Billings Logan Intl
Tue 8/18
6:24 pm-9:38 am
2 stops13h 14m
$444
Cheapest one-way
PhiladelphiaBillings
PHL - BIL
PHLBIL
Philadelphia
Thu 9/17
6:00 am-4:21 pm
3 stops36h 21m
$228
Quickest one-way
PhiladelphiaBillings
PHL - BIL
PHLBIL
Philadelphia
Thu 9/17
10:05 am-5:16 pm
1 stop9h 11m
$292
Sorted by cheapest first
Compare providers for flights from Philadelphia to Billings
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 Billings in July.
| 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 Philadelphia-Billings flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Billings flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Billings flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Billings 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-Billings 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 Billings
Have a flexible travel schedule? Discover the best time to fly to Billings from Philadelphia with our price prediction graph.
PHL-BIL
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 Billings
Reviews of airlines servicing Billings
Get insights into the airlines that provide service to Billings. 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 Billings. Reviews last updated July 28, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Philadelphia to Billings to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
Entertainment
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Billings. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Other flights to Billings
Explore flights to Billings departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 28, 2026.
Complete your trip
Complete your trip to Billings by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Philadelphia to Billings by cabin class
Find flights from Philadelphia to Billings, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Philadelphia and Billings flights
Browse other Philadelphia and Billings flight options. Last updated on July 28, 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 July 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Philadelphia to Billings
Discover the top 3 airlines that operate flights from Philadelphia to Billings. 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 July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$348 | Average$516 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$400 | Average$619 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$404 | Average$562 | FlexibilityNo cancel fee | On-time69% |