HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Billings

$378+ Cheap flights from Philadelphia to Billings (PHL - BIL)

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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BIL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

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 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 September 11, 2025.

Round-trip from

$378
(American Airlines)

Popular in

January

Cheapest in

August

Average price

$512
From Philadelphia to Billings Logan Intl
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Philadelphia to Billings

Cheapest flights from Philadelphia to Billings
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 September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/10. 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 10/147:38 amPHL - BIL
1 stop6h 12mAmerican Airlines
Tue 10/2112:20 pmBIL - PHL
1 stop17h 42mAmerican Airlines
Deal found 9/10$378
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/187:38 amPHL - BIL
1 stop6h 12mAmerican Airlines
Tue 10/2112:20 pmBIL - PHL
1 stop17h 42mAmerican Airlines
Deal found 9/10$400
This Hawaiian Airlines deal was found by Cheapflights users on 9/11. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:02 amPHL - BIL
1 stop9h 58mHawaiian Airlines
Wed 11/196:00 amBIL - PHL
1 stop10h 12mHawaiian Airlines
Deal found 9/11$420
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:59 pmPHL - BIL
1 stop6h 20mDelta
Wed 11/1911:42 amBIL - PHL
2 stops11h 09mDelta
Deal found 9/11$426
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1111:16 amPHL - BIL
2 stops10h 26mDelta
Thu 10/166:15 pmBIL - PHL
1 stop9h 35mDelta
Deal found 9/11$427
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/145:20 pmPHL - BIL
2 stops7h 58mDelta
Tue 10/2111:45 amBIL - PHL
2 stops11h 07mDelta
Deal found 9/11$431
This Delta deal was found by Cheapflights users on 9/10. 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.
Sat 10/1812:23 pmPHL - BIL
2 stops12h 42mDelta
Tue 10/2111:45 amBIL - PHL
2 stops11h 07mDelta
Deal found 9/10$432
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/243:40 pmPHL - BIL
1 stop9h 06mUnited Airlines
Tue 9/307:00 amBIL - PHL
1 stop7h 00mUnited Airlines
Deal found 9/8$442
This Delta deal was found by Cheapflights users on 9/9. 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.
Sun 11/96:47 pmPHL - BIL
1 stop7h 02mDelta
Sun 11/166:25 amBIL - PHL
1 stop5h 31mDelta
Deal found 9/9$443
This Delta deal was found by Cheapflights users on 9/8. 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 9/2412:17 pmPHL - BIL
2 stops12h 18mDelta
Tue 9/306:25 amBIL - PHL
1 stop5h 35mDelta
Deal found 9/8$447
This Delta deal was found by Cheapflights users on 9/9. 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.
Sun 11/166:47 pmPHL - BIL
1 stop7h 02mDelta
Sun 11/236:25 amBIL - PHL
2 stops11h 04mDelta
Deal found 9/9$448

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 September 11, 2025.
Use the filters below to find and compare flights from Philadelphia to Billings that are best for you.

Fly from

Philadelphia

Fly to

Billings

Route

Depart

Return

Price

PhiladelphiaBillings

PHL - BIL

PHLBIL

Philadelphia

Tue 10/14

1:45 pm-9:53 pm

2 stops10h 08m

Billings Logan Intl

Tue 10/21

12:20 pm-12:16 am

1 stop9h 56m

$383

PhiladelphiaBillings

PHL - BIL

PHLBIL

Philadelphia

Sat 10/18

7:38 am-11:50 am

1 stop6h 12m

Billings Logan Intl

Tue 10/21

12:20 pm-8:02 am

1 stop17h 42m

$400

PhiladelphiaBillings

PHL - BIL

PHLBIL

Philadelphia

Tue 10/14

7:00 am-3:04 pm

1 stop10h 04m

Billings Logan Intl

Tue 10/21

7:15 pm-5:40 am

1 stop8h 25m

$420

PhiladelphiaBillings

PHL - BIL

PHLBIL

Philadelphia

Wed 11/12

7:02 am-3:00 pm

1 stop9h 58m

Billings Logan Intl

Wed 11/19

6:00 am-6:12 pm

1 stop10h 12m

$420

PhiladelphiaBillings

PHL - BIL

PHLBIL

Philadelphia

Wed 11/12

12:40 pm-9:18 pm

2 stops10h 38m

Billings Logan Intl

Wed 11/19

5:00 am-3:42 pm

1 stop8h 42m

$426

PhiladelphiaBillings

PHL - BIL

PHLBIL

Philadelphia

Tue 10/14

7:00 pm-11:18 pm

1 stop6h 18m

Billings Logan Intl

Tue 10/21

6:15 pm-9:30 am

2 stops13h 15m

$426

PhiladelphiaBillings

PHL - BIL

PHLBIL

Philadelphia

Sat 10/18

6:30 am-11:16 am

1 stop6h 46m

Billings Logan Intl

Tue 10/21

10:39 am-12:45 am

2 stops12h 06m

$427

PhiladelphiaBillings

PHL - BIL

PHLBIL

Philadelphia

Sat 10/11

11:16 am-7:42 pm

2 stops10h 26m

Billings Logan Intl

Thu 10/16

6:15 pm-5:50 am

1 stop9h 35m

$427

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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.
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

What is the cheapest month to book a flight from Philadelphia to Billings?

Currently, January is the cheapest month in which you can book a flight from Philadelphia to Billings (average of $396). Flying from Philadelphia to Billings in June is currently the most expensive (average of $510). 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 BIL?

Find hourly flight availability from Philadelphia to Billings. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Philadelphia to Billings in the afternoon. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the morning.

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 September 11, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American 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.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • How long is the flight from Philadelphia to Billings?

    There are many flights that can get you from Philadelphia to Billings in 10h 04m. Fly via American Airlines or Hawaiian Airlines to get the fastest option. There are 1722 mi between Philadelphia and Billings. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Philadelphia to Billings round-trip?

    Our cheapest airline available from Philadelphia to Billings is Delta. Our recent data shows that you can find tickets from as low as $317 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $400 and $430 round-trip. Delta is 49% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Philadelphia to Billings that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Billings flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Billings?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Billings.

  • Can I find deals for business class flights from Philadelphia to Billings?

    Yes. Cheapflights offers flight deals from Philadelphia to Billings by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Billings?

    Currently, January is the cheapest month in which you can book a flight from Philadelphia to Billings (average of $396). Flying from Philadelphia to Billings in June is currently the most expensive (average of $510). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Billings

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Bozeman flights
John F Kennedy Intl to Bozeman flights
LaGuardia to Bozeman flights
Dulles Intl to Bozeman flights
Reagan-National to Bozeman flights
John F Kennedy Intl to Kalispell flights
Newark to Kalispell flights
Philadelphia to Bozeman flights
John F Kennedy Intl to Missoula flights
LaGuardia to Kalispell flights
Dulles Intl to Missoula flights
Newark to Missoula flights
Pittsburgh to Bozeman flights
LaGuardia to Missoula flights
Dulles Intl to Kalispell flights
Dulles Intl to Great Falls flights
Reagan-National to Missoula flights
Reagan-National to Kalispell flights
Reagan-National to Great Falls flights
John F Kennedy Intl to Billings flights
Philadelphia to Kalispell flights
LaGuardia to Billings flights
John F Kennedy Intl to Helena flights
Newark to Billings flights
Dulles Intl to Billings flights
Dulles Intl to Helena flights
Pittsburgh to Kalispell flights
Harrisburg to Bozeman flights
Harrisburg to Missoula flights
Philadelphia to Missoula flights
Newark to Helena flights
Reagan-National to Billings flights
Reagan-National to Helena flights
Newark to Great Falls flights
Philadelphia to Great Falls flights
LaGuardia to Helena flights
Newark to West Yellowstone flights
Pittsburgh to Missoula flights
Dulles Intl to West Yellowstone flights
John F Kennedy Intl to Great Falls flights
State College to Bozeman flights
Pittsburgh to Billings flights
Allentown to Missoula flights
LaGuardia to West Yellowstone flights
Newark to Cody flights
Pittsburgh to Great Falls flights
Allentown to Bozeman flights
Newark to Butte flights
Dulles Intl to Butte flights

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$317Average$470FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$400Average$535FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$430Average$643FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.