$201 Cheap Flights from Billings (BIL) to Philadelphia (PHL)

View $201 flight on Tue, Oct 7, 2025Opens in a new window

Popular airlines from Billings Logan Intl. Airport (BIL) to Philadelphia Intl. Airport (PHL)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Billings to Philadelphia (BIL-PHL)

Prices were available within the past 7 days and start at $201 for one-way flights and $394 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bargain Flight
Wed, Oct 22 - Mon, Oct 27
BIL
Billings
PHL
Philadelphia
$394 Roundtrip, found 6 days ago
$394
Roundtrip
found 6 days ago
Select Bargain Flight flight, departing Wed, Oct 22 from Billings to Philadelphia, returning Mon, Oct 27, priced at $394 found 6 days ago
Bargain Flight
Tue, Oct 14 - Tue, Oct 21
BIL
Billings
PHL
Philadelphia
$400 Roundtrip, found 1 day ago
$400
Roundtrip
found 1 day ago
Select Bargain Flight flight, departing Tue, Oct 14 from Billings to Philadelphia, returning Tue, Oct 21, priced at $400 found 1 day ago
Hawaiian Airlines
Wed, Oct 29 - Mon, Nov 10
BIL
Billings
PHL
Philadelphia
$400 Roundtrip, found 6 days ago
$400
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Wed, Oct 29 from Billings to Philadelphia, returning Mon, Nov 10, priced at $400 found 6 days ago
United
Tue, Sep 23 - Wed, Oct 1
BIL
Billings
PHL
Philadelphia
$401 Roundtrip, found 22 hours ago
$401
Roundtrip
found 22 hours ago
Select United flight, departing Tue, Sep 23 from Billings to Philadelphia, returning Wed, Oct 1, priced at $401 found 22 hours ago
Alaska Airlines
Wed, Oct 22 - Mon, Oct 27
BIL
Billings
PHL
Philadelphia
$404 Roundtrip, found 6 days ago
$404
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Oct 22 from Billings to Philadelphia, returning Mon, Oct 27, priced at $404 found 6 days ago
American Airlines
Mon, Jan 12 - Tue, Jan 20
BIL
Billings
PHL
Philadelphia
$404 Roundtrip, found 3 days ago
$404
Roundtrip
found 3 days ago
Select American Airlines flight, departing Mon, Jan 12 from Billings to Philadelphia, returning Tue, Jan 20, priced at $404 found 3 days ago
Delta
Wed, Nov 5 - Sun, Nov 9
BIL
Billings
PHL
Philadelphia
$406 Roundtrip, found 15 hours ago
$406
Roundtrip
found 15 hours ago
Select Delta flight, departing Wed, Nov 5 from Billings to Philadelphia, returning Sun, Nov 9, priced at $406 found 15 hours ago
Alaska Airlines
Tue, Sep 23 - Wed, Oct 1
BIL
Billings
PHL
Philadelphia
$407 Roundtrip, found 22 hours ago
$407
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Tue, Sep 23 from Billings to Philadelphia, returning Wed, Oct 1, priced at $407 found 22 hours ago
Delta
Tue, Dec 2 - Wed, Dec 10
BIL
Billings
PHL
Philadelphia
$409 Roundtrip, found 17 hours ago
$409
Roundtrip
found 17 hours ago
Select Delta flight, departing Tue, Dec 2 from Billings to Philadelphia, returning Wed, Dec 10, priced at $409 found 17 hours ago
Bargain Flight
Fri, Nov 14 - Mon, Nov 17
BIL
Billings
PHL
Philadelphia
$414 Roundtrip, found 5 hours ago
$414
Roundtrip
found 5 hours ago
Select Bargain Flight flight, departing Fri, Nov 14 from Billings to Philadelphia, returning Mon, Nov 17, priced at $414 found 5 hours ago

Find the cheapest month to fly from Billings (BIL) to Philadelphia (PHL)

February is typically the cheapest month to fly

From $354 - $874 per traveler.

Graph displaying average flight prices per month

Alternative airports near Philadelphia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Philadelphia Intl. PHL. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $486
PHL
Philadelphia Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $486
Flights from Billings (BIL) to Philadelphia (PHL)
Origin airport
Logan Intl.
Destination airport
Philadelphia Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$393
Distance
1722 mi

Billings to Philadelphia Flights

The cheapest times to fly from Billings to Philadelphia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Billings to Philadelphia are during the month of October. You can find some of the cheapest flights from Billings to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Billings to Philadelphia

Sunday is one of the best days to book for cheap flights from Billings to Philadelphia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Billings to Philadelphia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Billings to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $201 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Billings to Philadelphia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Billings to Philadelphia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Logan Intl. Airport (BIL) to Philadelphia Intl. Airport (PHL) cost?
Lock in a cheap one-way flight from $201 or cheap return flight from $394 from Logan Intl. Airport (BIL) to Philadelphia Intl. Airport (PHL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Logan Intl. Airport (BIL) to Philadelphia Intl. Airport (PHL)?
October is the least expensive month to fly from BIL to PHL. Avoiding peak travel times is often the key to better flight prices.
What is the cheapest airline that flies from Logan Intl. Airport (BIL) to Philadelphia Intl. Airport (PHL)?
To find the cheapest airline flying from BIL to PHL, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Logan Intl. Airport (BIL) to Philadelphia Intl. Airport (PHL)?
Nonstop flights from Logan Intl. Airport (BIL) to Philadelphia Intl. Airport (PHL) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BIL to PHL?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on a number of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BIL) to Philadelphia Intl. Airport (PHL)?
Select a flight from Logan Intl. Airport (BIL) to Philadelphia Intl. Airport (PHL) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BIL) to Philadelphia Intl. Airport (PHL) last-minute?
Booking your flight from BIL to PHL shortly before your journey is generally more expensive. However, if you're flexible with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a BIL to PHL flight and hotel package?
Compared with arranging hotels and flights separately, booking a BIL to PHL flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place will take the stress out of planning your trip. Just pick your flights and select from our wide range of hotels, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Logan Intl. Airport (BIL) to Philadelphia Intl. Airport (PHL)?
In most cases, you're able to cancel or reschedule your BIL to PHL flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you want further information, visit our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.