$412 Cheap Flights from Philadelphia (PHL) to Twin Falls (TWF)

View $412 flight on Sat, Dec 6, 2025Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Twin Falls, ID (TWF)

Cheap Flights from Philadelphia to Twin Falls (PHL-TWF)

Prices were available within the past 7 days and start at $412 for one-way flights and $463 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Dec 9 - Thu, Dec 25
PHL
Philadelphia
TWF
Twin Falls
$463 Roundtrip, found 2 days ago
$463
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Dec 9 from Philadelphia to Twin Falls, returning Thu, Dec 25, priced at $463 found 2 days ago
Delta
Sat, Dec 6 - Thu, Dec 25
PHL
Philadelphia
TWF
Twin Falls
$473 Roundtrip, found 2 days ago
$473
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Dec 6 from Philadelphia to Twin Falls, returning Thu, Dec 25, priced at $473 found 2 days ago
Delta
Wed, Dec 3 - Tue, Dec 16
PHL
Philadelphia
TWF
Twin Falls
$482 Roundtrip, found 2 days ago
$482
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Dec 3 from Philadelphia to Twin Falls, returning Tue, Dec 16, priced at $482 found 2 days ago
Delta
Thu, Dec 4 - Tue, Dec 16
PHL
Philadelphia
TWF
Twin Falls
$492 Roundtrip, found 2 days ago
$492
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Dec 4 from Philadelphia to Twin Falls, returning Tue, Dec 16, priced at $492 found 2 days ago
Delta
Sat, Nov 22 - Wed, Dec 10
PHL
Philadelphia
TWF
Twin Falls
$512 Roundtrip, found 2 days ago
$512
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Nov 22 from Philadelphia to Twin Falls, returning Wed, Dec 10, priced at $512 found 2 days ago
Delta
Thu, Jun 25 - Mon, Jun 29
PHL
Philadelphia
TWF
Twin Falls
$513 Roundtrip, found 7 hours ago
$513
Roundtrip
found 7 hours ago
Select Delta flight, departing Thu, Jun 25 from Philadelphia to Twin Falls, returning Mon, Jun 29, priced at $513 found 7 hours ago
Delta
Thu, Nov 27 - Wed, Dec 10
PHL
Philadelphia
TWF
Twin Falls
$517 Roundtrip, found 2 days ago
$517
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Nov 27 from Philadelphia to Twin Falls, returning Wed, Dec 10, priced at $517 found 2 days ago
Delta
Sat, Nov 22 - Sat, Dec 13
PHL
Philadelphia
TWF
Twin Falls
$522 Roundtrip, found 2 days ago
$522
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Nov 22 from Philadelphia to Twin Falls, returning Sat, Dec 13, priced at $522 found 2 days ago
Delta
Sat, Dec 6 - Sun, Dec 21
PHL
Philadelphia
TWF
Twin Falls
$523 Roundtrip, found 2 days ago
$523
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Dec 6 from Philadelphia to Twin Falls, returning Sun, Dec 21, priced at $523 found 2 days ago
Delta
Thu, Nov 27 - Sat, Dec 13
PHL
Philadelphia
TWF
Twin Falls
$527 Roundtrip, found 2 days ago
$527
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Nov 27 from Philadelphia to Twin Falls, returning Sat, Dec 13, priced at $527 found 2 days ago

Alternative airports near Twin Falls

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

Select flight to Twin Falls, ID TWF. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $732
TWF
Twin Falls, ID
CheapestClosest
Average driving time to city center11 min
Flights from $732

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Twin Falls Airport (TWF) cost?
Lock in a cheap one-way flight from $412 or cheap return flight from $463 from Philadelphia Intl. Airport (PHL) to Twin Falls Airport (TWF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Philadelphia Intl. Airport (PHL) to Twin Falls Airport (TWF)?
The cheapest month to fly from PHL to TWF is December, when demand is low. Off-peak season is generally when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to Twin Falls Airport (TWF)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PHL to TWF flight.
How many flights per day from Philadelphia Intl. Airport (PHL) to Twin Falls Airport (TWF)?
You'll need to take a flight with a layover if you're traveling from Philadelphia Intl. Airport (PHL) to Twin Falls Airport (TWF). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from PHL to TWF?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to Twin Falls Airport (TWF)?
To avoid possible delays on the Philadelphia Intl. Airport (PHL) to Twin Falls Airport (TWF) route, aim to travel before 3 PM. Later flights have a 22% higher chance of cancellation.**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 Philadelphia Intl. Airport (PHL) to Twin Falls Airport (TWF) last-minute?
Last-minute bookings from PHL to TWF are typically more expensive. To secure the cheapest rates, start looking for flights well in advance. That being said, if you can play around with your travel dates, it's possible to score a cheap fare right before your trip.
Is it cheaper to book a PHL to TWF flight and hotel package?
You'll generally save money by securing a PHL to TWF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your preferred accommodations and flights, consider adding extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to Twin Falls Airport (TWF)?
Typically, it's possible to cancel or reschedule your PHL to TWF flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Twin Falls
Airlines serving
Delta
Roundtrip price
$462
Distance
2030 mi

Book with confidence

Philadelphia to Twin Falls Flights

The cheapest times to fly from Philadelphia to Twin Falls

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 Philadelphia to Twin Falls are during the month of December. You can find some of the cheapest flights from Philadelphia to Twin Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to Twin Falls

Sunday is one of the best days to book for cheap flights from Philadelphia to Twin Falls: 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 Philadelphia to Twin Falls

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 Philadelphia to Twin Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $412 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 Philadelphia to Twin Falls 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 Philadelphia to Twin Falls 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.

 

Philadelphia to Twin Falls Flights

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*Available to One Key members.