Cheap Flights from Philadelphia International to Idaho Falls

Compare Philadelphia International to Idaho Falls flight deals

Find the cheapest month or even day of the year to fly to Idaho Falls

Book the best Idaho Falls fare with no extra fees

Flight deals from Philadelphia International to Idaho Falls

Looking for a cheap last-minute deal or the best return flight from Philadelphia International to Idaho Falls? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Philadelphia International to Idaho Falls

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia International to Idaho Falls flights are currently cheapest in February.

Philadelphia International to Idaho Falls: Alternative routes

Compare routes from Philadelphia International to Idaho Falls below. You may find an airport to fly into that's cheaper, faster, or easier than Idaho Falls.

Philadelphia to Idaho Falls: Flight information

The things to know before you go.
Cheapest flight foundR 3,030
Cheapest month to flyFebruary

Finding cheap flights from Philadelphia International to Idaho Falls: Frequently asked questions

The best price we found for a return flight from Philadelphia International to Idaho Falls is R 5,757. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Philadelphia International to Idaho Falls. But we found flights with one or more stops from R 5,757.
As of February 2026, there are no flights flying from Philadelphia International to Idaho Falls.
The cheapest month to fly from Philadelphia International to Idaho Falls is usually February.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Philadelphia International Airport to Idaho Falls Airport on Tuesday, 24 February 2026.
No airlines currently offer direct flights between Philadelphia International Airport and Idaho Falls Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Idaho Falls but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Idaho Falls is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Idaho Falls.

Flying from Philadelphia International Airport (PHL) to Idaho Falls Regional Airport (IDA): what you need to know

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Be at the airport with enough time to board your PHL to IDA flight.

  • Be prepared for bigger queues in popular months such as August. Arriving up to four hours ahead of international flights and two hours for domestic departures is a wise move.

  • Think about adding a stopover when booking your ticket from Philadelphia International Airport to Idaho Falls Regional Airport. Simply deselect 'Direct flights only' to break up your journey, or even explore someplace new along the way. Here's where you can stop between PHL and IDA:

    • Denver International Airport

    • Salt Lake City International Airport

    • Dallas/Fort Worth International Airport

How to find the cheapest flights from Philadelphia International Airport (PHL) to Idaho Falls Regional Airport (IDA)

  • R 3,030 is the lowest price for a one-way Philadelphia International Airport to Idaho Falls Regional Airport flight. Return flights start from R 5,757. These fares can change based on availability and demand.

  • To score cheap tickets from PHL to IDA, book in advance. Airlines tend to offer their most competitively priced fares when flights are first released.

  • The 'Whole month' search function shows you the cheapest flights from Philadelphia International Airport to Idaho Falls Regional Airport across each month. It's an easy way to snap up a bargain if your travel plans are flexible.

  • Landing cheap flights from PHL to IDA couldn't be easier with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch as soon as fares go down.

  • Tailor your flights using filters. Choose your ideal arrival and departure times, total journey duration and airlines. You can also sort results by 'Cheapest,' 'Best' or 'Fastest' flights from Philadelphia International Airport to Idaho Falls Regional Airport.

Handy information about Philadelphia International Airport (PHL)

  • PHL's address is Industrial Highway and Island Road.

  • Of all flights leaving Philadelphia International Airport, 78.93% arrive on time at their destination.

  • Central Philadelphia to Philadelphia International Airport is around 19 kilometres. Depending on traffic, it'll take you about 15 minutes to get there if you're ride-sharing, catching a cab or driving.

  • Expect a journey time of roughly 45 minutes when using public transport.

  • Need a convenient hotel close to PHL? If you've booked an early flight from Philadelphia International Airport to Idaho Falls Regional Airport, these accommodation options will put you moments from your check-in counter:

Arriving at Idaho Falls Regional Airport (IDA)

  • If you're coming in on a late Philadelphia International Airport to Idaho Falls Regional Airport flight, few things top the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and relaxing not long after at one of these hotels near IDA:

  • Begin your adventure by picking up an Idaho Falls Regional Airport rental car. Grab a set of wheels from Budget, Avis or Alamo and explore beyond Idaho Falls's usual tourist stops.

  • To get the lowest possible price, book your vehicle from Idaho Falls Regional Airport a few weeks in advance. Rates generally rise closer to your date of travel.

Getting from Idaho Falls Regional Airport (IDA) to central Idaho Falls

  • IDA is located at 2140 North Skyline.

  • Idaho Falls Regional Airport is approximately 5 kilometres from the centre of Idaho Falls. The drive time takes about 10 minutes.

  • If you're using public transport, expect a journey of around 1 hour.

When to fly to Idaho Falls Regional Airport (IDA)

  • The quietest month for a flight from Philadelphia International Airport to Idaho Falls Regional Airport is February, while July is the busiest. Pick the ideal time to go to Idaho Falls based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Lock in your flight from Philadelphia International Airport to Idaho Falls Regional Airport for July if you want to go to Idaho Falls during its warmest month. You can expect temperatures of between 11ºC (52ºF) and 35ºC (95ºF).

  • Search for cheap tickets from PHL to IDA in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between -15ºC (5ºF) and 1ºC (34ºF) on average.

Explore more of United States

  • You've visited Idaho Falls, now it's time to discover other parts of United States. Journey about 306 kilometres south to Salt Lake City to check off its popular sights. From Temple Square to Utah State Capitol and Red Butte Garden, you've got a jam-packed schedule ahead.

  • If you're looking to explore another great destination in United States, consider Boise, roughly 338 kilometres west of Idaho Falls. Idaho State Capitol Building, Old Idaho Penitentiary and Zoo Boise are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.