$399 Cheap Flights from Idaho Falls (IDA) to Rome (FCO)

View $399 flight on Fri, Dec 5, 2025Opens in a new window

Popular airlines from Idaho Falls Regional Airport (IDA) to Fiumicino - Leonardo da Vinci Intl. Airport (FCO)

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Cheap Flights from Idaho Falls to Rome (IDA-FCO)

Prices were available within the past 7 days and start at $399 for one-way flights and $507 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Feb 5 - Tue, Feb 24
IDA
Idaho Falls
FCO
Rome
$507 Roundtrip, found 4 days ago
$507
Roundtrip
found 4 days ago
Select United flight, departing Thu, Feb 5 from Idaho Falls to Rome, returning Tue, Feb 24, priced at $507 found 4 days ago
United
Sat, Feb 7 - Tue, Feb 24
IDA
Idaho Falls
FCO
Rome
$510 Roundtrip, found 4 days ago
$510
Roundtrip
found 4 days ago
Select United flight, departing Sat, Feb 7 from Idaho Falls to Rome, returning Tue, Feb 24, priced at $510 found 4 days ago
Delta
Mon, Dec 1 - Mon, Dec 8
IDA
Idaho Falls
FCO
Rome
$511 Roundtrip, found 2 days ago
$511
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Dec 1 from Idaho Falls to Rome, returning Mon, Dec 8, priced at $511 found 2 days ago
United
Tue, Jan 20 - Mon, Feb 2
IDA
Idaho Falls
FCO
Rome
$514 Roundtrip, found 4 days ago
$514
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jan 20 from Idaho Falls to Rome, returning Mon, Feb 2, priced at $514 found 4 days ago
Delta
Sun, Feb 1 - Fri, Feb 13
IDA
Idaho Falls
FCO
Rome
$515 Roundtrip, found 4 days ago
$515
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Feb 1 from Idaho Falls to Rome, returning Fri, Feb 13, priced at $515 found 4 days ago
Delta
Tue, Feb 10 - Tue, Feb 24
IDA
Idaho Falls
FCO
Rome
$516 Roundtrip, found 4 days ago
$516
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Feb 10 from Idaho Falls to Rome, returning Tue, Feb 24, priced at $516 found 4 days ago
Delta
Tue, Feb 10 - Wed, Feb 25
IDA
Idaho Falls
FCO
Rome
$518 Roundtrip, found 4 days ago
$518
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Feb 10 from Idaho Falls to Rome, returning Wed, Feb 25, priced at $518 found 4 days ago
American Airlines
Thu, Jan 8 - Tue, Jan 27
IDA
Idaho Falls
FCO
Rome
$552 Roundtrip, found 4 days ago
$552
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Jan 8 from Idaho Falls to Rome, returning Tue, Jan 27, priced at $552 found 4 days ago
KLM
Sun, Jan 11 - Thu, Jan 29
IDA
Idaho Falls
FCO
Rome
$698 Roundtrip, found 4 days ago
$698
Roundtrip
found 4 days ago
Select KLM flight, departing Sun, Jan 11 from Idaho Falls to Rome, returning Thu, Jan 29, priced at $698 found 4 days ago
Air France
Thu, Apr 16 - Fri, May 1
IDA
Idaho Falls
FCO
Rome
$1,218 Roundtrip, found 3 hours ago
$1,218
Roundtrip
found 3 hours ago
Select Air France flight, departing Thu, Apr 16 from Idaho Falls to Rome, returning Fri, May 1, priced at $1,218 found 3 hours ago
Flights from Idaho Falls (IDA) to Rome (FCO)
Origin airport
Idaho Falls Regional
Destination airport
Fiumicino - Leonardo da Vinci Intl.
Airlines serving
Air France, American Airlines, Delta, KLM, United
Roundtrip price
$507
Distance
5605 mi

Idaho Falls to Rome Flights

The cheapest times to fly from Idaho Falls to Rome

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

 

The best time to book a flight from Idaho Falls to Rome

Sunday is one of the best days to book for cheap flights from Idaho Falls to Rome: 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 Idaho Falls to Rome

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 Idaho Falls to Rome in 2025. You can also book with separate airlines for your outbound and return journeys, from $399 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 Idaho Falls to Rome 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 Idaho Falls to Rome 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 Idaho Falls Regional Airport (IDA) to Fiumicino - Leonardo da Vinci Intl. Airport (FCO) cost?
Grab a cheap one-way flight from $399 or cheap return flight from $507 from Idaho Falls Regional Airport (IDA) to Fiumicino - Leonardo da Vinci Intl. Airport (FCO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Idaho Falls Regional Airport (IDA) to Fiumicino - Leonardo da Vinci Intl. Airport (FCO)?
February is the most affordable month to fly from IDA to FCO. Timing your trip outside of the busy season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Idaho Falls Regional Airport (IDA) to Fiumicino - Leonardo da Vinci Intl. Airport (FCO)?
To find the cheapest airline that'll fly you from IDA to FCO, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Idaho Falls Regional Airport (IDA) to Fiumicino - Leonardo da Vinci Intl. Airport (FCO)?
There are no daily nonstop flights departing from Idaho Falls Regional Airport (IDA) to Fiumicino - Leonardo da Vinci Intl. Airport (FCO). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from IDA to FCO?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Idaho Falls Regional Airport (IDA) to Fiumicino - Leonardo da Vinci Intl. Airport (FCO)?
Select a flight from Idaho Falls Regional Airport (IDA) to Fiumicino - Leonardo da Vinci Intl. Airport (FCO) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this time 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 Idaho Falls Regional Airport (IDA) to Fiumicino - Leonardo da Vinci Intl. Airport (FCO) last-minute?
Holding off until just before your departure to book a flight from IDA to FCO often results in higher prices. While you may come across some last-minute discounts, they aren't always guaranteed. Be flexible with your itinerary for a better chance of getting a bargain.
Is it cheaper to book an IDA to FCO flight and hotel package?
Securing an IDA to FCO flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Select from our extensive range of hotels and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Idaho Falls Regional Airport (IDA) to Fiumicino - Leonardo da Vinci Intl. Airport (FCO)?
Typically, you can cancel or modify your IDA to FCO flight. However, additional charges may apply, especially if you booked over 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you want more information, head to our Customer Service portal.

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*Available to One Key members.