$121 Cheap United flights Sacramento (SMF) to Idaho Falls (IDA)

View $121 flight on Mon, Jul 21, 2025Opens in a new window

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$121 Cheap United flights Sacramento (SMF) to Idaho Falls (IDA)

Prices were available within the past 7 days and start at $121 for one-way flights and $241 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Oct 30 - Thu, Nov 13
SMF
Sacramento
IDA
Idaho Falls
$241 Roundtrip, found 21 hours ago
$241
Roundtrip
found 21 hours ago
Select United flight, departing Thu, Oct 30 from Sacramento to Idaho Falls, returning Thu, Nov 13, priced at $241 found 21 hours ago
United
Thu, Aug 14 - Tue, Aug 19
SMF
Sacramento
IDA
Idaho Falls
$244 Roundtrip, found 1 day ago
$244
Roundtrip
found 1 day ago
Select United flight, departing Thu, Aug 14 from Sacramento to Idaho Falls, returning Tue, Aug 19, priced at $244 found 1 day ago
United
Tue, Jul 29 - Tue, Aug 5
SMF
Sacramento
IDA
Idaho Falls
$251 Roundtrip, found 5 days ago
$251
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jul 29 from Sacramento to Idaho Falls, returning Tue, Aug 5, priced at $251 found 5 days ago
United
Thu, Oct 30 - Thu, Nov 13
SMF
Sacramento
IDA
Idaho Falls
$254 Roundtrip, found 21 hours ago
$254
Roundtrip
found 21 hours ago
Select United flight, departing Thu, Oct 30 from Sacramento to Idaho Falls, returning Thu, Nov 13, priced at $254 found 21 hours ago
United
Thu, Oct 30 - Thu, Nov 13
SMF
Sacramento
IDA
Idaho Falls
$255 Roundtrip, found 21 hours ago
$255
Roundtrip
found 21 hours ago
Select United flight, departing Thu, Oct 30 from Sacramento to Idaho Falls, returning Thu, Nov 13, priced at $255 found 21 hours ago
United
Wed, Aug 20 - Thu, Aug 21
SMF
Sacramento
IDA
Idaho Falls
$262 Roundtrip, found 3 days ago
$262
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 20 from Sacramento to Idaho Falls, returning Thu, Aug 21, priced at $262 found 3 days ago
Flights from Sacramento (SMF) to Idaho Falls (IDA)
Origin airport
Sacramento Intl.
Destination airport
Idaho Falls Regional
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Popular airline
Alaska Airlines
Distance
596 mi

Frequently asked questions

How much is a United Airlines flight from Sacramento Intl. Airport (SMF) to Idaho Falls Regional Airport (IDA)?
Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines round-trip flights from $241 from SMF to IDA. Affordable one-way tickets from $121 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SMF to IDA with United Airlines?
Look for round-trip or one-way flights to Idaho Falls in January or February. You could find an affordable fare with United Airlines during these off-peak travel months.
What is the cheapest time to book flights from Sacramento Intl. Airport (SMF) to Idaho Falls Regional Airport (IDA) with United Airlines?
Start searching one to three months before your departure to get cheap fares on United Airlines flights from Sacramento Intl. Airport (SMF) to Idaho Falls Regional Airport (IDA). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Sacramento Intl. Airport (SMF) to Idaho Falls Regional Airport (IDA)?
Select our "Nonstop" filter when browsing for direct United Airlines flights from SMF to IDA. You'll also be able to compare other carriers offering the same direct route.
What is the earliest United Airlines flight from SMF to IDA?
To find the earliest departure from SMF to IDA with United Airlines, sort your results by "Early Morning" and "Morning." Booking an early flight usually means cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Idaho Falls?
Jump on a United Airlines flight from Sacramento Intl. Airport (SMF) to Idaho Falls, and you'll probably come in to Idaho Falls Regional Airport (IDA). This is the airline's primary hub in this destination.
Why fly with United Airlines from SMF to IDA?
A rewarding loyalty program and the ability to collect points through United Mileage Plus are the start of the reasons to travel from SMF to IDA with United Airlines. Plus, when you join Expedia's free One Key™ program, you can receive OneKeyCash™* alongside any airline loyalty program earnings. It's yours to spend on your next adventure.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Sacramento Intl. Airport (SMF) to Idaho Falls Regional Airport (IDA)?
Depending on the ticket type you purchased, a fee generally applies if you cancel or change your flight more than 24 hours after it's confirmed. To find flexible fares, select our "No cancel fee" or "Changes included" filter when you look for flights. For more information on canceling or modifying your reservation, go to "Trips," select your flight and tick "Manage Booking."

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