Cheap Flights to Franklin County from $79

View $79 flight on Thu, Mar 12, 2026Opens in a new window

Popular airlines to Franklin County

  • American Airlines

    American Airlines

  • United

    United

  • Southwest Airlines

    Southwest Airlines

  • Delta

    Delta

  • Frontier Airlines

    Frontier Airlines

  • JetBlue Airways

    JetBlue Airways

  • Alaska Airlines

    Alaska Airlines

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How much is the cheapest flight to Franklin County?

Prices were available within the past 7 days and start at $79 for one-way flights and $117 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, May 16 - Wed, May 20
PDX
Portland
IDA
Idaho Falls
$117 Roundtrip, found 9 hours ago
$117
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Sat, May 16 from Portland to Idaho Falls, returning Wed, May 20, priced at $117 found 9 hours ago
Delta
Tue, Feb 3 - Sat, Feb 7
PDX
Portland
IDA
Idaho Falls
$137 Roundtrip, found 6 hours ago
$137
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Feb 3 from Portland to Idaho Falls, returning Sat, Feb 7, priced at $137 found 6 hours ago
Hawaiian Airlines
Wed, Feb 4 - Tue, Feb 24
PDX
Portland
IDA
Idaho Falls
$157 Roundtrip, found 1 day ago
$157
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Wed, Feb 4 from Portland to Idaho Falls, returning Tue, Feb 24, priced at $157 found 1 day ago
Alaska Airlines
Mon, Feb 9 - Sun, Feb 15
PDX
Portland
IDA
Idaho Falls
$167 Roundtrip, found 1 day ago
$167
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Mon, Feb 9 from Portland to Idaho Falls, returning Sun, Feb 15, priced at $167 found 1 day ago
Delta
Tue, Feb 3 - Wed, Feb 4
PDX
Portland
IDA
Idaho Falls
$167 Roundtrip, found 6 hours ago
$167
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Feb 3 from Portland to Idaho Falls, returning Wed, Feb 4, priced at $167 found 6 hours ago
Alaska Airlines
Thu, Mar 12 - Sun, Mar 15
PDX
Portland
IDA
Idaho Falls
$173 Roundtrip, found 1 day ago
$173
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Mar 12 from Portland to Idaho Falls, returning Sun, Mar 15, priced at $173 found 1 day ago
Delta
Tue, Feb 10 - Thu, Feb 12
PDX
Portland
IDA
Idaho Falls
$177 Roundtrip, found 1 day ago
$177
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Feb 10 from Portland to Idaho Falls, returning Thu, Feb 12, priced at $177 found 1 day ago
Delta
Wed, Mar 25 - Sat, Apr 4
PDX
Portland
IDA
Idaho Falls
$183 Roundtrip, found 5 hours ago
$183
Roundtrip
found 5 hours ago
Select Delta flight, departing Wed, Mar 25 from Portland to Idaho Falls, returning Sat, Apr 4, priced at $183 found 5 hours ago
United
Thu, Jan 22 - Thu, Jan 29
SJC
San Jose
IDA
Idaho Falls
$288 Roundtrip, found 5 days ago
$288
Roundtrip
found 5 days ago
Select United flight, departing Thu, Jan 22 from San Jose to Idaho Falls, returning Thu, Jan 29, priced at $288 found 5 days ago
American Airlines
Thu, Feb 5 - Sat, Feb 14
SFO
San Francisco
IDA
Idaho Falls
$328 Roundtrip, found 2 days ago
$328
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Feb 5 from San Francisco to Idaho Falls, returning Sat, Feb 14, priced at $328 found 2 days ago

Enjoy extra legroom, flight flexibility, and a seamless travel experience.

Franklin County Flights Information

Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, American Airlines, United
Roundtrip price
from $117

Frequently asked questions

How do I find cheap flights to Franklin County that have flexible change policies?
Search for bargain flights to Franklin County, then tick the "No change fee" box below the "Flexible change policies" subheading. It really is that easy. We know that plans can change and flexibility is important, so book with confidence with Expedia.
Which airlines fly to Franklin County?
Dig out your suitcase and take your pick of these well-known airlines that have flights into or near Franklin County:

  • Delta Air Lines - 6,400 flights to or near Franklin County each month, including 6,400 flights to Salt Lake City Intl. Airport (SLC) per month.
  • Southwest Airlines - 676 flights to or near Franklin County each month, including 676 flights to Salt Lake City Intl. Airport (SLC) per month.
  • United Airlines - 563 flights to or near Franklin County each month, including 563 flights to Salt Lake City Intl. Airport (SLC) per month.

How can I find cheap tickets to Franklin County?
A great strategy for scoring cheap fares is to be flexible with your dates. Begin with searching for your flight to Franklin County, then click on the "flexible dates" link for a list of prices for nearby days. Another handy tip? Book well ahead. For an idea of fares, $117 was the best price for a flight to Franklin County in the last seven days.
How much is a flight to Franklin County?
There were plenty of low-cost fares for the taking in the last seven days, with the price of a return ticket to Franklin County varying between $117 and $328. Many lucky travelers locked in one-way tickets from Portland (PDX) for just $79.
What are the most popular airports to fly into in Franklin County?
Jet into Salt Lake City Intl. Airport (SLC) and experience everything that Franklin County has to offer. As the region's primary entry point, around 8,676 flights land here each month.
When is the cheapest time to fly to Franklin County?
Jet off on a Tuesday to improve your chances of picking up the cheapest flight to Franklin County. Mondays are usually the second most affordable day to take off. Saturday is generally the priciest day to fly anywhere.
How much is a plane ticket to Franklin County?
In the last seven days, plane tickets to Franklin County fluctuated from $117 to $328.
What months are the cheapest to book a flight to Franklin County?
February is the ideal month to snap up an awesome deal to Franklin County. Be aware that the costliest time to purchase tickets in the U.S. Isn't during the height of summer, but in December.
How long is a flight to Franklin County?
It depends on a number of things, such as where you depart from and whether you're traveling on a direct or multi-stop flight. Below are some of the most popular domestic routes to Franklin County and their average flight times:

  • Denver, CO (DEN-Denver Intl.) to Salt Lake City Intl. Airport (SLC) - 1 hour and 38 minutes
  • Los Angeles, CA (LAX-Los Angeles Intl.) to Salt Lake City Intl. Airport (SLC) - 1 hour and 55 minutes
  • Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Salt Lake City Intl. Airport (SLC) - 2 hours and 46 minutes

What is the best time to go to Franklin County?
June, July and August are popular months to explore the wonders of Preston, one of Franklin County's most fascinating cities. Summer here starts June 20. Average temperatures range from 50ºF to 80ºF across the season, so visit around then if you enjoy warmer weather.

Trending flights to Franklin County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Mar 14 - Wed, Mar 18
SEA
Seattle
IDA
Idaho Falls
$157 Roundtrip, found 6 hours ago
$157
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Sat, Mar 14 from Seattle to Idaho Falls, returning Wed, Mar 18, priced at $157 found 6 hours ago
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