Cheap flights to Franklin County

View €175 flight on Sat, 31 Jan 2026Opens in a new window

Popular airlines to Franklin County

  • Aer Lingus

    Aer Lingus

  • Lufthansa

    Lufthansa

  • British Airways

    British Airways

  • Turkish Airlines

    Turkish Airlines

  • American Airlines

    American Airlines

  • Air Serbia

    Air Serbia

  • Swiss International Air Lines

    Swiss International Air Lines

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 15% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Franklin County

Prices were available within the past 7 days and start at €175 for one-way flights and €276 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 31 Jan - Mon, 2 Feb
SEA
Seattle
IDA
Idaho Falls
€276 Return, found 1 day ago
€276
Return
found 1 day ago
Select American Airlines flight, departing Sat, 31 Jan from Seattle to Idaho Falls, returning Mon, 2 Feb, priced at €276 found 1 day ago
Delta
Sat, 31 Jan - Mon, 2 Feb
SEA
Seattle
IDA
Idaho Falls
€298 Return, found 1 day ago
€298
Return
found 1 day ago
Select Delta flight, departing Sat, 31 Jan from Seattle to Idaho Falls, returning Mon, 2 Feb, priced at €298 found 1 day ago
American Airlines
Sat, 31 Jan - Mon, 2 Feb
SEA
Seattle
IDA
Idaho Falls
€302 Return, found 1 day ago
€302
Return
found 1 day ago
Select American Airlines flight, departing Sat, 31 Jan from Seattle to Idaho Falls, returning Mon, 2 Feb, priced at €302 found 1 day ago
American Airlines
Sat, 31 Jan - Mon, 2 Feb
SEA
Seattle
IDA
Idaho Falls
€349 Return, found 1 day ago
€349
Return
found 1 day ago
Select American Airlines flight, departing Sat, 31 Jan from Seattle to Idaho Falls, returning Mon, 2 Feb, priced at €349 found 1 day ago
Delta
Sat, 31 Jan - Mon, 2 Feb
SEA
Seattle
IDA
Idaho Falls
€359 Return, found 1 day ago
€359
Return
found 1 day ago
Select Delta flight, departing Sat, 31 Jan from Seattle to Idaho Falls, returning Mon, 2 Feb, priced at €359 found 1 day ago
Delta
Sat, 31 Jan - Mon, 2 Feb
SEA
Seattle
IDA
Idaho Falls
€360 Return, found 1 day ago
€360
Return
found 1 day ago
Select Delta flight, departing Sat, 31 Jan from Seattle to Idaho Falls, returning Mon, 2 Feb, priced at €360 found 1 day ago
United
Sat, 31 Jan - Mon, 2 Feb
SEA
Seattle
IDA
Idaho Falls
€395 Return, found 1 day ago
€395
Return
found 1 day ago
Select United flight, departing Sat, 31 Jan from Seattle to Idaho Falls, returning Mon, 2 Feb, priced at €395 found 1 day ago
Delta
Sat, 31 Jan - Mon, 2 Feb
SEA
Seattle
IDA
Idaho Falls
€409 Return, found 1 day ago
€409
Return
found 1 day ago
Select Delta flight, departing Sat, 31 Jan from Seattle to Idaho Falls, returning Mon, 2 Feb, priced at €409 found 1 day ago
Brussels Airlines
Wed, 28 Jan - Wed, 18 Feb
DUB
Dublin
IDA
Idaho Falls
€829 Return, found 1 day ago
€829
Return
found 1 day ago
Select Brussels Airlines flight, departing Wed, 28 Jan from Dublin to Idaho Falls, returning Wed, 18 Feb, priced at €829 found 1 day ago
KLM
Wed, 28 Jan - Wed, 18 Feb
DUB
Dublin
IDA
Idaho Falls
€917 Return, found 1 day ago
€917
Return
found 1 day ago
Select KLM flight, departing Wed, 28 Jan from Dublin to Idaho Falls, returning Wed, 18 Feb, priced at €917 found 1 day ago

About Franklin County

Expedia offers flights to Franklin County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Franklin County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

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, €276 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 €276 and €917. Many lucky travellers locked in one-way tickets from Seattle (SEA) for just €175.
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.
How much is a plane ticket to Franklin County?
In the last seven days, plane tickets to Franklin County fluctuated from €276 to €917.
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 10ºC to 27ºC across the season, so visit around then if you enjoy warmer weather.
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.

Trending flights to Franklin County

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

Brussels Airlines
Wed, 28 Jan - Wed, 18 Feb
DUB
Dublin
IDA
Idaho Falls
€829 Return, found 1 day ago
€829
Return
found 1 day ago
Select Brussels Airlines flight, departing Wed, 28 Jan from Dublin to Idaho Falls, returning Wed, 18 Feb, priced at €829 found 1 day ago
*Available to Expedia members.