£91 Cheap Flights to Jefferson County

Popular airlines to Jefferson County

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • United

    United

  • American Airlines

    American Airlines

  • Hawaiian Airlines

    Hawaiian Airlines

  • KLM

    KLM

  • Aeromexico

    Aeromexico

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 25% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Jefferson County

Prices were available within the past 7 days and start at £91 for one-way flights and £181 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, 30 Oct - Wed, 5 Nov
LAX
Los Angeles
IDA
Idaho Falls
£181 Return, found 6 hours ago
£181
Return
found 6 hours ago
Select Alaska Airlines flight, departing Thu, 30 Oct from Los Angeles to Idaho Falls, returning Wed, 5 Nov, priced at £181 found 6 hours ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
SNA
Orange County
IDA
Idaho Falls
£182 Return, found 5 days ago
£182
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Orange County to Idaho Falls, returning Wed, 24 Sep, priced at £182 found 5 days ago
Alaska Airlines
Tue, 16 Sep - Tue, 23 Sep
SNA
Orange County
IDA
Idaho Falls
£215 Return, found 5 days ago
£215
Return
found 5 days ago
Select Alaska Airlines flight, departing Tue, 16 Sep from Orange County to Idaho Falls, returning Tue, 23 Sep, priced at £215 found 5 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
SNA
Orange County
IDA
Idaho Falls
£242 Return, found 5 days ago
£242
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Orange County to Idaho Falls, returning Wed, 24 Sep, priced at £242 found 5 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
SNA
Orange County
IDA
Idaho Falls
£249 Return, found 5 days ago
£249
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Orange County to Idaho Falls, returning Wed, 24 Sep, priced at £249 found 5 days ago
Alaska Airlines
Wed, 17 Sep - Wed, 24 Sep
SNA
Orange County
IDA
Idaho Falls
£252 Return, found 5 days ago
£252
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 17 Sep from Orange County to Idaho Falls, returning Wed, 24 Sep, priced at £252 found 5 days ago
Virgin Atlantic
Mon, 15 Sep - Tue, 23 Sep
LHR
London
IDA
Idaho Falls
£636 Return, found 11 hours ago
£636
Return
found 11 hours ago
Select Virgin Atlantic flight, departing Mon, 15 Sep from London to Idaho Falls, returning Tue, 23 Sep, priced at £636 found 11 hours ago
Aeromexico
Wed, 3 Sep - Sun, 14 Sep
MEX
Mexico City
IDA
Idaho Falls
£650 Return, found 5 days ago
£650
Return
found 5 days ago
Select Aeromexico flight, departing Wed, 3 Sep from Mexico City to Idaho Falls, returning Sun, 14 Sep, priced at £650 found 5 days ago
KLM
Mon, 27 Oct - Sun, 2 Nov
LHR
London
IDA
Idaho Falls
£663 Return, found 3 days ago
£663
Return
found 3 days ago
Select KLM flight, departing Mon, 27 Oct from London to Idaho Falls, returning Sun, 2 Nov, priced at £663 found 3 days ago
Delta
Mon, 6 Oct - Mon, 13 Oct
LCY
London
IDA
Idaho Falls
£681 Return, found 5 hours ago
£681
Return
found 5 hours ago
Select Delta flight, departing Mon, 6 Oct from London to Idaho Falls, returning Mon, 13 Oct, priced at £681 found 5 hours ago

Top tips for booking flights to Jefferson County from UK

Get ready to fly to Jefferson County

Prepare your luggage and book your flights to Jefferson County with Expedia. We offer a seamless flight booking experience, with a wide range of Jefferson County plane tickets to choose from. If you need help finding some of the best deals for cheap flights to Jefferson County in 2025, we are always available to assist you. Book your flights to Jefferson County today and let the adventure begin!

Find the best tickets to Jefferson County

To find some of the best tickets to Jefferson County in 2025, use Expedia's powerful search engine to compare dates and the different departure and arrival airports for your trip. Whether you're after direct flights to Jefferson County or last-minute flights to Jefferson County, you can filter and sort your search results, making it easy to find the ideal flight to Jefferson County.

Airlines fly to Jefferson County

There are 20 different airlines that fly to Jefferson County including some of the most trusted names in the business. To book flights to Jefferson County with your favourite airline, take a look at Expedia's flight listings and try out different dates to find some of the best Jefferson County plane tickets.

Find the cheapest flights to Jefferson County

By booking early you may find some of the best deals for Jefferson County flights from the UK, including Jefferson County direct flights. You can usually find affordable and cheap flights to Jefferson County, whether one-way from £91 or round-trip from £181, with Expedia if you book your trip far enough in advance.

Find the best airports for cheap flights to Jefferson County

Try searching for different Jefferson County airports with Expedia to find some of the cheapest flights to Jefferson County. Flights from Los Angeles (LAX) to Idaho Falls (IDA) usually have the lowest price from £91.

Why book your flights to Jefferson County with Expedia

Expedia offers great deals on Jefferson County air fares from £91 to cater to every budget. Not only is Expedia one of the top platforms to book flights to Jefferson County from the UK, it is also your one-stop shop for booking hotels, car rentals, and more.

 

*Prices and availability are subject to change. Additional terms apply.

Jefferson County Flights Information

Airlines serving
Alaska Airlines, Delta, American Airlines, Hawaiian Airlines, United, Virgin Atlantic, Aeromexico, KLM
Roundtrip price
from £181

Frequently asked questions

How do I find cheap flights to Jefferson County that have flexible change policies?
When it comes to flying these days, flexibility is a must. That's why we've added a "No change fee" filter to help you track down flexible, low-priced flights to Jefferson County. It's to the left of your screen directly under the "Flexible change policies" subheading.
Which airlines fly to Jefferson County?
Find a seat with one of these airlines and the lively region of Jefferson County will be yours to explore:

  • United Airlines - 91 flights to or near Jefferson County each month, including 91 flights to Idaho Falls Regional Airport (IDA) per month.
  • Delta Air Lines - 86 flights to or near Jefferson County each month, including 86 flights to Idaho Falls Regional Airport (IDA) per month.
  • Allegiant Air - 65 flights to or near Jefferson County each month, including 65 flights to Idaho Falls Regional Airport (IDA) per month.

How can I find cheap tickets to Jefferson County?
In the last seven days, £181 was the lowest price for a flight to Jefferson County. For an even cheaper fare, book ahead of time and be flexible with your travel dates. Search for your trip to Jefferson County, then check out prices for nearby days by clicking on our "flexible dates" link.
How much is a flight to Jefferson County?
One-way flights departing from Los Angeles (LAX) sold for as little as £91 in the last seven days. During this period, the price of a round-trip fare to Jefferson County varied between £181 and £783. If you find a fantastic deal, book as fast as you can — these fares don't stick around for long.
What are the most popular airports to fly into in Jefferson County?
Idaho Falls Regional Airport (IDA) is the primary gateway for people travelling into and out of Jefferson County. Roughly 334 flights per month touch down at this airport.
When is the cheapest time to fly to Jefferson County?
Take off to Jefferson County early on in the week and you'll usually be rewarded with cheaper fares. Tuesday is known for being the cheapest day to hop on a plane, closely followed by Monday. If you're hoping to avoid the costliest flights, stay away from Saturdays.
How much is a plane ticket to Jefferson County?
In the last seven days, plane fares to Jefferson County ranged from £181 to £783.
What is the best time to go to Jefferson County?
Rigby, Jefferson County's leading city, is a great place to tour around at anytime. Don't like the cold? Then journey here from June 20 onward in summer, when temperatures range from 10ºC to 27ºC. June, July and August is when Rigby draws the biggest crowds.
What months are the cheapest to book a flight to Jefferson County?
The ideal month to book a fantastic deal to Jefferson County is February, whereas prices are at a premium in December. Keep clear of this month if you're counting your pennies.

Trending flights to Jefferson 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.

Virgin Atlantic
Mon, 15 Sep - Tue, 23 Sep
LHR
London
IDA
Idaho Falls
£636 Return, found 11 hours ago
£636
Return
found 11 hours ago
Select Virgin Atlantic flight, departing Mon, 15 Sep from London to Idaho Falls, returning Tue, 23 Sep, priced at £636 found 11 hours ago
*Available to Expedia members.