£58 Cheap Flights to Jefferson County

View £58 flight on Wed, 27 May 2026Opens in a new window

Popular airlines to Jefferson County

  • Alaska Airlines

  • United

  • Delta

  • American Airlines

  • KLM

  • Aeromexico

  • Virgin Atlantic

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Cheap round-trip flights to Jefferson County

Prices were available within the past 7 days and start at £58 for one-way flights and £153 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 20 May - Wed, 27 May
PDX
Portland
IDA
Idaho Falls
£153 Return, found 5 days ago
£153
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 20 May from Portland to Idaho Falls, returning Wed, 27 May, priced at £153 found 5 days ago
Alaska Airlines
Wed, 27 May - Sat, 30 May
PDX
Portland
IDA
Idaho Falls
£197 Return, found 7 hours ago
£197
Return
found 7 hours ago
Select Alaska Airlines flight, departing Wed, 27 May from Portland to Idaho Falls, returning Sat, 30 May, priced at £197 found 7 hours ago
Alaska Airlines
Mon, 18 May - Mon, 25 May
PDX
Portland
IDA
Idaho Falls
£198 Return, found 5 days ago
£198
Return
found 5 days ago
Select Alaska Airlines flight, departing Mon, 18 May from Portland to Idaho Falls, returning Mon, 25 May, priced at £198 found 5 days ago
Alaska Airlines
Wed, 27 May - Sat, 30 May
PDX
Portland
IDA
Idaho Falls
£204 Return, found 7 hours ago
£204
Return
found 7 hours ago
Select Alaska Airlines flight, departing Wed, 27 May from Portland to Idaho Falls, returning Sat, 30 May, priced at £204 found 7 hours ago
Alaska Airlines
Wed, 20 May - Wed, 27 May
PDX
Portland
IDA
Idaho Falls
£206 Return, found 5 days ago
£206
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 20 May from Portland to Idaho Falls, returning Wed, 27 May, priced at £206 found 5 days ago
Alaska Airlines
Wed, 20 May - Wed, 27 May
PDX
Portland
IDA
Idaho Falls
£209 Return, found 5 days ago
£209
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 20 May from Portland to Idaho Falls, returning Wed, 27 May, priced at £209 found 5 days ago
American Airlines
Tue, 15 Sept - Tue, 22 Sept
LHR
London
IDA
Idaho Falls
£790 Return, found 4 hours ago
£790
Return
found 4 hours ago
Select American Airlines flight, departing Tue, 15 Sept from London to Idaho Falls, returning Tue, 22 Sept, priced at £790 found 4 hours ago
KLM
Tue, 15 Sept - Tue, 22 Sept
LHR
London
IDA
Idaho Falls
£794 Return, found 4 hours ago
£794
Return
found 4 hours ago
Select KLM flight, departing Tue, 15 Sept from London to Idaho Falls, returning Tue, 22 Sept, priced at £794 found 4 hours ago
Virgin Atlantic
Tue, 15 Sept - Tue, 22 Sept
LHR
London
IDA
Idaho Falls
£794 Return, found 4 hours ago
£794
Return
found 4 hours ago
Select Virgin Atlantic flight, departing Tue, 15 Sept from London to Idaho Falls, returning Tue, 22 Sept, priced at £794 found 4 hours ago
Delta
Mon, 5 Oct - Thu, 22 Oct
LHR
London
IDA
Idaho Falls
£806 Return, found 21 hours ago
£806
Return
found 21 hours ago
Select Delta flight, departing Mon, 5 Oct from London to Idaho Falls, returning Thu, 22 Oct, priced at £806 found 21 hours ago

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.

American Airlines
Tue, 15 Sept - Tue, 22 Sept
LHR
London
IDA
Idaho Falls
£790 Return, found 4 hours ago
£790
Return
found 4 hours ago
Select American Airlines flight, departing Tue, 15 Sept from London to Idaho Falls, returning Tue, 22 Sept, priced at £790 found 4 hours ago

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, £153 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 Portland (PDX) sold for as little as £58 in the last seven days. During this period, the price of a round-trip fare to Jefferson County varied between £153 and £806. 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 £153 to £806.
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.

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Top tips for booking flights to Jefferson County from UK

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To find some of the best tickets to Jefferson County in 2026, 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 £58 or round-trip from £153, 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 Portland (PDX) to Idaho Falls (IDA) usually have the lowest price from £58.

Why book your flights to Jefferson County with Expedia

Expedia offers great deals on Jefferson County air fares from £58 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.

Top tips for booking flights to Jefferson County from UK

Travel information

Jefferson County Flights Information

Airlines serving
Alaska Airlines, American Airlines, Delta, KLM, Virgin Atlantic
Roundtrip price
from £153
Jefferson County Flights Information

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