Flight to Jefferson County

View S$473 flight on Fri, 29 May, 2026Opens in a new window

Popular airlines to Jefferson County

  • Alaska Airlines

  • United

  • Delta

  • American Airlines

  • Aeromexico

  • KLM

  • Air France

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Cheap round-trip flights to Jefferson County

Prices were available within the past 7 days and start at S$473 for one-way flights and S$790 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 29 May - Fri, 5 Jun
SEA
Seattle
IDA
Idaho Falls
S$790 Return, found 9 hours ago
S$790
Return
found 9 hours ago
Select Delta flight, departing Fri, 29 May from Seattle to Idaho Falls, returning Fri, 5 Jun, priced at S$790 found 9 hours ago
Delta
Fri, 29 May - Fri, 5 Jun
SEA
Seattle
IDA
Idaho Falls
S$892 Return, found 9 hours ago
S$892
Return
found 9 hours ago
Select Delta flight, departing Fri, 29 May from Seattle to Idaho Falls, returning Fri, 5 Jun, priced at S$892 found 9 hours ago
Delta
Fri, 29 May - Fri, 5 Jun
SEA
Seattle
IDA
Idaho Falls
S$893 Return, found 9 hours ago
S$893
Return
found 9 hours ago
Select Delta flight, departing Fri, 29 May from Seattle to Idaho Falls, returning Fri, 5 Jun, priced at S$893 found 9 hours ago
Delta
Fri, 29 May - Fri, 5 Jun
SEA
Seattle
IDA
Idaho Falls
S$918 Return, found 9 hours ago
S$918
Return
found 9 hours ago
Select Delta flight, departing Fri, 29 May from Seattle to Idaho Falls, returning Fri, 5 Jun, priced at S$918 found 9 hours ago
Delta
Fri, 29 May - Fri, 5 Jun
SEA
Seattle
IDA
Idaho Falls
S$919 Return, found 9 hours ago
S$919
Return
found 9 hours ago
Select Delta flight, departing Fri, 29 May from Seattle to Idaho Falls, returning Fri, 5 Jun, priced at S$919 found 9 hours ago
Delta
Fri, 29 May - Fri, 5 Jun
SEA
Seattle
IDA
Idaho Falls
S$945 Return, found 9 hours ago
S$945
Return
found 9 hours ago
Select Delta flight, departing Fri, 29 May from Seattle to Idaho Falls, returning Fri, 5 Jun, priced at S$945 found 9 hours ago
Delta
Fri, 29 May - Fri, 5 Jun
SEA
Seattle
IDA
Idaho Falls
S$950 Return, found 9 hours ago
S$950
Return
found 9 hours ago
Select Delta flight, departing Fri, 29 May from Seattle to Idaho Falls, returning Fri, 5 Jun, priced at S$950 found 9 hours ago
Delta
Fri, 29 May - Fri, 5 Jun
SEA
Seattle
IDA
Idaho Falls
S$956 Return, found 9 hours ago
S$956
Return
found 9 hours ago
Select Delta flight, departing Fri, 29 May from Seattle to Idaho Falls, returning Fri, 5 Jun, priced at S$956 found 9 hours ago
United
Wed, 27 May - Wed, 3 Jun
RDM
Redmond
IDA
Idaho Falls
S$1,032 Return, found 22 hours ago
S$1,032
Return
found 22 hours ago
Select United flight, departing Wed, 27 May from Redmond to Idaho Falls, returning Wed, 3 Jun, priced at S$1,032 found 22 hours ago
American Airlines
Fri, 29 May - Fri, 5 Jun
SEA
Seattle
IDA
Idaho Falls
S$1,032 Return, found 9 hours ago
S$1,032
Return
found 9 hours ago
Select American Airlines flight, departing Fri, 29 May from Seattle to Idaho Falls, returning Fri, 5 Jun, priced at S$1,032 found 9 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, S$790 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 Seattle (SEA) sold for as little as S$473 in the last seven days. During this period, the price of a round-trip fare to Jefferson County varied between S$790 and S$1,432. 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 S$790 to S$1,432.
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.

Book with confidence

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

Travel information

Jefferson County Flights Information

Airlines serving
Delta, United, American Airlines, Azul
Roundtrip price
from S$790
Jefferson County Flights Information
*Available to Expedia members.