Cheap Flights to Jefferson County from $94

View $94 flight on Tue, Apr 14, 2026Opens in a new window

Popular airlines to Jefferson County

  • Alaska Airlines

  • United

  • Delta

  • American Airlines

  • Aeromexico

  • KLM

  • Air France

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How much is the cheapest flight to Jefferson County?

Prices were available within the past 7 days and start at $94 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Apr 1 - Sat, Apr 4
SEA
Seattle
IDA
Idaho Falls
$157 Roundtrip, found 1 hour ago
$157
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Wed, Apr 1 from Seattle to Idaho Falls, returning Sat, Apr 4, priced at $157 found 1 hour ago
Hawaiian Airlines
Wed, Apr 1 - Sun, Apr 5
SEA
Seattle
IDA
Idaho Falls
$167 Roundtrip, found 1 day ago
$167
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Wed, Apr 1 from Seattle to Idaho Falls, returning Sun, Apr 5, priced at $167 found 1 day ago
Alaska Airlines
Thu, Apr 2 - Sun, Apr 5
SEA
Seattle
IDA
Idaho Falls
$177 Roundtrip, found 20 hours ago
$177
Roundtrip
found 20 hours ago
Select Alaska Airlines flight, departing Thu, Apr 2 from Seattle to Idaho Falls, returning Sun, Apr 5, priced at $177 found 20 hours ago
Alaska Airlines
Wed, Apr 1 - Sat, Apr 4
SEA
Seattle
IDA
Idaho Falls
$192 Roundtrip, found 1 hour ago
$192
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Wed, Apr 1 from Seattle to Idaho Falls, returning Sat, Apr 4, priced at $192 found 1 hour ago
Delta
Tue, Apr 14 - Tue, Apr 21
SEA
Seattle
IDA
Idaho Falls
$197 Roundtrip, found 2 days ago
$197
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Apr 14 from Seattle to Idaho Falls, returning Tue, Apr 21, priced at $197 found 2 days ago
Alaska Airlines
Wed, May 13 - Tue, May 19
SEA
Seattle
IDA
Idaho Falls
$197 Roundtrip, found 3 days ago
$197
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, May 13 from Seattle to Idaho Falls, returning Tue, May 19, priced at $197 found 3 days ago
Alaska Airlines
Thu, May 7 - Tue, May 12
SEA
Seattle
IDA
Idaho Falls
$202 Roundtrip, found 5 hours ago
$202
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Thu, May 7 from Seattle to Idaho Falls, returning Tue, May 12, priced at $202 found 5 hours ago
Delta
Tue, Apr 28 - Sat, May 16
PDX
Portland
IDA
Idaho Falls
$203 Roundtrip, found 22 hours ago
$203
Roundtrip
found 22 hours ago
Select Delta flight, departing Tue, Apr 28 from Portland to Idaho Falls, returning Sat, May 16, priced at $203 found 22 hours ago
United
Tue, May 19 - Sat, May 23
DEN
Denver
IDA
Idaho Falls
$209 Roundtrip, just found
$209
Roundtrip
just found
Select United flight, departing Tue, May 19 from Denver to Idaho Falls, returning Sat, May 23, priced at $209 just found
American Airlines
Wed, Apr 22 - Wed, Apr 29
CLD
Carlsbad
IDA
Idaho Falls
$231 Roundtrip, found 14 hours ago
$231
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Wed, Apr 22 from Carlsbad to Idaho Falls, returning Wed, Apr 29, priced at $231 found 14 hours ago

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Airports in Jefferson County

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Idaho Falls Regional IDA. Cheapest option available. Flights from $469
IDA
Idaho Falls Regional
Cheapest
Flights from $469

Trending flights to Jefferson 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
Wed, Apr 1 - Sat, Apr 4
SEA
Seattle
IDA
Idaho Falls
$157 Roundtrip, found 1 hour ago
$157
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Wed, Apr 1 from Seattle to Idaho Falls, returning Sat, Apr 4, priced at $157 found 1 hour 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, $157 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 $94 in the last seven days. During this period, the price of a round-trip fare to Jefferson County varied between $157 and $231. 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 traveling 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 $157 to $231.
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.
How long is a flight to Jefferson County?
It could be an hour or two or longer — it really depends on which part of the States you're setting off from. The average flight times for these leading domestic routes to Jefferson County will give you a good idea of what to expect:

  • Denver, CO (DEN-Denver Intl.) to Idaho Falls Regional Airport (IDA) - 1 hour and 41 minutes
  • Dallas, TX (DFW-Dallas-Fort Worth Intl.) to Idaho Falls Regional Airport (IDA) - 3 hours and 1 minute
  • Salt Lake City, UT (SLC-Salt Lake City Intl.) to Idaho Falls Regional Airport (IDA) - 1 hour and 6 minutes

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 50ºF to 80ºF. June, July and August is when Rigby draws the biggest crowds.

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