SDF - IDA

$290 Find Cheap Flights from Louisville to Idaho Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Idaho Falls departing on 9/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Idaho Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Idaho Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Louisville to Idaho Falls, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$411
United Airlines
Sat 9/5Sun 9/6
SDF - IDA • 1 stop
Cheapest one-way
$290
Multiple Airlines
Sat 9/5
SDF - IDA • 3 stops
Top airlines
United Airlines
Cheapest • from $411 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Louisville and Idaho Falls. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Chicago (ORD)
Cheapest • Avg $499 (round-trip)
Dallas (DFW)
Shortest trip • 7h 10m (one-way)
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Idaho Falls!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Louisville to Idaho Falls (SDF-IDA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Idaho Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to Idaho Falls

Sat, Sep 5 - Sun, Sep 6
United Airlines Logo
8:00 am - 1:29 pm
SDF
-
IDA
7h 29m
1 stop
United Airlines Logo
2:25 pm - 10:31 pm
IDA
-
SDF
6h 06m
1 stop
$411United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
3:20 pm - 9:08 pm
SDF
-
IDA
7h 48m
1 stop
United Airlines Logo
2:35 pm - 9:57 pm
IDA
-
SDF
5h 22m
1 stop
$419United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
8:45 am - 9:08 pm
SDF
-
IDA
14h 23m
2 stops
United Airlines Logo
5:00 am - 2:27 pm
IDA
-
SDF
7h 27m
1 stop
$424United Airlines
Tue, Oct 27 - Sat, Oct 31
United Airlines Logo
8:45 am - 9:08 pm
SDF
-
IDA
14h 23m
2 stops
United Airlines Logo
5:00 am - 4:49 pm
IDA
-
SDF
9h 49m
2 stops
$429United Airlines
Sat, Oct 24 - Wed, Oct 28
United Airlines Logo
7:55 am - 1:24 pm
SDF
-
IDA
7h 29m
1 stop
United Airlines Logo
2:35 pm - 9:57 pm
IDA
-
SDF
5h 22m
1 stop
$478United Airlines
Sat, Oct 24 - Wed, Oct 28
United Airlines Logo
7:00 am - 5:16 pm
SDF
-
IDA
12h 16m
2 stops
United Airlines Logo
7:00 am - 7:34 pm
IDA
-
SDF
10h 34m
2 stops
$488United Airlines
Sat, Sep 5 - Sun, Sep 6
United Airlines Logo
7:10 am - 3:23 pm
SDF
-
IDA
10h 13m
2 stops
United Airlines Logo
2:25 pm - 10:31 pm
IDA
-
SDF
6h 06m
1 stop
$542United Airlines
Mon, Oct 19 - Mon, Oct 26
American Airlines Logo
7:14 pm - 12:20 pm
SDF
-
IDA
19h 06m
1 stop
American Airlines Logo
2:20 pm - 9:05 am
IDA
-
SDF
16h 45m
2 stops
$622American Airlines
Wed, Jul 8 - Tue, Jul 14
American Airlines Logo
6:38 am - 12:23 pm
SDF
-
IDA
7h 45m
1 stop
American Airlines Logo
1:53 pm - 11:46 pm
IDA
-
SDF
7h 53m
1 stop
$654American Airlines
Mon, Oct 19 - Mon, Oct 26
Alaska Airlines Logo
1:18 pm - 10:54 pm
SDF
-
IDA
11h 36m
2 stops
Alaska Airlines Logo
6:09 am - 10:55 pm
IDA
-
SDF
14h 46m
2 stops
$723Alaska Airlines
Booking Insights

KAYAK's insights & trends for Louisville to Idaho Falls flights

Get data-powered insights and trends into flights from Louisville to Idaho Falls to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Louisville to Idaho Falls?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Louisville to Idaho Falls were found on United Airlines ($411) and American Airlines ($622).

Find deals

Good to know

Cheapest flight$290
Flight from Louisville to Idaho Falls

When to book flights from Louisville to Idaho Falls

Are your dates flexible? Find out the best times to travel from Louisville to Idaho Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Louisville to Idaho Falls

  • What is the cheapest flight from Louisville to Idaho Falls?

    In the last 5 days, the lowest price for a flight from Louisville to Idaho Falls was $290 for a one-way ticket and $411 for a round-trip.

  • Do I need a passport to fly between Louisville and Idaho Falls?

    A passport is not required to fly from Louisville to Idaho Falls.

  • Which airports will I be using when flying from Louisville to Idaho Falls?

    On your way to Idaho Falls, you’ll fly out from Louisville Intl. You’ll be landing at Idaho Falls Fanning Field.

  • Which aircraft models fly most regularly from Louisville to Idaho Falls?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Louisville to Idaho Falls?

    Star Alliance is the only airline alliance operating flights between Louisville and Idaho Falls.

  • How does KAYAK find such low prices on flights from Louisville to Idaho Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Louisville to Idaho Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Louisville to Idaho Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho Falls from Louisville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Louisville to Idaho Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Idaho Falls with an airline and back to Louisville with another airline. Booking your flights between Louisville and IDA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Louisville to Idaho Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Idaho Falls from Louisville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Louisville to Idaho Falls

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Idaho Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Louisville to Idaho Falls? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9842 reviews
6.6Food
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
Airline reviews

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

2.0 MediocreAnonymous, Jun 2026
ORD - BHM
Read more United Airlines reviews

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Everything you need to know for your flight from Louisville to Idaho Falls

Information on your arrival and departure airports

Louisville (SDF)
Idaho Falls (IDA)