IDA - SDF

$408 Find Cheap Flights from Idaho Falls to Louisville - Compare and Save

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to Louisville departing on 10/10. 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

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$408
United Airlines
Sat 10/10Tue 10/13
IDA - SDF • 1 stop
Top airlines
Cheapest • from $408 (round-trip)
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 Idaho Falls and Louisville. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $476 (round-trip)
Shortest trip • 5h 42m (one-way)
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Louisville!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to Louisville 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 Idaho Falls to Louisville

Sat, Oct 10 - Tue, Oct 13
United Airlines Logo
2:28 pm - 10:32 pm
IDA
-
SDF
6h 04m
1 stop
United Airlines Logo
3:36 pm - 8:54 pm
SDF
-
IDA
7h 18m
1 stop
$408United Airlines
Wed, Aug 26 - Wed, Sep 2
American Airlines Logo
1:43 pm - 9:25 pm
IDA
-
SDF
5h 42m
1 stop
American Airlines Logo
7:03 am - 11:30 am
SDF
-
IDA
6h 27m
1 stop
$428American Airlines
Wed, Aug 26 - Wed, Sep 2
American Airlines Logo
1:43 pm - 9:25 pm
IDA
-
SDF
5h 42m
1 stop
American Airlines Logo
6:28 am - 1:09 pm
SDF
-
IDA
8h 41m
1 stop
$428American Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
2:25 pm - 10:31 pm
IDA
-
SDF
6h 06m
1 stop
United Airlines Logo
8:00 am - 1:29 pm
SDF
-
IDA
7h 29m
1 stop
$429United Airlines
Sat, Nov 14 - Tue, Nov 17
United Airlines Logo
2:35 pm - 10:24 pm
IDA
-
SDF
5h 49m
1 stop
United Airlines Logo
8:00 am - 1:28 pm
SDF
-
IDA
7h 28m
1 stop
$429United Airlines
Sat, Oct 10 - Tue, Oct 13
United Airlines Logo
2:28 pm - 10:32 pm
IDA
-
SDF
6h 04m
1 stop
United Airlines Logo
8:00 am - 1:24 pm
SDF
-
IDA
7h 24m
1 stop
$434United Airlines
Wed, Aug 26 - Wed, Sep 2
United Airlines Logo
10:35 am - 11:59 pm
IDA
-
SDF
11h 24m
2 stops
United Airlines Logo
3:25 pm - 9:18 pm
SDF
-
IDA
7h 53m
1 stop
$434United Airlines
Sat, Nov 14 - Tue, Nov 17
United Airlines Logo
2:35 pm - 10:24 pm
IDA
-
SDF
5h 49m
1 stop
United Airlines Logo
7:00 am - 1:28 pm
SDF
-
IDA
8h 28m
2 stops
$434United Airlines
Sat, Oct 10 - Tue, Oct 13
Alaska Airlines Logo
6:09 am - 9:25 pm
IDA
-
SDF
13h 16m
2 stops
Alaska Airlines Logo
10:54 am - 10:59 pm
SDF
-
IDA
14h 05m
2 stops
$663Alaska Airlines
Thu, Aug 13 - Sun, Aug 16
Alaska Airlines Logo
7:15 am - 9:25 pm
IDA
-
SDF
12h 10m
2 stops
Alaska Airlines Logo
11:09 am - 10:39 pm
SDF
-
IDA
13h 30m
2 stops
$2,265Alaska Airlines
Booking Insights

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

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

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

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 Idaho Falls to Louisville were found on United Airlines ($408) and American Airlines ($428).

Good to know

Cheapest flight

$408
Flight from Idaho Falls to Louisville

When to book flights from Idaho Falls to Louisville

Are your dates flexible? Find out the best times to travel from Idaho Falls to Louisville 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 Idaho Falls to Louisville

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

    In the last 5 days, the lowest price for a flight from Idaho Falls to Louisville was $408 for a round-trip ticket.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

    When flying out of Idaho Falls you will be using Idaho Falls Fanning Field. You will be landing at Louisville, also known as Louisville Intl.

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

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

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

    oneworld, and Star Alliance are the airline alliances operating flights between Idaho Falls and Louisville, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Idaho Falls to Louisville, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Idaho Falls to Louisville are United Airlines and American Airlines. With an average price for the route of $504 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $523 and an overall rating of 7.1.

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

    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 Idaho Falls to Louisville.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from Idaho Falls 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 Idaho Falls to Louisville?

    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 Louisville with an airline and back to Idaho Falls with another airline. Booking your flights between Idaho Falls and SDF 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 Idaho Falls to Louisville?

    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 Louisville from Idaho Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Idaho Falls to Louisville

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to Louisville. 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 Idaho Falls to Louisville? 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 10058 reviews
8.1Crew
7.7Boarding
7.1Entertainment
6.7Food
7.3Comfort
Airline reviews

Flight staff and all was fine. Food always sucks on planes so nothing new.

10.0 ExcellentJames, Aug 2026
RNO - IAH
Read more United Airlines reviews

Flight staff and all was fine. Food always sucks on planes so nothing new.

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

I’m an EP on AA every year for more than a decade but this was a very pleasant and surprising experience. Clean and sizable plane for HOU to CHI. 5 row first class. And excellent food in first class the steak option was really good. Your flight attendants even better. Seat 5A

It was hot and not as comfortable as the flight to Chicago. Must have been a different plane that needs to be worked on or replaced.

My flight was delayed so bad i missed u it so i just said never mind

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

United Airlines was fantastic, however, UnderPricer was a nightmare. I got to the airport 4 hours before my flight. We are moving to New Zealand so had quite a bit of baggage (16 checked items) and so wanted to have plenty of time to get everything taken care of properly. When I went to check in they (United) could only find a ticket for me. The 5 tickets for my children were never officially ticketed. I called Underpricer and they told me it was United's fault and United told me that Underpricer just needs to reissue the tickets, but they refused to. I asked the Underpricer agent to transfer me to his supervisor as I was not getting the help I needed. He told me the supervisor was busy but that he would call me back in 30 minutes. 30 minutes came and went with no phone call. After an hour I called Underpricer back but they would not let me talk to the person I had talked to before, just told me that he was talking with the supervisor and technical support. I called again an hour later, was told the same thing. I tried again later, with only about 30 minutes until my flight was scheduled to leave (meaning I had been at the airport for more than 3 hours with my 5 children trying to get ticketed and board the flight). Also, my husband had moved to New Zealand 3 months prior, I haven't seen him in 3 months, my children hadn't seen their dad in 3 months, we were all extremely eager to get on that flight and get to New Zealand. The situation with the tickets did not get resolved until after it was too late to check our luggage and board our flight. We were devastated. My 11 year old son was in tears at not being able to be on his way to see his dad. Thankfully we were rebooked for the next evening, but that night it felt devastating. We'd been at the airport for 4 hours waiting. My in-laws waited with me and then helped me reload all our baggage and took us home to stay with them for the night. On the newly booked flights we could not sit together - my children were spread throughout the plane. So, even though I had paid extra to select our seats after buying my seats from Underpricer only two of us were able to sit together (thankful that my 11 year old wasn't all by himself, but not happy that my 14 & 16 year old daughters were seated by strangers). I really feel that Underpricer should refund me what I paid for the seating ($120 USD). It was a very frustrating situation and I plan on never using Kayak or Underpricer ever again.

The gate got changed several times and the flight was delayed over an hour. Awful experience

It was an older plane. First Class was not especially roomy or comfortable. It was a short flight so there were no meal but they did offer mixed nuts which used to be normal but now is rare. Crew member was very polite and professional.

No Snacks or Entertainment. The flight was short, snacks should still be given.

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

My Internet did not work for Outlook email or basically anything. I paid for one hour of in-flight usage and it was terrible. I spent a lot of time on different sites and browsers with no luck and a lot of frustration. Other than that, the flight was on time, crew was nice, service was fine. Seat was OK even though I paid for the extra 6 inches. I cannot imagine how tight the seats in the back must be.

Everything was fine. Flight boarded and departed on time. Seating was spacious enough for my carryon to fit under the seat in front of me. No complaints at all. Flight even arrived early.

Flight was delayed due to a steering issue with plane. The delay caused me to miss the connecting flight. The delay caused me to spend an extra 21 hours in airports and flights to get to my destination. The plane issue obviously should have been found and fixed before we even boarded. Ridiculous.

Boston ticket agent Cheryl Porter is WONDERFUL. Our Iberia flight to Barcelona was cancelled the morning we were scheduled to leave and Cheryl was our super hero - she found us seats on a flight to London and on to Barcelona. Truly a “can-do” attitude which we appreciated so much after the Iberia ticket agents told us there was “absolutely nothing they could do”. (As did the customer service agents at Iberia’s call center) Ms Porter is truly a wonderful person who genuinely cares about travelers!

I was not given the option to get on a different flight even though I was going to miss my connection due to weather delays (I did). When I called early in the morning, they said it wasn't delayed long enough; though I knew it would be by the time it was time for the flight ... it was and by that time it was too late. I wasn't given the option to pre-board with my toddler, and the food service was less than normal due to delays .... at least that's what the crew said.

Nothing wrong on this flight but nothing special. It was oversold and they had to bump people which is always bad.

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

Information on your arrival and departure airports