SDF - IDA

$185 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 8/14. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Booking Insights
Flights 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

Thu, Aug 14 - Mon, Aug 18
 Logo
12:47 pm - 11:30 amSDF-IDA
24h 43m2 stops
 Logo
6:20 pm - 5:42 pmIDA-SDF
21h 22m2 stops
Thu, Aug 14 - Mon, Aug 18
 Logo
12:47 pm - 6:41 pmSDF-IDA
31h 54m3 stops
 Logo
6:20 pm - 5:42 pmIDA-SDF
21h 22m2 stops
Thu, Oct 9 - Tue, Oct 14
American Airlines Logo
7:32 am - 12:41 pmSDF-IDA
7h 09m1 stop
American Airlines Logo
12:55 pm - 9:25 amIDA-SDF
18h 30m1 stop
$418American Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
American Airlines Logo
6:44 am - 12:47 pmSDF-IDA
8h 03m1 stop
American Airlines Logo
12:46 pm - 11:02 pmIDA-SDF
8h 16m1 stop
$439American Airlines
Find Deal
Thu, Aug 14 - Mon, Aug 18
 Logo
12:47 pm - 6:41 pmSDF-IDA
31h 54m3 stops
 Logo
6:20 pm - 5:42 pmIDA-SDF
21h 22m3 stops
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
6:00 am - 5:22 pmSDF-IDA
13h 22m2 stops
United Airlines Logo
5:00 am - 2:34 pmIDA-SDF
7h 34m1 stop
$535United Airlines
Find Deal
Mon, Oct 20 - Thu, Oct 23
Alaska Airlines Logo
12:32 pm - 10:38 pmSDF-IDA
12h 06m2 stops
Alaska Airlines Logo
6:00 am - 10:23 pmIDA-SDF
14h 23m2 stops
$577Alaska Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
12:30 pm - 10:51 pmSDF-IDA
12h 21m2 stops
United Airlines Logo
5:00 am - 6:58 pmIDA-SDF
11h 58m2 stops
$586United Airlines
Find Deal
Thu, Aug 14 - Tue, Aug 19
Delta Logo
12:50 pm - 10:27 pmSDF-IDA
11h 37m2 stops
Delta Logo
11:20 am - 9:14 pmIDA-SDF
7h 54m2 stops
$709Delta
Find Deal
Thu, Aug 14 - Tue, Aug 19
Delta Logo
12:50 pm - 10:27 pmSDF-IDA
11h 37m2 stops
Delta Logo
6:52 pm - 8:46 amIDA-SDF
11h 54m2 stops
$719Delta
Find Deal
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.

What’s the cheapest day of the week to fly from Louisville to Idaho Falls?

The average price of all round-trip flights from Louisville to Idaho Falls clicked on KAYAK for each day over the last 12 months.

For Louisville to Idaho Falls, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Idaho Falls back to Louisville, the best deals are generally found on Tuesday, with Friday being the most expensive.

Good to know

Cheapest flight$185
Most popular time to fly with an average 25% increase in price.
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 3 days, the lowest price for a flight from Louisville to Idaho Falls was $185 for a one-way ticket and $309 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?

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

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

    The two airlines most popular with KAYAK users for flights from Louisville to Idaho Falls are United Airlines and American Airlines. With an average price for the route of $571 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 $632 and an overall rating of 7.2.

  • 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 airlines 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 8904 reviews
8.1Crew
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
Airline reviews

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

2.0 MediocreV, Jul 2025MIA - EWR
Read more United Airlines reviews

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We had to turn around and head back to Manchester. Problem with a plane engine.

Flight was delayed. Staff at the gate effectively and proactively communicated about the delay.

Very poor delay in dfw was really bad n long

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

Couldn’t get the door on the plane to close leading to a nearly 2 hour delay. But, hey at least they didn’t cancel the flight.

Flight was cancelled 3 hrs AFTER etd. Thetefore Missed connection from JFK to New Zealand . No accommodation provided… This cost ne aporox 1000 USD in extra expenses and turned whst should have been a 24 hr trip ftom Boston - New Zealand into a VERY expensive , late 70+ hr nightmare … Complete nonsense!!!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.