SDF - IDA

$429 Find Cheap Flights from Louisville to Idaho Falls - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$429
Typical prices: $373-$717
United Airlines
Tue 1/30Fri 2/2
SDF - IDA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Louisville and Idaho Falls. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 33% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Denver Intl (DEN)
Cheapest • Avg $510 (round-trip)
Dallas/Fort Worth (DFW)
Shortest trip • 7h 10m (one-way)
Insights
Insights
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Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Louisville to Idaho Falls

Sat, Jan 30 - Tue, Feb 2
United Airlines Logo
3:20 pm - 9:08 pmSDF  Louisville Intl-IDA Idaho Falls Fanning Field
7h 48m1 stop Denver Intl
United Airlines Logo
2:35 pm - 9:57 pmIDA  Idaho Falls Fanning Field-SDF Louisville Intl
5h 22m1 stop Denver Intl
$429United Airlines
Sat, Jan 30 - Tue, Feb 2
United Airlines Logo
9:00 am - 1:35 pmSDF  Louisville Intl-IDA Idaho Falls Fanning Field
6h 35m1 stop Denver Intl
United Airlines Logo
7:00 am - 6:59 pmIDA  Idaho Falls Fanning Field-SDF Louisville Intl
9h 59m2 stops Denver Intl Newark
$434United Airlines
Sat, Jan 30 - Tue, Feb 2
United Airlines Logo
2:08 pm - 9:08 pmSDF  Louisville Intl-IDA Idaho Falls Fanning Field
9h 00m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
7:00 am - 6:59 pmIDA  Idaho Falls Fanning Field-SDF Louisville Intl
9h 59m2 stops Denver Intl Newark
$439United Airlines
Sat, Jan 30 - Tue, Feb 2
United Airlines Logo
6:30 am - 9:08 pmSDF  Louisville Intl-IDA Idaho Falls Fanning Field
16h 38m3 stops Newark Washington, D.C. Dulles Intl Denver Intl
United Airlines Logo
7:00 am - 6:59 pmIDA  Idaho Falls Fanning Field-SDF Louisville Intl
9h 59m2 stops Denver Intl Newark
$445United Airlines
Sat, Jan 30 - Tue, Feb 2
United Airlines Logo
3:20 pm - 9:08 pmSDF  Louisville Intl-IDA Idaho Falls Fanning Field
7h 48m1 stop Denver Intl
United Airlines Logo
2:35 pm - 9:57 pmIDA  Idaho Falls Fanning Field-SDF Louisville Intl
5h 22m1 stop Denver Intl
$449United Airlines
Sat, Jan 30 - Tue, Feb 2
United Airlines Logo
9:00 am - 1:35 pmSDF  Louisville Intl-IDA Idaho Falls Fanning Field
6h 35m1 stop Denver Intl
United Airlines Logo
7:00 am - 6:59 pmIDA  Idaho Falls Fanning Field-SDF Louisville Intl
9h 59m2 stops Denver Intl Newark
$454United Airlines
Sat, Oct 10 - Tue, Oct 13
American Airlines Logo
4:18 pm - 9:42 pmSDF  Louisville Intl-IDA Idaho Falls Fanning Field
7h 24m1 stop Dallas/Fort Worth
American Airlines Logo
6:37 am - 3:27 pmIDA  Idaho Falls Fanning Field-SDF Louisville Intl
6h 50m1 stop Dallas/Fort Worth
$621American Airlines
Sat, Oct 10 - Tue, Oct 13
American Airlines Logo
4:18 pm - 9:42 pmSDF  Louisville Intl-IDA Idaho Falls Fanning Field
7h 24m1 stop Dallas/Fort Worth
American Airlines Logo
1:39 pm - 11:27 pmIDA  Idaho Falls Fanning Field-SDF Louisville Intl
7h 48m1 stop Dallas/Fort Worth
$633American Airlines
Fri, Sep 25 - Sat, Oct 3
American Airlines Logo
6:00 am - 11:45 amSDF  Louisville Intl-IDA Idaho Falls Fanning Field
7h 45m1 stop Dallas/Fort Worth
American Airlines Logo
1:58 pm - 10:33 pmIDA  Idaho Falls Fanning Field-SDF Louisville Intl
6h 35m1 stop Chicago O'Hare Intl
$642American Airlines
Fri, Sep 25 - Thu, Oct 1
American Airlines Logo
6:00 am - 11:45 amSDF  Louisville Intl-IDA Idaho Falls Fanning Field
7h 45m1 stop Dallas/Fort Worth
American Airlines Logo
2:08 pm - 11:25 pmIDA  Idaho Falls Fanning Field-SDF Louisville Intl
7h 17m1 stop Dallas/Fort Worth
$652American Airlines
Booking Insights

Price, demand and travel trends for Louisville to Idaho Falls flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Louisville to Idaho Falls with more confidence.

How much is a round-trip flight from Louisville to Idaho Falls?

Round-trip flights from Louisville to Idaho Falls start at $429. Prices are typical for this route right now, with typical round-trip fares ranging from $373 to $717. The lowest price found in the past 5 days was $429 on United Airlines.

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

Thursday is the cheapest day of the week to fly from Louisville to Idaho Falls, it is 33% cheaper than the average day. Friday is the most expensive day with flight prices 55% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Louisville to Idaho Falls flights

Low season

January
Most popular time to fly with an average 57% increase in price.

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

Your Louisville to Idaho Falls flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Louisville to Idaho Falls?

    Flights from Louisville to Idaho Falls usually depart from Louisville Intl (SDF) and arrive at Idaho Falls Fanning Field (IDA).

  • What cabin classes can I book on flights from Louisville to Idaho Falls?

    Only Economy Class is available on flights from Louisville to Idaho Falls.

  • Which airports do connecting flights from Louisville to Idaho Falls pass through?

    One-stop flights from Louisville to Idaho Falls most commonly connect through:

    • Denver Intl (DEN) - 69% of one-stop connections
    • Dallas/Fort Worth (DFW) - 23% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 8% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Louisville to Idaho Falls?

    Yes. Being flexible with your travel dates can save you up to 57% on the Louisville to Idaho Falls route. Thursday is the cheapest departure day at $343 round-trip on average, while Friday is the most expensive at $791, a difference of $448. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Louisville to Idaho Falls?

    A nonstop flight from Louisville to Idaho Falls takes 0h 00m, covering 1,417 miles.

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

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Louisville to Idaho Falls changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $429 to $1,879. That means the highest observed fare was about 4x higher than the lowest one.

  • How much time can I save by choosing a different layover airport from Louisville to Idaho Falls?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 6h 47m, compared with 7h 10m via Dallas/Fort Worth (DFW) and 7h 13m via Chicago O'Hare Intl (ORD).

  • What is the time difference between Louisville and Idaho Falls?

    Idaho Falls is 2 hours behind Louisville (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Idaho Falls Fanning Field Airport (IDA)?

    Idaho Falls Fanning Field Airport (IDA) hosts 5 major car rental companies, with daily rates starting from around $34 for economy cars. Top options include:
    • Alamo
    • Hertz
    • Enterprise Rent-A-Car
    • Budget
    • National

  • How much should I expect to pay for a Louisville to Idaho Falls flight?

    Round-trip flights from Louisville to Idaho Falls range from $373 to $717, with an average of $510 over the past 12 months. Anything below $373 counts as a good deal.

Your guide to booking Louisville to Idaho Falls flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Thursday departure instead of Friday. On this route, Thursday flights average $343 - about $448 less than Friday (57% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Louisville to Idaho Falls trip for February. Fares historically average $341 round-trip in that month - typically $624 less than the most expensive month, which is October (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Idaho Falls Fanning Field Airport.
    - Tru by Hilton Idaho Falls
    - Quality Inn Idaho Falls
    - Best Western Driftwood Inn

More options for your flight from Louisville to Idaho Falls

Complete your trip to Idaho Falls with a hotel stay or car rental

Car rentals in Idaho Falls
Hotels in Idaho Falls
Vacations in Idaho Falls