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Find cheap flights from Idaho to Louisville from $101

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Louisville departing on 5/19. 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
0 bags
Tue 6/4
Tue 6/11

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In the last 7 days travelers have searched 42,830,901 times on KAYAK, and here is why:

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Good to know

Low season

January

High season

May

Cheapest flight

$101
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Boise to Louisville

FAQs for booking flights from Idaho to Louisville

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from Idaho 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 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from Idaho to Louisville?

Find which airlines fly direct from Idaho to Louisville Intl, which days they fly and book direct flights.

Nonstop departures

Idaho to Louisville Intl

Monday

ANA, Aer Lingus, Aeromexico, +27 more

ANA, Aer Lingus, +28 more

Tuesday

ANA, Aer Lingus, Aeromexico, +25 more

ANA, Aer Lingus, +26 more

Wednesday

ANA, Aer Lingus, Aeromexico, +24 more

ANA, Aer Lingus, +25 more

Thursday

ANA, Aer Lingus, Aeromexico, +26 more

ANA, Aer Lingus, +27 more

Friday

ANA, Aer Lingus, Aeromexico, +27 more

ANA, Aer Lingus, +28 more

Saturday

ANA, Aer Lingus, Aeromexico, +25 more

ANA, Aer Lingus, +26 more

Sunday

ANA, Aer Lingus, Aeromexico, +26 more

ANA, Aer Lingus, +27 more

See more direct flights

Nonstop returns

Louisville Intl to Idaho

Monday

ANA, Aer Lingus, Aeromexico, +27 more

ANA, Aer Lingus, +28 more

Tuesday

ANA, Aer Lingus, Aeromexico, +25 more

ANA, Aer Lingus, +26 more

Wednesday

ANA, Aer Lingus, Aeromexico, +24 more

ANA, Aer Lingus, +25 more

Thursday

ANA, Aer Lingus, Aeromexico, +26 more

ANA, Aer Lingus, +27 more

Friday

ANA, Aer Lingus, Aeromexico, +27 more

ANA, Aer Lingus, +28 more

Saturday

ANA, Aer Lingus, Aeromexico, +25 more

ANA, Aer Lingus, +26 more

Sunday

ANA, Aer Lingus, Aeromexico, +26 more

ANA, Aer Lingus, +27 more

See more direct flights
See more direct flights

Book cheap flights from Idaho to Louisville

Recent round-trip flight deals

5/31Fri
1 stopSpirit Airlines
20h 37mBOI-SDF
6/3Mon
1 stopSpirit Airlines
25h 33mSDF-BOI
$183
5/31Fri
1 stopSpirit Airlines
20h 37mBOI-SDF
6/3Mon
3 stopsSpirit Airlines
35h 56mSDF-BOI
$190
6/20Thu
2 stops
14h 32mBOI-SDF
6/24Mon
1 stop
21h 57mSDF-BOI
$256
6/20Thu
2 stops
14h 32mBOI-SDF
6/24Mon
2 stops
29h 45mSDF-BOI
$292
5/31Fri
1 stopAmerican Airlines
6h 47mBOI-SDF
6/4Tue
1 stopAmerican Airlines
8h 44mSDF-BOI
$408
7/23Tue
2 stopsDelta
11h 47mGEG-SDF
7/24Wed
1 stopDelta
6h 30mSDF-GEG
$413
9/1Sun
1 stopUnited Airlines
6h 27mGEG-SDF
9/19Thu
1 stopUnited Airlines
8h 06mSDF-GEG
$428
7/23Tue
1 stopDelta
5h 55mGEG-SDF
7/24Wed
1 stopDelta
6h 30mSDF-GEG
$432
5/25Sat
1 stopAmerican Airlines
6h 47mBOI-SDF
5/28Tue
1 stopAmerican Airlines
7h 16mSDF-BOI
$448
5/19Sun
1 stopUnited Airlines
6h 35mGEG-SDF
5/26Sun
1 stopUnited Airlines
6h 16mSDF-GEG
$494

Search by stops

Search by airline

Search by price

Recent one-way flight deals

5/19Sun
1 stopSpirit Airlines
25h 32mBOI-SDF
$101
5/30Thu
1 stopSpirit Airlines
24h 32mBOI-SDF
$105
5/30Thu
2 stops
16h 32mBOI-SDF
$109
5/19Sun
2 stops
17h 37mBOI-SDF
$186
5/30Thu
3 stopsSpirit Airlines
24h 24mBOI-SDF
$200
6/17Mon
1 stopAmerican Airlines
9h 15mGEG-SDF
$257
6/17Mon
1 stopAmerican Airlines
9h 14mGEG-SDF
$258
6/17Mon
2 stopsDelta
13h 31mGEG-SDF
$263
5/18Sat
1 stopUnited Airlines
6h 17mGEG-SDF
$648
5/18Sat
2 stopsDelta
13h 31mGEG-SDF
$749

Search by stops

Search by airline

Search by price

Last minute flights from Idaho to Louisville

Last minute flight, train and bus deals

5/10Fri
multi-stopSpirit Airlines
20h 37mBOI-SDF
5/14Tue
multi-stopSpirit Airlines
24h 03mSDF-BOI
$351
5/10Fri
multi-stopSpirit Airlines
20h 37mBOI-SDF
5/14Tue
multi-stopSpirit Airlines
34h 47mSDF-BOI
$361
5/10Fri
multi-stopSpirit Airlines
16h 21mBOI-SDF
5/14Tue
multi-stopSpirit Airlines
38h 13mSDF-BOI
$387
5/10Fri
multi-stopSpirit Airlines
23h 59mBOI-SDF
5/14Tue
multi-stopSpirit Airlines
38h 13mSDF-BOI
$443
5/10Fri
multi-stopDelta
6h 19mBOI-SDF
5/14Tue
multi-stopDelta
8h 45mSDF-BOI
$752

Search by stops

Search by airline

Search by price

Flights to Louisville

Destination:

Louisville (SDF)United States

Return flight deals:

Louisville - Idaho

Cabin classes: