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Find cheap flights from Kentucky to Idaho Falls from $537

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to Idaho Falls departing on 10/29. 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
Fri 6/7
Fri 6/14

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In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

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Good to know

Low season

March

High season

July

Cheapest flight

$537
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Lexington to Idaho Falls

FAQs for booking flights from Kentucky to Idaho Falls

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

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

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

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

Find which airlines fly direct from Kentucky to Fanning Field, which days they fly and book direct flights.

Nonstop departures

Kentucky to Idaho Falls Fanning Field

Monday

Aeromexico, Air France, Alaska Airlines, +6 more

Aeromexico, Air France, +7 more

Tuesday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

Wednesday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

Thursday

Aeromexico, Air France, Alaska Airlines, +8 more

Aeromexico, Air France, +9 more

Friday

Aeromexico, Air France, Alaska Airlines, +6 more

Aeromexico, Air France, +7 more

Saturday

Aeromexico, Air France, Alaska Airlines, +8 more

Aeromexico, Air France, +9 more

Sunday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

See more direct flights

Nonstop returns

Idaho Falls Fanning Field to Kentucky

Monday

Aeromexico, Air France, Alaska Airlines, +6 more

Aeromexico, Air France, +7 more

Tuesday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

Wednesday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

Thursday

Aeromexico, Air France, Alaska Airlines, +8 more

Aeromexico, Air France, +9 more

Friday

Aeromexico, Air France, Alaska Airlines, +6 more

Aeromexico, Air France, +7 more

Saturday

Aeromexico, Air France, Alaska Airlines, +8 more

Aeromexico, Air France, +9 more

Sunday

Aeromexico, Air France, Alaska Airlines, +7 more

Aeromexico, Air France, +8 more

See more direct flights
See more direct flights

Book cheap flights from Kentucky to Idaho Falls

Recent round-trip flight deals

10/29Tue
1 stopUnited Airlines
13h 53mLEX-IDA
11/2Sat
1 stopUnited Airlines
5h 41mIDA-LEX
$537
10/29Tue
1 stopUnited Airlines
13h 53mLEX-IDA
11/2Sat
2 stopsUnited Airlines
21h 38mIDA-LEX
$576
10/29Tue
2 stopsDelta
10h 31mLEX-IDA
11/2Sat
2 stopsDelta
8h 46mIDA-LEX
$611

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Last minute flights from Kentucky to Idaho Falls

Last minute flight, train and bus deals

5/11Sat
multi-stopUnited Airlines
7h 37mSDF-IDA
5/14Tue
multi-stopUnited Airlines
6h 47mIDA-SDF
$453
5/11Sat
multi-stopUnited Airlines
6h 30mSDF-IDA
5/14Tue
multi-stopUnited Airlines
9h 28mIDA-SDF
$800
5/11Sat
multi-stopDelta
12h 21mSDF-IDA
5/14Tue
multi-stopDelta
12h 42mIDA-SDF
$844
5/11Sat
multi-stopDelta
12h 21mSDF-IDA
5/14Tue
multi-stopDelta
12h 42mIDA-SDF
$998

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Flights to Idaho Falls

Destination:

Idaho Falls (IDA)United States

Return flight deals:

Idaho Falls - Kentucky

Cabin classes: