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Cheap flights from Lexington to Idaho Falls from $349

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Lexington to Idaho Falls departing on 1/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Lexington to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:00 am - 3:31 pm
LEX
-
IDA
8h 31m1 stop
United Airlines Logo
2:40 pm - 10:30 pm
IDA
-
LEX
5h 50m1 stop
$349United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
8:35 am - 3:31 pm
LEX
-
IDA
8h 56m2 stops
United Airlines Logo
2:40 pm - 10:30 pm
IDA
-
LEX
5h 50m1 stop
$354United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
8:35 am - 3:31 pm
LEX
-
IDA
8h 56m2 stops
United Airlines Logo
4:19 pm - 10:40 pm
IDA
-
LEX
28h 21m2 stops
$458United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
8:35 am - 3:31 pm
LEX
-
IDA
8h 56m2 stops
United Airlines Logo
6:30 am - 5:12 pm
IDA
-
LEX
8h 42m2 stops
$490United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
8:15 am - 10:59 pm
LEX
-
IDA
16h 44m1 stop
United Airlines Logo
4:05 pm - 10:13 pm
IDA
-
LEX
28h 08m1 stop
$1,191United Airlines
Thu, Dec 18 - Mon, Dec 22
United Airlines Logo
8:15 am - 10:59 pm
LEX
-
IDA
16h 44m1 stop
United Airlines Logo
5:00 am - 9:04 pm
IDA
-
LEX
14h 04m2 stops
$1,284United Airlines
Thu, Dec 18 - Mon, Dec 22

United Airlines flights from Lexington to Idaho Falls

Our best United Airlines deals on Lexington to Idaho Falls flight tickets
United Airlines
Jan 24
LEX9:00 amLexington Blue Grass
6h 30m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
Jan 28
IDA2:40 pmIdaho Falls Fanning Field
5h 50m
1 stop
LEX10:30 pmLexington Blue Grass
$349
Find similar
United Airlines
Jan 24
LEX8:35 amLexington Blue Grass
8h 56m
2 stops
IDA3:31 pmIdaho Falls Fanning Field
Jan 28
IDA2:40 pmIdaho Falls Fanning Field
5h 50m
1 stop
LEX10:30 pmLexington Blue Grass
$354
Find similar
United Airlines
Jan 24
LEX8:35 amLexington Blue Grass
8h 56m
2 stops
IDA3:31 pmIdaho Falls Fanning Field
Jan 28
IDA2:40 pmIdaho Falls Fanning Field
30h 00m
2 stops
LEX10:40 pmLexington Blue Grass
$458
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Lexington to Idaho Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 4, 2025.
Use the filters below to find and compare flights from Lexington to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LexingtonIdaho Falls

LEX - IDA

LEXIDA

Lexington Blue Grass

Sat 1/24

9:00 am-3:31 pm

1 stop8h 31m

Idaho Falls Fanning Field

Wed 1/28

2:40 pm-10:30 pm

1 stop5h 50m

$349

LexingtonIdaho Falls

LEX - IDA

LEXIDA

Lexington Blue Grass

Sat 1/24

8:35 am-3:31 pm

2 stops8h 56m

Idaho Falls Fanning Field

Wed 1/28

2:40 pm-10:30 pm

1 stop5h 50m

$354

LexingtonIdaho Falls

LEX - IDA

LEXIDA

Lexington Blue Grass

Sat 1/24

8:35 am-3:31 pm

2 stops8h 56m

Idaho Falls Fanning Field

Wed 1/28

4:19 pm-10:40 pm

2 stops28h 21m

$458

LexingtonIdaho Falls

LEX - IDA

LEXIDA

Lexington Blue Grass

Sat 1/24

8:35 am-3:31 pm

2 stops8h 56m

Idaho Falls Fanning Field

Wed 1/28

6:30 am-5:12 pm

2 stops8h 42m

$490

LexingtonIdaho Falls

LEX - IDA

LEXIDA

Lexington Blue Grass

Thu 12/18

8:15 am-10:59 pm

1 stop16h 44m

Idaho Falls Fanning Field

Mon 12/22

4:05 pm-10:13 pm

1 stop28h 08m

$1,191

LexingtonIdaho Falls

LEX - IDA

LEXIDA

Lexington Blue Grass

Thu 12/18

8:15 am-10:59 pm

1 stop16h 44m

Idaho Falls Fanning Field

Mon 12/22

5:00 am-9:04 pm

2 stops14h 04m

$1,284

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Idaho Falls from

How to get the cheapest flight ticket from Lexington to Idaho Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Idaho Falls?

Our data shows that Saturday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $405. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Friday is $626.

What is the cheapest time of day to depart on your flight to Idaho Falls?

Our most recent data shows that the best time of day to fly to Idaho Falls is at noon. Flights from Lexington to Idaho Falls during this time can be as low as $452. Try not to purchase tickets in the morning because they tend to be around $626. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Lexington to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Lexington to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Lexington to Idaho Falls (LEX to IDA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lexington to Idaho Falls

Fastest flight time

8h 31m

Direct flights

None
The fastest flight from Lexington to Idaho Falls takes 8h 31m
There are no direct flights from Lexington to Idaho Falls. There are no popular flight routes from Lexington to Idaho Falls.
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  • How far is Lexington Blue Grass to Idaho Falls Fanning Field by plane?

    Idaho Falls Fanning Field is 1480.6 mi away from Lexington Blue Grass. Flights usually cover this in 6h 30m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lexington Blue Grass Airport to Idaho Falls Fanning Field Airport?

    Prices for flights from Lexington Blue Grass Airport to Idaho Falls Fanning Field Airport refresh daily.

  • How old do you have to be to fly from Lexington Blue Grass Airport to Idaho Falls Fanning Field Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lexington Blue Grass Airport to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The required travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

Why should I use momondo to find a flight deal from Lexington to Idaho Falls?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Lexington to Idaho Falls. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Lexington to Idaho Falls with flexible booking policies on momondo?

momondo does allow users to show only those flights to Idaho Falls from Lexington which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Lexington to Idaho Falls?

momondo provides multiple filters to help you find the best flight to Idaho Falls from Lexington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Lexington to Idaho Falls right now. Can momondo alert me if prices change?

Price alerts on flights to Idaho Falls from Lexington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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