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$206+ Cheap flights from Idaho Falls to Lexington (IDA - LEX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — LEX
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Idaho Falls to Lexington

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Lexington (LEX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$896
(United Airlines)

One-way from

$206
(American Airlines)
From Idaho Falls Fanning Field to Lexington Blue Grass
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One-way flight from Idaho Falls Fanning Field to Lexington Blue Grass
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Find flight deals from Idaho Falls to Lexington

Cheapest flights from Idaho Falls to Lexington
Explore the most affordable flight options available from Idaho Falls to Lexington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/116:03 pmIDA - LEX
1 stop26h 08mUnited Airlines
Fri 8/155:44 pmLEX - IDA
2 stops18h 00mUnited Airlines
Deal found 7/27$896
This Alaska Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/116:15 amIDA - LEX
2 stops15h 08mAlaska Airlines
Fri 8/1511:44 amLEX - IDA
2 stops12h 55mAlaska Airlines
Deal found 7/27$2,113

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Lexington 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, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Idaho Falls to Lexington that are best for you.

Fly from

Idaho Falls

Fly to

Lexington

Route

Depart

Return

Price

Idaho FallsLexington

IDA - LEX

IDALEX

Idaho Falls Fanning Field

Mon 8/11

6:03 pm-10:11 pm

1 stop26h 08m

Lexington Blue Grass

Fri 8/15

5:44 pm-9:44 am

2 stops18h 00m

$896

Idaho FallsLexington

IDA - LEX

IDALEX

Idaho Falls Fanning Field

Mon 8/11

6:15 am-11:23 pm

2 stops15h 08m

Lexington Blue Grass

Fri 8/15

11:44 am-10:39 pm

2 stops12h 55m

$2,113

Idaho FallsLexington

IDA - LEX

IDALEX

Idaho Falls Fanning Field

Tue 8/19

12:46 pm-11:23 pm

1 stop8h 37m

$206

Idaho FallsLexington

IDA - LEX

IDALEX

Idaho Falls Fanning Field

Tue 8/19

5:00 am-5:07 pm

2 stops10h 07m

$261

Idaho FallsLexington

IDA - LEX

IDALEX

Idaho Falls Fanning Field

Wed 8/20

6:52 pm-9:25 am

2 stops12h 33m

$325

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Idaho Falls to Lexington

Have a flexible travel schedule? Discover the best time to fly to Lexington from Idaho Falls with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Lexington

Get insights into the airlines that provide service to Lexington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lexington. Reviews last updated July 29, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Idaho Falls to Lexington. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Lexington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Idaho Falls to Lexington round-trip?

    Our cheapest airline available from Idaho Falls to Lexington is United Airlines. Our recent data shows that you can find tickets from as low as $896 on this airline. An additional option worth looking into is Alaska Airlines, starting at $2,113.

  • What are the cheapest airlines to fly from Idaho Falls to Lexington one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $206. United Airlines flights start at $261 while deals on Delta start at $325 one-way.

  • Can I find deals for flights from Idaho Falls to Lexington that include hotel bookings?

    Yes. In addition to deals on Idaho Falls to Lexington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho Falls to Lexington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho Falls to Lexington.

  • Can I find deals for business class flights from Idaho Falls to Lexington?

    Yes. Cheapflights offers flight deals from Idaho Falls to Lexington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho Falls to Lexington?

    Currently, August is the cheapest month in which you can book a flight from Idaho Falls to Lexington (average of $303). Flying from Idaho Falls to Lexington in April is currently the most expensive (average of $390). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Lexington?

Book flights to Lexington if you plan to visit one of these locations
Georgetown
Danville
Berea

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Top airline flying from Idaho Falls to Lexington

Discover the top airline that operate flights from Idaho Falls to Lexington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$376Average$772FlexibilityNo cancel feeOn-time69%

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