$391+ Cheap flights from Idaho Falls to Lexington (IDA - LEX)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — LEX
Oct 17 — Oct 241
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Idaho Falls to Lexington with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho Falls to Lexington
Cheapest
Best
Last-minute
One-way
Cheapest flights from Idaho Falls to LexingtonExplore 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 September 17, 2026.
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 September 17, 2026.
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:50 pm -
1 stop18h 54m
Sun 10/255:29 am -
1 stop9h 51m
Deal found 9/14![American Airlines logo]()
$744
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:56 pm -
2 stops13h 13m
Sun 10/253:34 pm -
2 stops8h 36m
Deal found 9/14![Delta logo]()
$893
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/2310:35 am -
2 stops11h 20m
Sun 10/259:00 am -
1 stop8h 38m
Deal found 9/14![United Airlines logo]()
$907
Best flights from Idaho Falls to LexingtonDiscover carefully curated flight deals from Idaho Falls to Lexington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from Idaho Falls to Lexington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 1/610:45 am -
2 stops11h 11m
Sat 1/91:50 pm -
2 stops9h 18m
Deal found 9/15![United Airlines logo]()
$573
Last-minute flights from Idaho Falls to LexingtonDiscover last-minute flight deals from Idaho Falls to Lexington. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho Falls to Lexington. Data last updated September 17, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/231:50 pm -
1 stop18h 54m
Sun 10/255:29 am -
1 stop9h 51m
Deal found 9/14![American Airlines logo]()
$744
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:56 pm -
2 stops13h 13m
Sun 10/253:34 pm -
2 stops8h 36m
Deal found 9/14![Delta logo]()
$893
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/2310:35 am -
2 stops11h 20m
Sun 10/259:00 am -
1 stop8h 38m
Deal found 9/14![United Airlines logo]()
$907
One-way flights from Idaho Falls to LexingtonSearch for one-way flight options from Idaho Falls to Lexington. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Idaho Falls to Lexington. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 9/3010:35 am -
2 stops11h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 10/132:28 pm -
1 stop5h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$438
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:15 pm -
1 stop9h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![American Airlines logo]()
$500
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 10/72:28 pm -
1 stop5h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$514
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:00 am -
2 stops11h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Delta logo]()
$1,356
Find 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 September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $573 (United Airlines) |
One-way from | $391 (United Airlines) |
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 7,457,451 searches. Data last updated September 17, 2026.
Use the filters below to find and compare flights from Idaho Falls to Lexington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Idaho FallsLexington
IDA Idaho Falls Fanning Field - LEX Lexington Blue Grass
IDALEX
Idaho Falls Fanning Field
Wed 9/30
10:35 am-11:55 pm
2 stops11h 20m
Lexington Blue Grass
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$391
Quickest round-trip
Idaho FallsLexington
IDA Idaho Falls Fanning Field - LEX Lexington Blue Grass
IDALEX
Idaho Falls Fanning Field
Tue 10/13
2:28 pm-10:09 pm
1 stop5h 41m
Lexington Blue Grass
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$438
Idaho FallsLexington
IDA Idaho Falls Fanning Field - LEX Lexington Blue Grass
IDALEX
Idaho Falls Fanning Field
Wed 9/30
12:15 pm-11:21 pm
1 stop9h 06m
Lexington Blue Grass
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$500
Idaho FallsLexington
IDA Idaho Falls Fanning Field - LEX Lexington Blue Grass
IDALEX
Idaho Falls Fanning Field
Wed 10/7
2:28 pm-10:09 pm
1 stop5h 41m
Lexington Blue Grass
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$514
Idaho FallsLexington
IDA Idaho Falls Fanning Field - LEX Lexington Blue Grass
IDALEX
Idaho Falls Fanning Field
Wed 1/6
10:45 am-11:56 pm
2 stops11h 11m
Lexington Blue Grass
Sat 1/9
1:50 pm-9:08 pm
2 stops9h 18m
$573
Idaho FallsLexington
IDA Idaho Falls Fanning Field - LEX Lexington Blue Grass
IDALEX
Idaho Falls Fanning Field
Wed 10/7
6:00 am-7:13 pm
2 stops11h 13m
Lexington Blue Grass
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$1,356
Sorted by cheapest first
Compare providers for flights from Idaho Falls to Lexington
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Idaho Falls to Lexington in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Idaho Falls-Lexington flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Idaho Falls-Lexington flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Idaho Falls-Lexington flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Idaho Falls-Lexington flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Idaho Falls-Lexington flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
IDA-LEX
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.
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.
Traveling to a place near Lexington?
Book flights to Lexington if you plan to visit one of these locationsSomerset
Richmond
Danville
Berea
Frankfort
Georgetown
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Lexington flight routes
Other flight options
Other flights from Idaho Falls
Popular flights