HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Lexington

$236+ Cheap flights from Rapid City to Lexington (RAP - 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — LEX
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Rapid City 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 Rapid City to Lexington

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) 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 30, 2025.

Round-trip from

$458
(United Airlines)

One-way from

$236
(American Airlines)
From Rapid City to Lexington Blue Grass
Search Deals
One-way flight from Rapid City to Lexington Blue Grass
Search Deals

Find flight deals from Rapid City to Lexington

Cheapest flights from Rapid City to Lexington
Explore the most affordable flight options available from Rapid City to Lexington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2025.

This American Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 10/164:28 pmRAP - LEX
1 stop5h 29mAmerican Airlines
Tue 10/216:00 amLEX - RAP
2 stops12h 03mAmerican Airlines
Deal found 7/28$440
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Thu 10/161:44 pmRAP - LEX
1 stop8h 15mUnited Airlines
Tue 10/217:05 amLEX - RAP
1 stop5h 08mUnited Airlines
Deal found 7/29$458

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rapid City 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 30, 2025.
Use the filters below to find and compare flights from Rapid City to Lexington that are best for you.

Fly from

Rapid City

Fly to

Lexington

Route

Depart

Return

Price

Rapid CityLexington

RAP - LEX

RAPLEX

Rapid City

Thu 10/16

4:28 pm-11:57 pm

1 stop5h 29m

Lexington Blue Grass

Tue 10/21

6:00 am-4:03 pm

2 stops12h 03m

$440

Rapid CityLexington

RAP - LEX

RAPLEX

Rapid City

Thu 10/16

1:44 pm-11:59 pm

1 stop8h 15m

Lexington Blue Grass

Tue 10/21

7:05 am-10:13 am

1 stop5h 08m

$458

Rapid CityLexington

RAP - LEX

RAPLEX

Rapid City

Thu 8/14

4:41 pm-12:05 am

1 stop5h 24m

$236

Rapid CityLexington

RAP - LEX

RAPLEX

Rapid City

Thu 8/14

9:42 am-8:21 pm

2 stops8h 39m

$266

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Rapid City to Lexington

Have a flexible travel schedule? Discover the best time to fly to Lexington from Rapid City 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.

Cheapflights Insights

Everything you need to know about your flight from Rapid City to Lexington

What is the cheapest month to book a flight from Rapid City to Lexington?

Currently, August is the cheapest month in which you can book a flight from Rapid City to Lexington (average of $303). Flying from Rapid City 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.

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 30, 2025.
Get a feel of what it's like to fly with United Airlines and American Airlines from Rapid City to Lexington by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

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

  • What is the cheapest airline to fly from Rapid City to Lexington round-trip?

    United Airlines, at $458, was found to be the cheapest airline from Rapid City to Lexington..

  • Can I find deals for flights from Rapid City to Lexington that include hotel bookings?

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

  • How can I find direct flights from Rapid City to Lexington?

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

  • Can I find deals for business class flights from Rapid City to Lexington?

    Yes. Cheapflights offers flight deals from Rapid City 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 Rapid City to Lexington?

    Currently, August is the cheapest month in which you can book a flight from Rapid City to Lexington (average of $303). Flying from Rapid City 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

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.

Top airline flying from Rapid City to Lexington

Discover the top airline that operate flights from Rapid City 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$323Average$483FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.