$1,669 Cheap Flights from Louisville (SDF) to Monrovia (ROB)

View $1,669 flight on Tue, Dec 23, 2025Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Monrovia (ROB-Roberts Intl.)

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Cheap Flights from Louisville to Monrovia (SDF-ROB)

Prices were available within the past 7 days and start at $1,669 for one-way flights and $1,439 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Nov 11 - Tue, Nov 18
SDF
Louisville
ROB
Monrovia
$1,439 Roundtrip, found 6 days ago
$1,439
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 11 from Louisville to Monrovia, returning Tue, Nov 18, priced at $1,439 found 6 days ago
United
Tue, Nov 11 - Tue, Nov 18
SDF
Louisville
ROB
Monrovia
$1,440 Roundtrip, found 6 days ago
$1,440
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 11 from Louisville to Monrovia, returning Tue, Nov 18, priced at $1,440 found 6 days ago
United
Tue, Nov 11 - Tue, Nov 18
SDF
Louisville
ROB
Monrovia
$1,441 Roundtrip, found 6 days ago
$1,441
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 11 from Louisville to Monrovia, returning Tue, Nov 18, priced at $1,441 found 6 days ago
United
Wed, Nov 12 - Sun, Nov 16
SDF
Louisville
ROB
Monrovia
$1,540 Roundtrip, found 6 days ago
$1,540
Roundtrip
found 6 days ago
Select United flight, departing Wed, Nov 12 from Louisville to Monrovia, returning Sun, Nov 16, priced at $1,540 found 6 days ago
United
Tue, Nov 11 - Tue, Nov 18
SDF
Louisville
ROB
Monrovia
$1,578 Roundtrip, found 6 days ago
$1,578
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 11 from Louisville to Monrovia, returning Tue, Nov 18, priced at $1,578 found 6 days ago
United
Tue, Nov 11 - Thu, Nov 20
SDF
Louisville
ROB
Monrovia
$1,663 Roundtrip, found 6 days ago
$1,663
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 11 from Louisville to Monrovia, returning Thu, Nov 20, priced at $1,663 found 6 days ago
United
Tue, Nov 11 - Tue, Nov 18
SDF
Louisville
ROB
Monrovia
$1,672 Roundtrip, found 6 days ago
$1,672
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 11 from Louisville to Monrovia, returning Tue, Nov 18, priced at $1,672 found 6 days ago
United
Tue, Nov 11 - Tue, Nov 18
SDF
Louisville
ROB
Monrovia
$1,677 Roundtrip, found 6 days ago
$1,677
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 11 from Louisville to Monrovia, returning Tue, Nov 18, priced at $1,677 found 6 days ago
United
Tue, Nov 11 - Tue, Nov 18
SDF
Louisville
ROB
Monrovia
$1,684 Roundtrip, found 6 days ago
$1,684
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 11 from Louisville to Monrovia, returning Tue, Nov 18, priced at $1,684 found 6 days ago
United
Thu, Nov 13 - Thu, Nov 20
SDF
Louisville
ROB
Monrovia
$1,688 Roundtrip, found 6 days ago
$1,688
Roundtrip
found 6 days ago
Select United flight, departing Thu, Nov 13 from Louisville to Monrovia, returning Thu, Nov 20, priced at $1,688 found 6 days ago
American Airlines
Wed, Dec 31 - Sun, Jan 18
SDF
Louisville
ROB
Monrovia
$2,078 Roundtrip, found 2 hours ago
$2,078
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Dec 31 from Louisville to Monrovia, returning Sun, Jan 18, priced at $2,078 found 2 hours ago

Frequently asked questions

How much does a flight from Louisville Intl. Airport (SDF) to Roberts Intl. Airport (ROB) cost?
Get a cheap one-way flight from $1,669 or cheap return flight from $1,439 from Louisville Intl. Airport (SDF) to Roberts Intl. Airport (ROB) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Louisville Intl. Airport (SDF) to Roberts Intl. Airport (ROB)?
The cheapest month to fly from SDF to ROB is November, when demand is low. Off-peak months are generally when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Louisville Intl. Airport (SDF) to Roberts Intl. Airport (ROB)?
To find the cheapest airline flying from SDF to ROB, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Louisville Intl. Airport (SDF) to Roberts Intl. Airport (ROB)?
Direct flights from Louisville Intl. Airport (SDF) to Roberts Intl. Airport (ROB) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SDF to ROB?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Louisville Intl. Airport (SDF) to Roberts Intl. Airport (ROB)?
To avoid potential delays on the Louisville Intl. Airport (SDF) to Roberts Intl. Airport (ROB) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Louisville Intl. Airport (SDF) to Roberts Intl. Airport (ROB) last-minute?
Last-minute fares from SDF to ROB are usually more expensive. To lock in the lowest rates, start searching for flights early. That being said, if your travel plans are flexible, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a SDF to ROB flight and hotel package?
Compared with arranging hotels and flights separately, booking a SDF to ROB flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one convenient place will take the hassle out of planning your trip. Just pick your flights and choose from our extensive range of hotels, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Roberts Intl. Airport (ROB)?
Typically, it's possible to cancel or reschedule your SDF to ROB flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Louisville Intl.
Destination airport
Roberts Intl.
Airlines serving
American Airlines, United
Roundtrip price
$1,438
Distance
5159 mi

Book with confidence

Louisville to Monrovia Flights

The cheapest times to fly from Louisville to Monrovia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Louisville to Monrovia are during the month of November. You can find some of the cheapest flights from Louisville to Monrovia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Louisville to Monrovia

Sunday is one of the best days to book for cheap flights from Louisville to Monrovia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Louisville to Monrovia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Louisville to Monrovia in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,669 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Louisville to Monrovia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Louisville to Monrovia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Louisville to Monrovia Flights
*Available to One Key members.