$830 Cheap Flights from Monrovia (ROB) to Washington (IAD)

View $830 flight on Wed, Jan 21, 2026Opens in a new window

Popular airlines from Monrovia (ROB-Roberts Intl.) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Monrovia to Washington (ROB-IAD)

Prices were available within the past 7 days and start at $830 for one-way flights and $1,041 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Royal Air Maroc
Wed, Oct 1 - Mon, Oct 13
ROB
Monrovia
IAD
Washington
$1,041 Roundtrip, found 3 days ago
$1,041
Roundtrip
found 3 days ago
Select Royal Air Maroc flight, departing Wed, Oct 1 from Monrovia to Washington, returning Mon, Oct 13, priced at $1,041 found 3 days ago
Brussels Airlines
Wed, Dec 17 - Thu, Jan 15
ROB
Monrovia
IAD
Washington
$1,119 Roundtrip, found 5 days ago
$1,119
Roundtrip
found 5 days ago
Select Brussels Airlines flight, departing Wed, Dec 17 from Monrovia to Washington, returning Thu, Jan 15, priced at $1,119 found 5 days ago
United
Wed, Aug 27 - Sat, Sep 13
ROB
Monrovia
IAD
Washington
$1,134 Roundtrip, found 3 days ago
$1,134
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 27 from Monrovia to Washington, returning Sat, Sep 13, priced at $1,134 found 3 days ago
Brussels Airlines
Sat, Dec 20 - Mon, Jan 5
ROB
Monrovia
IAD
Washington
$1,137 Roundtrip, found 1 day ago
$1,137
Roundtrip
found 1 day ago
Select Brussels Airlines flight, departing Sat, Dec 20 from Monrovia to Washington, returning Mon, Jan 5, priced at $1,137 found 1 day ago
United
Sun, Aug 31 - Sat, Sep 13
ROB
Monrovia
IAD
Washington
$1,144 Roundtrip, found 3 days ago
$1,144
Roundtrip
found 3 days ago
Select United flight, departing Sun, Aug 31 from Monrovia to Washington, returning Sat, Sep 13, priced at $1,144 found 3 days ago
United
Wed, Aug 27 - Sun, Sep 14
ROB
Monrovia
IAD
Washington
$1,150 Roundtrip, found 3 days ago
$1,150
Roundtrip
found 3 days ago
Select United flight, departing Wed, Aug 27 from Monrovia to Washington, returning Sun, Sep 14, priced at $1,150 found 3 days ago
Brussels Airlines
Sat, Dec 20 - Mon, Jan 5
ROB
Monrovia
IAD
Washington
$1,152 Roundtrip, found 1 day ago
$1,152
Roundtrip
found 1 day ago
Select Brussels Airlines flight, departing Sat, Dec 20 from Monrovia to Washington, returning Mon, Jan 5, priced at $1,152 found 1 day ago
Brussels Airlines
Sat, Dec 20 - Mon, Jan 5
ROB
Monrovia
IAD
Washington
$1,157 Roundtrip, found 1 day ago
$1,157
Roundtrip
found 1 day ago
Select Brussels Airlines flight, departing Sat, Dec 20 from Monrovia to Washington, returning Mon, Jan 5, priced at $1,157 found 1 day ago
Ethiopian Airlines
Mon, Sep 8 - Sun, Sep 21
ROB
Monrovia
IAD
Washington
$1,195 Roundtrip, found 3 days ago
$1,195
Roundtrip
found 3 days ago
Select Ethiopian Airlines flight, departing Mon, Sep 8 from Monrovia to Washington, returning Sun, Sep 21, priced at $1,195 found 3 days ago
Kenya Airways
Thu, Aug 7 - Thu, Aug 14
ROB
Monrovia
IAD
Washington
$2,172 Roundtrip, found 11 hours ago
$2,172
Roundtrip
found 11 hours ago
Select Kenya Airways flight, departing Thu, Aug 7 from Monrovia to Washington, returning Thu, Aug 14, priced at $2,172 found 11 hours ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Washington Dulles Intl. IAD. Cheapest option available. Average driving time to city center is 36 minutes. Flights from $1,449
IAD
Washington Dulles Intl.
Cheapest
Average driving time to city center36 min
Flights from $1,449
Flights from Monrovia (ROB) to Washington (IAD)
Origin airport
Roberts Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Brussels Airlines, Ethiopian Airlines, Kenya Airways
Roundtrip price
$1,040
Distance
4721 mi

Monrovia to Washington Flights

The cheapest times to fly from Monrovia to Washington

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 Monrovia to Washington are during the month of October. You can find some of the cheapest flights from Monrovia to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Monrovia to Washington

Sunday is one of the best days to book for cheap flights from Monrovia to Washington: 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 Monrovia to Washington

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 Monrovia to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $830 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 Monrovia to Washington 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 Monrovia to Washington 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.

 

Frequently asked questions

How much does a flight from Roberts Intl. Airport (ROB) to Washington Dulles Intl. Airport (IAD) cost?
Discover the latest flight deals from ROB to IAD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ROB to IAD?
The cheapest flights from ROB to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ROB to IAD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from ROB to IAD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Roberts Intl. Airport (ROB) to Washington Dulles Intl. Airport (IAD)?
You'll have to hop on a flight with a layover if you're traveling from Roberts Intl. Airport (ROB) to Washington Dulles Intl. Airport (IAD). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from ROB to IAD?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change based on a number of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Roberts Intl. Airport (ROB) to Washington Dulles Intl. Airport (IAD)?
To avoid possible delays on the Roberts Intl. Airport (ROB) to Washington Dulles Intl. Airport (IAD) route, fly before 3 PM. Departures after this time have a 22% higher chance of being canceled.**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 Roberts Intl. Airport (ROB) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your plane ticket from ROB to IAD shortly before your journey is typically more expensive. But if you're flexible with your schedule, you could grab a cheap last-minute fare.
Is it cheaper to book a ROB to IAD flight and hotel package?
Compared with arranging hotels and flights separately, booking a ROB to IAD flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place will take the hassle out of travel planning. Simply secure your flights and choose from our wide range of hotels, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Roberts Intl. Airport (ROB) to Washington Dulles Intl. Airport (IAD)?
In most cases, you can cancel or modify your ROB to IAD flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you need further information, head to our Customer Service portal.

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*Available to One Key members.