$1,309+ Cheap flights from Oregon to Monrovia (ROB)
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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ROB
Jan 17 — Jan 241
1 adult, Economy
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1. Tell us where you want to go
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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 Oregon to Monrovia
Cheapest flights from Oregon to MonroviaExplore the most affordable flight options available from Oregon to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.
Explore the most affordable flight options available from Oregon to Monrovia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.
This Orbitz deal was found by Cheapflights users on 12/18. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/217:10 amPDX - ROB
3 stops26h 40mMultiple Airlines
Tue 12/2311:05 amROB - PDX
3 stops40h 39mMultiple Airlines
Deal found 12/18![Multiple Airlines logo]()
$6,811
Find flight deals from Oregon to Monrovia
Keep the following information in mind while searching for Oregon to Monrovia flight deals. Data was last updated December 18, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $1,309 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Oregon to Monrovia 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 December 18, 2025.
Use the filters below to find and compare flights from Oregon to Monrovia that are best for you.
Fly from
Oregon
Fly to
Monrovia
Route
Depart
Return
Price
PortlandMonrovia
PDX - ROB
PDXROB
Portland
Fri 2/20
10:56 am-9:15 pm
3 stops26h 19m
Monrovia Roberts Intl
Tue 2/24
10:45 pm-8:43 pm
2 stops29h 58m
$1,309
Best time to book a flight from Oregon to Monrovia
Have a flexible travel schedule? Discover the best time to fly to Monrovia from Oregon 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 Oregon to Monrovia
What is the cheapest time of day to fly from OR to ROB?
Find hourly flight availability from Oregon to Monrovia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.
When flying from Oregon to Monrovia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 16% versus a flight in the evening.