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$1,358+ Cheap flights from Portland (PDX) to Liberia

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — ROB
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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Find flight deals from Portland to Liberia

Cheapest flights from Portland to Liberia
Explore the most affordable flight options available from Portland to Liberia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2025.

This Ovago deal was found by Cheapflights users on 11/8. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/218:32 pmPDX - ROB
3 stops48h 03mBritish Airways
Sat 2/213:05 amROB - PDX
2 stops44h 50mBritish Airways
Deal found 11/8$2,499
This United Airlines deal was found by Cheapflights users on 11/8. 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.
Sun 12/2111:55 pmPDX - ROB
3 stops37h 20mUnited Airlines
Sun 2/2210:45 pmROB - PDX
2 stops29h 58mUnited Airlines
Deal found 11/8$2,609
This Ovago deal was found by Cheapflights users on 11/8. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:45 pmPDX - ROB
2 stops40h 05mMultiple Airlines
Sat 2/213:05 amROB - PDX
2 stops44h 50mMultiple Airlines
Deal found 11/8$4,910

Cheap flight deals from Portland to Liberia

Keep the following information in mind while searching for Portland to Liberia flight deals. Data was last updated November 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,358
(United Airlines)
Provider with most accurate pricing for Portland-Monrovia Roberts Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Monrovia Roberts Intl flights.
Search Deals
From Portland to Liberia
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Liberia 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 November 10, 2025.
Use the filters below to find and compare flights from Portland to Liberia that are best for you.

Fly from

Portland

Fly to

Liberia

Route

Depart

Return

Price

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Thu 3/5

11:10 pm-9:15 pm

3 stops38h 05m

Monrovia Roberts Intl

Sun 3/8

10:45 pm-10:16 pm

2 stops30h 31m

$1,358

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Mon 1/5

7:10 am-4:35 am

2 stops37h 25m

Monrovia Roberts Intl

Thu 1/22

3:05 am-8:43 pm

2 stops49h 38m

$1,593

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Sun 1/4

10:52 pm-9:15 pm

3 stops38h 23m

Monrovia Roberts Intl

Sun 1/25

10:45 pm-6:56 pm

2 stops28h 11m

$1,734

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Mon 1/5

11:02 am-9:15 pm

3 stops26h 13m

Monrovia Roberts Intl

Sun 1/25

10:45 pm-6:56 pm

2 stops28h 11m

$1,734

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Mon 1/5

2:56 pm-4:35 am

3 stops29h 39m

Monrovia Roberts Intl

Thu 1/22

3:05 am-8:27 pm

3 stops49h 22m

$1,794

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Sun 1/4

10:52 pm-9:15 pm

3 stops38h 23m

Monrovia Roberts Intl

Wed 1/21

10:45 pm-6:56 pm

2 stops28h 11m

$1,909

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Mon 1/5

11:02 am-9:15 pm

3 stops26h 13m

Monrovia Roberts Intl

Sat 1/24

10:45 pm-10:32 pm

2 stops31h 47m

$1,909

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Mon 1/5

11:02 am-9:15 pm

3 stops26h 13m

Monrovia Roberts Intl

Fri 1/23

10:45 pm-6:56 pm

2 stops28h 11m

$1,909

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

Best time to book a flight from Portland to Liberia

Have a flexible travel schedule? Discover the best time to fly to Liberia from Portland 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 Portland to Liberia

What is the cheapest time of day to fly from PDX to LR?

Find hourly flight availability from Portland to Liberia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 10, 2025.

It’s typically best to fly out from Portland to Liberia in the afternoon. Doing so could potentially save you 16% on the flight price compared to flying in the evening, which is usually more expensive.

Related info for your journey

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

  • What airport do you fly from for flights from Portland to Liberia?

    Located just 6.0 mi from the city center, Portland (PDX) is the airport most travelers will use when flying to Liberia from Portland.

  • How long is the flight from Portland to Liberia?

    Airlines like United Airlines and Royal Air Maroc fly from Portland to Liberia in about 37h 25m. The time it takes to get you to your destination can typically vary by up to 40m. Airlines will cover a distance of 6953 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Portland to Liberia that include hotel bookings?

    Yes. In addition to deals on Portland to Liberia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Liberia?

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

  • Can I find deals for business class flights from Portland to Liberia?

    Yes. Cheapflights offers flight deals from Portland to Liberia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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