When did momondo last update prices for flights from Portland Airport to Liberia?

Prices for flights from Portland Airport to Liberia are refreshed on a daily basis.

How old do you have to be to fly from Portland Airport to Liberia?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Liberia.

What documentation or ID do you need to fly to Liberia?

The travel and health documents you'll need for your trip to Liberia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Liberia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$1,358 Cheap Flights from Portland to Liberia in 2025/26

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7:11 am - 6:45 pmPDX-ROB

27h 34m2 stops

10:45 pm - 8:25 pmROB-PDX

28h 40m2 stops

$1,358United Airlines

Find Deal

Thu, Mar 5 - Sun, Mar 8

7:11 am - 6:45 pmPDX-ROB

27h 34m2 stops

10:45 pm - 7:00 pmROB-PDX

27h 15m2 stops

$1,420Brussels Airlines

Find Deal

Thu, Mar 5 - Sun, Mar 8

11:10 pm - 9:15 pmPDX-ROB

38h 05m3 stops

10:45 pm - 10:16 pmROB-PDX

30h 31m2 stops

$1,484United Airlines

Find Deal

Thu, Mar 5 - Sun, Mar 8

7:10 am - 9:15 pmPDX-ROB

30h 05m3 stops

10:45 pm - 6:56 pmROB-PDX

28h 11m2 stops

$1,584United Airlines

Find Deal

Mon, Jan 5 - Fri, Jan 23

7:10 am - 4:35 amPDX-ROB

37h 25m2 stops

3:05 am - 8:43 pmROB-PDX

49h 38m2 stops

$1,625Royal Air Maroc

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Mon, Jan 5 - Thu, Jan 22

7:10 am - 4:35 amPDX-ROB

37h 25m2 stops

3:05 am - 8:43 pmROB-PDX

49h 38m2 stops

$1,637Royal Air Maroc

Find Deal

Mon, Jan 5 - Thu, Jan 22

2:56 pm - 4:35 amPDX-ROB

29h 39m3 stops

3:05 am - 8:27 pmROB-PDX

49h 22m3 stops

$1,770British Airways

Find Deal

Mon, Jan 5 - Thu, Jan 22

2:56 pm - 4:35 amPDX-ROB

29h 39m3 stops

3:05 am - 7:02 pmROB-PDX

47h 57m3 stops

$1,772British Airways

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Mon, Jan 5 - Thu, Jan 22

5:45 pm - 4:35 amPDX-ROB

26h 50m2 stops

3:05 am - 8:27 pmROB-PDX

49h 22m3 stops

$1,790British Airways

Find Deal

Mon, Jan 5 - Thu, Jan 22

5:45 pm - 4:35 amPDX-ROB

26h 50m2 stops

3:05 am - 7:02 pmROB-PDX

47h 57m3 stops

$1,791British Airways

Find Deal

Mon, Jan 5 - Thu, Jan 22

United Airlines flights from Portland to Liberia

Our best United Airlines deals on Portland to Liberia flight tickets

United Airlines

Mar 5

PDX11:10 pmPortland

38h 05m

3 stops

ROB9:15 pmMonrovia Roberts Intl

Mar 8

ROB10:45 pmMonrovia Roberts Intl

28h 40m

2 stops

PDX8:25 pmPortland

$1,358

Find similar

United Airlines

Mar 5

PDX11:10 pmPortland

38h 05m

3 stops

ROB9:15 pmMonrovia Roberts Intl

Mar 8

ROB10:45 pmMonrovia Roberts Intl

30h 31m

2 stops

PDX10:16 pmPortland

$1,484

Find similar

United Airlines

Jan 5

PDX7:10 amPortland

30h 05m

3 stops

ROB9:15 pmMonrovia Roberts Intl

Jan 23

ROB10:45 pmMonrovia Roberts Intl

28h 11m

2 stops

PDX6:56 pmPortland

$1,584

Find similar

Brussels Airlines flights from Portland to Liberia

Our best Brussels Airlines deals on Portland to Liberia flight tickets

Brussels Airlines

Mar 5

PDX7:11 amPortland

27h 34m

2 stops

ROB6:45 pmMonrovia Roberts Intl

Mar 8

ROB10:45 pmMonrovia Roberts Intl

27h 15m

2 stops

PDX7:00 pmPortland

$1,420

Find similar

Brussels Airlines

Jan 5

PDX7:10 amPortland

30h 05m

2 stops

ROB9:15 pmMonrovia Roberts Intl

Jan 23

ROB10:45 pmMonrovia Roberts Intl

28h 11m

2 stops

PDX6:56 pmPortland

$1,893

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Thu 3/5

7:11 am-6:45 pm

2 stops27h 34m

Monrovia Roberts Intl

Sun 3/8

10:45 pm-8:25 pm

2 stops28h 40m

$1,358

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Thu 3/5

7:11 am-6:45 pm

2 stops27h 34m

Monrovia Roberts Intl

Sun 3/8

10:45 pm-7:00 pm

2 stops27h 15m

$1,420

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

$1,484

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Mon 1/5

7:10 am-9:15 pm

3 stops30h 05m

Monrovia Roberts Intl

Fri 1/23

10:45 pm-6:56 pm

2 stops28h 11m

$1,584

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

$1,625

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

$1,637

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

$1,770

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-7:02 pm

3 stops47h 57m

$1,772

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Mon 1/5

5:45 pm-4:35 am

2 stops26h 50m

Monrovia Roberts Intl

Thu 1/22

3:05 am-8:27 pm

3 stops49h 22m

$1,790

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Mon 1/5

5:45 pm-4:35 am

2 stops26h 50m

Monrovia Roberts Intl

Thu 1/22

3:05 am-7:02 pm

3 stops47h 57m

$1,791

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Portland to Liberia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Liberia?

On average, the least expensive day to fly to Liberia from Portland is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,726. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Liberia for around $3,660.

What is the cheapest time of day to depart on your flight to Liberia?

In the morning is the cheapest time of day to fly from Portland to Liberia when you can find flight prices for as low as $1,890. Flying to Liberia in the morning is an ideal time because this is during off-peak travel hours. Flights to Liberia are more costly in the evening, with an average ticket price of $2,068. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Portland to Liberia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Liberia

Direct flights	None

There are no direct flights from Portland to Liberia. There are no popular flight routes from Portland to Liberia.

Search flight deals

When did momondo last update prices for flights from Portland Airport to Liberia?
Prices for flights from Portland Airport to Liberia are refreshed on a daily basis.
How old do you have to be to fly from Portland Airport to Liberia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Liberia.
What documentation or ID do you need to fly to Liberia?
The travel and health documents you'll need for your trip to Liberia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Liberia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Liberia?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Liberia. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Liberia with flexible booking policies on momondo?

Yes. All flights to Liberia from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Portland to Liberia?

Once you have performed a search for Portland to Liberia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Portland to Liberia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Portland to Liberia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Liberia and let you know when they change.

An easier way to manage your Liberia trip

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Flights to Monroviafrom $1,014

Cheap flights from Portland to Liberia from $1,358

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Liberia departing on 3/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Portland to Liberia

Cheap round-trip flights

United Airlines flights from Portland to Liberia

Our best United Airlines deals on Portland to Liberia flight tickets

Brussels Airlines flights from Portland to Liberia

Our best Brussels Airlines deals on Portland to Liberia flight tickets

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Use the filters below to find and compare flights from Portland to Liberia that are best for you.

See travel insights to Liberia from

How to get the cheapest flight ticket from Portland to Liberia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Liberia?

What is the cheapest time of day to depart on your flight to Liberia?

Cheap Portland to Liberia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Liberia

Direct flights

When did momondo last update prices for flights from Portland Airport to Liberia?

How old do you have to be to fly from Portland Airport to Liberia?

What documentation or ID do you need to fly to Liberia?

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Liberia?

Can I find flights from Portland to Liberia with flexible booking policies on momondo?

How can momondo help me find flights from Portland to Liberia?

I’m not ready to book a flight from Portland to Liberia right now. Can momondo alert me if prices change?

An easier way to manage your Liberia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Liberia

Popular cities in Liberia

Popular flights according to clicks in the last 7 days on momondo