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Cheap flights from Portland to Liberia from $1,241

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 2/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Brussels Airlines Logo
7:00 am - 9:15 pm
PDX
-
ROB
30h 15m
3 stops
Brussels Airlines Logo
10:45 pm - 7:14 pm
ROB
-
PDX
27h 29m
2 stops
$1,241Brussels Airlines
Tue, Feb 24 - Wed, Mar 11
Brussels Airlines Logo
7:00 am - 6:45 pm
PDX
-
ROB
51h 45m
3 stops
Brussels Airlines Logo
10:45 pm - 7:14 pm
ROB
-
PDX
27h 29m
2 stops
$1,281Brussels Airlines
Wed, Feb 25 - Tue, Mar 10
Brussels Airlines Logo
7:00 am - 6:45 pm
PDX
-
ROB
27h 45m
2 stops
Brussels Airlines Logo
10:45 pm - 9:58 pm
ROB
-
PDX
30h 13m
2 stops
$1,286Brussels Airlines
Thu, Feb 26 - Tue, Mar 10
Brussels Airlines Logo
11:59 pm - 6:45 pm
PDX
-
ROB
34h 46m
2 stops
Brussels Airlines Logo
10:45 pm - 7:14 pm
ROB
-
PDX
27h 29m
2 stops
$1,300Brussels Airlines
Wed, Feb 25 - Wed, Mar 11
Brussels Airlines Logo
7:00 am - 6:45 pm
PDX
-
ROB
51h 45m
3 stops
Brussels Airlines Logo
10:45 pm - 7:14 pm
ROB
-
PDX
51h 29m
3 stops
$1,302Brussels Airlines
Wed, Feb 25 - Wed, Mar 11
United Airlines Logo
11:59 pm - 9:15 pm
PDX
-
ROB
37h 16m
3 stops
United Airlines Logo
10:45 pm - 9:58 pm
ROB
-
PDX
30h 13m
2 stops
$1,319United Airlines
Thu, Feb 26 - Tue, Mar 10
SWISS Logo
10:56 am - 9:15 pm
PDX
-
ROB
26h 19m
3 stops
SWISS Logo
10:45 pm - 11:04 pm
ROB
-
PDX
31h 19m
3 stops
$1,410SWISS
Tue, Feb 24 - Tue, Mar 10
United Airlines Logo
11:59 pm - 6:45 pm
PDX
-
ROB
34h 46m
2 stops
United Airlines Logo
10:45 pm - 8:43 pm
ROB
-
PDX
29h 58m
2 stops
$1,495United Airlines
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
1:18 pm - 6:45 pm
PDX
-
ROB
45h 27m
3 stops
United Airlines Logo
10:45 pm - 8:43 pm
ROB
-
PDX
29h 58m
2 stops
$1,501United Airlines
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
11:59 pm - 6:45 pm
PDX
-
ROB
34h 46m
2 stops
United Airlines Logo
10:45 pm - 11:55 am
ROB
-
PDX
45h 10m
2 stops
$1,505United Airlines
Wed, Feb 18 - Sun, Feb 22

Brussels Airlines flights from Portland to Liberia

Our best Brussels Airlines deals on Portland to Liberia flight tickets
Brussels Airlines
Feb 24
PDX7:00 amPortland
30h 15m
3 stops
ROB9:15 pmMonrovia Roberts Intl
Mar 10
ROB10:45 pmMonrovia Roberts Intl
27h 29m
2 stops
PDX7:14 pmPortland
$1,241
Brussels Airlines
Feb 25
PDX7:00 amPortland
51h 45m
3 stops
ROB6:45 pmMonrovia Roberts Intl
Mar 10
ROB10:45 pmMonrovia Roberts Intl
27h 29m
2 stops
PDX7:14 pmPortland
$1,281
Brussels Airlines
Feb 26
PDX7:00 amPortland
27h 45m
2 stops
ROB6:45 pmMonrovia Roberts Intl
Mar 10
ROB10:45 pmMonrovia Roberts Intl
30h 13m
2 stops
PDX9:58 pmPortland
$1,286

United Airlines flights from Portland to Liberia

Our best United Airlines deals on Portland to Liberia flight tickets
United Airlines
Feb 26
PDX11:59 pmPortland
37h 16m
3 stops
ROB9:15 pmMonrovia Roberts Intl
Mar 11
ROB10:45 pmMonrovia Roberts Intl
27h 29m
2 stops
PDX7:14 pmPortland
$1,319
United Airlines
Feb 18
PDX11:59 pmPortland
34h 46m
2 stops
ROB6:45 pmMonrovia Roberts Intl
Feb 22
ROB10:45 pmMonrovia Roberts Intl
29h 58m
2 stops
PDX8:43 pmPortland
$1,495
United Airlines
Feb 18
PDX1:18 pmPortland
45h 27m
3 stops
ROB6:45 pmMonrovia Roberts Intl
Feb 22
ROB10:45 pmMonrovia Roberts Intl
29h 58m
2 stops
PDX8:43 pmPortland
$1,501

momondo 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, momondo users made 832,500 searches. Data last updated February 5, 2026.
Use the filters below to find and compare flights from Portland to Liberia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Tue 2/24

7:00 am-9:15 pm

3 stops30h 15m

Monrovia Roberts Intl

Wed 3/11

10:45 pm-7:14 pm

2 stops27h 29m

$1,241

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Wed 2/25

7:00 am-6:45 pm

3 stops51h 45m

Monrovia Roberts Intl

Tue 3/10

10:45 pm-7:14 pm

2 stops27h 29m

$1,281

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Thu 2/26

7:00 am-6:45 pm

2 stops27h 45m

Monrovia Roberts Intl

Tue 3/10

10:45 pm-9:58 pm

2 stops30h 13m

$1,286

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Wed 2/25

11:59 pm-6:45 pm

2 stops34h 46m

Monrovia Roberts Intl

Wed 3/11

10:45 pm-7:14 pm

2 stops27h 29m

$1,300

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Wed 2/25

7:00 am-6:45 pm

3 stops51h 45m

Monrovia Roberts Intl

Wed 3/11

10:45 pm-7:14 pm

3 stops51h 29m

$1,302

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Thu 2/26

11:59 pm-9:15 pm

3 stops37h 16m

Monrovia Roberts Intl

Tue 3/10

10:45 pm-9:58 pm

2 stops30h 13m

$1,319

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Tue 2/24

10:56 am-9:15 pm

3 stops26h 19m

Monrovia Roberts Intl

Tue 3/10

10:45 pm-11:04 pm

3 stops31h 19m

$1,410

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Wed 2/18

11:59 pm-6:45 pm

2 stops34h 46m

Monrovia Roberts Intl

Sun 2/22

10:45 pm-8:43 pm

2 stops29h 58m

$1,495

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Wed 2/18

1:18 pm-6:45 pm

3 stops45h 27m

Monrovia Roberts Intl

Sun 2/22

10:45 pm-8:43 pm

2 stops29h 58m

$1,501

PortlandMonrovia

PDX - ROB

PDXROB

Portland

Wed 2/18

11:59 pm-6:45 pm

2 stops34h 46m

Monrovia Roberts Intl

Sun 2/22

10:45 pm-11:55 am

2 stops45h 10m

$1,505

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Portland to Liberia flight deals and tips

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

Fastest flight time

34h 46m

Direct flights

None
The fastest flight from Portland to Liberia takes 34h 46m
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.

  • How do I get Price Alerts for flights from Portland to Liberia?

    Price Alerts will notify you by email when the price for flights to Liberia from Portland decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Portland to Liberia with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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.

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