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Liberia

$202+ Cheap flights from Portland (PDX) to Liberia (LIR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIR
May 22 — May 291
Fri 5/22
Fri 5/29
1 adult, Economy
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Cheap 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 April 22, 2026.

This United Airlines deal was found by Cheapflights users on 4/22. 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.
Mon 8/105:00 am
PDX
-
LIR
1 stop9h 19m
United Airlines
Wed 12/162:20 pm
LIR
-
PDX
2 stops21h 20m
United Airlines
Deal found 4/22$441
This American Airlines deal was found by Cheapflights users on 4/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/51:45 pm
PDX
-
LIR
1 stop23h 00m
American Airlines
Tue 12/81:25 pm
LIR
-
PDX
1 stop12h 27m
American Airlines
Deal found 4/20$447
This United Airlines deal was found by Cheapflights users on 4/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:59 pm
PDX
-
LIR
1 stop13h 26m
United Airlines
Thu 5/2811:10 am
LIR
-
PDX
1 stop12h 38m
United Airlines
Deal found 4/18$450
This American Airlines deal was found by Cheapflights users on 4/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:40 pm
PDX
-
LIR
1 stop13h 00m
American Airlines
Wed 5/1312:30 pm
LIR
-
PDX
1 stop12h 23m
American Airlines
Deal found 4/18$455
This Alaska Airlines deal was found by Cheapflights users on 4/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:27 pm
PDX
-
LIR
1 stop19h 02m
Alaska Airlines
Mon 8/176:39 pm
LIR
-
PDX
1 stop15h 42m
Alaska Airlines
Deal found 4/20$464
This American Airlines deal was found by Cheapflights users on 4/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/51:45 pm
PDX
-
LIR
1 stop23h 00m
American Airlines
Mon 12/143:10 pm
LIR
-
PDX
2 stops21h 47m
American Airlines
Deal found 4/19$465
This American Airlines deal was found by Cheapflights users on 4/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:59 pm
PDX
-
LIR
1 stop12h 39m
American Airlines
Thu 9/102:10 pm
LIR
-
PDX
1 stop29h 51m
American Airlines
Deal found 4/17$466
This American Airlines deal was found by Cheapflights users on 4/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:28 pm
PDX
-
LIR
1 stop11h 56m
American Airlines
Sat 5/233:37 pm
LIR
-
PDX
1 stop10h 13m
American Airlines
Deal found 4/20$494

Find flight deals from Portland to Liberia

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Liberia (LIR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$441
(United Airlines)

One-way from

$202
(United Airlines)

Popular in

March

Cheapest in

September

Average price

$485
Provider with most accurate pricing for Portland-Liberia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Liberia flights.
Search Deals
From Portland to Liberia
Search Deals
One-way flight from Portland to Liberia
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 22, 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

Cheapest round-trip

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 5/20

5:35 pm-9:50 am

2 stops15h 15m

Liberia

Wed 5/27

1:20 pm-10:48 pm

1 stop10h 28m

$586

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 7/8

11:16 am-9:50 am

2 stops21h 34m

Liberia

Wed 7/15

3:27 pm-10:20 am

2 stops19h 53m

$689

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 7/15

5:15 am-9:50 am

3 stops27h 35m

Liberia

Thu 7/23

3:27 pm-12:50 am

2 stops34h 23m

$745
Quickest round-trip

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 6/15

11:59 pm-9:50 am

1 stop8h 51m

Liberia

Wed 7/1

11:10 am-10:48 pm

1 stop12h 38m

$761

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 7/15

1:14 pm-9:50 am

2 stops19h 36m

Liberia

Sat 7/25

3:27 pm-10:20 am

2 stops19h 53m

$775

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Fri 7/17

11:43 pm-2:41 pm

1 stop13h 58m

Liberia

Sun 7/26

3:41 pm-12:50 am

1 stop10h 09m

$779
Cheapest one-way

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 5/6

7:05 pm-3:19 pm

1 stop19h 14m

$202

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Thu 5/7

11:40 pm-1:40 pm

1 stop13h 00m

$216

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Thu 5/7

5:00 am-3:19 pm

1 stop9h 19m

$216
Quickest one-way

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 6/24

11:59 pm-9:50 am

1 stop8h 51m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Compare providers for flights from Portland to Liberia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Liberia in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland-Liberia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Liberia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Liberia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Liberia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Liberia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

How far ahead should I book a flight from Portland to Liberia?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Liberia. Price data was last updated on April 17, 2026.

The best time to book flights from Portland to Liberia is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Portland to Liberia?

Currently, September is the cheapest month in which you can book a flight from Portland to Liberia (average of $444). Flying from Portland to Liberia in March is currently the most expensive (average of $678). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Portland to Liberia?

Reviews of airlines servicing Liberia

Get insights into the airlines that provide service to Liberia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Liberia. Reviews last updated April 22, 2026.
Read through reviews of airlines operating flights from Portland to Liberia, such as Alaska Airlines,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,273 reviews

Comfort

7.8

Food

7.0

Boarding

8.1

Overall

7.9

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Alaska Airlines
7.9
Good
12,273 reviews
Alaska Airlines
7.9
Good
12,273 reviews

Comfort

7.8

Food

7.0

Boarding

8.1

Overall

7.9

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
United Airlines
7.4
Good
9,635 reviews
Alaska Airlines
7.9
Good
12,273 reviews

Comfort

7.8

Food

7.0

Boarding

8.1

Overall

7.9

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
American Airlines
7.1
Good
11,655 reviews
Alaska Airlines
7.9
Good
12,273 reviews

Comfort

7.8

Food

7.0

Boarding

8.1

Overall

7.9

Crew

8.5

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well

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.

  • How long is the flight from Portland to Liberia?

    Airlines like United Airlines fly from Portland to Liberia in about 15h 15m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 3254 mi.

  • What are the cheapest airlines flying from Portland to Liberia round-trip?

    According to our current data, Alaska Airlines ($344), American Airlines ($344), and United Airlines ($348) offers the cheapest pricing from Portland to Liberia. Alaska Airlines is currently priced 38% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Portland to Liberia one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $140. Users have also found prices from $160 and $190 on United Airlines and Alaska Airlines, respectively.

  • 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.

  • What is the cheapest month to book a flight from Portland to Liberia?

    Currently, September is the cheapest month in which you can book a flight from Portland to Liberia (average of $444). Flying from Portland to Liberia in March is currently the most expensive (average of $678). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Liberia?

Book flights to Liberia if you plan to visit one of these locations
Culebra

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Top 3 airlines flying from Portland to Liberia

Discover the top 3 airlines that operate flights from Portland to Liberia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$344Average$550FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$344Average$579FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$348Average$559FlexibilityNo cancel feeOn-time69%

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