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Liberia

$151+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIR
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Find cheap flights from Portland to Liberia with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Portland to Liberia are usually found in September or January, booked 55 days in advance, depart on a Sunday or Tuesday and return on a Monday

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 December 12, 2025.

This American Airlines deal was found by Cheapflights users on 12/10. 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.
Sun 12/1410:15 pmPDX - LIR
1 stop12h 04mAmerican Airlines
Wed 12/243:13 pmLIR - PDX
1 stop11h 46mAmerican Airlines
Deal found 12/10$439
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/147:00 amPDX - LIR
1 stop9h 37mUnited Airlines
Wed 12/242:20 pmLIR - PDX
2 stops21h 41mUnited Airlines
Deal found 12/10$443
This American Airlines deal was found by Cheapflights users on 12/9. 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.
Fri 12/1211:59 pmPDX - LIR
1 stop10h 13mAmerican Airlines
Thu 12/253:13 pmLIR - PDX
1 stop11h 46mAmerican Airlines
Deal found 12/9$453
This American Airlines deal was found by Cheapflights users on 12/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1210:15 pmPDX - LIR
1 stop12h 14mAmerican Airlines
Thu 12/181:21 pmLIR - PDX
1 stop13h 38mAmerican Airlines
Deal found 12/8$497
This United Airlines deal was found by Cheapflights users on 12/11. 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 12/115:00 amPDX - LIR
2 stops11h 37mUnited Airlines
Thu 12/188:35 amLIR - PDX
1 stop16h 24mUnited Airlines
Deal found 12/11$501
This American Airlines deal was found by Cheapflights users on 12/11. 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 12/1311:59 pmPDX - LIR
1 stop12h 20mAmerican Airlines
Sun 12/213:13 pmLIR - PDX
1 stop11h 46mAmerican Airlines
Deal found 12/11$508
This American Airlines deal was found by Cheapflights users on 12/9. 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.
Fri 12/1211:59 pmPDX - LIR
1 stop12h 20mAmerican Airlines
Sun 12/211:21 pmLIR - PDX
1 stop13h 38mAmerican Airlines
Deal found 12/9$522

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$345
(Alaska Airlines)

One-way from

$151
(Kiwi.com)

Popular in

April

Cheapest in

September

Average price

$660
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. 13% potential increase in price ($94 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 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

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sun 1/18

5:00 am-4:08 pm

1 stop9h 08m

Liberia

Tue 1/27

2:20 pm-10:53 pm

1 stop10h 33m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Tue 1/20

7:24 am-6:01 pm

1 stop8h 37m

Liberia

Thu 1/29

11:20 am-8:34 pm

1 stop11h 14m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Tue 2/24

10:40 pm-12:17 pm

1 stop11h 37m

Liberia

Wed 3/4

1:20 pm-11:59 pm

1 stop12h 39m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sun 2/22

9:30 pm-5:58 pm

1 stop18h 28m

Liberia

Thu 3/5

7:08 pm-9:35 am

1 stop16h 27m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sun 2/1

10:15 pm-12:37 pm

1 stop12h 22m

Liberia

Wed 2/11

1:21 pm-11:46 pm

1 stop12h 25m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 2/23

2:30 pm-6:45 am

1 stop14h 15m

Liberia

Fri 3/6

7:08 pm-9:35 am

1 stop16h 27m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sat 1/17

11:01 pm-2:13 pm

1 stop13h 12m

Liberia

Tue 1/27

1:21 pm-11:46 pm

1 stop12h 25m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 2/23

12:40 am-1:30 pm

1 stop10h 50m

Liberia

Thu 3/5

2:05 pm-9:25 am

2 stops21h 20m

$348

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sun 2/22

5:10 pm-1:50 pm

2 stops18h 40m

Liberia

Thu 3/5

2:05 pm-9:25 am

2 stops21h 20m

$348

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 2/25

10:24 am-1:50 pm

2 stops25h 26m

Liberia

Thu 3/5

3:05 pm-12:02 pm

2 stops22h 57m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 18 results
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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Liberia flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 5, 2025.

The best time to book flights from Portland to Liberia is 55 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, January is the cheapest month in which you can book a flight from Portland to Liberia (average of $275). Flying from Portland to Liberia in April is currently the most expensive (average of $403). 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.

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

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 December 12, 2025.

It’s optimal to fly from Portland to Liberia at noon. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight in the morning.

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 December 12, 2025.
Read through reviews of airlines operating flights from Portland to Liberia, such as Alaska Airlines, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,431 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,431 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,095 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,049 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

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, Alaska Airlines, and American Airlines fly from Portland to Liberia in about 8h 37m. The time it takes to get you to your destination can typically vary by up to 3h. Airlines will cover a distance of 3254 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, American Airlines ($344), Alaska Airlines ($344), and United Airlines ($348) offers the cheapest pricing from Portland to Liberia. American Airlines is currently priced 43% 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 $156 and $160 on Delta and United 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, January is the cheapest month in which you can book a flight from Portland to Liberia (average of $275). Flying from Portland to Liberia in April is currently the most expensive (average of $403). 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$344Average$638FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$346Average$592FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$348Average$588FlexibilityNo cancel feeOn-time69%

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