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Liberia

$155+ 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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIR
dic. 6 — dic. 131
sáb. 12/6
sáb. 12/13
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Portland to Liberia are usually found in September or January, booked 58 days in advance, depart on a Sunday or Tuesday and return on a Monday

Cheap 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 noviembre 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$343
(Kiwi.com)

One-way from

$155
(SmartFares)

Popular in

March

Cheapest in

September

Average price

$629
Provider with most accurate pricing for Portland-Liberia flight deals.
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Provider most trusted by Cheapflights users for Portland-Liberia flights.
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From Portland to Liberia
Search Deals
One-way flight from Portland to Liberia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 noviembre 6, 2025.

This SmartFares deal was found by Cheapflights users on 11/4. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/59:30 pmPDX - LIR
1 stop18h 37mAlaska Airlines
sáb. 12/137:17 pmLIR - PDX
1 stop16h 19mAlaska Airlines
Deal found 11/4$351
This American Airlines deal was found by Cheapflights users on 11/3. 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.
vie. 12/121:28 pmPDX - LIR
1 stop22h 08mAmerican Airlines
jue. 12/181:21 pmLIR - PDX
1 stop13h 38mAmerican Airlines
Deal found 11/3$368
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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.
vie. 12/125:41 pmPDX - LIR
1 stop10h 39mAlaska Airlines
dom. 12/217:40 amLIR - PDX
1 stop16h 44mAlaska Airlines
Deal found 11/4$373
This Alaska Airlines deal was found by Cheapflights users on 11/6. 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.
vie. 12/128:28 pmPDX - LIR
1 stop31h 52mAlaska Airlines
mar. 12/237:40 amLIR - PDX
1 stop16h 44mAlaska Airlines
Deal found 11/6$380
This Delta deal was found by Cheapflights users on 11/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/167:22 pmPDX - LIR
2 stops15h 18mDelta
jue. 11/202:05 pmLIR - PDX
2 stops20h 26mDelta
Deal found 11/6$393
This American Airlines deal was found by Cheapflights users on 11/6. 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.
sáb. 11/1510:45 pmPDX - LIR
1 stop11h 33mAmerican Airlines
sáb. 11/223:13 pmLIR - PDX
1 stop11h 17mAmerican Airlines
Deal found 11/6$403
This Alaska Airlines deal was found by Cheapflights users on 11/4. 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.
jue. 12/119:30 pmPDX - LIR
1 stop30h 50mAlaska Airlines
mar. 12/169:00 amLIR - PDX
2 stops13h 35mAlaska Airlines
Deal found 11/4$417
This Alaska Airlines deal was found by Cheapflights users on 11/3. 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.
mar. 12/22:36 pmPDX - LIR
2 stops25h 31mAlaska Airlines
mar. 12/99:00 amLIR - PDX
1 stop13h 21mAlaska Airlines
Deal found 11/3$424
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/155:55 pmPDX - LIR
1 stop10h 25mAlaska Airlines
vie. 11/217:10 pmLIR - PDX
1 stop29h 14mAlaska Airlines
Deal found 11/6$425

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 noviembre 6, 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

mar. 1/20

7:24 am-6:01 pm

1 stop8h 37m

Liberia

jue. 1/29

11:20 am-8:34 pm

1 stop11h 14m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

mar. 1/27

5:00 am-6:37 pm

2 stops11h 37m

Liberia

mar. 2/10

8:35 am-10:53 pm

1 stop16h 18m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

dom. 2/1

5:30 pm-1:50 pm

2 stops18h 20m

Liberia

mié. 2/11

3:05 pm-9:29 am

2 stops20h 24m

$349

PortlandLiberia

PDX - LIR

PDXLIR

Portland

mar. 1/20

10:15 pm-2:13 pm

2 stops13h 58m

Liberia

jue. 1/29

3:23 pm-11:22 am

2 stops21h 59m

$349

PortlandLiberia

PDX - LIR

PDXLIR

Portland

lun. 1/12

9:45 pm-12:50 pm

1 stop13h 05m

Liberia

vie. 1/23

3:05 pm-12:46 pm

2 stops23h 41m

$349

PortlandLiberia

PDX - LIR

PDXLIR

Portland

lun. 1/12

7:51 pm-1:10 pm

2 stops15h 19m

Liberia

dom. 1/25

9:30 am-11:06 pm

1 stop15h 36m

$359

PortlandLiberia

PDX - LIR

PDXLIR

Portland

sáb. 1/10

1:39 pm-1:24 pm

2 stops21h 45m

Liberia

jue. 1/22

3:05 pm-9:29 am

2 stops20h 24m

$363

PortlandLiberia

PDX - LIR

PDXLIR

Portland

lun. 1/26

12:40 am-1:24 pm

1 stop10h 44m

Liberia

mar. 2/10

2:05 pm-8:33 am

2 stops20h 28m

$363

PortlandLiberia

PDX - LIR

PDXLIR

Portland

lun. 1/12

9:45 pm-12:50 pm

1 stop13h 05m

Liberia

dom. 1/18

3:05 pm-8:32 pm

2 stops31h 27m

$363

PortlandLiberia

PDX - LIR

PDXLIR

Portland

vie. 12/12

5:41 pm-6:20 am

1 stop10h 39m

Liberia

dom. 12/21

7:40 am-10:24 pm

1 stop16h 44m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 17 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 November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 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 October 31, 2025.

The best time to book flights from Portland to Liberia is 42 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 $456). 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 noviembre 6, 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.

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 noviembre 6, 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
11,243 reviews

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,243 reviews
Alaska Airlines
8.0
Very good
11,243 reviews

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
9,003 reviews
Alaska Airlines
8.0
Very good
11,243 reviews

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,041 reviews
Alaska Airlines
8.0
Very good
11,243 reviews

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 Alaska Airlines, United Airlines, and Delta 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 9h 43m. 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, United Airlines ($348), American Airlines ($353), and Alaska Airlines ($375) offers the cheapest pricing from Portland to Liberia. United Airlines is currently priced 43% below the average price you’ll pay for this route.

  • 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 $456). 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 noviembre 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$348Average$599FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$353Average$642FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$375Average$599FlexibilityNo cancel feeOn-time75%

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