$217+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIR
Sep 1 — Sep 81
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Liberia with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
Last-minute
One-way
Cheapest flights from Portland to LiberiaExplore 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 August 2, 2026.
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 August 2, 2026.
This United Airlines deal was found by Cheapflights users on 7/30. 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 9/67:15 pm
PDX
- LIR
2 stops15h 55m
United Airlines
Fri 9/111:20 pm
LIR
- PDX
1 stop10h 55m
United Airlines
Deal found 7/30![United Airlines logo]()
$466
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Mon 9/2111:06 pm
PDX
- LIR
2 stops13h 12m
American Airlines
Fri 9/252:47 pm
LIR
- PDX
2 stops23h 30m
American Airlines
Deal found 7/29![American Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 7/29. 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 10/511:59 pm
PDX
- LIR
1 stop11h 11m
United Airlines
Wed 10/141:20 pm
LIR
- PDX
2 stops21h 16m
United Airlines
Deal found 7/29![United Airlines logo]()
$480
This American Airlines deal was found by Cheapflights users on 7/30. 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 11/142:34 pm
PDX
- LIR
1 stop22h 01m
American Airlines
Fri 11/203:35 pm
LIR
- PDX
2 stops21h 45m
American Airlines
Deal found 7/30![American Airlines logo]()
$482
This American Airlines deal was found by Cheapflights users on 7/31. 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 12/510:45 pm
PDX
- LIR
1 stop11h 40m
American Airlines
Mon 12/143:28 pm
LIR
- PDX
2 stops21h 37m
American Airlines
Deal found 7/31![American Airlines logo]()
$485
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/2511:08 pm
PDX
- LIR
2 stops13h 10m
American Airlines
Tue 9/292:47 pm
LIR
- PDX
2 stops21h 12m
American Airlines
Deal found 7/30![American Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 9/2511:59 pm
PDX
- LIR
1 stop11h 11m
United Airlines
Mon 10/51:20 pm
LIR
- PDX
1 stop10h 01m
United Airlines
Deal found 7/28![United Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sat 11/75:00 am
PDX
- LIR
2 stops11h 37m
United Airlines
Sat 11/144:56 pm
LIR
- PDX
2 stops19h 22m
United Airlines
Deal found 7/31![United Airlines logo]()
$523
This American Airlines deal was found by Cheapflights users on 7/30. 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 9/611:34 pm
PDX
- LIR
2 stops13h 04m
American Airlines
Fri 9/112:47 pm
LIR
- PDX
2 stops21h 12m
American Airlines
Deal found 7/30![American Airlines logo]()
$525
This American Airlines deal was found by Cheapflights users on 7/29. 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 9/411:30 pm
PDX
- LIR
1 stop10h 47m
American Airlines
Sun 9/132:47 pm
LIR
- PDX
2 stops21h 08m
American Airlines
Deal found 7/29![American Airlines logo]()
$529
Best flights from Portland to LiberiaDiscover carefully curated flight deals from Portland to Liberia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2026.
Discover carefully curated flight deals from Portland to Liberia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 2, 2026.
This United Airlines deal was found by Cheapflights users on 7/29. 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 10/57:33 pm
PDX
- LIR
2 stops15h 37m
United Airlines
Wed 10/141:20 pm
LIR
- PDX
2 stops21h 16m
United Airlines
Deal found 7/29![United Airlines logo]()
$471
This Delta deal was found by Cheapflights users on 7/28. 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.
Fri 12/47:33 pm
PDX
- LIR
2 stops16h 37m
Delta
Sat 12/123:25 pm
LIR
- PDX
2 stops20h 36m
Delta
Deal found 7/28![Delta logo]()
$585
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Mon 1/44:34 pm
PDX
- LIR
1 stop12h 38m
Alaska Airlines
Fri 1/1510:00 am
LIR
- PDX
1 stop12h 31m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$589
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sat 11/77:09 am
PDX
- LIR
1 stop9h 25m
United Airlines
Sat 11/144:56 pm
LIR
- PDX
2 stops21h 26m
United Airlines
Deal found 7/31![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 9/2511:59 pm
PDX
- LIR
1 stop11h 11m
United Airlines
Mon 10/51:20 pm
LIR
- PDX
1 stop10h 01m
United Airlines
Deal found 7/28![United Airlines logo]()
$504
This Delta deal was found by Cheapflights users on 8/2. 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.
Fri 9/115:10 pm
PDX
- LIR
2 stops17h 50m
Delta
Tue 9/151:25 pm
LIR
- PDX
2 stops24h 27m
Delta
Deal found 8/2![Delta logo]()
$585
This Delta deal was found by Cheapflights users on 7/31. 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.
Mon 1/113:10 pm
PDX
- LIR
1 stop20h 20m
Delta
Fri 1/223:25 pm
LIR
- PDX
2 stops23h 14m
Delta
Deal found 7/31![Delta logo]()
$585
This United Airlines deal was found by Cheapflights users on 7/31. 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 10/265:00 am
PDX
- LIR
1 stop9h 10m
United Airlines
Fri 10/3011:50 am
LIR
- PDX
1 stop12h 19m
United Airlines
Deal found 7/31![United Airlines logo]()
$586
This United Airlines deal was found by Cheapflights users on 8/1. 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 9/217:00 am
PDX
- LIR
2 stops28h 10m
United Airlines
Fri 9/251:20 pm
LIR
- PDX
1 stop10h 01m
United Airlines
Deal found 8/1![United Airlines logo]()
$591
Last-minute flights from Portland to LiberiaDiscover last-minute flight deals from Portland to Liberia. Data last updated August 2, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Liberia. Data last updated August 2, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/710:59 pm
PDX
- LIR
1 stop11h 05m
American Airlines
Fri 8/212:45 pm
LIR
- PDX
2 stops21h 09m
American Airlines
Deal found 7/29![American Airlines logo]()
$599
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 8/1310:59 pm
PDX
- LIR
2 stops13h 39m
American Airlines
Wed 8/1912:35 pm
LIR
- PDX
2 stops23h 19m
American Airlines
Deal found 7/28![American Airlines logo]()
$604
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/237:07 pm
PDX
- LIR
2 stops16h 03m
United Airlines
Thu 9/101:20 pm
LIR
- PDX
1 stop10h 55m
United Airlines
Deal found 7/31![United Airlines logo]()
$591
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/237:00 am
PDX
- LIR
2 stops28h 10m
United Airlines
Sat 9/121:20 pm
LIR
- PDX
3 stops21h 51m
United Airlines
Deal found 7/31![United Airlines logo]()
$605
This Delta deal was found by Cheapflights users on 7/31. 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.
Mon 8/2410:55 pm
PDX
- LIR
1 stop12h 05m
Delta
Thu 9/101:25 pm
LIR
- PDX
2 stops23h 50m
Delta
Deal found 7/31![Delta logo]()
$551
This Delta deal was found by Cheapflights users on 7/31. 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.
Mon 8/245:08 pm
PDX
- LIR
2 stops17h 52m
Delta
Sun 9/61:25 pm
LIR
- PDX
2 stops23h 59m
Delta
Deal found 7/31![Delta logo]()
$585
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/247:10 am
PDX
- LIR
1 stop28h 00m
United Airlines
Thu 9/101:20 pm
LIR
- PDX
1 stop10h 55m
United Airlines
Deal found 7/31![United Airlines logo]()
$601
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/2611:34 pm
PDX
- LIR
2 stops13h 04m
American Airlines
Wed 9/212:35 pm
LIR
- PDX
2 stops23h 59m
American Airlines
Deal found 7/29![American Airlines logo]()
$504
This American Airlines deal was found by Cheapflights users on 7/31. 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 8/2611:34 pm
PDX
- LIR
2 stops13h 04m
American Airlines
Wed 9/92:47 pm
LIR
- PDX
2 stops23h 35m
American Airlines
Deal found 7/31![American Airlines logo]()
$609
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/274:07 pm
PDX
- LIR
2 stops19h 03m
United Airlines
Sat 9/121:20 pm
LIR
- PDX
2 stops21h 13m
United Airlines
Deal found 7/31![United Airlines logo]()
$619
One-way flights from Portland to LiberiaSearch for one-way flight options from Portland to Liberia. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
Search for one-way flight options from Portland to Liberia. Find affordable one-way fares based on user searches. Data last updated August 2, 2026.
This Orbitz deal was found by Cheapflights users on 7/29. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:00 am
PDX
- LIR
1 stop9h 29m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$217
This United Airlines deal was found by Cheapflights users on 7/31. 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 9/67:15 pm
PDX
- LIR
2 stops15h 55m
United Airlines
Deal found 7/31![United Airlines logo]()
$218
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/2110:59 pm
PDX
- LIR
1 stop11h 05m
American Airlines
Deal found 7/30![American Airlines logo]()
$231
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sat 9/57:10 am
PDX
- LIR
1 stop28h 00m
United Airlines
Deal found 7/31![United Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 7/29. 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.
Thu 8/131:25 pm
PDX
- LIR
2 stops21h 35m
Delta
Deal found 7/29![Delta logo]()
$253
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 11/277:26 pm
PDX
- LIR
2 stops15h 44m
United Airlines
Deal found 7/31![United Airlines logo]()
$255
This Delta deal was found by Cheapflights users on 7/31. 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.
Sun 9/610:55 pm
PDX
- LIR
1 stop12h 05m
Delta
Deal found 7/31![Delta logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Mon 8/109:27 pm
PDX
- LIR
1 stop19h 02m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$271
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 8/1212:45 pm
PDX
- LIR
2 stops22h 25m
United Airlines
Deal found 7/29![United Airlines logo]()
$273
This Delta deal was found by Cheapflights users on 7/29. 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.
Sun 8/97:05 am
PDX
- LIR
2 stops27h 55m
Delta
Deal found 7/29![Delta logo]()
$277
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 August 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $466 (United Airlines) |
One-way from | $217 (Orbitz) |
Popular in | June |
Cheapest in | April |
Average price | $670 |
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 August 2, 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
Cheapest round-trip
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Mon 10/5
7:33 pm-12:10 pm
2 stops15h 37m
Liberia
Wed 10/14
1:20 pm-9:36 am
2 stops21h 16m
$471
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Sat 11/7
7:09 am-6:34 pm
1 stop9h 25m
Liberia
Sat 11/14
4:56 pm-12:22 pm
2 stops21h 26m
$499
Quickest round-trip
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Fri 9/25
11:59 pm-12:10 pm
1 stop11h 11m
Liberia
Mon 10/5
1:20 pm-10:21 pm
1 stop10h 01m
$504
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Fri 12/4
7:33 pm-2:10 pm
2 stops16h 37m
Liberia
Sat 12/12
3:25 pm-10:01 am
2 stops20h 36m
$585
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Fri 9/11
5:10 pm-12:00 pm
2 stops17h 50m
Liberia
Tue 9/15
1:25 pm-12:52 pm
2 stops24h 27m
$585
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Mon 1/11
3:10 pm-1:30 pm
1 stop20h 20m
Liberia
Fri 1/22
3:25 pm-12:39 pm
2 stops23h 14m
$585
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Mon 10/26
5:00 am-3:10 pm
1 stop9h 10m
Liberia
Fri 10/30
11:50 am-11:09 pm
1 stop12h 19m
$586
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Mon 1/4
4:34 pm-7:12 am
1 stop12h 38m
Liberia
Fri 1/15
10:00 am-8:31 pm
1 stop12h 31m
$589
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Mon 9/21
7:00 am-12:10 pm
2 stops28h 10m
Liberia
Fri 9/25
1:20 pm-10:21 pm
1 stop10h 01m
$591
Cheapest one-way
Quickest one-way
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Fri 8/21
11:34 pm-1:38 pm
2 stops13h 04m
$231
Showing 1-10 of 16 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
PDX-LIR
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?
The best time to book flights from Portland to Liberia is 69 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, April is the cheapest month in which you can book a flight from Portland to Liberia (average of $484). Flying from Portland to Liberia in June is currently the most expensive (average of $801). 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?
Airfare is below average for this route at the moment.
Portland to Liberia flights typically cost between $618 and $787 in September.The cheapest round-trip price found within the last 5 days was $466 on United Airlines (Sep 6-Sep 11).
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 August 2, 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.
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.8
Entertainment
7.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.8
Entertainment
7.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.8
Entertainment
7.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Crew
8.5
Boarding
8.1
Overall
7.9
Comfort
7.8
Entertainment
7.0
Food
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
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.
Traveling to a place near Liberia?
Book flights to Liberia if you plan to visit one of these locationsCulebra
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Other flights to Liberia
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Portland and Liberia flights
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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 August 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$344 | Average$644 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$346 | Average$582 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$358 | Average$573 | FlexibilityNo cancel fee | On-time69% |