$192+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — LIR
Apr 11 — Apr 181
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Liberia with Cheapflights
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”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Liberia
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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 March 12, 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 March 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:00 am
PDX
- LIR
1 stop9h 29m
Alaska Airlines
Tue 8/2510:00 am
LIR
- PDX
1 stop14h 54m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$416
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Mon 4/2010:23 pm
PDX
- LIR
2 stops12h 01m
American Airlines
Tue 5/52:40 pm
LIR
- PDX
2 stops23h 18m
American Airlines
Deal found 3/9![American Airlines logo]()
$421
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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 8/139:30 pm
PDX
- LIR
1 stop18h 59m
Alaska Airlines
Tue 9/110:00 am
LIR
- PDX
1 stop11h 31m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$430
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Sat 4/1811:47 pm
PDX
- LIR
2 stops12h 23m
American Airlines
Sat 5/912:30 pm
LIR
- PDX
1 stop12h 23m
American Airlines
Deal found 3/9![American Airlines logo]()
$435
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:14 pm
PDX
- LIR
2 stops18h 11m
United Airlines
Thu 4/231:20 pm
LIR
- PDX
1 stop10h 38m
United Airlines
Deal found 3/9![United Airlines logo]()
$436
This United Airlines deal was found by Cheapflights users on 3/7. 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 6/36:03 pm
PDX
- LIR
2 stops14h 57m
United Airlines
Wed 6/1011:10 am
LIR
- PDX
1 stop12h 38m
United Airlines
Deal found 3/7![United Airlines logo]()
$442
This American Airlines deal was found by Cheapflights users on 3/7. 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 8/135:42 pm
PDX
- LIR
2 stops19h 03m
American Airlines
Sat 8/292:26 pm
LIR
- PDX
2 stops21h 18m
American Airlines
Deal found 3/7![American Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 3/12. 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 8/109:30 pm
PDX
- LIR
1 stop18h 59m
Alaska Airlines
Thu 8/2710:00 am
LIR
- PDX
1 stop11h 31m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$450
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:34 pm
PDX
- LIR
1 stop12h 03m
Alaska Airlines
Wed 8/126:39 pm
LIR
- PDX
1 stop15h 45m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$451
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 4/167:05 pm
PDX
- LIR
2 stops18h 20m
United Airlines
Thu 4/303:27 pm
LIR
- PDX
2 stops19h 11m
United Airlines
Deal found 3/10![United Airlines logo]()
$455
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 March 12, 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 March 12, 2026.
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:14 pm
PDX
- LIR
2 stops18h 11m
United Airlines
Thu 4/231:20 pm
LIR
- PDX
1 stop10h 38m
United Airlines
Deal found 3/9![United Airlines logo]()
$436
This American Airlines deal was found by Cheapflights users on 3/7. 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 5/1411:40 pm
PDX
- LIR
1 stop13h 00m
American Airlines
Fri 5/222:19 pm
LIR
- PDX
1 stop11h 31m
American Airlines
Deal found 3/7![American Airlines logo]()
$476
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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.
Tue 4/143:36 pm
PDX
- LIR
2 stops13h 44m
Alaska Airlines
Tue 4/216:12 pm
LIR
- PDX
2 stops20h 35m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$488
This United Airlines deal was found by Cheapflights users on 3/7. 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 5/145:00 am
PDX
- LIR
1 stop9h 19m
United Airlines
Fri 5/223:27 pm
LIR
- PDX
2 stops19h 20m
United Airlines
Deal found 3/7![United Airlines logo]()
$479
This American Airlines deal was found by Cheapflights users on 3/7. 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 6/310:59 pm
PDX
- LIR
2 stops13h 42m
American Airlines
Wed 6/102:45 pm
LIR
- PDX
2 stops20h 14m
American Airlines
Deal found 3/7![American Airlines logo]()
$484
This Alaska Airlines deal was found by Cheapflights users on 3/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:49 pm
PDX
- LIR
1 stop11h 31m
Alaska Airlines
Sat 5/25:09 pm
LIR
- PDX
1 stop17h 21m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$498
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/810:31 am
PDX
- LIR
1 stop29h 31m
Alaska Airlines
Thu 4/167:40 am
LIR
- PDX
2 stops16h 53m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/275:00 am
PDX
- LIR
1 stop9h 19m
United Airlines
Thu 4/303:27 pm
LIR
- PDX
2 stops30h 31m
United Airlines
Deal found 3/8![United Airlines logo]()
$531
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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 4/275:49 pm
PDX
- LIR
1 stop11h 31m
Alaska Airlines
Thu 4/3011:20 am
LIR
- PDX
2 stops21h 41m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$521
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:05 pm
PDX
- LIR
2 stops16h 05m
United Airlines
Thu 4/303:27 pm
LIR
- PDX
2 stops19h 11m
United Airlines
Deal found 3/8![United Airlines logo]()
$545
Last-minute flights from Portland to LiberiaDiscover last-minute flight deals from Portland to Liberia. Data last updated March 12, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Liberia. Data last updated March 12, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/85:49 pm
PDX
- LIR
1 stop22h 13m
Alaska Airlines
Thu 4/166:12 pm
LIR
- PDX
1 stop16h 23m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$480
This Expedia deal was found by Cheapflights users on 3/7. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1410:31 am
PDX
- LIR
1 stop18h 49m
Alaska Airlines
Tue 4/216:12 pm
LIR
- PDX
1 stop16h 26m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$416
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 4/167:05 pm
PDX
- LIR
2 stops18h 20m
United Airlines
Thu 4/303:27 pm
LIR
- PDX
2 stops19h 11m
United Airlines
Deal found 3/10![United Airlines logo]()
$455
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Sat 4/1810:28 pm
PDX
- LIR
1 stop11h 56m
American Airlines
Sat 5/912:30 pm
LIR
- PDX
1 stop12h 23m
American Airlines
Deal found 3/9![American Airlines logo]()
$430
This United Airlines deal was found by Cheapflights users on 3/12. 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 4/187:15 am
PDX
- LIR
1 stop10h 04m
United Airlines
Sat 5/91:20 pm
LIR
- PDX
1 stop10h 39m
United Airlines
Deal found 3/12![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:14 pm
PDX
- LIR
2 stops18h 11m
United Airlines
Thu 4/231:20 pm
LIR
- PDX
1 stop10h 38m
United Airlines
Deal found 3/9![United Airlines logo]()
$436
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Mon 4/2010:23 pm
PDX
- LIR
2 stops12h 01m
American Airlines
Tue 5/52:40 pm
LIR
- PDX
2 stops23h 18m
American Airlines
Deal found 3/9![American Airlines logo]()
$421
This Alaska Airlines deal was found by Cheapflights users on 3/12. 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 4/202:37 pm
PDX
- LIR
1 stop14h 43m
Alaska Airlines
Sat 5/25:09 pm
LIR
- PDX
1 stop17h 21m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$450
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 March 12, 2026.
Search for one-way flight options from Portland to Liberia. Find affordable one-way fares based on user searches. Data last updated March 12, 2026.
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Sat 5/210:23 pm
PDX
- LIR
2 stops13h 47m
American Airlines
Deal found 3/9![American Airlines logo]()
$192
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 5/137:45 pm
PDX
- LIR
2 stops17h 40m
United Airlines
Deal found 3/11![United Airlines logo]()
$202
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 4/237:14 pm
PDX
- LIR
2 stops15h 56m
United Airlines
Deal found 3/10![United Airlines logo]()
$216
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/175:00 am
PDX
- LIR
2 stops24h 20m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$230
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/23:59 pm
PDX
- LIR
3 stops21h 26m
United Airlines
Deal found 3/9![United Airlines logo]()
$261
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/163:59 pm
PDX
- LIR
3 stops21h 26m
United Airlines
Deal found 3/9![United Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:32 pm
PDX
- LIR
3 stops31h 48m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/175:30 am
PDX
- LIR
3 stops29h 40m
United Airlines
Deal found 3/9![United Airlines logo]()
$380
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 March 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $416 (Alaska Airlines) |
One-way from | $192 (American Airlines) |
Popular in | March |
Cheapest in | September |
Average price | $678 |
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 March 12, 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
Sun 4/19
7:14 pm-2:25 pm
2 stops18h 11m
Liberia
Thu 4/23
1:20 pm-10:58 pm
1 stop10h 38m
$436
Quickest round-trip
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Thu 5/14
11:40 pm-1:40 pm
1 stop13h 00m
Liberia
Fri 5/22
2:19 pm-12:50 am
1 stop11h 31m
$476
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Thu 5/14
5:00 am-3:19 pm
1 stop9h 19m
Liberia
Fri 5/22
3:27 pm-9:47 am
2 stops19h 20m
$479
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Wed 6/3
10:59 pm-1:41 pm
2 stops13h 42m
Liberia
Wed 6/10
2:45 pm-9:59 am
2 stops20h 14m
$484
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Tue 4/14
3:36 pm-6:20 am
2 stops13h 44m
Liberia
Tue 4/21
6:12 pm-1:47 pm
2 stops20h 35m
$488
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Wed 4/22
5:49 pm-6:20 am
1 stop11h 31m
Liberia
Sat 5/2
5:09 pm-9:30 am
1 stop17h 21m
$498
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Wed 4/8
10:31 am-5:02 pm
1 stop29h 31m
Liberia
Thu 4/16
7:40 am-11:33 pm
2 stops16h 53m
$512
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Mon 4/27
5:49 pm-6:20 am
1 stop11h 31m
Liberia
Thu 4/30
11:20 am-8:01 am
2 stops21h 41m
$521
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Mon 4/27
5:00 am-3:19 pm
1 stop9h 19m
Liberia
Thu 4/30
3:27 pm-8:58 pm
2 stops30h 31m
$531
PortlandLiberia
PDX - LIR
PDXLIR
Portland
Thu 4/23
7:05 pm-12:10 pm
2 stops16h 05m
Liberia
Thu 4/30
3:27 pm-9:38 am
2 stops19h 11m
$545
Showing 1-10 of 17 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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 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?
Use this chart to determine the optimal time to book a round-trip flight from Portland to Liberia. Price data was last updated on March 6, 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, 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 June is currently the most expensive (average of $398). 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.
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 March 12, 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.
Overall
8.0
Comfort
7.8
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
8.0
Comfort
7.8
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
8.0
Comfort
7.8
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Overall
8.0
Comfort
7.8
Food
7.1
Boarding
8.1
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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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 March 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$344 | Average$545 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$344 | Average$582 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$348 | Average$563 | FlexibilityNo cancel fee | On-time69% |