HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Liberia

$181+ Cheap flights from Portland, ME (PWM) 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LIR
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) 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 September 11, 2025.

Round-trip from

$525
(Delta)

One-way from

$181
(Priceline)

Popular in

April

Cheapest in

May
From Portland to Liberia
Search Deals
One-way flight from Portland to Liberia
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).
Search Deals

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 September 11, 2025.

This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:00 amPWM - LIR
1 stop8h 00mDelta
Wed 10/11:25 pmLIR - PWM
1 stop8h 46mDelta
Deal found 9/9$525
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Mon 11/177:22 pmPWM - LIR
2 stops18h 48mUnited Airlines
Sat 12/68:35 amLIR - PWM
2 stops12h 25mUnited Airlines
Deal found 9/9$549
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/186:00 amPWM - LIR
1 stop8h 00mDelta
Sat 10/251:25 pmLIR - PWM
2 stops22h 33mDelta
Deal found 9/9$849
This American Airlines deal was found by Cheapflights users on 9/9. 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 11/215:43 amPWM - LIR
2 stops9h 30mAmerican Airlines
Sun 11/303:13 pmLIR - PWM
2 stops24h 24mAmerican Airlines
Deal found 9/9$1,847

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 September 11, 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

PWM - LIR

PWMLIR

Portland

Tue 9/30

6:00 am-12:00 pm

1 stop8h 00m

Liberia

Wed 10/1

1:25 pm-12:11 am

1 stop8h 46m

$525

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Sat 1/10

4:50 pm-12:15 pm

2 stops20h 25m

Liberia

Sat 1/17

1:50 pm-12:05 pm

2 stops21h 15m

$549

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Mon 11/17

7:22 pm-1:10 pm

2 stops18h 48m

Liberia

Sat 12/6

8:35 am-10:00 pm

2 stops12h 25m

$549

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Sat 10/18

7:09 am-12:45 pm

1 stop7h 36m

$181

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Sat 10/18

5:12 pm-11:45 am

2 stops20h 33m

$247

PortlandLiberia

PWM - LIR

PWMLIR

Portland

Sat 10/18

7:37 pm-12:50 pm

3 stops43h 13m

$344

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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

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

Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Liberia (average of $496). Flying from Portland, Maine to Liberia in March is currently the most expensive (average of $710). 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 September 11, 2025.
Read reviews from past customers who have flown Delta and American Airlines from Portland to Liberia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection 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, Maine to Liberia?

    There are many flights that can get you from Portland, Maine to Liberia in 8h. Fly via Delta or American Airlines to get the fastest option. There are 2458 mi between Portland, Maine and Liberia. This flight may include one or multiple stops.

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

    American Airlines, at $542, was found to be the cheapest airline from Portland, Maine to Liberia. An alternate airline flying to your destination would be Delta. Users have found that American Airlines is 29% cheaper than the other options available to this destination.

  • 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, Maine to Liberia?

    Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Liberia (average of $496). Flying from Portland, Maine to Liberia in March is currently the most expensive (average of $710). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Liberia

See prices for flight routes from nearby airports that may be better suited for you.
Boston to San José flights
Boston to Liberia flights
Portland to San José flights

Top 2 airlines flying from Portland to Liberia

Discover the top 2 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$542Average$768FlexibilityNo cancel feeOn-time71%
DeltaCheapest$562Average$776FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.