Cheap Flights from Portland to Liberia

Compare Portland to Liberia flight deals

Find the cheapest month or even day of the year to fly to Liberia

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Flight deals from Portland to Liberia

Looking for a cheap last-minute deal or the best return flight from Portland to Liberia? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Portland to Liberia

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Liberia flights are currently cheapest in May.

Portland to Liberia: Alternative routes

Compare routes from Portland to Liberia below. You may find an airport to fly into that's cheaper, faster, or easier than Liberia.

Portland to Liberia: Flight information

The things to know before you go.
Cheapest flight foundR 2,350
Cheapest month to flyMay

Finding cheap flights from Portland to Liberia: Frequently asked questions

The best price we found for a return flight from Portland to Liberia is R 8,408. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Portland to Liberia. But we found flights with one or more stops from R 8,408.
As of February 2026, there are no flights flying from Portland to Liberia.
The cheapest month to fly from Portland to Liberia is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Liberia Airport on Tuesday, 24 March 2026.
No airlines currently offer direct flights between Portland Airport and Liberia Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Liberia but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Liberia is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Liberia.

Travelling from Portland International Jetport Airport (PWM) to Liberia Airport (LIR): what you need to know

  • Liberia is two hours behind Portland and follows the UTC-6 timezone.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you plenty of time to board your PWM to LIR flight.

  • You'll likely experience bigger queues in popular months such as August. Arriving up to four hours in advance for international flights and two hours for a domestic departure will help ensure a smooth travel experience.

  • Consider adding a stopover when booking your ticket from Portland International Jetport Airport to Liberia Airport. Just deselect 'Direct flights only' to break up your trip, or maybe even explore a new city along the way. Here's where you can stop between PWM and LIR:

    • Baltimore/Wash International Thurgood Marshall Airport

    • Hartsfield-Jackson Atlanta International Airport

    • John F. Kennedy International Airport

How to find the cheapest flights from Portland International Jetport Airport (PWM) to Liberia Airport (LIR)

  • Currently, R 2,350 is the lowest price we've seen for a one-way Portland International Jetport Airport to Liberia Airport flight. The best price for a return plane ticket is R 8,408. Bear in mind that fares could change due to availability at the time of booking.

  • It's a good idea to book early if you want to get cheap tickets from PWM to LIR. That's because airlines change prices based on demand, which tends to increase closer to the date of departure.

  • Getting cheap flights from Portland International Jetport Airport to Liberia Airport is easier if you're flexible with your dates. Use the 'Whole month' search tool to see the lowest prices throughout the month and bag a great deal.

  • Landing cheap flights from PWM to LIR is a cinch with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know when fares go down.

  • Lock in the right flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Portland International Jetport Airport to Liberia Airport, use the 'Sort by' function. You can also filter results by arrival and departure times, airline, and number of stops.

Handy information about Portland International Jetport Airport (PWM)

  • PWM is located at 1001 Westbrook Street.

  • 82.15% of flights leaving Portland International Jetport Airport arrive at their destination on time. Given its reliable on-time performance, you're unlikely to face delays when setting off from PWM.

  • Portland International Jetport Airport is around 8 kilometres from central Portland. If you're catching a cab, ride-sharing or driving from the centre, it'll take 15 minutes or so to arrive, depending on the traffic.

  • Taking public transport? Expect a journey time of around 40 minutes.

  • Searching for a handy hotel near PWM? If you've booked an early flight from Portland International Jetport Airport to Liberia Airport, these stays will put you moments from check-in:

Arriving at Liberia Airport (LIR)

  • If you have a late Portland International Jetport Airport to Liberia Airport flight, nothing beats the convenience of staying near the terminal. Collect your bags from the carousel and then be resting shortly after at one of these accommodation options near LIR:

  • Pick up a Liberia Airport rental car and explore Liberia and beyond with your own set of wheels. Avis, Europcar and NU Car Rentals are leading providers you can book with here.

  • To secure the lowest price, book your vehicle from Liberia Airport about two weeks ahead.

Getting from Liberia Airport (LIR) to central Liberia

  • Liberia Airport to central Liberia has a drive time of about 20 minutes. It's approximately 13 kilometres away.

When to fly to Liberia Airport (LIR)

  • January is the most popular month for flights from Portland International Jetport Airport to Liberia Airport. To avoid the crowds, travel to Liberia in May.

  • When booking your flight from Portland International Jetport Airport to Liberia Airport, think about the kind of weather you enjoy. April is the warmest month in Liberia, with the temperature ranging from 22ºC (72ºF) to 35ºC (95ºF).

  • Search for cheap tickets from PWM to LIR in November if you like cooler conditions. Temperatures are at their lowest then, ranging between 21ºC (70ºF) and 30ºC (86ºF) on average.

Explore more of Costa Rica

  • Liberia has plenty to offer, but there are so many other parts of Costa Rica just waiting to be explored. About 161 kilometres south-east of Liberia, a visit to San Jose will keep you on the move. Start with popular sights like Teatro Nacional Costa Rica, National Park (Parque Nacional) and Plaza de la Cultura.

  • Around 274 kilometres east of Liberia, Limon is another essential stop in Costa Rica. Experience this destination's highlights firsthand at Veragua Rainforest Park, Playa Bonita and Cruise Pier Puerto Limon.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.