Cheap Flights from Denver International (DEN) to Liberia (LIR)

Compare Denver International 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 Denver International Airport to Liberia Airport

Looking for a cheap last-minute deal or the best return flight from Denver International Airport to Liberia Airport? If you want to travel next month, return fares start from £344. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Denver International to Liberia

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

Direct flights from Denver International to Liberia

Denver International to Liberia: Alternative routes

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

Denver to Liberia: Flight information

The things to know before you go.
Cheapest flight found£120
Cheapest month to flyApril
Average flight time5 hrs, 3 mins
Most popular airlineUnited
Average flights per week9

Finding cheap flights from Denver International to Liberia: Frequently asked questions

The best price we found for a return flight from Denver International to Liberia is £334. 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.
5 hours and 3 minutes is the average flight time from Denver International to Liberia.
United and Southwest Airlines fly direct from Denver International to Liberia.
As of March 2026, there are 9 flights per week flying from Denver International to Liberia.
The cheapest month to fly from Denver International to Liberia is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to Liberia Airport on Monday, 11 May 2026.
Yes – the average flight time is 5 hours and 3 minutes.
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.
Currently, United offers the cheapest flight tickets to Liberia.

Travelling from Denver International Airport (DEN) to Liberia Airport (LIR): what you need to know

  • The average length of a direct flight from Denver International Airport to Liberia Airport is 5 hours 5 minutes.

  • Denver and Liberia are in the same timezone, UTC-6.

  • You can choose from 19 weekly Denver International Airport to Liberia Airport flights. The 08:00 departure with Southwest Airlines is the earliest you can take. United Airlines operates the latest service of the day at 10:21.

  • Your DEN to LIR flight won't wait if you're late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • During popular months like July, it's a good idea to get to the airport earlier than normal. Arrive two hours before a domestic departure and four hours ahead of an international flight when you fly during a peak period in general.

  • United Airlines is your gateway to discovering Liberia (and perhaps some other great corners of Costa Rica!). Browse the direct flights from Denver International Airport to Liberia Airport offered by this carrier.

  • United Airlines has the highest passenger demand on this route.

  • The most punctual carrier offering DEN to LIR flights is United Airlines. Its services land without delay 75.41% of the time.

  • Consider adding a stopover when booking your ticket from Denver International Airport to Liberia Airport. Just deselect 'Direct flights only' to break up your trip, or perhaps explore a new destination along the way. Here are some options between DEN and LIR:

    • William P. Hobby Airport

    • George Bush Intercontinental Airport

    • Dallas/Fort Worth International Airport

How to find the cheapest flights from Denver International Airport (DEN) to Liberia Airport (LIR)

  • The cheapest price we've seen for a one-way Denver International Airport to Liberia Airport flight is £120. A round-trip plane ticket right now is £334. Depending on the availability and when you book, these fares could change.

  • Get cheap tickets from DEN to LIR by booking at least nine months ahead. Based on our research, that's the sweet spot for finding a bargain.

  • The cheapest month for flights from Denver International Airport to Liberia Airport is August. Use the 'Whole month' tool to find the lowest prices if you have flexible travel dates.

  • There's no need to check back in every day to find out if fares have dropped when you create a Price Alert. We'll send you an update as soon as there's a change in price on cheap flights from DEN to LIR.

  • Secure the perfect flight for you with the help of the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Denver International Airport to Liberia Airport, use the 'Sort by' function. You can also filter by arrival and departure times, airline, and journey duration.

Handy information about Denver International Airport (DEN)

  • DEN's address is 8500 Pena Boulevard.

  • Denver International Airport has a strong on-time performance, reducing the likelihood of delays. Departures from DEN touch down on schedule 80.23% of the time.

  • To reach Denver International Airport from central Denver, it takes about 35 minutes if you're travelling by car. This depends on traffic, however. It's approximately 25 miles from the airport to the city centre.

  • Expect a journey time of roughly 1 hour 30 minutes when using public transport.

  • Get your flight from Denver International Airport to Liberia Airport off to an easy start. Just a short drive from DEN, stay at Baymont by Wyndham Denver International Airport and be well-rested for the trip ahead.

Arriving at Liberia Airport (LIR)

Getting from Liberia Airport (LIR) to central Liberia

  • Liberia Airport is approximately 8 miles from the centre of Liberia. Driving there takes about 20 minutes.

When to fly to Liberia Airport (LIR)

  • January is the most popular month for flights from Denver International Airport to Liberia Airport. For smaller crowds, head to Liberia in May.

  • When booking your flight from Denver International Airport to Liberia Airport, consider the type of weather you like. April is the warmest month in Liberia, with temperatures ranging from 22ºC (72ºF) to 35ºC (95ºF).

  • If you'd rather travel in cooler conditions, look for a cheap ticket from DEN to LIR in November. Average temperatures are between 21ºC (70ºF) and 30ºC (86ºF) then.

Explore more of Costa Rica

  • You've done Liberia, now it's time to explore more of Costa Rica. Journey about 100 miles south-east to San Jose to check off its leading attractions. From Teatro Nacional Costa Rica to National Park (Parque Nacional) and Plaza de la Cultura, you'll have a full itinerary ahead.

  • If you're ready to explore another great destination in Costa Rica, head for Limon, roughly 170 miles east of Liberia. Veragua Rainforest Park, Playa Bonita and Cruise Pier Puerto Limon are among its highlights.

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