International route
Cheap flights from Denver to Liberia
Denver International Airport (DEN) to Daniel Oduber Quirós International Airport (LIR). 2,337 miles, 5h 5m nonstop.
DEN to LIR at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 2,337 milesgreat-circle
- Typical flight time
- 5h 5mnonstop, gate to gate
- Nonstop airlines
- UAF92 airlinesUnited, Frontier
- Nonstop flights per day
- 2all airlines combined
- Cheapest month
- October 2026over the next six months
- Best day to fly
- Tuesday18% less than Friday
- Time difference
- Same time zone
Denver to Liberia
Round trips from $189
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Oct 13.
Cheapest month: October 2026
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppDenver to Liberia fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Denver to Liberia
2 airlines fly nonstop with 2 departures a day combined, plus 11 more with one stop.
- F9Frontier AirlinesLow-costNonstop · 1 flight a day · first checked bag from $55
- UAUnited AirlinesStar AllianceNonstop · 1 flight a day · first checked bag from $40
- AMAeroméxicoSkyTeamConnecting via MEX, MTY · first checked bag from $40
- ACAir CanadaStar AllianceConnecting via YYZ · first checked bag from $35
- ASAlaska AirlinesoneworldConnecting via SAN · first checked bag from $35
- AAAmerican AirlinesoneworldConnecting via MIA, PHL · first checked bag from $40
- AVAviancaStar AllianceConnecting via SAL · first checked bag from $45
- CMCopa AirlinesStar AllianceConnecting via PTY · first checked bag from $40
- DLDelta Air LinesSkyTeamConnecting via MSP · first checked bag from $35
- WNSouthwest AirlinesLow-costConnecting via PHX, SAN · first checked bag from $35
- NKSpirit AirlinesLow-costConnecting via FLL, DFW, ATL, IAH · first checked bag from $55
- VBVivaLow-costConnecting via MTY, MEX, CUN · first checked bag from $45
- Y4VolarisLow-costConnecting via TIJ, CUN · first checked bag from $45
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- San Diego (SAN)WNAS2 airlines
- Mexico City (MEX)AMVB2 airlines
- Monterrey (MTY)AMVB2 airlines
- Cancun (CUN)VBY42 airlines
- Miami (MIA)AA1 airline
Tips for this route
- Only United and Frontier fly this route nonstop, which keeps nonstop fares firm. A one-stop itinerary through SAN or MEX is usually cheaper if you can spare the extra three to five hours.
- October 2026 is the cheapest month to fly over the next six months, with round trips from $189; September 2026 is the most expensive at $220 and up, a difference of $31 per traveler.
- Departing on a Tuesday averages 18% less than a Friday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays.
Ready to compare live fares?
See every airline on DEN–LIR side by side with bags and seat rules spelled out.
Search Denver to LiberiaDenver to Liberia: common questions
How long is the flight from Denver to Liberia?
A nonstop flight from Denver (DEN) to Liberia (LIR) takes about 5h 5m gate to gate, covering 2,337 miles. Connecting itineraries add the layover, typically 2 to 5 hours more in total.
Which airlines fly nonstop from DEN to LIR?
United Airlines and Frontier Airlines operate nonstop flights from Denver (DEN) to Liberia (LIR), with 2 nonstop departures a day between them. One-stop options connect through SAN, MEX and MTY.
What is the cheapest month to fly from Denver to Liberia?
Over the next six months, October 2026 has the lowest round-trip fares from Denver (DEN) to Liberia (LIR), starting at $189 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Denver to Liberia flights?
Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Denver and Liberia?
Liberia is in the same time zone as Denver, so there is no clock change. DEN is on America/Denver time and LIR on America/Costa Rica time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.