Direct (nonstop) flights from Denver to Guanacaste
2 airlines fly nonstop from Denver International (DEN) to Daniel Oduber Quiros International (LIR). It's 2,331 miles (3,752 km), about 5h 8m in the air. Operated by United Airlines, Southwest Airlines.
United Airlines
Southwest Airlines
Route data last updated: May 21, 2026
Airlines with non-stop flights
UA
United Airlines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Denver to Guanacaste with one stop · direct emits 394 kg CO₂ per passenger
Looking for the return flight?
LIR → DEN: Flights from Guanacaste to DenverOther direct flights from Denver
Direct flights from Guanacaste (LIR)
Frequently Asked Questions
How long is the direct flight from Denver to Guanacaste?
A nonstop flight from Denver (DEN) to Guanacaste (LIR) takes approximately 5 hours and 8 minutes. The distance is 2,331 miles (3,752 km).
Which airlines fly nonstop from Denver to Guanacaste?
2 airlines: United Airlines, Southwest Airlines.
Is there a nonstop flight from Denver to Guanacaste?
Yes. 2 airlines: United Airlines, Southwest Airlines.
How far is Denver from Guanacaste?
The flight distance from Denver to Guanacaste is 2,331 miles (3,752 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Los Angeles.
What type of aircraft flies from Denver to Guanacaste?
At 5h 8m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
Do I need a visa to travel from USA to Costa Rica?
Depends on your passport. Check with the Costa Rica embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Denver to Guanacaste?
Roughly 394 kg CO2 per passenger one-way. That's about the same as driving 1,970 km.
Is the return flight from Guanacaste to Denver also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Denver to Guanacaste?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Denver International for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.