United States to Costa Rica · 2,337 miles (3,761 km)

Denver (DEN) to Guanacaste (LIR) flights

Air Canada Aeroplan logo
12,500 milesCheapest economy award, one way, with Air Canada Aeroplan

An economy award from Denver (DEN) to Guanacaste (LIR) starts at 12,500 miles one way with Air Canada Aeroplan on United Airlines, plus taxes and fees from $71.61. 2 airlines fly nonstop from Denver (DEN) to Guanacaste (LIR): Southwest Airlines and United Airlines. The two airports are 2,337 miles (3,761 km) apart. United Airlines is in Star Alliance. There are also 26 ways to fly it with one stop, through Houston, Houston and Dallas and more.

How many miles DEN to LIR costs

Economy, one way, on the nonstop flights, from the Award Flight Pricer's award charts. Ranges run off-peak to peak; "from" is the floor of a dynamic price.

ProgramEconomyTaxes and fees
Air Canada AeroplanOn United Airlines12,500$71.61–80.61
Avianca LifeMilesOn United Airlines17,500$54
Singapore Airlines KrisFlyerOn United Airlines20,500$5.60
Emirates SkywardsOn United Airlines22,000$5.60–355.60
EVA Air Infinity MileageLandsOn United Airlines25,000$5.60
ANA Mileage ClubOn United Airlines30,000$5.60
Thai Royal Orchid PlusOn United Airlines35,000$5.60
TAP Miles&GoOn United Airlines55,000$50.40
Turkish Airlines Miles&SmilesOn United Airlines90,000$5.60

Business and first class prices are in the Award Flight Pricer. Chart prices need award space on your date, so search it before you transfer points.

Compare every program in the Award Flight Pricer

Airlines flying nonstop from DEN to LIR

Book DEN to LIR with points

Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.

DEN to LIR with one stop

26 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.

  • Via Houston (HOU)Southwest Airlines the whole way
    Southwest Airlines logo
    Southwest Airlines logo
  • Via Houston (IAH)United Airlines the whole way
    Frontier Airlines logo
    United Airlines logo
    United Airlines logo
  • Via Dallas (DFW)American Airlines the whole way
    American Airlines logo
    Frontier Airlines logo
    United Airlines logo
    American Airlines logo
  • Via San Jose (SJO)United Airlines and Southwest Airlines, then SANSA and Edelweiss Air
    United Airlines logo
    Southwest Airlines logo
    RZ
    Edelweiss Air logo
  • Via Nashville (BNA)Southwest Airlines the whole way
    Frontier Airlines logo
    United Airlines logo
    Southwest Airlines logo
    Southwest Airlines logo
  • Via Atlanta (ATL)Delta Air Lines the whole way
    Delta Air Lines logo
    Frontier Airlines logo
    United Airlines logo
    +1
    Delta Air Lines logo
  • Via Miami (MIA)American Airlines the whole way
    American Airlines logo
    Frontier Airlines logo
    United Airlines logo
    +1
    American Airlines logo
  • Via Fort Lauderdale (FLL)United Airlines, Southwest Airlines and 1 more, then JetBlue Airways
    United Airlines logo
    Southwest Airlines logo
    Frontier Airlines logo
    JetBlue Airways logo
  • Via Chicago (ORD)American Airlines and United Airlines the whole way
    American Airlines logo
    Frontier Airlines logo
    United Airlines logo
    United Airlines logo
    American Airlines logo
  • Via Charlotte (CLT)American Airlines the whole way
    American Airlines logo
    Frontier Airlines logo
    United Airlines logo
    +1
    American Airlines logo
  • Via Minneapolis (MSP)Delta Air Lines and Sun Country Airlines the whole way
    Delta Air Lines logo
    Frontier Airlines logo
    Sun Country Airlines logo
    +2
    Delta Air Lines logo
    Sun Country Airlines logo
  • Via Detroit (DTW)Delta Air Lines the whole way
    Delta Air Lines logo
    Frontier Airlines logo
    United Airlines logo
    +1
    Delta Air Lines logo
  • Via Dulles (IAD)United Airlines the whole way
    United Airlines logo
    United Airlines logo
  • Via Los Angeles (LAX)United Airlines the whole way
    American Airlines logo
    Delta Air Lines logo
    Frontier Airlines logo
    +2
    Alaska Airlines logo
    United Airlines logo
  • Via Baltimore (BWI)Southwest Airlines the whole way
    United Airlines logo
    Southwest Airlines logo
    Southwest Airlines logo
See all 26 in Routes

DEN to LIR: common questions

How many miles does DEN to LIR cost?

In economy it starts at 12,500 miles one way with Air Canada Aeroplan on United Airlines, plus taxes and fees from $71.61. Next cheapest: Avianca LifeMiles (17,500), Singapore Airlines KrisFlyer (20,500) and Emirates Skywards (22,000). These are award chart prices from the Award Flight Pricer. Programs that price dynamically can cost more on busy dates, so check yours before you transfer points. Business and first class prices are in the pricer too.

Which airlines fly nonstop from DEN to LIR?

Southwest Airlines and United Airlines (Star Alliance) fly nonstop from Denver (DEN) to Guanacaste (LIR).

How far is Denver from Guanacaste by plane?

Denver (DEN) and Guanacaste (LIR) are 2,337 miles (3,761 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.

Which points programs can book DEN to LIR award flights?

13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, JetBlue TrueBlue, Lufthansa Miles & More and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.

Where can I connect between Denver and Guanacaste?

The most direct connections are through Houston (HOU), Houston (IAH), Dallas (DFW), San Jose (SJO) and Nashville (BNA). On 23 of them the same airline flies both flights, for example Southwest Airlines through Houston.

More routes

Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.