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Quito to San Jose, Costa Rica flights in December 2026 from $318 UIO → SJO

Mariscal Sucre International Airport (UIO) → Juan Santamaria International Airport (SJO)

For departures in December 2026, the cheapest one-way found recently is $318 with avianca airlines, 5 Dec, found 5 days ago.

One-way

In December 2026, the cheapest one-way fare on each of 7 departure dates is usually $318 to $321. Across all 8 departure dates we hold on this route, it is usually $318 to $321.

Cheapest one-way found recently

$318

5 Dec · avianca airlines

Mariscal Sucre International Airport (UIO) → Juan Santamaria International Airport (SJO)

1 stop

found 5 days ago

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Cheapest we hold, of any age

$317

1 Dec · avianca airlines

Mariscal Sucre International Airport (UIO) → Juan Santamaria International Airport (SJO)

1 stop

found 6 days ago

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The cheapest dates in December 2026

DatesFromAirlineStopsFound
1 Dec$317avianca airlines1 stopfound 6 days agoOpen this trip
3 Dec$317avianca airlines1 stopfound 6 days agoOpen this trip
5 Dec$318avianca airlines1 stopfound 5 days agoOpen this trip
8 Dec$321avianca airlines1 stopfound 6 days agoOpen this trip
12 Dec$321avianca airlines1 stopfound 5 days agoOpen this trip

Every date we hold

7 departure dates

1 Dec: $317, found 6 days ago3 Dec: $317, found 6 days ago5 Dec: $318, found 5 days ago8 Dec: $321, found 6 days ago12 Dec: $321, found 5 days ago15 Dec: $321, found 5 days ago18 Dec: $337, found 5 days agoDec
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Dec$317avianca airlinesMariscal Sucre International Airport (UIO) → Juan Santamaria International Airport (SJO)1 stopfound 6 days agoOpen this trip
3 Dec$317avianca airlinesMariscal Sucre International Airport (UIO) → Juan Santamaria International Airport (SJO)1 stopfound 6 days agoOpen this trip
5 Dec$318avianca airlinesMariscal Sucre International Airport (UIO) → Juan Santamaria International Airport (SJO)1 stopfound 5 days agoOpen this trip
8 Dec$321avianca airlinesMariscal Sucre International Airport (UIO) → Juan Santamaria International Airport (SJO)1 stopfound 6 days agoOpen this trip
12 Dec$321avianca airlinesMariscal Sucre International Airport (UIO) → Juan Santamaria International Airport (SJO)1 stopfound 5 days agoOpen this trip
15 Dec$321avianca airlinesMariscal Sucre International Airport (UIO) → Juan Santamaria International Airport (SJO)1 stopfound 5 days agoOpen this trip
18 Dec$337Copa AirlinesMariscal Sucre International Airport (UIO) → Juan Santamaria International Airport (SJO)1 stopfound 5 days agoOpen this trip

Which month looks cheapest?

December 2026 is the cheapest month — from $317.

November 2026From $3211 departure date19 Nov · found 6 days agoOpen this trip
December 2026From $317Cheapest seen7 departure dates1 Dec · found 6 days agoOpen this trip

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work