Title: $145 Cheap Flights to Sierra - Expedia.com ![Paisaje tomado en boca de la sierra, Baja california sur](https://images.trvl-media.com/place/553248635892154522/75ec5d83-46cb-4a82-85f8-f03c3e7a813b.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/553248635892154522/75ec5d83-46cb-4a82-85f8-f03c3e7a813b.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $145 Cheap Flights to Sierra [View $145 flight on Sun, Mar 15, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:SJO,to:FON,departure:3/15/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:144.76&airProductToken=AQoqCigI0rQBEgQxMTAyGLJyIMVrKLTYhwMw0tiHAzhZQABYAXIGWVJaWTE2EgoIARABGAEqAlJaGAEiBAgBEAEoAigDKAQwAQ) [Sierra Travel Guide](https://expedia.com/Sierra.dx553248635892154522)[Hotels in Sierra](https://expedia.com/Sierra-Hotels.d553248635892154522.Travel-Guide-Hotels)[Things to do in Sierra](https://expedia.com/Things-To-Do-In-Sierra.d553248635892154522.Travel-Guide-Activities)[Car Rentals in Sierra](https://expedia.com/Car-Rentals-In-Sierra.d553248635892154522.Car-Rental-Guide)[Sierra Vacation Packages](https://expedia.com/Sierra.d553248635892154522.Destination-Travel-Guides) ## Popular airlines to Sierra - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sierra, Guanacaste, Costa Rica,departure:3/11/2026TANYT&leg2=from:Sierra, Guanacaste, Costa Rica,to:CMH,departure:3/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sierra, Guanacaste, Costa Rica,departure:3/11/2026TANYT&leg2=from:Sierra, Guanacaste, Costa Rica,to:CMH,departure:3/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sierra, Guanacaste, Costa Rica,departure:3/11/2026TANYT&leg2=from:Sierra, Guanacaste, Costa Rica,to:CMH,departure:3/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sierra, Guanacaste, Costa Rica,departure:3/11/2026TANYT&leg2=from:Sierra, Guanacaste, Costa Rica,to:CMH,departure:3/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sierra, Guanacaste, Costa Rica,departure:3/11/2026TANYT&leg2=from:Sierra, Guanacaste, Costa Rica,to:CMH,departure:3/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sierra, Guanacaste, Costa Rica,departure:3/11/2026TANYT&leg2=from:Sierra, Guanacaste, Costa Rica,to:CMH,departure:3/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sierra, Guanacaste, Costa Rica,departure:3/11/2026TANYT&leg2=from:Sierra, Guanacaste, Costa Rica,to:CMH,departure:3/18/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## How much is the cheapest flight to Sierra? Prices were available within the past 7 days and start at $145 for one-way flights and $265 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![World Ticket Ltd](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/w1.gif) Thu, Mar 19 - Tue, Mar 24 SJO San José FON La Fortuna $265 Roundtrip found 7 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SJO,to:FON,departure:3/19/2026TANYT&leg2=from:FON,to:SJO,departure:3/24/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:264.84&airProductToken=AQohCh8I12ISBDMxMDIYsnIgxWsor4WIAzDNhYgDOFlAAFgBCiEKHwjXYhIEMzIyOBjFayCyciiZwIgDMLfAiAM4WUAAWAESCggBEAEYASoCVzIYASIECAEQASgEMAE) ![World Ticket Ltd](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/w1.gif) Sun, Mar 15 - Tue, Mar 17 SJO San José FON La Fortuna $266 Roundtrip found 1 hour ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SJO,to:FON,departure:3/15/2026TANYT&leg2=from:FON,to:SJO,departure:3/17/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:265.74&airProductToken=AQo1CjMI12ISBDMxMDIYsnIgxWsor9iHAzDN2IcDOFlAAFgBcgZZUlpZMTZ6CgjStAESBDMxMDIKTQpLCNdiEgQzMTAyGMVrILJyKJfvhwMwnvCHAzhZQABYAXIGWVJaWTE2egoI0rQBEgQzMTAyegoI0rQBEgQzMTAyegoI0rQBEgQzMTAyEgoIARABGAEqAlcyGAEiBAgBEAEoAigDKAQwAQ) ![SANSA](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/rz.gif) Sat, Feb 28 - Mon, Mar 2 SJO San José FON La Fortuna $290 Roundtrip found 5 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SJO,to:FON,departure:2/28/2026TANYT&leg2=from:FON,to:SJO,departure:3/2/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:289.52&airProductToken=AQoqCigI0rQBEgQxMTAyGLJyIMVrKNSvhgMw8q-GAzhZQABYAXIGWVJaWTE2EgoIARABGAEqAlJaGAEiBAgBEAEoAigDKAQwAQ) ![SANSA](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/rz.gif) Sun, Mar 15 - Tue, Mar 17 SJO San José FON La Fortuna $291 Roundtrip found 1 hour ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SJO,to:FON,departure:3/15/2026TANYT&leg2=from:FON,to:SJO,departure:3/17/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:290.62&airProductToken=AQoqCigI0rQBEgQxMTA0GLJyIMVrKNbahwMw_tqHAzhZQABYAXIGWVJaWTE2CioKKAjStAESBDExMDQYxWsgsnIow_GHAzDU8ocDOFlAAFgBcgZZUlpZMTYSCggBEAEYASoCUloYASIECAEQASgCKAMoBDAB) ![SANSA](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/rz.gif) Sun, Mar 15 - Tue, Mar 17 SJO San José FON La Fortuna $293 Roundtrip found 1 hour ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:SJO,to:FON,departure:3/15/2026TANYT&leg2=from:FON,to:SJO,departure:3/17/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:292.18&airProductToken=AQoqCigI0rQBEgQxMTA0GLJyIMVrKNbahwMw_tqHAzhZQABYAXIGWVJaWTE2ClQKKAjStAESBDExMDQYxWsgl3wow_GHAzCs8ocDOFlAAFgBcgZZUlpZMTYKKAjStAESBDEwMTUYl3wgsnIogPqHAzCe-ocDOFlAAVgBcgZZUlpZMTYSCggBEAEYASoCUloYASIECAEQASgCKAMoBDAB) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.com/deals?rfrr=FTG_SPRING_PROMO_) ## Frequently asked questions ### What month is the cheapest to fly to Sierra? ### Which US cities fly direct to Sierra? > - Houston > - Los Angeles > - Miami > - Atlanta > - Denver ### How to find a cheap flight to Sierra? ### How to get a cheap last-minute flight to Sierra? ### How far in advance should I book a flight to Sierra? ### Which day of the week is the cheapest day to buy a plane ticket to Sierra? ### Which airlines fly to Sierra? > - Copa Airlines > - SANSA Regional > - GetJet Airlines > - AVIANCA ### Where do you fly into Sierra? ### How far is the airport from central Sierra? ### Can I save money by booking a Sierra trip package? ### Can I change or cancel my flight to Sierra? \*Flight schedules are subject to change. ## Book with confidence # Tips to find the cheapest flights to Sierra **The cheapest day to fly** Get started finding a cheap flight to Sierra on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you. **The cheapest month to fly** March is the cheapest month to fly to Sierra. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Sierra. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute. **The most affordable time to book a flight** Typically, a Sunday can be the cheapest time to book a flight to Sierra, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation. **The cheapest round-trip tickets to Sierra** The lowest price for round-trip flights to Sierra in 2026 starts from from $265, while one-way tickets start from from $145\. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Sierra. If you have a preferred departure time or airline, you can use the handy filters to customize your search. **The cheapest airlines flying to Sierra** SANSA, World Ticket Ltd are just some of the airlines that can typically offer cheap tickets to Sierra. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Sierra and countless more destinations worldwide. **The most affordable airports to fly into** To view the cheapest airports to fly into for Sierra, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Sierra. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia. **Save with a package** With Expedia's amazing [package deals](https://www.expedia.com/package-deals), you could save hundreds of dollars by booking your Sierra plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving. **Date flexibility for the cheapest flights to Sierra** If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Sierra. **Stopover savings** The cheapest tickets to Sierra are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Sierra. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved. **Get Expedia's Price Drop Protection** Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference\*. This gives you peace of mind that you're getting one of the cheapest flights to Sierra for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members. \*Terms apply. **Use our Price Tracking feature** Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Sierra. Simply download the free Expedia app to your smart device and activate Sierra flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices. **Book with Expedia** As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Sierra. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too. Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages. ## Travel information | Destination airport | Arenal | | ----------------------------- | ---------- | | Destination airport IATA code | FON | | Destination city name | La Fortuna | | Roundtrip price | $265 | ## Explore a world of travel with Expedia - Lodging - Flights - Packages - [Hotels near Ecomuseo de las Minas de Abangares ](https://www.expedia.com/Ecomuseo-De-Las-Minas-De-Abangares-Hotels.0-l553248621532964839-0.Travel-Guide-Filter-Hotels) - [Cantón Abangares Hotels ](https://www.expedia.com/Destinations-In-Canton-Abangares.d553248635975751781.Hotel-Destinations) - [Las Juntas Hotels ](https://www.expedia.com/Las-Juntas-Hotels.d828882205513969664.Travel-Guide-Hotels) - [Motels in Las Juntas ](https://www.expedia.com/Las-Juntas-Motels.d828882205513969664-aaMotels.Travel-Guide-Accommodation) - [Flights to San Juan ](https://www.expedia.com/Cheap-Flights-To-San-Juan.d828907900423372800.Travel-Guide-Flights) - [Ecomuseo de las Minas de Abangares ](https://www.expedia.com/Ecomuseo-De-Las-Minas-De-Abangares-Las-Juntas.d553248621532964839.Vacation-Attraction) \*Available to One Key members.