{ "response": { "Key": "CHI-SJO", "orig": { "code": "CHI", "type": "airport", "city": "Chicago", "fullCity": "Chicago, Illinois", "airport": "Dupage County" }, "dest": { "code": "SJO", "type": "airport", "city": "San José", "fullCity": "San José, Costa Rica", "airport": "Juan Santamaría Intl Airport" }, "faq": { "q0": { "question": "What is the typical flight duration from Chicago to San José?", "answer": "A nonstop flight from Chicago (ORD) to San José (SJO) typically takes about 5 hours 30 minutes to 5 hours 45 minutes. With one stop, depending on the layover city, total travel time often ranges from 7 to 9 hours. The return flight is usually similar, often around 5 hours 10 minutes nonstop." }, "q1": { "question": "Are there any direct flights from Chicago to San José?", "answer": "Yes, American Airlines and United Airlines both fly nonstop from Chicago O'Hare (ORD) to San José (SJO). American runs three daily flights (21 per week), while United operates one daily flight (8 per week), so service is available every day of the week on both carriers.", "methodology": "Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours.", "toolsUsed": [ "route_airlines" ] }, "q2": { "question": "Are there visa requirements to travel from Chicago to San José?", "answer": "Yes — visa requirements depend on your nationality. For the Chicago to San José leg: U.S. citizens do not need a visa for tourist stays up to 90 days, but must have a valid passport and proof of onward travel. Costa Rican citizens need a valid U.S. visa or ESTA authorization to enter the United States. For the return San José to Chicago leg: U.S. citizens re-entering the U.S. need only a valid passport; Costa Rican citizens must hold a valid U.S. visa or ESTA approval. Other nationalities should check both Costa Rican and U.S. entry rules." }, "q4": { "question": "When is the cheapest time to fly from Chicago to San José?", "answer": "The cheapest months to fly from Chicago to San José are April and May, with average fares around $509–$518, while October and February also offer lower prices. The most expensive month is December, averaging $733, followed by July and March. Spring and early fall are the most affordable seasons, while winter holidays and mid-summer see the highest fares.", "methodology": "This 'good deal' estimate shows a representative best price for each departure date across roughly a 12-month window (about 3 months back and 9 months forward). It is built from real flight prices found by Priceline users searching this route, accumulated into a price history for each departure date. Rather than weighting all of that history equally, we apply exponential time decay so recent prices dominate — a price seen yesterday counts almost in full, one from about a month ago roughly a third, and prices from a few months back very little — giving a figure that tracks today's market instead of a stale long-run average. Clear price outliers are removed before any calculation, departure dates with no observations are filled in from nearby dates, and the resulting curve is lightly smoothed so it reads as a clean seasonal trend rather than day-to-day noise.", "toolsUsed": [ "seasonal_prices" ] }, "q5": { "question": "How far in advance should I book tickets from Chicago to San José?", "answer": "For Chicago to San José, the best fares appear when booking 4–6 weeks ahead, averaging around $571, with the absolute lowest price at $566 about 30 days out. Prices climb noticeably for last‑minute bookings and for tickets purchased more than 5 months in advance, and while summer or holiday periods aren't explicitly broken out here, the typical pattern of higher demand suggests aiming for the same 4–6 week window but booking a bit earlier if you're traveling during peak dates.", "methodology": "This booking-window guidance is built from the same real flight prices found by Priceline users searching this route, re-grouped by how many days before departure each price was seen (from the departure day out to about 180 days ahead) across the route's price history. At each booking lead time we report the 25th-percentile price — the cheaper end of what travelers were quoted, rather than the rock-bottom minimum (which can be a fluke) or the average (which is pulled up by expensive last-minute fares). The buy-or-wait advice then applies a risk premium that grows as departure approaches, since seat availability shrinks and prices become less predictable; using that adjusted curve we flag windows where waiting is likely to save a meaningful amount (at least $20 or 5%) versus windows where booking now is the better call. Isolated single-day recommendations are filtered out, so the advice only reflects a window that holds for several days in a row.", "toolsUsed": [ "booking_timing" ] }, "q6": { "question": "Are overnight (red‑eye) flights available from Chicago to San José?", "answer": "No nonstop red-eye flights operate from Chicago to San José, but a connecting overnight itinerary is available: Avianca departs Chicago O'Hare at 11:20 PM, arriving in Bogotá at 5:30 AM (early hours), then connects to San José after a 2-hour layover.", "methodology": "Red-eye flights are identified from scheduled local departure and arrival times in our flight-schedule database — built from published airline timetables and official schedule data, including U.S. Department of Transportation records for domestic routes — flagging services that depart late at night and arrive the following morning; for connecting itineraries the red-eye is based on the timing of the overnight long-haul leg.", "toolsUsed": [ "redeye_flights" ] }, "q7": { "question": "Which airlines usually operate this route from Chicago to San José?", "answer": "American Airlines and United Airlines operate nonstop flights from Chicago O'Hare to San José, Costa Rica. American runs 21 weekly flights with multiple daily departures, while United offers 8 weekly flights. Median fares for these carriers aren't provided in the current data, but both airlines serve the route daily.", "methodology": "Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours.", "toolsUsed": [ "route_airlines" ] }, "q8": { "question": "If I need a connection, what are common layover cities between Chicago and San José?", "answer": "Common layover cities include Miami, Houston, Atlanta, and Dallas, which offer broad connections and efficient transfers while keeping total travel time competitive. These U.S. hubs provide frequent flights and streamlined domestic-to-international connections without requiring additional visas for U.S. citizens." }, "q9": { "question": "How reliable are on‑time departures on this route from Chicago to San José?", "answer": "Departures are generally reliable, though Chicago's weather can cause delays year‑round. Early morning flights, particularly on United or American, tend to have the best on‑time performance." }, "q10": { "question": "Which months have the best weather for traveling to San José?", "answer": "December to April is the dry season with sunny days and lower humidity, ideal for avoiding the heavy rains and crowds of other months." }, "q11": { "question": "What documents should I bring with me to the airport when flying from Chicago to San José?", "answer": "Bring a passport valid for at least three months beyond your stay, proof of onward or return travel, a payment method for bags, and a yellow fever vaccination certificate if arriving from a risk area." }, "q12": { "question": "Which airport should I use in San José?", "answer": "San José has one main airport, Juan Santamaría International Airport, located about 20 minutes from downtown San José and serving most international and domestic flights." }, "q14": { "question": "Are there hotels or sleeping facilities at San José airport?", "answer": "San José Airport (SJO) does not have on-site hotels, capsule hotels, or sleeping pods inside the terminal. Nearby hotels like the Courtyard by Marriott San José Airport Alajuela and Holiday Inn Express San José Airport are connected by free shuttle, typically a 5-10 minute ride.", "toolsUsed": [], "references": [ { "url": "https://en.wikipedia.org/wiki/SOJ", "title": "SOJ", "time_published": "2026-06-09T08:31:45Z" }, { "url": "https://www.sleepinginairports.net/guides/oslo-gardermoen-airport-guide.htm", "title": "Oslo Gardermoen Airport Guide (OSL) - Sleeping in Airports", "time_published": "2026-04-13T18:02:52Z" }, { "url": "https://en.wikipedia.org/wiki/Stavanger_Airport", "title": "Stavanger Airport", "time_published": "2026-07-06T11:27:02Z" }, { "url": "http://www.sleepinginairports.net/europe/istanbul_sabiha.htm", "title": "Istanbul Sabiha Gökçen Airport Guide (SAW) - Sleeping in Airports", "time_published": "2026-02-25T20:28:55Z" }, { "url": "https://activities.marriott.com/north-america/costa-rica/alajuela/activities/private_transfer_sjo_airport_to_caldera_cruise_ferry_fiesta_hotel-XTH550?property=SJORI", "title": "Private Transfer SJO Airport to Caldera Cruise/Ferry/Fiesta Hotel", "time_published": "2026-05-04T00:00:00Z" }, { "url": "http://www.sleepinginairports.net/europe/stavanger.htm", "title": "Stavanger Airport Guide (SVG) - Sleeping in Airports", "time_published": "2026-04-13T17:31:35Z" } ] }, "q17": { "question": "What aircraft are typically used on flights from Chicago to San José?", "answer": "There is no nonstop service from Chicago to San José; most one-stop itineraries use a Boeing 737 MAX 8 on the longer leg, especially via Houston (IAH), Dallas (DFW), Miami (MIA), or Newark (EWR) on United and American. Airbus A321 variants also appear on some connections through Miami or Houston, and a few itineraries route through Panama City (PTY) on Copa's 737 MAX 8 or through Bogotá (BOG) on Avianca's A320neo. The exact aircraft can vary by day and airline, but the 737 MAX 8 is the most common type on this route. Wi-Fi and seatback entertainment are widely available on these mainline jets, though specifics depend on the carrier and aircraft configuration.", "methodology": "Aircraft types are taken from the equipment each operating carrier schedules on this route, drawn from published airline timetables and airline equipment schedules in our flight-schedule database. They describe typical scheduled aircraft and can vary with seasonal or day-of-week assignments and last-minute equipment swaps.", "toolsUsed": [ "route_aircraft" ] }, "q18": { "question": "Which airline alliances serve flights from Chicago to San José?", "answer": "American Airlines (oneworld) and United Airlines (Star Alliance) fly nonstop from Chicago O'Hare to San José, with 21 and 8 weekly flights respectively. Both carriers belong to major alliances, so travelers can earn and redeem miles within oneworld or Star Alliance on this route; no non-alliance carrier operates it nonstop.", "methodology": "Airlines and weekly frequencies are compiled from our flight-schedule database, which combines published airline timetables, U.S. government schedule data from the Bureau of Transportation Statistics (BTS), and observed flight operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We count each operating carrier's scheduled weekly departures and the days it flies; where there is no nonstop service, connecting carriers are identified by linking scheduled nonstop segments through common hub airports. Where a median fare is shown for a carrier, it reflects the real fares Priceline users found on this route in the last 72 hours.", "toolsUsed": [ "route_airlines" ] }, "q20": { "question": "What are the best airport lounge options when departing from Chicago?", "answer": "When departing from Chicago O'Hare (ORD) for San José, Costa Rica, you'll find several airline-branded lounges: United operates multiple United Clubs in Terminals 1 and 2, and a United Polaris Lounge in Terminal 1 for international business class passengers offering a sit-down dining room and private showers. American Airlines has an Admirals Club in Terminal 3, and Delta has a Sky Club in Terminal 2. For independent options, the Swissport Lounge in Terminal 5 is accessible via Priority Pass or day pass, though it can get crowded during peak afternoon hours.", "toolsUsed": [], "references": [ { "url": "https://en.wikipedia.org/wiki/DuPage_Airport", "title": "DuPage Airport", "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png", "time_published": "2026-07-16T20:45:00Z" }, { "url": "https://www.americanexpress.com/en-us/travel/lounges/the-platinum-card/CAN/Premium-Lounge-Terminal-1-International-iUec4avgfK/?inav=en_us_menu_travel_travel_services_airport_lounge_access_by_card", "title": "Premium Lounge at Guangzhou Baiyun International Airport | Amex US", "time_published": "2026-01-01T00:00:00Z" }, { "url": "https://www.americanexpress.com/en-us/travel/lounges/the-centurion-card-idc-en/ORD/Swissport-Lounge-Terminal-5-Concourse-M-5mTKilCqDl/", "title": "Swissport Lounge at O'Hare International Airport | Amex US", "time_published": "2026-01-01T00:00:00Z" }, { "url": "https://en.wikipedia.org/wiki/DuPage%20Airport", "title": "DuPage Airport", "time_published": "2026-03-13T22:38:40Z" }, { "url": "http://delta.com/content/www/en_US/traveling-with-us/airports-and-aircraft/airports/airport-services/hawaii-idaho-illinois-indiana-iowa.html", "title": "Airport Services in Hawaii, Idaho, Illinois, Indiana and Iowa | Delta Air Lines", "time_published": "2023-01-01T00:00:00Z" } ] }, "q21": { "question": "What is the baggage allowance on this route from Chicago to San José?", "answer": "Baggage allowance on flights from Chicago to San José varies by airline and fare type. Basic economy fares often exclude a free checked bag, while standard international economy typically includes one checked bag and a carry-on. Premium cabins offer more generous allowances." }, "q22": { "question": "What cabin and seat options are typical from Chicago to San José?", "answer": "Flights from Chicago to San José typically offer Economy and standard recliner Business class, with flat‑bed Business and Premium Economy uncommon on this route." }, "q23": { "question": "Are same‑day changes or standby possible on this route?", "answer": "Same‑day changes and standby depend on the airline and fare class; flexible and premium tickets often allow modifications, while basic economy typically does not." } } } }