{
  "response": {
    "Key": "CHI-BEG",
    "orig": {
      "code": "CHI",
      "type": "airport",
      "city": "Chicago",
      "fullCity": "Chicago, Illinois",
      "airport": "Dupage County"
    },
    "dest": {
      "code": "BEG",
      "type": "airport",
      "city": "Belgrade",
      "fullCity": "Belgrade, Serbia",
      "airport": "Nikola Tesla Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Chicago to Belgrade?",
        "answer": "The flight from Chicago to Belgrade is about 4,990 miles and takes roughly 9 hours 50 minutes nonstop on Air Serbia, which operates the route three days a week. The return leg is longer at about 10 hours 55 minutes, a difference of over an hour due to prevailing winds. Connecting itineraries via European hubs typically add two to six hours of total travel time.",
        "methodology": "Carrier service, flight times and distances for this route come from our flight-schedule database, which draws on published airline timetables, U.S. government schedule data, and observed operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We report the days of the week and the departure times each carrier operates. The typical flight time is the median scheduled block time, given both per carrier and across all carriers on the route; where a schedule does not publish an elapsed time, it is derived from the scheduled departure and arrival times converted to UTC. Outbound and return times are computed by the same method, so the difference between them is directly comparable and reflects prevailing winds rather than any change in derivation. Distance is the great-circle distance between the two specific airports named, so an actual flown track is typically 2-5% longer. Where shown, on-time departure and arrival rates and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, which covers U.S. domestic routes only; where a typical fare is shown, it comes from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold.",
        "toolsUsed": [
          "flight_schedule"
        ]
      },
      "q1": {
        "question": "Are there any direct flights from Chicago to Belgrade?",
        "answer": "Yes, Air Serbia flies non-stop from Chicago O'Hare (ORD) to Belgrade (BEG) three times a week — on Mondays, Wednesdays, and Saturdays — with departure times between 4:40 PM and 11:55 PM. The flight covers approximately 4,985 miles and takes around 9 hours and 50 minutes eastbound, while the return is about 10 hours and 55 minutes.",
        "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. Carrier service, flight times and distances for this route come from our flight-schedule database, which draws on published airline timetables, U.S. government schedule data, and observed operations from the EUROCONTROL/OpenSky Open Performance Data Initiative (OPDI). We report the days of the week and the departure times each carrier operates. The typical flight time is the median scheduled block time, given both per carrier and across all carriers on the route; where a schedule does not publish an elapsed time, it is derived from the scheduled departure and arrival times converted to UTC. Outbound and return times are computed by the same method, so the difference between them is directly comparable and reflects prevailing winds rather than any change in derivation. Distance is the great-circle distance between the two specific airports named, so an actual flown track is typically 2-5% longer. Where shown, on-time departure and arrival rates and cancellation rates come from the U.S. Bureau of Transportation Statistics (BTS) Airline On-Time Performance dataset, which covers U.S. domestic routes only; where a typical fare is shown, it comes from the U.S. DOT Airline Origin and Destination Survey (DB1B), a quarterly 10% sample of tickets sold.",
        "toolsUsed": [
          "route_airlines",
          "flight_schedule"
        ]
      },
      "q3": {
        "question": "What are the ground transportation options in Belgrade?",
        "answer": "From Belgrade Nikola Tesla Airport (BEG) to the city center, the fastest and most widely used option is the A1 minibus express, which runs every 20–30 minutes and takes about 30 minutes to Slavija Square. Public bus line 72 is a cheaper alternative, though slower and less comfortable with luggage. Taxis are available outside the terminal; use only licensed operators from the official desk to avoid scams, and expect a fare around 2,000 RSD. Ride-sharing services like Car:Go and Yandex Go operate locally but may have limited airport pickup. Car rentals are available from major agencies if you plan to explore beyond the city.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/List_of_airports_in_Serbia",
            "title": "List of airports in Serbia",
            "time_published": "2026-04-11T20:09:05Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Airport_City_Belgrade",
            "title": "Airport City Belgrade",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-16T03:46:34Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Old_Post_Office_(Belgrade,_Serbia)",
            "title": "Old Post Office (Belgrade, Serbia)",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-17T04:21:10Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Belgrade_Bus_Station",
            "title": "Belgrade Bus Station",
            "time_published": "2026-06-22T05:43:09Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transport_in_Belgrade",
            "title": "Transport in Belgrade",
            "time_published": "2026-05-03T16:35:09Z"
          }
        ]
      },
      "q6": {
        "question": "Are overnight (red‑eye) flights available from Chicago to Belgrade?",
        "answer": "No nonstop red‑eye flights operate from Chicago to Belgrade, but several one‑stop itineraries with an overnight long leg are available. The earliest overnight leg departs Chicago around 4:05 PM on Lufthansa via Frankfurt and arrives at 7:25 AM, while the latest departures leave around 9:15 PM on British Airways via London Heathrow and arrive at 11:15 AM. Other red‑eye connections route through Munich (United, departing 6:00 PM, arriving 9:40 AM), Vienna (Austrian, 4:20 PM → 8:15 AM), Paris CDG (Air France, 5:10 PM → 8:15 AM), Copenhagen (SAS, 7:15 PM → 10:45 AM), Zurich (Swiss, 7:05 PM → 10:50 AM), and Amsterdam (KLM, 4:20 PM → 7:05 AM).",
        "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 Belgrade?",
        "answer": "Air Serbia operates the only nonstop flight from Chicago to Belgrade, departing O'Hare up to six times weekly on Mondays, Wednesdays, and Saturdays with multiple departure times throughout the day.",
        "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 Belgrade?",
        "answer": "Common layovers include Istanbul, Frankfurt, Vienna and Munich. Istanbul offers broad connections via Turkish Airlines and a single-terminal hub for efficient transfers. Frankfurt, Vienna and Munich provide extensive European networks, streamlined connections and visa‑free transit for many nationalities."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Belgrade?",
        "answer": "May, June, and September offer warm days, cool evenings, and fewer tourists than the peak summer months."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Chicago to Belgrade?",
        "answer": "Bring a passport valid for at least six months beyond your stay, check if you need a Serbian visa, and carry proof of onward travel, a payment method for bags, and any required vaccination documents."
      },
      "q12": {
        "question": "Which airport should I use in Belgrade?",
        "answer": "Belgrade has a single airport, Nikola Tesla Airport, located about 18 kilometers west of the city center."
      },
      "q13": {
        "question": "How do I get to Dupage County from the city center?",
        "answer": "From downtown Chicago to O'Hare International Airport, the CTA Blue Line 'L' train is the fastest and most popular option, running directly from the Loop to the airport in about 40–45 minutes for a low fare. Metra's North Central Service also stops at O'Hare, though it's less frequent and mainly useful from the northern suburbs. Shuttle buses, taxis, and ride‑share services offer door‑to‑door convenience at a higher cost, with driving times varying heavily due to traffic on the Kennedy Expressway. On‑site parking includes the Main Garage for short stays and economy lots for longer trips, with the option to reserve a space in advance.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://flychicago.com/ohare/tofrom/pages/default.aspx",
            "title": "Getting To and From O'Hare International Airport | Chicago O’Hare International Airport (ORD)",
            "favicon": "https://flychicago.com/_catalogs/masterpage/favicon.ico"
          },
          {
            "url": "https://www.flychicago.com/ohare/map",
            "title": "Map | Chicago O’Hare International Airport (ORD)",
            "time_published": "2026-05-27T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transportation_in_Chicago",
            "title": "Transportation in Chicago",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-05-15T02:56:07Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Transportation%20in%20Chicago",
            "title": "Transportation in Chicago",
            "time_published": "2026-04-13T06:59:09Z"
          },
          {
            "url": "https://faa.gov/regulations_policies/orders_notices/index.cfm/go/document.information/documentID/6111",
            "title": "Order  3330.39 - Chicago/o'hare Airport Traffic Control Tower (ATCT) Staffing PChicago/o'hare Airport Traffic Control Tower (ATCT) Staffing Plan (Cancelled)",
            "time_published": "2026-04-10T00:00:00Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Belgrade airport?",
        "answer": "Belgrade Airport (BEG) does not have an on-site hotel, capsule hotel, or sleeping pods inside the terminals, but several hotels are located nearby and connected by shuttle. Travellers report that the airport is generally accommodating to overnight sleepers, with carpeted floors and armrest-free seating on the airside, though you may want a sweater or blanket as it can get cold and noisy.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.sleepinginairports.net/guides/belgrade-airport-guide.htm",
            "title": "Belgrade Airport Guide (BEG) - Sleeping in Airports",
            "favicon": "https://www.sleepinginairports.net/nitropack_static/oBWrHkPujHTPIaVWqdDSDhClXUyrYhhb/assets/images/optimized/rev-b853180/www.sleepinginairports.net/wp-content/uploads/2018/09/cropped-sia-logo-180x180.png",
            "time_published": "2018-08-23T17:45:30Z"
          },
          {
            "url": "https://sleepinginairports.net/reviews/belgrade-airport-reviews.htm",
            "title": "Belgrade Nikola Tesla   Airport Reviews (BEG) – Sleeping in Airports",
            "time_published": "2025-05-20T00:00:00Z"
          },
          {
            "url": "https://activities.marriott.com/europe/serbia/belgrade/activities/belgrade_airport_to_city_center_transfers-XRFLWO?property=BEGXR",
            "title": "Belgrade Airport to City Center Transfers",
            "time_published": "2026-03-02T00:00:00Z"
          },
          {
            "url": "https://activities.marriott.com/europe/serbia/belgrade/activities/tasting_tour_of_belgrade_serbia_food_culture-XB67QW?property=BEGCY",
            "title": "Tasting Tour of Belgrade Serbia Food Culture",
            "time_published": "2026-03-02T00:00:00Z"
          },
          {
            "url": "https://careers.accor.com/global/en/job/housekeeping-supervisor-f-m-nb-in-belgrade-serbia-jid-81834",
            "title": "HOUSEKEEPING SUPERVISOR (F/M/NB) job in , Belgrade, Serbia | Accor",
            "time_published": "2026-01-19T00:00:00Z"
          },
          {
            "url": "https://activities.marriott.com/europe/serbia/belgrade/activities/private_walking_tour_of_belgrade_and_old_zemun-XSEFDF",
            "title": "Private Walking Tour of Belgrade and Old Zemun",
            "time_published": "2026-03-03T00:00:00Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Chicago to Belgrade?",
        "answer": "There is no nonstop service from Chicago to Belgrade, so all flights connect. The long-haul leg is most often operated by a Boeing 787-10 or 747-8I (via Frankfurt on Lufthansa or United), a Boeing 787-8 (via Munich on United or Lufthansa), or a Boeing 787-9 (via Istanbul on Turkish Airlines). Other widebody types that appear include the Airbus A350-900, A340-300, A330-300, Boeing 777-300ER, and Boeing 767-300, depending on the connecting city and airline. The exact aircraft varies by day and carrier, but the 787 family and the 747-8I are the most common on this route.",
        "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 Belgrade?",
        "answer": "Air Serbia (JU) is the only airline flying nonstop from Chicago O'Hare to Belgrade, and it is not a member of any global alliance. Other alliances may serve the route via connections, but no specific alliance carriers appear in the published schedule data for this route.",
        "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": "At Chicago O'Hare, departing travelers can choose from several lounges depending on their airline and terminal. United Airlines operates six United Clubs across Terminals 1 and 2, plus a Polaris Lounge in Terminal 1 for international first and business class passengers. Terminal 3 houses two American Airlines Admirals Clubs and an American Flagship Lounge. Terminal 5 offers a Delta Sky Club, an Air France Lounge, and a LOT Business Lounge, all accessible with business class tickets or elite status, along with the independent Swissport Lounge and Wingtips Lounge, which accept Priority Pass and other programs.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://www.flychicago.com/ohare/ServicesAmenities/services/Pages/lounges.aspx",
            "title": "Airline Lounges | Chicago O’Hare International Airport (ORD)",
            "time_published": "2026-05-29T00:00:00Z"
          },
          {
            "url": "https://www.delta.com/us/en/airports/united-states/chicago-sky-club-airport-map",
            "title": "Chicago O'Hare (ORD) Airport Map & Lounges | Delta Air Lines",
            "time_published": "2022-11-18T00:00:00Z"
          },
          {
            "url": "https://my.prioritypass.com/en-GB/lounges/united-states-of-america/ohare-international/ord10-swissport-lounge",
            "title": "Swissport Lounge ORD AIRPORT Terminal 5 O'Hare International | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://americanexpress.com/en-ca/travel/lounges/the-platinum-card/ORD",
            "title": "American Express Lounges at O'Hare International Airport | Amex CA",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          },
          {
            "url": "http://www.americanexpress.com/en-us/travel/lounges/the-platinum-card/ORD/Swissport-Lounge-Terminal-5-Concourse-M-5mTKilCqDl/",
            "title": "Swissport Lounge at O'Hare International Airport | Amex US",
            "favicon": "https://www.americanexpress.com/apple-touch-icon-152x152.png"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Chicago to Belgrade?",
        "answer": "Baggage allowance on Chicago to Belgrade flights depends on the airline and fare class. Basic economy tickets are usually restrictive and may not include a checked bag. Standard international economy fares typically include one checked bag and a carry‑on, while premium cabins offer more generous allowances."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Chicago to Belgrade?",
        "answer": "Typical cabin options on flights from Chicago to Belgrade include Economy and flat‑bed Business class; Premium Economy is available on select airlines depending on the routing."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies differ by airline and fare; flexible and premium tickets often allow same‑day changes or standby, while Basic Economy typically does not."
      }
    }
  }
}