{
  "response": {
    "Key": "HOU-DAD",
    "orig": {
      "code": "HOU",
      "type": "airport",
      "city": "Houston",
      "fullCity": "Houston, Texas",
      "airport": "William P Hobby Airport"
    },
    "dest": {
      "code": "DAD",
      "type": "airport",
      "city": "Da Nang",
      "fullCity": "Da Nang, Vietnam",
      "airport": "Da Nang Intl Airport"
    },
    "faq": {
      "q0": {
        "question": "What is the typical flight duration from Houston to Da Nang?",
        "answer": "There are no nonstop flights from Houston (IAH or HOU) to Da Nang (DAD). With one stop, typical total travel time is 19 to 24 hours, depending on the connection; common layover cities include Seoul (Incheon), Tokyo (Narita), or Taipei, with Seoul often offering the shortest overall journey. The return flight duration is similar, typically within the same range."
      },
      "q2": {
        "question": "Are there visa requirements to travel from Houston to Da Nang?",
        "answer": "Yes. For a flight from Houston to Da Nang: U.S. citizens need a valid visa to enter Vietnam unless eligible for the 45‑day visa exemption (for tourism only, single entry, passport valid 6+ months, and must not have entered Vietnam under visa exemption in the prior 30 days), otherwise an e‑visa or visa on arrival (with pre‑approval letter) is required. Vietnamese citizens must have a valid U.S. visa or ESTA authorization to enter the United States. Other nationals should check with their respective embassies."
      },
      "q3": {
        "question": "What are the ground transportation options in Da Nang?",
        "answer": "Da Nang Airport (DAD) is only 3 km from the city center, so taxis are the fastest and most-used option, taking about 10 minutes and costing around 50,000–100,000 VND. Ride-hailing apps like Grab are widely available and often cheaper than traditional taxis. There is no direct rail or metro link, but public buses serve the route for budget travelers, though they are slower and less convenient. Car rentals are possible but not common for short transfers, and many hotels offer shuttle services.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/Da%20Nang%20International%20Airport",
            "title": "Da Nang International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-14T06:38:50Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Da%20Nang",
            "title": "Da Nang",
            "time_published": "2026-04-28T19:09:48Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Da_Nang",
            "title": "Da Nang",
            "time_published": "2026-07-02T01:43:20Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/City_Airport_Train",
            "title": "City Airport Train",
            "time_published": "2026-05-28T15:36:05Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Da%20Nang%20Air%20Base",
            "title": "Da Nang Air Base",
            "time_published": "2026-04-19T17:07:38Z"
          }
        ]
      },
      "q4": {
        "question": "When is the cheapest time to fly from Houston to Da Nang?",
        "answer": "The cheapest months to fly from Houston to Da Nang are September, April, and August, with average fares around $1,515 to $1,558, while the most expensive months are June, December, and July, where average fares climb to $1,909 to $2,137.",
        "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 Houston to Da Nang?",
        "answer": "For the best fares from Houston to Da Nang, aim to book 23–26 weeks (roughly 5–6 months) ahead, where average prices settle around $1,443. Booking about 180 days out can yield the absolute lowest fare near $1,435, while last-minute tickets within two weeks of departure spike to around $1,900–$1,990. Summer and holiday periods typically push optimal booking even earlier, so targeting that 5–6 month window remains your best bet.",
        "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 Houston to Da Nang?",
        "answer": "No overnight or red‑eye flights are available from Houston (HOU) to Da Nang (DAD). Neither nonstop red‑eyes nor connecting itineraries whose long leg is a red‑eye were found in the schedule.",
        "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 Houston to Da Nang?",
        "answer": "There are no non‑stop flights from Houston Hobby to Da Nang. A common one‑stop routing is on EVA Air via Taipei (TPE), with the long transpacific leg and the onward connection both operated by EVA Air. On a typical day, one such connection is available; frequencies can vary by day and season, so this represents the usual pattern rather than a fixed daily count. No typical per‑carrier fares are available for this route in the data.",
        "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 Houston and Da Nang?",
        "answer": "Common layover cities between Houston and Da Nang include Seoul, Tokyo, Taipei, and Hong Kong. These hubs offer efficient connections, with Seoul and Taipei providing visa-free transit for many nationalities, and all featuring modern airports with ample amenities."
      },
      "q9": {
        "question": "How reliable are on‑time departures on this route from Houston to Da Nang?",
        "answer": "Reliability is generally decent, but connecting itineraries add complexity. Booking early morning departures from Houston may improve on‑time chances, though no single airline dominates this route with notably superior performance."
      },
      "q10": {
        "question": "Which months have the best weather for traveling to Da Nang?",
        "answer": "February to May offers sunny, dry weather with comfortable temperatures and fewer tourists before the summer peak."
      },
      "q11": {
        "question": "What documents should I bring with me to the airport when flying from Houston to Da Nang?",
        "answer": "Bring a passport valid for at least six months from your entry date, a Vietnamese visa or pre-approval letter for visa on arrival, proof of onward travel, payment for baggage, and any required vaccination certificates."
      },
      "q12": {
        "question": "Which airport should I use in Da Nang?",
        "answer": "Da Nang has only one airport, Da Nang International Airport, which is just 3 km from the city centre and serves all flights to the region."
      },
      "q13": {
        "question": "How do I get to William P Hobby Airport from the city center?",
        "answer": "From downtown Houston, you can reach William P. Hobby Airport (HOU) by ride-share (Uber/Lyft), taxi, shuttle, or driving yourself. Ride-share and taxis are the most popular and fastest options, typically taking 15–25 minutes depending on traffic, with ride-share generally costing less than a taxi. Shared shuttle vans offer a more affordable alternative, while driving and parking is convenient with both short-term and long-term lots available, though costs vary by duration.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://fly2houston.com/hou/ground-transportation",
            "title": "HOU Ground Transportation | Airport Shuttle, Taxi, Uber, Lyft & Rent Car Houston"
          },
          {
            "url": "https://fly2houston.com/hou",
            "title": "HOU Houston Airport | William P. Hobby",
            "time_published": "2026-06-09T05:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/William_P._Hobby_Airport",
            "title": "William P. Hobby Airport",
            "time_published": "2026-07-06T09:58:05Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/William%20P.%20Hobby%20Airport",
            "title": "William P. Hobby Airport",
            "time_published": "2026-04-21T04:20:29Z"
          },
          {
            "url": "https://faa.gov/flight_deck/hef",
            "title": "Manassas Regional Airport/Harry P. Davis Field (HEF) | Federal Aviation Administration",
            "time_published": "2026-03-10T00:00:00Z"
          }
        ]
      },
      "q14": {
        "question": "Are there hotels or sleeping facilities at Da Nang airport?",
        "answer": "Da Nang Airport (DAD) does not have on-site hotels, capsule hotels, or sleeping pods. The terminals close nightly from 11:00 PM to 6:00 AM, so overnight stays inside are not permitted. Several nearby hotels offer shuttle service for a fee, providing a convenient option for travelers needing rest between flights.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://sleepinginairports.net/guides/da-nang-airport-guide.htm",
            "title": "Da Nang Airport Guide (DAD) - 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": "2018-08-08T18:34:41Z"
          },
          {
            "url": "https://www.sleepinginairports.net/reviews/da-nang-airport-reviews.htm",
            "title": "Da Nang Airport Reviews (DAD)",
            "time_published": "2023-01-20T00:00:00Z"
          },
          {
            "url": "https://activities.marriott.com/asia/vietnam/da-nang/activities/da_nang_hotel_to_da_nang_airport_private_transfer_or_vice_versa-XHTAJB",
            "title": "Da Nang Hotel to DA NANG AIRPORT Private Transfer Or Vice versa",
            "time_published": "2026-02-23T00:00:00Z"
          },
          {
            "url": "https://activities.marriott.com/asia/vietnam/da-nang/activities/da_nang_airport_to_da_nang_hotel_by_private_transfer-XMTGLQ?property=DADNN",
            "title": "DA NANG AIRPORT to Da Nang Hotel by Private Transfer",
            "time_published": "2026-02-23T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Da%20Nang%20International%20Airport",
            "title": "Da Nang International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-14T06:38:50Z"
          },
          {
            "url": "https://play.google.com/store/apps/details?hl=en&id=com.frugalflyer.airport.dad",
            "title": "Da Nang Airport (DAD) Info - Apps on Google Play",
            "time_published": "2025-10-28T00:00:00Z"
          }
        ]
      },
      "q15": {
        "question": "Are there currency exchange offices, prayer rooms and Wi‑Fi at Da Nang Intl Airport?",
        "answer": "Da Nang International Airport offers currency exchange services within both its international and domestic terminals, with counters located in the departure and arrival halls. Prayer rooms are available in the international terminal, providing a quiet space for travelers. Free Wi‑Fi is accessible throughout the airport, allowing passengers to stay connected without charge.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://en.wikipedia.org/wiki/Da%20Nang%20International%20Airport",
            "title": "Da Nang International Airport",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-14T06:38:50Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Da%20Nang",
            "title": "Da Nang",
            "time_published": "2026-04-28T19:09:48Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Da%20Nang%20Air%20Base",
            "title": "Da Nang Air Base",
            "time_published": "2026-04-19T17:07:38Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Airport_terminal",
            "title": "Airport terminal",
            "time_published": "2026-06-26T14:29:44Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Airport_Terminal_1_station_(Taoyuan)",
            "title": "Airport Terminal 1 metro station (Taiwan)",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-06T05:24:06Z"
          }
        ]
      },
      "q16": {
        "question": "Are there accessible services or children's facilities at the Houston and Da Nang airports?",
        "answer": "At Houston Hobby (HOU), wheelchair assistance is arranged directly with your airline (request at least 48 hours in advance), and the airport offers accessible shuttles, ADA-compliant restrooms, companion care restrooms, and TSA Cares support for security screening. Service animals are welcome, with a relief area post-security. For Da Nang (DAD), specific details on children’s play areas or dedicated accessibility programs are not publicly documented, but as a major Vietnamese airport it generally provides wheelchair assistance through airlines and basic accessible facilities—contact your airline ahead of time to confirm services.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://fly2houston.com/hou/related-content/airport-assistance-disabled-travelers",
            "title": "What does airport assistance for disabled travelers include?",
            "time_published": "2026-01-23T00:00:00Z"
          },
          {
            "url": "https://fly2houston.com/hou",
            "title": "HOU Houston Airport | William P. Hobby",
            "time_published": "2026-06-09T05:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/William_P._Hobby_Airport",
            "title": "William P. Hobby Airport",
            "time_published": "2026-07-06T09:58:05Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/William%20P.%20Hobby%20Airport",
            "title": "William P. Hobby Airport",
            "time_published": "2026-04-21T04:20:29Z"
          },
          {
            "url": "http://faa.gov/air_traffic/flight_info/aeronav/procedures/application/index.cfm?directory=2016122829046305004-HOU-NDBR&event=directory&nasrId=HOU&type=ndbr",
            "title": "Airport Procedures Information Gateway",
            "time_published": "2025-12-03T16:08:12Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Da%20Nang",
            "title": "Da Nang",
            "time_published": "2026-04-28T19:09:48Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Ovda%20Airport",
            "title": "Ovda Airport",
            "time_published": "2026-04-29T04:55:38Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/1969_Da_Nang_mid-air_collision",
            "title": "1969 Da Nang mid-air collision",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-07-21T02:27:18Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/Kualanamu%20International%20Airport",
            "title": "Kualanamu International Airport",
            "time_published": "2026-04-30T01:37:26Z"
          },
          {
            "url": "https://en.wikipedia.org/w/index.php?diff=prev&oldid=1354734757&title=Draft:1969_Da_Nang_mid-air_collision",
            "title": "Draft:1969 Da Nang mid-air collision: Difference between revisions",
            "favicon": "https://en.wikipedia.org/static/apple-touch/wikipedia.png",
            "time_published": "2026-05-17T03:56:22Z"
          }
        ]
      },
      "q17": {
        "question": "What aircraft are typically used on flights from Houston to Da Nang?",
        "answer": "There is no nonstop service from Houston (HOU) to Da Nang (DAD). On a typical connecting itinerary, the long-haul leg is operated by a Boeing 777-300ER, usually via Taipei (TPE) on EVA Air, with a connecting Airbus A330-300 for the shorter regional segment. The exact aircraft can vary by day and airline, but widebody jets like the 777 are standard for the trans-Pacific portion of 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"
        ]
      },
      "q20": {
        "question": "What are the best airport lounge options when departing from Houston?",
        "answer": "William P. Hobby Airport (HOU) does not have traditional airline-branded lounges like a United Club or Delta Sky Club, and there are no independent lounges such as a Plaza Premium Lounge. The only Priority Pass-eligible option is XpresSpa, located near Gate 45 in the Central Concourse, where a lounge visit entitlement grants 25 minutes in a massage chair or similar relaxation device—not a full-service lounge. This spa is open daily from 06:00 to 21:00 and is subject to capacity limits, so access is at the spa's discretion.",
        "toolsUsed": [],
        "references": [
          {
            "url": "https://fly2houston.com/hou/related-content/hou-tips-for-first-time-travelers",
            "title": "Navigating William P. Hobby Airport (HOU): Tips for First-Time Travelers",
            "time_published": "2026-01-23T00:00:00Z"
          },
          {
            "url": "https://www.prioritypass.com/pt-PT/lounges/usa/houston-tx-william-p-hobby/hou2s-xpresspa",
            "title": "XWELL HOU AIRPORT Houston TX William P. Hobby | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://en.wikipedia.org/wiki/William_P._Hobby_Airport",
            "title": "William P. Hobby Airport",
            "time_published": "2026-07-06T09:58:05Z"
          },
          {
            "url": "https://prioritypass.com/en-GB/lounges/united-states-of-america/william-p-hobby",
            "title": "William P. Hobby Airport HOU Lounges - HOU Airport Guide and lounges.  | Priority Pass",
            "time_published": "2024-11-05T00:00:00Z"
          },
          {
            "url": "https://fly2houston.com/hou",
            "title": "HOU Houston Airport | William P. Hobby",
            "time_published": "2026-06-09T05:00:00Z"
          }
        ]
      },
      "q21": {
        "question": "What is the baggage allowance on this route from Houston to Da Nang?",
        "answer": "Baggage allowance varies by airline and fare class. Basic economy typically excludes checked bags, while standard international economy usually includes one checked bag and a carry‑on. Premium cabins offer more generous allowances."
      },
      "q22": {
        "question": "What cabin and seat options are typical from Houston to Da Nang?",
        "answer": "Flights from Houston to Da Nang typically offer Economy and flat‑bed Business class; Premium Economy is available on select airlines, while First class is uncommon."
      },
      "q23": {
        "question": "Are same‑day changes or standby possible on this route?",
        "answer": "Policies depend on the airline and fare class; flexible and premium cabin tickets generally allow same‑day changes or standby, while basic economy fares typically do not."
      }
    }
  }
}