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Flights from Houston to Sinop

We've found these cheap flights for you. You can book one-way or return flight tickets.

      • IAH 20:45
        17h 20m
        1 stop
        OPS 16:05
        Houston - Sinop | Thu, Dec 25 | United Airlines
        OPS 10:00
        21h 20m
        1 stop
        IAH 05:20
        Sinop - Houston | Thu, Jan 1 | LATAM Airlines
        VND 63,048,070 VND 70,840,528
        11% OFF
        11% OFF
        VND 70,840,528 VND 63,048,070
      • HOU 13:00
        17h 25m
        1 stop
        OPS Invalid Date
        Houston - Sinop | Fri, Dec 12 | Normal Airline
        OPS 15:00
        6h
        Direct
        HOU 16:00
        Sinop - Houston | Sun, Dec 14 | Normal Airline
        Find More Flights
        Find More Flights
      • HOU 13:00
        17h 25m
        1 stop
        OPS Invalid Date
        Houston - Sinop | Fri, Dec 12 | Normal Airline
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        Search
      • HOU 13:00
        17h 25m
        1 stop
        OPS Invalid Date
        Houston - Sinop | Fri, Dec 12 | Normal Airline
        Search
        Search
      • HOU 13:00
        17h 25m
        1 stop
        OPS Invalid Date
        Houston - Sinop | Fri, Dec 12 | Normal Airline
        Search
        Search
      • HOU 13:00
        17h 25m
        1 stop
        OPS Invalid Date
        Houston - Sinop | Fri, Dec 12 | Normal Airline
        Search
        Search
      • HOU 13:00
        17h 25m
        1 stop
        OPS Invalid Date
        Houston - Sinop | Fri, Dec 12 | Normal Airline
        Search
        Search
      • HOU 13:00
        17h 25m
        1 stop
        OPS Invalid Date
        Houston - Sinop | Fri, Dec 12 | Normal Airline
        Search
        Search
      • HOU 13:00
        17h 25m
        1 stop
        OPS Invalid Date
        Houston - Sinop | Fri, Dec 12 | Normal Airline
        Search
        Search
      • HOU 13:00
        17h 25m
        1 stop
        OPS Invalid Date
        Houston - Sinop | Fri, Dec 12 | Normal Airline
        Search
        Search
      • HOU 13:00
        17h 25m
        1 stop
        OPS Invalid Date
        Houston - Sinop | Fri, Dec 12 | Normal Airline
        Search
        Search

Displayed flight fares from Houston to Sinop are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight details for Houston to Sinop

The distance between Houston and Sinop is 6,279.67 km. Based on Trip.com's data, travel demand peaks in July. The off-season for travel is December.

Cheapest round-trip ticket priceVND 63,048,070
Off-season for travelDecember
Peak season for travelJuly
Flight distance6,279.67 km

Find the best time to fly from Houston to Sinop

The cheapest time for Houston to Sinop flights: Dec 21 to Dec 28 — one way flight prices from VND 63,048,070.

Cheapest flights
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  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Houston to Sinop, calculated over the upcoming 10 weeks.

Flight FAQs

  • When is the best time to book flights from Houston to Sinop?

    By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Houston to Sinop is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Houston to Sinop, you can use various tools on Trip.com:
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Sinop travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Houston to Sinop is December, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Houston to Sinop on December 25, 2025 with United Airlines, with prices starting at VND 63,048,069.
  • The time difference between Sinop and Houston is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.