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$1,549+ Cheap flights from Dulles Intl (IAD) to Sanya (SYX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SYX
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Dulles Intl to Sanya

Best flights from Dulles Intl to Sanya
Discover carefully curated flight deals from Dulles Intl to Sanya that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This Air China deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air China is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2212:40 pmIAD - SYX
2 stops39h 05mAir China
Mon 1/268:30 pmSYX - IAD
1 stop35h 00mAir China
Deal found 12/10$1,549

Find flight deals from Dulles Intl to Sanya

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Sanya (SYX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$1,530
(Mytrip)
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Sanya Phoenix Intl flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Sanya Phoenix Intl flights.
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From Washington, D.C. Dulles Intl to Sanya Phoenix Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Sanya that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Sanya that are best for you.

Fly from

Dulles Intl

Fly to

Sanya

Route

Depart

Return

Price

Washington, D.C.Sanya

IAD - SYX

IADSYX

Washington, D.C. Dulles Intl

Thu 1/22

12:40 pm-4:45 pm

2 stops39h 05m

Sanya Phoenix Intl

Mon 1/26

8:30 pm-6:30 pm

1 stop35h 00m

$1,549

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Sanya flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Sanya flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Sanya flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Sanya flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Sanya flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Sanya

Have a flexible travel schedule? Discover the best time to fly to Sanya from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Sanya. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sanya from Washington, D.C. Dulles Intl?

    Sanya Phoenix Intl (SYX), located 7.4 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Sanya. 0 airlines have flights to Phoenix Intl from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Sanya Phoenix Intl should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Sanya?

    For as low as $1,549, Air China can have you in Sanya from Washington, D.C. Dulles Intl Airport in 39h 05m. Washington, D.C. Dulles Intl Airport and Sanya are separated by a distance of 8450 mi.

  • Can I find deals for flights from Dulles Intl to Sanya that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Sanya flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Sanya?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Sanya.

  • Can I find deals for business class flights from Dulles Intl to Sanya?

    Yes. Cheapflights offers flight deals from Dulles Intl to Sanya by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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