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$2,036+ Cheap flights from Washington to Newcastle (NTL)

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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — NTL
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Washington to Newcastle

Best flights from Washington to Newcastle
Discover carefully curated flight deals from Washington to Newcastle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

This Singapore Airlines deal was found by Cheapflights users on 12/20. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/218:45 amSEA - NTL
2 stops55h 50mSingapore Airlines
Wed 2/253:45 pmNTL - SEA
2 stops34h 25mSingapore Airlines
Deal found 12/20$2,036

Find flight deals from Washington to Newcastle

Keep the following information in mind while searching for Washington to Newcastle flight deals. Data was last updated December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$2,036
(Singapore Airlines)

Popular in

December

Cheapest in

August

Average price

$1,565
Provider with most accurate pricing for Seattle/Tacoma Intl-Sydney Kingsford Smith flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Sydney Kingsford Smith flights.
Search Deals
From Washington to Newcastle Williamtown
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($196 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Newcastle 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 23, 2025.
Use the filters below to find and compare flights from Washington to Newcastle that are best for you.

Fly from

Washington

Fly to

Newcastle

Route

Depart

Return

Price

SeattleNewcastle

SEA - NTL

SEANTL

Seattle/Tacoma Intl

Sat 2/21

8:45 am-11:35 am

2 stops55h 50m

Newcastle Williamtown

Wed 2/25

3:45 pm-7:10 am

2 stops34h 25m

$2,036

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Best time to book a flight from Washington to Newcastle

Have a flexible travel schedule? Discover the best time to fly to Newcastle from Washington 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.

Cheapflights Insights

Everything you need to know about your flight from Washington to Newcastle

What is the cheapest month to book a flight from State of Washington to Newcastle?

Currently, July is the cheapest month in which you can book a flight from State of Washington to Newcastle (average of $518). Flying from State of Washington to Newcastle in December is currently the most expensive (average of $851). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Washington to Newcastle. 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 Newcastle from Washington?

    Newcastle Williamtown (NTL), located 9.7 mi from the city center, is the airport you fly into when you book flights from Washington to Newcastle.

  • How long is the flight from State of Washington to Newcastle?

    A quick flight from State of Washington to Newcastle can take about 55h 50m. Singapore Airlines provides one of the quickest options available for as low as $2,036. The distance between State of Washington and Newcastle is about 7662 mi.

  • Can I find deals for flights from Washington to Newcastle that include hotel bookings?

    Yes. In addition to deals on Washington to Newcastle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington to Newcastle?

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

  • Can I find deals for business class flights from Washington to Newcastle?

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

  • What is the cheapest month to book a flight from State of Washington to Newcastle?

    Currently, July is the cheapest month in which you can book a flight from State of Washington to Newcastle (average of $518). Flying from State of Washington to Newcastle in December is currently the most expensive (average of $851). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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