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$929+ Cheap flights from Seattle (SEA) to Newcastle (NTL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — NTL
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheap flight deals from Seattle to Newcastle

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Newcastle (NTL). 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 April 17, 2025.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$1,448
(Air Canada)

One-way from

$929
(EaseMyTrip)
Provider with most accurate pricing for Seattle/Tacoma Intl-Newcastle Williamtown flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Newcastle Williamtown flights.
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From Seattle/Tacoma Intl to Newcastle Williamtown
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One-way flight from Seattle/Tacoma Intl to Newcastle Williamtown
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Find flight deals from Seattle to Newcastle

Cheapest flights from Seattle to Newcastle
Explore the most affordable flight options available from Seattle to Newcastle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2025.

This Air Canada deal was found by Cheapflights users on 4/17. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/17:15 pmSEA - NTL
2 stops27h 00mMultiple Airlines
Sun 6/86:00 amNTL - SEA
2 stops20h 18mMultiple Airlines
Deal found 4/17$1,442
This Jetabroad deal was found by Cheapflights users on 4/17. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/12:55 pmSEA - NTL
3 stops37h 05mAir New Zealand
Sun 6/86:00 amNTL - SEA
3 stops29h 33mAir New Zealand
Deal found 4/17$1,755

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle 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 April 17, 2025.
Use the filters below to find and compare flights from Seattle to Newcastle that are best for you.

Fly from

Seattle

Fly to

Newcastle

Route

Depart

Return

Price

SeattleNewcastle

SEA - NTL

SEANTL

Seattle/Tacoma Intl

Sun 6/1

7:15 pm-3:15 pm

2 stops27h 00m

Newcastle Williamtown

Sun 6/8

6:00 am-9:18 am

2 stops20h 18m

$1,442

SeattleNewcastle

SEA - NTL

SEANTL

Seattle/Tacoma Intl

Sun 6/1

2:55 pm-9:00 pm

3 stops37h 05m

Newcastle Williamtown

Sun 6/8

6:00 am-6:33 pm

3 stops29h 33m

$1,755

SeattleNewcastle

SEA - NTL

SEANTL

Seattle/Tacoma Intl

Sun 6/1

7:27 pm-2:00 pm

2 stops25h 33m

$930

SeattleNewcastle

SEA - NTL

SEANTL

Seattle/Tacoma Intl

Sat 5/31

1:50 am-2:50 pm

2 stops44h 00m

$1,319

SeattleNewcastle

SEA - NTL

SEANTL

Seattle/Tacoma Intl

Sun 6/1

12:00 pm-10:40 am

3 stops53h 40m

$2,169

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

  • Most accurate provider: When it comes to deals on Seattle-Newcastle flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Seattle-Newcastle flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Seattle-Newcastle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Newcastle flights, Cheapflights users trust Expedia the most. Expedia 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 Seattle-Newcastle 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 Seattle to Newcastle

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

Rainfall in Newcastle by month

Plan your trip to Newcastle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Newcastle ranges from 2.4 - 4.7 inches per month. March is typically the wettest month, when rainfall can reach 4.7 in. November is typically the driest time to visit Newcastle when rainfall is around 2.4 in.

Temperature in Newcastle by month

Plan your trip to Newcastle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Newcastle, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of July, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Newcastle

Get insights into the airlines that provide service to Newcastle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Newcastle. Reviews last updated April 17, 2025.
EVA Air
8.4
Very good
1,177 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
EVA Air
8.4
Very good
1,177 reviews
EVA Air
8.4
Very good
1,177 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Air New Zealand
8.0
Very good
467 reviews
EVA Air
8.4
Very good
1,177 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Qantas Airways
7.5
Good
819 reviews
EVA Air
8.4
Very good
1,177 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
Qatar Airways
7.4
Good
3,554 reviews
EVA Air
8.4
Very good
1,177 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.
United Airlines
7.4
Good
8,667 reviews
EVA Air
8.4
Very good
1,177 reviews

Overall

8.4

Comfort

8.3

Entertainment

8.0

Crew

8.6

Food

8.1

Boarding

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Feb 2025

SFO - TPE

Inside plane was clean and chair was comfortable, but flight attendants serving coffee without giving me cream and sugar, even I ask he escape my request.

Related info for your journey

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

  • What are the cheapest airlines to fly from Seattle to Newcastle one-way?

    For one-way options, check prices for Qantas Airways. According to our data, you can fly for as low as $929. Users have also found prices from $930 and $1,319 on United Airlines and EVA Air, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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.

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