Cheap flights from Seattle to Newcastle

Compare Seattle to Newcastle flight deals

Find the cheapest month or even day of the year to fly to Newcastle

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Flight deals from Seattle to Newcastle

Looking for a cheap last-minute deal or the best round-trip flight from Seattle to Newcastle Airport? If you want to travel next month, round-trip fares start from $859. Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Seattle to Newcastle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Newcastle flights are currently cheapest in July.

Seattle to Newcastle: Alternative routes

Compare routes from Seattle to Newcastle below. You may find an airport to fly into that's cheaper, faster, or easier than Newcastle.

Seattle to Newcastle: Flight information

The things to know before you go.
Cheapest flight found$859
Cheapest month to flyJuly

Finding cheap flights from Seattle to Newcastle: Frequently asked questions

The best price we found for a round-trip flight from Seattle to Newcastle is $859. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Seattle to Newcastle. But we found flights with one stop from $859.
There are no flights flying from Seattle to Newcastle, as of June 2026.
The cheapest month to fly from Seattle to Newcastle is usually July.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Newcastle Airport on Tuesday, July 7, 2026.
No airlines currently offer direct flights between Seattle and Newcastle Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Newcastle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Newcastle is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Newcastle is Icelandair.

Traveling from Seattle to Newcastle International Airport (NCL): What you need to know

  • The timezone in Newcastle is UTC+0, which is eight hours ahead of Seattle. Newcastle International Airport is located in Newcastle.

  • Leave enough time to make your flight from Seattle to NCL. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Peak months like July or high seasons such as Christmas and spring break will mean bigger waits at check-in and security. Play it safe and head to the airport even earlier. Arriving two hours before a domestic flight and up four hours ahead of international flights is a smart move.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Stopovers are the perfect opportunity to take a travel break and possibly even visit a new city. When browsing cheap flights from Seattle to NCL departing from Seattle-Tacoma International Airport (SEA), uncheck the 'Direct flights only' box to find all potential stops. Your journey might pause in:

    • London Heathrow Airport (LHR)

    • Paris Charles de Gaulle Airport (CDG)

    • Keflavik Airport (KEF)

  • Traveling from central Seattle to SEA takes about 35 minutes on public transport. If you drive, ride-share or take a cab, you'll cover the 23 kilometers in 25 minutes or so, depending on traffic.

  • Want an easy start to your vacation? Stay near Seattle-Tacoma International Airport. Whether you're boarding an early flight from Seattle to Newcastle International Airport or aren't a fan of being rushed, these hotels are just the thing:

  • Seattle-Tacoma International Airport has an excellent on-time record, so you're unlikely to face delays. Departures from SEA land on schedule 80% of the time.

Seattle Paine Field International Airport (PAE)

  • PAE is about 40 kilometers from central Seattle. It'll take you 40 minutes or so to get to the airport in a car from the city center. Public transport takes approximately 1 hour 30 minutes.

  • Want to enjoy an extra night away before catching your Seattle to NCL flight? Relax in a hotel near Seattle Paine Field International Airport before your adventure officially begins. These stays are calling your name:

  • The majority of flights that depart Seattle Paine Field International Airport touch down at their destination as expected. It maintains a high on-time performance rate of 80%.

About Newcastle International Airport (NCL)

Getting from Newcastle International Airport (NCL) to central Newcastle

  • From Newcastle International Airport, central Newcastle is around 14 kilometers away. It takes about 25 minutes to reach the city center by car.

  • If you're using public transport, expect a journey of roughly 30 minutes.

How to find the cheapest flights from Seattle to Newcastle International Airport (NCL)

  • The cheapest price we've found for a one-way ticket from Seattle to Newcastle International Airport is $287. For a return flight on this route, the best price is $859. Depending on the availability and when you book, these fares can change.

  • To pick up cheap flights from Seattle to NCL, book early. Airlines tend to offer their most competitively priced fares when flights are first released.

  • The 'Whole month' tool will show you the cheapest Seattle to Newcastle International Airport tickets throughout the entire month. It's a good way to snap up a bargain if your trip dates are flexible.

  • Save time looking for cheap plane tickets from Seattle to NCL by creating a Price Alert. We'll send you an email or notification through the app when prices go down.

  • Tailor your trip using filters. Pick your arrival and departure times, total journey duration and airlines. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best' flights from Seattle to Newcastle International Airport.

The best time to fly from Seattle to Newcastle International Airport (NCL)

  • September is when most people book flights from Seattle to Newcastle International Airport (NCL). Visit Newcastle in January if you'd rather be there when it's quieter.

  • Lock in a Seattle to NCL plane ticket departing in July if you want to visit the city during its warmest month. You can expect temperatures in Newcastle to range from 10ºC (50ºF) to 21ºC (70ºF).

  • If you like traveling in cooler conditions, search for a cheap ticket from Seattle to Newcastle International Airport in January when temperatures are between 0ºC (32ºF) and 7ºC (45ºF).

More about Newcastle

Explore more of the United Kingdom

  • Manchester is just one of the many places in the United Kingdom waiting to be discovered after you've experienced Newcastle. Around 177 kilometers away to the south, check out popular attractions including Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.

  • Around 290 kilometers south of Newcastle, Birmingham is another favorite stop in the United Kingdom. No visit is complete without checking out Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.