Cheap flights from Newark Airport to Seattle from £140
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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — SEA
17 Sep — 24 Sep1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Newark to Seattle/Tacoma Intl are usually found in October or January, booked 28 days in advance, depart on a Monday or Tuesday and return on a Monday
Cheap flight deals from Newark to Seattle
Enter your travel dates to find the best prices.
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Best
Direct
Last-minute
One-way
Cheapest flights from Newark to Seattle
Explore the most affordable flight options available from Newark to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 August 2026.
Wed 21/1007:03 -
Nonstop6h 12m
Tue 27/1009:58 -
Nonstop5h 31m
Deal found 18/8£243
Fri 9/1015:18 -
Nonstop6h 01m
Sun 11/1007:00 -
Nonstop5h 22m
Deal found 17/8£249
Wed 30/907:20 -
Nonstop6h 02m
Wed 30/912:30 -
1 stop7h 59m
Deal found 16/8£253
Wed 4/1118:17 -
Nonstop6h 22m
Wed 11/1108:30 -
1 stop8h 30m
Deal found 17/8£253
Sat 26/907:20 -
Nonstop6h 02m
Sat 3/1008:08 -
Nonstop5h 35m
Deal found 18/8£256
Mon 19/1009:30 -
Nonstop6h 05m
Tue 20/1009:58 -
Nonstop5h 31m
Deal found 15/8£258
Sat 26/907:25 -
1 stop9h 57m
Sat 26/923:14 -
1 stop7h 43m
Deal found 14/8£260
Wed 28/1007:03 -
Nonstop6h 12m
Sun 1/1107:35 -
Nonstop5h 26m
Deal found 18/8£262
Sat 26/907:15 -
1 stop10h 35m
Mon 28/923:59 -
1 stop7h 28m
Deal found 14/8£264
Wed 18/1119:29 -
Nonstop6h 13m
Mon 23/1107:35 -
Nonstop5h 26m
Deal found 18/8£264
Mon 19/1009:30 -
Nonstop6h 05m
Mon 19/1022:40 -
Nonstop5h 19m
Deal found 15/8£265
Sat 5/1216:00 -
Nonstop6h 17m
Tue 8/1207:35 -
Nonstop5h 26m
Deal found 16/8£266
Best flights from Newark to Seattle
Discover carefully curated flight deals from Newark to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 August 2026.
Tue 20/1006:00 -
1 stop8h 00m
Wed 21/1006:00 -
1 stop8h 56m
Deal found 15/8£264
Thu 1/1006:55 -
1 stop8h 55m
Tue 6/1008:08 -
Nonstop5h 35m
Deal found 13/8£271
Sat 19/920:25 -
Nonstop6h 11m
Mon 28/922:48 -
Nonstop5h 12m
Deal found 13/8£330
Sun 6/907:15 -
1 stop10h 35m
Tue 15/911:45 -
1 stop8h 30m
Deal found 16/8£264
Fri 8/117:05 -
Nonstop6h 18m
Sun 10/123:10 -
1 stop14h 03m
Deal found 14/8£287
Sat 26/906:15 -
1 stop9h 43m
Tue 29/923:05 -
1 stop6h 36m
Deal found 16/8£264
Tue 1/906:00 -
1 stop7h 31m
Wed 23/917:50 -
1 stop9h 10m
Deal found 14/8£279
Fri 18/917:02 -
1 stop19h 18m
Sun 27/922:01 -
Nonstop5h 29m
Deal found 16/8£310
Wed 21/1016:35 -
1 stop22h 53m
Tue 27/1009:58 -
Nonstop5h 31m
Deal found 18/8£310
Sat 29/816:29 -
1 stop8h 36m
Tue 1/905:30 -
1 stop7h 29m
Deal found 14/8£293
Tue 15/907:20 -
Nonstop6h 02m
Tue 22/917:59 -
1 stop18h 31m
Deal found 18/8£315
Tue 1/909:00 -
Nonstop6h 02m
Tue 15/916:59 -
1 stop19h 31m
Deal found 15/8£330
Direct flights from Newark to Seattle
Explore direct flight options from Newark to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 August 2026.
Wed 21/1007:03 -
Nonstop6h 12m
Tue 27/1009:58 -
Nonstop5h 31m
Deal found 18/8£243
Fri 9/1018:44 -
Nonstop6h 11m
Tue 13/1013:00 -
Nonstop5h 30m
Deal found 17/8£249
Sat 26/907:20 -
Nonstop6h 02m
Mon 5/1022:40 -
Nonstop5h 19m
Deal found 18/8£256
Mon 19/1009:30 -
Nonstop6h 05m
Tue 20/1009:58 -
Nonstop5h 31m
Deal found 15/8£258
Wed 28/1007:03 -
Nonstop6h 12m
Sun 1/1107:35 -
Nonstop5h 26m
Deal found 18/8£262
Thu 5/1116:00 -
Nonstop6h 17m
Mon 9/1110:30 -
Nonstop5h 26m
Deal found 14/8£264
Wed 18/1119:29 -
Nonstop6h 13m
Mon 23/1107:35 -
Nonstop5h 26m
Deal found 18/8£264
Mon 19/1009:30 -
Nonstop6h 05m
Mon 19/1022:40 -
Nonstop5h 19m
Deal found 15/8£265
Sat 5/1216:00 -
Nonstop6h 17m
Tue 8/1207:35 -
Nonstop5h 26m
Deal found 16/8£266
Sun 6/915:40 -
Nonstop6h 01m
Sat 12/922:58 -
Nonstop5h 12m
Deal found 14/8£267
Mon 28/907:20 -
Nonstop6h 02m
Mon 5/1022:40 -
Nonstop5h 19m
Deal found 14/8£269
Last-minute flights from Newark to Seattle
Discover last-minute flight deals from Newark to Seattle. Data last updated 18 August 2026 and is based on user searches.
Sun 6/920:33 -
Nonstop6h 11m
Sat 12/922:58 -
Nonstop5h 12m
Deal found 13/8£267
Thu 10/915:40 -
Nonstop6h 01m
Thu 17/915:34 -
Nonstop5h 25m
Deal found 13/8£270
Tue 15/920:25 -
Nonstop6h 11m
Tue 22/922:58 -
Nonstop5h 12m
Deal found 18/8£249
Sat 19/915:45 -
Nonstop6h 01m
Sun 20/1223:15 -
Nonstop5h 13m
Deal found 16/8£264
Mon 21/920:25 -
Nonstop6h 11m
Wed 23/908:40 -
1 stop7h 55m
Deal found 17/8£253
Sat 26/907:20 -
Nonstop6h 02m
Sat 3/1008:08 -
Nonstop5h 35m
Deal found 18/8£256
Sat 26/907:25 -
1 stop9h 57m
Sat 26/923:14 -
1 stop7h 43m
Deal found 14/8£260
Mon 28/907:20 -
Nonstop6h 02m
Mon 5/1022:40 -
Nonstop5h 19m
Deal found 14/8£269
Mon 28/906:55 -
1 stop8h 55m
Sat 3/1008:08 -
Nonstop5h 35m
Deal found 18/8£271
Wed 30/907:20 -
Nonstop6h 02m
Wed 30/912:30 -
1 stop7h 59m
Deal found 16/8£253
One-way flights from Newark to Seattle
Search for one-way flight options from Newark to Seattle. Find affordable one-way fares based on user searches. Data last updated 18 August 2026.
Tue 1/907:59 -
Nonstop6h 04m
Deal found 18/8£140
Sun 10/109:00 -
Nonstop6h 17m
Deal found 17/8£140
Tue 8/906:55 -
1 stop7h 50m
Deal found 18/8£143
Sun 20/920:25 -
Nonstop6h 11m
Deal found 18/8£144
Fri 11/907:20 -
Nonstop6h 02m
Deal found 13/8£145
Wed 2/906:55 -
1 stop8h 55m
Deal found 18/8£147
Mon 21/906:55 -
1 stop8h 55m
Deal found 17/8£148
Wed 25/1117:30 -
1 stop18h 59m
Deal found 14/8£151
Sun 18/1007:03 -
Nonstop6h 12m
Deal found 13/8£154
Fri 28/816:35 -
1 stop10h 05m
Deal found 14/8£154
Sun 13/907:59 -
Nonstop6h 04m
Deal found 17/8£155
Find flight deals from Newark to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Newark (EWR) to Seattle (SEA). 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 18 August 2026.
Customise your flight search to find flights from Newark to Seattle 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 858,174 searches. Data last updated 18 August 2026.
Use the filters below to find and compare flights from Newark Airport to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
NewarkSeattle
EWR Newark - SEA Seattle/Tacoma Intl
EWRSEA
Newark
Tue 20/10
06:00-11:00
1 stop8h 00m
Seattle/Tacoma Intl
Wed 21/10
06:00-17:56
1 stop8h 56m
£264
NewarkSeattle
EWR Newark - SEA Seattle/Tacoma Intl
EWRSEA
Newark
Sun 6/9
07:15-14:50
1 stop10h 35m
Seattle/Tacoma Intl
Tue 15/9
11:45-23:15
1 stop8h 30m
£264
NewarkSeattle
EWR Newark - SEA Seattle/Tacoma Intl
EWRSEA
Newark
Sat 26/9
06:15-12:58
1 stop9h 43m
Seattle/Tacoma Intl
Tue 29/9
23:05-08:41
1 stop6h 36m
£264
NewarkSeattle
EWR Newark - SEA Seattle/Tacoma Intl
EWRSEA
Newark
Thu 1/10
06:55-12:50
1 stop8h 55m
Seattle/Tacoma Intl
Tue 6/10
08:08-16:43
Nonstop5h 35m
£271
NewarkSeattle
EWR Newark - SEA Seattle/Tacoma Intl
EWRSEA
Newark
Tue 1/9
06:00-10:31
1 stop7h 31m
Seattle/Tacoma Intl
Wed 23/9
17:50-06:00
1 stop9h 10m
£279
NewarkSeattle
EWR Newark - SEA Seattle/Tacoma Intl
EWRSEA
Newark
Fri 8/1
17:05-20:23
Nonstop6h 18m
Seattle/Tacoma Intl
Sun 10/1
23:10-16:13
1 stop14h 03m
£287
NewarkSeattle
EWR Newark - SEA Seattle/Tacoma Intl
EWRSEA
Newark
Sat 29/8
16:29-22:05
1 stop8h 36m
Seattle/Tacoma Intl
Tue 1/9
05:30-15:59
1 stop7h 29m
£293
NewarkSeattle
EWR Newark - SEA Seattle/Tacoma Intl
EWRSEA
Newark
Fri 18/9
17:02-09:20
1 stop19h 18m
Seattle/Tacoma Intl
Sun 27/9
22:01-06:30
Nonstop5h 29m
£310
NewarkSeattle
EWR Newark - SEA Seattle/Tacoma Intl
EWRSEA
Newark
Wed 21/10
16:35-12:28
1 stop22h 53m
Seattle/Tacoma Intl
Tue 27/10
09:58-18:29
Nonstop5h 31m
£310
NewarkSeattle
EWR Newark - SEA Seattle/Tacoma Intl
EWRSEA
Newark
Tue 15/9
07:20-10:22
Nonstop6h 02m
Seattle/Tacoma Intl
Tue 22/9
17:59-15:30
1 stop18h 31m
£315
Flights are sorted by cheapest return flights first.
Deals found on 18/8
Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Newark to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Newark with our price prediction graph.
EWR-SEA
Estimated return 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 Newark Airport to Seattle
Prices
Airlines
Delays
How far ahead should I book a flight from Newark Airport to Seattle?
To ensure you get the cheapest price possible for a flight from Newark Airport to Seattle, you should look to book at least 27 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Newark Airport to Seattle?
Currently, October is the cheapest month in which you can book a flight from Newark Airport to Seattle (average of £219). Flying from Newark Airport to Seattle in August is currently the most expensive (average of £400). 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.
What is the cheapest time of day to fly from EWR to SEA?
Find hourly flight availability from Newark to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 August 2026.
When flying from Newark Airport to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost for a return flight from Newark Airport to Seattle?
Airfare is below average for this route at the moment.
Newark Airport to Seattle flights typically cost between £316 and £491 in October.The cheapest return price found within the last 5 days was £243 on Alaska Airlines (21 Oct–27 Oct).
Weekly flight availability from Newark Airport to Seattle
Explore weekly flight availability from Newark to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 August 2026.
The most flights from EWR to SEA are scheduled on a Monday (12 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (3 on average).
How often are flights from Newark to Seattle delayed?
About 18% of weekly flights between Newark and Seattle have experienced delays in the past year, with the average delay time being 178 minutes.
What is the most punctual flight time for Newark to Seattle flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Newark to Seattle flights?
Over the past year, United Airlines have had the lowest number of delays on this route, with just 17% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from Newark to Seattle. 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 Seattle from Newark?
Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Newark. On average, Seattle/Tacoma Intl has 5 inbound flights from Newark per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.
How long is the flight from Newark Airport to Seattle?
There are many flights that can get you from Newark Airport to Seattle in 8h. Fly via Delta or Alaska Airlines to get the fastest option. Airlines will cover a distance of 2393 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the most reliable airlines from Newark Airport to Seattle?
The top 3 most reliable airlines when flying from Newark Airport to Seattle are American Airlines (82%), Japan Airlines (82%) and Alaska Airlines (75%).
Can I find deals for flights from Newark to Seattle that include hotel bookings?
Yes. In addition to deals on Newark to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Newark to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Newark to Seattle.
Can I find deals for business class flights from Newark to Seattle?
Yes. Cheapflights offers flight deals from Newark to Seattle 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 Newark Airport to Seattle?
Currently, October is the cheapest month in which you can book a flight from Newark Airport to Seattle (average of £219). Flying from Newark Airport to Seattle in August is currently the most expensive (average of £400). 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.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 August 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Newark to Seattle?
Cheapflights helps you search for flights from Newark to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Newark to Seattle?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Newark.
Can Cheapflights find flights from Newark to Seattle with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Newark to Seattle, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Newark to Seattle become cheaper?
Yes! Start tracking prices for Newark to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.
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