Plan to arrive at SEA at least two hours before your flight. Use SEA Spot Saver for security screening appointments to reduce wait times.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $604 (CrystalTravel) |
One-way from | $336 (Cheapflightsfares) |
Popular in | June |
Cheapest in | January |
Average price | $1,152 |
Good round-trip deal | $697 or less |
Good one-way deal | $395 or less |
Fly from
Fly to
Route
Depart
Return
Price
SeattleTokyo
SEA - NRT
SEANRT
Seattle/Tacoma Intl
Thu 1/8
6:03 am-3:00 pm
1 stop15h 57m
Tokyo Narita
Sat 1/24
5:35 pm-4:29 pm
1 stop15h 54m
SeattleTokyo
SEA - NRT
SEANRT
Seattle/Tacoma Intl
Thu 1/1
5:00 am-3:00 pm
1 stop17h 00m
Tokyo Narita
Sat 1/17
5:35 pm-11:47 pm
1 stop23h 12m
SeattleTokyo
SEA - NRT
SEANRT
Seattle/Tacoma Intl
Thu 1/29
6:18 am-3:00 pm
1 stop15h 42m
Tokyo Narita
Sat 2/7
5:00 pm-9:12 pm
2 stops21h 12m
SeattleTokyo
SEA - NRT
SEANRT
Seattle/Tacoma Intl
Mon 1/19
6:03 am-3:00 pm
1 stop15h 57m
Tokyo Narita
Mon 1/26
5:35 pm-9:12 pm
2 stops20h 37m
SeattleTokyo
SEA - NRT
SEANRT
Seattle/Tacoma Intl
Mon 2/16
11:00 am-7:30 pm
1 stop15h 30m
Tokyo Narita
Mon 6/22
9:20 am-10:50 am
1 stop17h 30m
SeattleTokyo
SEA - NRT
SEANRT
Seattle/Tacoma Intl
Fri 2/6
7:15 am-9:05 pm
2 stops20h 50m
Tokyo Narita
Wed 2/25
5:10 pm-9:00 am
1 stop32h 50m
SeattleTokyo
SEA - NRT
SEANRT
Seattle/Tacoma Intl
Thu 1/22
7:15 am-9:05 pm
2 stops20h 50m
Tokyo Narita
Fri 2/27
9:15 am-9:00 am
1 stop16h 45m
SeattleTokyo
SEA - NRT
SEANRT
Seattle/Tacoma Intl
Sat 1/24
7:15 am-9:05 pm
2 stops20h 50m
Tokyo Narita
Mon 2/23
5:10 pm-9:00 am
1 stop32h 50m
SeattleTokyo
SEA - NRT
SEANRT
Seattle/Tacoma Intl
Fri 1/30
7:15 am-9:05 pm
2 stops20h 50m
Tokyo Narita
Thu 2/12
9:15 am-9:00 am
1 stop16h 45m
SeattleTokyo
SEA - NRT
SEANRT
Seattle/Tacoma Intl
Sat 3/7
11:00 am-7:30 pm
1 stop15h 30m
Tokyo Narita
Wed 3/18
2:00 pm-10:00 am
1 stop36h 00m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star |
To ensure you get the cheapest price possible for a flight from Seattle to Tokyo Narita Airport, you should look to book at least 25 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.
Currently, February is the cheapest month in which you can book a flight from Seattle to Tokyo Narita Airport (average of $589). Flying from Seattle to Tokyo Narita Airport in June is currently the most expensive (average of $907). 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.
It’s typically best to fly out from Seattle to Tokyo Narita Airport in the morning. Doing so could potentially save you 27% on the flight price compared to flying in the afternoon, which is usually more expensive.
Travelers seeking maximum savings on their Seattle to Tokyo Narita Airport flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
About 21% of weekly flights between Seattle and Tokyo have experienced delays in the past year, with the average delay time being 104 minutes.
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
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.
Over the last year, Japan Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.
Taipei City (TPE) – chosen by Cheapflights users on 57% of 1-stop itineraries from Seattle to Tokyo Narita Airport on Cheapflights.
Incheon (ICN) is the most affordable 1-stop option, with an average round-trip price of $701.
Flights via Vancouver (YVR) have the shortest average one-way travel time for 1-stop routes: 12h 25m.
Flights via Vancouver (YVR) offer the fastest connection on this route, with an average layover time of 2h 14m.
Food
Boarding
Crew
Comfort
Overall
Entertainment
Reviews
Anonymous,Nov 2025
BKK - NRT
Food
Boarding
Crew
Comfort
Overall
Entertainment
Reviews
Anonymous,Nov 2025
BKK - NRT
Food
Boarding
Crew
Comfort
Overall
Entertainment
Reviews
Anonymous,Nov 2025
BKK - NRT
Food
Boarding
Crew
Comfort
Overall
Entertainment
Reviews
Anonymous,Nov 2025
BKK - NRT
Food
Boarding
Crew
Comfort
Overall
Entertainment
Reviews
Anonymous,Nov 2025
BKK - NRT
Food
Boarding
Crew
Comfort
Overall
Entertainment
Reviews
Anonymous,Nov 2025
BKK - NRT
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$589 | Average$894 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$631 | Average$779 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$662 | Average$905 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$669 | Average$949 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$682 | Average$968 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$692 | Average$954 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$704 | Average$798 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$716 | Average$1,106 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$723 | Average$955 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$799 | Average$1,201 | FlexibilityNo cancel fee | On-time71% |