Seattle, WA SEA to Osaka OSA flight with Asiana

Sat, Mar 21
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Asiana
Ryanair
KM Malta Airlines
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2,000+ travel companies
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Journey information

Overview: Seattle, WA to Osaka flight

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JapanJapan
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Flights from Seattle, WA to Osaka depart on average 60 times per day, taking around 13h 45m. Cheap flight tickets for this journey start at $677 (€551) if you book in advance.

The earliest flight runs at 05:30, the last at 20:45. The fastest flight covers the 4997 miles (8043 km) distance in 16h 40m. August is the cheapest month to fly.

Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Distance
4997 miles (8043 km)
Average flight duration
13h 45m
Cheapest ticket price
$677 (€551)
Flights per day
60
Fastest flight
16h 40m
First flight
05:30
Last flight
20:45
Cheapest month
Aug
Cheapest day
Tue
High season
Jul - Sep
Low season
Jul - Sep
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information

Compare prices and tickets Seattle, WA to Osaka by flight

Compare flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.

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Why should you book Seattle, WA to Osaka flights with Omio?

Asiana operates all flights services from Seattle, WA to Osaka.
Omio is an official ticket reseller for all your travel options from Seattle, WA to Osaka.

Why book with Omio vs Asiana?

  • Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.

Airlines: Asiana from Seattle, WA to OsakaFind the best flights between Seattle, WA to Osaka with Omio's travel partners Asiana from $677 (€551). We can find you the best deals, schedules and tickets when comparing and booking the best trip.

Asiana

About
Asiana Airlines, established in 1988, is one of South Korea's major airlines, headquartered in Seoul. It operates both international and domestic passenger routes, as well as cargo services, across Asia, Europe, North America, and Oceania. Asiana Airlines is a member of the Star Alliance, offering passengers a wide network and the ability to earn and redeem miles with partner airlines. The airline focuses on customer satisfaction through safety and service, offering various cabin experiences and in-flight amenities. Asiana Airlines maintains its international hub at Incheon International Airport and a domestic hub at Gimpo International Airport.
Luggage & cancellation policy
Asiana frequency
7 a day
Luggage included
1 piece of carry-on baggage (10kg) and 1 checked baggage (23kg) included in economy
Additional luggage
Additional baggage can be purchased, fees vary by route
Cancellation Policy
Refunds available depending on fare type, cancellation fees apply. Some tickets non-refundable.
Pregnant on board
Passengers can fly up to 36 weeks for single pregnancies and 32 weeks for multiple pregnancies. Medical certificate required after 28 weeks
Unaccompagned minor
Children aged 5-11 can travel as unaccompanied minors with mandatory assistance. Service must be booked at least 48h in advance
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
Asiana provides wheelchair assistance and special services for passengers with disabilities. Request must be made 48h before departure.
Entertaiment on board

FAQs: Seattle, WA to Osaka Flight

Find answers to the most common questions about traveling from Seattle, WA to Osaka by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at Osaka, this guide helps you travel smarter and with confidence.

FAQs
Cheap plane tickets from Seattle, WA to Osaka can start from as little as $677 (€551) when you book in advance. The average flight ticket price for Seattle, WA to Osaka is $677 (€551) ; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by plane from Seattle, WA to Osaka is 16h 40m to travel the 4997 miles (8043 km) long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest flight from Seattle, WA to Osaka leaves at 5:30 AM. Plan your trip with the Journey Planner from Omio.
The latest flight from Seattle, WA to Osaka leaves at 8:45 PM.
There are 60 flights a day from Seattle, WA to Osaka which require at least one change with Asiana. Schedules can vary on holidays or weekends with fewer flights.
When taking a flight from Seattle, WA to Osaka, you can count on Asiana for the best way to get you to Osaka. You can also check all possible airlines who offer a service between Seattle, WA and Osaka and compare the amenities they offer before buying a plane ticket.
Flights from Seattle, WA to Osaka generally leave from Seattle-Tacoma International Airport and arrive in Osaka Kansai.Seattle-Tacoma International Airport is away from Seattle, WA city centre and Osaka Kansai is 5 miles (9 km) from Osaka city centre.
The cheapest month for a flight from Seattle, WA to Osaka is August.
Yes, you can take a flight between Seattle, WA and Osaka.
Since neither Seattle, WA nor Osaka are in the Schengen Area, passport requirements depend on the specific immigration rules of United States and Japan. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
There is a time difference of 17 h in winter and 16 h in summer between Seattle, WA and Osaka.
The best events to attend in Osaka include:
  • Gion Matsuri, a month-long festival featuring parades and traditional events
  • Tenjin Matsuri, one of Japan's top three festivals with boat processions and fireworks
  • Osaka Castle Illuminage, a stunning light display set against the backdrop of Osaka Castle
  • Sumiyoshi Taisha Grand Festival, a traditional celebration with ancient rituals and performances.
The best holidays to experience in Osaka include:
  • New Year’s Day, a time for family gatherings and traditional celebrations
  • Golden Week (April 29 - May 5), a series of national holidays that attract many visitors and offer various local events
  • Obon (mid-August), a period for honoring ancestors with traditional dances and ceremonies.
The best season to visit Osaka is Spring or Fall. The best weather to explore Osaka is during March-May or September-November.
For international flights we recommend to arrive 2.5 to 3 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.
Most airlines permit carry-on bags that fit within specific dimensions (e.g., 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.
Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs). Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you. Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.

popular airports

Popular airports from Seattle, WA to Osaka

Seattle
Osaka
The major airport for departures in Seattle is Seattle-Tacoma International Airport. Find all the information you need to know about services, amenities and connections at Seattle-Tacoma International Airport for your trip from Seattle to Osaka.
Amenities at airport
WifiWifi
ShoppingShopping
ParkingParking
DiningDining
ATMATM
TaxisTaxis
AccessibilityAccessibility
WCWC
HotelHotel
ShowerShower
LoungeLounge
Lost and Found OfficeLost and Found Office
Car RentalCar Rental
information
carConnection
Car connection
I-5, Exit 154B
Wifi
Wifi
  • Free Wi-Fi available throughout the airport.
Shopping
Shopping
  • Shops include duty-free, Hudson News, and local specialty stores, located in the main terminal and concourses.
Parking
Parking
  • Parking available in the General Parking area, approximately 4.7€ ($5) per hour.
Dining
Dining
  • Restaurants are available, including fast food and sit-down options like McDold's and Beecher's Handmade Cheese.
Taxis
Taxis
  • Available outside the terminal.
Accessibility
Accessibility
  • Elevators, ramps
WC
WC
  • Available throughout the airport, near gates and in main terminal areas.
Hotel
Hotel
  • Hotels within walking distance, such as the Seattle Airport Marriott and Hilton Seattle Airport.
Shower
Shower
  • Showers are available at The Club at SEA lounges, typically included in lounge access fees.
Lounge
Lounge
  • Lounges include The Club at SEA and Delta Sky Club, offering amenities like scks and showers.
Lost and Found Office
Lost and Found Office
  • Lost and Found located on the baggage claim level, near carousel 13.
Car Rental
Car Rental
  • Car rental services are available at the Rental Car Facility, accessible via a free shuttle from the terminal.
Public transit options for Seattle-Tacoma International Airport
  • Link Light Rail, SeaTac/Airport Station, 40 minutes

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