
Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Osaka (OSA). 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 November 9, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $1,156 (Cathay Pacific) |
One-way from | $596 (Kiwi.com) |
Popular in | April |
Cheapest in | January |
Average price | $1,253 |
Fly from
Fly to
Route
Depart
Return
Washington, D.C.Osaka
DCA Washington, D.C. Reagan-National - KIX Osaka Kansai Intl
DCAKIX
Washington, D.C. Reagan-National
Sat 1/9
6:00 pm-6:40 pm
3 stops34h 40m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
Washington, D.C.Osaka
DCA Washington, D.C. Reagan-National - ITM Osaka Itami
DCAITM
Washington, D.C. Reagan-National
Sat 1/9
6:00 pm-7:00 pm
3 stops35h 00m
Osaka Itami
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
Washington, D.C.Osaka
IAD Washington, D.C. Dulles Intl - KIX Osaka Kansai Intl
IADKIX
Washington, D.C. Dulles Intl
Sat 1/9
5:30 pm-8:55 am
3 stops49h 25m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
Washington, D.C.Osaka
DCA Washington, D.C. Reagan-National - KIX Osaka Kansai Intl
DCAKIX
Washington, D.C. Reagan-National
Thu 12/3
9:30 am-4:55 pm
2 stops41h 25m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
Washington, D.C.Osaka
IAD Washington, D.C. Dulles Intl - KIX Osaka Kansai Intl
IADKIX
Washington, D.C. Dulles Intl
Thu 12/3
6:00 am-6:20 am
2 stops34h 20m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
Washington, D.C.Osaka
IAD Washington, D.C. Dulles Intl - ITM Osaka Itami
IADITM
Washington, D.C. Dulles Intl
Sat 1/9
5:30 pm-7:30 am
2 stops48h 00m
Osaka Itami
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
Washington, D.C.Osaka
IAD Washington, D.C. Dulles Intl - KIX Osaka Kansai Intl
IADKIX
Washington, D.C. Dulles Intl
Thu 12/3
9:20 pm-7:10 pm
1 stop31h 50m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
Washington, D.C.Osaka
DCA Washington, D.C. Reagan-National - KIX Osaka Kansai Intl
DCAKIX
Washington, D.C. Reagan-National
Sat 1/9
5:01 pm-7:10 pm
1 stop36h 09m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
Washington, D.C.Osaka
DCA Washington, D.C. Reagan-National - ITM Osaka Itami
DCAITM
Washington, D.C. Reagan-National
Thu 12/3
8:00 am-7:55 pm
2 stops21h 55m
Osaka Itami
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
Washington, D.C.Osaka
DCA Washington, D.C. Reagan-National - KIX Osaka Kansai Intl
DCAKIX
Washington, D.C. Reagan-National
Thu 12/3
8:30 am-7:10 pm
1 stop20h 40m
Osaka Kansai Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
Everything you need to know about your flight from Washington, D.C. to Osaka
Food
Overall
Entertainment
Boarding
Crew
Comfort
Reviews
Anonymous,Oct 2026
SEA - TPE
Food
Overall
Entertainment
Boarding
Crew
Comfort
Reviews
Anonymous,Oct 2026
SEA - TPE
Food
Overall
Entertainment
Boarding
Crew
Comfort
Reviews
Anonymous,Oct 2026
SEA - TPE
Food
Overall
Entertainment
Boarding
Crew
Comfort
Reviews
Anonymous,Oct 2026
SEA - TPE
Food
Overall
Entertainment
Boarding
Crew
Comfort
Reviews
Anonymous,Oct 2026
SEA - TPE
Find useful and relevant information for your journey from Washington, D.C. to Osaka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$964 | Average$1,279 | FlexibilityNo cancel fee | On-time80% |