For afternoon departures, expect crowded check-in areas at IAD. Arrive early to navigate the busy terminal efficiently.

Most accurate provider | eDreams 3 stars  | 
|---|---|
Most trusted provider | Gurufare 3 stars  | 
Round-trip from | $1,070 (Expedia)  | 
One-way from | $532 (Kiwi.com)  | 
Popular in | December | 
Cheapest in | January | 
Average price | $1,307 | 
Good round-trip deal | $1,216 or less | 
Good one-way deal | $663 or less | 
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Tokyo
IAD - NRT
IADNRT
Washington, D.C. Dulles Intl
Tue 4/21
8:15 am-2:30 pm
1 stop17h 15m
Tokyo Narita
Fri 5/1
5:15 pm-8:33 pm
1 stop16h 18m
Washington, D.C.Tokyo
IAD - NRT
IADNRT
Washington, D.C. Dulles Intl
Tue 1/6
7:45 pm-3:00 pm
1 stop29h 15m
Tokyo Narita
Wed 1/21
5:35 pm-7:21 pm
1 stop15h 46m
Washington, D.C.Tokyo
IAD - HND
IADHND
Washington, D.C. Dulles Intl
Mon 11/24
6:00 am-3:20 pm
2 stops19h 20m
Tokyo Haneda
Tue 12/9
5:20 pm-11:08 pm
2 stops19h 48m
Washington, D.C.Tokyo
IAD - NRT
IADNRT
Washington, D.C. Dulles Intl
Sun 1/18
7:49 pm-9:05 pm
2 stops35h 16m
Tokyo Narita
Mon 2/2
8:40 pm-9:50 am
1 stop27h 10m
Washington, D.C.Tokyo
IAD - HND
IADHND
Washington, D.C. Dulles Intl
Mon 4/6
12:10 pm-3:25 pm
Nonstop14h 15m
Tokyo Haneda
Wed 4/15
12:30 am-5:15 am
1 stop17h 45m
Washington, D.C.Tokyo
IAD - HND
IADHND
Washington, D.C. Dulles Intl
Sat 4/4
2:36 pm-5:00 am
1 stop25h 24m
Tokyo Haneda
Fri 4/17
12:30 am-6:45 am
1 stop19h 15m
Washington, D.C.Tokyo
IAD - HND
IADHND
Washington, D.C. Dulles Intl
Mon 4/6
6:00 am-4:15 pm
2 stops21h 15m
Tokyo Haneda
Mon 4/20
3:15 pm-12:09 am
2 stops21h 54m
Washington, D.C.Tokyo
IAD - HND
IADHND
Washington, D.C. Dulles Intl
Sun 12/28
12:20 pm-4:50 pm
Nonstop14h 30m
Tokyo Haneda
Thu 1/22
4:50 pm-3:40 pm
Nonstop12h 50m
Washington, D.C.Tokyo
IAD - HND
IADHND
Washington, D.C. Dulles Intl
Wed 4/1
12:15 pm-3:20 pm
Nonstop14h 05m
Tokyo Haneda
Sun 4/12
10:40 am-7:04 pm
1 stop21h 24m
Washington, D.C.Tokyo
IAD - HND
IADHND
Washington, D.C. Dulles Intl
Sun 1/18
11:10 am-3:30 pm
Nonstop14h 20m
Tokyo Haneda
Sat 1/31
12:50 am-5:24 am
1 stop18h 34m
| 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*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | 
The best time to book flights from Washington, D.C. Dulles Intl Airport to Tokyo is 52 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Tokyo (average of $292). Flying from Washington, D.C. Dulles Intl Airport to Tokyo in June is currently the most expensive (average of $1,238). 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.
A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Tokyo in the afternoon. If you’re flexible enough to do this you can expect to save up to 16% on your trip compared to booking a flight in the morning.
Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Tokyo flight should consider departing on Thursday afternoons when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from IAD to TYO are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).
Montreal (YUL) – chosen by Cheapflights users on 55% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Tokyo on Cheapflights.
Montreal (YUL) is the most affordable 1-stop option, with an average round-trip price of $984.
Flights via Montreal (YUL) have the shortest average one-way travel time for 1-stop routes: 17h 03m.
Flights via Montreal (YUL) offer the fastest connection on this route, with an average layover time of 1h 45m.
Comfort
Food
Entertainment
Crew
Overall
Boarding
Reviews
Julie,Sep 2025
CGK - HND
Comfort
Food
Entertainment
Crew
Overall
Boarding
Reviews
Julie,Sep 2025
CGK - HND
Comfort
Food
Entertainment
Crew
Overall
Boarding
Reviews
Julie,Sep 2025
CGK - HND
Comfort
Food
Entertainment
Crew
Overall
Boarding
Reviews
Julie,Sep 2025
CGK - HND
Comfort
Food
Entertainment
Crew
Overall
Boarding
Reviews
Julie,Sep 2025
CGK - HND
Comfort
Food
Entertainment
Crew
Overall
Boarding
Reviews
Julie,Sep 2025
CGK - HND
| Airline | Cheapest | Average | Flexibility | On-time | 
|---|---|---|---|---|
| Cheapest$236 | Average$1,484 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$327 | Average$1,613 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$630 | Average$924 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$826 | Average$1,664 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$871 | Average$1,343 | FlexibilityNo cancel fee | On-time67% |