$698 Cheap Flights from Washington (IAD) to Iwakuni (IWK)

View $698 flight on Sun, Nov 23, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Iwakuni Airport (IWK)

Cheap Flights from Washington to Iwakuni (IAD-IWK)

Prices were available within the past 7 days and start at $698 for one-way flights and $1,220 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

All Nippon Airways
Wed, Dec 3 - Sun, Dec 14
IAD
Washington
IWK
Iwakuni
$1,220 Roundtrip, found 6 days ago
$1,220
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Wed, Dec 3 from Washington to Iwakuni, returning Sun, Dec 14, priced at $1,220 found 6 days ago
All Nippon Airways
Wed, Dec 3 - Sun, Dec 14
IAD
Washington
IWK
Iwakuni
$1,224 Roundtrip, found 6 days ago
$1,224
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Wed, Dec 3 from Washington to Iwakuni, returning Sun, Dec 14, priced at $1,224 found 6 days ago
All Nippon Airways
Wed, Dec 3 - Sun, Dec 14
IAD
Washington
IWK
Iwakuni
$1,267 Roundtrip, found 6 days ago
$1,267
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Wed, Dec 3 from Washington to Iwakuni, returning Sun, Dec 14, priced at $1,267 found 6 days ago
All Nippon Airways
Wed, Dec 3 - Sun, Dec 14
IAD
Washington
IWK
Iwakuni
$1,271 Roundtrip, found 6 days ago
$1,271
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Wed, Dec 3 from Washington to Iwakuni, returning Sun, Dec 14, priced at $1,271 found 6 days ago
All Nippon Airways
Mon, Apr 20 - Mon, Apr 27
IAD
Washington
IWK
Iwakuni
$1,379 Roundtrip, found 1 hour ago
$1,379
Roundtrip
found 1 hour ago
Select All Nippon Airways flight, departing Mon, Apr 20 from Washington to Iwakuni, returning Mon, Apr 27, priced at $1,379 found 1 hour ago
All Nippon Airways
Wed, Dec 3 - Sun, Dec 14
IAD
Washington
IWK
Iwakuni
$1,420 Roundtrip, found 6 days ago
$1,420
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Wed, Dec 3 from Washington to Iwakuni, returning Sun, Dec 14, priced at $1,420 found 6 days ago
All Nippon Airways
Wed, Dec 3 - Sun, Dec 14
IAD
Washington
IWK
Iwakuni
$1,424 Roundtrip, found 6 days ago
$1,424
Roundtrip
found 6 days ago
Select All Nippon Airways flight, departing Wed, Dec 3 from Washington to Iwakuni, returning Sun, Dec 14, priced at $1,424 found 6 days ago
Air Canada
Wed, Dec 3 - Sun, Dec 14
IAD
Washington
IWK
Iwakuni
$1,485 Roundtrip, found 6 days ago
$1,485
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, Dec 3 from Washington to Iwakuni, returning Sun, Dec 14, priced at $1,485 found 6 days ago
United
Fri, Mar 20 - Sat, Mar 28
IAD
Washington
IWK
Iwakuni
$1,623 Roundtrip, found 6 hours ago
$1,623
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Mar 20 from Washington to Iwakuni, returning Sat, Mar 28, priced at $1,623 found 6 hours ago
Korean Air
Fri, Mar 20 - Sat, Mar 28
IAD
Washington
IWK
Iwakuni
$1,836 Roundtrip, found 6 hours ago
$1,836
Roundtrip
found 6 hours ago
Select Korean Air flight, departing Fri, Mar 20 from Washington to Iwakuni, returning Sat, Mar 28, priced at $1,836 found 6 hours ago

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Iwakuni Airport (IWK) cost?
Grab a cheap one-way flight from $698 or cheap return flight from $1,220 from Washington Dulles Intl. Airport (IAD) to Iwakuni Airport (IWK) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Iwakuni Airport (IWK)?
December is the least expensive month to fly from IAD to IWK. Traveling outside of peak seasons is often the key to scoring lower fares.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Iwakuni Airport (IWK)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from IAD to IWK. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Iwakuni Airport (IWK)?
There aren't any daily direct flights available from Washington Dulles Intl. Airport (IAD) to Iwakuni Airport (IWK). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from IAD to IWK?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change depending on a number of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Iwakuni Airport (IWK)?
Choose a flight from Washington Dulles Intl. Airport (IAD) to Iwakuni Airport (IWK) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Iwakuni Airport (IWK) last-minute?
Booking your plane ticket from IAD to IWK right before your journey is generally more expensive. But if there's some wiggle room with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book an IAD to IWK flight and hotel package?
You can save money by booking an IAD to IWK flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've chosen your preferred accommodations and flights, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Iwakuni Airport (IWK)?
If you booked your IAD to IWK flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Iwakuni
Roundtrip price
$1,219
Distance
7039 mi

Book with confidence

Washington to Iwakuni Flights

The cheapest times to fly from Washington to Iwakuni

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Iwakuni are during the month of December. You can find some of the cheapest flights from Washington to Iwakuni with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Iwakuni

Sunday is one of the best days to book for cheap flights from Washington to Iwakuni: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Iwakuni

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Iwakuni in 2025. You can also book with separate airlines for your outbound and return journeys, from $698 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Iwakuni flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Iwakuni airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Iwakuni Flights

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*Available to One Key members.