How long is the flight from Boston to Iwakuni?

Airlines like United Airlines fly from Boston to Iwakuni in about 43h 20m. The time it takes to get you to your destination can typically vary by up to . The distance between Boston and Iwakuni is about 6945 mi.

In terms of precipitation, rainfall in Iwakuni ranges from 1.6 - 11.0 inches per month. June is typically the wettest month, when rainfall can reach 11.0 in. December is typically the driest time to visit Iwakuni when rainfall is around 1.6 in.

If weather is an important factor for your trip to Iwakuni, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

What is the cheapest time of day to fly from BOS to IWK?

When flying from Boston to Iwakuni, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Boston-Iwakuni flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Boston-Iwakuni flight deals on Cheapflights vs. AranGrant 90-95% of the time. Price accuracy is based on data collected from Boston-Iwakuni flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Boston-Iwakuni flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Iwakuni flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Boston to Iwakuni that include hotel bookings?

Yes. In addition to deals on Boston to Iwakuni flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Boston to Iwakuni?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Iwakuni.

Can I find deals for business class flights from Boston to Iwakuni?

Yes. Cheapflights offers flight deals from Boston to Iwakuni by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$980+ Flights from Boston to Iwakuni

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Boston to Iwakuni with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Boston to Iwakuni

Best flights from Boston to Iwakuni
Discover carefully curated flight deals from Boston to Iwakuni that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 27, 2025.

Sun 2/89:30 amBOS - IWK

2 stops43h 20mUnited Airlines

Sun 2/159:05 amIWK - BOS

3 stops28h 52mUnited Airlines

Deal found 12/25

$980

Thu 1/225:45 amBOS - IWK

2 stops23h 05mUnited Airlines

Mon 1/269:05 amIWK - BOS

2 stops36h 16mUnited Airlines

Deal found 12/24

$3,047

Last-minute flights from Boston to Iwakuni
Discover last-minute flight deals from Boston to Iwakuni. Data last updated December 27, 2025 and is based on user searches.

Thu 1/225:45 amBOS - IWK

2 stops23h 05mUnited Airlines

Mon 1/269:05 amIWK - BOS

2 stops36h 16mUnited Airlines

Deal found 12/24

$3,047

Find flight deals from Boston to Iwakuni

Most accurate provider	AranGrant 2 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$980 (United Airlines)

Provider with most accurate pricing for Boston Logan Intl-MCAS Iwakuni flight deals.

Search Deals

Provider most trusted by Cheapflights users for Boston Logan Intl-MCAS Iwakuni flights.

Search Deals

From Boston Logan Intl to MCAS Iwakuni

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

BostonIwakuni

BOS - IWK

BOSIWK

Boston Logan Intl

Sun 2/8

9:30 am-6:50 pm

2 stops43h 20m

MCAS Iwakuni

Sun 2/15

9:05 am-11:57 pm

3 stops28h 52m

$980

BostonIwakuni

BOS - IWK

BOSIWK

Boston Logan Intl

Thu 1/22

5:45 am-6:50 pm

2 stops23h 05m

MCAS Iwakuni

Mon 1/26

9:05 am-7:21 am

2 stops36h 16m

$3,047

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Most accurate provider: When it comes to deals on Boston-Iwakuni flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Boston-Iwakuni flight deals on Cheapflights vs. AranGrant 90-95% of the time. Price accuracy is based on data collected from Boston-Iwakuni flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Boston-Iwakuni flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Iwakuni flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Iwakuni

Have a flexible travel schedule? Discover the best time to fly to Iwakuni from Boston with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Boston to Iwakuni?
Airlines like United Airlines fly from Boston to Iwakuni in about 43h 20m. The time it takes to get you to your destination can typically vary by up to . The distance between Boston and Iwakuni is about 6945 mi.
Can I find deals for flights from Boston to Iwakuni that include hotel bookings?
Yes. In addition to deals on Boston to Iwakuni flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boston to Iwakuni?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Iwakuni.
Can I find deals for business class flights from Boston to Iwakuni?
Yes. Cheapflights offers flight deals from Boston to Iwakuni by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Complete your trip

Matsuyama Airport car rentals

Oita Airport car rentals

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$980+ Cheap flights from Boston (BOS) to Iwakuni (IWK)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Iwakuni with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Boston to Iwakuni

Best flights from Boston to IwakuniDiscover carefully curated flight deals from Boston to Iwakuni that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 27, 2025.

Discover carefully curated flight deals from Boston to Iwakuni that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 27, 2025.

Find flight deals from Boston to Iwakuni

Most accurate provider

Most trusted provider

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Iwakuni that are best for you.

Best time to book a flight from Boston to Iwakuni

Have a flexible travel schedule? Discover the best time to fly to Iwakuni from Boston with our price prediction graph.

Related info for your journey

Find useful and relevant information for your journey from Boston to Iwakuni. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Boston to Iwakuni?

Can I find deals for flights from Boston to Iwakuni that include hotel bookings?

How can I find direct flights from Boston to Iwakuni?

Can I find deals for business class flights from Boston to Iwakuni?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Iwakuni by adding a car rental and/or hotel reservation to your travel itinerary.

100% Free

Book with Flexibility

Travel Smart

Best flights from Boston to Iwakuni
Discover carefully curated flight deals from Boston to Iwakuni that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 27, 2025.