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.

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.

$1,132+ Flights from Boston to Iwakuni

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Cheap flight deals from Boston to Iwakuni

Round-trip from	$1,132 (United Airlines)

From Boston Logan Intl to MCAS Iwakuni

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Find flight deals from Boston to Iwakuni

Cheapest flights from Boston to Iwakuni
Explore the most affordable flight options available from Boston to Iwakuni. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

Sun 9/146:10 amBOS - IWK

2 stops47h 35mUnited Airlines

Thu 9/188:55 amIWK - BOS

2 stops23h 00mUnited Airlines

Deal found 6/29

$1,132

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 July 2, 2025.

Sun 9/146:10 amBOS - IWK

2 stops47h 35mUnited Airlines

Thu 9/188:55 amIWK - BOS

2 stops23h 00mUnited Airlines

Deal found 6/29

$1,132

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BostonIwakuni

BOS - IWK

BOSIWK

Boston Logan Intl

Sun 9/14

6:10 am-6:45 pm

2 stops47h 35m

MCAS Iwakuni

Thu 9/18

8:55 am-6:55 pm

2 stops23h 00m

$1,132

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

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.

Reviews of airlines servicing Iwakuni

See what other customers who have flown with United Airlines from Boston to Iwakuni have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

United Airlines

7.4

Good

8,861 reviews

United Airlines

7.4

Good

8,861 reviews

Reviews

1 / 20

4.0

Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

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.

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$1,132+ 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 9/14. 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

Round-trip from

Find flight deals from Boston to Iwakuni

Cheapest flights from Boston to IwakuniExplore the most affordable flight options available from Boston to Iwakuni. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

Explore the most affordable flight options available from Boston to Iwakuni. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

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.

Reviews of airlines servicing Iwakuni

See what other customers who have flown with United Airlines from Boston to Iwakuni have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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

Cheapest flights from Boston to Iwakuni
Explore the most affordable flight options available from Boston to Iwakuni. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.