What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Osaka round-trip?

According to our current data, Cathay Pacific ($1,213), Turkish Airlines ($1,458), and Air China ($1,603) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Osaka. Cathay Pacific is priced at 23% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Osaka one-way?

The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Osaka are Cathay Pacific ($596), Asiana Airlines ($1,014), and United Airlines ($1,085).

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Osaka?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Osaka (average of $898). Flying from Washington, D.C. Dulles Intl Airport to Osaka in December is currently the most expensive (average of $1,350). 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.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Osaka?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Osaka flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Washington, D.C. Dulles Intl Airport to Osaka?

The most popular route from Washington, D.C. Dulles Intl Airport to Osaka is Washington, D.C. Dulles Intl - Osaka Itami. You may also consider Washington, D.C. Dulles Intl - Osaka Kansai Intl or Washington, D.C. Dulles Intl - Kobe.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Osaka?

Air Canada, ANA and United Airlines are the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Osaka.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Osaka?

Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 36% on the overall cost on flights from Washington, D.C. Dulles Intl Airport to Osaka.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Osaka?

To save on the cost of your flight from Washington, D.C. Dulles Intl Airport to Osaka, book at least 50 days before your planned departure. Booking around this time can save you about 7% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,013 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,264.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Osaka?

January can be a great time to fly to Osaka from Washington, D.C. Dulles Intl Airport with a flight ticket averaging about $1,437. Cheapflights users have found deals in the month of January for as cheap as $935. The most expensive prices can be found in the month of December.

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

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Osaka 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 Washington, D.C. Dulles Intl Airport-Osaka 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 Dulles Intl to Osaka that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Osaka flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Osaka?

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

Can I find deals for business class flights from Dulles Intl to Osaka?

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

$470+ Flights from Washington, D.C. Dulles Intl Airport to Osaka

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Cheap flight deals from Dulles Intl to Osaka

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$1,078 (Cathay Pacific)
One-way from	$470 (Kiwi.com)
Popular in	July
Cheapest in	January
Average price	$1,671

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Osaka (OSA) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Osaka (OSA) flights.

Search Deals

From Washington, D.C. Dulles Intl to Osaka (OSA)

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Osaka (OSA)

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($237 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($58 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from Dulles Intl to Osaka

Cheapest flights from Dulles Intl to Osaka
Explore the most affordable flight options available from Dulles Intl to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

Wed 4/307:00 amIAD - KIX

2 stops34h 40mMultiple Airlines

Sun 5/410:00 amKIX - IAD

2 stops43h 38mMultiple Airlines

Deal found 4/22

$1,077

Mon 5/125:38 pmIAD - KIX

2 stops30h 22mCathay Pacific

Tue 6/2410:00 amKIX - IAD

2 stops33h 50mCathay Pacific

Deal found 4/21

$1,203

Sun 9/218:25 amIAD - KIX

1 stop19h 00mAir Canada

Mon 9/296:05 pmKIX - IAD

2 stops39h 50mAir Canada

Deal found 4/23

$1,239

Wed 9/39:45 amIAD - ITM

2 stops20h 10mAir Canada

Wed 9/172:05 pmITM - IAD

2 stops20h 00mAir Canada

Deal found 4/22

$1,261

Mon 9/19:40 pmIAD - KIX

1 stop32h 20mTurkish Airlines

Tue 9/2310:25 pmKIX - IAD

1 stop26h 20mTurkish Airlines

Deal found 4/22

$1,295

Tue 6/36:30 amIAD - ITM

2 stops24h 15mMultiple Airlines

Wed 6/182:35 pmITM - IAD

2 stops22h 24mMultiple Airlines

Deal found 4/23

$1,472

Tue 10/711:00 pmIAD - KIX

1 stop24h 40mAir China

Tue 10/219:05 amKIX - IAD

1 stop23h 25mAir China

Deal found 4/22

$1,476

Sun 8/241:30 pmIAD - UKB

1 stop31h 30mKorean Air

Mon 9/86:30 pmUKB - IAD

1 stop29h 25mKorean Air

Deal found 4/23

$1,653

Wed 10/17:00 amIAD - ITM

2 stops23h 50mJapan Airlines

Wed 10/152:40 pmITM - IAD

2 stops28h 15mJapan Airlines

Deal found 4/22

$1,659

Tue 8/58:30 pmIAD - KIX

2 stops32h 35mChina Airlines

Wed 8/277:05 pmKIX - IAD

2 stops53h 50mChina Airlines

Deal found 4/22

$1,678

Mon 11/311:05 amIAD - ITM

1 stop17h 05mANA

Thu 12/111:00 pmITM - IAD

1 stop16h 40mANA

Deal found 4/22

$1,681

Mon 9/112:15 pmIAD - UKB

1 stop20h 30mANA

Tue 9/237:05 amUKB - IAD

1 stop16h 00mANA

Deal found 4/22

$1,684

Best flights from Dulles Intl to Osaka
Discover carefully curated flight deals from Dulles Intl to Osaka that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2025.

Wed 4/307:00 amIAD - KIX

2 stops34h 40mMultiple Airlines

Sun 5/410:00 amKIX - IAD

2 stops43h 38mMultiple Airlines

Deal found 4/23

$1,078

Mon 5/125:38 pmIAD - KIX

2 stops30h 22mCathay Pacific

Tue 6/2410:00 amKIX - IAD

2 stops33h 50mCathay Pacific

Deal found 4/22

$1,213

Tue 5/61:30 pmIAD - KIX

1 stop40h 30mTurkish Airlines

Thu 6/2610:25 pmKIX - IAD

1 stop26h 20mTurkish Airlines

Deal found 4/22

$1,458

Tue 7/111:00 pmIAD - KIX

1 stop24h 40mAir China

Fri 7/119:05 amKIX - IAD

1 stop23h 25mAir China

Deal found 4/23

$1,603

Sun 7/132:25 pmIAD - KIX

2 stops37h 00mAir Canada

Tue 7/226:05 pmKIX - IAD

2 stops35h 15mAir Canada

Deal found 4/23

$1,705

Tue 5/206:30 amIAD - ITM

2 stops24h 20mJapan Airlines

Tue 6/32:35 pmITM - IAD

2 stops30h 01mJapan Airlines

Deal found 4/23

$1,793

Sun 7/138:30 amIAD - KIX

2 stops23h 35mAsiana Airlines

Fri 7/189:10 amKIX - IAD

2 stops24h 35mAsiana Airlines

Deal found 4/23

$1,801

Wed 5/2110:05 pmIAD - KIX

1 stop24h 35mEtihad Airways

Wed 6/49:10 amKIX - IAD

2 stops44h 00mEtihad Airways

Deal found 4/23

$1,811

Sun 7/612:15 pmIAD - UKB

1 stop20h 30mANA

Wed 8/277:05 amUKB - IAD

1 stop16h 00mANA

Deal found 4/22

$1,826

Tue 7/16:32 amIAD - KIX

1 stop19h 18mUnited Airlines

Fri 7/114:55 pmKIX - IAD

2 stops20h 50mUnited Airlines

Deal found 4/23

$1,837

Sat 6/76:30 pmIAD - ITM

2 stops29h 05mAir France

Sat 6/148:10 pmITM - IAD

2 stops36h 05mAir France

Deal found 4/23

$1,881

Tue 5/61:15 pmIAD - UKB

1 stop31h 45mKorean Air

Thu 6/2611:00 amUKB - IAD

1 stop37h 15mKorean Air

Deal found 4/22

$2,005

Last-minute flights from Dulles Intl to Osaka
Discover last-minute flight deals from Dulles Intl to Osaka. Data last updated April 24, 2025 and is based on user searches.

Mon 4/289:40 pmIAD - KIX

1 stop32h 20mTurkish Airlines

Tue 5/1310:25 pmKIX - IAD

1 stop26h 20mTurkish Airlines

Deal found 4/22

$1,555

Wed 4/307:00 amIAD - KIX

2 stops34h 40mMultiple Airlines

Sun 5/410:00 amKIX - IAD

2 stops43h 38mMultiple Airlines

Deal found 4/22

$1,077

Wed 4/309:00 pmIAD - KIX

1 stop31h 25mQatar Airways

Sun 5/46:55 pmKIX - IAD

1 stop26h 45mQatar Airways

Deal found 4/22

$1,944

Wed 4/3010:35 amIAD - ITM

2 stops20h 40mAir Canada

Sun 5/42:05 pmITM - IAD

2 stops36h 09mAir Canada

Deal found 4/23

$2,197

Wed 4/3012:15 pmIAD - ITM

1 stop16h 55mANA

Sun 5/410:00 amITM - IAD

1 stop18h 40mANA

Deal found 4/23

$2,581

Wed 4/3012:15 pmIAD - UKB

1 stop20h 30mANA

Sun 5/47:05 amUKB - IAD

1 stop21h 35mANA

Deal found 4/22

$2,676

Wed 4/306:30 amIAD - ITM

2 stops21h 35mUnited Airlines

Sun 5/412:00 pmITM - IAD

1 stop16h 40mUnited Airlines

Deal found 4/22

$2,690

Thu 5/15:35 pmIAD - KIX

1 stop24h 40mLufthansa

Sun 7/209:30 amKIX - IAD

2 stops41h 00mLufthansa

Deal found 4/22

$2,057

Sat 5/36:30 amIAD - ITM

2 stops24h 20mJapan Airlines

Sat 5/172:35 pmITM - IAD

2 stops30h 01mJapan Airlines

Deal found 4/22

$2,284

Mon 5/512:15 pmIAD - ITM

1 stop30h 20mMultiple Airlines

Wed 5/72:35 pmITM - IAD

2 stops39h 03mMultiple Airlines

Deal found 4/21

$1,672

Tue 5/61:30 pmIAD - KIX

1 stop40h 30mTurkish Airlines

Thu 6/2610:25 pmKIX - IAD

1 stop26h 20mTurkish Airlines

Deal found 4/22

$1,458

Mon 5/125:38 pmIAD - KIX

2 stops30h 22mCathay Pacific

Tue 6/2410:00 amKIX - IAD

2 stops33h 50mCathay Pacific

Deal found 4/21

$1,203

One-way flights from Dulles Intl to Osaka
Search for one-way flight options from Dulles Intl to Osaka. Find affordable one-way fares based on user searches. Data last updated April 24, 2025.

Sat 5/37:45 amIAD - KIX

3 stops36h 15mMultiple Airlines

Deal found 4/22

$470

Sat 5/35:13 pmIAD - KIX

2 stops35h 57mCathay Pacific

Deal found 4/22

$596

Fri 5/307:15 amIAD - ITM

3 stops41h 30mMultiple Airlines

Deal found 4/22

$712

Thu 6/267:00 amIAD - KIX

2 stops25h 05mAsiana Airlines

Deal found 4/23

$1,014

Fri 5/306:15 pmIAD - UKB

2 stops26h 45mMultiple Airlines

Deal found 4/22

$1,085

Mon 6/3010:08 pmIAD - KIX

1 stop27h 42mUnited Airlines

Deal found 4/23

$1,085

Thu 6/128:19 pmIAD - KIX

2 stops50h 41mChina Airlines

Deal found 4/23

$1,101

Sat 6/1412:35 pmIAD - UKB

2 stops30h 15mANA

Deal found 4/23

$1,157

Sat 6/1412:35 pmIAD - ITM

2 stops32h 30mANA

Deal found 4/23

$1,160

Fri 5/306:30 amIAD - ITM

2 stops24h 20mJapan Airlines

Deal found 4/22

$1,216

Sat 6/144:00 pmIAD - ITM

2 stops36h 05mUnited Airlines

Deal found 4/23

$1,221

Thu 6/129:40 pmIAD - KIX

1 stop32h 20mTurkish Airlines

Deal found 4/23

$1,288

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Osaka that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sun 8/24

1:15 pm-6:40 am

2 stops28h 25m

Osaka Kansai Intl

Mon 9/8

9:10 am-5:24 am

2 stops33h 14m

$1,128

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Mon 5/12

5:38 pm-1:00 pm

2 stops30h 22m

Osaka Kansai Intl

Tue 6/24

10:00 am-6:50 am

2 stops33h 50m

$1,203

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Sun 9/21

8:25 am-4:25 pm

1 stop19h 00m

Osaka Kansai Intl

Mon 9/29

6:05 pm-8:55 pm

2 stops39h 50m

$1,239

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Wed 9/3

9:45 am-6:55 pm

2 stops20h 10m

Osaka Itami

Wed 9/17

2:05 pm-9:05 pm

2 stops20h 00m

$1,261

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Mon 9/1

9:40 pm-7:00 pm

1 stop32h 20m

Osaka Kansai Intl

Tue 9/23

10:25 pm-11:45 am

1 stop26h 20m

$1,295

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Tue 6/3

6:30 am-7:45 pm

2 stops24h 15m

Osaka Itami

Wed 6/18

2:35 pm-11:59 pm

2 stops22h 24m

$1,472

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Tue 10/7

11:00 pm-12:40 pm

1 stop24h 40m

Osaka Kansai Intl

Tue 10/21

9:05 am-7:30 pm

1 stop23h 25m

$1,476

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Wed 10/1

7:00 am-7:50 pm

2 stops23h 50m

Osaka Itami

Wed 10/15

2:40 pm-5:55 am

2 stops28h 15m

$1,659

Washington, D.C.Osaka

IAD - KIX

IADKIX

Washington, D.C. Dulles Intl

Tue 8/5

8:30 pm-6:05 pm

2 stops32h 35m

Osaka Kansai Intl

Wed 8/27

7:05 pm-11:55 am

2 stops53h 50m

$1,678

Washington, D.C.Osaka

IAD - ITM

IADITM

Washington, D.C. Dulles Intl

Mon 9/1

12:15 pm-8:35 pm

1 stop19h 20m

Osaka Itami

Wed 9/10

8:20 pm-10:05 am

1 stop26h 45m

$1,688

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 47 results

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Compare providers for flights from Dulles Intl to Osaka

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Osaka in April.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Osaka flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C. Dulles Intl Airport-Osaka flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Osaka flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Osaka 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 Washington, D.C. Dulles Intl Airport-Osaka 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 Dulles Intl to Osaka

Have a flexible travel schedule? Discover the best time to fly to Osaka from Dulles Intl 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Osaka

What is the cheapest time of day to fly from IAD to OSA?

When flying from Washington, D.C. Dulles Intl Airport to Osaka, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 31% versus a flight at noon.

Rainfall in Osaka by month

In terms of precipitation, rainfall in Osaka ranges from 1.6 - 7.9 inches per month. June is typically the wettest month, when rainfall can reach 7.9 in. January is typically the driest time to visit Osaka when rainfall is around 1.6 in.

Temperature in Osaka by month

If weather is an important factor for your trip to Osaka, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

Reviews of airlines servicing Osaka

Read reviews from past customers who have flown Korean Air, Japan Airlines and China Airlines from Washington, D.C. to Osaka. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Korean Air

8.4

Very good

1,062 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

Korean Air

8.4

Very good

1,062 reviews

Korean Air

8.4

Very good

1,062 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Japan Airlines

8.3

Very good

1,453 reviews

Korean Air

8.4

Very good

1,062 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

China Airlines

8.3

Very good

727 reviews

Korean Air

8.4

Very good

1,062 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

ANA

8.3

Very good

853 reviews

Korean Air

8.4

Very good

1,062 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Asiana Airlines

8.2

Very good

443 reviews

Korean Air

8.4

Very good

1,062 reviews

Reviews

1 / 20

10.0

Excellent

Chris,Mar 2025

SEA - ICN

Related info for your journey

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Osaka round-trip?
According to our current data, Cathay Pacific ($1,213), Turkish Airlines ($1,458), and Air China ($1,603) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Osaka. Cathay Pacific is priced at 23% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Osaka one-way?
The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Osaka are Cathay Pacific ($596), Asiana Airlines ($1,014), and United Airlines ($1,085).
What are the most popular routes from Washington, D.C. Dulles Intl Airport to Osaka?
The most popular route from Washington, D.C. Dulles Intl Airport to Osaka is Washington, D.C. Dulles Intl - Osaka Itami. You may also consider Washington, D.C. Dulles Intl - Osaka Kansai Intl or Washington, D.C. Dulles Intl - Kobe.
Can I find deals for flights from Dulles Intl to Osaka that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Osaka flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Osaka?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Osaka.
Can I find deals for business class flights from Dulles Intl to Osaka?
Yes. Cheapflights offers flight deals from Dulles Intl to Osaka by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Osaka?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Osaka (average of $898). Flying from Washington, D.C. Dulles Intl Airport to Osaka in December is currently the most expensive (average of $1,350). 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.

See more FAQs

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Top 3 airlines flying from Dulles Intl to Osaka

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest$929	Average$1,020	FlexibilityNo cancel fee	On-time67%
ANA	Cheapest$1,457	Average$1,892	FlexibilityNo cancel fee	On-time80%
United Airlines	Cheapest$1,666	Average$1,884	FlexibilityNo cancel fee	On-time69%

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$470+ Cheap flights from Dulles Intl (IAD) to Osaka (OSA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Dulles Intl to OsakaExplore the most affordable flight options available from Dulles Intl to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

Explore the most affordable flight options available from Dulles Intl to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

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Best time to book a flight from Dulles Intl to Osaka

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Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Osaka

What is the cheapest time of day to fly from IAD to OSA?

Find hourly flight availability from Dulles Intl to Osaka. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 24, 2025.

Rainfall in Osaka by month

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Temperature in Osaka by month

Plan your trip to Osaka by taking into account the average temperature totals by month.

Reviews of airlines servicing Osaka

Get insights into the airlines that provide service to Osaka. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Osaka. Reviews last updated April 24, 2025.

Read reviews from past customers who have flown Korean Air, Japan Airlines and China Airlines from Washington, D.C. to Osaka. 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 Dulles Intl to Osaka. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Osaka round-trip?

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Osaka one-way?

What are the most popular routes from Washington, D.C. Dulles Intl Airport to Osaka?

Can I find deals for flights from Dulles Intl to Osaka that include hotel bookings?

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Can I find deals for business class flights from Dulles Intl to Osaka?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Osaka?

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Alternative routes for Dulles Intl to Osaka

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Top 3 airlines flying from Dulles Intl to Osaka

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Cheapest flights from Dulles Intl to Osaka
Explore the most affordable flight options available from Dulles Intl to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.