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$645+ Cheap flights from Portland, ME (PWM) to Japan

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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — FUK
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Portland to Japan

Keep the following information in mind while searching for Portland to Japan flight deals. Data was last updated July 31, 2025.

Round-trip from

$1,121
(United Airlines)

One-way from

$645
(United Airlines)

Popular in

August

Cheapest in

October

Average price

$1,273
From Portland to Japan
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One-way flight from Portland to Japan
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Portland to Japan

Cheapest flights from Portland to Japan
Explore the most affordable flight options available from Portland to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/203:45 pmPWM - NRT
2 stops33h 15mUnited Airlines
Fri 10/315:30 pmNRT - PWM
2 stops29h 34mUnited Airlines
Deal found 7/31$1,121
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/271:35 pmPWM - HND
1 stop35h 45mDelta
Sun 10/124:20 pmHND - PWM
1 stop31h 15mDelta
Deal found 7/31$1,121
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/176:00 amPWM - NRT
2 stops41h 40mDelta
Sun 9/72:00 pmNRT - PWM
2 stops23h 03mDelta
Deal found 7/31$1,133
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/276:00 amPWM - HND
1 stop18h 35mUnited Airlines
Sat 10/1112:30 amHND - PWM
2 stops22h 29mUnited Airlines
Deal found 7/31$1,181
This oojo deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/302:17 pmPWM - NRT
2 stops34h 23mCathay Pacific
Wed 10/229:40 pmNRT - PWM
2 stops37h 22mCathay Pacific
Deal found 7/31$1,200
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:00 amPWM - OKA
2 stops27h 00mUnited Airlines
Thu 11/2012:15 pmOKA - PWM
2 stops25h 44mUnited Airlines
Deal found 7/31$1,219
This KAYAK deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:30 amPWM - OKA
2 stops39h 05mKorean Air
Fri 11/2111:45 amOKA - PWM
2 stops40h 07mKorean Air
Deal found 7/31$1,273
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/121:35 pmPWM - OKA
2 stops31h 00mDelta
Wed 11/1911:45 amOKA - PWM
2 stops38h 06mDelta
Deal found 7/31$1,327
This Mytrip deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/283:52 pmPWM - NRT
2 stops34h 23mMultiple Airlines
Wed 10/222:35 pmNRT - PWM
2 stops33h 56mMultiple Airlines
Deal found 7/31$1,367
This Korean Air deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/222:41 pmPWM - NRT
2 stops39h 54mKorean Air
Tue 10/212:00 pmNRT - PWM
2 stops45h 19mKorean Air
Deal found 7/31$1,415
This Gurufare deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/242:17 pmPWM - HND
3 stops36h 28mSingapore Airlines
Tue 10/215:05 pmHND - PWM
3 stops41h 56mSingapore Airlines
Deal found 7/31$1,531
This WestJet deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1312:40 pmPWM - NRT
2 stops38h 45mWestJet
Sat 9/206:30 pmNRT - PWM
2 stops54h 25mWestJet
Deal found 7/30$1,661

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Japan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Portland to Japan that are best for you.

Fly from

Portland

Fly to

Japan

Route

Depart

Return

Price

PortlandTokyo

PWM - NRT

PWMNRT

Portland

Mon 10/20

3:45 pm-2:00 pm

2 stops33h 15m

Tokyo Narita

Fri 10/31

5:30 pm-10:04 am

2 stops29h 34m

$1,121

PortlandTokyo

PWM - HND

PWMHND

Portland

Sat 9/27

1:35 pm-2:20 pm

1 stop35h 45m

Tokyo Haneda

Sun 10/12

4:20 pm-10:35 am

1 stop31h 15m

$1,121

PortlandTokyo

PWM - NRT

PWMNRT

Portland

Sun 8/17

6:00 am-12:40 pm

2 stops41h 40m

Tokyo Narita

Sun 9/7

2:00 pm-12:03 am

2 stops23h 03m

$1,133

PortlandTokyo

PWM - HND

PWMHND

Portland

Sat 9/27

6:00 am-1:35 pm

1 stop18h 35m

Tokyo Haneda

Sat 10/11

12:30 am-9:59 am

2 stops22h 29m

$1,181

PortlandTokyo

PWM - NRT

PWMNRT

Portland

Tue 9/30

2:17 pm-1:40 pm

2 stops34h 23m

Tokyo Narita

Wed 10/22

9:40 pm-10:02 pm

2 stops37h 22m

$1,200

PortlandOkinawa

PWM - OKA

PWMOKA

Portland

Sun 11/9

9:45 am-11:00 pm

2 stops23h 15m

Okinawa Naha

Wed 11/19

10:20 am-6:59 pm

2 stops22h 39m

$1,219

PortlandOkinawa

PWM - OKA

PWMOKA

Portland

Sat 11/8

2:20 pm-11:00 pm

2 stops42h 40m

Okinawa Naha

Wed 11/19

12:15 pm-11:17 pm

3 stops49h 02m

$1,226

PortlandOkinawa

PWM - OKA

PWMOKA

Portland

Sun 11/9

5:30 am-10:35 am

2 stops39h 05m

Okinawa Naha

Fri 11/21

11:45 am-1:52 pm

2 stops40h 07m

$1,273

PortlandOkinawa

PWM - OKA

PWMOKA

Portland

Wed 11/12

1:35 pm-10:35 am

2 stops31h 00m

Okinawa Naha

Wed 11/19

11:45 am-11:51 am

2 stops38h 06m

$1,327

PortlandTokyo

PWM - NRT

PWMNRT

Portland

Sun 9/28

3:52 pm-3:15 pm

2 stops34h 23m

Tokyo Narita

Wed 10/22

2:35 pm-11:31 am

2 stops33h 56m

$1,367

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 23 results
1
2
3

Best time to book a flight from Portland to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan from Portland 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 Portland to Japan

What is the cheapest month to book a flight from Portland, Maine to Japan?

Currently, February is the cheapest month in which you can book a flight from Portland, Maine to Japan (average of $884). Flying from Portland, Maine to Japan in December is currently the most expensive (average of $1,627). 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.

Reviews of airlines servicing Japan

Get insights into the airlines that provide service to Japan. 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 Japan. Reviews last updated July 31, 2025.
See what other customers who have flown with Korean Air, Singapore Airlines, and Delta from Portland to Japan have to say. 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
1,121 reviews

Entertainment

8.2

Comfort

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

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
1,121 reviews
Korean Air
8.4
Very good
1,121 reviews

Entertainment

8.2

Comfort

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

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.
Singapore Airlines
8.1
Very good
1,338 reviews
Korean Air
8.4
Very good
1,121 reviews

Entertainment

8.2

Comfort

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

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.
Delta
8.0
Very good
7,981 reviews
Korean Air
8.4
Very good
1,121 reviews

Entertainment

8.2

Comfort

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

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.
KLM
7.8
Good
1,383 reviews
Korean Air
8.4
Very good
1,121 reviews

Entertainment

8.2

Comfort

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

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.
Cathay Pacific
7.6
Good
949 reviews
Korean Air
8.4
Very good
1,121 reviews

Entertainment

8.2

Comfort

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

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.

Related info for your journey

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

  • What airport do you fly from for flights from Portland to Japan?

    If you book a flight to Japan from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PWM) is located 2.9 mi from the center of Portland.

  • What are the cheapest airlines to fly from Portland, Maine to Japan one-way?

    $645 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Delta and Etihad Airways, with prices starting from $710 and $762, respectively.

  • What are the most popular routes from Portland, Maine to Japan?

    The most popular flight routes from Portland, Maine to Japan are Portland - Tokyo Narita, Portland - Tokyo Haneda and Portland - Okinawa Naha.

  • Can I find deals for flights from Portland to Japan that include hotel bookings?

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

  • How can I find direct flights from Portland to Japan?

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

  • Can I find deals for business class flights from Portland to Japan?

    Yes. Cheapflights offers flight deals from Portland to Japan 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 Portland, Maine to Japan?

    Currently, February is the cheapest month in which you can book a flight from Portland, Maine to Japan (average of $884). Flying from Portland, Maine to Japan in December is currently the most expensive (average of $1,627). 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 airline flying from Portland to Japan

Discover the top airline that operate flights from Portland to Japan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$895Average$1,343FlexibilityNo cancel feeOn-time69%

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