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Guam

$1,818+ Cheap flights from Portland (PDX) to Guam

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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GUM
Jan 29 — Feb 51
Thu 1/29
Thu 2/5
1 adult, Economy
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Cheap flight deals from Portland to Guam

Best flights from Portland to Guam
Discover carefully curated flight deals from Portland to Guam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 30, 2025.

This United Airlines deal was found by Cheapflights users on 12/28. 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.
Thu 2/265:35 amPDX - GUM
2 stops19h 30mUnited Airlines
Thu 3/57:40 amGUM - PDX
2 stops29h 07mUnited Airlines
Deal found 12/28$1,818
This Delta deal was found by Cheapflights users on 12/28. 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 2/257:15 amPDX - GUM
2 stops21h 50mDelta
Sun 3/84:50 pmGUM - PDX
2 stops43h 13mDelta
Deal found 12/28$1,903
This United Airlines deal was found by Cheapflights users on 12/28. 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.
Thu 2/265:35 amPDX - GUM
2 stops19h 30mUnited Airlines
Sun 3/87:20 pmGUM - PDX
2 stops36h 39mUnited Airlines
Deal found 12/28$1,841
This Delta deal was found by Cheapflights users on 12/28. 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.
Mon 2/237:15 amPDX - GUM
2 stops21h 50mDelta
Tue 3/31:00 amGUM - PDX
2 stops41h 15mDelta
Deal found 12/28$1,903
This United Airlines deal was found by Cheapflights users on 12/28. 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.
Thu 2/265:35 amPDX - GUM
2 stops19h 30mUnited Airlines
Wed 3/47:20 pmGUM - PDX
2 stops35h 08mUnited Airlines
Deal found 12/28$1,841
This Delta deal was found by Cheapflights users on 12/28. 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.
Tue 2/247:15 amPDX - GUM
2 stops21h 50mDelta
Wed 3/41:00 amGUM - PDX
2 stops37h 30mDelta
Deal found 12/28$1,903
This United Airlines deal was found by Cheapflights users on 12/28. 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 3/11:40 pmPDX - GUM
2 stops35h 25mUnited Airlines
Sun 3/87:20 pmGUM - PDX
2 stops40h 28mUnited Airlines
Deal found 12/28$1,857
This Delta deal was found by Cheapflights users on 12/28. 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.
Mon 2/235:45 amPDX - GUM
2 stops23h 20mDelta
Wed 3/41:00 amGUM - PDX
2 stops35h 48mDelta
Deal found 12/28$1,903
This United Airlines deal was found by Cheapflights users on 12/28. 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.
Thu 2/265:35 amPDX - GUM
2 stops19h 30mUnited Airlines
Sat 3/77:25 amGUM - PDX
2 stops23h 08mUnited Airlines
Deal found 12/28$1,868
This United Airlines deal was found by Cheapflights users on 12/28. 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.
Thu 2/265:35 amPDX - GUM
2 stops19h 30mUnited Airlines
Fri 3/67:40 amGUM - PDX
2 stops29h 07mUnited Airlines
Deal found 12/28$1,868
This United Airlines deal was found by Cheapflights users on 12/28. 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 2/287:57 pmPDX - GUM
2 stops29h 08mUnited Airlines
Sun 3/87:20 pmGUM - PDX
2 stops44h 44mUnited Airlines
Deal found 12/28$1,891
This United Airlines deal was found by Cheapflights users on 12/28. 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.
Fri 2/277:57 pmPDX - GUM
2 stops29h 08mUnited Airlines
Sun 3/87:20 pmGUM - PDX
2 stops40h 28mUnited Airlines
Deal found 12/28$1,891

Find flight deals from Portland to Guam

Keep the following information in mind while searching for Portland to Guam flight deals. Data was last updated December 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,818
(United Airlines)

Popular in

August

Cheapest in

February

Average price

$2,248
Provider with most accurate pricing for Portland-Tamuning Guam Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Tamuning Guam Intl flights.
Search Deals
From Portland to Guam
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($195 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($66 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Guam 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 December 30, 2025.
Use the filters below to find and compare flights from Portland to Guam that are best for you.

Fly from

Portland

Fly to

Guam

Route

Depart

Return

Price

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 2/26

5:35 am-7:05 pm

2 stops19h 30m

Tamuning Guam Intl

Thu 3/5

7:40 am-6:47 pm

2 stops29h 07m

$1,818

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 2/26

5:35 am-7:05 pm

2 stops19h 30m

Tamuning Guam Intl

Sun 3/8

7:20 pm-1:59 pm

2 stops36h 39m

$1,841

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 2/26

5:35 am-7:05 pm

2 stops19h 30m

Tamuning Guam Intl

Wed 3/4

7:20 pm-12:28 pm

2 stops35h 08m

$1,841

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 3/1

1:40 pm-7:05 pm

2 stops35h 25m

Tamuning Guam Intl

Sun 3/8

7:20 pm-5:48 pm

2 stops40h 28m

$1,857

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 2/26

5:35 am-7:05 pm

2 stops19h 30m

Tamuning Guam Intl

Sat 3/7

7:25 am-12:33 pm

2 stops23h 08m

$1,868

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 2/26

5:35 am-7:05 pm

2 stops19h 30m

Tamuning Guam Intl

Fri 3/6

7:40 am-6:47 pm

2 stops29h 07m

$1,868

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 2/28

7:57 pm-7:05 pm

2 stops29h 08m

Tamuning Guam Intl

Sun 3/8

7:20 pm-10:04 pm

2 stops44h 44m

$1,891

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 2/27

7:57 pm-7:05 pm

2 stops29h 08m

Tamuning Guam Intl

Sun 3/8

7:20 pm-5:48 pm

2 stops40h 28m

$1,891

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 2/25

7:15 am-11:05 pm

2 stops21h 50m

Tamuning Guam Intl

Sun 3/8

4:50 pm-6:03 pm

2 stops43h 13m

$1,903

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 2/23

7:15 am-11:05 pm

2 stops21h 50m

Tamuning Guam Intl

Tue 3/3

1:00 am-12:15 am

2 stops41h 15m

$1,903

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Showing 1-10 of 24 results
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2
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Best time to book a flight from Portland to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam 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 Guam

What is the cheapest month to book a flight from Portland to Guam?

Currently, February is the cheapest month in which you can book a flight from Portland to Guam (average of $797). Flying from Portland to Guam in October is currently the most expensive (average of $2,488). 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 Guam

Get insights into the airlines that provide service to Guam. 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 Guam. Reviews last updated December 30, 2025.
Get a feel of what it's like to fly with United Airlines from Portland to Guam by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,121 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,121 reviews
United Airlines
7.4
Good
9,121 reviews

Entertainment

7.1

Overall

7.4

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from Portland to Guam. 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 Guam?

    If you book a flight to Guam from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PDX) is located 6.0 mi from the center of Portland.

  • How long is the flight from Portland to Guam?

    A quick flight from Portland to Guam can take about 19h 30m. United Airlines provides one of the quickest options available for as low as $1,818. The distance from Portland to Guam is about 5676 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to Guam 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 to Guam?

    Currently, February is the cheapest month in which you can book a flight from Portland to Guam (average of $797). Flying from Portland to Guam in October is currently the most expensive (average of $2,488). 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 Guam

Discover the top airline that operate flights from Portland to Guam. 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 December 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,602Average$2,210FlexibilityNo cancel feeOn-time69%

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