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$1,684+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GUM
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from Portland to Guam

Keep the following information in mind while searching for Portland to Guam flight deals. Data was last updated January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,869
(United Airlines)

Popular in

August

Cheapest in

February

Average price

$2,853
Provider with most accurate pricing for Portland-Tamuning Guam Intl flight deals.
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Provider most trusted by Cheapflights users for Portland-Tamuning Guam Intl flights.
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From Portland to Guam
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($162 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($63 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Portland to Guam

Cheapest flights from Portland to Guam
Explore the most affordable flight options available from Portland to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This Expedia deal was found by Cheapflights users on 1/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:40 am
PDX
-
GUM
2 stops36h 00m
Multiple Airlines
Sat 10/104:40 pm
GUM
-
PDX
2 stops39h 15m
Multiple Airlines
Deal found 1/15$1,684
This United Airlines deal was found by Cheapflights users on 1/14. 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.
Tue 5/195:30 am
PDX
-
GUM
2 stops19h 35m
United Airlines
Sun 5/317:05 am
GUM
-
PDX
2 stops24h 12m
United Airlines
Deal found 1/14$1,869
This United Airlines deal was found by Cheapflights users on 1/14. 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 3/197:30 am
PDX
-
GUM
2 stops18h 20m
United Airlines
Fri 3/277:25 am
GUM
-
PDX
2 stops34h 10m
United Airlines
Deal found 1/14$1,892
This Delta deal was found by Cheapflights users on 1/13. 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 am
PDX
-
GUM
2 stops23h 20m
Delta
Mon 3/161:00 am
GUM
-
PDX
2 stops32h 56m
Delta
Deal found 1/13$1,904
This United Airlines deal was found by Cheapflights users on 1/15. 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.
Tue 10/63:30 pm
PDX
-
GUM
3 stops33h 35m
United Airlines
Sat 10/107:10 am
GUM
-
PDX
2 stops26h 44m
United Airlines
Deal found 1/15$2,179
This United Airlines deal was found by Cheapflights users on 1/14. 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 6/207:00 am
PDX
-
GUM
2 stops28h 20m
United Airlines
Sat 6/277:15 am
GUM
-
PDX
2 stops24h 02m
United Airlines
Deal found 1/14$2,197
This United Airlines deal was found by Cheapflights users on 1/13. 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 9/53:30 pm
PDX
-
GUM
3 stops33h 35m
United Airlines
Wed 9/97:10 am
GUM
-
PDX
2 stops18h 58m
United Airlines
Deal found 1/13$2,309

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 January 15, 2026.
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 3/19

7:30 am-6:50 pm

2 stops18h 20m

Tamuning Guam Intl

Fri 3/27

7:25 am-12:35 am

2 stops34h 10m

$1,892

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 2/25

7:15 am-11:05 pm

2 stops21h 50m

Tamuning Guam Intl

Wed 3/11

1:00 am-11:58 pm

2 stops39h 58m

$1,904

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 2/23

5:45 am-11:05 pm

2 stops23h 20m

Tamuning Guam Intl

Mon 3/16

1:00 am-4:56 pm

2 stops32h 56m

$1,904

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

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 January is currently the most expensive (average of $2,853). 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 January 15, 2026.
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
9,164 reviews

Entertainment

7.1

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,164 reviews
United Airlines
7.4
Good
9,164 reviews

Entertainment

7.1

Food

6.6

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 18h 20m. United Airlines provides one of the quickest options available for as low as $1,892. The distance from Portland to Guam is about 5676 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 January is currently the most expensive (average of $2,853). 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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,602Average$2,192FlexibilityNo cancel feeOn-time69%

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