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Tamuning

$610+ Cheap flights from Portland (PDX) to Tamuning (GUM)

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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GUM
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from Portland to Tamuning

Cheapest flights from Portland to Tamuning
Explore the most affordable flight options available from Portland to Tamuning. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:30 amPDX - GUM
2 stops23h 35mDelta
Tue 12/301:00 amGUM - PDX
2 stops37h 36mDelta
Deal found 12/14$2,755
This United Airlines deal was found by Cheapflights users on 12/14. 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.
Wed 12/247:45 pmPDX - GUM
2 stops29h 15mUnited Airlines
Wed 12/317:40 amGUM - PDX
3 stops33h 06mUnited Airlines
Deal found 12/14$2,856
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Thu 12/187:30 amPDX - GUM
2 stops21h 10mUnited Airlines
Sat 12/207:40 amGUM - PDX
2 stops29h 08mUnited Airlines
Deal found 12/13$3,220
This Expedia deal was found by Cheapflights users on 12/15. 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.
Fri 12/195:10 amPDX - GUM
2 stops39h 25mMultiple Airlines
Sun 12/214:35 pmGUM - PDX
2 stops39h 39mMultiple Airlines
Deal found 12/15$4,454

Find flight deals from Portland to Tamuning

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Tamuning (GUM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,818
(United Airlines)

One-way from

$610
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$2,248
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 Tamuning Guam Intl
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One-way flight from Portland to Tamuning Guam Intl
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Highest demand for flights based on searches. 9% potential increase in price ($210 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($68 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Tamuning 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 16, 2025.
Use the filters below to find and compare flights from Portland to Tamuning that are best for you.

Fly from

Portland

Fly to

Tamuning

Route

Depart

Return

Price

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 3/9

7:30 am-6:50 pm

2 stops18h 20m

Tamuning Guam Intl

Mon 3/23

7:25 am-12:33 pm

2 stops22h 08m

$1,818

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 3/16

5:30 am-6:50 pm

2 stops20h 20m

Tamuning Guam Intl

Mon 3/23

7:25 am-6:48 pm

2 stops28h 23m

$1,818

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 3/12

7:30 am-6:50 pm

2 stops18h 20m

Tamuning Guam Intl

Mon 3/23

7:25 am-6:48 pm

2 stops28h 23m

$1,818

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 3/16

5:30 am-6:50 pm

2 stops20h 20m

Tamuning Guam Intl

Wed 3/25

7:25 am-12:33 pm

2 stops22h 08m

$1,818

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 3/12

5:30 am-6:50 pm

2 stops20h 20m

Tamuning Guam Intl

Tue 3/24

7:25 am-12:33 pm

2 stops22h 08m

$1,818

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 3/11

7:30 am-6:50 pm

2 stops18h 20m

Tamuning Guam Intl

Wed 3/25

7:25 am-6:47 pm

2 stops28h 22m

$1,818

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Tue 3/10

5:30 am-6:50 pm

2 stops20h 20m

Tamuning Guam Intl

Tue 3/24

7:25 am-12:33 pm

2 stops22h 08m

$1,818

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 3/9

7:30 am-6:50 pm

2 stops18h 20m

Tamuning Guam Intl

Tue 3/24

7:25 am-6:48 pm

2 stops28h 23m

$1,818

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 3/12

5:30 am-6:50 pm

2 stops20h 20m

Tamuning Guam Intl

Thu 3/19

7:25 am-12:33 pm

2 stops22h 08m

$1,818

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 3/12

7:30 am-6:50 pm

2 stops18h 20m

Tamuning Guam Intl

Wed 3/25

7:25 am-6:47 pm

2 stops28h 22m

$1,818

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 17 results
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Compare providers for flights from Portland to Tamuning

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Tamuning in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Portland-Tamuning flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-Tamuning flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Portland-Tamuning flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Tamuning flights, Cheapflights users trust eDreams the most. eDreams 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 Portland-Tamuning 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 Portland to Tamuning

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

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

Currently, February is the cheapest month in which you can book a flight from Portland to Tamuning (average of $797). Flying from Portland to Tamuning 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.

What is the cheapest time of day to fly from PDX to GUM?

Find hourly flight availability from Portland to Tamuning. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 16, 2025.

A simple way to save on the total cost of your ticket is to fly from Portland to Tamuning in the afternoon. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight at noon.

How much does it cost to fly round-trip from Portland to Tamuning?

Reviews of airlines servicing Tamuning

Get insights into the airlines that provide service to Tamuning. 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 Tamuning. Reviews last updated December 16, 2025.
See what other customers who have flown with United Airlines from Portland to Tamuning 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
9,092 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,092 reviews
United Airlines
7.4
Good
9,092 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

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

  • How long is the flight from Portland to Tamuning?

    For as low as $1,818, United Airlines can have you in Tamuning from Portland in 18h 20m. Portland and Tamuning are separated by a distance of 5676 mi.

  • What is the cheapest airline to fly from Portland to Tamuning round-trip?

    Our cheapest airline available from Portland to Tamuning is United Airlines. Our recent data shows that you can find tickets from as low as $1,602 on this airline. You may be able to fly from Portland to Tamuning for 24% less than the average price by searching for this airline.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Portland to Tamuning (average of $797). Flying from Portland to Tamuning 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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Alternative routes for Portland to Tamuning

See prices for flight routes from nearby airports that may be better suited for you.
Boise to Tamuning flights

Top airline flying from Portland to Tamuning

Discover the top airline that operate flights from Portland to Tamuning. 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,602Average$2,136FlexibilityNo cancel feeOn-time69%

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