HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Tamuning

$1,903+ Cheap flights from Portland (PDX) to Tamuning (GUM)

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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GUM
Jan 30 — Feb 61
Fri 1/30
Fri 2/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Tamuning with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Portland to Tamuning

Best flights from Portland to Tamuning
Discover carefully curated flight deals from Portland to Tamuning that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 31, 2025.

This Delta deal was found by Cheapflights users on 12/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2812:40 amPDX - GUM
2 stops28h 25mDelta
Wed 2/41:00 amGUM - PDX
2 stops35h 50mDelta
Deal found 12/30$1,903
This United Airlines deal was found by Cheapflights users on 12/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:30 amPDX - GUM
2 stops19h 35mUnited Airlines
Sat 5/97:05 amGUM - PDX
2 stops24h 26mUnited Airlines
Deal found 12/30$1,918
This United Airlines deal was found by Cheapflights users on 12/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:30 amPDX - GUM
2 stops19h 35mUnited Airlines
Thu 4/307:30 pmGUM - PDX
2 stops38h 03mUnited Airlines
Deal found 12/30$1,941
This Delta deal was found by Cheapflights users on 12/31. 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 3/215:36 pmPDX - GUM
2 stops36h 29mDelta
Sat 3/284:50 pmGUM - PDX
2 stops48h 04mDelta
Deal found 12/31$1,959
This Delta deal was found by Cheapflights users on 12/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/79:20 amPDX - GUM
2 stops35h 15mDelta
Fri 2/271:00 amGUM - PDX
2 stops35h 48mDelta
Deal found 12/30$2,003
This United Airlines deal was found by Cheapflights users on 12/29. 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 5/275:30 amPDX - GUM
2 stops19h 35mUnited Airlines
Tue 6/27:05 amGUM - PDX
2 stops24h 12mUnited Airlines
Deal found 12/29$2,193
This Delta deal was found by Cheapflights users on 12/29. 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.
Thu 1/2212:40 amPDX - GUM
2 stops28h 25mDelta
Thu 2/121:00 amGUM - PDX
2 stops37h 30mDelta
Deal found 12/29$2,003
This Delta deal was found by Cheapflights users on 12/29. 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.
Thu 1/155:50 amPDX - GUM
2 stops23h 15mDelta
Wed 1/281:00 amGUM - PDX
2 stops37h 59mDelta
Deal found 12/29$2,008
This Delta deal was found by Cheapflights users on 12/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/127:37 pmPDX - GUM
2 stops33h 28mDelta
Sun 1/251:00 amGUM - PDX
2 stops41h 17mDelta
Deal found 12/30$2,212

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 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,903
(Delta)

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 Tamuning Guam Intl
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 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 31, 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

Wed 1/28

12:40 am-11:05 pm

2 stops28h 25m

Tamuning Guam Intl

Wed 2/4

1:00 am-6:50 pm

2 stops35h 50m

$1,903

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 5/1

5:30 am-6:05 pm

2 stops19h 35m

Tamuning Guam Intl

Sat 5/9

7:05 am-2:31 pm

2 stops24h 26m

$1,918

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 4/24

5:30 am-6:05 pm

2 stops19h 35m

Tamuning Guam Intl

Thu 4/30

7:30 pm-4:33 pm

2 stops38h 03m

$1,941

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 3/21

5:36 pm-11:05 pm

2 stops36h 29m

Tamuning Guam Intl

Sat 3/28

4:50 pm-11:54 pm

2 stops48h 04m

$1,959

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 2/7

9:20 am-2:35 pm

2 stops35h 15m

Tamuning Guam Intl

Fri 2/27

1:00 am-6:48 pm

2 stops35h 48m

$2,003

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 1/22

12:40 am-11:05 pm

2 stops28h 25m

Tamuning Guam Intl

Thu 2/12

1:00 am-8:30 pm

2 stops37h 30m

$2,003

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 1/15

5:50 am-11:05 pm

2 stops23h 15m

Tamuning Guam Intl

Wed 1/28

1:00 am-8:59 pm

2 stops37h 59m

$2,008

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 5/27

5:30 am-6:05 pm

2 stops19h 35m

Tamuning Guam Intl

Tue 6/2

7:05 am-2:17 pm

2 stops24h 12m

$2,193

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 1/12

7:37 pm-11:05 pm

2 stops33h 28m

Tamuning Guam Intl

Sun 1/25

1:00 am-12:17 am

2 stops41h 17m

$2,212

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/30

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.

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 31, 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
9,124 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

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
9,124 reviews
United Airlines
7.4
Good
9,124 reviews

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

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 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 $1,918, Delta can have you in Tamuning from Portland in 19h 35m. Portland and Tamuning are separated by a distance of 5676 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,602Average$2,210FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.