In terms of precipitation, rainfall in Portland ranges from 0.7 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Portland when rainfall is around 0.7 in.

If weather is an important factor for your trip to Portland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

What airport do you fly into for flights to Portland from Guam?

Portland (PDX), located 6.0 mi from the city center, is the airport you fly into when you book flights from Guam to Portland.

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

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

How can I find direct flights from Guam to Portland?

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

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

Yes. Cheapflights offers flight deals from Guam to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Find Flights from Guam to Portland

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Find flight deals from Guam to Portland

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Popular in	December
Cheapest in	April
Average price	$1,793

Provider with most accurate pricing for Tamuning Guam Intl-Portland flight deals.

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Provider most trusted by Cheapflights users for Tamuning Guam Intl-Portland flights.

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Highest demand for flights based on searches. 6% potential increase in price ($101 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($27 potential savings vs. average RT price).

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Average for round-trip flights in December 2025

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Everything you need to know about your flight from Guam to Portland

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

Unlike in the morning, when flights are generally more expensive, you can save up to 2% on flights from Guam to Portland by exploring options for tickets in the evening.

Reviews of airlines servicing Portland

See what other customers who have flown with United Airlines from Guam to Portland 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

9,116 reviews

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

9,116 reviews

United Airlines

7.4

Good

9,116 reviews

Reviews

1 / 20

10.0

Excellent

Michelle,Dec 2025

DEN - MKE

Related info for your journey

What airport do you fly into for flights to Portland from Guam?
Portland (PDX), located 6.0 mi from the city center, is the airport you fly into when you book flights from Guam to Portland.
Can I find deals for flights from Guam to Portland that include hotel bookings?
Yes. In addition to deals on Guam to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Guam to Portland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Guam to Portland.
Can I find deals for business class flights from Guam to Portland?
Yes. Cheapflights offers flight deals from Guam to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top airline flying from Guam to Portland

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,383	Average$1,654	FlexibilityNo cancel fee	On-time69%

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Cheap flights from Guam to Portland (PDX)

Find cheap flights from Guam to Portland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Guam to Portland

Keep the following information in mind while searching for Guam to Portland flight deals. Data was last updated December 26, 2025.

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Popular in

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Cheapflights Insights

Everything you need to know about your flight from Guam to Portland

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

Reviews of airlines servicing Portland

See what other customers who have flown with United Airlines from Guam to Portland have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

How can I find direct flights from Guam to Portland?

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

Traveling to a place near Portland?

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