What is the cheapest airline that flies from Portland to Guam?

Delta is the most popular carrier operating from Portland to Guam

When did momondo last update prices for flights from Portland Airport to Guam?

Prices for flights from Portland Airport to Guam refresh daily.

How many operators does momondo search for flights from Portland Airport to Guam?

The number of operators available for flights from Portland Airport to Guam is 1 as of November 2025.

How old do you have to be to fly from Portland Airport to Guam?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Guam.

What documentation or ID do you need to fly to Guam?

The required travel and health documents for your Guam trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Guam. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$1,411 Cheap Flights from Portland to Guam in 2025/26

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7:51 pm - 7:05 pmPDX-GUM

53h 14m2 stops

7:40 am - 6:55 pmGUM-PDX

29h 15m2 stops

$1,845United Airlines

Find Deal

Sat, Feb 7 - Mon, Feb 16

5:15 pm - 11:05 pmPDX-GUM

35h 50m2 stops

4:50 pm - 12:17 amGUM-PDX

49h 27m2 stops

$1,909Delta

Find Deal

Sun, Jan 18 - Tue, Jan 27

9:20 am - 2:35 pmPDX-GUM

35h 15m2 stops

4:50 pm - 6:50 pmGUM-PDX

44h 00m2 stops

$1,953Delta

Find Deal

Fri, Jan 16 - Tue, Jan 27

1:30 pm - 11:05 pmPDX-GUM

39h 35m2 stops

1:00 am - 12:17 amGUM-PDX

41h 17m2 stops

$1,959Delta

Find Deal

Thu, Jan 15 - Mon, Jan 26

7:10 am - 11:05 pmPDX-GUM

21h 55m2 stops

1:00 am - 4:30 pmGUM-PDX

33h 30m2 stops

$2,008Delta

Find Deal

Mon, Jan 12 - Mon, Jan 26

1:53 pm - 11:05 pmPDX-GUM

39h 12m2 stops

1:00 am - 12:17 amGUM-PDX

41h 17m2 stops

$2,063Delta

Find Deal

Sun, Jan 11 - Sat, Jan 24

9:20 am - 2:35 pmPDX-GUM

35h 15m2 stops

1:00 am - 12:15 amGUM-PDX

41h 15m2 stops

$2,093Delta

Find Deal

Sat, Feb 7 - Sun, Feb 15

7:38 pm - 11:05 pmPDX-GUM

34h 27m2 stops

1:00 am - 6:58 pmGUM-PDX

34h 58m2 stops

$2,109Delta

Find Deal

Sun, Mar 15 - Wed, Mar 18

7:49 pm - 6:50 pmPDX-GUM

30h 01m2 stops

7:25 am - 12:33 pmGUM-PDX

22h 08m2 stops

$2,144United Airlines

Find Deal

Sun, Mar 15 - Thu, Mar 19

7:51 pm - 7:05 pmPDX-GUM

29h 14m2 stops

7:20 pm - 12:33 pmGUM-PDX

35h 13m2 stops

$2,216United Airlines

Find Deal

Sun, Jan 11 - Sun, Jan 25

United Airlines flights from Portland to Guam

Our best United Airlines deals on Portland to Guam flight tickets

United Airlines

Feb 7

PDX7:51 pmPortland

53h 14m

2 stops

GUM7:05 pmTamuning Guam Intl

Feb 16

GUM7:40 amTamuning Guam Intl

29h 15m

2 stops

PDX6:55 pmPortland

$1,845

Find similar

United Airlines

Mar 15

PDX7:49 pmPortland

30h 01m

2 stops

GUM6:50 pmTamuning Guam Intl

Mar 19

GUM7:25 amTamuning Guam Intl

22h 08m

2 stops

PDX12:33 pmPortland

$2,144

Find similar

United Airlines

Jan 11

PDX7:51 pmPortland

29h 14m

2 stops

GUM7:05 pmTamuning Guam Intl

Jan 25

GUM7:20 pmTamuning Guam Intl

35h 13m

2 stops

PDX12:33 pmPortland

$2,216

Find similar

Delta flights from Portland to Guam

Our best Delta deals on Portland to Guam flight tickets

Delta

Jan 18

PDX5:15 pmPortland

35h 50m

2 stops

GUM11:05 pmTamuning Guam Intl

Jan 27

GUM4:50 pmTamuning Guam Intl

49h 27m

2 stops

PDX12:17 amPortland

$1,909

Find similar

Delta

Jan 16

PDX9:20 amPortland

35h 15m

2 stops

GUM2:35 pmTamuning Guam Intl

Jan 27

GUM4:50 pmTamuning Guam Intl

44h 00m

2 stops

PDX6:50 pmPortland

$1,953

Find similar

Delta

Jan 15

PDX1:30 pmPortland

39h 35m

2 stops

GUM11:05 pmTamuning Guam Intl

Jan 26

GUM1:00 amTamuning Guam Intl

41h 17m

2 stops

PDX12:17 amPortland

$1,959

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 2/7

7:51 pm-7:05 pm

2 stops53h 14m

Tamuning Guam Intl

Mon 2/16

7:40 am-6:55 pm

2 stops29h 15m

$1,845

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 1/18

5:15 pm-11:05 pm

2 stops35h 50m

Tamuning Guam Intl

Tue 1/27

4:50 pm-12:17 am

2 stops49h 27m

$1,909

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 1/16

9:20 am-2:35 pm

2 stops35h 15m

Tamuning Guam Intl

Tue 1/27

4:50 pm-6:50 pm

2 stops44h 00m

$1,953

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 1/15

1:30 pm-11:05 pm

2 stops39h 35m

Tamuning Guam Intl

Mon 1/26

1:00 am-12:17 am

2 stops41h 17m

$1,959

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 1/12

7:10 am-11:05 pm

2 stops21h 55m

Tamuning Guam Intl

Mon 1/26

1:00 am-4:30 pm

2 stops33h 30m

$2,008

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 1/11

1:53 pm-11:05 pm

2 stops39h 12m

Tamuning Guam Intl

Sat 1/24

1:00 am-12:17 am

2 stops41h 17m

$2,063

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 2/7

9:20 am-2:35 pm

2 stops35h 15m

Tamuning Guam Intl

Sun 2/15

1:00 am-12:15 am

2 stops41h 15m

$2,093

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 3/15

7:38 pm-11:05 pm

2 stops34h 27m

Tamuning Guam Intl

Wed 3/18

1:00 am-6:58 pm

2 stops34h 58m

$2,109

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 3/15

7:49 pm-6:50 pm

2 stops30h 01m

Tamuning Guam Intl

Thu 3/19

7:25 am-12:33 pm

2 stops22h 08m

$2,144

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 1/11

7:51 pm-7:05 pm

2 stops29h 14m

Tamuning Guam Intl

Sun 1/25

7:20 pm-12:33 pm

2 stops35h 13m

$2,216

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to Guam

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Guam?

If you aren’t able to travel during the month of February, then book flights to Guam from Portland during September instead. Flights to Guam in September, while not as cheap as those in February, still average around $1,914.

What is the cheapest day to depart on your flight to Guam?

The cheapest day to depart from Portland to Guam is on a Wednesday when prices can be found for as low as $1,892. Flights from Portland to Guam on a Thursday will generally be more expensive and average around $2,126. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Guam?

Flying to Guam from Portland in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,967 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to Guam is in the morning when prices are around $2,041.

Cheap Portland to Guam flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Guam

Fastest flight time	18h 50m
Direct flights	None

The fastest flight from Portland to Guam takes 18h 50m

There are no direct flights from Portland to Guam. There are no popular flight routes from Portland to Guam.

Search flight deals

When did momondo last update prices for flights from Portland Airport to Guam?
Prices for flights from Portland Airport to Guam refresh daily.
How many operators does momondo search for flights from Portland Airport to Guam?
The number of operators available for flights from Portland Airport to Guam is 1 as of November 2025.
How old do you have to be to fly from Portland Airport to Guam?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Guam.
What documentation or ID do you need to fly to Guam?
The required travel and health documents for your Guam trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Guam. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Portland to Guam

Compare and see reviews for airlines that fly from Portland to Guam with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $1,602	Free Cancellation	Rating 7.4 9,046 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Guam?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Guam. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Guam with flexible booking policies on momondo?

Flights from Portland to Guam with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to Guam?

Once all potential Portland to Guam flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Guam right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Guam flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Guam trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Guam

Flights to Tamuningfrom $739

Cheap flights from Portland to Guam from $1,411

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Guam departing on 12/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Portland to Guam

Cheap round-trip flights

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United Airlines flights from Portland to Guam

Our best United Airlines deals on Portland to Guam flight tickets

Delta flights from Portland to Guam

Our best Delta deals on Portland to Guam flight tickets

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Use the filters below to find and compare flights from Portland to Guam that are best for you.

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How to get the cheapest flight ticket from Portland to Guam

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Guam?

If you aren’t able to travel during the month of February, then book flights to Guam from Portland during September instead. Flights to Guam in September, while not as cheap as those in February, still average around $1,914.

What is the cheapest day to depart on your flight to Guam?

What is the cheapest time of day to depart on your flight to Guam?

Flying to Guam from Portland in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,967 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to Guam is in the morning when prices are around $2,041.

What is the cheapest airline that flies from Portland to Guam?

Delta is the most popular carrier operating from Portland to Guam

Cheap Portland to Guam flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Guam

Fastest flight time

Direct flights

When did momondo last update prices for flights from Portland Airport to Guam?

How many operators does momondo search for flights from Portland Airport to Guam?

How old do you have to be to fly from Portland Airport to Guam?

What documentation or ID do you need to fly to Guam?

Best airlines flying from Portland to Guam

Compare and see reviews for airlines that fly from Portland to Guam with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Guam?

Can I find flights from Portland to Guam with flexible booking policies on momondo?

How can momondo help me find flights from Portland to Guam?

I’m not ready to book a flight from Portland to Guam right now. Can momondo alert me if prices change?

An easier way to manage your Guam trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Guam

Popular cities in Guam

Popular flights according to clicks in the last 7 days on momondo