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Cheap flights from Portland to Guam from $621

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 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to Guam

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:00 am - 3:35 pm
PDX
-
GUM
37h 35m
2 stops
Multiple Airlines Logo
5:20 pm - 8:10 am
GUM
-
PDX
55h 50m
2 stops
$1,234Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
19h 50m
2 stops
United Airlines Logo
7:05 am - 8:54 pm
GUM
-
PDX
30h 49m
2 stops
$1,869United Airlines
Thu, May 28 - Thu, Jun 4
United Airlines Logo
7:00 am - 6:05 pm
PDX
-
GUM
18h 05m
2 stops
United Airlines Logo
7:05 am - 9:08 am
GUM
-
PDX
19h 03m
2 stops
$1,919United Airlines
Tue, Jul 21 - Wed, Aug 12
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
43h 50m
3 stops
United Airlines Logo
7:05 am - 6:41 pm
GUM
-
PDX
28h 36m
2 stops
$1,943United Airlines
Wed, Jul 22 - Wed, Aug 12
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
19h 50m
2 stops
United Airlines Logo
7:05 am - 10:20 am
GUM
-
PDX
20h 15m
2 stops
$1,969United Airlines
Fri, May 22 - Fri, Jun 5
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
43h 50m
2 stops
United Airlines Logo
7:05 am - 8:54 pm
GUM
-
PDX
30h 49m
2 stops
$1,992United Airlines
Mon, Jun 15 - Sat, Jul 4
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
43h 50m
3 stops
United Airlines Logo
7:05 am - 12:08 pm
GUM
-
PDX
22h 03m
2 stops
$1,993United Airlines
Fri, May 22 - Fri, Jun 5
United Airlines Logo
5:15 am - 3:50 pm
PDX
-
GUM
41h 35m
2 stops
United Airlines Logo
7:30 pm - 8:54 pm
GUM
-
PDX
42h 24m
2 stops
$2,006United Airlines
Fri, Jun 26 - Sun, Jul 5
United Airlines Logo
7:00 am - 3:50 pm
PDX
-
GUM
39h 50m
2 stops
United Airlines Logo
7:15 am - 5:44 pm
GUM
-
PDX
27h 29m
2 stops
$2,053United Airlines
Sat, Jul 11 - Sun, Jul 26
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
19h 50m
2 stops
United Airlines Logo
7:05 am - 10:20 am
GUM
-
PDX
20h 15m
2 stops
$2,089United Airlines
Wed, Jun 24 - Thu, Jul 2

Delta flights from Portland to Guam

Our best Delta deals on Portland to Guam flight tickets
Delta
Apr 9
PDX12:30 amPortland
30h 25m
2 stops
GUM11:55 pmTamuning Guam Intl
Apr 15
GUM3:00 amTamuning Guam Intl
37h 53m
2 stops
PDX11:53 pmPortland
$2,154
Delta
Apr 3
PDX5:30 amPortland
25h 25m
2 stops
GUM11:55 pmTamuning Guam Intl
Apr 13
GUM3:00 amTamuning Guam Intl
32h 52m
2 stops
PDX6:52 pmPortland
$2,171
Delta
Jul 11
PDX6:00 amPortland
40h 35m
2 stops
GUM3:35 pmTamuning Guam Intl
Jul 26
GUM5:20 pmTamuning Guam Intl
41h 51m
2 stops
PDX6:11 pmPortland
$2,405

United Airlines flights from Portland to Guam

Our best United Airlines deals on Portland to Guam flight tickets
United Airlines
May 28
PDX5:15 amPortland
19h 50m
2 stops
GUM6:05 pmTamuning Guam Intl
Jun 4
GUM7:05 amTamuning Guam Intl
30h 49m
2 stops
PDX8:54 pmPortland
$1,869
United Airlines
Jul 21
PDX5:15 amPortland
19h 50m
2 stops
GUM6:05 pmTamuning Guam Intl
Aug 11
GUM7:05 amTamuning Guam Intl
24h 12m
2 stops
PDX2:17 pmPortland
$1,919
United Airlines
Jul 22
PDX5:15 amPortland
43h 50m
3 stops
GUM6:05 pmTamuning Guam Intl
Aug 12
GUM7:05 amTamuning Guam Intl
28h 36m
2 stops
PDX6:41 pmPortland
$1,943

momondo 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, momondo users made 832,500 searches. Data last updated February 25, 2026.
Use the filters below to find and compare flights from Portland to Guam that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 4/8

9:00 am-3:35 pm

2 stops37h 35m

Tamuning Guam Intl

Wed 4/15

5:20 pm-8:10 am

2 stops55h 50m

$1,234

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 5/28

5:15 am-6:05 pm

2 stops19h 50m

Tamuning Guam Intl

Thu 6/4

7:05 am-8:54 pm

2 stops30h 49m

$1,869

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Tue 7/21

7:00 am-6:05 pm

2 stops18h 05m

Tamuning Guam Intl

Wed 8/12

7:05 am-9:08 am

2 stops19h 03m

$1,919

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 7/22

5:15 am-6:05 pm

3 stops43h 50m

Tamuning Guam Intl

Wed 8/12

7:05 am-6:41 pm

2 stops28h 36m

$1,943

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 5/22

5:15 am-6:05 pm

2 stops19h 50m

Tamuning Guam Intl

Fri 6/5

7:05 am-10:20 am

2 stops20h 15m

$1,969

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 6/15

5:15 am-6:05 pm

2 stops43h 50m

Tamuning Guam Intl

Sat 7/4

7:05 am-8:54 pm

2 stops30h 49m

$1,992

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 5/22

5:15 am-6:05 pm

3 stops43h 50m

Tamuning Guam Intl

Fri 6/5

7:05 am-12:08 pm

2 stops22h 03m

$1,993

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 6/26

5:15 am-3:50 pm

2 stops41h 35m

Tamuning Guam Intl

Sun 7/5

7:30 pm-8:54 pm

2 stops42h 24m

$2,006

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 7/11

7:00 am-3:50 pm

2 stops39h 50m

Tamuning Guam Intl

Sun 7/26

7:15 am-5:44 pm

2 stops27h 29m

$2,053

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 6/24

5:15 am-6:05 pm

2 stops19h 50m

Tamuning Guam Intl

Thu 7/2

7:05 am-10:20 am

2 stops20h 15m

$2,089

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Guam from

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.

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

19h 50m

Direct flights

None
The fastest flight from Portland to Guam takes 19h 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?

  • 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 AirlinesPriceFrom $1,817Free CancellationRating
7.4
9,345 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.

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