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Cheap flights from Portland to Guam from $864

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 7/12. 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
8:45 am - 2:40 pm
PDX
-
GUM
36h 55m
2 stops
Multiple Airlines Logo
4:40 pm - 9:28 pm
GUM
-
PDX
45h 48m
2 stops
$1,718Multiple Airlines
Tue, May 5 - Tue, May 12
United Airlines Logo
5:15 am - 3:50 pm
PDX
-
GUM
41h 35m
2 stops
United Airlines Logo
7:05 am - 10:20 am
GUM
-
PDX
20h 15m
2 stops
$1,939United Airlines
Tue, Jul 7 - Thu, Jul 16
United Airlines Logo
5:15 am - 4:20 am
PDX
-
GUM
30h 05m
3 stops
United Airlines Logo
7:05 am - 10:20 am
GUM
-
PDX
20h 15m
2 stops
$1,942United Airlines
Tue, Jul 7 - Thu, Jul 16
Multiple Airlines Logo
5:46 pm - 2:40 pm
PDX
-
GUM
51h 54m
2 stops
Multiple Airlines Logo
4:40 pm - 11:31 am
GUM
-
PDX
59h 51m
2 stops
$2,080Multiple Airlines
Sun, May 24 - Sun, May 31
United Airlines Logo
7:45 pm - 6:05 pm
PDX
-
GUM
29h 20m
2 stops
United Airlines Logo
7:15 am - 8:54 pm
GUM
-
PDX
30h 39m
2 stops
$2,149United Airlines
Wed, May 13 - Tue, May 26
United Airlines Logo
5:20 am - 4:25 am
PDX
-
GUM
30h 05m
3 stops
United Airlines Logo
7:15 am - 4:47 pm
GUM
-
PDX
26h 32m
2 stops
$2,165United Airlines
Wed, May 13 - Tue, May 26
United Airlines Logo
7:00 am - 3:50 pm
PDX
-
GUM
39h 50m
2 stops
United Airlines Logo
5:00 pm - 8:54 pm
GUM
-
PDX
44h 54m
2 stops
$2,186United 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
$2,189United Airlines
Fri, Jul 3 - Sat, Jul 11
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
43h 50m
3 stops
United Airlines Logo
5:00 pm - 8:54 pm
GUM
-
PDX
44h 54m
2 stops
$2,198United Airlines
Sat, Jul 11 - Sun, Jul 26
United Airlines Logo
7:00 am - 3:50 pm
PDX
-
GUM
39h 50m
2 stops
United Airlines Logo
7:05 am - 12:50 am
GUM
-
PDX
34h 45m
2 stops
$2,240United Airlines
Sat, Jul 11 - Sun, Jul 26

Delta flights from Portland to Guam

Our best Delta deals on Portland to Guam flight tickets
Delta
Jul 11
PDX5:30 amPortland
41h 05m
2 stops
GUM3:35 pmTamuning Guam Intl
Jul 26
GUM5:20 pmTamuning Guam Intl
47h 00m
2 stops
PDX11:20 pmPortland
$2,480
Delta
May 22
PDX7:05 amPortland
39h 30m
2 stops
GUM3:35 pmTamuning Guam Intl
Jun 5
GUM5:20 pmTamuning Guam Intl
43h 04m
2 stops
PDX7:24 pmPortland
$2,584
Delta
May 22
PDX3:30 pmPortland
39h 25m
2 stops
GUM11:55 pmTamuning Guam Intl
Jun 4
GUM2:00 amTamuning Guam Intl
38h 44m
2 stops
PDX11:44 pmPortland
$2,589

United Airlines flights from Portland to Guam

Our best United Airlines deals on Portland to Guam flight tickets
United Airlines
Jul 7
PDX5:15 amPortland
41h 35m
2 stops
GUM3:50 pmTamuning Guam Intl
Jul 16
GUM7:05 amTamuning Guam Intl
20h 15m
2 stops
PDX10:20 amPortland
$1,939
United Airlines
Jul 7
PDX5:15 amPortland
30h 05m
3 stops
GUM4:20 amTamuning Guam Intl
Jul 16
GUM7:05 amTamuning Guam Intl
20h 15m
2 stops
PDX10:20 amPortland
$1,942
United Airlines
May 13
PDX7:45 pmPortland
29h 20m
2 stops
GUM6:05 pmTamuning Guam Intl
May 26
GUM7:15 amTamuning Guam Intl
30h 39m
2 stops
PDX8:54 pmPortland
$2,149

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 April 13, 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

Cheapest round-trip

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Tue 5/5

8:45 am-2:40 pm

2 stops36h 55m

Tamuning Guam Intl

Tue 5/12

4:40 pm-9:28 pm

2 stops45h 48m

$1,718

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Tue 7/7

5:15 am-3:50 pm

2 stops41h 35m

Tamuning Guam Intl

Thu 7/16

7:05 am-10:20 am

2 stops20h 15m

$1,939

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Tue 7/7

5:15 am-4:20 am

3 stops30h 05m

Tamuning Guam Intl

Thu 7/16

7:05 am-10:20 am

2 stops20h 15m

$1,942

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 5/24

5:46 pm-2:40 pm

2 stops51h 54m

Tamuning Guam Intl

Sun 5/31

4:40 pm-11:31 am

2 stops59h 51m

$2,080

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 5/13

7:45 pm-6:05 pm

2 stops29h 20m

Tamuning Guam Intl

Tue 5/26

7:15 am-8:54 pm

2 stops30h 39m

$2,149

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 5/13

5:20 am-4:25 am

3 stops30h 05m

Tamuning Guam Intl

Tue 5/26

7:15 am-4:47 pm

2 stops26h 32m

$2,165

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 7/11

7:00 am-3:50 pm

2 stops39h 50m

Tamuning Guam Intl

Sun 7/26

5:00 pm-8:54 pm

2 stops44h 54m

$2,186
Quickest round-trip

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 7/3

5:15 am-6:05 pm

2 stops19h 50m

Tamuning Guam Intl

Sat 7/11

7:05 am-10:20 am

2 stops20h 15m

$2,189

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 7/11

5:15 am-6:05 pm

3 stops43h 50m

Tamuning Guam Intl

Sun 7/26

5:00 pm-8:54 pm

2 stops44h 54m

$2,198

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 7/11

7:00 am-3:50 pm

2 stops39h 50m

Tamuning Guam Intl

Sun 7/26

7:05 am-12:50 am

2 stops34h 45m

$2,240

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 September, then book flights to Guam from Portland during June instead. Flights to Guam in June, while not as cheap as those in September, still average around $1,917.

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

Frequently asked questions about flying 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?

  • 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
9,579 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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