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Cheap flights from Portland to Guam from $566

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 10/28. 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

Delta Logo
5:30 am - 12:10 amPDX-GUM
25h 40m2 stops
Delta Logo
4:50 pm - 10:27 pmGUM-PDX
46h 37m2 stops
$1,903Delta
Find Deal
Mon, Oct 20 - Mon, Oct 27
Delta Logo
12:40 am - 12:10 amPDX-GUM
30h 30m2 stops
Delta Logo
4:50 pm - 10:27 pmGUM-PDX
46h 37m2 stops
$1,953Delta
Find Deal
Mon, Oct 20 - Thu, Oct 30
Delta Logo
12:40 am - 12:10 amPDX-GUM
30h 30m2 stops
Delta Logo
1:55 am - 4:45 pmGUM-PDX
31h 50m2 stops
$2,003Delta
Find Deal
Sat, Oct 18 - Sat, Oct 25
United Airlines Logo
5:30 am - 6:05 pmPDX-GUM
43h 35m3 stops
United Airlines Logo
7:40 am - 6:36 pmGUM-PDX
28h 56m2 stops
$2,203United Airlines
Find Deal
Tue, Oct 21 - Fri, Nov 7
Delta Logo
5:25 pm - 12:10 amPDX-GUM
37h 45m2 stops
Delta Logo
5:00 pm - 11:57 pmGUM-PDX
47h 57m2 stops
$2,271Delta
Find Deal
Mon, Oct 6 - Mon, Oct 20
United Airlines Logo
7:45 pm - 7:00 pmPDX-GUM
29h 15m2 stops
United Airlines Logo
7:40 am - 6:48 pmGUM-PDX
29h 08m2 stops
$2,307United Airlines
Find Deal
Sun, Dec 21 - Fri, Dec 26
Delta Logo
12:40 am - 12:10 amPDX-GUM
30h 30m2 stops
Delta Logo
1:00 am - 10:40 pmGUM-PDX
38h 40m2 stops
$2,329Delta
Find Deal
Sun, Oct 19 - Sun, Oct 26
United Airlines Logo
7:45 pm - 7:00 pmPDX-GUM
29h 15m2 stops
United Airlines Logo
7:40 am - 10:46 pmGUM-PDX
33h 06m3 stops
$2,336United Airlines
Find Deal
Sun, Dec 21 - Fri, Dec 26
United Airlines Logo
3:50 pm - 6:05 pmPDX-GUM
33h 15m3 stops
United Airlines Logo
7:40 am - 6:36 pmGUM-PDX
28h 56m2 stops
$2,354United Airlines
Find Deal
Tue, Oct 21 - Tue, Nov 25
United Airlines Logo
5:30 am - 6:05 pmPDX-GUM
43h 35m3 stops
United Airlines Logo
7:20 pm - 8:38 pmGUM-PDX
42h 18m2 stops
$2,378United Airlines
Find Deal
Sun, Oct 19 - Sun, Oct 26

Delta flights from Portland to Guam

Our best Delta deals on Portland to Guam flight tickets
Delta
Oct 20
PDX5:30 amPortland
25h 40m
2 stops
GUM12:10 amTamuning Guam Intl
Oct 27
GUM4:50 pmTamuning Guam Intl
46h 37m
2 stops
PDX10:27 pmPortland
$1,903
Find similar
Delta
Oct 20
PDX12:40 amPortland
30h 30m
2 stops
GUM12:10 amTamuning Guam Intl
Oct 30
GUM4:50 pmTamuning Guam Intl
46h 37m
2 stops
PDX10:27 pmPortland
$1,953
Find similar
Delta
Oct 18
PDX12:40 amPortland
30h 30m
2 stops
GUM12:10 amTamuning Guam Intl
Oct 25
GUM1:55 amTamuning Guam Intl
31h 50m
2 stops
PDX4:45 pmPortland
$2,003
Find similar

United Airlines flights from Portland to Guam

Our best United Airlines deals on Portland to Guam flight tickets
United Airlines
Oct 21
PDX5:30 amPortland
43h 35m
3 stops
GUM6:05 pmTamuning Guam Intl
Nov 7
GUM7:40 amTamuning Guam Intl
28h 56m
2 stops
PDX6:36 pmPortland
$2,203
Find similar
United Airlines
Dec 21
PDX7:45 pmPortland
29h 15m
2 stops
GUM7:00 pmTamuning Guam Intl
Dec 26
GUM7:40 amTamuning Guam Intl
29h 08m
2 stops
PDX6:48 pmPortland
$2,307
Find similar
United Airlines
Dec 21
PDX7:45 pmPortland
29h 15m
2 stops
GUM7:00 pmTamuning Guam Intl
Dec 26
GUM7:40 amTamuning Guam Intl
33h 06m
3 stops
PDX10:46 pmPortland
$2,336
Find similar

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 September 23, 2025.
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

Mon 10/20

5:30 am-12:10 am

2 stops25h 40m

Tamuning Guam Intl

Mon 10/27

4:50 pm-10:27 pm

2 stops46h 37m

$1,903

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 10/20

12:40 am-12:10 am

2 stops30h 30m

Tamuning Guam Intl

Thu 10/30

4:50 pm-10:27 pm

2 stops46h 37m

$1,953

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 10/18

12:40 am-12:10 am

2 stops30h 30m

Tamuning Guam Intl

Sat 10/25

1:55 am-4:45 pm

2 stops31h 50m

$2,003

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Tue 10/21

5:30 am-6:05 pm

3 stops43h 35m

Tamuning Guam Intl

Fri 11/7

7:40 am-6:36 pm

2 stops28h 56m

$2,203

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 10/6

5:25 pm-12:10 am

2 stops37h 45m

Tamuning Guam Intl

Mon 10/20

5:00 pm-11:57 pm

2 stops47h 57m

$2,271

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 12/21

7:45 pm-7:00 pm

2 stops29h 15m

Tamuning Guam Intl

Fri 12/26

7:40 am-6:48 pm

2 stops29h 08m

$2,307

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 10/19

12:40 am-12:10 am

2 stops30h 30m

Tamuning Guam Intl

Sun 10/26

1:00 am-10:40 pm

2 stops38h 40m

$2,329

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 12/21

7:45 pm-7:00 pm

2 stops29h 15m

Tamuning Guam Intl

Fri 12/26

7:40 am-10:46 pm

3 stops33h 06m

$2,336

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Tue 10/21

3:50 pm-6:05 pm

3 stops33h 15m

Tamuning Guam Intl

Tue 11/25

7:40 am-6:36 pm

2 stops28h 56m

$2,354

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 10/19

5:30 am-6:05 pm

3 stops43h 35m

Tamuning Guam Intl

Sun 10/26

7:20 pm-8:38 pm

2 stops42h 18m

$2,378

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.

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

Direct flights

None
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
DeltaPriceFrom $1,512Free CancellationRating
7.9
7,974 reviews
Search Delta flights
United AirlinesPriceFrom $1,602Free CancellationRating
7.4
8,926 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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Popular flights according to clicks in the last 7 days on momondo
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