Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Portland to Guam from $799

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 6/30. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Portland to Guam

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:41 pm - 2:35 pm
PDX
-
GUM
51h 54m
2 stops
Multiple Airlines Logo
4:35 pm - 4:50 pm
GUM
-
PDX
41h 15m
2 stops
$1,291Multiple Airlines
Thu, Sep 24 - Mon, Sep 28
Multiple Airlines Logo
6:20 am - 2:35 pm
PDX
-
GUM
39h 15m
2 stops
Multiple Airlines Logo
4:35 pm - 10:01 pm
GUM
-
PDX
46h 26m
2 stops
$1,683Multiple Airlines
Tue, Sep 8 - Fri, Sep 25
United Airlines Logo
5:35 am - 6:50 pm
PDX
-
GUM
19h 15m
2 stops
United Airlines Logo
7:25 am - 12:25 pm
GUM
-
PDX
23h 00m
2 stops
$1,819United Airlines
Thu, Nov 5 - Thu, Nov 12
Multiple Airlines Logo
5:30 pm - 2:35 pm
PDX
-
GUM
52h 05m
2 stops
Multiple Airlines Logo
4:35 pm - 4:55 pm
GUM
-
PDX
41h 20m
2 stops
$1,906Multiple Airlines
Wed, Jul 1 - Fri, Jul 10
United Airlines Logo
5:30 am - 6:05 pm
PDX
-
GUM
19h 35m
2 stops
United Airlines Logo
7:05 am - 10:11 am
GUM
-
PDX
20h 06m
2 stops
$1,919United Airlines
Mon, Aug 17 - Mon, Aug 24
United Airlines Logo
7:00 am - 3:50 pm
PDX
-
GUM
39h 50m
2 stops
United Airlines Logo
7:15 am - 10:45 pm
GUM
-
PDX
32h 30m
2 stops
$2,052United Airlines
Sat, Aug 22 - Sat, Aug 29
United Airlines Logo
7:00 am - 6:05 pm
PDX
-
GUM
18h 05m
2 stops
United Airlines Logo
5:00 pm - 12:34 am
GUM
-
PDX
48h 34m
2 stops
$2,053United Airlines
Sun, Aug 16 - Sat, Aug 22
United Airlines Logo
5:35 am - 6:50 pm
PDX
-
GUM
19h 15m
2 stops
United Airlines Logo
7:25 am - 12:25 pm
GUM
-
PDX
23h 00m
2 stops
$2,129United Airlines
Thu, Nov 5 - Mon, Nov 9
United Airlines Logo
5:35 am - 6:50 pm
PDX
-
GUM
19h 15m
3 stops
United Airlines Logo
7:25 am - 12:25 pm
GUM
-
PDX
23h 00m
2 stops
$2,223United Airlines
Thu, Nov 5 - Thu, Nov 12
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
19h 50m
2 stops
United Airlines Logo
7:15 am - 12:50 am
GUM
-
PDX
34h 35m
2 stops
$2,279United Airlines
Mon, Jul 20 - Mon, Jul 27

United Airlines flights from Portland to Guam

Our best United Airlines deals on Portland to Guam flight tickets
United Airlines
Nov 5
PDX5:35 amPortland
19h 15m
2 stops
GUM6:50 pmTamuning Guam Intl
Nov 12
GUM7:25 amTamuning Guam Intl
23h 00m
2 stops
PDX12:25 pmPortland
$1,819
United Airlines
Aug 17
PDX5:30 amPortland
19h 35m
2 stops
GUM6:05 pmTamuning Guam Intl
Aug 24
GUM7:05 amTamuning Guam Intl
20h 06m
2 stops
PDX10:11 amPortland
$1,919
United Airlines
Aug 22
PDX7:00 amPortland
39h 50m
2 stops
GUM3:50 pmTamuning Guam Intl
Aug 29
GUM7:15 amTamuning Guam Intl
32h 30m
2 stops
PDX10:45 pmPortland
$2,052

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 June 3, 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

Thu 9/24

5:41 pm-2:35 pm

2 stops51h 54m

Tamuning Guam Intl

Mon 9/28

4:35 pm-4:50 pm

2 stops41h 15m

$1,291

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Tue 9/8

6:20 am-2:35 pm

2 stops39h 15m

Tamuning Guam Intl

Fri 9/25

4:35 pm-10:01 pm

2 stops46h 26m

$1,683

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 11/5

5:35 am-6:50 pm

2 stops19h 15m

Tamuning Guam Intl

Thu 11/12

7:25 am-12:25 pm

2 stops23h 00m

$1,819

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 7/1

5:30 pm-2:35 pm

2 stops52h 05m

Tamuning Guam Intl

Fri 7/10

4:35 pm-4:55 pm

2 stops41h 20m

$1,906
Quickest round-trip

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 8/17

5:30 am-6:05 pm

2 stops19h 35m

Tamuning Guam Intl

Mon 8/24

7:05 am-10:11 am

2 stops20h 06m

$1,919

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 8/22

7:00 am-3:50 pm

2 stops39h 50m

Tamuning Guam Intl

Sat 8/29

7:15 am-10:45 pm

2 stops32h 30m

$2,052

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 8/16

7:00 am-6:05 pm

2 stops18h 05m

Tamuning Guam Intl

Sat 8/22

5:00 pm-12:34 am

2 stops48h 34m

$2,053

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 11/5

5:35 am-6:50 pm

2 stops19h 15m

Tamuning Guam Intl

Mon 11/9

7:25 am-12:25 pm

2 stops23h 00m

$2,129

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 11/5

5:35 am-6:50 pm

3 stops19h 15m

Tamuning Guam Intl

Thu 11/12

7:25 am-12:25 pm

2 stops23h 00m

$2,223

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 7/20

5:15 am-6:05 pm

2 stops19h 50m

Tamuning Guam Intl

Mon 7/27

7:15 am-12:50 am

2 stops34h 35m

$2,279

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 May, then book flights to Guam from Portland during June instead. Flights to Guam in June, while not as cheap as those in May, still average around $1,602.

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 15m

Direct flights

None
The fastest flight from Portland to Guam takes 19h 15m
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
9,778 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 7/3
Fri 7/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Guam

Popular cities in Guam

Popular flights according to clicks in the last 7 days on momondo
Flights to Tamuningfrom $1,100