Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Portland to Guam from $1,165

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Guam departing on 9/21. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Guam

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:09 am - 2:35 pm
PDX
-
GUM
38h 26m
2 stops
Multiple Airlines Logo
4:35 pm - 7:50 pm
GUM
-
PDX
44h 15m
2 stops
$1,165Multiple Airlines
Mon, Sep 21 - Tue, Sep 29
Multiple Airlines Logo
6:19 am - 2:35 pm
PDX
-
GUM
39h 16m
2 stops
Multiple Airlines Logo
4:35 pm - 4:50 pm
GUM
-
PDX
41h 15m
2 stops
$1,568Multiple Airlines
Mon, Aug 3 - Mon, Sep 7
Multiple Airlines Logo
7:09 am - 2:35 pm
PDX
-
GUM
38h 26m
2 stops
Multiple Airlines Logo
4:35 pm - 10:58 pm
GUM
-
PDX
47h 23m
2 stops
$1,576Multiple Airlines
Wed, Sep 9 - Wed, Sep 16
Multiple Airlines Logo
9:19 am - 2:35 pm
PDX
-
GUM
36h 16m
2 stops
Multiple Airlines Logo
4:35 pm - 7:50 pm
GUM
-
PDX
44h 15m
2 stops
$1,627Multiple Airlines
Mon, Aug 3 - Wed, Sep 9
United Airlines Logo
7:00 am - 6:05 pm
PDX
-
GUM
18h 05m
2 stops
United Airlines Logo
7:10 am - 2:27 pm
GUM
-
PDX
24h 17m
2 stops
$1,819United Airlines
Thu, Oct 8 - Thu, Oct 15
United Airlines Logo
7:29 pm - 6:05 pm
PDX
-
GUM
53h 36m
2 stops
United Airlines Logo
7:35 pm - 2:27 pm
GUM
-
PDX
35h 52m
2 stops
$1,871United Airlines
Sat, Oct 3 - Sun, Oct 11
Multiple Airlines Logo
9:19 am - 2:35 pm
PDX
-
GUM
36h 16m
2 stops
Multiple Airlines Logo
4:35 pm - 4:50 pm
GUM
-
PDX
41h 15m
2 stops
$2,049Multiple Airlines
Fri, Aug 7 - Mon, Sep 7
Multiple Airlines Logo
5:00 am - 3:35 pm
PDX
-
GUM
41h 35m
2 stops
Multiple Airlines Logo
2:00 am - 11:30 pm
GUM
-
PDX
38h 30m
2 stops
$2,094Multiple Airlines
Thu, Aug 6 - Sat, Aug 8
Multiple Airlines Logo
8:19 am - 2:35 pm
PDX
-
GUM
37h 16m
2 stops
Multiple Airlines Logo
4:35 pm - 7:50 pm
GUM
-
PDX
44h 15m
2 stops
$2,109Multiple Airlines
Fri, Aug 7 - Wed, Sep 9
United Airlines Logo
9:00 am - 6:05 pm
PDX
-
GUM
40h 05m
2 stops
United Airlines Logo
7:10 am - 2:27 pm
GUM
-
PDX
24h 17m
2 stops
$2,146United Airlines
Sun, Sep 20 - Thu, Sep 24

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

United Airlines flights from Portland to Guam

Our best United Airlines deals on Portland to Guam flight tickets
United Airlines
Oct 8
PDX7:00 amPortland
18h 05m
2 stops
GUM6:05 pmTamuning Guam Intl
Oct 15
GUM7:10 amTamuning Guam Intl
24h 17m
2 stops
PDX2:27 pmPortland
$1,819
United Airlines
Oct 3
PDX7:29 pmPortland
53h 36m
2 stops
GUM6:05 pmTamuning Guam Intl
Oct 11
GUM7:35 pmTamuning Guam Intl
35h 52m
2 stops
PDX2:27 pmPortland
$1,871
United Airlines
Sep 20
PDX9:00 amPortland
40h 05m
2 stops
GUM6:05 pmTamuning Guam Intl
Sep 24
GUM7:10 amTamuning Guam Intl
24h 17m
2 stops
PDX2:27 pmPortland
$2,146

Delta flights from Portland to Guam

Our best Delta deals on Portland to Guam flight tickets
Delta
Aug 8
PDX5:30 amPortland
25h 25m
2 stops
GUM11:55 pmTamuning Guam Intl
Aug 26
GUM2:00 amTamuning Guam Intl
34h 44m
2 stops
PDX7:44 pmPortland
$2,164
Delta
Aug 8
PDX9:29 amPortland
21h 26m
2 stops
GUM11:55 pmTamuning Guam Intl
Aug 27
GUM2:00 amTamuning Guam Intl
37h 02m
2 stops
PDX10:02 pmPortland
$2,214
Delta
Aug 7
PDX8:24 pmPortland
34h 31m
2 stops
GUM11:55 pmTamuning Guam Intl
Aug 25
GUM2:00 amTamuning Guam Intl
37h 02m
2 stops
PDX10:02 pmPortland
$2,496

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 July 26, 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

Mon 9/21

7:09 am-2:35 pm

2 stops38h 26m

Tamuning Guam Intl

Tue 9/29

4:35 pm-7:50 pm

2 stops44h 15m

$1,165

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 8/3

6:19 am-2:35 pm

2 stops39h 16m

Tamuning Guam Intl

Mon 9/7

4:35 pm-4:50 pm

2 stops41h 15m

$1,568

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 9/9

7:09 am-2:35 pm

2 stops38h 26m

Tamuning Guam Intl

Wed 9/16

4:35 pm-10:58 pm

2 stops47h 23m

$1,576

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 8/3

9:19 am-2:35 pm

2 stops36h 16m

Tamuning Guam Intl

Wed 9/9

4:35 pm-7:50 pm

2 stops44h 15m

$1,627
Quickest round-trip

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 10/8

7:00 am-6:05 pm

2 stops18h 05m

Tamuning Guam Intl

Thu 10/15

7:10 am-2:27 pm

2 stops24h 17m

$1,819

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 10/3

7:29 pm-6:05 pm

2 stops53h 36m

Tamuning Guam Intl

Sun 10/11

7:35 pm-2:27 pm

2 stops35h 52m

$1,871

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 8/7

9:19 am-2:35 pm

2 stops36h 16m

Tamuning Guam Intl

Mon 9/7

4:35 pm-4:50 pm

2 stops41h 15m

$2,049

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 8/6

5:00 am-3:35 pm

2 stops41h 35m

Tamuning Guam Intl

Sat 8/8

2:00 am-11:30 pm

2 stops38h 30m

$2,094

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 8/7

8:19 am-2:35 pm

2 stops37h 16m

Tamuning Guam Intl

Wed 9/9

4:35 pm-7:50 pm

2 stops44h 15m

$2,109

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 9/20

9:00 am-6:05 pm

2 stops40h 05m

Tamuning Guam Intl

Thu 9/24

7:10 am-2:27 pm

2 stops24h 17m

$2,146

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 September instead. Flights to Guam in September, while not as cheap as those in May, 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

18h 05m

Direct flights

None
The fastest flight from Portland to Guam takes 18h 05m
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
10,040 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
Tue 8/25
Tue 9/1
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 $1,183