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Guam

$704+ Cheap flights from Portland (PDX) to Guam

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GUM
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
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Cheap flight deals from Portland to Guam

Cheapest flights from Portland to Guam
Explore the most affordable flight options available from Portland to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.

This United Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:58 am
PDX
-
GUM
2 stops38h 07m
United Airlines
Sun 9/65:00 pm
GUM
-
PDX
2 stops48h 53m
United Airlines
Deal found 2/17$1,178
This Expedia deal was found by Cheapflights users on 2/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/19:00 am
PDX
-
GUM
2 stops45h 55m
Multiple Airlines
Wed 4/85:20 pm
GUM
-
PDX
2 stops45h 18m
Multiple Airlines
Deal found 2/14$1,297
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:30 am
PDX
-
GUM
2 stops19h 35m
United Airlines
Thu 4/307:05 am
GUM
-
PDX
2 stops26h 28m
United Airlines
Deal found 2/15$1,819
This Expedia deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/183:42 pm
PDX
-
GUM
2 stops53h 58m
Multiple Airlines
Thu 4/304:40 pm
GUM
-
PDX
2 stops45h 51m
Multiple Airlines
Deal found 2/15$1,820
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:14 pm
PDX
-
GUM
2 stops29h 51m
United Airlines
Thu 4/307:05 am
GUM
-
PDX
2 stops28h 41m
United Airlines
Deal found 2/15$1,835
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/175:30 am
PDX
-
GUM
2 stops19h 35m
United Airlines
Thu 4/307:05 am
GUM
-
PDX
2 stops22h 30m
United Airlines
Deal found 2/15$1,869
This Delta deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3112:30 am
PDX
-
GUM
2 stops30h 25m
Delta
Wed 4/85:20 pm
GUM
-
PDX
2 stops44h 39m
Delta
Deal found 2/17$1,904
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:15 am
PDX
-
GUM
2 stops19h 50m
United Airlines
Mon 8/107:05 am
GUM
-
PDX
2 stops19h 58m
United Airlines
Deal found 2/15$1,919
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1911:00 am
PDX
-
GUM
2 stops38h 05m
United Airlines
Mon 8/107:05 am
GUM
-
PDX
2 stops26h 42m
United Airlines
Deal found 2/15$1,942
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:15 am
PDX
-
GUM
3 stops43h 50m
United Airlines
Wed 8/127:05 am
GUM
-
PDX
2 stops26h 49m
United Airlines
Deal found 2/15$1,943
This United Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:15 am
PDX
-
GUM
2 stops19h 50m
United Airlines
Fri 6/57:05 am
GUM
-
PDX
2 stops30h 49m
United Airlines
Deal found 2/16$1,969
This United Airlines deal was found by Cheapflights users on 2/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1911:00 am
PDX
-
GUM
2 stops38h 05m
United Airlines
Fri 8/147:05 am
GUM
-
PDX
2 stops26h 49m
United Airlines
Deal found 2/15$1,992

Find flight deals from Portland to Guam

Keep the following information in mind while searching for Portland to Guam flight deals. Data was last updated February 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,297
(Expedia)

One-way from

$704
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$797
Provider with most accurate pricing for Portland-Tamuning Guam Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Tamuning Guam Intl flights.
Search Deals
From Portland to Guam
Search Deals
One-way flight from Portland to Guam
Search Deals
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($106 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated February 18, 2026.
Use the filters below to find and compare flights from Portland to Guam that are best for you.

Fly from

Portland

Fly to

Guam

Route

Depart

Return

Price

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 4/1

9:00 am-11:55 pm

2 stops45h 55m

Tamuning Guam Intl

Wed 4/8

5:20 pm-9:38 pm

2 stops45h 18m

$1,297

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Mon 4/20

5:30 am-6:05 pm

2 stops19h 35m

Tamuning Guam Intl

Thu 4/30

7:05 am-12:35 pm

2 stops22h 30m

$1,819

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sat 4/18

3:42 pm-2:40 pm

2 stops53h 58m

Tamuning Guam Intl

Thu 4/30

4:40 pm-9:31 pm

2 stops45h 51m

$1,820

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Sun 4/19

7:14 pm-6:05 pm

2 stops29h 51m

Tamuning Guam Intl

Thu 4/30

7:05 am-6:46 pm

2 stops28h 41m

$1,835

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Fri 4/17

5:30 am-6:05 pm

2 stops19h 35m

Tamuning Guam Intl

Thu 4/30

7:05 am-12:35 pm

2 stops22h 30m

$1,869

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 4/15

5:30 am-3:35 pm

2 stops41h 05m

Tamuning Guam Intl

Wed 4/29

3:00 am-11:56 pm

2 stops37h 56m

$1,904

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Tue 3/31

12:30 am-11:55 pm

2 stops30h 25m

Tamuning Guam Intl

Wed 4/8

5:20 pm-8:59 pm

2 stops44h 39m

$1,904

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 3/19

5:30 am-6:50 pm

2 stops20h 20m

Tamuning Guam Intl

Thu 3/26

7:05 am-11:04 pm

2 stops32h 59m

$2,149

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Thu 4/9

12:30 am-11:55 pm

2 stops30h 25m

Tamuning Guam Intl

Wed 4/15

3:00 am-6:52 pm

2 stops32h 52m

$2,154

PortlandTamuning

PDX - GUM

PDXGUM

Portland

Wed 4/15

5:30 am-6:05 pm

2 stops19h 35m

Tamuning Guam Intl

Sat 4/18

7:05 am-12:25 pm

2 stops22h 20m

$2,179

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

Showing 1-10 of 14 results
1
2

Best time to book a flight from Portland to Guam

Have a flexible travel schedule? Discover the best time to fly to Guam from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Guam

What is the cheapest month to book a flight from Portland to Guam?

Currently, February is the cheapest month in which you can book a flight from Portland to Guam (average of $797). Flying from Portland to Guam in January is currently the most expensive (average of $3,349). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Guam

Get insights into the airlines that provide service to Guam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Guam. Reviews last updated February 18, 2026.
Get a feel of what it's like to fly with United Airlines from Portland to Guam by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,321 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,321 reviews
United Airlines
7.4
Good
9,321 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Portland to Guam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Guam?

    If you book a flight to Guam from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PDX) is located 6.0 mi from the center of Portland.

  • How long is the flight from Portland to Guam?

    A quick flight from Portland to Guam can take about 19h 35m. United Airlines provides one of the quickest options available for as low as $1,819. The distance from Portland to Guam is about 5676 mi.

  • Can I find deals for flights from Portland to Guam that include hotel bookings?

    Yes. In addition to deals on Portland to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Guam?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Guam.

  • Can I find deals for business class flights from Portland to Guam?

    Yes. Cheapflights offers flight deals from Portland to Guam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Guam?

    Currently, February is the cheapest month in which you can book a flight from Portland to Guam (average of $797). Flying from Portland to Guam in January is currently the most expensive (average of $3,349). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Portland to Guam

Discover the top airline that operate flights from Portland to Guam. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,723Average$2,154FlexibilityNo cancel feeOn-time69%

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