$851+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — GUM
Jun 29 — Jul 61
Round-trip
1 adult, Economy
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Find cheap flights from Portland to Guam with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Guam
Cheapest
Best
Last-minute
One-way
Cheapest flights from Portland to GuamExplore 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 May 30, 2026.
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 May 30, 2026.
This Expedia deal was found by Cheapflights users on 5/25. 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 6/279:19 am
PDX
- GUM
2 stops36h 16m
Multiple Airlines
Mon 7/64:35 pm
GUM
- PDX
2 stops56h 02m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,756
This Expedia deal was found by Cheapflights users on 5/25. 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.
Fri 6/265:30 pm
PDX
- GUM
2 stops52h 05m
Multiple Airlines
Mon 7/64:35 pm
GUM
- PDX
2 stops56h 02m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,763
This Expedia deal was found by Cheapflights users on 5/25. 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 5/305:46 pm
PDX
- GUM
2 stops51h 49m
Multiple Airlines
Sat 6/64:35 pm
GUM
- PDX
2 stops41h 15m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,832
This United Airlines deal was found by Cheapflights users on 5/29. 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 8/175:30 am
PDX
- GUM
2 stops19h 35m
United Airlines
Mon 8/247:05 am
GUM
- PDX
2 stops20h 06m
United Airlines
Deal found 5/29![United Airlines logo]()
$1,919
This Delta deal was found by Cheapflights users on 5/27. 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.
Sun 8/233:00 pm
PDX
- GUM
2 stops39h 55m
Delta
Sun 9/65:20 pm
GUM
- PDX
2 stops40h 54m
Delta
Deal found 5/27![Delta logo]()
$1,959
This United Airlines deal was found by Cheapflights users on 5/27. 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.
Sat 8/223:43 pm
PDX
- GUM
2 stops57h 22m
United Airlines
Sat 9/57:05 am
GUM
- PDX
2 stops20h 06m
United Airlines
Deal found 5/27![United Airlines logo]()
$1,997
This Expedia deal was found by Cheapflights users on 5/27. 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.
Mon 6/15:00 am
PDX
- GUM
2 stops40h 35m
Multiple Airlines
Sat 6/134:35 pm
GUM
- PDX
2 stops41h 20m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$2,016
This United Airlines deal was found by Cheapflights users on 5/28. 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.
Sat 8/225:30 am
PDX
- GUM
2 stops41h 20m
United Airlines
Sat 8/297:15 am
GUM
- PDX
2 stops24h 20m
United Airlines
Deal found 5/28![United Airlines logo]()
$2,052
This United Airlines deal was found by Cheapflights users on 5/28. 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 8/167:00 am
PDX
- GUM
2 stops18h 05m
United Airlines
Sat 8/225:00 pm
GUM
- PDX
2 stops48h 34m
United Airlines
Deal found 5/28![United Airlines logo]()
$2,053
This Expedia deal was found by Cheapflights users on 5/28. 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.
Tue 6/29:44 am
PDX
- GUM
2 stops35h 51m
Multiple Airlines
Thu 6/44:35 pm
GUM
- PDX
2 stops45h 53m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$2,075
This Delta deal was found by Cheapflights users on 5/27. 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 12/15:30 am
PDX
- GUM
2 stops39h 05m
Delta
Sun 12/64:50 pm
GUM
- PDX
2 stops41h 44m
Delta
Deal found 5/27![Delta logo]()
$2,103
This United Airlines deal was found by Cheapflights users on 5/27. 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 11/55:35 am
PDX
- GUM
2 stops19h 15m
United Airlines
Mon 11/97:25 am
GUM
- PDX
2 stops31h 08m
United Airlines
Deal found 5/27![United Airlines logo]()
$2,129
Best flights from Portland to GuamDiscover carefully curated flight deals from Portland to Guam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 30, 2026.
Discover carefully curated flight deals from Portland to Guam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 30, 2026.
This Expedia deal was found by Cheapflights users on 5/25. 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.
Fri 6/265:30 pm
PDX
- GUM
2 stops52h 05m
Multiple Airlines
Mon 7/64:35 pm
GUM
- PDX
2 stops56h 02m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,763
This United Airlines deal was found by Cheapflights users on 5/29. 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 8/275:30 am
PDX
- GUM
2 stops19h 35m
United Airlines
Thu 9/107:10 am
GUM
- PDX
2 stops20h 01m
United Airlines
Deal found 5/29![United Airlines logo]()
$1,919
This Delta deal was found by Cheapflights users on 5/27. 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.
Sun 8/233:00 pm
PDX
- GUM
2 stops39h 55m
Delta
Sun 9/65:20 pm
GUM
- PDX
2 stops40h 54m
Delta
Deal found 5/27![Delta logo]()
$1,959
This United Airlines deal was found by Cheapflights users on 5/29. 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 8/175:30 am
PDX
- GUM
2 stops19h 35m
United Airlines
Mon 8/247:05 am
GUM
- PDX
2 stops20h 06m
United Airlines
Deal found 5/29![United Airlines logo]()
$1,919
This United Airlines deal was found by Cheapflights users on 5/26. 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.
Sat 8/225:30 am
PDX
- GUM
2 stops41h 20m
United Airlines
Sat 8/297:15 am
GUM
- PDX
2 stops30h 48m
United Airlines
Deal found 5/26![United Airlines logo]()
$2,052
This Delta deal was found by Cheapflights users on 5/26. 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 6/96:00 am
PDX
- GUM
2 stops24h 55m
Delta
Thu 6/112:00 am
GUM
- PDX
2 stops38h 46m
Delta
Deal found 5/26![Delta logo]()
$2,854
This United Airlines deal was found by Cheapflights users on 5/27. 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 8/237:00 am
PDX
- GUM
2 stops18h 05m
United Airlines
Sun 9/67:05 am
GUM
- PDX
3 stops20h 06m
United Airlines
Deal found 5/27![United Airlines logo]()
$2,381
This United Airlines deal was found by Cheapflights users on 5/27. 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.
Sat 8/225:30 am
PDX
- GUM
3 stops19h 35m
United Airlines
Sat 9/51:00 pm
GUM
- PDX
2 stops22h 32m
United Airlines
Deal found 5/27![United Airlines logo]()
$2,883
This United Airlines deal was found by Cheapflights users on 5/26. 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.
Tue 6/95:15 am
PDX
- GUM
3 stops43h 50m
United Airlines
Fri 6/127:30 pm
GUM
- PDX
2 stops44h 33m
United Airlines
Deal found 5/26![United Airlines logo]()
$2,931
This United Airlines deal was found by Cheapflights users on 5/27. 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 6/105:15 am
PDX
- GUM
3 stops43h 50m
United Airlines
Sat 6/137:30 pm
GUM
- PDX
2 stops44h 38m
United Airlines
Deal found 5/27![United Airlines logo]()
$2,931
Last-minute flights from Portland to GuamDiscover last-minute flight deals from Portland to Guam. Data last updated May 30, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Guam. Data last updated May 30, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 5/25. 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 5/305:46 pm
PDX
- GUM
2 stops51h 49m
Multiple Airlines
Sat 6/64:35 pm
GUM
- PDX
2 stops41h 15m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,832
This Travelocity deal was found by Cheapflights users on 5/26. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:00 am
PDX
- GUM
2 stops40h 35m
Multiple Airlines
Mon 6/14:35 pm
GUM
- PDX
2 stops45h 53m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$2,350
This Expedia deal was found by Cheapflights users on 5/27. 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.
Mon 6/15:00 am
PDX
- GUM
2 stops40h 35m
Multiple Airlines
Sat 6/134:35 pm
GUM
- PDX
2 stops41h 20m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$2,016
This Expedia deal was found by Cheapflights users on 5/28. 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.
Tue 6/29:44 am
PDX
- GUM
2 stops35h 51m
Multiple Airlines
Thu 6/44:35 pm
GUM
- PDX
2 stops45h 53m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$2,075
This Expedia deal was found by Cheapflights users on 5/28. 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 6/67:25 pm
PDX
- GUM
2 stops50h 10m
Multiple Airlines
Wed 7/224:35 pm
GUM
- PDX
2 stops47h 55m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$2,844
This Expedia deal was found by Cheapflights users on 5/27. 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 6/105:00 am
PDX
- GUM
2 stops40h 35m
Multiple Airlines
Sat 6/134:35 pm
GUM
- PDX
2 stops46h 50m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$2,806
This Delta deal was found by Cheapflights users on 5/28. 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.
Thu 6/115:30 am
PDX
- GUM
2 stops25h 25m
Delta
Sun 6/145:20 pm
GUM
- PDX
2 stops43h 42m
Delta
Deal found 5/28![Delta logo]()
$2,809
This Travelocity deal was found by Cheapflights users on 5/26. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:30 pm
PDX
- GUM
2 stops52h 05m
Multiple Airlines
Wed 7/14:35 pm
GUM
- PDX
2 stops46h 50m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$2,157
This United Airlines deal was found by Cheapflights users on 5/26. 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 6/245:15 am
PDX
- GUM
3 stops41h 30m
United Airlines
Wed 7/17:15 am
GUM
- PDX
2 stops34h 35m
United Airlines
Deal found 5/26![United Airlines logo]()
$2,476
This Expedia deal was found by Cheapflights users on 5/25. 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.
Fri 6/265:30 pm
PDX
- GUM
2 stops52h 05m
Multiple Airlines
Mon 7/64:35 pm
GUM
- PDX
2 stops56h 02m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,763
This Travelocity deal was found by Cheapflights users on 5/27. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:30 pm
PDX
- GUM
2 stops52h 05m
Multiple Airlines
Fri 7/34:35 pm
GUM
- PDX
2 stops46h 50m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$2,138
This Expedia deal was found by Cheapflights users on 5/25. 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 6/279:19 am
PDX
- GUM
2 stops36h 16m
Multiple Airlines
Mon 7/64:35 pm
GUM
- PDX
2 stops56h 02m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,756
One-way flights from Portland to GuamSearch for one-way flight options from Portland to Guam. Find affordable one-way fares based on user searches. Data last updated May 30, 2026.
Search for one-way flight options from Portland to Guam. Find affordable one-way fares based on user searches. Data last updated May 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1612:03 pm
PDX
- GUM
2 stops42h 42m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$851
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 May 30, 2026.
Round-trip from | $1,756 (Expedia) |
|---|---|
One-way from | $851 (Kiwi.com) |
Popular in | January |
Cheapest in | June |
Average price | $1,768 |
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 May 30, 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
Cheapest round-trip
PortlandTamuning
PDX - GUM
PDXGUM
Portland
Fri 6/26
5:30 pm-2:35 pm
2 stops52h 05m
Tamuning Guam Intl
Mon 7/6
4:35 pm-7:37 am
2 stops56h 02m
$1,763
PortlandTamuning
PDX - GUM
PDXGUM
Portland
Thu 8/27
5:30 am-6:05 pm
2 stops19h 35m
Tamuning Guam Intl
Thu 9/10
7:10 am-10:11 am
2 stops20h 01m
$1,919
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
Sun 8/23
3:00 pm-11:55 pm
2 stops39h 55m
Tamuning Guam Intl
Sun 9/6
5:20 pm-5:14 pm
2 stops40h 54m
$1,959
PortlandTamuning
PDX - GUM
PDXGUM
Portland
Sat 8/22
5:30 am-3:50 pm
2 stops41h 20m
Tamuning Guam Intl
Sat 8/29
7:15 am-9:03 pm
2 stops30h 48m
$2,052
Quickest round-trip
PortlandTamuning
PDX - GUM
PDXGUM
Portland
Sun 8/23
7:00 am-6:05 pm
2 stops18h 05m
Tamuning Guam Intl
Sun 9/6
7:05 am-10:11 am
3 stops20h 06m
$2,381
PortlandTamuning
PDX - GUM
PDXGUM
Portland
Tue 6/9
6:00 am-11:55 pm
2 stops24h 55m
Tamuning Guam Intl
Thu 6/11
2:00 am-11:46 pm
2 stops38h 46m
$2,854
PortlandTamuning
PDX - GUM
PDXGUM
Portland
Sat 8/22
5:30 am-6:05 pm
3 stops19h 35m
Tamuning Guam Intl
Sat 9/5
1:00 pm-6:32 pm
2 stops22h 32m
$2,883
PortlandTamuning
PDX - GUM
PDXGUM
Portland
Tue 6/9
5:15 am-6:05 pm
3 stops43h 50m
Tamuning Guam Intl
Fri 6/12
7:30 pm-11:03 pm
2 stops44h 33m
$2,931
PortlandTamuning
PDX - GUM
PDXGUM
Portland
Wed 6/10
5:15 am-6:05 pm
3 stops43h 50m
Tamuning Guam Intl
Sat 6/13
7:30 pm-11:08 pm
2 stops44h 38m
$2,931
Showing 1-10 of 11 resultsSorted by cheapest first
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.
PDX-GUM
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
PDX-GU0
PDX-GUM
No data available for this route at this time. Please check back soon.
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 May 30, 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.
Food
6.6
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Boarding
7.7
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Food
6.6
Comfort
7.3
Crew
8.1
Entertainment
7.1
Overall
7.4
Boarding
7.7
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
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.
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.
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Alternative routes for Portland to Guam
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Complete your trip
Complete your trip to Guam by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Portland to Guam, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Guam flights
Browse other Portland and Guam flight options. Last updated on May 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 May 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,817 | Average$2,084 | FlexibilityNo cancel fee | On-time69% |