$647 Find Cheap Flights from Portland to Guam

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Guam departing on 5/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap Portland to Guam Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Guam that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Guam

Sun, May 17 - Tue, May 26
United Airlines Logo
1:41 pm - 6:05 pm
PDX
-
GUM
35h 24m
2 stops
United Airlines Logo
7:05 am - 4:47 pm
GUM
-
PDX
26h 42m
2 stops
$1,835United Airlines
Sun, May 31 - Sun, Jun 7
United Airlines Logo
5:15 am - 9:45 pm
PDX
-
GUM
23h 30m
2 stops
United Airlines Logo
7:30 pm - 10:48 pm
GUM
-
PDX
44h 18m
2 stops
$1,961United Airlines
Fri, May 22 - Fri, Jun 5
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
19h 50m
2 stops
United Airlines Logo
7:05 am - 12:08 pm
GUM
-
PDX
22h 03m
2 stops
$1,969United Airlines
Thu, Sep 3 - Sat, Sep 12
United Airlines Logo
5:10 am - 6:05 pm
PDX
-
GUM
19h 55m
2 stops
United Airlines Logo
7:15 am - 2:47 pm
GUM
-
PDX
24h 32m
2 stops
$1,989United Airlines
Sat, Jun 13 - Mon, Jun 22
United Airlines Logo
1:14 pm - 6:05 pm
PDX
-
GUM
35h 51m
2 stops
United Airlines Logo
7:15 am - 4:47 pm
GUM
-
PDX
26h 32m
2 stops
$2,006United Airlines
Sat, May 9 - Fri, May 29
Delta Logo
3:30 pm - 11:55 pm
PDX
-
GUM
39h 25m
2 stops
Delta Logo
3:00 am - 9:18 pm
GUM
-
PDX
35h 18m
2 stops
$2,010Delta
Sat, Jun 13 - Mon, Jun 22
United Airlines Logo
5:15 am - 6:05 pm
PDX
-
GUM
43h 50m
3 stops
United Airlines Logo
7:15 am - 10:48 pm
GUM
-
PDX
32h 33m
2 stops
$2,014United Airlines
Thu, May 7 - Thu, May 21
Multiple Airlines Logo
8:45 am - 2:40 pm
PDX
-
GUM
36h 55m
2 stops
Multiple Airlines Logo
4:40 pm - 9:28 pm
GUM
-
PDX
45h 48m
2 stops
$2,028Multiple Airlines
Sat, Jun 27 - Sun, Jul 5
United Airlines Logo
1:14 pm - 6:05 pm
PDX
-
GUM
35h 51m
2 stops
United Airlines Logo
7:15 am - 8:54 pm
GUM
-
PDX
30h 39m
2 stops
$2,033United Airlines
Sun, Jun 28 - Sun, Jul 5
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
$2,039United Airlines
Booking Insights

KAYAK's insights & trends for Portland to Guam flights

Get data-powered insights and trends into flights from Portland to Guam to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Portland to Guam?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Guam, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Guam is September, when tickets cost $1,914 (return) on average. On the other hand, the most expensive months are January and August, when the average cost of round-trip tickets is $3,349 and $2,854 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$647
Best time to beat the crowds but there is an average 45% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Portland to Tamuning

FAQs - booking Guam flights

  • How does KAYAK find such low prices on flights from Portland to Guam?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Guam.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Guam?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Guam is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Guam?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to Guam with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Guam?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to Guam up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Portland to Guam

 
Need help choosing which airline to fly with from Portland to Guam? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9455 reviews
7.3Comfort
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
Airline reviews

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

8.0 ExcellentLaba, Mar 2026
DEN - YEG
Read more United Airlines reviews

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Business class seats felt very cramped compared to other airlines.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

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

Information on your arrival and departure airports

Portland (PDX)