$598 Find Cheap Flights from Seattle 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 Seattle to Guam departing on 11/5. 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

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Cheap Flights from Seattle to Guam

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Tamuning
Tamuning1 stop$1,316
Tamuning
Tamuning1 stop$1,316

Book Cheap Seattle 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 Seattle 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 Seattle to Guam

Fri, Oct 24 - Thu, Nov 13
Multiple Airlines Logo
2:55 pm - 11:00 pmSEA-GUM
39h 05m1 stop
Multiple Airlines Logo
2:30 am - 1:55 pmGUM-SEA
29h 25m1 stop
$1,316Multiple Airlines
Find Deal
Fri, Oct 31 - Thu, Nov 6
Multiple Airlines Logo
2:45 pm - 3:00 pmSEA-GUM
31h 15m1 stop
Multiple Airlines Logo
12:20 am - 1:55 pmGUM-SEA
31h 35m1 stop
$1,376Multiple Airlines
Find Deal
Wed, Oct 15 - Tue, Oct 21
Multiple Airlines Logo
2:55 pm - 2:30 pmSEA-GUM
30h 35m1 stop
Multiple Airlines Logo
12:20 am - 11:59 pmGUM-SEA
40h 39m2 stops
$1,385Multiple Airlines
Find Deal
Mon, Feb 9 - Sun, Feb 22
Delta Logo
11:25 am - 11:05 pmSEA-GUM
17h 40m1 stop
Delta Logo
1:00 am - 1:20 pmGUM-SEA
30h 20m1 stop
$1,544Delta
Find Deal
Mon, Feb 9 - Tue, Feb 24
Delta Logo
5:45 am - 11:05 pmSEA-GUM
23h 20m2 stops
Delta Logo
1:00 am - 1:20 pmGUM-SEA
30h 20m1 stop
$1,549Delta
Find Deal
Mon, Feb 9 - Wed, Feb 25
Delta Logo
5:45 am - 11:05 pmSEA-GUM
23h 20m2 stops
Delta Logo
4:50 pm - 8:32 pmGUM-SEA
45h 42m2 stops
$1,553Delta
Find Deal
Mon, Feb 9 - Wed, Feb 25
United Airlines Logo
7:30 pm - 7:05 pmSEA-GUM
29h 35m2 stops
United Airlines Logo
7:40 am - 9:01 pmGUM-SEA
31h 21m3 stops
$1,817United Airlines
Find Deal
Mon, Feb 9 - Mon, Feb 23
United Airlines Logo
6:03 am - 7:05 pmSEA-GUM
19h 02m2 stops
United Airlines Logo
7:00 am - 9:01 pmGUM-SEA
32h 01m3 stops
$1,845United Airlines
Find Deal
Thu, Feb 12 - Sun, Feb 22
United Airlines Logo
5:15 am - 7:05 pmSEA-GUM
19h 50m2 stops
United Airlines Logo
7:40 am - 1:25 pmGUM-SEA
23h 45m2 stops
$1,867United Airlines
Find Deal
Thu, Feb 12 - Sun, Feb 22
United Airlines Logo
5:15 am - 7:05 pmSEA-GUM
19h 50m2 stops
United Airlines Logo
7:40 am - 9:01 pmGUM-SEA
55h 21m3 stops
$1,904United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Guam flights

Get data-powered insights and trends into flights from Seattle 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 Seattle to Guam?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle 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 Seattle to Guam is October, when tickets cost $1,548 (return) on average. On the other hand, the most expensive months are December and February, when the average cost of round-trip tickets is $2,335 and $2,057 respectively.

What’s the cheapest day of the week to fly from Seattle to Guam?

The average price of all round-trip flights from Seattle to Guam clicked on KAYAK for each day over the last 12 months.

For Seattle to Guam, Monday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Guam back to Seattle, the best deals are generally found on Monday, with Friday being the most expensive.

How far in advance should I book a flight from Seattle to Guam?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Guam, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Guam, you should book around 8 weeks before departure, which saves you about 7% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$598
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Seattle to Tamuning

FAQs - booking Guam flights

  • How does KAYAK find such low prices on flights from Seattle 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 Seattle to Guam.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle 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 Seattle 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 Seattle 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 Seattle 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 Seattle to Guam up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Guam?

    The cheapest time of day to fly to Guam is generally in the afternoon, when round-trip flights cost $1,776 on average. Morning departures are around 5% more expensive than evening flights, on average. The most expensive time of day to fly to Guam is generally in the morning, which is peak travel time and where the average cost of a ticket is $1,903.

Reviews of the top airlines flying from Seattle to Guam

 
Need help choosing which airline to fly with from Seattle 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.
7.9
DeltaOverall score based on 7957 reviews
7.9Comfort
8.2Boarding
7.9Entertainment
7.3Food
8.5Crew
Airline reviews

Passengers need to check in big baggage instead of bringing on the plane. That cause inconvenience for everyone. Otherwise flight was good.

8.0 ExcellentTarun, Sep 2025MCO - LHR
Read more Delta reviews

Passengers need to check in big baggage instead of bringing on the plane. That cause inconvenience for everyone. Otherwise flight was good.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Nothing special. The crew never went out of their way for anything.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

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

Information on your arrival and departure airports

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