$588 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 1/10. 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.
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1 adult, Economy, 0 bags

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Flight Deals

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

Mon, Dec 1 - Sun, Dec 28
Multiple Airlines Logo
12:05 pm - 2:20 amSEA-GUM
44h 15m2 stops
Multiple Airlines Logo
9:50 pm - 1:45 pmGUM-SEA
33h 55m1 stop
$1,504Multiple 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 - Sun, Feb 22
Delta Logo
11:25 am - 11:05 pmSEA-GUM
17h 40m1 stop
Delta Logo
1:00 am - 8:46 pmGUM-SEA
37h 46m2 stops
$1,548Delta
Find Deal
Mon, Feb 9 - Mon, Feb 23
Delta Logo
5:00 am - 11:05 pmSEA-GUM
24h 05m2 stops
Delta Logo
4:50 pm - 8:46 pmGUM-SEA
45h 56m2 stops
$1,553Delta
Find Deal
Sun, Mar 1 - Sun, Mar 8
Delta Logo
11:15 am - 11:05 pmSEA-GUM
41h 50m2 stops
Delta Logo
4:50 pm - 1:20 pmGUM-SEA
38h 30m1 stop
$1,558Delta
Find Deal
Sun, Mar 1 - Sun, Mar 8
Delta Logo
7:00 pm - 2:35 pmSEA-GUM
49h 35m2 stops
Delta Logo
4:50 pm - 10:35 pmGUM-SEA
47h 45m2 stops
$1,562Delta
Find Deal
Thu, Feb 26 - Sat, Mar 7
Delta Logo
11:25 am - 11:05 pmSEA-GUM
17h 40m1 stop
Delta Logo
4:50 pm - 1:20 pmGUM-SEA
38h 30m1 stop
$1,594Delta
Find Deal
Thu, Feb 26 - Sat, Mar 7
Delta Logo
5:30 am - 2:35 pmSEA-GUM
39h 05m2 stops
Delta Logo
1:00 am - 1:20 pmGUM-SEA
30h 20m1 stop
$1,598Delta
Find Deal
Mon, Apr 6 - Sat, Apr 18
Delta Logo
6:05 am - 3:15 pmSEA-GUM
40h 10m2 stops
Delta Logo
5:00 pm - 11:26 pmGUM-SEA
47h 26m2 stops
$1,603Delta
Find Deal
Fri, Feb 27 - Sun, Mar 8
Delta Logo
11:15 am - 2:35 pmSEA-GUM
57h 20m2 stops
Delta Logo
4:50 pm - 10:35 pmGUM-SEA
47h 45m2 stops
$1,613Delta
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 June, when the average cost of round-trip tickets is $2,345 and $1,944 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 10 weeks before departure, which saves you about 12% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$588
Most popular time to fly with an average 26% 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 8004 reviews
8.1Boarding
7.9Comfort
8.5Crew
7.9Entertainment
7.3Food
Airline reviews

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

8.0 ExcellentAnonymous, Nov 2025SFO - MSP
Read more Delta reviews

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

Plenty of leg room, temperature was great and staff was excellent. Would do it more often.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Even though we were delayed, we were able to make our connection

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

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

Information on your arrival and departure airports