Flights to Seattle/Tacoma Intl

$90 Cheap flights to Seattle

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Seattle departing on 8/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from the United States to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
2:00 pm - 7:35 pm
SFO
-
SEA
5h 35m
1 stop
Southwest Logo
4:10 pm - 9:20 pm
SEA
-
SFO
5h 10m
1 stop
$164Southwest
Mon, Sep 14 - Tue, Sep 15
Southwest Logo
2:00 pm - 7:35 pm
SFO
-
SEA
5h 35m
1 stop
Southwest Logo
9:15 am - 2:45 pm
SEA
-
SFO
5h 30m
1 stop
$164Southwest
Thu, Sep 17 - Sat, Sep 19
Frontier Logo
7:17 pm - 9:51 am
SFO
-
SEA
14h 34m
1 stop
Frontier Logo
11:06 am - 9:18 pm
SEA
-
SFO
10h 12m
1 stop
$165Frontier
Sat, Oct 24 - Wed, Oct 28
Frontier Logo
6:22 am - 10:00 am
SFO
-
SEA
27h 38m
1 stop
Frontier Logo
12:46 pm - 5:03 pm
SEA
-
SFO
28h 17m
1 stop
$165Frontier
Wed, Oct 21 - Wed, Oct 28
Delta Logo
10:36 am - 12:47 pm
SFO
-
SEA
2h 11mnonstop
Delta Logo
7:20 am - 9:36 am
SEA
-
SFO
2h 16mnonstop
$166Delta
Sat, Aug 29 - Mon, Aug 31
Delta Logo
5:44 pm - 8:04 pm
SFO
-
SEA
2h 20mnonstop
Delta Logo
7:15 am - 9:38 am
SEA
-
SFO
2h 23mnonstop
$167Delta
Mon, Nov 16 - Thu, Nov 19
American Airlines Logo
7:00 am - 12:25 pm
SFO
-
SEA
5h 25m
1 stop
American Airlines Logo
7:10 am - 12:36 pm
SEA
-
SFO
5h 26m
1 stop
$167American Airlines
Wed, Sep 9 - Tue, Sep 15
American Airlines Logo
7:05 am - 1:07 pm
SFO
-
SEA
6h 02m
1 stop
American Airlines Logo
7:10 am - 3:34 pm
SEA
-
SFO
8h 24m
1 stop
$167American Airlines
Tue, Oct 6 - Wed, Oct 7
United Airlines Logo
10:45 pm - 1:15 am
SFO
-
SEA
2h 30mnonstop
United Airlines Logo
7:11 am - 9:30 am
SEA
-
SFO
2h 19mnonstop
$167United Airlines
Fri, Oct 9 - Wed, Oct 14
United Airlines Logo
6:35 pm - 9:01 pm
SFO
-
SEA
2h 26mnonstop
United Airlines Logo
7:11 am - 9:30 am
SEA
-
SFO
2h 19mnonstop
$167United Airlines
Wed, Oct 7 - Sun, Oct 11

momondo Fare Finder

 
Locate flights to Seattle/Tacoma Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 832,500 searches and data was last updated on July 31, 2026.
Use the filters below to find and compare flights to Seattle that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Mon 9/14

2:00 pm-7:35 pm

1 stop5h 35m

Seattle/Tacoma Intl

Tue 9/15

4:10 pm-9:20 pm

1 stop5h 10m

$164

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Thu 9/17

2:00 pm-7:35 pm

1 stop5h 35m

Seattle/Tacoma Intl

Sat 9/19

9:15 am-2:45 pm

1 stop5h 30m

$164

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 10/24

7:17 pm-9:51 am

1 stop14h 34m

Seattle/Tacoma Intl

Wed 10/28

11:06 am-9:18 pm

1 stop10h 12m

$165

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 10/21

6:22 am-10:00 am

1 stop27h 38m

Seattle/Tacoma Intl

Wed 10/28

12:46 pm-5:03 pm

1 stop28h 17m

$165
Quickest round-trip

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Sat 8/29

10:36 am-12:47 pm

Nonstop2h 11m

Seattle/Tacoma Intl

Mon 8/31

7:20 am-9:36 am

Nonstop2h 16m

$166

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Mon 11/16

5:44 pm-8:04 pm

Nonstop2h 20m

Seattle/Tacoma Intl

Thu 11/19

7:15 am-9:38 am

Nonstop2h 23m

$167

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 9/9

7:00 am-12:25 pm

1 stop5h 25m

Seattle/Tacoma Intl

Tue 9/15

7:10 am-12:36 pm

1 stop5h 26m

$167

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Tue 10/6

7:05 am-1:07 pm

1 stop6h 02m

Seattle/Tacoma Intl

Wed 10/7

7:10 am-3:34 pm

1 stop8h 24m

$167

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Fri 10/9

10:45 pm-1:15 am

Nonstop2h 30m

Seattle/Tacoma Intl

Wed 10/14

7:11 am-9:30 am

Nonstop2h 19m

$167

San FranciscoSeattle

SFO - SEA

SFOSEA

San Francisco

Wed 10/7

6:35 pm-9:01 pm

Nonstop2h 26m

Seattle/Tacoma Intl

Sun 10/11

7:11 am-9:30 am

Nonstop2h 19m

$167

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

Seattle flights insights and trends

Explore insights for your Seattle flight to craft the best travel plan

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from United States to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $289. If you don’t want to visit Seattle in October, then you should wait until September to fly from United States, when ticket prices are also cheap, with an average price of $324.

What is the absolute cheapest flight to Seattle?

$92 is the cheapest deal found on momondo in the last two weeks for a flight to Seattle. This flight is from Vancouver and is 66% cheaper than most flights to Seattle. To find the cheapest price to Seattle from your area, use momondo’s Airport-to-Airport Pricing Tool.

See prices from:

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from United States is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $453. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from United States because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $532.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from United States in the evening is the least expensive time of day to depart. momondo users have found prices as low as $410 when looking at flights departing in the evening. Flights to Seattle are more costly at noon, with an average ticket price of $578. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Seattle from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $436 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from United States for as low as $391 on momondo.

Cheapest flights to Seattle/Tacoma Intl

Find the cheapest flights to Seattle/Tacoma Intl from your nearest city or airport
CHEAPEST MONTH TO FLY TO SEATTLE FROM LOS ANGELESMarch19% cheaperFlying from Los Angeles to Seattle costs on average just $206 in March
MOST EXPENSIVE MONTH TO FLY TO SEATTLE FROM LOS ANGELESJune28% more expensiveIt costs about $325 for flights to Seattle from Los Angeles in June
MOST POPULAR MONTH TO FLY TO SEATTLE FROM LOS ANGELESJuly195% more users visitedMore momondo users searched in flights to Seattle from Los Angeles in July than any other month

Cheap Seattle flight deals and tips

Summary info about Seattle flight prices, duration and airlines

Best One-Way Price

$91

Best Round-Trip Price

$164

Fastest flight time

2h 17m

Popular in

July
The best one-way flight price to Seattle from United States in the last 5 days is $91 (San Francisco to Seattle/Tacoma Intl).
The best round-trip flight price to Seattle from United States in the last 5 days is $164 (San Francisco to Seattle/Tacoma Intl).
The fastest flight to Seattle from United States takes 2h 17m (San Francisco to Seattle/Tacoma Intl).
July has the highest demand for flights to Seattle, with a 19% price increase on average.

Frequently asked questions about flying to Seattle

What is there to do in Seattle when it’s raining?

If you are planning a flight to Seattle and are looking to avoid the rain, you should avoid traveling during the months of January, November, and December. These months will typically see 5.1 inches or more of rain, meaning that rain is likely. If you do run into rain while in Seattle, there are still things to do and ways to enjoy your trip. Those looking for a great museum with interesting exhibits should take time out of their trip to Seattle to go see Museum of Pop Culture. Museum of Pop Culture is particularly popular with tourists when the weather in Seattle is not ideal. Shopping centers like Pike Place Market are very popular destinations for those visiting the Seattle area. Pike Place Market is a great place to go if you’re looking to spend some time inside. Popular options when the weather doesn’t cooperate are indoor, family-friendly attractions like aquariums. Seattle has Seattle Aquarium nearby for tourists looking for something to do while avoiding the poor weather.

When is it best to fly to Seattle to go sightseeing?

The city of Seattle has many sights to see while visiting. Many tourists find it ideal to go sightseeing when the weather is warmer, but not blistering. Consider booking your flight to Seattle for October, when temperatures are a bit higher and the chance of rain is relatively low. Many travelers find it worthwhile to visit Pike Place Market, Space Needle, and Seattle Waterfront.

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

You are more likely to see cheaper flights to Seattle from United States when booking 83 days ahead of your departure date. In general, you can expect to find flights to Seattle for around $411 when searching 83 days out. Keep in mind that you might be able to find cheaper flights to Seattle at any time. In fact, our users found flights for as low as $306 in the past 72 hours.

Is there an alternative airport near Seattle?

Those flying to Seattle could potentially find better pricing at Seattle Lake Union Spb Airport (1 mi from Seattle city center), Seattle King County/Boeing Airport (6 mi from Seattle city center), Kenmore Air Harbor Airport (9 mi from Seattle city center), Everett Paine Field Airport (21 mi from Seattle city center) or Lopez Island Airport (66 mi from Seattle city center) depending on the month and departure airport.

Is there a cheaper alternative to flying into Seattle?

With an average price of $182 per person, Seattle Lake Union Spb Airport is the cheapest airport to fly into when planning your trip to Seattle. This price can fluctuate based on where you are flying from. momondo’s Airport-to-Airport Pricing Tool can help users find the best prices.

When did momondo last update prices for flights to Seattle/Tacoma Intl Airport?

Prices for flights to Seattle/Tacoma Intl Airport refresh daily.

How many operators does momondo search for flights to Seattle/Tacoma Intl Airport?

How old do you have to be to fly to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Kent
Lynnwood
Redmond
Lakewood
Puyallup
Tukwila
Federal Way
Fife
Cle Elum
Marysville
Kirkland
Centralia
Shoreline
Lacey

Why use momondo?

Why should I use momondo to find a flight deal to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights to Seattle. Millions of users trust and use momondo every year so you are in good company.

Can I find flights to Seattle with flexible booking policies on momondo?

All flight searches to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to Seattle.

I’m not ready to book a flight to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track flight prices for Seattle and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
Sun 8/30
Sun 9/6

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