$91 Cheap United flights from Sacramento to Seattle (SMF to SEA)

Find The Best Day To Fly from Sacramento to Seattle

Amazing United SMF to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $177 round trip and $91 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Oct 9 - Tue, Oct 14
SMF
Sacramento
SEA
Seattle
$177 Roundtrip, found 1 hour ago
$177
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Oct 9 from Sacramento to Seattle, returning Tue, Oct 14, priced at $177 found 1 hour ago

SEA From SMF Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
The Inn at Virginia Mason

The Inn at Virginia Mason

2.5 out of 5
Save 100% on your flight
per person
Sep 15 - Sep 21
found 1 day ago
Roundtrip flight included
Sacramento (SMF) to Seattle (SEA)
Hotel Theodore

Hotel Theodore

4 out of 5
Save 100% on your flight
per person
Sep 15 - Sep 21
found 1 day ago
Roundtrip flight included
Sacramento (SMF) to Seattle (SEA)
Mediterranean Inn

Mediterranean Inn

3 out of 5
Save 100% on your flight
per person
Sep 15 - Sep 21
found 1 day ago
Roundtrip flight included
Sacramento (SMF) to Seattle (SEA)
Don't see what you're looking for?
See all available trips from Sacramento Intl. to Seattle - Tacoma Intl.
View all trips

Frequently asked questions

Can I catch a flight from Sacramento Intl. Airport (SMF) to Sea-Tac Airport right now?
Ensure you visit the Covid-19 Travel Advisor to see if there are any present travel advice reports and quarantine requirements in effect in SEA when flying in from Sacramento Airport.
What terminal is United Airlines at Sacramento Intl. Airport (SMF)?
As soon as you're given your boarding pass for your United Airlines flight from Sacramento Intl. Airport (SMF) to SEA, check if the terminal details are written on it. If not, get in touch with your airline. They should be able to tell you where you'll be flying into and out of.
Are there United Airlines non-stop flights from SMF to SEA?
You won't find any direct flights between SMF and Sea-Tac Airport with United Airlines. Be prepared to make a stopover if you need to stick to this particular airline and route.
How long is a United Airlines flight from SMF to SEA?
Air traffic and weather permitting, your United Airlines flight from SMF to SEA will take roughly 5 hours and 32 minutes. You'll have enough time to order a glass of wine, get some shut-eye and work on your travel program before you land.
How many direct and indirect flights does United Airlines fly from SMF to SEA?
You can choose from about 5 United Airlines flights each day from SMF to SEA.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to SEA, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Sacramento SMF to Seattle SEA 

To find the best deals on flights to Sacramento from Seattle with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Sacramento SMF to Seattle SEA with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $177 to $177, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Sacramento SMF to Seattle SEA 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Sacramento to Seattle costs from $91. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Seattle SEA from  Sacramento SMF with United 

To find a cheap United flight from Sacramento SMF to Seattle SEA, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Sacramento SMF to Seattle SEA 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as October, or if you book a flight with a stopover. 

 

Find nonstop flights from Sacramento SMF to Seattle SEA with United 

If you’re keen to be on Seattle soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Sacramento SMF to Seattle SEA 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Seattle SEA from  Sacramento SMF with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to Seattle

Coast Gateway Hotel

Coast Gateway Hotel

3.5 out of 5
18415 International Blvd, SeaTac, WA
This hotel features a restaurant, a gym, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and ...
9.2/10 Wonderful! (7,313 reviews)
"Don’t let the appearance surprise you. It overlooks SeaTac but it’s very quiet. The staff was friendly, free parking, breakfast was good. It’s a bit dated but very clean. We would definitely stay there again."

Reviewed on Jul 16, 2025

Coast Gateway Hotel
SureStay Hotel by Best Western SeaTac Airport North

SureStay Hotel by Best Western SeaTac Airport North

3.5 out of 5
3000 S 176th St, SeaTac, WA
This hotel features a restaurant, an indoor pool, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public ...
7.8/10 Good! (1,755 reviews)
"I really appreciated the text feature—I used it twice and it was so helpful. The woman at check in was super friendly and lovely"

Reviewed on Jul 16, 2025

SureStay Hotel by Best Western SeaTac Airport North
Red Roof Inn Seattle Airport - SEATAC

Red Roof Inn Seattle Airport - SEATAC

2 out of 5
16838 International Boulevard, SeaTac, WA
A gym, self parking, and laundry facilities are featured at this hotel. Guests will appreciate perks like free WiFi and a free airport shuttle. There's a safe ...
7.8/10 Good! (4,362 reviews)
"1 mile from airport free shuttle, great coffee in the morning. Everyone very friendly, one night was perfect. We felt safe here."

Reviewed on Jul 16, 2025

Red Roof Inn Seattle Airport - SEATAC
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.