The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $119 round trip and $69 one way. Prices and availability subject to change. Additional terms may apply.
For info on any present Seattle, WA (SEA-Seattle - Tacoma Intl.) quarantine requirements and travel advice, visit the Covid-19 Travel Advisor. Look before you arrange your flight, so you don't get caught up.
What terminal is United Airlines at San Francisco Airport?Once you receive the boarding pass for your United Airlines flight from San Francisco Airport to Seattle, WA (SEA-Seattle - Tacoma Intl.), you should be able to see which terminals you'll be jetting in and out of. Your airline will have the answers if you can't find those details on your ticket.
Are there United Airlines non-stop flights from SFO to SEA?United Airlines doesn't fly direct between SFO and Seattle - Tacoma Intl. Airport (SEA), so get ready to make at least one stopover. If you've got enough time between flights, sit down and enjoy a coffee while waiting for your connection.
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 Seattle, WA (SEA-Seattle - Tacoma Intl.), please visit our Customer Service Portal.
Which airlines offer COVID-19 measures and exercise social distancing rules?Alaska Airlines, Delta and Southwest Airlines are just some of the many carriers that employ COVID-19 measures and use social distancing rules on their flights. Some of their strategies are cleaning with disinfectant and providing passenger masks.
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 2020. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Sunday, as data shows the end of the week 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 2020, 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 2020 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2 weeks to 2 months prior to their travel dates.
How can I save money on airline tickets?We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2020 saved nearly 40% when their return flights consisted of two different airlines or fare types.
*According to flight demand on Travelocity.com from January to December 2020. Savings are subject to change based on departure location, date and destination.
| Carrier | Flight | Depart SFO | Arrive SEA | Tue 1/18 | Wed 1/19 | Thu 1/20 | Fri 1/21 | Sat 1/22 | Sun 1/23 | Mon 1/24 | Stops | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UA1541 | 09:12 am | 11:40 am | Check Fare | Check Fare | Check Fare | Check Fare | Check Fare | Check Fare | Check Fare | 0 Stops | |
| UA1006 | 01:08 pm | 03:26 pm | Check Fare | Check Fare | Check Fare | Check Fare | Check Fare | Check Fare | Check Fare | 0 Stops | |
| UA447 | 04:45 pm | 07:07 pm | Check Fare | Check Fare | Check Fare | Check Fare | - | Check Fare | Check Fare | 0 Stops | |
| UA1062 | 07:10 pm | 09:32 pm | Check Fare | Check Fare | Check Fare | Check Fare | Check Fare | Check Fare | Check Fare | 0 Stops | |
To find the best deals on flights to San Francisco from Seattle with United, just enter your travel dates, filter by United, and hit search. You’ll find 4 flights to choose from and can sort by price, flight duration, and arrival or departure time.
If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $119 to $340, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
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 San Francisco to Seattle costs from $69. Prices and availability subject to change. Additional terms may apply.
To find a cheap United flight from San Francisco SFO 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.
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 February, or if you book a flight with a stopover.
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 2 hour(s) 18 min(s) – so you’ll be there before you know it.
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.
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.
Airport Code | Country | Airport Name | Number of Flights |
|---|---|---|---|
| ORD | USA | O'Hare Intl. | 227 |
| DEN | USA | Denver Intl. | 226 |
| IAH | USA | George Bush Intercontinental | 136 |
| IAD | USA | Washington Dulles Intl. | 100 |
| SFO | USA | San Francisco Intl. | 64 |
| LAX | USA | Los Angeles Intl. | 23 |
| EWR | USA | Liberty Intl. | 20 |
| FRA | DEU | Frankfurt Intl. | 19 |
| NRT | JPN | Narita Intl. | 19 |
| PEK | CHN | Capital Intl. | 16 |
Reviewed on Jan 1, 2022
Reviewed on Jan 6, 2022
Reviewed on Nov 27, 2021