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Flights from San Francisco (SFO) to Seattle (SEA)

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San Francisco to Seattle Flights

AS

International

18:18

SFO

17 Jan 2026
2h 16m

20:34

SEA

17 Jan 2026
$62.38*
Book Now
UA

International

18:55

SFO

17 Jan 2026
2h 17m

21:12

SEA

17 Jan 2026
$100.02*
Book Now
F9

International

07:00

SFO

17 Jan 2026
7h 43m

14:43

SEA

17 Jan 2026
$112.34*
Book Now
AA

International

18:18

SFO

17 Jan 2026
2h 16m

20:34

SEA

17 Jan 2026
$115.88*
Book Now
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Cheap Flights from San Francisco to Seattle

Fly from San Francisco to Seattle and experience the vibrant charm of the Pacific Northwest. From the Space Needle to Pike Place Market and scenic waterfront views, Seattle blends nature and city life. Start your adventure by comparing fares on Cheapfaremart to find cheap flights from San Francisco to Seattle.

Best Time to Visit Seattle

  • High season (June to August): Enjoy warm weather, exciting festivals, and outdoor activities. Book early to get the best fares.
  • Low season (November to February): Enjoy lower prices and explore Seattle’s acclaimed museums and cafés without crowds. 
  • Shoulder (Mar–May, Sep–Oct): Mild weather, fewer crowds, and affordable flights make this a great time for sightseeing and relaxed exploration.

Airports and Airlines

Flights depart from San Francisco International Airport (SFO) and land at Seattle-Tacoma International Airport (SEA), located about 14 miles (23 km) from downtown Seattle.
Major airlines serving this route include:
  • Alaska Airlines
  • United Airlines
  • Delta Air Lines
  • Southwest Airlines
  • American Airlines

Travel Classes

  • Economy: Enjoy one carry-on, one checked bag, and light snacks for a comfortable flight, ideal for value-conscious travelers.
  • Premium Economy: Upgrade with extra legroom, early boarding, and priority check-in for a smoother trip.
  • Business: Enjoy two checked bags, gourmet meals, priority boarding, and exclusive lounge access for a seamless, premium journey.

Flight Time from San Francisco to Seattle

A nonstop flight from San Francisco to Seattle takes about 2 hours and covers roughly 680 miles (1,094 km). Connecting flights may take 3 to 4 hours, depending on the route and layover time.

FAQs

1. What’s the cheapest month to fly from San Francisco to Seattle?
SFO to Seattle flights are usually cheapest from September to November. 
2. Which airlines offer nonstop flights from San Francisco to Seattle?
Alaska Airlines, Delta Air Lines, and United Airlines offer daily nonstop flights between SFO and SEA.
3. How much baggage can I bring on an economy ticket?
Most airlines allow one carry-on bag (7–10 kg) and one checked bag (23 kg) with your economy ticket. Confirm baggage policies with your selected airline before departure.
4. What are the fare rules for a San Francisco to Seattle flight?
  • Basic: This fare is non-refundable and only includes one small personal item (such as a purse or laptop bag); no carry-on or checked bags are included.
  • Standard: This fare allows one checked bag. Changes to your booking are allowed for a fee, but refunds may not be available.
  • Flex: This fare includes two checked bags. You can get partial refunds and make date changes for no extra charge, though fare differences may apply.
  • Business: This fare is fully refundable, includes two checked bags, offers lounge access, and allows free itinerary changes without penalties.
5. Do I need a visa to fly from San Francisco to Seattle?
No. Both cities are within the United States. Please carry a valid government-issued photo ID for your domestic flight.

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“Terms and Conditions”

Discounts and savings on airfares are calculated based on several factors, including comparison of fares across more than 500 airlines. The quoted pricing reflects our best available fare at the time of search. Coupon codes are valid for applicable discounts on our service fees for eligible bookings. Additional terms may apply to specific offers, which will be disclosed at the time of booking.

Fare Disclosures

  • Unless otherwise specified, all listed fares are for round-trip travel and include applicable fuel surcharges, taxes, fees, and our service fees.

  • Displayed fares are based on historical pricing data and are subject to change.

  • Tickets are nonrefundable, nontransferable, name changes are not permitted, and subject to airline’s fare rules and restrictions.

  • Availability of the quoted fare is more likely on travel dates that fall on Tuesdays, Wednesdays, and Thursdays.

  • These fares may also require an advance purchase of up to 21 days and/or a Saturday night stay.

  • Blackout dates may apply, especially during peak travel periods or holidays. Travel on weekends or holidays may be subject to additional surcharges.

For further details, please review our full Terms and Conditions.

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