United has round-trip flights from Santa Ana, California (SNA) to San Francisco (SFO) for $57, NONSTOP. Flights July to August. No Sunday departures. Extended weekends available. Origin/Destination reversible.
Category: <span>San Francisco</span>
Image Credits: Bernt Rostad, Creative Commons 2.0
Southwest, American, United, and Delta have round-trip flights to/from various destinations in the USA at a discount today for $71-$189, NONSTOP or with a connection. Dates vary, use the linked calendar. Cheapest flights are mostly on Tuesdays, Wednesdays, and Saturdays. Most fares are reversible.
Notes: Most destinations have flights from July to November available. The exact ranges for each destination will vary. Use the Google calendar view to get an idea of what dates work.
Image Credits: Bernt Rostad, Creative Commons 2.0
Alaska Airlines and Hawaiian have round-trip flights from Portland (PDX) to San Francisco (SFO) for $137, NONSTOP. Flights August to November. Extended weekends available. Origin/Destination reversible. No Thanksgiving dates.
Some small OTAs on Skyscanner have this for as low as $119; which is cheaper than the airline. If you plan on booking there, beware of any site that charges a fee to cancel a ticket within the 24-hour “free” period. Use unknown booking sites at your own risk.
Various carriers have round-trip flights to/from Europe at a discount today for $346-$640, NONSTOP or with a connection (see list on our website). Dates vary, use the calendar link in the post.
This list EXCLUDES most LCCs or restricted fares like TAP, SAS, Norse, French Bee, etc…
Most of these flights are between August to March, if it doesn’t automatically pull up, change your calendar search dates to those months.
Flights to/from smaller airports may require a long connection or two stops. When you begin your search, modify your filter to remove fares that have more than one connection, some of those smaller airports ONLY have flights with bad routing.
Some small OTAs on Skyscanner and Google have this for cheaper than the airline. If you plan on booking there, beware of any site that charges a fee to cancel a ticket within the 24-hour “free” period. Use unknown booking sites at your own risk.
There is a good chance that prices continue to drop if more carriers join this sale.
Image Credits: Bernt Rostad, Creative Commons 2.0
Delta and United have round-trip flights from Seattle (SEA) to San Francisco (SFO) for $99-$115, NONSTOP. Flights June to September. Weekends available.
Southwest, American, and Delta have round-trip flights to/from various destinations in the USA at a discount today for $97-$189, NONSTOP or with a connection. Dates vary, use the linked calendar. Flights are mostly on Tuesdays, Wednesdays, and Saturdays. Origin/Destination reversible.
Image Credits: Bernt Rostad, Creative Commons 2.0
Southwest has round-trip flights from Phoenix (PHX) to San Francisco (SFO) for $105-$129, NONSTOP. Flights May to August. Extended weekends available. Origin/Destination reversible.
Image Credits: Bernt Rostad, Creative Commons 2.0
United has round-trip flights from Newark/New York (EWR) to San Francisco (SFO) for $197-$207, NONSTOP. Flights in May. Very few weekends available. Origin/Destination reversible.
Image Credits: Bernt Rostad, Creative Commons 2.0
United and Southwest have round-trip flights from Denver (DEN) to San Francisco (SFO) for $141-$179, NONSTOP. Flights in May, July, and August. Very few weekends available. Origin/Destination reversible.
Most domestic carriers have round-trip flights to/from various destinations in the USA at a discount today for $57-$179, NONSTOP or with a connection. Dates vary, use the linked calendar. Flights are mostly on Tuesdays, Wednesdays, and Saturdays. Origin/Destination reversible.
This list intentionally excludes fares on LCC Breeze/Allegiant/Frontier/Spirit.
There are other destinations available that are priced higher than this range and those may be worthwhile for some of the small remote airports that have stops and don’t usually go on sale. They aren’t part of this list since we’re focusing on the cheapest routes.
Image Credits: Bernt Rostad, Creative Commons 2.0
Delta has round-trip flights from Seattle (SEA) to San Francisco, Los Angeles, San Jose, Sacramento, or Santa Ana (SFO, LAX, SJC, SMF, SNA) for $97-$117, NONSTOP. Flights March to April. Weekends available. Origin/Destination reversible.
A Carry-on bag and also a personal item is allowed for free on Delta. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
Image Credits: Bernt Rostad, Creative Commons 2.0
Frontier has round-trip flights from Denver (DEN) to San Francisco (SFO) for $38-$58, NONSTOP. Flights March to May. Very few weekends available. Origin/Destination reversible.
Image Credits: Bernt Rostad, Creative Commons 2.0
Southwest has round-trip flights from Denver (DEN) to San Francisco, Minneapolis, Kansas City, or El Paso (SFO, MSP, MCI, ELP) for $97-$141, NONSTOP. Flights April to May. A few weekends available. Origin/Destination reversible.
Image Credits: Bernt Rostad, Creative Commons 2.0
JetBlue, American Airlines, and Delta have round-trip flights from New York/Newark (JFK/EWR) to San Francisco, Los Angeles, San Diego, or Houston (SFO, LAX, SAN, IAH) for $177-$224, NONSTOP. Flights February to April. Most destinations have weekends available, except Houston which is mostly midweek. Origin/Destination reversible.
A Carry-on bag and also a personal item is allowed for free. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
Image Credits: Bernt Rostad, Creative Commons 2.0
United and Alaska Airlines have round-trip flights from Portland (PDX) to San Francisco (SFO) for $53-$57, NONSTOP. Flights January to February. Weekends available.
Some small OTAs on Skyscanner have this for as low as $48; which is cheaper than the airline. If you plan on booking there, beware of any site that charges a fee to cancel a ticket within the 24-hour “free” period. Use unknown booking sites at your own risk.
This destination has been at this price since 01/04/2025 @ 05:44 PM CT.
United’s “Basic Economy” fares do not allow for a free carry-on bag. Only a personal item (like a small laptop bag) is free. Seats are randomly assigned for free prior to boarding.
The personal item size on United is smaller (9 x 10 x 17 inches) than Frontier or Spirit (8 x 13 x 18 inches).
Image Credits: Bernt Rostad, Creative Commons 2.0
United has round-trip flights from Atlanta (ATL) to San Francisco (SFO) for $185, NONSTOP. Flights in February. No Sunday departures. Weekends available.
United’s “Basic Economy” fares do not allow for a free carry-on bag. Only a personal item (like a small laptop bag) is free. Seats are randomly assigned for free prior to boarding.
The personal item size on United is smaller (9 x 10 x 17 inches) than Frontier or Spirit (8 x 13 x 18 inches).
Image Credits: Bernt Rostad, Creative Commons 2.0
JetBlue, Delta, United, and Alaska Airlines have round-trip flights from New York/Newark (JFK/EWR) to San Francisco or Seattle (SFO, SEA) for $197, NONSTOP. Flights January to March. Departures on Tuesday, Wednesday, and Saturday. Extended weekends available.
JetBlue’s “Basic” fares allow for a carry-on bag and a small personal item (17 x 13 x 8 inches), like a Jansport SuperBreak backpack without a fee. You can avoid seat selection fees by accepting the randomly assigned seat at the gate.
Image Credits: Bernt Rostad, Creative Commons 2.0
Alaska Airlines has round-trip flights from Burbank or Santa Ana (BUR, SNA) to San Francisco (SFO) for $57, NONSTOP. Flights January to March. Weekends available.
Some small OTAs on Skyscanner have this for as low as $42, which is cheaper than the airline. If you plan on booking there, beware of any site that charges a fee to cancel a ticket within the 24-hour “free” period. Use unknown booking sites at your own risk.
A Carry-on bag and also a personal item is allowed for free. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
Image Credits: Bernt Rostad, Creative Commons 2.0
Alaska Airlines has round-trip flights from Portland (PDX) to San Francisco (SFO) for $57, NONSTOP. Flights January to February. Weekends available.
Some small OTAs on Skyscanner have this for as low as $48; which is cheaper than the airline. If you plan on booking there, beware of any site that charges a fee to cancel a ticket within the 24-hour “free” period. Use unknown booking sites at your own risk.
A Carry-on bag and also a personal item is allowed for free. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.
Image Credits: Bernt Rostad, Creative Commons 2.0
American Airlines has round-trip flights from New York (JFK) to San Francisco (SFO) for $193-$202, NONSTOP. Flights January to March. Departures on Monday, Tuesday, Wednesday, Thursday, and Saturday. Extended weekends available.
A Carry-on bag and also a personal item is allowed for free on American. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.