$126+ Cheap flights from Portland, ME to San Francisco (PWM - SFO)

There are many flights that can get you from Portland, Maine to San Francisco in 9h 06m. Fly via United Airlines, Delta, or American Airlines to get the fastest option. Portland, Maine and San Francisco are separated by a distance of 2715 mi. This flight may include one or multiple stops.

American Airlines, at $234, was found to be the cheapest airline from Portland, Maine to San Francisco.Alternate airlines to your destination round-trip include Southwest and United Airlines. Users have found that American Airlines is 45% cheaper than the other options available to this destination.

The cheapest airlines for a one-way flight from Portland, Maine to San Francisco are United Airlines ($126), Delta ($129), and American Airlines ($131).

Yes. In addition to deals on Portland to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to San Francisco.

Yes. Cheapflights offers flight deals from Portland to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Currently, March is the cheapest month in which you can book a flight from Portland, Maine to San Francisco (average of $98). Flying from Portland, Maine to San Francisco in October is currently the most expensive (average of $178). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.