Cheap flights from Newark Airport to San Diego from $109

If you are unable to visit San Diego during the month of January, then departing from Newark Airport during the month September is also very affordable. Most momondo users find prices during this month for around $347.

The cheapest day to depart from Newark Airport to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $369. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $477. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $375. Flights at noon are often more expensive with an average ticket price of $437.

Fly from Newark to San Diego for the best Newark - San Diego flight prices

You are more likely to see cheaper flights to San Diego from Newark Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $407 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Newark Airport for as low as $317 on momondo.

There are 4 cabin classes available to choose from on Newark to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Newark Airport to San Diego.

As of February 2026, prices for Newark Airport to San Diego flights are approximately 9% cheaper when compared to flights at the same time last year.

United Airlines is the most popular carrier operating from Newark to San Diego

United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to San Diego from Newark Airport according to our data. United Airlines is the first choice among our users, with 75% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 6 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

Las Vegas (LAS) was the most common stop: 93% of momondo users choosing 1-stop flights on this route connected there.

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $195.

Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 7h 08m.

Detroit (DTW) has the shortest average layover time for this route: 0h 50m.

The number of flights available between Newark Airport and San Diego is 1 per day as of February 2026. The most frequent departure time is 6:00PM, with 52% of daily flights leaving at noon.

As of February 2026, 12 flights take off from Newark Airport and land in San Diego each week. The most common flight departure day for this route is Mon, with 33% of weekly flights taking off on this day.