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$15 Cheap Flights to San Diego International (SAN)

Compare San Diego International Airport flights across hundreds of providers

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Flight deals to San Diego International Airport

Looking for a cheap last-minute deal or the best round-trip flight to San Diego International Airport? If you want to travel to San Diego International Airport next month, round-trip fares start from $40. Find the lowest prices on one-way and round-trip tickets right here.
San Diego.$40 per passenger.Departing Sun, Apr 12, returning Tue, Apr 14.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Phoenix Sky Harbor on Sun, Apr 12, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Tue, Apr 14, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $40, select.
San Diego.$43 per passenger.Departing Sat, May 16, returning Mon, May 18.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Phoenix Sky Harbor on Sat, May 16, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Mon, May 18, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $43, select.
San Diego.$45 per passenger.Departing Wed, Apr 29, returning Mon, May 4.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Phoenix Sky Harbor on Wed, Apr 29, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Mon, May 4, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $45, select.
San Diego.$76 per passenger.Departing Wed, Jun 3, returning Wed, Jun 10.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Phoenix Sky Harbor on Wed, Jun 3, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Wed, Jun 10, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $76, select.
San Diego.$77 per passenger.Departing Wed, May 20, returning Wed, Jun 10.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Phoenix Sky Harbor on Wed, May 20, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Wed, Jun 10, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $77, select.
San Diego.$93 per passenger.Departing Mon, Jul 6, returning Thu, Jul 9.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from San Francisco International on Mon, Jul 6, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Thu, Jul 9, arriving in San Francisco International.Price includes taxes and charges.From $93, select.
San Diego.$98 per passenger.Departing Wed, Jul 29, returning Mon, Aug 3.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from San Francisco International on Wed, Jul 29, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Mon, Aug 3, arriving in San Francisco International.Price includes taxes and charges.From $98, select.
San Diego.$98 per passenger.Departing Mon, Aug 17, returning Wed, Aug 19.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from San Francisco International on Mon, Aug 17, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Wed, Aug 19, arriving in San Francisco International.Price includes taxes and charges.From $98, select.
San Diego.$101 per passenger.Departing Thu, Mar 26, returning Mon, Mar 30.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Harry Reid on Thu, Mar 26, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Mon, Mar 30, arriving in Harry Reid.Price includes taxes and charges.From $101, select.
San Diego.$102 per passenger.Departing Tue, Mar 31, returning Tue, Apr 21.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Denver International on Tue, Mar 31, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Tue, Apr 21, arriving in Denver International.Price includes taxes and charges.From $102, select.
San Diego.$103 per passenger.Departing Sat, Sep 5, returning Tue, Sep 8.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from San Francisco International on Sat, Sep 5, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Tue, Sep 8, arriving in San Francisco International.Price includes taxes and charges.From $103, select.
San Diego.$108 per passenger.Departing Sat, Aug 29, returning Wed, Sep 2.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Phoenix Sky Harbor on Sat, Aug 29, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Wed, Sep 2, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $108, select.
San Diego.$123 per passenger.Departing Wed, Jun 24, returning Thu, Jul 2.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Phoenix Sky Harbor on Wed, Jun 24, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Thu, Jul 2, arriving in Phoenix Sky Harbor.Price includes taxes and charges.From $123, select.
San Diego.$139 per passenger.Departing Mon, Mar 30, returning Mon, May 4.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Denver International on Mon, Mar 30, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Mon, May 4, arriving in Denver International.Price includes taxes and charges.From $139, select.
San Diego.$143 per passenger.Departing Mon, May 18, returning Mon, Jul 13.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Denver International on Mon, May 18, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Mon, Jul 13, arriving in Denver International.Price includes taxes and charges.From $143, select.
San Diego.$181 per passenger.Departing Fri, Apr 24, returning Mon, Jun 8.Round-trip flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departing from Seattle / Tacoma International on Fri, Apr 24, arriving in San Diego International.Inbound direct flight with Southwest Airlines departing from San Diego International on Mon, Jun 8, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $181, select.

Find the cheapest time to fly to San Diego International

Flexible on travel dates? Find the cheapest month – or even day – to fly to San Diego International.
Mar
from $101
Apr
from $40
May
from $43
Jun
from $76
Jul
from $93
Aug
from $98
Sep
from $103
Oct
from $185
Nov
from $190
Dec
from $201
Jan
from $191
Feb
from $190

Airports near San Diego

Compare routes to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier.

San Diego International

3 miles from central San Diego
ClosestCheapest
from $40
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McClellan – Palomar

30 miles from central San Diego
from $234
Search flights

Direct flights to San Diego International

Frequently asked questions

The average flight time to San Diego International is 5 hours and 34 minutes. We've calculated this based on journeys from Washington, D.C..
Southwest Airlines, Alaska Airlines, American Airlines, SkyWest Airlines, Hawaiian Airlines, Qatar Airways, Horizon Air and United all fly non-stop to San Diego International.
The cheapest month to fly to San Diego International is usually April.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
Yes – the average flight time is 3 hours and 32 minutes.
The best price we found for a round-trip flight to San Diego International is $40. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
After crunching the numbers on our flight calendar, we found that the cheapest date to fly to San Diego International Airport is Sunday, April 12, 2026.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to San Diego International.

Discover San Diego International

How to find cheap flights to San Diego International Airport (SAN)

  • The cheapest price currently available for a one-way flight to San Diego International Airport is $15. A round-trip plane ticket to SAN right now is $40.

  • Book when the time is right with Price Alerts. You'll get an email or a push notification on the app if the price of tickets to SAN goes up or down.

  • Lock in a bargain on tickets to San Diego, where San Diego International Airport is located, by booking as early as possible. You're more likely to find a great deal and have a wider selection of flights and departure times.

  • Choose 'Add nearby airports' when searching for a better chance of finding cheap flights to San Diego. This will give you more choices for where you take off and touch down, along with different prices.

  • Consider taking a flight with a stop, as indirect routes are generally cheaper. Simply uncheck the 'Direct flights' box when searching for your plane tickets to San Diego International Airport.

Best time to go to San Diego

  • The cheapest month to jump on a flight to San Diego is typically May.

  • If you're flexible with your dates, use the 'Whole month' tool. It'll help you find the cheapest month, and even day of the year, for flights to SAN.

  • If you want to experience San Diego at its liveliest, lock in your flights to SAN for July. Taking a trip during peak seasons usually means more to see and do than at other times.

  • Travel in May if you'd prefer to avoid the crowds. This is the quietest time of the year and also when plane tickets to San Diego are generally cheaper.

  • With averages of between 63ºF and 82ºF, August is when San Diego is at its warmest. Plan your visit around your preferred weather conditions to make the most of your time here.

  • Ranging from 45ºF to 73ºF, February is when temperatures are lowest.

  • June is the driest month in San Diego. Forget the raincoat and enjoy mostly clear skies.

  • January has the wettest weather. You can expect around four days of rainfall if that's when you'll be there.

Flying to San Diego International Airport (SAN): What you need to know

  • Avoid the layovers and get to San Diego in one easy hop. Lock in a direct flight to San Diego International Airport with one of these popular airlines:

  • Porter Airlines (Canada) Ltd offers the most punctual service. Up to 86% of its flights into this hub touch down as scheduled, making it a great choice when booking your SAN plane ticket.

  • SAN is located in the UTC-7 timezone.

  • Whether you're arriving late or just want the convenience of staying close by, you'll find some comfortable hotels near San Diego International Airport. Kick back at one of these after your flight to SAN:

  • Kick off your San Diego break sooner by grabbing a car rental in SAN. Thrifty, Dollar and Budget are some of the top names to pick from here.

  • Flights departing from San Diego International Airport reach their destination as scheduled 71% of the time. This figure provides a snapshot of the airport's overall punctuality.

Getting to central San Diego from San Diego International Airport (SAN)

San Diego highlights

  • Jump off your flight to San Diego and make your way to these popular attractions:

    • San Diego Zoo: A memorable preview of what the city has to offer, this landmark is around 2 miles north of the center.

    • Japanese Friendship Garden: Here's where you can enjoy a quieter moment when exploring San Diego. You'll find this park roughly 1 mile north of the center.

    • USS Midway Museum: Hit up this landmark next. Around 1 mile west of the city center, it's worth checking out to get the full San Diego experience.

How to get to Oceanside from San Diego International Airport (SAN)

  • Headed to the nearby city of Oceanside? It's about 40 miles from SAN. Allow around 40 minutes to drive there.

  • Expect a journey time of 1 hour 40 minutes or so when making your way to Oceanside on public transport.

Traveling from San Diego International Airport (SAN) to Escondido

  • If Escondido is where you're off to, public transport should take around 1 hour 40 minutes from San Diego International Airport. This city is about 25 miles from SAN.

  • It'll take you 35 minutes or so to drive to Escondido.

Explore more of the United States

  • Up for more adventures? Los Angeles will keep things interesting on your trip through the United States. It's around 110 miles north-west of San Diego and features Hollywood Sign, Griffith Observatory and Hollywood Bowl. The closest airport to this city is Los Angeles International Airport (LAX).

  • Another city in the United States that has plenty of appeal is Long Beach. From San Diego, it's roughly 90 miles north-west and features highlights like SkyThrills! - Fly a Real Fighter Aircraft & Become A Fighter Pilot For A Day! Long Beach, CA and Queen Mary. Add a stop at The Queen Mary too.

  • Make room for new adventures in Anaheim. Roughly 85 miles north-west of San Diego, Disneyland Park, Disney California Adventure Park and Disneyland/California Adventure are reasons to go.

More travel options

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.