Flights from Ontario to San Diego (ONT → SAN)

ONT
Ontario
Ontario International Airport, USA
SAN
San Diego
San Diego International Airport, USA
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No direct flights found. Here are the 20 fastest 1-stop options.
viaLas Vegas(LAS)
ONT→LAS+1h 30mLAS→SAN
2h 21m
viaPhoenix(PHX)
ONT→PHX+1h 30mPHX→SAN
2h 42m
viaSan Jose(SJC)
ONT→SJC+1h 30mSJC→SAN
2h 55m
viaOakland(OAK)
ONT→OAK+1h 30mOAK→SAN
3h 2m
viaSan Francisco(SFO)
ONT→SFO+1h 30mSFO→SAN
3h 2m
viaSacramento(SMF)
ONT→SMF+1h 30mSMF→SAN
3h 9m
viaSanta Rosa(STS)
ONT→STS+1h 30mSTS→SAN
3h 16m
viaSalt Lake City(SLC)
ONT→SLC+1h 30mSLC→SAN
3h 44m
viaBoise(BOI)
ONT→BOI+1h 30mBOI→SAN
4h 10m
viaDenver(DEN)
ONT→DEN+1h 30mDEN→SAN
4h 40m
viaSan Jose Cabo(SJD)
ONT→SJD+1h 30mSJD→SAN
4h 42m
viaPortland(PDX)
ONT→PDX+1h 30mPDX→SAN
4h 51m
viaSeattle(SEA)
ONT→SEA+1h 30mSEA→SAN
5h 18m
viaAustin(AUS)
ONT→AUS+1h 30mAUS→SAN
5h 58m
viaDallas(DFW)
ONT→DFW+1h 30mDFW→SAN
5h 58m
viaDallas(DAL)
ONT→DAL+1h 30mDAL→SAN
6h
viaHouston(IAH)
ONT→IAH+1h 30mIAH→SAN
6h 29m
viaHouston(HOU)
ONT→HOU+1h 30mHOU→SAN
6h 31m
viaChicago(ORD)
ONT→ORD+1h 30mORD→SAN
7h 58m
viaChicago(MDW)
ONT→MDW+1h 30mMDW→SAN
7h 59m
Search all options on Kiwi.com → Total times include an estimated 90-minute layover. Actual times vary by airline and connection.

Frequently asked questions

Are there direct flights from Ontario to San Diego? Currently, there are no direct flights from ONT to SAN. You may need to connect through another airport.

Related guides for this route

Sibling pages from across Flightmaps — fares, visa rules, country aggregations, and per-airline routes for Ontario → San Diego.

Cheap flights from Ontario to San Diego Cheapest month to fly to San Diego Flights from USA Flights to USA Visa-free with USA passport All airports in USA

Try a nearby airport to Ontario

Flights to San Diego (SAN) from other airports within 350 km of Ontario. Often unlocks cheaper fares or better times.

SNA → SAN 48 km from ONT Santa Ana → San Diego USA · 48 destinations LGB → SAN 57 km from ONT Long Beach → San Diego USA · 18 destinations BUR → SAN 71 km from ONT Burbank → San Diego USA · 31 destinations LAX → SAN 75 km from ONT Los Angeles → San Diego USA · 181 destinations VNY → SAN 84 km from ONT Los Angeles → San Diego USA · 9 destinations

Or try a nearby airport to San Diego

Flights from Ontario (ONT) to other airports within 350 km of San Diego.

ONT → TIJ 29 km from SAN Ontario → Tijuana Mexico · 40 destinations ONT → SNA 122 km from SAN Ontario → Santa Ana USA · 48 destinations ONT → PSP 137 km from SAN Ontario → Palm Springs USA · 30 destinations ONT → LGB 149 km from SAN Ontario → Long Beach USA · 18 destinations ONT → ONT 152 km from SAN Ontario → Ontario USA · 31 destinations

Other flights from Ontario (ONT)

Atlanta (ATL) Austin (AUS) Baltimore (BWI) Boise (BOI) Charlotte (CLT) Chicago (MDW) Chicago (ORD) Dallas (DAL) All 31 destinations →

Other flights from San Diego (SAN)

Albuquerque (ABQ) Amsterdam (AMS) Anchorage (ANC) Atlanta (ATL) Austin (AUS) Baltimore (BWI) Boise (BOI) Boston (BOS) All 87 destinations →