Flights from Ontario to Porto (ONT → OPO)

ONT
Ontario
Ontario International Airport, USA
OPO
Porto
Porto Airport, Portugal
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No direct flights found. Here are the 1 fastest 1-stop options.
viaNew York(JFK)
ONT→JFK+1h 30mJFK→OPO
12h 22m
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 Porto? Currently, there are no direct flights from ONT to OPO. 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 → Porto.

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

Try a nearby airport to Ontario

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

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

Or try a nearby airport to Porto

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

ONT → VGO 110 km from OPO Ontario → Vigo Spain · 6 destinations ONT → SCQ 186 km from OPO Ontario → Santiago De Compostela Spain · 29 destinations ONT → LCG 231 km from OPO Ontario → La Coruna Spain · 12 destinations ONT → LIS 277 km from OPO Ontario → Lisbon Portugal · 151 destinations ONT → LEN 292 km from OPO Ontario → Leon Spain · 7 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 Porto (OPO)

Agadir (AGA) Alicante (ALC) Amsterdam (AMS) Asturias (OVD) Athens (ATH) Barcelona (BCN) Bari (BRI) Basel, Switzerland/Mulhouse (BSL) All 134 destinations →