What is the longest flight from ONT?

The longest nonstop route in FlightQ's current ONT schedule set is ONT to TPE, about 6,818 miles with an estimated block time of ~14h 39m.

How are the longest ONT flights ranked?

Routes are ranked by great-circle distance between the origin and destination airports. Flight times are estimates unless a route page has tracked duration data.

Are these guaranteed live routes?

The list is built from FlightQ's current schedule capture. Airlines change timetables often, so always confirm dates and availability before booking.

Where can I fly from?/ONT/Longest flights

Longest flights from ONT

Ontario International Airport in Ontario, United States has 41 nonstop destinations in the current FlightQ schedule set. This page ranks the farthest routes by airport-to-airport distance and adds airlines, frequency, and estimated flight time.

Schedule snapshot checked Jun 15, 2026.

The longest listed nonstop flight from ONT is to , about with an estimated block time of .

Farthest nonstop routes

Longest nonstop flights from ONT
#	Route	Distance	Est. time	Airlines	Frequency
1	ONT to TPE Taipei, Taiwan	6,818 mi	~14h 39m	China, Starlux	1-2/day
2	ONT to HNL Honolulu, United States	2,599 mi	~5h 57m	Alaska Airlines, Southwest Airlines	2-3/day
3	ONT to JFK New York, United States	2,424 mi	~5h 35m	JetBlue Airways	1/day
4	ONT to SAL Santa Clara, El Salvador	2,285 mi	~5h 18m	Avianca	3×/wk
5	ONT to BWI Baltimore, United States	2,278 mi	~5h 17m	Southwest Airlines	1/day
6	ONT to RDU Raleigh, United States	2,187 mi	~5h 6m	Southwest Airlines	weekly
7	ONT to CLT Charlotte, United States	2,073 mi	~4h 52m	American Airlines	1/day
8	ONT to ATL Atlanta, United States	1,895 mi	~4h 30m	Delta Air Lines	2-3/day
9	ONT to CVG Cincinnati, United States	1,850 mi	~4h 24m	Alaska Airlines	weekly
10	ONT to BNA Nashville, United States	1,747 mi	~4h 11m	Southwest Airlines	1/day
11	ONT to MDW Chicago, United States	1,702 mi	~4h 6m	Southwest Airlines	1/day
12	ONT to ORD Chicago, United States	1,696 mi	~4h 5m	United Airlines	1/day
13	ONT to MLM Morelia, Mexico	1,412 mi	~3h 30m	Volaris	2×/wk
14	ONT to HOU Houston, United States	1,342 mi	~3h 21m	Southwest Airlines	1/day
15	ONT to BJX Silao, Mexico	1,335 mi	~3h 20m	Volaris	2×/wk
16	ONT to IAH Houston, United States	1,331 mi	~3h 20m	United Airlines, Frontier Airlines	1-2/day
17	ONT to GDL Guadalajara, Mexico	1,279 mi	~3h 13m	Volaris	2/day
18	ONT to DAL Dallas, United States	1,197 mi	~3h 3m	Southwest Airlines	1-2/day
19	ONT to AUS Austin, United States	1,194 mi	~3h 3m	Southwest Airlines	1-2/day
20	ONT to DFW Dallas, United States	1,186 mi	~3h 2m	American Airlines, Frontier Airlines	7-8/day
21	ONT to SEA Seattle, United States	957 mi	~2h 34m	Alaska Airlines, Delta Air Lines, Frontier Airlines	8-9/day
22	ONT to PDX Portland, United States	839 mi	~2h 19m	Alaska Airlines	3/day
23	ONT to DEN Denver, United States	818 mi	~2h 16m	Southwest Airlines, United Airlines, Frontier Airlines	8-9/day
24	ONT to COS Colorado Springs, United States	788 mi	~2h 13m	Southwest Airlines	weekly
25	ONT to BOI Boise, United States	661 mi	~1h 57m	Alaska Airlines	1/day

Distance is great-circle mileage. Estimated time uses a standard block-time model until a route has enough tracked duration data on its route guide.

Longest flights from ONT

Longest flights from ONT

Farthest nonstop routes

Full route map

FAQ

What is the longest flight from ONT?

How are the longest ONT flights ranked?

Are these guaranteed live routes?