United States flag Ontario Airport (ONT)

Country United States | North America | Regional Hub | IATA: ONT | ICAO: KONT | Elevation 944 ft · 288 m | Local time

Destinations
66
Flights / day
125
Busiest route
Denver
Top airline
Southwest Airlines

Ontario Airport averages 125 flights per day to 66 destinations, with 58 domestic routes and eight international routes. A total of 30 airlines operate at ONT, led by Southwest Airlines. This airport provides direct service to six countries across two continents, with Mexico representing its largest international market. The longest nonstop route from Ontario connects to Taipei, with a typical flight time of 13 hr 50 mins. Updated: July 17, 2026

Route Network

Ontario Airport connects 66 destinations worldwide, with Denver standing out as its busiest route. The longest nonstop flight is to Taipei, and the shortest flight is to Tijuana.

United States of America flag Denver (DEN) – United States of America 4 airlines
2 hr 35 mins
818 mi · 1,316 km
10
per day
United States of America flag Seattle (SEA) – United States of America 3 airlines
3 hr 5 mins
957 mi · 1,540 km
10
per day
United States of America flag Phoenix (PHX) – United States of America 3 airlines
1 hr 30 mins
324 mi · 521 km
9
per day
United States of America flag Sacramento (SMF) – United States of America 2 airlines
2 hr 0 mins
390 mi · 627 km
9
per day
United States of America flag Las Vegas (LAS) – United States of America 2 airlines
1 hr 15 mins
197 mi · 317 km
8
per day
United States of America flag Dallas-Fort Worth (DFW) – United States of America 2 airlines
3 hr 15 mins
1,186 mi · 1,908 km
8
per day
United States of America flag Oakland (OAK) – United States of America 2 airlines
2 hr 0 mins
362 mi · 582 km
6
per day
United States of America flag San Jose (SJC) – United States of America 1 airline
1 hr 55 mins
333 mi · 536 km
5
per day
United States of America flag San Francisco (SFO) – United States of America 2 airlines
2 hr 0 mins
363 mi · 585 km
5
per day
United States of America flag Salt Lake City (SLC) – United States of America 2 airlines
2 hr 5 mins
558 mi · 898 km
4
per day
United States of America flag Honolulu (HNL) – United States of America 3 airlines
6 hr 25 mins
2,600 mi · 4,184 km
4
per day
United States of America flag Portland (PDX) – United States of America 1 airline
2 hr 55 mins
839 mi · 1,351 km
3
per day
United States of America flag Atlanta (ATL) – United States of America 1 airline
4 hr 35 mins
1,895 mi · 3,050 km
3
per day
United States of America flag Houston (IAH) – United States of America 3 airlines
3 hr 30 mins
1,331 mi · 2,142 km
3
per day
Mexico flag Guadalajara (GDL) – Mexico 1 airline
3 hr 30 mins
1,279 mi · 2,059 km
2
per day
United States of America flag Dallas (DAL) – United States of America 2 airlines
3 hr 15 mins
1,197 mi · 1,926 km
2
per day
United States of America flag Santa Barbara (SBA) – United States of America 4 airlines
1 hr 30 mins
130 mi · 210 km
2
per day
United States of America flag Chicago (MDW) – United States of America 1 airline
4 hr 15 mins
1,702 mi · 2,740 km
2
per day
United States of America flag San Luis Obispo (SBP) – United States of America 3 airlines
1 hr 35 mins
191 mi · 308 km
2
per day
United States of America flag Austin (AUS) – United States of America 1 airline
3 hr 15 mins
1,194 mi · 1,922 km
1
per day
United States of America flag Bakersfield (BFL) – United States of America 2 airlines
1 hr 25 mins
126 mi · 203 km
1
per day
Taiwan flag Taipei (TPE) – Taiwan 2 airlines
13 hr 50 mins
6,818 mi · 10,973 km
1
per day
United States of America flag Houston (HOU) – United States of America 1 airline
3 hr 35 mins
1,342 mi · 2,160 km
1
per day
United States of America flag New York (JFK) – United States of America 1 airline
5 hr 35 mins
2,424 mi · 3,901 km
1
per day
United States of America flag Baltimore (BWI) – United States of America 1 airline
5 hr 20 mins
2,278 mi · 3,666 km
1
per day
United States of America flag Boise (BOI) – United States of America 1 airline
2 hr 25 mins
661 mi · 1,064 km
1
per day
United States of America flag Charlotte (CLT) – United States of America 1 airline
4 hr 55 mins
2,074 mi · 3,337 km
1
per day
United States of America flag Chicago (ORD) – United States of America 1 airline
4 hr 15 mins
1,697 mi · 2,730 km
1
per day
United States of America flag Fort Worth (AFW) – United States of America 1 airline
3 hr 15 mins
1,169 mi · 1,881 km
1
per day
United States of America flag Nashville (BNA) – United States of America 1 airline
4 hr 20 mins
1,747 mi · 2,811 km
1
per day
United States of America flag Santa Rosa (STS) – United States of America 1 airline
2 hr 5 mins
423 mi · 680 km
1
per day
United States of America flag Kahului (OGG) – United States of America 1 airline
6 hr 15 mins
2,530 mi · 4,071 km
1
per day
United States of America flag Santa Maria (SMX) – United States of America 2 airlines
1 hr 35 mins
173 mi · 278 km
1
per day
Mexico flag Tijuana (TIJ) – Mexico 1 airline
1 hr 10 mins
111 mi · 178 km
1
per day
United States of America flag Lancaster (WJF) – United States of America 2 airlines
1 hr 10 mins
59 mi · 95 km
6
per week
United States of America flag Wilmington (ILN) – United States of America 1 airline
ONT → ILN
6
per week
United States of America flag Blythe (BLH) – United States of America 1 airline
ONT → BLH
5
per week
United States of America flag Inyokern (IYK) – United States of America 1 airline
ONT → IYK
5
per week
United States of America flag Phoenix (DVT) – United States of America 1 airline
1 hr 25 mins
318 mi · 511 km
5
per week
United States of America flag Seattle (BFI) – United States of America 2 airlines
3 hr 5 mins
962 mi · 1,549 km
4
per week
United States of America flag Bishop (BIH) – United States of America 1 airline
ONT → BIH
4
per week
Canada flag Calgary (YYC) – Canada 1 airline
ONT → YYC
3
per week
Mexico flag Morelia (MLM) – Mexico 1 airline
3 hr 45 mins
1,412 mi · 2,273 km
3
per week
United States of America flag San Diego (SAN) – United States of America 2 airlines
1 hr 10 mins
94 mi · 152 km
3
per week
El Salvador flag Santa Clara (SAL) – El Salvador 1 airline
5 hr 20 mins
2,285 mi · 3,677 km
3
per week
Mexico flag Silao (BJX) – Mexico 1 airline
3 hr 35 mins
1,335 mi · 2,148 km
3
per week
United States of America flag Cincinnati (CVG) – United States of America 1 airline
4 hr 30 mins
1,850 mi · 2,977 km
2
per week
United States of America flag Raleigh/Durham (RDU) – United States of America 1 airline
ONT → RDU
2
per week
United States of America flag Bozeman (BZN) – United States of America 1 airline
ONT → BZN
1
per week
United States of America flag Burbank (BUR) – United States of America 1 airline
1 hr 15 mins
44 mi · 72 km
1
per week
United States of America flag Chino (CNO) – United States of America 1 airline
ONT → CNO
1
per week
United States of America flag Dallas (ADS) – United States of America 1 airline
ONT → ADS
1
per week
United States of America flag Dillon (DLN) – United States of America 1 airline
ONT → DLN
1
per week
China flag Ezhou (EHU) – China 1 airline
ONT → EHU
1
per week
United States of America flag Grand Junction (GJT) – United States of America 1 airline
ONT → GJT
1
per week
United States of America flag Hailey (SUN) – United States of America 1 airline
ONT → SUN
1
per week
United States of America flag Imperial (IPL) – United States of America 1 airline
1 hr 10 mins
144 mi · 232 km
1
per week
United States of America flag Mammoth Lakes (MMH) – United States of America 1 airline
ONT → MMH
1
per week
United States of America flag Monterey (MRY) – United States of America 1 airline
1 hr 50 mins
296 mi · 477 km
1
per week
United States of America flag San Diego (MYF) – United States of America 1 airline
1 hr 10 mins
90 mi · 144 km
1
per week
United States of America flag Santa Ana (SNA) – United States of America 1 airline
1 hr 10 mins
30 mi · 49 km
1
per week
United States of America flag Scottsdale (SCF) – United States of America 1 airline
1 hr 30 mins
328 mi · 528 km
1
per week
United States of America flag Trenton (TTN) – United States of America 1 airline
ONT → TTN
1
per week
United States of America flag Upland (CCB) – United States of America 1 airline
ONT → CCB
1
per week
United States of America flag Van Nuys (VNY) – United States of America 1 airline
1 hr 15 mins
52 mi · 84 km
1
per week
United States of America flag Visalia (VIS) – United States of America 1 airline
ONT → VIS
1
per week

Route and destination data updated July 17, 2026.

Ontario Airport is served by 30 airlines, with Southwest Airlines in the lead at 18% of routes. The top three carriers together cover 36% of routes. 16 carriers operate only one route each. A total of seven airlines operate international routes, compared with 23 airlines serving domestic routes. China Airlines is operating the longest nonstop flight, connecting to Taipei with a flight time of 13 hrs 50 mins.

Southwest Airlines (17 routes)
Flexjet (9 routes)
Ameriflight (8 routes)
ATI (7 routes)
Frontier Airlines (6 routes)
Alaska Airlines (6 routes)
West Air (USA) (6 routes)
United Airlines (4 routes)
Delta Air Lines (4 routes)
American Airlines (3 routes)
Volaris (3 routes)
Empire Airlines (2 routes)
NetJets Aviation (2 routes)
WCC (2 routes)
FlightWorks (1 routes)
PlaneSense (1 routes)
Baker Aviation (1 routes)
China Airlines (1 routes)
Starlux Airlines (1 routes)
JetBlue Airways (1 routes)
PPQ (1 routes)
ASI (1 routes)
JRE (1 routes)
Avianca (1 routes)
CFR (1 routes)
China Central Airlines (1 routes)
Nolinor (1 routes)
TIV (1 routes)
Porter Airlines (1 routes)
DLX (1 routes)

Ontario Airport provides direct service to six countries across two continents. The route network is 88% domestic and 12% international. Mexico is the primary international destination.

United States of America - 118/day
Mexico - 4/day
Taiwan - 1/day
Canada - 0/day
El Salvador - 0/day
China - 0/day

Delays

Global  Delays
Delay Performance (24 hour average)
Departures
11 min late
2 min (-18.5%) vs last 24 hours
24h trend
Arrivals
2 min late
6 min (-72.8%) vs last 24 hours
24h trend
Cancelled Departures
0 flights (24 hour total)

Jul 19

2026

21:00 - 22:00

Departure
17 min late
Arrival
7 min early
Cancelled
0

Jul 19

2026

20:00 - 21:00

Departure
8 min late
Arrival
10 min early
Cancelled
0

Jul 19

2026

19:00 - 20:00

Departure
2 min late
Arrival
10 min early
Cancelled
0

Jul 19

2026

18:00 - 19:00

Departure
6 min late
Arrival
9 min early
Cancelled
0

Jul 19

2026

17:00 - 18:00

Departure
5 min late
Arrival
13 min early
Cancelled
0

Jul 19

2026

16:00 - 17:00

Departure
4 min late
Arrival
19 min early
Cancelled
0

Jul 19

2026

15:00 - 16:00

Departure
7 min late
Arrival
18 min early
Cancelled
0

Jul 19

2026

14:00 - 15:00

Departure
9 min late
Arrival
on-time
Cancelled
0

Jul 19

2026

13:00 - 14:00

Departure
8 min late
Arrival
on-time
Cancelled
0

Jul 19

2026

12:00 - 13:00

Departure
on-time
Arrival
3 min late
Cancelled
0

Jul 19

2026

11:00 - 12:00

Departure
on-time
Arrival
on-time
Cancelled
0

Jul 19

2026

10:00 - 11:00

Departure
on-time
Arrival
on-time
Cancelled
0

Jul 19

2026

09:00 - 10:00

Departure
9 min late
Arrival
50 min late
Cancelled
0

Jul 19

2026

08:00 - 09:00

Departure
9 min late
Arrival
37 min late
Cancelled
0

Jul 19

2026

06:00 - 07:00

Departure
5 min late
Arrival
16 min late
Cancelled
0

Jul 19

2026

05:00 - 06:00

Departure
12 min late
Arrival
1 min late
Cancelled
0

Jul 19

2026

04:00 - 05:00

Departure
8 min late
Arrival
5 min late
Cancelled
0

Jul 19

2026

03:00 - 04:00

Departure
21 min late
Arrival
16 min late
Cancelled
0

Jul 19

2026

02:00 - 03:00

Departure
23 min late
Arrival
12 min late
Cancelled
0

Jul 19

2026

00:00 - 01:00

Departure
9 min late
Arrival
3 min late
Cancelled
0

Jul 18

2026

23:00 - 00:00

Departure
24 min late
Arrival
9 min early
Cancelled
0

Jul 18

2026

22:00 - 23:00

Departure
26 min late
Arrival
6 min early
Cancelled
0
Delay Performance (7 day average)
Departures
15 min late
3 min (+28.5%) vs last week
7d trend
Arrivals
7 min late
6 min (+453.4%) vs last week
7d trend
Cancelled Departures
0 flights (7 day total)

Jul 18

2026

Departure
14 min late
Arrival
7 min late
Cancelled
0

Jul 17

2026

Departure
17 min late
Arrival
10 min late
Cancelled
0

Jul 16

2026

Departure
15 min late
Arrival
5 min late
Cancelled
0

Jul 15

2026

Departure
14 min late
Arrival
1 min late
Cancelled
0

Jul 14

2026

Departure
14 min late
Arrival
10 min late
Cancelled
0

Jul 13

2026

Departure
16 min late
Arrival
10 min late
Cancelled
0

Jul 12

2026

Departure
12 min late
Arrival
2 min late
Cancelled
0
Delay Performance (30 day average)
Departures
13 min late
1 min (+5.6%) vs last 30 days
30d trend
Arrivals
5 min late
3 min (+211.1%) vs last 30 days
30d trend
Cancelled Departures
0 flights (30 day total)

Jul 18

2026

Departure
14 min late
Arrival
7 min late
Cancelled
0

Jul 17

2026

Departure
17 min late
Arrival
10 min late
Cancelled
0

Jul 16

2026

Departure
15 min late
Arrival
5 min late
Cancelled
0

Jul 15

2026

Departure
14 min late
Arrival
1 min late
Cancelled
0

Jul 14

2026

Departure
14 min late
Arrival
10 min late
Cancelled
0

Jul 13

2026

Departure
16 min late
Arrival
10 min late
Cancelled
0

Jul 12

2026

Departure
12 min late
Arrival
2 min late
Cancelled
0

Jul 11

2026

Departure
12 min late
Arrival
6 min late
Cancelled
0

Jul 10

2026

Departure
11 min late
Arrival
3 min late
Cancelled
0

Jul 9

2026

Departure
12 min late
Arrival
3 min early
Cancelled
0

Jul 8

2026

Departure
11 min late
Arrival
1 min early
Cancelled
0

Jul 4

2026

Departure
7 min late
Arrival
6 min early
Cancelled
0

Jul 3

2026

Departure
10 min late
Arrival
1 min early
Cancelled
0

Jul 2

2026

Departure
11 min late
Arrival
1 min late
Cancelled
0

Jul 1

2026

Departure
13 min late
Arrival
3 min late
Cancelled
0

Jun 30

2026

Departure
12 min late
Arrival
on-time
Cancelled
0

Jun 29

2026

Departure
8 min late
Arrival
2 min late
Cancelled
0

Jun 28

2026

Departure
13 min late
Arrival
1 min late
Cancelled
0

Jun 27

2026

Departure
16 min late
Arrival
7 min late
Cancelled
0

Jun 26

2026

Departure
12 min late
Arrival
6 min late
Cancelled
0

Jun 25

2026

Departure
14 min late
Arrival
5 min late
Cancelled
0

Jun 24

2026

Departure
16 min late
Arrival
4 min late
Cancelled
0

Jun 23

2026

Departure
14 min late
Arrival
5 min late
Cancelled
0

Jun 22

2026

Departure
14 min late
Arrival
9 min late
Cancelled
0

Jun 21

2026

Departure
13 min late
Arrival
3 min late
Cancelled
0

Jun 20

2026

Departure
17 min late
Arrival
12 min late
Cancelled
0

Jun 19

2026

Departure
14 min late
Arrival
16 min late
Cancelled
0

Global Rankings

Worldwide Position

Flights per day

#239 (125 flights/day)
Top 100 Busiest Airports in the World
Worldwide Position

Most destinations

#323 (66 destinations)
Top 100 Airports with Most Destinations

Runways

Runway Length Width Surface
12,234 ft 3,729 m 151 ft 46 m Concrete
12,234 ft 3,729 m 151 ft 46 m Concrete
10,200 ft 3,109 m 150 ft 46 m Closed
10,223 ft 3,116 m 151 ft 46 m Concrete
10,223 ft 3,116 m 151 ft 46 m Concrete

Runway Length

Runways at Ontario Airport are long enough for all aircraft with known takeoff and landing distances.

Operational Context

Ontario (IATA: ONT) operates around 125 flights per day to 66 nonstop destinations. Its network includes 58 domestic and 8 international routes, with Southwest Airlines as the leading carrier and Denver currently the busiest connection. From ONT, passengers can reach 6 countries across 2 continents, and the longest runway measures 3,729 m (12,234 ft).

Miscellaneous