One Way Flights from Atlanta to Ontario (ATL to ONT)

Discover more affordable routes and cheaper dates from Atlanta to Ontario (ATL to ONT) within a date range.

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US$253

8:00am - 11:50pm
Sun Mar 2nd 2025

18h 50m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 10h 40m

Sun Mar 2nd 2025 Alaska Airlines · AS 1003 Depart at 9:15pm from Seattle (SEA) Fly for 2h 35m Arrive at 11:50pm in Ontario (ONT)

Book Flight
US$253

8:00am - 11:02am
Sun Mar 2nd 2025

30h 2m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 21h 50m

Mon Mar 3rd 2025 Alaska Airlines · AS 1254 Depart at 8:25am from Seattle (SEA) Fly for 2h 37m Arrive at 11:02am in Ontario (ONT)

Book Flight
US$258

8:00am - 11:58pm
Sun Mar 2nd 2025

18h 58m
Atlanta (ATL) → Ontario (ONT)

2 Stops

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 9h 20m

Sun Mar 2nd 2025 Alaska Airlines · AS 958 Depart at 7:55pm from Seattle (SEA) Fly for 0h 55m Arrive at 8:50pm in Portland (PDX)

Layover in Portland for 0h 54m

Sun Mar 2nd 2025 Alaska Airlines · AS 1066 Depart at 9:44pm from Portland (PDX) Fly for 2h 14m Arrive at 11:58pm in Ontario (ONT)

Book Flight
US$270

5:32pm - 11:50pm
Sun Mar 2nd 2025

9h 18m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 497 Depart at 5:32pm from Atlanta (ATL) Fly for 5h 41m Arrive at 8:13pm in Seattle (SEA)

Layover in Seattle for 1h 2m

Sun Mar 2nd 2025 Alaska Airlines · AS 1003 Depart at 9:15pm from Seattle (SEA) Fly for 2h 35m Arrive at 11:50pm in Ontario (ONT)

Book Flight
US$270

8:00am - 3:26pm
Sun Mar 2nd 2025

10h 26m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 2h 24m

Sun Mar 2nd 2025 Alaska Airlines · AS 1097 Depart at 12:59pm from Seattle (SEA) Fly for 2h 27m Arrive at 3:26pm in Ontario (ONT)

Book Flight
US$272

8:00am - 6:19pm
Sun Mar 2nd 2025

13h 19m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 5h 14m

Sun Mar 2nd 2025 Alaska Airlines · AS 1086 Depart at 3:49pm from Seattle (SEA) Fly for 2h 30m Arrive at 6:19pm in Ontario (ONT)

Book Flight
US$303

8:00am - 4:59pm
Sun Mar 2nd 2025

11h 59m
Atlanta (ATL) → Ontario (ONT)

2 Stops

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 1h 1m

Sun Mar 2nd 2025 Alaska Airlines · AS 1039 Depart at 11:36am from Seattle (SEA) Fly for 0h 57m Arrive at 12:33pm in Portland (PDX)

Layover in Portland for 2h 12m

Sun Mar 2nd 2025 Alaska Airlines · AS 2074 Depart at 2:45pm from Portland (PDX) Fly for 2h 14m Arrive at 4:59pm in Ontario (ONT)

Book Flight
US$305

5:32pm - 11:02am
Sun Mar 2nd 2025

20h 30m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 497 Depart at 5:32pm from Atlanta (ATL) Fly for 5h 41m Arrive at 8:13pm in Seattle (SEA)

Layover in Seattle for 12h 12m

Mon Mar 3rd 2025 Alaska Airlines · AS 1254 Depart at 8:25am from Seattle (SEA) Fly for 2h 37m Arrive at 11:02am in Ontario (ONT)

Book Flight
US$305

5:32pm - 6:19pm
Sun Mar 2nd 2025

27h 47m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 497 Depart at 5:32pm from Atlanta (ATL) Fly for 5h 41m Arrive at 8:13pm in Seattle (SEA)

Layover in Seattle for 19h 36m

Mon Mar 3rd 2025 Alaska Airlines · AS 1086 Depart at 3:49pm from Seattle (SEA) Fly for 2h 30m Arrive at 6:19pm in Ontario (ONT)

Book Flight
US$311

8:00am - 11:58pm
Sun Mar 2nd 2025

18h 58m
Atlanta (ATL) → Ontario (ONT)

2 Stops

Sun Mar 2nd 2025 Alaska Airlines · AS 377 Depart at 8:00am from Atlanta (ATL) Fly for 5h 35m Arrive at 10:35am in Seattle (SEA)

Layover in Seattle for 1h 1m

Sun Mar 2nd 2025 Alaska Airlines · AS 1039 Depart at 11:36am from Seattle (SEA) Fly for 0h 57m Arrive at 12:33pm in Portland (PDX)

Layover in Portland for 9h 11m

Sun Mar 2nd 2025 Alaska Airlines · AS 1066 Depart at 9:44pm from Portland (PDX) Fly for 2h 14m Arrive at 11:58pm in Ontario (ONT)

Book Flight
US$327

5:32pm - 3:26pm
Sun Mar 2nd 2025

24h 54m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Alaska Airlines · AS 497 Depart at 5:32pm from Atlanta (ATL) Fly for 5h 41m Arrive at 8:13pm in Seattle (SEA)

Layover in Seattle for 16h 46m

Mon Mar 3rd 2025 Alaska Airlines · AS 1097 Depart at 12:59pm from Seattle (SEA) Fly for 2h 27m Arrive at 3:26pm in Ontario (ONT)

Book Flight
US$328

7:00am - 6:31pm
Sun Mar 2nd 2025

14h 31m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 United Airlines · UA 487 Depart at 7:00am from Atlanta (ATL) Fly for 5h 40m Arrive at 9:40am in San Francisco (SFO)

Layover in San Francisco for 7h 20m

Sun Mar 2nd 2025 United Airlines · UA 5587 Depart at 5:00pm from San Francisco (SFO) Fly for 1h 31m Arrive at 6:31pm in Ontario (ONT)

Book Flight
US$383

9:48pm - 7:26am
Sun Mar 2nd 2025

12h 38m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 2427 Depart at 9:48pm from Atlanta (ATL) Fly for 4h 46m Arrive at 11:34pm in Las Vegas (LAS)

Layover in Las Vegas for 6h 46m

Mon Mar 3rd 2025 Frontier Airlines · F9 4757 Depart at 6:20am from Las Vegas (LAS) Fly for 1h 6m Arrive at 7:26am in Ontario (ONT)

Book Flight
US$383

12:35pm - 12:09am
Sun Mar 2nd 2025

14h 34m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 3293 Depart at 12:35pm from Atlanta (ATL) Fly for 3h 35m Arrive at 2:10pm in Denver (DEN)

Layover in Denver for 8h 27m

Sun Mar 2nd 2025 Frontier Airlines · F9 1499 Depart at 10:37pm from Denver (DEN) Fly for 2h 32m Arrive at 12:09am in Ontario (ONT)

Book Flight
US$383

9:23pm - 10:25am
Sun Mar 2nd 2025

16h 2m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 1449 Depart at 9:23pm from Atlanta (ATL) Fly for 3h 41m Arrive at 11:04pm in Denver (DEN)

Layover in Denver for 9h 48m

Mon Mar 3rd 2025 Frontier Airlines · F9 1261 Depart at 8:52am from Denver (DEN) Fly for 2h 33m Arrive at 10:25am in Ontario (ONT)

Book Flight
US$383

9:48pm - 3:19pm
Sun Mar 2nd 2025

20h 31m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 2427 Depart at 9:48pm from Atlanta (ATL) Fly for 4h 46m Arrive at 11:34pm in Las Vegas (LAS)

Layover in Las Vegas for 14h 36m

Mon Mar 3rd 2025 Frontier Airlines · F9 2231 Depart at 2:10pm from Las Vegas (LAS) Fly for 1h 9m Arrive at 3:19pm in Ontario (ONT)

Book Flight
US$383

12:35pm - 10:25am
Sun Mar 2nd 2025

24h 50m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 3293 Depart at 12:35pm from Atlanta (ATL) Fly for 3h 35m Arrive at 2:10pm in Denver (DEN)

Layover in Denver for 18h 42m

Mon Mar 3rd 2025 Frontier Airlines · F9 1261 Depart at 8:52am from Denver (DEN) Fly for 2h 33m Arrive at 10:25am in Ontario (ONT)

Book Flight
US$383

3:08pm - 1:43pm
Sun Mar 2nd 2025

25h 35m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 2399 Depart at 3:08pm from Atlanta (ATL) Fly for 2h 36m Arrive at 4:44pm in Houston (IAH)

Layover in Houston for 19h 23m

Mon Mar 3rd 2025 Frontier Airlines · F9 3131 Depart at 12:07pm from Houston (IAH) Fly for 3h 36m Arrive at 1:43pm in Ontario (ONT)

Book Flight
US$383

9:48pm - 8:35pm
Sun Mar 2nd 2025

25h 47m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 2427 Depart at 9:48pm from Atlanta (ATL) Fly for 4h 46m Arrive at 11:34pm in Las Vegas (LAS)

Layover in Las Vegas for 19h 57m

Mon Mar 3rd 2025 Frontier Airlines · F9 1357 Depart at 7:31pm from Las Vegas (LAS) Fly for 1h 4m Arrive at 8:35pm in Ontario (ONT)

Book Flight
US$383

9:23pm - 12:09am
Sun Mar 2nd 2025

29h 46m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 1449 Depart at 9:23pm from Atlanta (ATL) Fly for 3h 41m Arrive at 11:04pm in Denver (DEN)

Layover in Denver for 23h 33m

Mon Mar 3rd 2025 Frontier Airlines · F9 1499 Depart at 10:37pm from Denver (DEN) Fly for 2h 32m Arrive at 12:09am in Ontario (ONT)

Book Flight
US$406

5:17am - 6:19pm
Sun Mar 2nd 2025

16h 2m
Atlanta (ATL) → Ontario (ONT)

2 Stops

Sun Mar 2nd 2025 Alaska Airlines · AS 4004 Depart at 5:17am from Atlanta (ATL) Fly for 2h 35m Arrive at 6:52am in Dallas (DFW)

Layover in Dallas for 3h 8m

Sun Mar 2nd 2025 Alaska Airlines · AS 573 Depart at 10:00am from Dallas (DFW) Fly for 4h 30m Arrive at 12:30pm in Seattle (SEA)

Layover in Seattle for 3h 19m

Sun Mar 2nd 2025 Alaska Airlines · AS 1086 Depart at 3:49pm from Seattle (SEA) Fly for 2h 30m Arrive at 6:19pm in Ontario (ONT)

Book Flight
US$424

5:17am - 3:26pm
Sun Mar 2nd 2025

13h 9m
Atlanta (ATL) → Ontario (ONT)

2 Stops

Sun Mar 2nd 2025 Alaska Airlines · AS 4004 Depart at 5:17am from Atlanta (ATL) Fly for 2h 35m Arrive at 6:52am in Dallas (DFW)

Layover in Dallas for 1h 8m

Sun Mar 2nd 2025 Alaska Airlines · AS 543 Depart at 8:00am from Dallas (DFW) Fly for 4h 30m Arrive at 10:30am in Seattle (SEA)

Layover in Seattle for 2h 29m

Sun Mar 2nd 2025 Alaska Airlines · AS 1097 Depart at 12:59pm from Seattle (SEA) Fly for 2h 27m Arrive at 3:26pm in Ontario (ONT)

Book Flight
US$436

5:27pm - 9:59pm
Sun Mar 2nd 2025

7h 32m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 United Airlines · UA 230 Depart at 5:27pm from Atlanta (ATL) Fly for 2h 28m Arrive at 6:55pm in Houston (IAH)

Layover in Houston for 1h 20m

Sun Mar 2nd 2025 United Airlines · UA 1563 Depart at 8:15pm from Houston (IAH) Fly for 3h 44m Arrive at 9:59pm in Ontario (ONT)

Book Flight
US$443

11:07am - 11:58pm
Sun Mar 2nd 2025

15h 51m
Atlanta (ATL) → Ontario (ONT)

2 Stops

Sun Mar 2nd 2025 Alaska Airlines · AS 6048 Depart at 11:07am from Atlanta (ATL) Fly for 2h 31m Arrive at 12:38pm in Dallas (DFW)

Layover in Dallas for 3h 17m

Sun Mar 2nd 2025 Alaska Airlines · AS 303 Depart at 3:55pm from Dallas (DFW) Fly for 4h 20m Arrive at 6:15pm in Portland (PDX)

Layover in Portland for 3h 29m

Sun Mar 2nd 2025 Alaska Airlines · AS 1066 Depart at 9:44pm from Portland (PDX) Fly for 2h 14m Arrive at 11:58pm in Ontario (ONT)

Book Flight
US$447

5:45am - 8:35pm
Sun Mar 2nd 2025

17h 50m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 1115 Depart at 5:45am from Atlanta (ATL) Fly for 4h 40m Arrive at 7:25am in Las Vegas (LAS)

Layover in Las Vegas for 12h 6m

Sun Mar 2nd 2025 Frontier Airlines · F9 1357 Depart at 7:31pm from Las Vegas (LAS) Fly for 1h 4m Arrive at 8:35pm in Ontario (ONT)

Book Flight
US$447

5:45am - 7:26am
Sun Mar 2nd 2025

28h 41m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 Frontier Airlines · F9 1115 Depart at 5:45am from Atlanta (ATL) Fly for 4h 40m Arrive at 7:25am in Las Vegas (LAS)

Layover in Las Vegas for 22h 55m

Mon Mar 3rd 2025 Frontier Airlines · F9 4757 Depart at 6:20am from Las Vegas (LAS) Fly for 1h 6m Arrive at 7:26am in Ontario (ONT)

Book Flight
US$454

11:22am - 9:59pm
Sun Mar 2nd 2025

13h 37m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 United Airlines · UA 693 Depart at 11:22am from Atlanta (ATL) Fly for 2h 28m Arrive at 12:50pm in Houston (IAH)

Layover in Houston for 7h 25m

Sun Mar 2nd 2025 United Airlines · UA 1563 Depart at 8:15pm from Houston (IAH) Fly for 3h 44m Arrive at 9:59pm in Ontario (ONT)

Book Flight
US$488

6:45am - 8:55pm
Sun Mar 2nd 2025

17h 10m
Atlanta (ATL) → Ontario (ONT)

2 Stops

Sun Mar 2nd 2025 United Airlines · UA 275 Depart at 6:45am from Atlanta (ATL) Fly for 2h 18m Arrive at 8:03am in Chicago (ORD)

Layover in Chicago for 4h 42m

Sun Mar 2nd 2025 United Airlines · UA 1491 Depart at 12:45pm from Chicago (ORD) Fly for 2h 54m Arrive at 2:39pm in Denver (DEN)

Layover in Denver for 4h 49m

Sun Mar 2nd 2025 United Airlines · UA 351 Depart at 7:28pm from Denver (DEN) Fly for 2h 27m Arrive at 8:55pm in Ontario (ONT)

Book Flight
US$490

6:45am - 8:55pm
Sun Mar 2nd 2025

17h 10m
Atlanta (ATL) → Ontario (ONT)

2 Stops

Sun Mar 2nd 2025 United Airlines · UA 275 Depart at 6:45am from Atlanta (ATL) Fly for 2h 18m Arrive at 8:03am in Chicago (ORD)

Layover in Chicago for 2h 37m

Sun Mar 2nd 2025 United Airlines · UA 1803 Depart at 10:40am from Chicago (ORD) Fly for 2h 57m Arrive at 12:37pm in Denver (DEN)

Layover in Denver for 6h 51m

Sun Mar 2nd 2025 United Airlines · UA 351 Depart at 7:28pm from Denver (DEN) Fly for 2h 27m Arrive at 8:55pm in Ontario (ONT)

Book Flight
US$511

3:48pm - 9:59pm
Sun Mar 2nd 2025

9h 11m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 United Airlines · UA 6131 Depart at 3:48pm from Atlanta (ATL) Fly for 2h 35m Arrive at 5:23pm in Houston (IAH)

Layover in Houston for 2h 52m

Sun Mar 2nd 2025 United Airlines · UA 1563 Depart at 8:15pm from Houston (IAH) Fly for 3h 44m Arrive at 9:59pm in Ontario (ONT)

Book Flight
US$580

4:25pm - 8:55pm
Sun Mar 2nd 2025

7h 30m
Atlanta (ATL) → Ontario (ONT)

1 Stop

Sun Mar 2nd 2025 United Airlines · UA 235 Depart at 4:25pm from Atlanta (ATL) Fly for 3h 38m Arrive at 6:03pm in Denver (DEN)

Layover in Denver for 1h 25m

Sun Mar 2nd 2025 United Airlines · UA 351 Depart at 7:28pm from Denver (DEN) Fly for 2h 27m Arrive at 8:55pm in Ontario (ONT)

Book Flight

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@sarahbb1

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ANDY TRAVELS

@andy_travels

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@travelwitbender

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One Way Flights from Atlanta to Ontario (ATL to ONT)

Sarah Belizaire

John Ford

Roaming Sonaa

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Travel With Bender

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