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Atlanta → Ontario

Dec 5, 2026 · return Dec 8, 2026

ATL → ONT1 adulteconomyRound trip

8 flight options · 4 airlines

Nonstop flights

Sat, Dec 5 – Tue, Dec 8

Delta Air Lines
7:15 pmATL
4h 39m
Nonstop
8:54 pmONT
Delta Air Lines
7:05 amONT
4h
Nonstop
2:05 pmATL

Round-trip total · 1 adult · Taxes included

Sat, Dec 5 – Tue, Dec 8

Delta Air Lines
9:18 amATL
4h 49m
Nonstop
11:07 amONT
Delta Air Lines
7:05 amONT
4h
Nonstop
2:05 pmATL

Round-trip total · 1 adult · Taxes included

One-stop flights

Sat, Dec 5 – Tue, Dec 8

Frontier Airlines
1:55 pmATL
7h 20m
DFW · 1h 24m
6:15 pmONT
Delta Air Lines
7:05 amONT
4h
Nonstop
2:05 pmATL

Round-trip total · 1 adult · Taxes included

Sat, Dec 5 – Tue, Dec 8

Southwest Airlines
10:05 amATL
7h
DEN · 1h 10m
2:05 pmONT
Southwest Airlines
8:40 amONT
6h 10m
PHX · 1h 20m
5:50 pmATL

Round-trip total · 1 adult · Taxes included

Sat, Dec 5 – Tue, Dec 8

American Airlines
5:40 pmATL
7h 12m
PHX · 1h 42m
9:52 pmONT
American Airlines
6:20 amONT
6h 13m
PHX · 1h 6m
3:33 pmATL

Round-trip total · 1 adult · Taxes included

Sat, Dec 5 – Tue, Dec 8

Southwest Airlines
6:15 amATL
7h 30m
DAL · 2h 10m
10:45 amONT
Southwest Airlines
8:40 amONT
6h 10m
PHX · 1h 20m
5:50 pmATL

Round-trip total · 1 adult · Taxes included

Sat, Dec 5 – Tue, Dec 8

Southwest Airlines
8:20 pmATL
6h 35m
LAS · 1h
11:55 pmONT
Southwest Airlines
8:40 amONT
6h 10m
PHX · 1h 20m
5:50 pmATL

Round-trip total · 1 adult · Taxes included

Sat, Dec 5 – Tue, Dec 8

Delta Air Lines
8:05 amATL
7h 12m
SLC · 1h 15m
12:17 pmONT
Delta Air Lines
7:05 amONT
4h
Nonstop
2:05 pmATL

Round-trip total · 1 adult · Taxes included

Make this trip yours

ATL ⇄ ONT

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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More dates

All dates for this routeOct 30, 2026 → Nov 2, 2026Oct 31, 2026 → Nov 7, 2026Nov 13, 2026 → Nov 16, 2026Nov 14, 2026 → Nov 21, 2026Nov 24, 2026 → Nov 29, 2026Nov 27, 2026 → Nov 30, 2026Nov 28, 2026 → Dec 5, 2026Dec 11, 2026 → Dec 14, 2026Dec 12, 2026 → Dec 19, 2026Dec 22, 2026 → Dec 27, 2026Dec 25, 2026 → Dec 28, 2026Dec 26, 2026 → Jan 2, 2027Dec 30, 2026 → Jan 2, 2027Jan 8, 2027 → Jan 11, 2027Jan 9, 2027 → Jan 16, 2027Jan 15, 2027 → Jan 18, 2027Jan 22, 2027 → Jan 25, 2027Jan 23, 2027 → Jan 30, 2027Feb 5, 2027 → Feb 8, 2027Feb 6, 2027 → Feb 13, 2027Feb 12, 2027 → Feb 15, 2027Mar 5, 2027 → Mar 8, 2027Mar 6, 2027 → Mar 13, 2027Mar 25, 2027 → Mar 29, 2027Apr 2, 2027 → Apr 5, 2027Apr 3, 2027 → Apr 10, 2027Apr 30, 2027 → May 3, 2027May 1, 2027 → May 8, 2027May 28, 2027 → May 31, 2027May 29, 2027 → Jun 5, 2027Jun 25, 2027 → Jun 28, 2027Jun 26, 2027 → Jul 3, 2027Jul 2, 2027 → Jul 6, 2027Jul 23, 2027 → Jul 26, 2027Jul 24, 2027 → Jul 31, 2027Aug 20, 2027 → Aug 23, 2027Aug 21, 2027 → Aug 28, 2027Sep 3, 2027 → Sep 6, 2027Sep 17, 2027 → Sep 20, 2027Oct 30, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-05 → 2026-12-08Delta Air LinesDL779 / DL409$465.002026-10-29T00:45:42Z
2026-12-05 → 2026-12-08Frontier Airlines / Delta Air LinesF92495 + F91405 / DL409$335.002026-10-29T00:45:42Z
2026-12-05 → 2026-12-08Southwest AirlinesWN3330 + WN2484 / WN494 + WN285$370.002026-10-29T00:45:42Z
2026-12-05 → 2026-12-08American AirlinesAA593 + AA1841 / AA1591 + AA593$395.002026-10-29T00:45:42Z
2026-12-05 → 2026-12-08Delta Air LinesDL665 / DL409$465.002026-10-29T00:45:42Z
2026-12-05 → 2026-12-08Southwest AirlinesWN4455 + WN3819 / WN494 + WN285$370.002026-10-29T00:45:42Z
2026-12-05 → 2026-12-08Southwest AirlinesWN237 + WN2405 / WN494 + WN285$370.002026-10-29T00:45:42Z
2026-12-05 → 2026-12-08Delta Air LinesDL830 + DL1787 / DL409$440.002026-10-29T00:45:42Z

2026-12-05 → 2026-12-08 · $465.00

  • Delta Air Lines DL779: ATL 2026-12-05 19:15:00 → ONT 2026-12-05 20:54:00; nonstop; 279 minutes. Local airport times.
  • Delta Air Lines DL409: ONT 2026-12-08 07:05:00 → ATL 2026-12-08 14:05:00; nonstop; 240 minutes. Local airport times.

2026-12-05 → 2026-12-08 · $335.00

  • Frontier Airlines F92495 / F91405: ATL 2026-12-05 13:55:00 → ONT 2026-12-05 18:15:00; 1 stop(s) via DFW; 440 minutes. Local airport times.
    • F92495: ATL 2026-12-05 13:55:00 → DFW 2026-12-05 15:34:00; layover at DFW: 84 minutes.
    • F91405: DFW 2026-12-05 16:58:00 → ONT 2026-12-05 18:15:00.
  • Delta Air Lines DL409: ONT 2026-12-08 07:05:00 → ATL 2026-12-08 14:05:00; nonstop; 240 minutes. Local airport times.

2026-12-05 → 2026-12-08 · $370.00

  • Southwest Airlines WN3330 / WN2484: ATL 2026-12-05 10:05:00 → ONT 2026-12-05 14:05:00; 1 stop(s) via DEN; 420 minutes. Local airport times.
    • WN3330: ATL 2026-12-05 10:05:00 → DEN 2026-12-05 11:35:00; layover at DEN: 70 minutes.
    • WN2484: DEN 2026-12-05 12:45:00 → ONT 2026-12-05 14:05:00.
  • Southwest Airlines WN494 / WN285: ONT 2026-12-08 08:40:00 → ATL 2026-12-08 17:50:00; 1 stop(s) via PHX; 370 minutes. Local airport times.
    • WN494: ONT 2026-12-08 08:40:00 → PHX 2026-12-08 11:00:00; layover at PHX: 80 minutes.
    • WN285: PHX 2026-12-08 12:20:00 → ATL 2026-12-08 17:50:00.

2026-12-05 → 2026-12-08 · $395.00

  • American Airlines AA593 / AA1841: ATL 2026-12-05 17:40:00 → ONT 2026-12-05 21:52:00; 1 stop(s) via PHX; 432 minutes. Local airport times.
    • AA593: ATL 2026-12-05 17:40:00 → PHX 2026-12-05 19:53:00; layover at PHX: 102 minutes.
    • AA1841: PHX 2026-12-05 21:35:00 → ONT 2026-12-05 21:52:00.
  • American Airlines AA1591 / AA593: ONT 2026-12-08 06:20:00 → ATL 2026-12-08 15:33:00; 1 stop(s) via PHX; 373 minutes. Local airport times.
    • AA1591: ONT 2026-12-08 06:20:00 → PHX 2026-12-08 08:48:00; layover at PHX: 66 minutes.
    • AA593: PHX 2026-12-08 09:54:00 → ATL 2026-12-08 15:33:00.

2026-12-05 → 2026-12-08 · $465.00

  • Delta Air Lines DL665: ATL 2026-12-05 09:18:00 → ONT 2026-12-05 11:07:00; nonstop; 289 minutes. Local airport times.
  • Delta Air Lines DL409: ONT 2026-12-08 07:05:00 → ATL 2026-12-08 14:05:00; nonstop; 240 minutes. Local airport times.

2026-12-05 → 2026-12-08 · $370.00

  • Southwest Airlines WN4455 / WN3819: ATL 2026-12-05 06:15:00 → ONT 2026-12-05 10:45:00; 1 stop(s) via DAL; 450 minutes. Local airport times.
    • WN4455: ATL 2026-12-05 06:15:00 → DAL 2026-12-05 07:30:00; layover at DAL: 130 minutes.
    • WN3819: DAL 2026-12-05 09:40:00 → ONT 2026-12-05 10:45:00.
  • Southwest Airlines WN494 / WN285: ONT 2026-12-08 08:40:00 → ATL 2026-12-08 17:50:00; 1 stop(s) via PHX; 370 minutes. Local airport times.
    • WN494: ONT 2026-12-08 08:40:00 → PHX 2026-12-08 11:00:00; layover at PHX: 80 minutes.
    • WN285: PHX 2026-12-08 12:20:00 → ATL 2026-12-08 17:50:00.

2026-12-05 → 2026-12-08 · $370.00

  • Southwest Airlines WN237 / WN2405: ATL 2026-12-05 20:20:00 → ONT 2026-12-05 23:55:00; 1 stop(s) via LAS; 395 minutes. Local airport times.
    • WN237: ATL 2026-12-05 20:20:00 → LAS 2026-12-05 21:55:00; layover at LAS: 60 minutes.
    • WN2405: LAS 2026-12-05 22:55:00 → ONT 2026-12-05 23:55:00.
  • Southwest Airlines WN494 / WN285: ONT 2026-12-08 08:40:00 → ATL 2026-12-08 17:50:00; 1 stop(s) via PHX; 370 minutes. Local airport times.
    • WN494: ONT 2026-12-08 08:40:00 → PHX 2026-12-08 11:00:00; layover at PHX: 80 minutes.
    • WN285: PHX 2026-12-08 12:20:00 → ATL 2026-12-08 17:50:00.

2026-12-05 → 2026-12-08 · $440.00

  • Delta Air Lines DL830 / DL1787: ATL 2026-12-05 08:05:00 → ONT 2026-12-05 12:17:00; 1 stop(s) via SLC; 432 minutes. Local airport times.
    • DL830: ATL 2026-12-05 08:05:00 → SLC 2026-12-05 10:15:00; layover at SLC: 75 minutes.
    • DL1787: SLC 2026-12-05 11:30:00 → ONT 2026-12-05 12:17:00.
  • Delta Air Lines DL409: ONT 2026-12-08 07:05:00 → ATL 2026-12-08 14:05:00; nonstop; 240 minutes. Local airport times.

More dates for this route